CN117433916A - Air energy storage well is with annotating and producing packer testing arrangement - Google Patents
Air energy storage well is with annotating and producing packer testing arrangement Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 117
- 238000004146 energy storage Methods 0.000 title claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 47
- 239000007924 injection Substances 0.000 claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims description 38
- 238000000605 extraction Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 33
- 238000005086 pumping Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 56
- 238000000034 method Methods 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 11
- 230000001502 supplementing effect Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000013401 experimental design Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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Abstract
The invention relates to the technical field of injection and production operation of air energy storage wells, in particular to an injection and production packer testing device for an air energy storage well, and aims to solve the problem that existing laboratory equipment for packer testing is difficult to meet the requirements of large-size injection and production packers. The invention provides an injection and production packer testing device for an air energy storage well, which comprises an upper shaft, an end cover, a cylinder sleeve, a piston, a lower shaft, a spacer ring, a stress joint, a testing sleeve and a quick-connection spacer ring, wherein the upper shaft is connected with the end cover; the end cover, the cylinder sleeve and the test sleeve are sequentially connected from top to bottom, and the packer to be tested is sleeved in the test sleeve; the end cover is provided with an upper hydraulic hole, pressure is injected into the first sealing area through the upper hydraulic hole, and the piston moves in a direction away from the end cover so as to transmit the pressure to the packer to be tested through the lower shaft and the stress joint; the cylinder sleeve is provided with a lower hydraulic hole, pressure is injected into the second sealing area through the lower hydraulic hole, and the piston moves towards the direction close to the end cover, so that the pressure is transmitted to the packer to be tested through the lower shaft and the stress joint.
Description
Technical Field
The invention relates to the technical field of injection and production operation of air energy storage wells, in particular to an injection and production packer testing device for an air energy storage well.
Background
With the continuous growth of global energy demand and the popularization of renewable energy sources, air energy storage technology is becoming a highly efficient energy storage and release mode and is receiving attention. In an air energy storage system, a packer is one of the key components that play a key role. The device is mainly used for storing compressed air in underground or underground gas storage, and controlling and regulating when the stored energy needs to be released. In the operation process of the air energy storage system, the packer needs to have excellent sealing performance, pressure resistance and pressure bearing capacity so as to ensure safe operation of the air storage and efficient energy storage.
However, laboratory equipment currently available on the market for packer testing is mainly designed for small-size packers, and the testing capability of the laboratory equipment is often difficult to meet the requirements of large-size injection and production packers. In particular, for large packers of 18-5/8 inch size, these conventional laboratory equipment are often not suitable for quality verification on the V1 scale.
Disclosure of Invention
The invention aims to provide an injection and production packer testing device for an air energy storage well, which aims to solve the problem that the existing laboratory equipment for packer testing is difficult to meet the requirement of a large-size injection and production packer.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the invention provides an injection and production packer testing device for an air energy storage well, which comprises the following components: the device comprises an upper shaft, an end cover, a cylinder sleeve, a piston, a lower shaft, a spacer ring, a stress joint, a test sleeve and a quick-connection spacer ring;
the end cover, the cylinder sleeve and the test sleeve are sequentially connected from top to bottom, and the packer to be tested is sleeved in the test sleeve;
the stress joint is connected with an upper joint of the packer to be tested, the lower shaft is inserted into the upper end of the stress joint, the piston is sleeved in the cylinder sleeve and forms sliding seal with the cylinder sleeve, the upper end of the piston is connected with the upper shaft, the lower end of the piston is connected with the lower shaft, and the upper shaft penetrates through the end cover;
the isolating ring is sleeved outside the stress joint and connected with the test sleeve;
the quick-connection isolating ring is inserted at the lower end of the test sleeve and sleeved outside the lower joint of the packer to be tested;
a first sealing area is formed between the end cover and the piston, and a second sealing area is formed between the piston and the isolating ring; when the packer to be tested is in a setting state, an upper annular space is formed between the isolation ring and a setting point position of the packer to be tested, and a lower annular space is formed between the setting point position of the packer to be tested and the quick-connection isolation ring;
The end cover is provided with an upper hydraulic hole, pressure is injected into the first sealing area through the upper hydraulic hole, and the piston moves in a direction away from the end cover so as to transmit the pressure to the packer to be tested through the lower shaft and the stress joint;
the cylinder sleeve is provided with a lower hydraulic hole, pressure is injected into the second sealing area through the lower hydraulic hole, and the piston moves towards the direction close to the end cover so as to transmit the pressure to the packer to be tested through the lower shaft and the stress joint;
the test sleeve is provided with an upper annular space operation hole and a lower annular space operation hole, the upper annular space operation hole is communicated with the upper annular space, and the lower annular space operation hole is communicated with the lower annular space.
Further, the method comprises the steps of,
the stress joint is provided with a first groove and a second groove, the second groove is arranged below the first groove, the first groove is communicated with the second groove, and the groove diameter of the second groove is larger than that of the first groove;
after the lower end of the lower shaft stretches into the first groove, the lower shaft rotates along the axis of the lower shaft, so that the extension block at the lower end of the lower shaft stretches into the second groove.
Further, the method comprises the steps of,
The test sleeve is provided with a clamping groove, the clamping groove comprises a first clamping groove, a second clamping groove and a third clamping groove, the second clamping groove is perpendicular to the first clamping groove, and the third clamping groove is perpendicular to the second clamping groove;
the quick connection isolating ring is provided with a protruding block, and when the quick connection isolating ring is installed, the protruding block stretches into the first clamping groove, moves along the first clamping groove, the second clamping groove and the third clamping groove in sequence, and is clamped in the third clamping groove.
Further, the method comprises the steps of,
the inner wall of the test sleeve is provided with a protruding step, and the isolating ring is installed on the protruding table.
Further, the method comprises the steps of,
the injection and production packer testing device for the air energy storage well further comprises a conversion flange;
the conversion flange is connected with the top end of the test sleeve.
Further, the method comprises the steps of,
the injection and production packer testing device for the air energy storage well further comprises a pressure testing plug;
the pressure testing plug is connected with the lower joint of the packer to be tested;
and an oil pressure operation hole is formed in the pressure test plug.
Further, the method comprises the steps of,
the injection and production packer testing device for the air energy storage well further comprises a screw pump mechanism;
the upper hydraulic hole and the lower hydraulic hole are connected with a screw pump mechanism through pipelines;
The screw pump mechanism comprises two double-screw pumps with opposite suction directions, and the output ends of the two double-screw pumps are communicated with the upper hydraulic hole and/or the lower hydraulic hole;
the two double-screw pumps are respectively a first double-screw pump and a second double-screw pump, and the pump shaft of the first double-screw pump is coaxially connected with the pump shaft of the second double-screw pump;
the first twin screw pump and the second twin screw pump can alternately operate.
