CN114033326B - Push rod mounting and dismounting device and method for ground stress test - Google Patents
Push rod mounting and dismounting device and method for ground stress test Download PDFInfo
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- CN114033326B CN114033326B CN202111287437.4A CN202111287437A CN114033326B CN 114033326 B CN114033326 B CN 114033326B CN 202111287437 A CN202111287437 A CN 202111287437A CN 114033326 B CN114033326 B CN 114033326B
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- push rod
- fixing device
- rod
- ground stress
- mounting
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 17
- 210000001503 joint Anatomy 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 14
- 230000004323 axial length Effects 0.000 claims description 5
- 238000009662 stress testing Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The application belongs to the technical field of ground stress testing, and particularly relates to a push rod mounting and dismounting device and method for ground stress testing, wherein the device comprises an automatic push rod device body, a guide frame, two mounting beams, a push rod, two pull rod devices, a first fixing device and two second connecting rods, wherein the automatic push rod device body is mounted on a base, the guide frame is mounted in the center of the base, and the push rod is mounted in the guide frame along the vertical direction; the pull rod device is arranged between the base and the mounting beam; one end of each of the two second connecting rods is connected with the first fixing device, the other end of each of the two second connecting rods is lapped on a chain, and the push rod provided with the first fixing device is connected with the chain. The automatic push rod device has the beneficial effects of simplicity in operation, safety and reliability; the push rod mounting and dismounting method for the ground stress test enables the push rods to be capable of realizing automatic screwing and separation between the push rods and mounting and dismounting of the push rods.
Description
Technical Field
The application belongs to the technical field of ground stress testing, and particularly relates to a push rod mounting and dismounting device and method for ground stress testing.
Background
Currently, ground stress is an undisturbed natural stress present in the formation and is the fundamental force that causes deformation and damage to the subsurface engineering. The ground stress test is an important parameter for engineering rock mass stability analysis and engineering design, and has great guiding significance for underground rock mass analysis and engineering construction. The method for testing the ground stress by hydraulic fracturing is suitable for application in the initial exploration stage of underground engineering.
The existing method for testing the ground stress of the coal rock mass by hydraulic fracturing (application number: 201811319245.5) provides a method for testing the ground stress of the coal rock mass by hydraulic fracturing, which is used for solving the problems of inconvenient measurement, inconvenient transportation and excessively complex equipment of the existing ground stress.
However, the push rod used in the method has the characteristics of heavy weight and long length. In addition, during the test, the push rod needs to be pushed into a 10-meter deep borehole by manpower, so that the labor is wasted, and the time is also wasted. Therefore, the method needs to provide equipment for replacing a manual push rod, and the labor intensity of testers is improved.
Disclosure of Invention
The application provides a push rod mounting and dismounting device and a push rod mounting and dismounting method for a ground stress test.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a push rod installation and dismounting device for ground stress test, includes automatic push rod device body, leading truck, two installation roof beams, first push rod, second push rod, two pull rod devices, first fixing device, second fixing device and two sets of second connecting rods, and two sets of second connecting rods are connected with first fixing device and second fixing device respectively, wherein:
the automatic push rod device body comprises a support frame and a base, and the support frame is covered on the base;
the support frame comprises four support beams and four top beams, the four support beams are arranged around the base along the vertical direction, and the tops of two adjacent support beams are connected through one top beam;
the guide frame is arranged at the center of the base and comprises four limiting rods and four first connecting rods, the four limiting rods are arranged in a quadrilateral manner along the vertical direction, the bottoms of the four limiting rods are connected with the base, and the tops of two adjacent limiting rods are connected through one first connecting rod;
two first connecting rods which are arranged oppositely in a pair of the four first connecting rods are respectively connected with the top beam through one mounting beam, and two mounting Liang Tongzhou are arranged;
the first push rod is arranged in the guide frame along the vertical direction;
the pull rod device is arranged between the base and the mounting beam and comprises a pneumatic engine, a second hydraulic torque converter, a driving wheel, a driven wheel and a chain;
the pneumatic engine is arranged on the base, the transmission shaft of the pneumatic engine is provided with the second hydraulic torque converter, the transmission shaft of the second hydraulic torque converter is provided with the driving wheel, the driven wheel is arranged on the mounting beam, and the chain is sleeved on the driving wheel and the driven wheel;
the first fixing device is arranged at the bottom end of the first push rod;
the second fixing device is arranged at the top of the first push rod;
one end of each second connecting rod is connected with the first fixing device, the other end of each second connecting rod is lapped on one chain, and the first push rod provided with the first fixing device is connected with the chain.
