CN117007298B - Integrated detection test device and detection method for drill bit and rotary blowout preventer - Google Patents
Integrated detection test device and detection method for drill bit and rotary blowout preventer Download PDFInfo
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- CN117007298B CN117007298B CN202310947233.1A CN202310947233A CN117007298B CN 117007298 B CN117007298 B CN 117007298B CN 202310947233 A CN202310947233 A CN 202310947233A CN 117007298 B CN117007298 B CN 117007298B
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- 238000012360 testing method Methods 0.000 title claims abstract description 209
- 238000001514 detection method Methods 0.000 title claims abstract description 71
- 210000000078 claw Anatomy 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000012544 monitoring process Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 17
- 238000005553 drilling Methods 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003466 welding 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a drill bit and rotary blowout preventer integrated detection test device and a detection method thereof, wherein the test device comprises a support frame, a rotary shaft is arranged on the support frame, and the upper end of the rotary shaft is connected with a piston rod of a first hydraulic cylinder fixed on the support frame; the rotating shaft is connected with the driving device through a turntable sleeved outside the rotating shaft. A pit sinking on the fixing plane of the support frame is arranged below the support frame; the pit body is internally provided with an L-shaped track and a transport vehicle which is in sliding connection with the track and is used for transporting the rotary blowout preventer or the drill bit test bed to a test position. The lower extreme of rotation axis can be connected with clamping device, and clamping device can be used to promote the drill bit test bench. According to the invention, the test device for integrated detection of the drill bit and the rotary blowout preventer with perfect functions is developed for the first time, the drill bit detection test and the rotary blowout preventer detection test share a set of large-scale test equipment such as a hydraulic station, a support frame, a rotating shaft, a driving device, a control console and the like, and the test space and the test cost are remarkably saved.
Description
Technical Field
The invention relates to the technical field of drilling equipment detection test devices, in particular to a drill bit and rotary blowout preventer integrated detection test device and a detection method thereof.
Background
In petroleum drilling operations, the drill bit is a rock breaking tool in the drilling process, and the quality of the drill bit directly influences the drilling speed, thereby influencing the drilling cost. At present, as the depth of the petroleum exploration and development well is continuously deepened, stratum rock to be drilled by a drill bit is more and more complex, the types of the used drill bit are more and more various, and the quality inspection of the drill bit is more important.
The rotary blowout preventer is a key device for successfully implementing underbalanced drilling, and has the main function of continuously keeping normal drilling or tripping under pressure under the condition of a certain casing pressure at a wellhead, and serious safety accidents occur once the quality of the rotary blowout preventer is not too close, so that the rotary blowout preventer must be inspected strictly according to relevant detection standards before the rotary blowout preventer is used on site, and the safety of drilling operation can be ensured.
In order to ensure normal drilling operation, a drill bit detection test and a rotary blowout preventer detection test are required to be carried out before the operation, and the quality of the drill bit and the quality of the rotary blowout preventer are ensured to be qualified, but in the actual detection test, two sets of detection equipment are required to be respectively purchased for detecting the drill bit and the rotary blowout preventer, and the detection equipment is high in price, increases the test cost, has a huge equipment system and occupies a large test space.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device and a method for detecting and testing the integration of a drill bit and a rotary blowout preventer, which solve the problems of high test cost and large occupied space caused by the fact that two sets of large-scale equipment are required to be purchased respectively in the detection test of the drill bit and the rotary blowout preventer in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, a device for testing the integration of a drill bit and a rotary blowout preventer is provided, which comprises a support frame, wherein a rotary shaft is arranged on the support frame, and the upper end of the rotary shaft is connected with a first hydraulic cylinder fixed on the support frame; the rotating shaft is connected with the driving device through a rotating disc sleeved outside the rotating shaft; a pit sinking on the fixing plane of the support frame is arranged below the support frame; an L-shaped track and a transport vehicle which is in sliding connection with the track are arranged in the pit body, the transport vehicle is connected with a piston rod of a third hydraulic cylinder when reaching a preset position, and the first hydraulic cylinder and the third hydraulic cylinder are connected with a hydraulic station;
the tail end of the track right below the support frame is provided with a fixed base for fixing the drill bit test bed; the drill bit test bed comprises a sample platform, wherein a sample groove for placing a sample is formed in the sample platform, and a through hole penetrating through the sample platform is formed in the bottom of the sample groove; the bottom of the sample platform is fixedly provided with a platform supporting seat, and the platform supporting seat is connected with the fixed base in a detection state; a cavity for accommodating the clamping device is formed in the platform supporting seat; the sample platform is movably connected with a compressing device for compressing the sample;
when the drill bit test bed is lifted, the lower end of the rotating shaft is connected with a clamping device through a rotating shaft joint; when the drill bit is detected, the lower end of the rotating shaft is connected with the drill bit; when the rotary blowout preventer is detected, the lower end of the rotary shaft is connected with the test drill rod; the clamping device comprises a rod piece, a claw and a driving mechanism with the claw which is folded and unfolded relative to the rod piece, and the rotating shaft is connected with the rod piece through a rotating shaft joint;
one side of the hydraulic station is provided with a control console and a pressure testing pump for pressurizing during test; the hydraulic station, the driving device and the pressure testing pump are all electrically connected with the control console.
The beneficial effects of the invention are as follows: according to the invention, the test device for integrated detection of the drill bit and the rotary blowout preventer with perfect functions is developed for the first time, the drill bit detection test and the rotary blowout preventer detection test share a set of large-scale test equipment such as a hydraulic station, a support frame, a rotating shaft, a driving device, a control console and the like, and the test space and the test cost are remarkably saved.
