CN110261094B - Test device of pushing mechanism of vertical drilling system - Google Patents
Test device of pushing mechanism of vertical drilling system Download PDFInfo
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- CN110261094B CN110261094B CN201910644689.4A CN201910644689A CN110261094B CN 110261094 B CN110261094 B CN 110261094B CN 201910644689 A CN201910644689 A CN 201910644689A CN 110261094 B CN110261094 B CN 110261094B
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 238000004088 simulation Methods 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 11
- 238000012827 research and development Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 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
Abstract
The invention discloses a test device of a pushing mechanism of a vertical drilling system, which relates to the technical field of drilling and comprises: the device comprises a water tank, a pressure testing pump, a data acquisition and analysis system, a support rack, a leaning simulation assembly, a sensor assembly and a leakage amount measurement assembly, wherein the water tank is connected with the pressure testing pump, the pressure testing pump is connected with the upper end of the leaning simulation assembly, the leaning simulation assembly is fixedly arranged on the support rack, the inside of the leaning simulation assembly is used for placing a leaning mechanism of a vertical drilling system, the sensor assembly and the leakage amount measurement assembly are both connected with the leaning simulation assembly, the sensor assembly, the leakage amount measurement assembly and the pressure testing pump are all electrically connected with the data acquisition and analysis system, so that the requirement that the independent test of the leaning mechanism cannot be met in the prior art is overcome, the performance of the leaning mechanism can be rapidly and effectively tested independently, and structural design parameters are optimized, and the development period of the vertical drilling tool is shortened and the development cost is reduced.
Description
Technical Field
The invention relates to the technical field of drilling, in particular to a test device for a pushing mechanism of a vertical drilling system.
Background
In the vertical drilling tool, the pushing mechanism pushes the pushing leg out and contacts with the well wall under the drive of hydraulic pressure, so that the drilling tool is pushed to achieve the correction. The magnitude of the leg pushing force is directly related to the performance of the vertical drilling tool, how to select and arrange the relevant structural parameters such as the pushing mechanism, the leg shape, the runner size and the like, and how to optimize the relevant design parameters such as the pressure, the runner size, the pushing force, the leakage condition and the like which influence the performance of the pushing mechanism are all key problems to be considered in the initial stage of the development of the vertical drilling system. The existing pushing test device is basically a complete machine test, and mainly researches the performance parameters of the whole vertical drilling tool, such as the response of the whole vertical drilling system to well deviation, the pushing force and the like. The existing test device is not easy to change various test parameters, the test efficiency is low, the optimization of a plurality of structural design parameters of the pushing mechanism cannot be realized, the function is single, the workload is large when the performance parameters of the later pushing mechanism do not reach the standards and the mechanical structure needs to be modified, and the research and development period and the cost are increased. Therefore, it is necessary to develop a test device for testing the performance of the pushing mechanism of the vertical drilling system, so as to meet the requirement of the vertical drilling system for testing the pushing mechanism of the vertical drilling system in the initial development stage.
Disclosure of Invention
The invention aims to provide a test device for a pushing mechanism of a vertical drilling system, which solves the problems in the prior art, and can rapidly and effectively perform a multifunctional dynamic test on the pushing mechanism of the vertical drilling system, so that the pushing mechanism and related design parameters are selected, thereby being beneficial to shortening the research and development period of a vertical drilling tool and reducing the research and development cost.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a test device of a pushing mechanism of a vertical drilling system, which comprises a water tank, a pressure testing pump, a data acquisition and analysis system, a support rack, a pushing simulation assembly, a sensor assembly and a leakage measurement assembly, wherein the water tank is connected with the pressure testing pump, the pressure testing pump is connected with the upper end of the pushing simulation assembly, the pushing simulation assembly is fixedly arranged on the support rack, the pushing mechanism of the vertical drilling system is arranged in the pushing simulation assembly, the sensor assembly and the leakage measurement assembly are connected with the pushing simulation assembly, and the sensor assembly, the leakage measurement assembly and the pressure testing pump are electrically connected with the data acquisition and analysis system.