As a further preferred aspect of the present application, the first fixing device includes two first half sleeve structures, the two first half sleeve structures are sleeved at the bottom end of the first push rod, and the two first half sleeve structures and the bottom end of the first push rod are fastened together through matching of a locking ring and a fastener.
As a further preferred aspect of the present application, there is further provided a screwing apparatus for mounting the first push rod and the second push rod together, the screwing apparatus including a first engine, a first propeller shaft, a first torque converter, and a butt joint, wherein:
the first engine is located in the base;
the first transmission shaft is arranged at the output end of the first engine and extends towards the vertical direction;
the first hydraulic torque converter is arranged on the first transmission shaft;
the butt joint is arranged at the end part of the first transmission shaft.
As a further preferred aspect of the present application, the second fixing device includes two second half-sleeve structures, and the two second half-sleeve structures can be assembled outside the first push rod, and are fastened together with the first push rod by matching a locking ring with a fastener; each second half sleeve structure is connected with the chain through one second connecting rod.
As a further preferred aspect of the application, the axial length of the abutment is smaller than the axial length of the first fixture.
As a further preferred aspect of the application, both the first and second fixing means can be inserted inside the abutment, and the first fixing means outer wall can be mated with the abutment inner wall, and the second fixing means outer wall can be mated with the abutment inner wall.
As a further preferred aspect of the present application, the cross section of the outer wall of the first fixing device is identical to the cross section of the inner wall of the abutment and is polygonal; the cross section of the outer wall of the second fixing device is consistent with that of the inner wall of the butt joint and is polygonal.
As a further preferred aspect of the present application, the present application further comprises a locking device for restricting the second push rod to the inside of the guide frame, the locking device comprising two third half sleeve structures and an iron chain, the two third half sleeve structures being capable of being assembled to the outside of the second push rod, and fastening the two third half sleeve structures to the second push rod by the cooperation of the locking ring and a fastener; the third half sleeve type structure is connected with the four limit rods through the iron chains respectively.
As a further preferred aspect of the present application, the engine reverse stop device is provided between the second torque converter and the drive wheel.
The method for installing and detaching the push rod for the ground stress test comprises the following steps:
s1, preparation in the early stage: assembling the automatic push rod device body and the guide frame together, and then moving to a test point where a borehole is drilled and a ground stress test is required;
s2, primary fixing of the second push rod connected with the packer: the second push rod connected with the packer is connected with the guide frame through the locking device;
s3, secondary fixing of the second push rod connected with the packer: the second fixing device is arranged at the bottom of the second push rod connected with the packer and then connected with the two pull rod devices through the second connecting rod;
s4, installing a first push rod, wherein the specific installation steps are as follows:
s4-1, mounting the bottom of the first push rod: taking a first push rod, sleeving the first fixing device on the bottom of the first push rod, and then inserting the first push rod provided with the first fixing device into the butt joint;
s4-2, mounting the top of the first push rod: abutting the top of the first push rod with the interior of the second push rod arranged at the bottom of the packer;
s5, automatically screwing the first push rod: the screwing device works to drive the first push rod arranged in the butt joint to rotate forward, so that the top of the first push rod is screwed into the second push rod arranged at the bottom of the packer, and the connection between the first push rod and the second push rod is completed;
s6, an automatic push rod, which comprises the following specific steps:
s6-1, automatic push rod work preparation: detaching the second connecting rod from the second fixing device, and detaching both the second fixing device and the locking device from the second push rod connected with the packer;
s6-1, automatic push rod work preparation: removing both the second securing means and the locking means from the push rod attached to the packer;
s6-2, installing the second connecting rod: mounting the second connecting rod between the first fixing device and the chain;
s6-3, lifting the first push rod: the pull rod device operates to drive the chain to rotate positively and drive the second connecting rod 11-1 to lift, so that the first push rod is driven to lift.