Further, the method comprises the steps of,
the screw pump mechanism further comprises a first connecting rod, a second connecting rod, a first gear, a second gear, a first extraction pipe and a first output pipe;
the first double-screw pump comprises a first pump vane piece and a second pump vane piece which are matched with each other, and the second double-screw pump comprises a third pump vane piece and a fourth pump vane piece which are matched with each other; the first pump vane member and the third pump vane member are opposite in rotation direction, and the second pump vane member and the fourth pump vane member are opposite in rotation direction;
the first pump blade piece and the third pump blade piece are coaxially sleeved with the first connecting rod, the second pump blade piece and the fourth pump blade piece are coaxially sleeved with the second connecting rod, the first connecting rod and the second connecting rod are arranged in parallel, the two ends of the first connecting rod are connected with the first gear, the two ends of the second connecting rod are connected with the second gear, and the first gear and the second gear which are arranged on the same side are meshed;
The first extraction pipe is communicated with the suction ends of the first double-screw pump and the second double-screw pump during forward rotation, and the first output pipe is communicated with the output ends of the first double-screw pump and the second double-screw pump during forward rotation;
the first connecting rod can rotate around the axis of the first connecting rod, and the first double-screw pump and the second double-screw pump work alternately by controlling the steering of the first connecting rod.
Further, the method comprises the steps of,
the first extraction pipe is a T-shaped pipe, the inlet end of the first extraction pipe is used for being communicated with external liquid storage equipment, the two outlet ends of the first extraction pipe are respectively communicated with the suction ends of the two double-screw pumps, and the two outlet ends of the first extraction pipe are provided with first one-way valves;
the first output pipe is a T-shaped pipe, two inlet ends of the first output pipe are respectively communicated with the output ends of the two double-screw pumps, the outlet ends of the first output pipe are communicated with the upper hydraulic hole and/or the lower hydraulic hole, and the two inlet ends of the first extraction pipe are provided with second check valves.
Further, the method comprises the steps of,
the injection and production packer testing device for the air energy storage well further comprises a driving mechanism;
The output end of the driving mechanism is connected with the first connecting rod and can drive the first connecting rod to rotate around the axis of the first connecting rod.
In summary, the technical effects achieved by the invention are as follows:
according to the injection and production packer testing device for the air energy storage well, packer setting is completed according to a setting program before testing experiments, when pressure bearing capacity testing experiments under compressive stress load are required, the piston moves towards the direction far away from the end cover through the injection pressure of the upper hydraulic hole, hydraulic pressure is transmitted to the packer body through the lower shaft and the stress joint, the pressure injection range can be calculated according to the load tonnage required by the experiments, injection and pressure maintaining can be stopped when the design tonnage is achieved, then the upper annular pressure bearing performance of the high-pressure gas testing packer can be injected into the upper annular operation hole, the injection pressure is determined according to the experimental design requirements, air bubble metering is carried out through the connection collecting device of the lower annular operation hole, and the pressure bearing performance testing under the packer can be carried out in a mode that the high-pressure gas is injected into the lower annular operation hole through the upper annular operation hole; when a bearing capacity test experiment under a tensile stress load is required, pressure is injected into a lower liquid inlet hole, a piston moves towards a direction close to an end cover, hydraulic pressure is transmitted to a packer body through a lower shaft and a stress joint, injection and pressure maintaining can be stopped when the design tonnage is achieved, tensile stress can be applied to the packer, and then the upper annular space and the lower annular space bearing capacity of the packer can be tested according to pressure test operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a device for testing an injection and production packer for an air energy storage well according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the position A in FIG. 1;
FIG. 3 is a schematic view of the lower shaft in semi-section;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a schematic illustration of a semi-sectional structure of a stress joint;
FIG. 6 is a side view of FIG. 5;
FIG. 7 is a schematic structural view of a test cannula;
FIG. 8 is a schematic view of a quick connect spacer ring;
FIG. 9 is a schematic view of the structure of the screw pump mechanism and the drive mechanism;
FIG. 10 is a schematic view of the structure of FIG. 9 at another angle;
FIG. 11 is a schematic view of the structure of the screw pump mechanism;
FIG. 12 is a schematic diagram of a driving mechanism;
fig. 13 is a schematic structural view of the cleaning mechanism.
Icon: 1-upper shaft; 2-end cap bolts; 3-end caps; 4-upper hydraulic holes; 5-a cylinder sleeve; 6-a piston; 7-lower shaft; 701-extension block; 8-a lower hydraulic hole; 9-connecting bolts; 10-converting flange; 11-isolating rings; 12-stress joint; 1201-first groove; 1202-a second groove; 13-upper annulus operator port; 14-testing the sleeve; 1401-first card slot; 1402-second card slot; 1403-third card slot; 1404-projecting steps; 15-lower annulus operator ports; 16-quick connection isolating rings; 1601-bump; 17-pressure testing plugs; 18-oil pressure operation hole;
100-screw pump mechanism; 110-a first twin screw pump; 111-a first pump vane; 112-a second pump vane; 120-a second twin screw pump; 121-a third pump vane; 122-fourth pump vane; 130-a first connecting rod; 140-a second connecting rod; 150-a first gear; 160-a second gear; 170-a first extraction tube; 171-a first one-way valve; 180-a first output tube; 181-a second one-way valve; 190-a housing;
200-a driving mechanism; 210-an electric motor; 211-a pressure sensitive switch; 220-rotating shaft; 221-a magnetic coupler; 230-supporting frame; 240-a third gear; 250-fourth gear; 260-a fifth gear; 270-sixth gear; 280-screw; 290-cross bar;
300-cleaning mechanism; 310-a second extraction tube; 311-a third one-way valve; 320-a second output tube; 321-fourth one-way valve; 330-a slide; 340-a water storage bin; 350-a water level sensor; 360-T type water supplementing pipe; 361-electromagnetic three-way valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Aiming at the requirement of testing large-size air energy storage injection and production packers, in particular to a large-size packer with the size of 18-5/8 inch, a corresponding testing device is required to be developed urgently to solve the problem.