Preferably, the pushing mechanism test device further comprises a throttle valve, one end of the throttle valve is connected with the water outlet of the pushing simulation assembly, and the other end of the throttle valve is connected with the water tank.
Preferably, the leaning analog component comprises an upper joint, an upper sealing disc, an upper gasket, a lower sealing disc, a lower joint and a leaning unit; the upper gasket and the lower gasket are respectively fixedly sleeved on the upper part of the pushing unit and the lower part of the pushing unit, the upper sealing disc is embedded in the upper joint, the lower sealing disc is embedded in the lower joint, the lower end of the upper joint is in threaded connection with the upper part of the pushing unit, the upper joint is tightly pressed on the upper gasket, the upper end of the upper joint is used for being connected with the pressure test pump, the upper end of the lower joint is in threaded sealing connection with the lower part of the pushing unit, the lower joint is tightly pressed on the lower gasket, and the lower end of the lower joint is used for being connected with the throttle valve.
Preferably, the pushing mechanism test device further comprises an outer shell, the outer shell is arranged outside the pushing unit, the outer shell is fixedly connected to the pushing unit through screws, a plurality of mutually-non-communicated areas are formed between the pushing unit and the outer shell, and a plurality of sensor mounting ports and a plurality of drainage ports are formed in the side wall of the outer shell.
Preferably, the pushing unit comprises a main body, a plurality of pin shafts, a plurality of pushing leg, a steel ball and a pushing piston; a through hole is formed in the vertical direction inside the main body, the through hole is used for placing a pushing mechanism of the vertical drilling system, each pushing leg is rotationally connected with the side wall of the main body through a pin shaft, a plurality of pushing legs are distributed in a central symmetry mode relative to the central line of the main body, a variable diameter is arranged between each pushing leg and the through hole, the variable diameter is a cylinder with a runner inside and threads outside, and the cylinder is used for being in threaded connection with a variable diameter interface on the main body; the end part, close to the pushing leg, of the variable diameter at the left side of the through hole is provided with the steel ball, and the end part, close to the pushing leg, of the variable diameter at the right side of the through hole is provided with the pushing piston.
Preferably, the pushing unit further comprises an upper pin shaft fixing cover and a lower pin shaft fixing cover, the upper pin shaft fixing cover is fixedly arranged on the upper portion of the main body, the lower pin shaft fixing cover is fixedly arranged on the lower portion of the main body, the upper end of each pin shaft is rotationally connected with the upper pin shaft fixing cover, and the lower end of each pin shaft is rotationally connected with the lower pin shaft fixing cover.
Preferably, the sensor assembly comprises a sensor base, a sensor piston, a sealing ring, a sensor and a sensor base, wherein the sensor base is in threaded connection with the sensor mounting port, the sensor piston and the sensor are arranged in the sensor base, the sealing ring is arranged between the sensor base and the sensor piston, one end of the sensor piston is in contact with a pushing leg in the pushing simulation assembly, the other end of the sensor piston is in contact with one end of the sensor, the sensor base is in threaded connection with the other end of the sensor, and the sensor is electrically connected with the data acquisition and analysis system.
Preferably, the leakage measurement assembly comprises a pipeline joint, a drainage pipeline, a flowmeter and a return pipeline, wherein the pipeline joint is connected with the drainage port, one end of the flowmeter is connected with the pipeline joint through the drainage pipeline, the other end of the flowmeter is connected with one end of the return pipeline, the other end of the return pipeline is connected with the water tank, and the flowmeter is electrically connected with the data acquisition and analysis system.