The pit body is arranged, so that the overall height of the supporting frame can be reduced, and the stability and safety of the test device are improved. Both the drill test stand and the rotary blowout preventer are large and heavy, and manual switching equipment is inconvenient to use, so that auxiliary switching devices such as rails, transport vehicles, clamping devices and the like are required to be added. The track, the transport vehicle and the third hydraulic cylinder facilitate the transportation of the drill bit test bed or the rotary blowout preventer; the track is arranged to be L-shaped, so that when the rotary blowout preventer detection test is carried out, the rotary blowout preventer is required to be lifted into the pit body by the crane, the drill bit test stand does not need to be frequently lifted by the crane, and the drill bit test stand can be always fixed on the transport vehicle and placed at one end of the L-shaped track far away from the fixed base, so that the transport of the rotary blowout preventer during the rotary blowout preventer detection test is not influenced, and meanwhile, the preparation work of the drill bit detection test is simplified. The clamping device can extend into the through hole of the drill bit test bed and lift the drill bit test bed by utilizing the first hydraulic cylinder so as to fixedly mount the drill bit test bed on the fixed base for starting a test.
The driving device can drive the rotating shaft to do rotary motion, the first hydraulic cylinder can control the lifting of the rotating shaft, and the test drill rod or the drill bit can do lifting motion while doing rotary motion during detection.
Further, a water accumulation pool sinking on the bottom surface of the pit body is arranged in the pit body, the water accumulation pool is connected with the water storage pool through a pump and a pipeline, and the pump is electrically connected with the control console. The axial center of the rotating shaft is provided with a water through hole penetrating through the whole rotating shaft, and the center of the first hydraulic cylinder is provided with a water through hole; the water through hole is connected with the water storage tank through a pipeline, a pump and a cooling joint; the pump is electrically connected with the control console; the drill bit test bed is provided with a ball valve, one end of the ball valve is communicated with the through hole, and the other end of the ball valve is communicated with the water accumulation pool.
The beneficial effects of the technical scheme are as follows: considering the cooling liquid of drill bit performance detection test and the drainage problem of flushing iron fillings liquid, set up the ponding in the hole body when designing, the water in ponding can be discharged to the tank and recycle. And the pump is started to feed cooling water into the water feed hole, so that the drill bit can be cooled and the broken iron scraps can be conveniently washed when the drill bit detection test is carried out, and the used cooling water is discharged to the water accumulation tank through the ball valve.
Further, the driving device comprises a coupler, a motor and a driver which are sequentially connected, and the coupler is connected with the turntable. The rotation of the rotating shaft is realized by driving the driving device, and the turntable can convert the horizontal rotating motion of the motor into the vertical rotating motion of the rotating shaft.
Further, the turntable comprises a turntable base and a turntable core, a supporting seat for supporting the first hydraulic cylinder is arranged on the turntable base, the center of the turntable base is connected with the turntable core through a bearing, and a spline groove matched with a spline shaft of the rotating shaft is formed in the inner wall of the turntable core; the rotary disc core is sleeved with a circle of conical fluted disc, the conical fluted disc is perpendicular to the conical gear and meshed with the conical gear, and the shaft of the conical gear is fixed on the supporting seat through a bearing and is connected with the coupler.
The beneficial effects of the technical scheme are as follows: the driving device drives the bevel gear to rotate, and the bevel gear drives the bevel fluted disc to rotate and drives the rotary table core supplementing to rotate, so that the rotary shaft is driven to rotate. The conical gear and the conical fluted disc which are perpendicular to each other can convert the horizontal rotation motion of the motor into the vertical rotation motion of the rotating shaft. The supporting seat can better fixed support the first hydraulic cylinder and can also fix the bevel gear.
Further, a second hydraulic cylinder is arranged on the supporting frame, the test drill rod is connected with a piston rod of the second hydraulic cylinder in a non-detection state, and the second hydraulic cylinder is connected with the hydraulic station. In the test preparation stage, the second hydraulic cylinder is used for pressing the test drill rod into the rotary blowout preventer, so that the test drill rod is fixedly connected with the rotary blowout preventer.
Further, the claw comprises a rotating arm, one end of the rotating arm is hinged with a clamp base, and the other end of the rotating arm is hinged with a claw head; the inner side of the claw head is provided with anti-skid patterns, and the outer side of the claw head is provided with a flexible pad; the bottom of the through hole is provided with a circle of anti-slip table for clamping the claw. The driving mechanism comprises a driving motor and a lead screw connected with the tail end of the rod piece through a bearing, and the lead screw is not contacted with the rod piece. The screw rod is connected with the clamp base through a bearing, and one end of the screw rod penetrating through the clamp base is connected with a driving motor fixed on the clamp base; the screw rod is connected with a sliding block in a sliding way, and the rotating arm is hinged with the sliding block through a limiting connecting arm.
The beneficial effects of the technical scheme are as follows: the claw of the clamping device can extend into the through hole when in a furled state, the first hydraulic cylinder is started to drive the clamping device to move downwards, after the claw extends out of the through hole, the claw is controlled to open and clamp the anti-sliding table of the through hole, the first hydraulic cylinder is started again to enable the claw to move upwards, and the claw drives the whole drill bit test bench to move upwards together. The inner side of the claw head is contacted with the anti-skid platform, the anti-skid patterns on the claw head can increase static friction force, and the flexible pad is arranged on the outer side of the claw head to prevent the claw head from colliding with the wall of the through hole.