Through the technical scheme, compared with the prior art, the application has the following beneficial effects:
1. according to the automatic pushing device, the packer is pushed to the drilled hole by manpower, and then the packer is pushed to the drilled hole by the automatic pushing device, so that the labor intensity of operators is reduced.
2. According to the application, the automatic push rod device is used for realizing the automatic push rod of the push rod, so that the lifting by manpower is avoided; meanwhile, the automatic rod withdrawing of the push rod is realized, and the manual disassembly is avoided.
3. The application can also realize the direct automatic screwing and automatic separation of the push rod and the push rod without manual screwing and separation.
Drawings
The application will be further described with reference to the drawings and examples.
FIG. 1 is a schematic front view of the overall structure of the present application;
FIG. 2 is a schematic side view of the overall structure of the present application;
FIG. 3 is a top view of the present application;
FIG. 4 is a schematic view of the overall structure of the locking device of the present application;
FIG. 5 is a schematic view of the overall structure of a second fixing device according to the present application;
FIG. 6 is a schematic view of the overall structure of the first fixing device of the present application;
FIG. 7 is a schematic view of the installation of the abutment and the first fixture of the present application.
In the figure: 1. a pneumatic engine; 2. a driving wheel; 3. a first engine; 4. a first torque converter; 5. a first drive shaft; 6. a first connecting rod; 7. a chain; 8. a first push rod; 9. a limit rod; 10. a locking device; 10-1, iron chain; 10-2, a third half sleeve structure; 10-3, a hard rubber pad; 10-4, fastening pieces; 10-5, locking ring; 11. a second fixing device; 11-1, a second connecting rod; 11-2, a second half sleeve structure; 12. a first fixing device; 12-1, a first half sleeve structure; 13. driven wheel; 14. mounting a beam; 15. a base; 16. a universal wheel; 17. an engine backstop device; 18. a second torque converter; 20. and (5) butt joint.
Description of the embodiments
The application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the application and therefore show only the structures which are relevant to the application.
In the description of the present application, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present application. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present application.
Example 1
The present example provides a preferred embodiment, as shown in fig. 1 to 6, an automatic device for ground stress test, the device includes an automatic push rod device body, a guide frame, two mounting beams 14, a first push rod 8, a second push rod, two pull rod devices, a first fixing device 12, a second fixing device, and two sets of second connecting rods 11-1, the two sets of second connecting rods 11-1 are respectively connected with the first fixing device and the second fixing device, wherein:
as shown in fig. 1 to 3, the body of the automatic push rod device includes a base 15 and a supporting frame, where the base 15 is placed on a working surface, that is, a test point where a borehole is drilled and a ground stress test is required. The supporting frame is covered on the base 15; the support frame includes four supporting beams and four back timber, four the supporting beams along the vertical direction set up in base 15 is all around, adjacent two between the supporting beam top is connected through one the back timber.
The guide frame is installed in the center of the base 15, and comprises four limiting rods 9 and four first connecting rods 6, wherein four limiting rods 9 are arranged in a quadrilateral manner along the vertical direction, the bottoms of the four limiting rods 9 are connected with the base 15, and two adjacent limiting rods 9 are connected between the tops of the limiting rods 9 through one first connecting rod 6. Namely, the four top beams and the four first connecting rods 6 are arranged in a shape like a Chinese character 'hui'.
The first push rod 8 and the second push rod are both internally threaded at one end, externally threaded at the other end, and the connection between the first push rod 8 and the second push rod is achieved by screwing the internally threaded end of the second push rod 8 and the externally threaded end of the first push rod 8. The first push rod 8 is installed in the guide frame along the vertical direction, that is, the middle part of the guide frame needs to be aligned with a test point where the ground stress test is required for drilling, and when the first push rod 8 is installed in the guide frame, the first push rod 8 is aligned with a test point where the ground stress test is required for drilling.
As shown in fig. 3, two first connecting rods 6 of a pair of the four first connecting rods 6 are oppositely arranged, and are respectively connected with the top beam through one mounting beam 14, and the two mounting beams 14 are coaxial.