Compared with the prior art, the invention has the following technical effects:
the invention provides a test device of a pushing mechanism of a vertical drilling system, which is characterized in that the pushing mechanism of the vertical drilling system is arranged in a pushing simulation assembly, the pushing simulation assembly is fixed on a supporting bench, high-pressure fluid is pressed into the pushing simulation assembly through a pressure testing pump, the pushing mechanism of the small-diameter vertical drilling system arranged in the pushing simulation assembly drives the pushing simulation assembly to be propped against a sensor assembly after receiving pressure, liquid leakage occurs at the same time, the sensor assembly measures the changing process of the pushing force of the pushing mechanism of each small-diameter vertical drilling system, the leakage quantity of the pushing mechanism of each small-diameter vertical drilling system is measured by a leakage quantity measuring assembly, and a data acquisition and analysis system acquires and analyzes the measured pushing force, the pressure of the pressure testing pump and the leakage quantity. By the arrangement, the performance of the pushing mechanism of the small-diameter vertical drilling system can be tested rapidly and effectively, and the development period of the vertical drilling tool can be shortened, and the development cost can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system of a test device for a pushing mechanism according to the present invention;
FIG. 2 is a front view of a pushing simulation assembly of the pushing mechanism test device provided by the invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along B-B in FIG. 2;
FIG. 5 is a schematic diagram of a first leg of a pushing simulation assembly of the pushing mechanism test device according to the present invention;
FIG. 6 is a schematic diagram of a second leg of the pushing simulation assembly of the pushing mechanism test device according to the present invention;
FIG. 7 is a schematic diagram of a third leg of the pushing simulation assembly of the pushing mechanism test device according to the present invention;
fig. 8 is a schematic diagram of a fourth pushing leg of the pushing simulation assembly of the pushing mechanism test device provided by the present invention.
Wherein: 1. a water tank; 2. a pressure test pump; 3. a support stand; 4. pushing against the analog component; 41. an outer housing; 42. a main body; 43. an upper joint; 44. an upper sealing plate; 45. a gasket is arranged on the upper part; 46. the upper pin shaft is fixed on the cover; 47. a pin shaft; 48. pushing against the leg; 481. a first leg; 482. a second push leg; 483. thirdly, pushing against the leg; 484. fourth pushing against the leg; 49. reducing; 411. a steel ball; 412. pushing the piston; 413. a lower pin shaft fixing cover; 414. a lower gasket; 415. a lower sealing plate; 416. a lower joint; 5. a sensor assembly; 51. a sensor base 52, a sensor piston; 53. a seal ring; 54. a sensor; 55. a sensor base; 6. a throttle valve; 7. and a data acquisition and analysis system.
Detailed Description
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. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
The invention aims to provide a test device for a pushing mechanism of a vertical drilling system, which solves the problems in the prior art, can rapidly and effectively test the performance of the pushing mechanism, and is further beneficial to shortening the research and development period of a vertical drilling tool and reducing the research and development cost.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 8: the embodiment provides a test device of a pushing mechanism of a vertical drilling system, which comprises a water tank 1, a pressure testing pump 2, a data acquisition and analysis system 7, a support frame 3, a pushing simulation assembly 4, a sensor 54 assembly 5 and a leakage amount measuring assembly, wherein the water tank 1 is connected with the pressure testing pump 2 for providing liquid for the pressure testing pump 2, the pressure testing pump 2 is connected with the upper end of the pushing simulation assembly 4 so as to press high-pressure liquid into the pushing simulation assembly 4, the pushing simulation assembly 4 is fixedly arranged on the support frame 3, the pushing mechanism is used for placing the pushing mechanism for the small-diameter vertical drilling system inside the pushing simulation assembly 4, the pushing mechanism drives the pushing simulation assembly 4 to be propped against the sensor assembly 5 under the pressure of the high-pressure liquid and simultaneously causes liquid leakage, the sensor assembly 5 and the leakage amount measuring assembly are connected with the pushing and leaning simulation assembly 4, the sensor assembly 5 is used for measuring the change of pushing and leaning force, the leakage amount measuring assembly is used for measuring the liquid leakage amount of the pushing and leaning simulation assembly 4, the sensor assembly 5, the leakage amount measuring assembly and the pressure testing pump 2 are electrically connected with the data acquisition and analysis system 7 and are used for conveying measured values to the data acquisition and analysis system 7, and the data acquisition and analysis system 7 stores and analyzes the measured pushing and leaning force values, the leakage amount values and the pressure value of the pressure testing pump 2 according to the obtained pushing and leaning force values, so that the performance of the pushing and leaning mechanism can be rapidly and effectively subjected to independent simulation test, and further the development period of a vertical drilling tool can be shortened, and the development cost can be reduced.