Further, the bottoms of the platform supporting seat and the rotary blowout preventer are respectively provided with a circle of counter bores with the same positions and sizes; the carrier vehicle is provided with a circle of connecting pieces matched with the platform supporting seat and the bottom counter bore of the rotary blowout preventer. The connecting piece can be inserted into the counter bore, so that the transport vehicle is prevented from generating relative movement with the drill bit test stand or the rotary blowout preventer during transportation.
Further, the compressing device comprises a threaded rod and a locking nut, one end of the threaded rod extending into the sample platform is fixed with a pressing plate, and a sample placed on the test platform can be compressed.
Further, the test device is provided with vortex sensors for monitoring the rotation speeds of the drill bit and the cone, torque sensors for monitoring the torque of the driving device, displacement sensors for monitoring the displacement conditions of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder, pressure sensors for monitoring the drill bit pressure during the drill bit detection test, temperature sensors for monitoring the temperature of the shell of the rotary blowout preventer, pressure transmissions for monitoring the piston pressures of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder and a plurality of monitoring cameras for observing the operation conditions of equipment; the vortex sensor is connected with the data acquisition card; the torque sensor, the displacement sensor, the temperature sensor, the pressure sensor and the pressure transmission are all connected with the data acquisition card; the data acquisition card, the data acquisition card and the camera are electrically connected with the console; the control console is provided with a plurality of control buttons and a display screen for displaying parameter change curves and monitoring videos in real time.
The beneficial effects of the technical scheme are as follows: the measurement of dynamic parameters such as bit pressure, torque, bit rotating speed, cone rotating speed, moving displacement of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder, piston pressure of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder, the temperature of the shell of the rotary blowout preventer and the like in the process of the rotary blowout preventer performance detection test and the drill bit performance detection test are realized by taking an electrical measurement mode and different types of sensors as conversion elements.
In a second aspect, the present invention also provides a method of drill bit detection testing comprising the steps of:
s1, fixing a drill bit test bed on a transport vehicle, wherein the initial position of the drill bit test bed is positioned at one end of an L-shaped track far away from a fixed base; placing the sample into a sample platform, and compacting the sample by adopting a compacting device;
s2, moving the transport vehicle and a drill bit test bed on the transport vehicle from a starting position to an inflection point of the L-shaped track, and connecting the transport vehicle with a piston rod of a third hydraulic cylinder; starting a third hydraulic cylinder to push the transport vehicle to the position right above the fixed base, and connecting the lower end of the rotating shaft with the clamping device;
s3, starting a first hydraulic cylinder to drive the clamping device to vertically move downwards, and starting a driving mechanism of the clamping device to enable the claw to extend into a through hole of the drill bit test bed after being folded;
s4, after all the claw tools extend into the through holes, starting a driving motor of the clamping device to enable the claw tools to open and clamp the anti-skid platform at the bottoms of the through holes, and then controlling the clamping device to move upwards by a first hydraulic cylinder to lift the drill bit test platform;
s5, removing the transport vehicle, and putting down the drill bit test bed to be connected and fixed with the fixed base;
s6, disassembling the clamping device, connecting the lower end of the rotating shaft with a drill bit, and performing a drill bit detection test;
and S7, disassembling the drill bit after the test is completed, replacing the clamping device, lifting the drill bit test bed and placing the drill bit test bed on the transport vehicle, and pulling the transport vehicle back to the inflection point by the third hydraulic cylinder to retract the transport vehicle and the drill bit test bed on the transport vehicle to the initial position.
Drawings
FIG. 1 is a schematic diagram of a rotary blowout preventer test rig;
FIG. 2 is a mechanical system diagram of a bit detection test;
FIG. 3 is a schematic view of the structure of a track in a pit;
FIG. 4 is a diagram of a data acquisition system;
FIG. 5 is a cross-sectional view of a drill bit testing platform;
FIG. 6 is a top view of a drill bit testing platform;
FIG. 7 is a schematic illustration of a carriage moving along an orbit;
FIG. 8 is a schematic view of a clamping device;
fig. 9 is a schematic structural view of the turntable.
Wherein: 1. a support frame; 101. a support base; 2. a rotation shaft; 202. a turntable; 2021. a bevel gear; 2022. conical fluted disc; 2023. repairing the core of the turntable; 2024. a turntable base; 203. a rotation shaft joint; 3. a hydraulic station; 301. a first hydraulic cylinder; 302. a second hydraulic cylinder; 303. a third hydraulic cylinder; 4. rotating the blowout preventer; 5. a drill bit test bed; 501. a compacting device; 502. a ball valve; 503. a platform support; 504. a sample platform; 505. a through hole; 6. a driving device; 601. a coupling; 7. testing a drill rod; 8. a drill bit; 901. a water accumulation pool; 902. a water storage tank; 10. cooling the joint; 11. a transport vehicle; 12. a fixed base; 13. a clamping device; 1301. a claw; 1302. a rod piece; 1303. a rotating arm; 1304. a clamp base; 1305. a claw head; 1306. a slide block; 1307. and limiting the connecting arm.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
Referring to fig. 1 and 2, the integrated testing device and method for detecting the drill bit and the rotary blowout preventer in the scheme comprises a support frame 1, wherein a rotary shaft 2 is arranged on the support frame 1, and the upper end of the rotary shaft 2 is connected with a piston rod of a first hydraulic cylinder 301 fixed on the support frame 1; the rotating shaft 2 is connected with the driving device 6 through a turntable 202 sleeved outside the rotating shaft 2. A hydraulic station 3 is arranged on one side of the support frame 1, a control console and a pressure testing pump for pressurizing during test are arranged on one side of the hydraulic station 3, and when a rotary blowout preventer detection test is performed, the rotary blowout preventer 4 can be pressurized through the pressure testing pump to simulate the working condition with pressure; the hydraulic station 3, the driving device 6 and the pressure testing pump are all electrically connected with the control console. In order to reduce the vibration effects during the drill bit test, it is preferable to use an accumulator in the hydraulic station 3, which can provide a momentary high flow of hydraulic oil, in order to achieve a rapid automatic loading and to reduce the vibration effects during the test.
