CN116577091A - Pressure testing device for underground testing tool of oil field - Google Patents
Pressure testing device for underground testing tool of oil field Download PDFInfo
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- CN116577091A CN116577091A CN202310844985.5A CN202310844985A CN116577091A CN 116577091 A CN116577091 A CN 116577091A CN 202310844985 A CN202310844985 A CN 202310844985A CN 116577091 A CN116577091 A CN 116577091A
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- 238000012360 testing method Methods 0.000 title claims abstract description 87
- 238000004088 simulation Methods 0.000 claims abstract description 91
- 238000002347 injection Methods 0.000 claims abstract description 49
- 239000007924 injection Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 230000014759 maintenance of location Effects 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 27
- 230000003044 adaptive effect Effects 0.000 claims description 23
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 18
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000003079 shale oil Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G01M13/003—Machine valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of petroleum exploitation tools, in particular to a pressure testing device of an oilfield downhole testing tool, which aims at the problem that the existing pressure testing equipment does not have an actual simulation operation environment when detecting accessories, so that the detection result is inaccurate. According to the pressure testing device for the underground testing tool of the oil field, disclosed by the invention, after the liquid injection of the simulation box is completed, the hydraulic pressure in the simulation box is regulated in a mode of changing the air pressure state, so that the tool to be tested can perform pressure testing in a state of simulating the actual underground environment of the oil field, the accuracy of a testing result is improved, and the problem that the actual use of the tool is influenced due to the fact that the larger error occurs between the pressure testing data of the tool to be tested and the use condition of the actual underground environment of the oil field is avoided.
Description
Technical Field
The invention relates to the technical field of petroleum exploitation tools, in particular to a pressure testing device of an oilfield downhole testing tool.
Background
An oil field refers to a specific area of crude oil production, the sum of reservoirs in the same oil-producing area under the control of single geological structure (or stratum) factors, one oil-gas field may have one or more reservoirs, and is mainly called an oil field of an oil reservoir or a gas field of a gas reservoir in the same area, and the oil-gas field is divided into a structural oil-gas field, a stratum-type oil-gas field and a compound oil-gas field according to the geological factors in the control oil-producing area.
In unconventional oil and gas reservoirs and shale oil and gas reservoirs, in order to improve single well yield, a staged fracturing technology is generally adopted, a bridge plug plugging operation matched with the staged fracturing technology is adopted, a plurality of power supply tools of the shale oil and gas reservoirs adopt electro-hydraulic setting tools, and in order to realize the technology, a motor, a high-pressure plunger pump, a stop valve, a one-way valve, an overflow valve, a reset safety valve and the like are required to be tested singly and comprehensively, so that accessories are convenient to optimize.
At present, the pressure test of the accessories is mostly carried out by adopting specific pressure test equipment, and the accessories are used underground for a long time, but the current pressure test equipment does not simulate the actual operation environment when detecting the accessories, so the detection result is inaccurate.
Disclosure of Invention
The invention discloses a pressure testing device of an oilfield downhole testing tool, which aims to solve the technical problem that the current pressure testing equipment in the background art does not simulate an actual operation environment when detecting accessories, so that the detection result is inaccurate.
The invention provides a pressure testing device of an oilfield downhole testing tool, which comprises a simulation box, wherein a water injection pipe and a gas injection pipe are arranged on the simulation box, the upper end of the water injection pipe is fixedly connected with a water inlet pipe, the upper end of the gas injection pipe is provided with a pressure regulating component, the pressure regulating component comprises an external seat and an auxiliary pressure gas cylinder, the external seat is fixedly connected with the outer side of the simulation box, the auxiliary pressure gas cylinder is fixedly connected with the external seat, a miniature air pump is arranged on the auxiliary pressure gas cylinder, the lower end of the auxiliary pressure gas cylinder is fixedly connected with a lower connecting bent pipe, the other end of the lower connecting bent pipe is fixedly connected with a two-way connector, the other end of the two-way connector is fixedly connected with a gas pipe, the other end of the gas pipe is fixedly connected with the top end of the gas injection pipe, the auxiliary pressure gas cylinder is fixedly connected with a side joint pipe, and the top end of the side joint pipe is fixedly connected with a pressure gauge.
The pressure adjusting component is arranged, and the hydraulic pressure in the simulation box is adjusted by changing the air pressure state after the liquid injection of the simulation box is completed, so that the tool to be detected can carry out pressure detection in a state simulating the actual oilfield downhole environment, the accuracy of a detection result is improved, and the problem that the actual use of the tool is influenced due to the fact that the pressure test detection data of the tool to be detected and the use state of the actual oilfield downhole environment have larger errors is avoided; the water and air are used for replacing oil and underground gas in the oil field, so that the tool can be conveniently cleaned after detection is completed.
In a preferred scheme, the inside of attaching the pressure inflator sets up to the hollow tube, attaches the inside swing joint of pressure inflator and has the end cap, and the upside fixedly connected with push rod of end cap, the top fixedly connected with briquetting of push rod, and the upside fixedly connected with first pneumatic cylinder of external seat, the output of first pneumatic cylinder and the downside fixedly connected with of briquetting.
Through being provided with and attaching pressure inflator and first pneumatic cylinder, utilize the extension of first pneumatic cylinder to change the gas column volume that attaches in the pressure inflator, reach the purpose of small scale adjustment analog box internal pressure value, promote the pressure value in the analog box the same with actual oil field underground pressure value, guarantee the accuracy of testing result.