The pushing mechanism test device also comprises a throttle valve 6, one end of the throttle valve 6 is connected with the water outlet of the pushing simulation assembly 4, and the other end of the throttle valve 6 is connected with the water tank 1.
The pushing and leaning simulation assembly 4 comprises an upper joint 43, an upper sealing disk 44, an upper gasket 45, a lower gasket 414, a lower sealing disk 415, a lower joint 416 and a pushing and leaning unit; the upper gasket 45 and the lower gasket 414 are respectively fixedly sleeved on the upper part of the pushing unit and the lower part of the pushing unit, the upper sealing disc 44 is embedded in the upper connector 43, the lower sealing disc 415 is embedded in the lower connector 416, the lower end of the upper connector 43 is in threaded connection with the upper part of the pushing unit, the upper connector 43 is tightly pressed against the upper gasket 45, the upper end of the upper connector 43 is used for being connected with the pressure testing pump 2, the upper end of the lower connector 416 is in threaded sealing connection with the lower part of the pushing unit, the lower connector 416 is tightly pressed against the lower gasket 414, and the lower end of the lower connector 416 is used for being connected with the throttle valve 6.
The pushing mechanism test device further comprises an outer shell 41, the outer shell 41 is arranged outside the pushing unit, the outer shell 41 is fixedly connected to the pushing unit through screws, the pushing unit and the outer shell 41 are coaxially arranged, a plurality of mutually non-communicated areas are formed between the pushing unit and the outer shell 41, and a plurality of sensor mounting ports and a plurality of drainage ports are formed in the side wall of the outer shell 41.
The pushing unit comprises a main body 42, a plurality of pin shafts 47, a plurality of pushing leg 48, a steel ball 411 and a pushing piston 412; the vertical direction in the main body 42 is provided with a through hole, the through hole is used for placing a small-diameter vertical drilling system, each push leg 48 is uniformly and fixedly connected with a pin shaft 47, each pin shaft 47 is rotationally connected with the side wall of the main body 42, a plurality of push legs 48 are distributed in a central symmetry mode relative to the central line of the main body 42, the number of the pin shafts 47 is equal to that of the push legs 48, preferably four, a variable diameter is arranged between each push leg 48 and the through hole, a flow passage is arranged in the variable diameter, a cylinder with threads is arranged outside and is used for being connected with a variable diameter interface on the main body 42 in a threaded manner, a variable diameter 49 on the left side of the through hole is provided with a steel ball 411 near the end part of the push leg 48, high-pressure liquid entering the push simulation assembly pushes the steel ball 411, the end part of the variable diameter 49 on the right side of the push leg 48 is provided with a push piston 412 near the end part of the push leg 48, the high-pressure liquid entering the push simulation assembly pushes the push piston 412, the push piston 412 contacts the push leg 5, the two push legs 49 are driven by the sensor assembly and directly in a small-pressure liquid leakage measuring mode in the same way as the sensor assembly, and the sensor assembly can not leak in a large-leakage measuring mode by the sensor assembly is not in a direct contact with the push leg 48, and the high-pressure leakage measuring mode can be detected by the sensor assembly and can be directly driven by the sensor assembly in a small-pressure and can be detected by the opposite to the sensor assembly in a small-pressure by the way;
moreover, as the response conditions of the pushing force are different due to different runner sizes, the response conditions of the pushing mechanism under different runner sizes can be simulated by changing different diameters 49; the leaning leg with different sealing forms or internal structures can be subjected to a simulation test by replacing the leaning leg with different sealing forms or internal structures, and the most suitable leaning leg structural parameters are selected according to test results; the pushing leg with different shapes can be subjected to simulation test by replacing the pushing leg with different shapes, so that the pushing force conditions of the pushing leg with different shapes can be obtained, and references and bases are provided for the selection of matched pushing leg and pushing force parameters when the follow-up vertical drilling system works in different strata.