In view of the above, the invention provides a packer testing device for air energy storage well, comprising: the device comprises an upper shaft 1, an end cover 3, a cylinder sleeve 5, a piston 6, a lower shaft 7, a spacer ring 11, a stress joint 12, a test sleeve 14 and a quick-connection spacer ring 16; the upper shaft 1, the cylinder sleeve 5 and the test sleeve 14 are sequentially connected from top to bottom, and the packer to be tested is sleeved in the test sleeve 14; the stress joint 12 is connected with an upper joint of the packer to be tested, the lower shaft 7 is inserted into the upper end of the stress joint 12, the piston 6 is sleeved in the cylinder sleeve 5 and forms sliding seal with the cylinder sleeve 5, the upper end of the piston 6 is connected with the upper shaft 1, the lower end of the piston 6 is connected with the lower shaft 7, and the upper shaft 1 passes through the end cover 3; the isolating ring 11 is sleeved outside the stress joint 12 and is connected with the test sleeve 14; the quick-connection isolating ring 16 is inserted into the lower end of the test sleeve 14 and sleeved outside the lower joint of the packer to be tested; a first sealing area is formed between the end cover 3 and the piston 6, and a second sealing area is formed between the piston 6 and the isolating ring 11; when the packer to be tested is in a setting state, an upper annular space is formed between the isolation ring 11 and the setting point of the packer to be tested, and a lower annular space is formed between the setting point of the packer to be tested and the quick-connection isolation ring 16; the end cover 3 is provided with an upper hydraulic hole 4, pressure is injected into the first sealing area through the upper hydraulic hole 4, and the piston 6 moves in a direction away from the end cover 3 so as to transmit the pressure to the packer to be tested through the lower shaft 7 and the stress joint 12; the cylinder sleeve 5 is provided with a lower hydraulic hole 8, pressure is injected into the second sealing area through the lower hydraulic hole 8, and the piston 6 moves towards the direction close to the end cover 3 so as to transmit the pressure to the packer to be tested through the lower shaft 7 and the stress joint 12; the test sleeve 14 is provided with an upper annular operating hole 13 and a lower annular operating hole 15, the upper annular operating hole 13 is communicated with the upper annular space, and the lower annular operating hole 15 is communicated with the lower annular space.
According to the injection and production packer testing device for the air energy storage well, packer setting is completed according to a setting program before testing experiments, when pressure bearing capacity testing experiments under compressive stress load are required, pressure is injected through the upper hydraulic hole 4, the piston 6 moves in the direction away from the end cover 3, hydraulic pressure is transmitted to the packer body through the lower shaft 7 and the stress joint 12, the pressure injection range can be calculated according to the load tonnage required by the experiments, injection and pressure maintaining can be stopped when the design tonnage is achieved, then upper annular pressure bearing performance of the high-pressure gas testing packer can be injected into the upper annular pressure operating hole 13, the injection pressure is determined according to the experimental design requirements, the collecting device is connected through the lower annular pressure operating hole 15 for bubble metering, and the lower annular pressure bearing performance testing of the packer can be performed in a mode that high-pressure gas is injected into the lower annular pressure operating hole 15 and bubbles are collected through the upper annular pressure operating hole 13; when a bearing capacity test experiment under a tensile stress load is required, pressure is injected into a lower liquid inlet hole, a piston 6 moves towards a direction close to an end cover 3, hydraulic pressure is transmitted to a packer body through a lower shaft 7 and a stress joint 12, injection and pressure maintaining can be stopped when the design tonnage is achieved, tensile stress can be applied to the packer, and then the upper annular space and the lower annular space bearing capacity of the packer can be tested according to pressure test operation.
The structure and shape of the injection and production packer testing device for an air energy storage well according to this embodiment will be described in detail below with reference to fig. 1 to 13.
Regarding the structure of the injection and production packer testing device for the air energy storage well provided by the embodiment, in detail:
as shown in fig. 1 and 2, the end cover 3, the cylinder sleeve 5 and the test sleeve 14 are sequentially connected from top to bottom, and the packer to be tested is sleeved in the test sleeve 14.
Specifically, the bottom end of the end cover 3 is inserted into the sealing end face of the upper end of the cylinder sleeve 5, and the bolt holes of the end cover 3 are aligned with the bolt holes of the upper end of the cylinder sleeve 5 and fastened by the end cover bolts 2; the top end sealing end face of the cylinder sleeve 5, which is inserted into the test sleeve 14, is provided with bolt holes of a flange plate at the bottom end of the cylinder sleeve 5, the bolt holes of the conversion flange 10 are aligned and fixed by connecting bolts 9, and the conversion flange 10 is connected with the top end of the test sleeve 14 by screw threads. The test cannula 14 has an inner diameter of phi 443.3mm.
The stress joint 12 is connected with an upper joint of the packer to be tested through screw threads, the lower shaft 7 is inserted into the upper end of the stress joint 12, the piston 6 is sleeved in the cylinder sleeve 5 and forms sliding seal with the cylinder sleeve 5, the upper end of the piston 6 is connected with the upper shaft 1 through screw threads, the lower end of the piston 6 is connected with the lower shaft 7 through screw threads, and the upper shaft 1 penetrates through the end cover 3.
Regarding the connection mode of the lower shaft 7 and the stress joint 12, specifically, as shown in fig. 3, 4, 5 and 6, the stress joint 12 is provided with a first groove 1201 and a second groove 1202, the second groove 1202 is disposed below the first groove 1201, the first groove 1201 is communicated with the second groove 1202, the groove diameter of the second groove 1202 is larger than that of the first groove 1201, after the lower end of the lower shaft 7 extends into the first groove 1201, the lower shaft 7 rotates along its own axis, so that the extension block 701 at the lower end of the lower shaft 7 extends into the second groove 1202. Preferably, the bottom end of the lower shaft 7 and the extension block 701 disposed at the bottom end form an oblong boss (i.e. the bottom end of the lower shaft 7 is designed with an oblong boss), the lower end of the lower shaft 7 is inserted into the slot hole at the upper end of the stress joint 12, and the lower shaft 7 and the stress joint 12 can be locked together by rotating the lower shaft 7 to 90 ° at this time, so as to transmit axial stress.
The isolating ring 11 is sleeved on the sealing end face of the stress joint 12 and is connected with the test sleeve 14.
Specifically, as shown in fig. 2, the inner wall of the test sleeve 14 is provided with a protruding step 1404, and the spacer 11 is mounted on the protruding step 1404, and when the spacer 11 is mounted, the spacer 11 contacts the inner sealing end surface of the upper end of the test sleeve 14 and forms a seal against the protruding step 1404 of the upper end of the test sleeve 14 and a downward positional constraint. The bottom end of the cylinder sleeve 5 is connected with the top end of the isolating ring 11 as a position constraint for the isolating ring 11 upwards.