In a preferred scheme, be provided with two symmetrical drain pipes on the simulation case, two drain pipes set up relatively with water injection pipe and gas injection pipe respectively, the equal fixedly connected with raceway of lower extreme of two drain pipes, the top fixedly connected with of simulation case keeps the roof, is provided with level sensor on the roof that keeps the roof and is close to water injection pipe and gas injection pipe, and the top of simulation case is provided with the apron, is provided with the sealing washer between apron and the simulation case.
The drain pipe is used for simulating an external drainage link of liquid in the tank, and the water pipe is connected with an external pipeline; the liquid level sensor can monitor the water level in the analog box, so that the liquid backflow of the gas injection pipe caused by excessive liquid injection is avoided; closing the simulation box: install the apron in the simulation case top and fix, the sealing washer can guarantee that the sealed effect of apron installation back simulation case is in a preferred scheme, the round hole has been seted up on the simulation case, the round hole is located between two drain pipes, the inside fixedly connected with pump valve takeover of round hole, the one end fixedly connected with external flange of pump valve takeover, external flange is located the outside of simulation case, and the other end fixedly connected with inscription flange of pump valve takeover, inscription flange is located the inside of simulation case, inscription flange comprises the flange ring of a plurality of different bore.
Through being provided with the inscription flange, the inscription flange has a plurality of different bore flange rings, and the pump valve access mouth of the instrument of waiting to detect of adaptation of being convenient for improves the application scope of device.
In a preferred scheme, two symmetrical second hydraulic cylinders are arranged outside the pump valve connecting pipe, the bottom ends of the two second hydraulic cylinders are fixedly connected with the inner wall of one side of the simulation box, and an adaptive connecting component is arranged on the pump valve connecting pipe; the adaptive connecting assembly comprises a movable ring, a front ring and two butt plates, wherein the movable ring and the front ring are both positioned outside the pump valve connecting pipe, the movable ring is close to one side of the second hydraulic cylinder, the movable ring is fixedly connected with the output ends of the two second hydraulic cylinders, the two butt plates are symmetrically distributed outside the pump valve connecting pipe, the two ends of the two butt plates are respectively and fixedly connected with the movable ring and the front ring, the movable ring, the front ring and the two butt plates are both movably connected with the outer wall of the pump valve connecting pipe, a plurality of closed rings with different calibers are arranged outside the front ring, the innermost closed ring and the plurality of closed rings are movably connected with one another, a plurality of sealing bulges which are circumferentially equidistant are fixedly connected to one sides of the front ring and the plurality of closed rings, and the plurality of sealing bulges correspond to the mounting holes of a plurality of flange rings on the internal flange; two in the equal fixedly connected with of one side of being kept away from pump valve takeover on the butt plate put the board, put one side of being close to the leading ring on the board and be provided with the pivot, swing joint between one end of pivot and the butt plate, the other end fixedly connected with traction gear of pivot, a plurality of equidistant adaptability kicking blocks of outside fixedly connected with of pivot, all include a plurality of circumference equidistant top on the adaptability kicking block, the top quantity on a plurality of adaptability kicking blocks is progressively decreased one by being close to butt plate one side and keep away from butt plate one side, and put one side fixedly connected with motor cabinet that is close to the expansion ring on the board in, fixedly connected with reverse motor on the motor cabinet, reverse motor's output is connected with the minor axis through the shaft coupling, the other end fixedly connected with driving gear of minor axis, through tooth's socket meshing between driving gear and the traction gear.
By the aid of the adaptive connecting assembly, an inner flange ring which is not connected with the inscribed flange can be plugged by the adaptive connecting assembly, so that a single-tube connection state is formed between a pump valve access port and a pump valve connecting pipe of a tool to be detected, normal operation of pressure testing equipment in the detection process is guaranteed, and the problem that the pressure testing equipment cannot test the tool to be detected due to the fact that after proper flange ring connection is selected on the inscribed flange, a flange ring mounting hole of an inner ring is not closed is avoided; the front ring is in sliding connection with the innermost sealing ring and the plurality of sealing rings, so that the dislocation plugging requirements of different flange rings on the inscribed flange are met.
In a preferred scheme, the bottom inner wall of the simulation box is provided with two symmetrical sliding seats, the inside of the simulation box is provided with a bottom table, two sides of the bottom table are fixedly connected with symmetrical side supporting seats, sliding grooves are formed in the lower sides of the two side supporting seats, the two side supporting seats are movably connected with the two sliding seats respectively, threaded holes are formed in the two side supporting seats, a supporting seat is fixedly connected with the outer side of the simulation box and is positioned between a water injection pipe and a gas injection pipe, a synchronous motor is fixedly connected with the upper side of the supporting seat, two output ends are arranged on one side, close to the simulation box, of the synchronous motor, screw rods are connected through a coupler, the other ends of the two screw rods penetrate through one side wall of the simulation box and the threaded holes of the two side supporting seats respectively to be movably connected with one side inner wall of the simulation box, and the two screw rods are movably connected with the threaded holes of the two side supporting seats.
Through being provided with base table and lead screw, base table accessible lead screw adjustment position is convenient for carry out the connection installation operation of waiting to detect the instrument.