Specifically, compared with the second leg 482, the sealing blocks adopted on the left sides of the first leg 481 are different in shape, so that the sealing effects are different, and a more suitable sealing block can be found out through experimental analysis; in addition, the internal undercut of second leg 482 may result in a different response to the push; the third leg 483 and the fourth leg 484 have different shapes, which results in a change in contact point when the walls of the well contact, so that the magnitudes of the pushing forces are different, and the relationship between each shape and the pushing force can be found out through analysis of test results, thereby providing references and bases for selecting matched leg and pushing force parameters when the drop drilling system works in different rock layers.
Therefore, when testing different pushing mechanisms, the multi-factor dynamic pushing simulation test of different pushing leg, different pressure, different pushing mechanisms and different flow can be performed by only redesigning and replacing the main body 42 in the pushing simulation assembly, and the optimal pushing leg, the pressure drop of the drill bit, the pushing mechanism and the size of the flow passage are selected according to the simulation result, so that theoretical basis is provided for the research and development of the vertical drilling system, and further the research and development period of the vertical drilling system with small diameter is shortened and the research and development cost is reduced. The pushing unit further comprises an upper pin fixing cover 46 and a lower pin fixing cover 413, the upper pin fixing cover 46 is fixedly arranged on the upper portion of the main body 42, the lower pin fixing cover 413 is fixedly arranged on the lower portion of the main body 42, the upper end of each pin 47 is rotationally connected with the upper pin fixing cover 46, the lower end of each pin 47 is rotationally connected with the lower pin fixing cover 413, and the pushing unit is arranged in such a way that the pushing leg 48 can rotate around the pin 47 under the action of pressure of high-pressure liquid.
The sensor assembly 5 comprises a sensor base 51, a sensor piston 52, a sealing ring 53, a sensor 54 and a sensor base 55, wherein the sensor base 51 is in threaded connection with a sensor mounting port, the sensor piston 52 and the sensor 54 are arranged in the sensor base 51, the sealing ring 53 is arranged between the sensor base 51 and the sensor piston 52, one end of the sensor piston 52 is contacted with a pushing leg 48 in the pushing simulation assembly 4, the other end of the sensor piston 52 is contacted with one end of the sensor 54, the sensor base 55 is in threaded connection with the other end of the sensor 54, and the sensor 54 is electrically connected with the data acquisition and analysis system 7 and used for conveying measured values to the data acquisition and analysis system 7.
The leakage quantity measuring assembly comprises a pipeline joint, a drainage pipeline, a flowmeter and a return pipeline, wherein the pipeline joint is connected with a drainage port, one end of the flowmeter is connected with the pipeline joint through the drainage pipeline, the other end of the flowmeter is connected with one end of the return pipeline and used for measuring the flow of liquid leaking by the pushing leg 48 in the pushing process, the other end of the return pipeline is connected with the water tank 1, and the flowmeter is electrically connected with the data acquisition and analysis system 7.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (4)
1. The utility model provides a test device of perpendicular brill system pushing away mechanism which characterized in that: the device comprises a water tank, a pressure testing pump, a data acquisition and analysis system, a support rack, a leaning simulation assembly, a sensor assembly and a leakage amount measurement assembly, wherein the water tank is connected with the pressure testing pump, the pressure testing pump is connected with the upper end of the leaning simulation assembly, the leaning simulation assembly is fixedly arranged on the support rack, the inside of the leaning simulation assembly is used for placing a leaning mechanism of a vertical drilling system, the sensor assembly and the leakage amount measurement assembly are all connected with the leaning simulation assembly, the sensor assembly, the leakage amount measurement assembly and the pressure testing pump are all electrically connected with the data acquisition and analysis system, the device further comprises an outer shell, the outer shell is arranged outside a leaning unit of the leaning simulation assembly, the outer shell is fixedly connected onto the leaning unit through screws, a plurality of mutually-non-communicated areas are formed between the leaning unit and the outer shell, and a plurality of sensor mounting ports and a plurality of leakage ports are formed in the side wall of the outer shell;