The quick-connection isolating ring 16 is inserted into the lower end of the test sleeve 14 and sleeved outside the lower joint of the packer to be tested, and the quick-connection isolating ring 16 is inserted into the annular space between the lower joint of the packer to be tested and the lower end of the test sleeve 14 and is called sealing. The pressure testing plug 17 is arranged on the lower joint of the packer to be tested through screw threads, and an oil pressure operation hole 18 is formed in the pressure testing plug 17.
Specifically, as shown in fig. 7 and 8, the test sleeve 14 is provided with a clamping groove, the clamping groove comprises a first clamping groove 1401, a second clamping groove 1402 and a third clamping groove 1403, the second clamping groove 1402 is perpendicular to the first clamping groove 1401, and the third clamping groove 1403 is perpendicular to the second clamping groove 1402; the quick-connection isolating ring 16 is provided with a protruding block 1601, and when the quick-connection isolating ring 16 is installed, the protruding block 1601 extends into the first clamping groove 1401, sequentially moves along the first clamping groove 1401, the second clamping groove 1402 and the third clamping groove 1403, and is clamped in the third clamping groove 1403.
Preferably, referring to FIG. 7, the shape of the detent is inverted J-shaped, and the protruding block on the outside of the snap-on spacer ring 16 is pushed in along the J-shaped opening at the lower end of the test sleeve 14 and rotated clockwise until the protruding block is screwed to the root of the J-shaped groove.
The annular space between the end cover 3 and the piston 6 forms a first sealing area, and the annular space between the piston 6 and the isolating ring 11 forms a second sealing area; when the packer to be tested is in a setting state, an upper annular space is formed between the isolation ring 11 and the setting point of the packer to be tested, and a lower annular space is formed between the setting point of the packer to be tested and the quick-connection isolation ring 16;
The end cover 3 is provided with an upper hydraulic hole 4, pressure is injected into the first sealing area through the upper hydraulic hole 4, and the piston 6 moves in a direction away from the end cover 3 so as to transmit the pressure to the packer to be tested through the lower shaft 7 and the stress joint 12;
the cylinder sleeve 5 is provided with a lower hydraulic hole 8, pressure is injected into the second sealing area through the lower hydraulic hole 8, and the piston 6 moves towards the direction close to the end cover 3 so as to transmit the pressure to the packer to be tested through the lower shaft 7 and the stress joint 12;
the test sleeve 14 is provided with an upper annular operating hole 13 and a lower annular operating hole 15, the upper annular operating hole 13 is communicated with the upper annular space, and the lower annular operating hole 15 is communicated with the lower annular space.
The working process of the injection and production packer testing device for the air energy storage well provided by the embodiment is as follows:
firstly, connecting the upper hydraulic hole 4, the lower hydraulic hole 8, the upper annular operating hole 13, the lower annular operating hole 15 and the oil pressure operating hole 18 with corresponding pipelines, then soaking the whole tool in the required liquid and temperature environment for soaking and heat preservation, pressing the tool into the packer through the oil pressure operating hole 18 after heat preservation is finished, finishing packer setting according to a setting program, and then discharging the internal pressure through the oil pressure operating hole 18.
When the pressure bearing capacity test experiment under the pressure stress load is required to be carried out, the pressure piston 6 can be injected through the upper hydraulic hole 4 to downwards transmit hydraulic pressure to the packer body through the lower shaft 7 and the stress joint 12, the pressure injection range can be calculated according to the load tonnage required by the experiment, the injection can be stopped and the pressure is maintained when the design tonnage is reached, then the upper annular pressure bearing performance of the high-pressure gas test packer can be injected into the upper annular operation hole 13, the injection pressure is determined according to the experimental design requirement, the collection device is connected through the lower annular operation hole 15 for bubble metering, and the packer lower annular pressure bearing performance test can be carried out in a mode of injecting the high-pressure gas into the lower annular operation hole 15 for collecting bubbles through the upper annular operation hole 13.
When the test of the bearing capacity under the tensile stress load is required, the pressure piston 6 can be injected into the lower liquid inlet hole to ascend so as to transmit the hydraulic pressure to the packer body through the lower shaft 7 and the stress connector 12, and when the designed tonnage is reached, the injection and the pressure maintaining can be stopped, so that the tensile stress can be applied to the packer, and then the bearing capacity of the upper annular space and the lower annular space of the packer can be tested according to the pressure test operation.
In order to effectively inject hydraulic pressure into the upper hydraulic hole 4 and the lower hydraulic hole when a test experiment is performed, the embodiment is further provided with a screw pump mechanism 100, and the upper hydraulic hole 4 and the lower hydraulic hole 8 are connected with the screw pump mechanism 100 through pipelines.
Regarding the shape and structure of the screw pump mechanism 100, in detail:
as shown in fig. 11, the screw pump mechanism 100 includes two twin-screw pumps 280 having opposite suction directions, the output ends of the two twin-screw pumps 280 being in communication with the upper hydraulic port 4 and/or the lower hydraulic port 8, and the liquid medium passing through the twin-screw pumps 280 and flowing to the upper hydraulic port 4 and/or the lower hydraulic port 8 through the output ends of the twin-screw pumps 280. The two double-screw pumps 280 are respectively a first double-screw pump 110 and a second double-screw pump 120, and the pump shaft of the first double-screw pump 110 is coaxially connected with the pump shaft of the second double-screw pump 120; the first twin screw pump 110 and the second twin screw pump 120 are opposite in pumping direction, and the first twin screw pump 110 and the second twin screw pump 120 can alternately operate.
Specifically, the suction ends of the first and second twin-screw pumps 110 and 120 are all communicated with the external liquid storage device when the first and second twin-screw pumps 110 and 120 are rotated forward, and the output ends of the first and second twin-screw pumps 110 and 120 are all communicated with the upper and/or lower hydraulic holes 4 and 8 when the first and second twin-screw pumps 110 and 120 are rotated forward, and because the suction directions of the first and second twin-screw pumps 110 and 120 are opposite, only one of the twin-screw pumps 280 is operated during operation, so that the problems of abrasion, damage and the like caused by long-term operation of a single twin-screw pump 280 can be avoided.