In a preferred embodiment, the upper side of the base table is provided with a part to be tested retention assembly, and the part to be tested retention assembly is located inside the simulation box; the utility model provides a piece holder spare that awaits measuring includes lower dish and upper dish, the downside of lower dish and the upside fixed connection of bottom table, fixed connection between lower dish and the upper dish, the upside of upper dish is provided with the slipmat, two symmetrical rectangular holes have all been seted up on lower dish and the upper dish, two rectangular holes on lower dish and the upper dish are cross dislocation distribution, the inside equal swing joint in rectangular hole on lower dish and the upper dish has the interior movable rod, two interior movable rods that are located on lower dish or the upper dish are the upset symmetry, the upside of interior movable rod is all fixedly connected with retainer rod, the outside of retainer rod all is provided with the rubber sleeve, all be provided with vertical tooth's socket on the interior movable rod, vertical relative setting on two symmetrical interior movable rods, and circular mounting hole has been seted up to the inside of bottom table, the inside fixedly connected with accommodate motor of circular mounting hole, the output of accommodate motor is connected with the minor axis through the ware, the other end fixedly connected with two driving gear that distribute from top to bottom, two driving gear are respectively with two interior movable rods that shift the upper and upper dish and upper tooth's socket two tooth's socket's two vertical tooth's socket's joint through the vertical shaft coupling.
Through being provided with the piece that awaits measuring retention subassembly, the piece that awaits measuring retention subassembly is fixed from four positions of waiting to detect the instrument through four retention poles to its centre gripping, avoids its rocking to influence the testing process, and the piece that awaits measuring retention subassembly can be adjusted according to the instrument that awaits measuring in practice, satisfies the fixed operation of different instruments that await measuring.
Therefore, the pressure testing device for the underground testing tool of the oil field provided by the invention has the advantages that the hydraulic pressure in the simulation box is regulated by changing the air pressure state after the injection of the simulation box is completed, so that the tool to be tested can perform pressure testing in a state simulating the actual underground environment of the oil field, the accuracy of the testing result is improved, and the larger error between the pressure testing data of the tool to be tested and the use condition of the actual underground environment of the oil field is avoided, and the actual use of the tool is influenced.
Drawings
FIG. 1 is a schematic diagram of the whole structure of a pressure testing device of an oilfield downhole testing tool;
FIG. 2 is a schematic diagram of a simulation box structure of a pressure testing device of an oilfield downhole testing tool;
FIG. 3 is a schematic diagram of a pressure adjusting assembly of a pressure testing device of an oilfield downhole testing tool according to the present invention;
FIG. 4 is a schematic diagram of the structure of an additional air cylinder of the pressure testing device of the downhole testing tool in the oil field;
FIG. 5 is a schematic diagram of the internal structure of a simulation box of the pressure testing device of the downhole testing tool in the oil field;
FIG. 6 is a schematic diagram of a pump valve adapter of a pressure testing device of an oilfield downhole testing tool;
FIG. 7 is a schematic diagram of an adaptive connection assembly of a pressure testing device of an oilfield downhole testing tool according to the present invention;
FIG. 8 is a schematic diagram of the position structure of an abutment plate of a pressure testing device of an oilfield downhole testing tool;
FIG. 9 is a schematic diagram of the bottom structure of a simulation box of a pressure testing device of an oilfield downhole testing tool;
FIG. 10 is a schematic view of a bottom-table structure of a pressure testing device for an oilfield downhole testing tool according to the present invention;
fig. 11 is a schematic structural diagram of a retention component of a to-be-tested member of a pressure testing device of an oilfield downhole testing tool according to the present invention.
In the figure: 1. a simulation box; 2. a water injection pipe; 3. an air injection pipe; 4. a water inlet pipe; 5. a pressure regulating assembly; 501. an external seat; 502. an additional pressure inflator; 503. a micro air pump; 504. connecting an elbow; 505. a two-way connector; 506. a gas pipe; 507. a side connection pipe; 508. a pressure gauge; 6. a push rod; 7. a plug; 8. briquetting; 9. a first hydraulic cylinder; 10. a drain pipe; 11. a water pipe; 12. a retention top plate; 13. a liquid level sensor; 14. a cover plate; 15. a seal ring; 16. a pump valve connection pipe; 17. an external flange; 18. an inscription flange; 19. an adaptive connection assembly; 1901. a movable ring; 1902. a front ring; 1903. an abutting plate; 1904. a closed loop; 1905. a sealing protrusion; 1906. a middle plate; 1907. a rotating shaft; 1908. an adaptive top block; 1909. a traction gear; 1910. a motor base; 1911. a reversing motor; 1912. a drive gear; 20. a second hydraulic cylinder; 21. a slide; 22. a base table; 23. a support is attached; 24. a support seat; 25. a synchronous motor; 26. a screw rod; 27. a part to be tested retention assembly; 2701. a lower tray; 2702. an upper tray; 2703. a rod is moved inwards; 2704. a retention bar; 2705. a rubber sleeve; 2706. erecting tooth grooves; 2707. adjusting a motor; 2708. a drive gear; 2709. an anti-slip mat.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The invention discloses a pressure testing device of an oilfield downhole testing tool, which is mainly applied to a scene with inaccurate detection results.