As shown in fig. 1, the pull rod device is disposed between the base 15 and the mounting beam 14, that is, the pull rod device is disposed along a vertical direction. The pull rod device comprises a pneumatic engine 1, a second hydraulic torque converter 18, a driving wheel 2, a driven wheel 13 and a chain 7; the pneumatic engine 1 is mounted on the base 15, the transmission shaft of the pneumatic engine 1 is provided with the second hydraulic torque converter 18, and the transmission shaft of the second hydraulic torque converter 18 is provided with the driving wheel 2; preferably, the driven wheel 13 is mounted at a corresponding position on the mounting beam 14 directly above the driving wheel 2. The chain 7 is sleeved on the driving wheel 2 and the driven wheel 13, the pneumatic engine 1 can drive the chain 7 to rotate forward and reversely, and the limiting distance between the forward rotation and the reverse rotation is the vertical distance between the driving wheel 2 and the driven wheel 13.
Further, the present embodiment further includes an engine backstop device 17, and the engine backstop device 17 is disposed between the second torque converter 18 and the driving wheel 2. When the first push rod 8 reaches the required position, the pneumatic engine 1 is stopped, but the chain 7 still rotates, so the engine non-return device 17 is arranged, and after the first push rod 8 reaches the required position, the engine non-return device 17 stops the chain 7 from continuing to act in time, so that the first push rod 8 is prevented from deviating from the required position.
The first fixing device 12 is arranged at the bottom end of the first push rod 8; the first fixing device 12 comprises two first half sleeve structures 12-1, wherein the two first half sleeve structures 12-1 are sleeved at the bottom end of the first push rod 8, that is, the two first half sleeve structures 12-1 cover the bottom end of the first push rod 8; two of the first half sleeve structures 12-1 are secured to the bottom end of the first push rod 8 by the engagement of the locking ring 10-5 with the fastener 10-4. Preferably, the fasteners 10-4 are screw-nut fitted.
One end of each of the two second connecting rods 11-1 is connected with the first fixing device 12, the other end is lapped on one chain 7, and the first push rod 8 provided with the first fixing device 12 is connected with the chain 7. Specifically, one end of one of the second connecting rods 11-1 in a group is connected to one of the first half-socket structures 12-1, and the other end of this second connecting rod 11-1 is connected to one of the chains 7; one end of the other second connecting rod 11-1 of one group is connected to the other first half-sleeve structure 12-1, and the other end of this second connecting rod 11-1 is connected to the other chain 7.
Regarding the connection between the second connecting rod 11-1 and the first half-sleeve structure 12-1, it is preferable to use a hole formed in the first half-sleeve structure 12-1, the hole is matched with the second connecting rod 11-1, the hole depth of the hole is larger than the shaft diameter of the second connecting rod 11-1, when automatic pushing is needed, the second connecting rod 11-1 only needs to be inserted into the hole, and the gravity of the pushing rod acts on the hole depth of the hole is larger than the shaft diameter of the second connecting rod 11-1, so that the end of the second connecting rod 11-1 cannot slide from the hole in the automatic pushing process. Regarding the connection between the second connecting rod 11-1 and the chain 7, preferably, the length of the second connecting rod 11-1 is greater than the distance between the middle part of the guide frame and the chain 7, and since the chain 7 is formed by a plurality of links, by passing one end of the second connecting rod 11-1 through the middle part of the link, when automatic pushing is required, the second connecting rod 11-1 does not slip from the link due to the gravity of the pushing rod during the automatic pushing.
Further, the present embodiment further includes a second fixing device for fixing the top of the first push rod 8, where the second fixing device includes two second half sleeve structures 11-2, and the two second half sleeve structures 11-2 can be assembled outside the first push rod 8, and fasten the two second half sleeve structures 11-2 and the first push rod 8 together by matching the locking ring 10-5 with the fastening piece 10-4; preferably, the fasteners 10-4 are screw-nut fitted. Each of the second half-sleeve structures 11-2 is connected to the chain 7 by one of the second connecting rods 11-1.