Further, as shown in fig. 11, the screw pump mechanism 100 further includes a housing 190, a first connecting rod 130, a second connecting rod 140, a first gear 150, a second gear 160, a first extraction pipe 170, and a first output pipe 180. The first twin-screw pump 110 includes a first pump vane 111 and a second pump vane 112 that cooperate with each other, and the second twin-screw pump 120 includes a third pump vane 121 and a fourth pump vane 122 that cooperate with each other; the housing 190 is provided with two spaces, the suction end and the output end of which are opposite, the first twin screw pump 110 being in one space and the second twin screw pump 120 being in the other space. The first pumping vane 111 is rotated in the opposite direction to the third pumping vane 121, and the second pumping vane 112 is rotated in the opposite direction to the fourth pumping vane 122. The first pump vane 111 and the third pump vane 121 are coaxially sleeved on the first connecting rod 130, the second pump vane 112 and the fourth pump vane 122 are coaxially sleeved on the second connecting rod 140, the first connecting rod 130 is rotationally connected in the shell 190, the second connecting rod 140 is rotationally connected in the shell 190, the first connecting rod 130 and the second connecting rod 140 are arranged in parallel, the two ends of the first connecting rod 130 are connected with the first gear 150, the two ends of the second connecting rod 140 are connected with the second gear 160, the first gear 150 and the second gear 160 which are arranged on the same side are meshed, and the first connecting rod 130 and the second connecting rod 140 synchronously and reversely rotate.
The first pumping pipe 170 communicates with the suction ends of the first and second twin-screw pumps 110 and 120 when they are rotated forward, and the first output pipe 180 communicates with the output ends of the first and second twin-screw pumps 110 and 120 when they are rotated forward; the first connecting rod 130 can rotate around its own axis, and the first twin screw pump 110 and the second twin screw pump 120 are alternately operated by controlling the steering of the first connecting rod 130.
In an alternative embodiment, the first suction pipe 170 is provided as a T-pipe, an inlet end of the first suction pipe 170 is used for communicating with an external liquid storage device, two outlet ends of the first suction pipe 170 are respectively communicated with suction ends of two twin screw 280 pumps, and both outlet ends of the first suction pipe 170 are provided with a first check valve 171; the first output pipe 180 is a T-shaped pipe, two inlet ends of the first output pipe 180 are respectively communicated with output ends of the two double screw pumps 280, an outlet end of the first output pipe 180 is communicated with the upper hydraulic hole 4 and/or the lower hydraulic hole 8, and two inlet ends of the first extraction pipe 170 are respectively provided with a second one-way valve 181.
Specifically, the first connecting rod 130 can rotate around its own axis to drive the second connecting rod 140 to rotate through the first gear 150 and the second gear 160, the first pumping vane 111 and the second pumping vane 112 rotate in opposite directions and are mutually matched, the third pumping vane 121 and the fourth pumping vane 122 rotate in opposite directions and are mutually matched, the first pumping vane 111 and the third pumping vane 121 rotate in opposite directions, the second pumping vane 112 and the fourth pumping vane 122 rotate in opposite directions, therefore, when the first twin-screw pump 110 pumps liquid up to the upper hydraulic hole 4 or the lower hydraulic hole 8, the second twin-screw pump 120 does not pump liquid up to the upper hydraulic hole 4 or the lower hydraulic hole 8, the junction of the first pumping pipe 170 and the suction ends of the two twin-screw pumps 280 is provided with a first check valve 171, the junction of the first pumping pipe 170 and the output ends of the two twin-screw pumps 280 can only flow in opposite directions, the junction of the first output pipe 180 and the output ends of the two twin-screw pumps 280 is provided with a second check valve 181, and the second pumping pipe 180 can only pump liquid into the twin-screw pumps 180 through the first check valve 181. When the first and second twin-screw pumps 110 and 120 are in forward motion, the first and second check valves 171 and 181 are opened; when the first and second twin screw pumps 110 and 120 are reversed, the first and second check valves 171 and 181 are closed to ensure that only one twin screw 280 pump is running at the same time. Referring specifically to fig. 11, when the first twin-screw pump 110 is operated, the second suction pipe 310 and the second output pipe 320 at the lower portion corresponding to the first twin-screw pump 110 are not connected by the third check valve 311 and the fourth check valve 321, and at this time, the first twin-screw pump 110 rotates to generate suction force at the first suction pipe 170 and generate discharge force at the first output pipe 180, and in this state the first twin-screw pump 110 pumps liquid into the upper hydraulic hole 4 or the lower feed hole; the second twin screw pump 120 operates when the rotation shaft 220 is turned around.
In order to drive the two twin-screw pumps 280 to alternately operate, as shown in fig. 9 and 10, the embodiment is further provided with a driving mechanism 200, wherein an output end of the driving mechanism 200 is connected with the first connecting rod 130, so that the first connecting rod 130 can be driven to rotate around the axis thereof, and the two twin-screw pumps 280 can alternately operate by controlling the forward and reverse rotation directions of the driving mechanism 200. Regarding the shape and structure of the driving mechanism 200, in detail:
as shown in fig. 11 and 12, the driving mechanism 200 includes a motor 210 and a rotating shaft 220, the rotating shaft 220 is connected with an output end of the motor 210, a magnetic coupler 221 is disposed between the rotating shaft 220 and the first connecting rod 130, and the rotating shaft 220 and the first connecting rod 130 are commonly provided with the magnetic coupler 221. The motor 210 drives the rotating shaft 220 to rotate, and the first connecting rod 130 is connected with the rotating shaft 220 through the magnetic coupler 221, so that the rotating shaft 220 can drive the first connecting rod 130 to rotate in a non-contact manner, and when the first connecting rod 130 encounters resistance to be blocked, the rotating shaft 220 can still rotate, so that the risk of burning out of the motor 210 can be avoided.
In order to allow the motor 210 to turn, the driving mechanism 200 further includes a support frame 230, a third gear 240, a fourth gear 250, a fifth gear 260, a sixth gear 270, a screw 280, and a cross bar 290 as shown in fig. 12. The third gear 240 is coaxially connected with the first connecting rod 130, the fourth gear 250 is coaxially connected with the rotating shaft 220, two supporting frames 230 are provided, the fifth gear 260 and the sixth gear 270 are respectively and fixedly rotated on the two supporting frames 230, the fifth gear 260 is meshed with the third gear 240, and the sixth gear 270 is meshed with the fourth gear 250; screw 280 is threadedly coupled to the middle of fifth gear 260; the cross bar 290 is coupled to an end of the screw 280 remote from the fifth gear 260, while the cross bar 290 is axially slid in the middle of the sixth gear 270. When the rotation speed of the first connecting rod 130 is lower than the rotation shaft 220, the rotation speed of the sixth gear 270 is higher than that of the fifth gear 260, and the screw 280 can axially slide relative to the fifth gear 260; the opposite sides of the two supporting frames 230 are connected with pressure-sensitive switches 211, the pressure-sensitive switches 211 are used for controlling the motor 210 to rotate forward and reversely, and the screw 280 alternately touches the two pressure-sensitive switches 211 when moving axially in a reciprocating manner, so that the steering direction of the motor 210 is adjusted, and the two double-screw 280 pumps work alternately.