Referring to fig. 1-4, an oilfield downhole testing tool pressure testing device comprises a simulation box 1, wherein a water injection pipe 2 and an air injection pipe 3 are arranged on the simulation box 1, the upper end of the water injection pipe 2 is connected with a water inlet pipe 4 through a bolt, the upper end of the air injection pipe 3 is provided with a pressure adjusting component 5, the pressure adjusting component 5 comprises an external seat 501 and an auxiliary air cylinder 502, the external seat 501 is connected with the outer side of the simulation box 1 through a bolt, the auxiliary air cylinder 502 is connected with the external seat 501 through a bolt, a miniature air pump 503 is arranged on the auxiliary air cylinder 502, the lower end of the auxiliary air cylinder 502 is connected with a lower bent pipe 504 through a bolt, the other end of the lower bent pipe 504 is connected with a double-pass connector 505 through a bolt, the other end of the double-pass connector 505 is connected with an air pipe 506 through a bolt, the other end of the air pipe 506 is connected with the top end of the air injection pipe 3 through a bolt, the auxiliary air cylinder 502 is connected with a side pipe 507 through a bolt, and the top end of the side pipe 507 is connected with a pressure gauge 508 through a bolt.
Specifically, the tool to be detected (a stop valve, a one-way valve, an overflow valve, a reset safety valve and a temperature pressure probe) is placed in the simulation box 1 to be fixed and connected with a pump valve inlet, then the simulation box 1 is closed to form a sealed environment, a water inlet pipe 4 (connected with an external water pipe) is used for injecting water into the simulation box 1 from a water injection pipe 2 until the required water level is reached (the tool to be detected is submerged), in the pressure adjusting assembly 5, a micro air pump 503 works to inject external air into an air attaching cylinder 502, the air enters the simulation box 1 from an air injection pipe 3 through a lower connecting elbow pipe 504, a two-way connector 505 and an air pipe 506, the liquid in the simulation box 1 is pressurized along with the continuous injection of the air, a pressure change value is observed through a pressure gauge 508, so that the hydraulic value in the simulation box 1 is synchronous with the actual oil field underground pressure value, and then the pressure test of the tool to be detected is detected after the completion; in a specific application scene, the pressure regulating component 5 is suitable for changing the hydraulic condition in the simulation box 1 in the detection process, namely, the pressure regulating component 5 regulates the hydraulic pressure in the simulation box 1 in a mode of changing the air pressure condition after the injection of the simulation box 1 is completed, so that a tool to be detected can carry out pressure detection in a state simulating the actual oilfield downhole environment, the accuracy of a detection result is improved, and the situation that the pressure test detection data of the tool to be detected and the use condition of the actual oilfield downhole environment have larger errors and the actual use of the tool is influenced is avoided; the water and air are used for replacing oil and underground gas in the oil field, so that the tool can be conveniently cleaned after detection is completed.
Referring to fig. 3 and 4, the inside of the additional pressure air cylinder 502 is provided as a hollow pipe, the inside of the additional pressure air cylinder 502 is slidably connected with a plug 7, the upper side of the plug 7 is connected with a push rod 6 through a bolt, the top end of the push rod 6 is connected with a pressing block 8 through a bolt, the upper side of the external seat 501 is connected with a first hydraulic cylinder 9 through a bolt, and the output end of the first hydraulic cylinder 9 is connected with the lower side of the pressing block 8 through a bolt.
Specifically, in the pressure adjustment process in the simulation box 1, the micro air pump 503 is suitable for large-scale adjustment, when the pressure value in the simulation box 1 approaches the actual oilfield downhole pressure, small-scale adjustment is performed by adjusting the volume of the air column in the auxiliary air cylinder 502 (the first hydraulic cylinder 9 stretches and drives the pressing block 8 to move up and down, and the pushing rod 6 pulls the plug 7 to move up and down in the hollow pipe of the auxiliary air cylinder 502, so as to change the volume of the air column in the auxiliary air cylinder 502); the expansion of the first hydraulic cylinder 9 is utilized to change the volume of the air column in the auxiliary air cylinder 502, so that the purpose of adjusting the pressure value in the simulation box 1 in a small range is achieved, the pressure value in the simulation box 1 is enabled to be the same as the actual oilfield downhole pressure value, and the accuracy of the detection result is ensured.
Referring to fig. 1, 2 and 5, two symmetrical drain pipes 10 are arranged on the simulation box 1, the two drain pipes 10 are respectively arranged opposite to the water injection pipe 2 and the gas injection pipe 3, the lower ends of the two drain pipes 10 are connected with a water pipe 11 through bolts, the top end of the simulation box 1 is connected with a retention top plate 12 through bolts, a liquid level sensor 13 is arranged on the retention top plate 12, the retention top plate 12 is close to the water injection pipe 2 and the gas injection pipe 3, a cover plate 14 is arranged above the simulation box 1, and a sealing ring 15 is arranged between the cover plate 14 and the simulation box 1.
Specifically, the drain pipe 10 is used for simulating an external drainage link of the liquid in the tank 1, and the water pipe 11 is connected with an external pipeline; the liquid level sensor 13 can monitor the water level in the analog box 1, so that the liquid backflow of the gas injection pipe 3 caused by excessive liquid injection is avoided; closing the simulation box 1: the cover plate 14 is installed above the simulation box 1 to be fixed, and the sealing ring 15 can ensure the sealing effect of the simulation box 1 after the cover plate 14 is installed.