Specifically, the driving device 6 includes a coupling 601, a motor, and a driver, which are sequentially connected to the turntable 202. The coupling 601 is preferably a drum coupling and the motor and drive are preferably a dc motor and a dc drive. The drill bit detection test needs to continuously work for 40 hours, and meanwhile, the test needs to realize stepless speed regulation and forward and reverse rotation, so that a direct current driver drives a direct current motor and a turntable 202 to realize the rotation motion of the rotating shaft 2.
Referring to fig. 9, the turntable 202 includes a turntable base 2024 and a turntable compensating core 2023, a supporting base 101 for supporting the first hydraulic cylinder 301 is mounted on the turntable base 2024, the center of the turntable base 2024 is connected with the turntable compensating core 2023 through a bearing, a spline groove matched with a spline shaft of the rotating shaft 2 is formed in the inner wall of the turntable compensating core 2023, so that the turntable 202 can drive the rotating shaft 2 to rotate, a circle of conical fluted disc 2022 is sleeved outside the turntable compensating core 2023, the conical fluted disc 2022 is perpendicular to and meshed with the conical gear 2021, and the shaft of the conical gear 2021 is fixed on the supporting base 101 through the bearing and passes through the supporting base 101 to be connected with the coupler 601. The direct current driver drives the direct current motor to rotate, after passing through the coupler 601, the conical gear 2021 is driven to rotate, the conical gear 2021 drives the conical fluted disc 2022 to rotate, so that the horizontal rotary motion of the motor is converted into vertical rotary motion, then the conical fluted disc 2022 drives the rotary disc core supplementing 2023 to drive the rotary shaft 2, and the rotary shaft 2 drives the test drill rod 7 or the drill bit 8 to rotate, so that the rotary motion required by the performance test of the rotary blowout preventer 4 or the drill bit 8 is realized. The driving device 6 can drive the rotating shaft 2 to do rotary motion, the first hydraulic cylinder 301 can control the lifting of the rotating shaft 2, spline shafts on the rotating shaft 2 and spline grooves on the inner wall of the rotary table bushing 2023 are long enough, the spline shafts cannot be separated from the spline grooves at the limiting position of the lifting of the rotating shaft 2, and the test drill rod 7 or the drill bit 8 can do rotary motion and lifting motion during detection.
In practice, it is preferable to provide a bearing at the connection position between the rotary shaft 2 and the piston rod of the first hydraulic cylinder 301, so that the rotary motion of the rotary table 202 driving the rotary shaft 2 is not transmitted to the piston rod of the first hydraulic cylinder 301, and the piston rod is connected upward by a transparent cover, and the lower end of the transparent cover is connected to a bearing housing. The tapered roller bearing is arranged in the bearing sleeve, the outer ring of the bearing is in interference fit with the bearing sleeve, the bearing is static and does not rotate, and the inner ring of the bearing rotates together with the rotating shaft 2.
Referring to fig. 3 and 7, a pit sinking in a fixing plane of the support frame 1 is formed below the support frame 1, an L-shaped track and a transport vehicle 11 in sliding connection with the track are arranged in the pit, and the transport vehicle 11 is connected with a piston rod of a third hydraulic cylinder 303 when reaching a preset position; the fixed base 12 for fixing the drill bit test stand 5 or the rotary blowout preventer 4 is arranged at the tail end of the track right below the support frame 1, and when the transport vehicle 11 is pushed to the tail end of the track, the transport vehicle is right above the fixed base 12, so that the preparation work of the test is greatly facilitated.
The arrangement of the track, the transport vehicle 11 and the third hydraulic cylinder 303 facilitates the transportation of the drill bit test stand 5 with large weight and the rotation of the blowout preventer 4; in the rotary blowout preventer test, it is necessary to hoist the rotary blowout preventer 4 into a pit body with a crane and transport it to the position immediately below the support frame 1 by the transport vehicle 11. But the drill bit test stand 5 is not required to be frequently lifted by a crane, can be always fixed on the transport vehicle 11 and placed at one end of the L-shaped track far away from the fixed base 12, does not influence the transportation of the rotary blowout preventer 4 during the detection test of the rotary blowout preventer, and is convenient for the transportation of the drill bit test stand 5 during the detection test of the drill bit.
The track is formed by welding steel plates with I-shaped structures, and the moving stability of the drill test stand 5 or the rotary blowout preventer 4 needs to be ensured. In the test, the drill test stand 5 is directly connected with the fixed base 12, and the rotary blowout preventer 4 is fixedly connected with the connecting base with a wellhead flange and then connected with the fixed base 12. In the design process, the drill test stand 5, the connecting base with the wellhead flange and the fixed base 12 are subjected to large dynamic loads, and the components are preferably cast steel pieces so as to ensure the bearing of the components and the safety of the test process. In order to accurately obtain the pressure on bit fluctuation during the test, it is preferable to install three pressure sensors in the drill test stand 5.