As regards the connection between the second connecting rod 11-1 and the second half-sleeve structure 11-2, it is preferable to use an opening in the second half-sleeve structure 11-2, which cooperates with the second connecting rod 11-1 and which has a hole depth greater than the axial diameter of the second connecting rod 11-1. The second connecting rod 11-1 is inserted into the hole, and the gravity of the push rod acts on the hole and the hole depth of the hole is larger than the shaft diameter of the second connecting rod 11-1, so that the end of the second connecting rod 11-1 cannot slide from the hole. Regarding the connection between the second connecting rod 11-1 and the chain 7, preferably, the length of the second connecting rod 11-1 is longer than the distance between the middle part of the guide frame and the chain 7, and since the chain 7 is formed of several links, by passing one end of the second connecting rod 11-1 through the middle part of the link, the weight of the second connecting rod 11-1 acts on the push rod, so that the end of the second connecting rod 11-1 does not slip from the link.
Further, the present embodiment further includes a locking device 10 for restricting the second push rod to the inside of the guide frame, the locking device 10 includes two third half sleeve structures 10-2 and an iron chain 10-1, the two third half sleeve structures 10-2 can be assembled outside the second push rod, and the two third half sleeve structures 10-2 and the second push rod are fastened together by matching the locking ring 10-5 with the fastening piece 10-4. Two iron chains 10-1 are welded on each third half sleeve structure 10-2; the third half sleeve type structure 10-2 is respectively connected with the four limit rods 9 through the iron chain 10-1, namely one end of the iron chain 10-1 is connected with the third half sleeve type structure 10-2, and the other end is connected with the limit rods 9. Preferably, the limiting rod 9 is provided with a first hanging ring and a second hanging ring, and the first hanging ring is positioned above the second hanging ring; the first hanging rings on the four limiting rods 9 are positioned on the same horizontal plane, and the second hanging rings on the four limiting rods 9 are positioned on the same plane. The end part of the iron chain 10-1 is provided with a hook, and the iron chain 10-1 is only required to be hung in the first hanging ring or the second hanging ring. Preferably, a hard rubber pad 10-3 is installed between the two third half-sleeve structures 10-2 and the second pushrod.
Further, the axial length of the abutment 20 is smaller than that of the first fixture 12, which not only enables the abutment of the abutment 20 with the first fixture 12, but also avoids the position of the opening in the first half-sleeve structure 12-1, which does not interfere with the installation of the second connecting rod 11-1.
Further, the present embodiment further comprises a screwing device for mounting the first push rod 8 and the second push rod together, the screwing device comprising a first engine 3, a first transmission shaft 5, a first torque converter 4 and a docking head 20, the first engine 3 being located within the base 15; the first transmission shaft 5 is arranged at the output end of the first engine 3 and extends in the vertical direction; the first hydraulic torque converter 4 is arranged on the first transmission shaft 5; the abutment 20 is mounted at the end of the first drive shaft 5. Further, the first fixing device 12 can be inserted into the inside of the abutment 20, and the outer wall of the first fixing device 12 is matched with the inner wall of the abutment 20. Preferably, the cross section of the outer wall of the first fixing device 12 and the cross section of the inner wall of the abutment 20 are polygonal, which is convenient for the rotation of the screwing device, and can drive the first push rod 8 installed in the abutment 20 to rotate.
Further, the present embodiment further includes a universal wheel 16, where the universal wheel 16 is disposed at the bottom of the base 15, so as to facilitate moving the automatic push rod device. Preferably, the universal wheel 16 has a locking function, which enables the automatic push rod device to be stably stationary at a desired position.
The embodiment also provides a method for installing and detaching the push rod for the ground stress test, wherein the implementation environment is that a packer is installed at a test point where the ground stress test is required for drilling, the second push rod is installed below the packer, and the method for installing and detaching the push rod for the ground stress test utilizes the automatic push rod device for the ground stress test to automatically push the push rod, and specifically comprises the following steps:
s1, preparation in the early stage: assembling the automatic push rod device body and the guide frame together, and then moving to a test point where a borehole is drilled and a ground stress test is required;
after the automatic push rod device body and the guide frame are assembled, the second push rod connected with the packer is lifted upwards by manpower until the packer is pushed into a borehole; and then moving the assembled automatic push rod device body and the guide frame to a test point where a borehole needs to be drilled and a ground stress test is performed, and then ensuring that the middle part of the guide frame is aligned with the borehole.