Referring to fig. 5 and 6, a circular hole is formed in the simulation box 1, the circular hole is located between two drain pipes 10, a pump valve connecting pipe 16 is connected to the inside of the circular hole through bolts, an external flange 17 is connected to one end of the pump valve connecting pipe 16 through bolts, the external flange 17 is located outside the simulation box 1, an internal flange 18 is connected to the other end of the pump valve connecting pipe 16 through bolts, the internal flange 18 is located inside the simulation box 1, and the internal flange 18 is composed of a plurality of flange rings with different calibers.
Specifically, the process of connecting the pump valve to the inlet: the external flange 17 is connected with pressure test equipment, a pump valve access port of a tool to be detected in the simulation box 1 is connected with the internal flange 18, and a flange ring of the internal flange 18 is freely selected according to the caliber specification of a flange on the pump valve access port of the tool to be detected and is fixedly connected through bolts; the inscribed flange 18 has a plurality of flange rings of different bore, is convenient for adapt to the pump valve access mouth of different instrument that wait to detect, improves the application scope of device.
Referring to fig. 5, 6, 7 and 8, two symmetrical second hydraulic cylinders 20 are arranged outside the pump valve connecting pipe 16, the bottom ends of the two second hydraulic cylinders 20 are connected with the inner wall of one side of the simulation box 1 through bolts, and an adaptive connecting component 19 is arranged on the pump valve connecting pipe 16; the adaptive connection assembly 19 comprises a movable ring 1901, a front ring 1902 and two abutting plates 1903, wherein the movable ring 1901 and the front ring 1902 are both positioned outside the pump valve connecting pipe 16, the movable ring 1901 is close to one side of the second hydraulic cylinder 20, the movable ring 1901 is connected with the output ends of the two second hydraulic cylinders 20 through bolts, the two abutting plates 1903 are positioned outside the pump valve connecting pipe 16 and are symmetrically distributed, two ends of the two abutting plates 1903 are respectively connected with the movable ring 1901 and the front ring 1902 through bolts, the movable ring 1901, the front ring 1902 and the two abutting plates 1903 are respectively connected with the outer wall of the pump valve connecting pipe 16 in a sliding manner, a plurality of closed rings 1904 with different calibers are arranged outside the front ring 1902 and the innermost closed ring 1904, the plurality of closed rings 1904 are respectively connected with one another in a sliding manner, one side, far away from the movable ring 1901, of the front ring 1902 and the plurality of closed rings 1904 are respectively connected with a plurality of sealing bulges 5 which are equidistant in circumference through bolts, and the plurality of sealing bulges 1905 are correspondingly provided with a plurality of mounting holes of flanges 18 on the movable ring; the side, far away from the pump valve connecting pipe 16, of the two butt plates 1903 is connected with a middle plate 1906 through bolts, one side, close to the front ring 1902, of the middle plate 1906 is provided with a rotating shaft 1907, one end of the rotating shaft 1907 is connected with the butt plates 1903 through bearings in a rotating mode, the other end of the rotating shaft 1907 is connected with a pulling gear 1909 through bolts, the outer portion of the rotating shaft 1907 is connected with a plurality of equidistant adaptive jacking blocks 1908 through bolts, the adaptive jacking blocks 1908 comprise a plurality of circumferentially equidistant jacking blocks, the number of jacking blocks on the adaptive jacking blocks 1908 is gradually decreased from one side, close to the butt plates 1903, to one side, far away from the butt plates 1903, of the middle plate 1906, a motor seat 1910 is connected with a reversing motor 1911 through bolts, the output end of the reversing motor 1911 is connected with a short shaft through a coupling, the other end of the short shaft is connected with a driving gear 1912 through bolts, and the driving gear 1912 is meshed with the pulling gear 1909 through a tooth space.
Specifically, after the pump valve access opening of the tool to be detected and the internal flange 18 are fixed, the position of the adaptive top block 1908 is adjusted according to the flange ring connected to the internal flange 18, the reversing motor 1911 drives the driving gear 1912 to engage the traction gear 1909, the rotating shaft 1907 rotates to enable the adaptive top block 1908 to turn over until the top of the adaptive top block 1908 corresponds to the connected flange ring, namely, all corresponding sealing rings from the connected flange ring to the inner side are limited, then the first hydraulic cylinder 9 is started to extend and push the movable ring 1901, the front ring 1902 and the sealing ring move towards the internal flange 18, the sealing protrusion 1905 is inserted into the unconnected inner flange ring on the internal flange 18, and the pump valve connecting pipe 16 and the pump valve access opening of the tool to be detected are connected; in a specific application scene, the adaptive connection assembly 19 is suitable for a pump valve access port connection sealing link of a tool to be detected, namely, the adaptive connection assembly 19 can plug an unconnected inner flange ring on the inscribed flange 18, so that a single-tube connection state is formed between the pump valve access port of the tool to be detected and a pump valve connecting pipe, normal operation of pressure testing equipment in the detection process is ensured, and the problem that the pressure testing equipment cannot test the tool to be detected due to unsealed flange ring mounting holes of an inner ring after proper flange ring connection is selected on the inscribed flange 18 is avoided; the front ring 1902 is slidably connected to the innermost sealing ring 1904 and the plurality of sealing rings 1904 to meet the staggered sealing requirements for different flange rings on the internal flange 18.