Specifically, the motor 210 drives the rotating shaft 220 to rotate forward, the rotating shaft 220 drives the first connecting rod 130 to rotate through the magnetic coupler 221, when impurities enter the inside of the double-screw 280 pump, the rotation of the first connecting rod 130 is blocked when the impurities are excessive, and at the moment, the rotating speed of the first connecting rod 130 is lower than that of the rotating shaft 220; when the rotation shaft 220 is the same as the rotation shaft 130, the rotation speeds of the third gear 240 and the fourth gear 250 are the same, and simultaneously, because the diameters of the third gear 240, the fourth gear 250, the fifth gear 260 and the sixth gear 270 are all the same, the rotation speeds of the fifth gear 260 and the sixth gear 270 are also the same, the sixth gear 270 is connected with the screw 280 through the cross rod 290, so that the rotation speed of the sixth gear 270 is always the same as the rotation speed of the screw 280, the screw 280 does not rotate relative to the fifth gear 260 when the rotation speeds of the fifth gear 260 and the sixth gear 270 are the same, so that the screw 280 does not axially slide relative to the fifth gear 260, and when the rotation speed of the first connection shaft 130 is lower than the rotation speed of the rotation shaft 220, the rotation speed of the fifth gear 260 is lower than the rotation speed of the sixth gear 270, and at this time the screw 280 can rotate relative to the fifth gear 260, so that the screw 280 axially slides relative to the fifth gear 260, at this time, the screw 280 abuts against the pressure-sensitive switch 211 at the position of the fifth gear 260, the pressure-sensitive switch 211 controls the motor 210, so that the first twin-screw pump 110 and the working state of the second twin-screw pump 120 are switched; at the initial stage of the reverse rotation of the motor 210, the first connecting rod 130 does not rotate along with the rotating shaft 220 due to inertia, so that the screw 280 reversely rotates and moves relative to the fifth gear 260, so that the screw 280 moves away from the fifth gear 260, at this time, the pressure-sensitive switch 211 at the fifth gear 260 is not contacted with the screw 280 any more, when the rotation drives the first connecting rod 130 to reversely rotate, if the rotation speed of the first connecting rod 130 is reduced again, the screw 280 moves towards the pressure-sensitive switch 211 at the sixth gear 270, so that the cross rod 290 at the end part of the screw 280 abuts against the pressure-sensitive switch 211 at the sixth gear 270, and the motor 210 is turned to switch the running states of the two double-screw 280 pumps again.
In order to clean the pump body, as shown in fig. 13, the present embodiment is further provided with a cleaning mechanism 300, the cleaning mechanism 300 is disposed below the screw pump mechanism 100, the cleaning mechanism 300 includes a second extraction pipe 310, a second output pipe 320, and a water storage bin 340 for storing clean water, specifically, two second extraction pipes 310 and 320 are respectively disposed, the two second extraction pipes 310 are respectively connected to suction ends when the two twin-screw pumps 280 are reversed, and the two second output pipes 320 are respectively connected to output ends when the two twin-screw pumps 280 are reversed; the second extraction pipe 310 is provided with a third one-way valve 311, and the second output pipe 320 is provided with a fourth one-way valve 321; the water storage bin 340 is disposed below the second extraction pipe 310 and is communicated with the second extraction pipe 310, and a port of the second extraction pipe 310 extends into the water surface of the water storage bin 340, so that clear water in the bin is extracted through the corresponding second extraction pipe 310 when the double screw 280 pump is reversed, and the inside of the double screw 280 pump is cleaned.
Specifically, during normal operation of the twin screw 280 pump (i.e., when liquid is pumped into the upper hydraulic port 4 or the lower hydraulic port), the first check valve 171 and the second check valve 181 are opened, the first extraction pipe 170 extracts liquid, and the first output pipe 180 discharges liquid to the upper hydraulic port 4 or the lower hydraulic port 8; when the double-screw 280 pump is reversed, the first check valve 171 and the second check valve 181 are closed, the third check valve 311 and the fourth check valve 321 are opened, the reversed double-screw 280 pump pumps clean water through the second pumping pipe 310, then the clean water flows in the reversed double-screw 280 pump, the clean water washes the inside of the double-screw 280 pump, and finally the clean water is discharged through the second output pipe 320, and impurities in the double-screw 280 pump are washed in the process, so that the effect of washing the pump is achieved.
In an alternative embodiment, the cleaning mechanism 300 further includes a slider 330, a T-shaped water replenishment pipe 360, and a water level sensor 350, the slider 330 being connected to the lower portion of the screw pump mechanism 100; the water storage bin 340 is slidably connected with the sliding seat 330 in the vertical direction, the T-shaped water supplementing pipe 360 is connected with the side wall of the water storage bin 340,
one end of the T-shaped water supplementing pipe 360 is communicated with the lower part of the water storage bin 340, and the ports at the other two ends of the T-shaped water supplementing pipe 360 are all higher than the liquid level in the Yu Chushui bin 340 and are respectively communicated with an external water source and air; the T-shaped water supplementing pipe 360 is provided with an electromagnetic three-way valve 361; the water level sensor 350 is connected to the inner wall of the water storage bin 340, and when the water level in the water storage bin 340 drops to the position of the water level sensor 350, the water storage bin 340 drops so that the port of the second extraction pipe 310 is above the liquid level in the water storage bin 340, and simultaneously the electromagnetic three-way valve 361 operates so that the water storage tank is communicated with the outside air.