The support 1 needs to bear the vibration load in the drill bit detection test process in the whole test device and also bears the torque. Because the load and torque of the drill bit detection test are much larger than those of the rotary blowout preventer detection test, the working condition of the drill bit detection test is mainly considered in design, the designed support frame 1 must bear the influence of long-term impact dynamic load and large torque deformation in the test process, meanwhile, the installation and stroke requirements of the first hydraulic cylinder 301 and the second hydraulic cylinder 302 are considered, and the pit body is arranged to reduce the overall height of the support frame 1 and improve the stability and safety of the test device on the premise of ensuring the stroke requirement.
Referring to fig. 5 and 6, the drill bit test stand 5 comprises a sample platform 504, a sample groove for placing a sample is formed in the sample platform 504, and the drill bit 8 needs to drill into the sample during testing, and the sample is preferably a 16Mn steel block. The bottom of the sample tank is provided with a through hole 505 penetrating through the sample platform 504, the through hole 505 can enable cooling water to flow out, and a buffer space can be formed to protect the sample platform 504, so that the drill bit 8 is prevented from rotating excessively, and a circle of anti-skid table for clamping by the clamping device 13 is further arranged at the bottom of the through hole 505. The bottom of sample platform 504 is fixed with platform supporting seat 503, and the inside of platform supporting seat 503 is provided with the cavity that can hold clamping device 13, and platform supporting seat 503 can be connected with unable adjustment base 12. The bottoms of the platform supporting seat 503 and the rotary blowout preventer 4 are respectively provided with a circle of counter bores with the same positions and sizes; the carrier 11 is provided with a circle of connecting pieces matched with the platform supporting seat 503 and the bottom counter bore of the rotary blowout preventer 4, and the connecting pieces can be inserted into the counter bores to prevent the carrier 11 from generating relative movement with the drill bit test stand 5 or the rotary blowout preventer 4 during transportation. Sample platform 504 and closing device 501 swing joint, closing device 501 include threaded rod and lock nut, the one end that the threaded rod stretched into sample platform 504 is fixed with the clamp plate, and the threaded rod of closing device 501 can remove relative sample platform 504, adjusts the length of stretching into, and the sample of convenient cooperation not equidimension, clamp plate can increase the area of contact with the sample and push down the sample, and the lock nut also is locked the sample after locking the threaded rod. The compression device 501 is preferably sixteen in number and four on each side of the sample platform 504.
Referring to fig. 7, a second hydraulic cylinder 302 is further mounted on the support frame 1, and the test drill rod 7 is connected to the second hydraulic cylinder 302 in the non-detection state. In the preparation phase of the rotary blowout preventer test, a second hydraulic cylinder is used to press the test drill pipe 7 into the rotary blowout preventer 4. The first hydraulic cylinder 301, the second hydraulic cylinder 302, and the third hydraulic cylinder 303 are each connected to the hydraulic station 3.
Considering the cooling problem of the drill bit performance detection test and the drainage problem of the liquid for flushing the scrap iron, a pool 901 sinking on the bottom surface of the pit body is arranged in the pit body during design, the pool 901 is connected with a water storage tank 902 through a pump and a pipeline, the pump is electrically connected with a control console, the axial center of the rotating shaft 2 is provided with a water through hole penetrating through the whole rotating shaft 2, the center of the first hydraulic cylinder 301 is also provided with a water through hole, and the water through hole is connected with the water storage tank 902 through the pipeline, the pump and the cooling joint 10; the pump is electrically connected with the console. And be provided with ball valve 502 on the drill bit test bench 5, the one end of ball valve 502 communicates with the through-hole 505 of drill bit test bench 5, and the other end of ball valve 502 communicates with the ponding 901. When the drill bit detection test is carried out, cooling water can be introduced into the water through holes after the pump is started, the drill bit 8 can be cooled, broken iron scraps can be conveniently washed, the used cooling water is discharged to the water accumulation tank 901 through the through holes 505, and the water in the water accumulation tank 901 can be discharged to the water storage tank 902 for recycling.
When the drill bit test stand 5 is lifted, the lower end of the rotary shaft 2 is connected with the clamping device 13 through the rotary shaft joint 203; when the drill bit 8 is detected, the lower end of the rotary shaft 2 is connected with the drill bit 8; when the rotary blowout preventer 4 is detected, the lower end of the rotary shaft 2 is connected to the test drill pipe 7. The clamping device 13 comprises a rod 1302, a claw 1301 and a driving mechanism for folding and unfolding the claw 1301 relative to the rod 1302, and the rotating shaft 2 is connected with the rod 1302 through a rotating shaft joint 203.
Referring to fig. 8, the claw 1301 includes a rotation arm 1303, and one end of the rotation arm 1303 is hinged with a clamp base 1304, and the other end is hinged with a claw head 1305. The inside of the claw head 1305 is provided with anti-skid patterns, the outside is provided with a flexible pad, the inside of the claw head 1305 is contacted with the anti-skid table, the anti-skid patterns can increase static friction force, and the outside is provided with the flexible pad, so that the claw head 1305 can be prevented from colliding with the wall of the through hole 505. The driving mechanism comprises a driving motor and a lead screw connected with the tail end of the rod 1302 through a bearing, and the lead screw is not contacted with the rod 1302. The screw rod is connected with the clamp base 1304 through a bearing, and one end of the screw rod penetrating through the clamp base 1304 is connected with a driving motor fixed on the clamp base 1304; the lead screw is connected with a sliding block 1306 in a sliding way, and the rotating arm 1303 is hinged with the sliding block 1306 through a limiting connecting arm 1307.