Referring to fig. 5, 9 and 10, the bottom inner wall of the simulation box 1 is provided with two symmetrical sliding seats 21, the inside of the simulation box 1 is provided with a bottom table 22, two sides of the bottom table 22 are connected with symmetrical side supporting seats 23 through bolts, sliding grooves are formed in the lower sides of the two side supporting seats 23, the two side supporting seats 23 are respectively connected with the two sliding seats 21 in a sliding mode, threaded holes are formed in the two side supporting seats 23, the outer side of the simulation box 1 is connected with a supporting seat 24 through bolts, the supporting seat 24 is located between the water injection pipe 2 and the gas injection pipe 3, the upper side of the supporting seat 24 is connected with a synchronous motor 25 through bolts, two output ends are connected with lead screws 26 through couplings, the other ends of the two lead screws 26 respectively penetrate through one side wall of the simulation box 1 and one side inner wall of the two side supporting seats 23 to be connected with the inner wall of the simulation box 1 through bearings in a rotating mode, and the two lead screws 26 are connected with the threaded holes of the two side supporting seats 23 through inner wall threads in a rotating mode.
Specifically, after the tool to be detected is fixed, the synchronous motor 25 is started according to the actual position, and the two lead screws 26 rotate to drive the bottom table 22 to transversely move, so that the pump valve access port of the tool to be detected is attached to the internal flange 18; the position of the base table 22 can be adjusted by a screw 26, so that the connection and installation operation of the tool to be detected can be facilitated.
Referring to FIGS. 9, 10 and 11, the upper side of the base table 22 is provided with a part to be measured retention assembly 27, and the part to be measured retention assembly 27 is located inside the simulation box 1; the to-be-measured piece retention assembly 27 comprises a lower disc 2701 and an upper disc 2702, wherein the lower side of the lower disc 2701 is connected with the upper side of a base table 22 through bolts, the lower disc 2701 is connected with the upper disc 2702 through bolts, an anti-slip pad 2709 is arranged on the upper side of the upper disc 2702, two symmetrical rectangular holes are formed in the lower disc 2701 and the upper disc 2702, the two rectangular holes in the lower disc 2701 and the upper disc 2702 are distributed in a staggered manner, inner shifting rods 2703 are slidably connected in the rectangular holes in the lower disc 2701 and the upper disc 2702, the two inner shifting rods 2703 on the lower disc 2701 or the upper disc 2702 are in overturning symmetry, the upper sides of the inner shifting rods 2703 are connected with a retention rod 2704 through bolts, rubber sleeves 2705 are arranged on the outer sides of the retention rod 2704, two symmetrical inner shifting rods 2706 are oppositely arranged, motor tooth grooves 2706 are formed in the inner shifting rods 2701 and are arranged in the inner shifting rods 2702 in a staggered manner, two inner shifting rods 2706 are connected with the inner shifting rods 2708 through two inner shifting shafts 2708, and the two inner shifting rods 2706 are connected with the other end of the inner shifting rods 2708 through the inner shifting rods 2702.
Specifically, the tool to be detected is placed on the upper tray 2702, the adjusting motor 2707 is started to drive the driving gear 2708 to rotate, the driving gear 2708 is meshed with the vertical tooth groove 2706 on the inner shift rod 2703, the two inner shift rods 2703 on the upper tray 2702 or the lower tray 2701 are moved in a staggered manner, namely the retaining rods 2704 on the two inner shift rods 2703 are mutually closed, and the tool to be detected is clamped and retained by the four retaining rods 2704; in a specific application scenario, the to-be-detected piece retention component 27 is suitable for a fixing link of a to-be-detected tool, namely, the to-be-detected piece retention component 27 clamps and fixes the to-be-detected piece retention component from four positions of the to-be-detected tool through four retention rods 2704, so that the detection process is prevented from being influenced by shaking, the to-be-detected piece retention component 27 can be adjusted according to the actual to-be-detected tool, and the fixing operation of different to-be-detected tools is met.