Specifically, the port of the second extraction pipe 310 is extended into the liquid surface of the sump 340 in the initial state, so that the inverted twin-screw 280 pump can extract the fresh water in the sump through the second extraction pipe 310 to wash the inside of the twin-screw 280 pump. When the liquid level in the bin reaches the position of the water level sensor 350, the water storage bin 340 vertically moves downwards on the sliding seat 330, so that the port of the second extraction pipe 310 is positioned above the liquid level of the water storage bin 340, the cleaned double-screw 280 pump extracts external air through the second extraction pipe 310, the second extraction pipe 310 is still positioned in the water storage bin 340, so that the air in the water storage bin 340 is extracted into the double-screw 280 pump, the water storage bin 340 is communicated with the external air through the T-shaped water supplementing pipe 360, the T-shaped water supplementing pipe 360 is communicated with the bottom of the water storage bin 340, and therefore, when the external air enters the water storage bin 340, the external air is filtered through residual water in the water storage bin 340, so that the air extracted by the double-screw 280 pump does not contain larger impurities and abrades the inside, pure air can be ensured, and the abrasion of pump blades of the screw 280 pump is avoided; the rotation of the rotation shaft 220 is captured by means of a sensor, the sensor captures that the electromagnetic three-way valve 361 on the T-shaped water supplementing pipe 360 connected to the side wall of the water storage bin 340 at the lower part of the inverted double screw 280 pump after the rotation of the rotation shaft 220 runs, so that the water storage bin 340 is communicated with an external water source for a period of time, clean water in the water storage bin 340 is supplemented, when the water level sensor 350 in the water storage bin 340 detects that the water level rises, the water storage bin 340 moves vertically upwards on the sliding seat 330, and then the electromagnetic three-way valve 361 runs again, so that the water storage bin 340 is communicated with external air to stabilize the internal and external air pressure of the water storage bin 340.
The injection and production packer testing device for the air energy storage well provided by the embodiment has the following advantages:
1. the inner diameter of the test sleeve 14 is phi 443.3mm, a tensile stress device is mainly formed by the cylinder sleeve 5, the piston 6, the upper shaft 1 and the lower shaft 7 at the top, a pressure test device is formed by the test sleeve 14, the isolating ring 11, the quick-connection isolating ring 16 and the like at the lower end, so that the test functions of pressure circulation, reverse rotation and the like of the packer under the condition of bearing tensile stress or compressive stress can be realized, and the requirement of V1 level test conditions can be met by utilizing the device.
2. The bottom end of the lower shaft 7 is provided with an oblong boss, the top end of the stress joint 12 is provided with a groove matched with the boss at the bottom end of the lower shaft 7, the root of the groove is hollowed out to 90 degrees in the clockwise direction, the lower shaft 7 can be inserted into the root to be reached along the hole at the top end of the stress joint 12, the oblong boss at the bottom of the lower shaft 7 can be clamped in the stress joint 12 by rotating the lower shaft 90 degrees in the clockwise direction, and the upward or downward force can be transmitted to the stress joint 12 through the lower shaft 7.
3. The sealing end face of the upper end of the test sleeve 14 is bonded to the outer edge of the isolation ring 11 to form sealing by using an O-shaped sealing ring, and the sealing end face of the upper end of the test sleeve 14 is abutted against a boss at the upper end of the test sleeve 14 to form position constraint, the sealing end face of the stress joint 12 is bonded to the inner edge of the isolation ring 11 to form sealing by using the O-shaped sealing ring, and when the cylinder sleeve 5 is connected with the conversion flange 10 at the upper end of the test sleeve 14, the bottom end of the cylinder sleeve 5 just abuts against the upper end of the isolation ring 11 to form position constraint.
4. The bottom end of the test sleeve 14 is provided with J-shaped clamping grooves which are uniformly distributed and can be matched with the protruding blocks on the outer edge of the quick-connection isolating ring 16, so that the conditions that the operation is difficult and the sealing is difficult to guarantee due to overlarge outer diameter of parts during quick-connection are avoided.
5. In the screw pump mechanism 100, since the pumping directions of the two twin-screw pumps 280 are opposite, only one twin-screw pump 280 operates at the same time, and the two twin-screw pumps 280 can alternately operate to drive the flow of fluid through the steering of the motor 210, so that the damage caused by long-term operation abrasion of the single twin-screw pump 280 is avoided.
The device for testing the injection and production packer for the air energy storage well is a testing device for a large-size injection and production packer, particularly, for a large-size packer with the size of 18-5/8 inch (namely 18-5/8'), the pressure bearing performance test of the packer can be realized on the premise of providing a pulling and pressing load, and further, the V1-level performance test can be completed by combining conventional heating equipment, water bath equipment and high-pressure air source equipment by using the device, the blank of the field in the aspect of testing the large-size packer is filled, the problem that the V1-level quality verification cannot be performed is solved, important reference is provided for performance evaluation and quality control of the air energy storage injection and production packer, and the field requirement of an air energy storage power generation technology is met.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. An air energy storage well is with annotating and producing packer testing arrangement, its characterized in that includes: the device comprises an upper shaft (1), an end cover (3), a cylinder sleeve (5), a piston (6), a lower shaft (7), an isolating ring (11), a stress joint (12), a test sleeve (14) and a quick-connection isolating ring (16);
the end cover (3), the cylinder sleeve (5) and the test sleeve (14) are sequentially connected from top to bottom, and the packer to be tested is sleeved in the test sleeve (14);
the stress joint (12) is connected with an upper joint of the packer to be tested, the lower shaft (7) is inserted into the upper end of the stress joint (12), the piston (6) is sleeved in the cylinder sleeve (5) and forms sliding seal with the cylinder sleeve (5), the upper end of the piston (6) is connected with the upper shaft (1), the lower end of the piston is connected with the lower shaft (7), and the upper shaft (1) passes through the end cover (3);
The isolating ring (11) is sleeved outside the stress joint (12) and is connected with the test sleeve (14);
the quick-connection isolating ring (16) is inserted into the lower end of the test sleeve (14) and sleeved outside the lower joint of the packer to be tested;
a first sealing area is formed between the end cover (3) and the piston (6), and a second sealing area is formed between the piston (6) and the isolating ring (11); when the packer to be tested is in a setting state, an upper annular space is formed between the isolation ring (11) and a setting point position of the packer to be tested, and a lower annular space is formed between the setting point position of the packer to be tested and the quick-connection isolation ring (16);
the end cover (3) is provided with an upper hydraulic hole (4), pressure is injected into the first sealing area through the upper hydraulic hole (4), and the piston (6) moves in a direction away from the end cover (3) so as to transmit the pressure to the packer to be tested through the lower shaft (7) and the stress joint (12);
the cylinder sleeve (5) is provided with a lower hydraulic hole (8), pressure is injected into the second sealing area through the lower hydraulic hole (8), and the piston (6) moves towards the direction close to the end cover (3) so as to transmit the pressure to the packer to be tested through the lower shaft (7) and the stress joint (12);
The test casing (14) is provided with an upper annular space operation hole (13) and a lower annular space operation hole (15), the upper annular space operation hole (13) is communicated with the upper annular space, and the lower annular space operation hole (15) is communicated with the lower annular space.