The inner wall of the slide block 1306 is provided with teeth matched with the screw thread, and the slide block 1306, the driving motor and the screw form a sliding screw system. When the drill bit test stand 5 is lifted, the driving motor is started to rotate forward, the screw is driven to rotate, the sliding block 1306 is driven to move downwards in a flat shape along the screw, and the limiting connecting arm 1307 pulls the rotating arm 1303 downwards, so that the claw 1301 is in a folded state. Starting the first hydraulic cylinder 301 and driving the clamping device 13 to move downwards, wherein the clamping device 13 falls to the opening of the through hole 505, and the claw 1301 in the furled state stretches into the through hole 505; after the claw 1301 stretches out of the through hole 505, the driving motor is started to rotate reversely, the sliding block 1306 is driven to move upwards in a flat shape along the screw rod, the limiting connecting arm 1307 pulls the rotating arm 1303 upwards to enable the claw 1301 to be in an open state, after the claw head 1305 clamps the anti-skid platform of the through hole 505, when the first hydraulic cylinder 301 is started to move upwards, the claw 1301 drives the whole drill bit test bench 5 to move upwards together, and lifting of the drill bit test bench 5 is completed.
The detection test of the bit performance is mainly aimed at the drill bit for petroleum and natural gas drilling, such as a roller bit, and can detect the damage condition of the drill bit 8 in a certain time of drilling a sample, thereby preventing the occurrence of accidents of the drill bit with unqualified quality in the drilling process. The test principle is that the test sample is drilled with a certain bit pressure and rotating speed under the normal temperature condition, and the damage condition of the teeth, the bearings and the diameter of the drill bit is evaluated, so that the performance of the drill bit is scientifically detected, and clear water is preferably used as cleaning liquid.
Referring to FIG. 4, a diagram of a data acquisition system of the present invention; the test device of the invention is provided with vortex sensors for monitoring the rotation speeds of a drill bit and a cone, torque sensors for monitoring the torque of the driving device 6, displacement sensors for monitoring the displacement conditions of the first hydraulic cylinder 301, the second hydraulic cylinder 302 and the third hydraulic cylinder 303, pressure sensors for monitoring the drill bit pressure during the drill bit detection test, temperature sensors for monitoring the temperature of the shell of the rotary blowout preventer 4 in the rotary blowout preventer 4 test, pressure transmissions for monitoring the piston pressures of the first hydraulic cylinder 301, the second hydraulic cylinder 302 and the third hydraulic cylinder 303 and a plurality of monitoring cameras for observing the operation conditions of equipment. The eddy current sensor is connected with the first data acquisition card; the torque sensor is connected with the second data acquisition card through the converter, the displacement sensor, the amplifier, the temperature sensor, the pressure sensor, the transmitter and the pressure transmission through the amplifier. The first data acquisition card, the second data acquisition card and the camera are electrically connected with the control console, and a plurality of control buttons and a display screen for displaying parameter change curves and monitoring videos in real time are arranged on the control console. The dynamic signals in all test processes are used for obtaining test data through developed control detection software, and finally, the test data and test curves of dynamic parameters changing along with time can be obtained and displayed on a display screen of a control console in real time.
The invention can be used for a drill bit performance detection test and a rotary blowout preventer performance detection test, such as a sealing performance test, a fatigue test, a rubber core disassembly test, a pressure-bearing tripping life test, a rated dynamic pressure test, a rotary dynamic seal test and the like, and has perfect detection function.
a. The preparation process before and after the drill bit detection test is as follows: 1. the drill bit test bed 5 is fixed on the transport vehicle 11, and the starting position of the drill bit test bed is positioned at one end of the L-shaped track far away from the fixed base 12; placing the sample in a sample platform 504, and compacting the sample by a compacting device 501; 2. the transport vehicle 11 and the drill bit test bed 5 on the transport vehicle are moved to the inflection point of the L-shaped track from the initial position, and are connected with the piston rod of the third hydraulic cylinder 303, the third hydraulic cylinder 303 is started to push the transport vehicle 11 to the position right above the fixed base 12, and the lower end of the rotating shaft 2 is connected with the clamping device 13; 3. starting the first hydraulic cylinder 301 to drive the clamping device 13 to vertically move downwards, starting the driving mechanism of the clamping device 13 to enable the claw 1301 to extend into the through hole 505 of the drill bit test stand 5 after being folded; 4. when the claw 1301 fully stretches into the through hole 505, a driving motor of the clamping device 13 is started to open the claw 1301 and clamp an anti-skid table at the bottom of the through hole 505, and then the first hydraulic cylinder 301 controls the clamping device 13 to move upwards to lift the drill bit test table 5; 5. the transport vehicle 11 is removed, and the drill bit test stand 5 is put down to be connected and fixed with the fixed base 12; 6. the clamping device 13 is disassembled, the lower end of the rotating shaft 2 is connected with the drill bit 8, and a drill bit detection test is carried out; 7. after the test is completed, the drill bit 8 is disassembled, the clamping device 13 is replaced again, the drill bit test bed 5 is lifted and placed on the transport vehicle 11, the transport vehicle 11 is pulled back to the inflection point by the third hydraulic cylinder 303, and the transport vehicle 11 and the drill bit test bed 5 thereon are manually returned to the starting position.