Working principle: when the device is used, a tool to be detected (a stop valve, a one-way valve, an overflow valve, a reset safety valve and a temperature pressure probe) is placed in the simulation box 1 to be fixed (the tool to be detected is placed on the upper disc 2702, an adjusting motor 2707 is started to drive a driving gear 2708 to rotate, the driving gear 2708 is meshed with a vertical tooth groove 2706 on an inner moving rod 2703, two inner moving rods 2703 on the upper disc 2702 or the lower disc 2701 are moved in a staggered manner, namely, the retention rods 2704 on the two inner moving rods 2703 are mutually closed, the tool to be detected is clamped by four retention rods 2704) and is connected with a pump valve access port (a synchronous motor 25 is started according to the actual position, two lead screws 26 are rotated to drive a bottom table 22 to transversely move according to the actual position, so that the pump valve access port of the tool to be detected is attached to an inner moving flange 18, and a flange ring of the inner moving flange 18 is freely selected according to the caliber specification of the upper flange of the tool to be detected, after the fixing is completed, the position of an adaptive top block 1908 is adjusted according to the flange ring 1901 connected on the inner moving rod 2702 or the lower disc 2701, namely, the reversing motor 1911 drives the gear ring to be meshed with the inner moving flange 1909 and the inner moving flange 1909 is connected with the inner flange 1909, and the corresponding to the inner moving flange 1909 is connected with the inner flange, the inner flange 1909 is opened, and the inner ring is connected with the inner flange and the inner flange is connected with the inner flange 18, and the inner flange is opened, and the corresponding to the inner flange is connected with the inner flange and the flange ring and the inner flange is connected with the flange ring and the upper flange and the flange is correspondingly connected with the flange ring and the flange 18; then the simulation box 1 is closed to form a sealed environment (the cover plate 14 is installed above the simulation box 1 to be fixed), the water inlet pipe 4 (connected with an external water pipe) is used for injecting water into the simulation box 1 from the water injection pipe 2 until the water level reaches a required water level (a tool to be detected is submerged), the miniature air pump 503 is used for injecting external air into the auxiliary air cylinder 502 in the pressure adjusting assembly 5, the air passes through the lower connecting elbow 504, the two-way connector 505 and the air pipe 506, the air enters the simulation box 1 from the air injection pipe 3, the liquid in the simulation box 1 is pressurized along with continuous injection of the air, the pressure change value is observed through the pressure gauge 508, the hydraulic pressure value in the simulation box 1 is synchronous with the actual oil field underground pressure value, in the process, the miniature air pump 503 is suitable for large-scale adjustment, when the pressure value in the simulation box 1 is close to the actual oil field underground pressure, the small-scale adjustment is carried out by adjusting the volume of the air column in the auxiliary air cylinder 502 (the first hydraulic cylinder 9 stretches and drives the pressing block 8 to move up and down, the push rod 6 moves up and down in the middle air pipe of the auxiliary air cylinder 502, the volume is changed), the volume of the air column to be detected is connected with the flange plug 17 after the detection tool to be detected, and the pressure test equipment is connected with the flange test equipment is connected.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides an oil field test tool pressure testing device in pit, includes simulation case (1), a serial communication port, be provided with water injection pipe (2) and gas injection pipe (3) on simulation case (1), the upper end fixedly connected with inlet tube (4) of water injection pipe (2), and the upper end of gas injection pipe (3) is provided with pressure adjusting component (5), pressure adjusting component (5) include external seat (501) and attach gas cylinder (502), and the outside fixed connection of external seat (501) and simulation case (1), attach and press fixed connection between gas cylinder (502) and external seat (501), attach and be provided with miniature air pump (503) on pressing gas cylinder (502), and attach lower end fixedly connected with down of gas cylinder (502) connect return bend (504), connect the other end fixedly connected with two-way connector (505) of return bend (504), and the other end and gas injection pipe (3) top fixed connection of two-way connector (505), attach on pressing gas cylinder (502) fixedly connected with top side joint (507) and gas-supply pipe (508).
2. The pressure testing device of the downhole testing tool for the oil field according to claim 1, wherein the inside of the auxiliary pressure air cylinder (502) is provided with a hollow pipe, the inside of the auxiliary pressure air cylinder (502) is movably connected with a plug (7), the upper side of the plug (7) is fixedly connected with a push rod (6), the top end of the push rod (6) is fixedly connected with a pressing block (8), the upper side of the external seat (501) is fixedly connected with a first hydraulic cylinder (9), and the output end of the first hydraulic cylinder (9) is fixedly connected with the lower side of the pressing block (8).
3. The pressure testing device of the oil field underground testing tool according to claim 1, wherein two symmetrical drain pipes (10) are arranged on the simulation box (1), the two drain pipes (10) are respectively arranged opposite to the water injection pipe (2) and the gas injection pipe (3), the lower ends of the two drain pipes (10) are fixedly connected with a water pipe (11), the top end of the simulation box (1) is fixedly connected with a retention top plate (12), a liquid level sensor (13) is arranged on the retention top plate (12), the retention top plate (12) is close to the water injection pipe (2) and the gas injection pipe (3), a cover plate (14) is arranged above the simulation box (1), and a sealing ring (15) is arranged between the cover plate (14) and the simulation box (1).
4. The pressure testing device of the oil field underground testing tool according to claim 3, wherein a round hole is formed in the simulation box (1), the round hole is located between two drain pipes (10), a pump valve connecting pipe (16) is fixedly connected to the inside of the round hole, an external flange (17) is fixedly connected to one end of the pump valve connecting pipe (16), the external flange (17) is located outside the simulation box (1), an internal flange (18) is fixedly connected to the other end of the pump valve connecting pipe (16), the internal flange (18) is located inside the simulation box (1), and the internal flange (18) is composed of a plurality of flange rings with different calibers.
5. The pressure testing device of the oil field underground testing tool according to claim 4, wherein two symmetrical second hydraulic cylinders (20) are arranged outside the pump valve connecting pipe (16), the bottom ends of the two second hydraulic cylinders (20) are fixedly connected with the inner wall of one side of the simulation box (1), and an adaptive connecting assembly (19) is arranged on the pump valve connecting pipe (16).