2. The injection and production packer testing device for the air energy storage well according to claim 1, wherein,
the stress joint (12) is provided with a first groove (1201) and a second groove (1202), the second groove (1202) is arranged below the first groove (1201), the first groove (1201) is communicated with the second groove (1202), and the groove diameter of the second groove (1202) is larger than that of the first groove (1201);
after the lower end of the lower shaft (7) stretches into the first groove (1201), the lower shaft (7) rotates along the axis of the lower shaft, so that an extension block (701) at the lower end of the lower shaft (7) stretches into the second groove (1202).
3. The injection and production packer testing device for the air energy storage well according to claim 1, wherein,
the test sleeve (14) is provided with a clamping groove, the clamping groove comprises a first clamping groove (1401), a second clamping groove (1402) and a third clamping groove (1403), the second clamping groove (1402) is perpendicular to the first clamping groove (1401), and the third clamping groove (1403) is perpendicular to the second clamping groove (1402);
Be provided with protruding piece (1601) on connect isolating ring soon (16), install connect isolating ring soon (16) when, protruding piece (1601) stretches into first draw-in groove (1401), follow in proper order first draw-in groove (1401), second draw-in groove (1402) and third draw-in groove (1403) remove, and the joint in third draw-in groove (1403).
4. The injection and production packer testing device for the air energy storage well according to claim 1, wherein,
the inner wall of the test sleeve (14) is provided with a protruding step (1404), and the isolating ring (11) is mounted on the protruding table.
5. The injection and production packer testing device for the air energy storage well according to claim 1, wherein,
also comprises a conversion flange (10);
the conversion flange (10) is connected to the top end of the test sleeve (14).
6. The injection and production packer testing device for the air energy storage well according to claim 1, wherein,
the pressure test plug (17) is also included;
the pressure testing plug (17) is connected with the lower joint of the packer to be tested;
an oil pressure operation hole (18) is formed in the pressure test plug (17).
7. The injection and production packer testing device for the air energy storage well according to claim 1, wherein,
Also comprises a screw pump mechanism (100);
the upper hydraulic hole (4) and the lower hydraulic hole (8) are connected with a screw pump mechanism (100) through pipelines;
the screw pump mechanism (100) comprises two double-screw pumps with opposite suction directions, and the output ends of the two double-screw pumps are communicated with the upper hydraulic hole (4) and/or the lower hydraulic hole (8);
the two twin-screw pumps are respectively a first twin-screw pump (110) and a second twin-screw pump (120), and the pump shaft of the first twin-screw pump (110) is coaxially connected with the pump shaft of the second twin-screw pump (120);
the first twin screw pump (110) and the second twin screw pump (120) are capable of alternately operating.
8. The injection and production packer testing device for the air energy storage well according to claim 7, wherein,
the screw pump mechanism (100) further comprises a first connecting rod (130), a second connecting rod (140), a first gear (150), a second gear (160), a first extraction pipe (170) and a first output pipe (180);
the first twin-screw pump (110) comprises a first pump vane (111) and a second pump vane (112) which are matched with each other, and the second twin-screw pump (120) comprises a third pump vane (121) and a fourth pump vane (122) which are matched with each other; -the first pumping vane (111) and the third pumping vane (121) are counter-rotating, and the second pumping vane (112) and the fourth pumping vane (122) are counter-rotating;
The first pump blade piece (111) and the third pump blade piece (121) are coaxially sleeved with the first connecting rod (130), the second pump blade piece (112) and the fourth pump blade piece (122) are coaxially sleeved with the second connecting rod (140), the first connecting rod (130) and the second connecting rod (140) are arranged in parallel, two ends of the first connecting rod (130) are connected with the first gear (150), two ends of the second connecting rod (140) are connected with the second gear (160), and the first gear (150) arranged on the same side is meshed with the second gear (160);
the first extraction pipe (170) is communicated with the suction ends of the first double-screw pump (110) and the second double-screw pump (120) when rotating forward, and the first output pipe (180) is communicated with the output ends of the first double-screw pump (110) and the second double-screw pump (120) when rotating forward;
the first connecting rod (130) can rotate around the axis of the first connecting rod, and the first double-screw pump (110) and the second double-screw pump (120) work alternately by controlling the steering of the first connecting rod (130).
9. The injection and production packer testing device for the air energy storage well according to claim 8, wherein,
The first extraction pipe (170) is a T-shaped pipe, the inlet end of the first extraction pipe (170) is used for being communicated with external liquid storage equipment, the two outlet ends of the first extraction pipe (170) are respectively communicated with the suction ends of two double-screw pumps, and the two outlet ends of the first extraction pipe (170) are provided with first one-way valves (171);
the first output pipe (180) is arranged to be a T-shaped pipe, two inlet ends of the first output pipe (180) are respectively communicated with output ends of two double-screw pumps, an outlet end of the first output pipe (180) is communicated with the upper hydraulic hole (4) and/or the lower hydraulic hole (8), and two inlet ends of the first extraction pipe (170) are provided with second one-way valves (181).
10. The injection and production packer testing device for the air energy storage well according to claim 8, wherein,
further comprises a driving mechanism (200);
the output end of the driving mechanism (200) is connected with the first connecting rod (130) and can drive the first connecting rod (130) to rotate around the axis of the first connecting rod.
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| CN202311757858.8A CN117433916B (en) | 2023-12-20 | 2023-12-20 | Air energy storage well is with annotating and producing packer testing arrangement |
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| CN204252980U (en) * | 2014-11-05 | 2015-04-08 | 中国石油天然气股份有限公司 | A kind of separate layer water injection string |
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| CN115541208A (en) * | 2022-09-15 | 2022-12-30 | 中国石油天然气股份有限公司 | Test device and method for testing deblocking capacity of Y211 packer under condition of pressure difference between upper part and lower part |
| CN116183128A (en) * | 2021-11-26 | 2023-05-30 | 中国石油天然气集团有限公司 | Packer sealing performance testing device and testing method under cyclic operation working condition |
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2023
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| CN204252980U (en) * | 2014-11-05 | 2015-04-08 | 中国石油天然气股份有限公司 | A kind of separate layer water injection string |
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| CN116183128A (en) * | 2021-11-26 | 2023-05-30 | 中国石油天然气集团有限公司 | Packer sealing performance testing device and testing method under cyclic operation working condition |
| CN115541208A (en) * | 2022-09-15 | 2022-12-30 | 中国石油天然气股份有限公司 | Test device and method for testing deblocking capacity of Y211 packer under condition of pressure difference between upper part and lower part |
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|---|---|
| CN117433916B (en) | 2024-02-23 |
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