b. The preparation process before and after the detection test of the rotary blowout preventer comprises the following steps: 1. the transport vehicle is placed at the inflection point of the L-shaped track, the rotary blowout preventer 4 is hoisted onto the transport vehicle 11 in the pit body by using a crane, and the transport vehicle 11 is connected with the piston rod of the third hydraulic cylinder 303; 2. the third hydraulic cylinder 303 pushes the transport vehicle 11 to the position right below the second hydraulic cylinder 302, the second hydraulic cylinder 302 is started to press the test drill rod 7 into the rotary blowout preventer 4, and the test drill rod 7 is fixedly connected with the rotary blowout preventer 4; 3. the third hydraulic cylinder 303 continues to push the transport vehicle 11 to a position right below the rotating shaft 2, and connects the rotating shaft 2 with the test drill rod 7; 4. starting the first hydraulic cylinder 301 to lift the rotary blowout preventer 4 and remove the transport vehicle 11, mounting the connection base with the wellhead flange on the fixed base 12, and mounting the rotary blowout preventer 4 on the connection base with the wellhead flange; 5. performing a rotary blowout preventer detection test; 6. after the test is completed, the third hydraulic cylinder 303 pulls the rotary blowout preventer 4 to the preset position of the second hydraulic cylinder 302, the test drill rod 7 is taken out, and the rotary blowout preventer 4 is pulled to the initial position to lift out the pit body.
c. Rotary dynamic seal test operation example of rotary blowout preventer 4: the body cavity of the rotary blowout preventer 4 is filled with clean water, water stains at all positions are wiped off, gradual slow boosting is achieved through a pressure testing pump, pressure is stabilized for 5min under the sealing pressure of 1.4-2.1 MPa, the pressure is gradually increased to the maximum working pressure, the rubber core of the rotary blowout preventer 4 seals the test drill rod 7 under the maximum working pressure condition, the rotary shaft 2 drives the test drill rod 7 to rotate, the rotary speed is smaller than or equal to 90r/min, and meanwhile the first hydraulic cylinder 301 drives the test drill rod 7 to reciprocate up and down. After the test is finished, the dynamic seal pressure test of the batch of products is qualified if the sealing part has no leakage and the like, otherwise, the dynamic seal pressure test is unqualified. The test aims to simulate whether the sealing performance of the rotary blowout preventer 4 meets the requirement or not in the process that the drilling tool continues to keep drilling and tripping under pressure under the condition that a wellhead has certain casing pressure.
In conclusion, the rotary blowout preventer with perfect functions and the testing device with the integrated performance detection function of the drill bit are developed, and the testing space and the testing cost are remarkably saved.
Although specific embodiments of the invention have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.
Claims (10)
1. The utility model provides a drill bit and rotatory preventer integration detection test device which characterized in that: the hydraulic device comprises a support frame (1), wherein a rotating shaft (2) is arranged on the support frame (1), and the upper end of the rotating shaft (2) is connected with a first hydraulic cylinder (301) fixed on the support frame (1); the rotating shaft (2) is connected with the driving device (6) through a rotary table (202) sleeved outside the rotating shaft (2);
a pit sinking in the fixing plane of the support frame (1) is arranged below the support frame (1); an L-shaped track and a transport vehicle (11) which is in sliding connection with the track are arranged in the pit body, the transport vehicle (11) is connected with a piston rod of a third hydraulic cylinder (303) when reaching a preset position, and the first hydraulic cylinder (301) and the third hydraulic cylinder (303) are connected with a hydraulic station (3);
a fixed base (12) for fixing the drill bit test stand (5) is arranged at the tail end of the track right below the support frame (1); the drill bit test stand (5) comprises a sample platform (504), wherein a sample groove for placing a sample is formed in the sample platform (504), and a through hole (505) penetrating through the sample platform (504) is formed in the bottom of the sample groove; a platform supporting seat (503) is fixed at the bottom of the sample platform (504), and the platform supporting seat (503) is connected with the fixed base (12) in a detection state; a cavity for accommodating the clamping device (13) is formed in the platform supporting seat (503); a compressing device (501) for compressing the sample is movably connected to the sample platform (504);
when the drill bit test bed (5) is lifted, the lower end of the rotating shaft (2) is connected with a clamping device (13) through a rotating shaft joint (203); when the drill bit (8) is detected, the lower end of the rotating shaft (2) is connected with the drill bit (8); when the rotary blowout preventer (4) is detected, the lower end of the rotary shaft (2) is connected with a test drill rod (7); the clamping device (13) comprises a rod piece (1302), a claw (1301) and a driving mechanism for drawing in and unfolding the claw (1301) relative to the rod piece (1302), and the rotating shaft (2) is connected with the rod piece (1302) through a rotating shaft joint (203);
a control console and a pressure testing pump for pressurizing during testing are arranged on one side of the hydraulic station (3); the hydraulic station (3), the driving device (6) and the pressure testing pump are electrically connected with the control console.
2. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the pit body is also provided with a water accumulation pool (901) sunk on the bottom surface of the pit body, the water accumulation pool (901) is connected with the water storage pool (902) through a pump and a pipeline, and the pump is electrically connected with the control console; the axial center of the rotating shaft (2) is provided with a water through hole penetrating through the whole rotating shaft (2), and the center of the first hydraulic cylinder (301) is provided with the water through hole; the water through hole is connected with the water storage tank (902) through a pipeline, a pump and a cooling joint (10), and the pump is electrically connected with the console; the drill bit test bench (5) is provided with a ball valve (502), one end of the ball valve (502) is communicated with the through hole (505), and the other end of the ball valve (502) is communicated with the water accumulation pool (901).
3. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the driving device (6) comprises a coupler (601), a motor and a driver which are sequentially connected, and the coupler (601) is connected with the turntable (202).
4. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 3, wherein: the turntable (202) comprises a turntable base (2024) and a turntable core (2023), a supporting seat (101) for supporting the first hydraulic cylinder (301) is arranged on the turntable base (2024), and the center of the turntable base (2024) is connected with the turntable core (2023) through a bearing; the inner wall of the rotary table core (2023) is provided with a spline groove matched with a spline shaft of the rotary shaft (2), the rotary table core (2023) is sleeved with a circle of conical fluted disc (2022), the conical fluted disc (2022) is perpendicular to the conical gear (2021) and meshed with the conical gear, and the shaft of the conical gear (2021) is fixed on the supporting seat (101) through a bearing and is connected with the coupler (601).
5. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the support frame (1) is further provided with a second hydraulic cylinder (302), the test drill rod (7) is connected with a piston rod of the second hydraulic cylinder (302) in a non-detection state, and the second hydraulic cylinder (302) is connected with the hydraulic station (3).
6. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the claw (1301) comprises a rotating arm (1303), one end of the rotating arm (1303) is hinged with a clamp base (1304), and the other end is hinged with a claw head (1305); the inner side of the claw head (1305) is provided with anti-skid patterns, and the outer side of the claw head is provided with a flexible pad; a circle of anti-sliding table for clamping the claw (1301) is arranged at the bottom of the through hole (505);
the driving mechanism comprises a driving motor and a lead screw connected with the tail end of the rod piece (1302) through a bearing, and the lead screw is not contacted with the rod piece (1302); the screw rod is connected with the clamp base (1304) through a bearing, and one end of the screw rod penetrating through the clamp base (1304) is connected with a driving motor fixed on the clamp base (1304); the screw rod is connected with a sliding block (1306) in a sliding mode, and the rotating arm (1303) is hinged to the sliding block (1306) through a limiting connecting arm (1307).
7. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the bottoms of the platform supporting seat (503) and the rotary blowout preventer (4) are respectively provided with a circle of counter bores with the same positions and sizes; and a circle of connecting pieces matched with the platform supporting seat (503) and the bottom counter bore of the rotary blowout preventer (4) are arranged on the transport vehicle (11).
8. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the compressing device (501) comprises a threaded rod and a locking nut, and a pressing plate is fixed at one end of the threaded rod extending into the sample platform (504).
9. The drill bit and rotary blowout preventer integrated detection test apparatus of claim 1, wherein: the testing device is provided with vortex sensors for monitoring the rotation speeds of the drill bit and the cone, torque sensors for monitoring the torque of the driving device (6), displacement sensors for monitoring the displacement conditions of the first hydraulic cylinder (301), the second hydraulic cylinder (302) and the third hydraulic cylinder (303), pressure sensors for monitoring the drill bit pressure during the detection test, temperature sensors for monitoring the shell temperature of the rotary blowout preventer (4), pressure transmissions for monitoring the piston pressures of the first hydraulic cylinder (301), the second hydraulic cylinder (302) and the third hydraulic cylinder (303) and a plurality of monitoring cameras for observing the operation conditions of equipment; the vortex sensor is connected with the first data acquisition card; the torque sensor, the displacement sensor, the temperature sensor, the pressure sensor and the pressure transmission are all connected with the second data acquisition card; the first data acquisition card, the second data acquisition card and the camera are electrically connected with the console; the control console is provided with a plurality of control buttons and a display screen for displaying parameter change curves and monitoring videos in real time.
10. A method of performing a drill bit testing in a rotary blowout preventer integrated testing apparatus according to any one of claims 1 to 9, comprising the steps of:
s1, fixing a drill bit test bed (5) on a transport vehicle (11), wherein the initial position of the drill bit test bed is positioned at one end of an L-shaped track far away from a fixed base (12); placing a sample into a sample platform (504) and compacting by adopting a compacting device (501);
s2, moving the transport vehicle (11) and the drill bit test bed (5) on the transport vehicle from a starting position to an inflection point of the L-shaped track, and connecting the transport vehicle with a piston rod of a third hydraulic cylinder (303); starting a third hydraulic cylinder (303) to push the transport vehicle (11) to the position right above the fixed base (12), and connecting the lower end of the rotating shaft (2) with the clamping device (13);
s3, starting a first hydraulic cylinder (301), driving the clamping device (13) to vertically move downwards, and starting a driving mechanism of the clamping device (13) to enable the claw (1301) to extend into a through hole (505) of the drill bit test stand (5) after being folded;
s4, after all the claw (1301) stretches into the through hole (505), starting a driving motor of the clamping device (13) to enable the claw (1301) to open and clamp an anti-sliding table at the bottom of the through hole (505), and then controlling the clamping device (13) to move upwards by the first hydraulic cylinder (301) to lift the drill bit test table (5);
s5, removing the transport vehicle (11), and putting down the drill bit test bed (5) to be connected and fixed with the fixed base (12);
s6, detaching the clamping device (13), connecting the lower end of the rotating shaft (2) with the drill bit (8), and performing a drill bit detection test;
s7, after the test is completed, the drill bit (8) is disassembled, the clamping device (13) is replaced, the drill bit test bed (5) is lifted and placed on the transport vehicle (11), the transport vehicle (11) is pulled back to the inflection point by the third hydraulic cylinder (303), and the transport vehicle (11) and the drill bit test bed (5) on the transport vehicle are returned to the initial position.
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| CN104995370A (en) * | 2012-12-05 | 2015-10-21 | 西迪斯-艾皮有限公司 | Radial clamping/sealing system and drilling system provided therewith for (semi)-continuous drilling a borehole, drilling rig comprising such system, and method there for |
| CN107709696A (en) * | 2015-06-10 | 2018-02-16 | 勇士钻机技术有限公司 | Efficiently probing and a drill system |
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