6. The downhole testing tool pressure testing device for oil fields according to claim 5, wherein the adaptive connecting assembly (19) comprises a movable ring (1901), a front ring (1902) and two butt plates (1903), the movable ring (1901) and the front ring (1902) are both located outside the pump valve connecting pipe (16), the movable ring (1901) is close to one side of the second hydraulic cylinder (20), the movable ring (1901) is fixedly connected with the output ends of the two second hydraulic cylinders (20), the two butt plates (1903) are located outside the pump valve connecting pipe (16) and are symmetrically distributed, two ends of the two butt plates (1903) are fixedly connected with the movable ring (1901) and the front ring (1902), the movable ring (1901), the front ring (1902) and the two butt plates (1902) are both movably connected with the outer wall of the pump valve connecting pipe (16), a plurality of sealing rings (4) with different calibers are arranged on the outer side of the front ring (1902), the front ring (1901) and the sealing rings (1904) are both located at the outer sides of the sealing ring (16), the sealing rings (1905) are correspondingly connected with the sealing rings (1905) at equal distances, and the sealing rings (1905) are respectively located on the sealing rings (1905).
7. The downhole testing tool pressure testing device for oil fields of claim 6, wherein two of the butt plates (1903) are fixedly connected with a middle plate (1906) on one side far away from a pump valve connecting pipe (16), a rotating shaft (1907) is arranged on one side, close to a front ring (1902), of the middle plate (1906), one end of the rotating shaft (1907) is movably connected with the butt plate (1903), the other end of the rotating shaft (1907) is fixedly connected with a traction gear (1909), a plurality of equidistant adaptive jacking blocks (1908) are fixedly connected with the outside of the rotating shaft (1907), the adaptive jacking blocks (1908) comprise a plurality of circumferential equidistant jacking heads, the number of the jacking heads on the adaptive jacking blocks (1908) decreases one by one from one on one side, close to the traction ring (1901) on the middle plate (1906), to one side, of the middle plate (1901) is fixedly connected with a seat (1910), the motor seat (1911) is fixedly connected with a reversing motor, the other end of the reversing motor seat (1911) is fixedly connected with a reversing motor gear (1912), and the output end of the reversing motor seat (1911) is fixedly connected with a driving shaft (1912) through a driving gear (1912) and meshed with a short shaft (1912).
8. The pressure testing device of the oil field underground testing tool according to claim 1, wherein two symmetrical sliding seats (21) are arranged on the inner wall of the bottom of the simulation box (1), a base table (22) is arranged in the simulation box (1), two symmetrical side supporting seats (23) are fixedly connected to two sides of the base table (22), sliding grooves are formed in the lower sides of the two side supporting seats (23), the two side supporting seats (23) are movably connected with the two sliding seats (21) respectively, threaded holes are formed in the two side supporting seats (23), a supporting seat (24) is fixedly connected to the outer side of the simulation box (1), the supporting seat (24) is located between a water injection pipe (2) and a gas injection pipe (3), a synchronous motor (25) is fixedly connected to the upper side of the supporting seat (24), two output ends are arranged on one side of the synchronous motor (25) close to the simulation box (1), screw rods (26) are connected through shaft couplings, and the other ends of the two side supporting seats (23) penetrate through one side box wall of the simulation box (1) and the two side supporting seats (23) respectively, and are movably connected with the screw rods (23) on one side of the two side supporting seats (23).
9. An oilfield downhole testing tool pressure test device according to claim 8, wherein the upper side of the base table (22) is provided with a part to be tested retention assembly (27), and the part to be tested retention assembly (27) is located inside the simulation box (1).
10. The pressure testing device for the downhole testing tool for oil fields according to claim 9, wherein the retention assembly (27) for the to-be-tested part comprises a lower disc (2701) and an upper disc (2702), wherein the lower side of the lower disc (2701) is fixedly connected with the upper side of the bottom table (22), the lower disc (2701) is fixedly connected with the upper disc (2702), an anti-slip pad (2709) is arranged on the upper side of the upper disc (2702), two symmetrical rectangular holes are formed in the lower disc (2701) and the upper disc (2702), the two rectangular holes in the lower disc (2701) and the upper disc (2702) are staggered, inner parts of the rectangular holes in the lower disc (2701) and the upper disc (2702) are movably connected with inner moving rods (2703), the two inner moving rods (2703) positioned on the lower disc (2701) or the upper disc (2702) are in a turnover symmetry mode, the upper side of the upper disc (2702) is fixedly connected with an anti-slip pad (2709), the two symmetrical rectangular holes are formed in the lower disc (2701) and the upper disc (2702), two inner sides of the upper disc (2702) are fixedly connected with the inner connecting rods (2706) are fixedly connected with the inner connecting shafts (2706), the two inner connecting shafts (2706) are fixedly connected with the inner connecting shafts (2706) of the two inner connecting shafts (2706) and the two inner connecting shafts (2706) are fixedly connected with the inner connecting shafts (6), the other end of the short shaft is fixedly connected with two driving gears (2708) which are distributed up and down, and the two driving gears (2708) are respectively meshed with vertical tooth grooves (2706) of two inner shift rods (2703) on the lower tray (2701) and the upper tray (2702) through tooth grooves.
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| CN202310844985.5A CN116577091B (en) | 2023-07-11 | 2023-07-11 | Pressure testing device for underground testing tool of oil field |
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| CN202310844985.5A CN116577091B (en) | 2023-07-11 | 2023-07-11 | Pressure testing device for underground testing tool of oil field |
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Cited By (1)
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| CN117213992A (en) * | 2023-11-08 | 2023-12-12 | 宝鸡力兴压力容器装备有限公司 | Pressure testing device of pressure vessel |
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| CN116577091B (en) | 2023-10-20 |
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