the pushing unit comprises a main body, a plurality of pin shafts, a plurality of pushing leg, a steel ball and a pushing piston; a through hole is formed in the vertical direction inside the main body, the through hole is used for placing a pushing mechanism of the vertical drilling system, each pushing leg is rotationally connected with the side wall of the main body through a pin shaft, a plurality of pushing legs are distributed in a central symmetry mode relative to the central line of the main body, a variable diameter is arranged between each pushing leg and the through hole, the variable diameter is a cylinder with a runner inside and threads outside, and the cylinder is used for being in threaded connection with a variable diameter interface on the main body; the steel ball is arranged at the end, close to the pushing leg, of the variable diameter at the left side of the through hole, and the pushing piston is arranged at the end, close to the pushing leg, of the variable diameter at the right side of the through hole;
the sensor assembly comprises a sensor base, a sensor piston, a sealing ring, a sensor and a sensor base, wherein the sensor base is in threaded connection with a sensor mounting port, the sensor piston and the sensor are both arranged in the sensor base, the sealing ring is arranged between the sensor base and the sensor piston, one end of the sensor piston is in contact with a pushing leg in the pushing simulation assembly, the other end of the sensor piston is in contact with one end of the sensor, the sensor base is in contact with the other end of the sensor, the sensor base is in threaded connection with the sensor base, and the sensor is electrically connected with the data acquisition and analysis system;
the leakage quantity measuring assembly comprises a pipeline connector, a drainage pipeline, a flowmeter and a return pipeline, wherein the pipeline connector is connected with the drainage port, one end of the flowmeter is connected with the pipeline connector through the drainage pipeline, the other end of the flowmeter is connected with one end of the return pipeline, the other end of the return pipeline is connected with the water tank, and the flowmeter is electrically connected with the data acquisition and analysis system.
2. The push-on mechanism testing device of claim 1, wherein: the intelligent water tank is characterized by further comprising a throttle valve, one end of the throttle valve is connected with the water outlet of the leaning simulation assembly, and the other end of the throttle valve is connected with the water tank.
3. The pushing mechanism testing device of claim 2, wherein: the pushing and leaning simulation assembly comprises an upper joint, an upper sealing disc, an upper gasket, a lower sealing disc, a lower joint and the pushing and leaning unit; the upper gasket and the lower gasket are respectively fixedly sleeved on the upper part of the pushing unit and the lower part of the pushing unit, the upper sealing disc is embedded in the upper joint, the lower sealing disc is embedded in the lower joint, the lower end of the upper joint is in threaded connection with the upper part of the pushing unit, the upper joint is tightly pressed on the upper gasket, the upper end of the upper joint is used for being connected with the pressure test pump, the upper end of the lower joint is in threaded sealing connection with the lower part of the pushing unit, the lower joint is tightly pressed on the lower gasket, and the lower end of the lower joint is used for being connected with the throttle valve.
4. The push-on mechanism testing device of claim 1, wherein: the pushing unit further comprises an upper pin shaft fixing cover and a lower pin shaft fixing cover, the upper pin shaft fixing cover is fixedly arranged on the upper portion of the main body, the lower pin shaft fixing cover is fixedly arranged on the lower portion of the main body, the upper end of each pin shaft is rotatably connected with the upper pin shaft fixing cover, and the lower end of each pin shaft is rotatably connected with the lower pin shaft fixing cover.
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| CN201910644689.4A CN110261094B (en) | 2019-07-17 | 2019-07-17 | Test device of pushing mechanism of vertical drilling system |
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| CN201910644689.4A CN110261094B (en) | 2019-07-17 | 2019-07-17 | Test device of pushing mechanism of vertical drilling system |
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