S2, primary fixing of the second push rod connected with the packer: connecting the second push rod connected with the packer with the guide frame through the locking device 10, so that the second push rod connected with the packer is supported without manpower;
specifically, the two third half sleeve structures 10-2 are assembled at the position, close to the bottom end, of the second push rod connected with the packer, and then the two third half sleeve structures 10-2 are fastened with the second push rod through the matching of the locking ring 10-5 and the fastening piece 10-4; the iron chain 10-1 is then hung on the first sling, and the second push rod connected with the packer is then supported without manual effort.
S3, secondary fixing of the second push rod connected with the packer: installing the second fixing device at the bottom of the second push rod connected with the packer, and then connecting the second fixing device with the two pull rod devices through the second connecting rod 11-1;
specifically, the two second half sleeve structures 11-2 are spliced at the bottom of the second push rod connected with the packer, and then are matched with the fastening piece 10-4 through the locking ring 10-5, so that the two second half sleeve structures 11-2 are fastened with the second push rod connected with the packer; the second connecting rod 11-1 is then installed between the second half sleeve structure 11-2 and the chain 7, that is, one end of the second connecting rod 11-1 is inserted into the hole formed in the second half sleeve structure 11-2, and the other end is inserted into the link of the adjacent chain 7, that is, the second fixing of the second push rod connected to the packer is achieved.
S4, installing a first push rod 8, wherein the specific installation steps are as follows:
s4-1, mounting the bottom of the first push rod 8: taking a first push rod 8, sleeving the bottom of the first push rod 8 with the first fixing device 12 (the bottom of the first push rod 8 refers to one end of the first push rod 8 provided with internal threads), and then inserting the first push rod 8 provided with the first fixing device 12 into the butt joint 20;
specifically, the bottom of the first push rod 8 is sleeved with two first half sleeve structures 12-1, and then the locking ring 10-5 is matched with the fastening piece 10-4, so that the first fixing device 12 is connected with the first push rod 8.
S4-2, mounting the top of the first push rod 8: abutting the top of the first push rod 8 with the inside of a second push rod arranged at the bottom of the packer;
firstly, the first push rod 8 with the bottom provided with the first fixing device 12 is vertically aligned, then the iron chain 10-1 is taken out from the first hanging ring position and hung at a second hanging ring position, then the second connecting rod 11-1 arranged on the first fixing device 12 is taken out from a chain ring, and the second connecting rod 11-1 is reinserted into a chain ring according to the position; this achieves that the second push rod situated above is moved downwards by a distance such that the bottom of the second push rod 8 situated above is just in abutment with the top of the first push rod 8 where the first fixture 12 is mounted.
S5, automatically screwing the first push rod 8: the screwing device works to drive the first push rod 8 arranged in the butt joint 20 to rotate forward, so that the top of the first push rod 8 is screwed into the second push rod arranged at the bottom of the packer, and the connection between the first push rod 8 and the second push rod is completed;
specifically, the first engine 3 operates to drive the abutment 20 mounted at the end of the first transmission shaft 5 to rotate in a forward direction, so as to drive the first push rod 8 mounted with the first fixing device 12 to rotate in a forward direction, so that the first push rod 8 mounted with the first fixing device 12 is in threaded connection with the second push rod above the first push rod 8. (the push rods are rigid structures, so the mass is large, and the manual screwing is not easy.)
S6, an automatic push rod, which comprises the following specific steps:
s6-1, automatic push rod work preparation: removing both the second securing means and the locking means 10 from the second push rod connected to the packer;
specifically, the second fixing device is detached, the iron chain 10-1 is taken out from the second hanging ring, and the connection between the locking device 10 and the guide frame is disconnected.
S6-2, installing the second connecting rod 11-1: mounting the second connecting rod 11-1 between the first fixing device 12 and the chain 7;
specifically, one end of the second connecting rod 11-1 is inserted into a hole formed in the first half sleeve structure 12-1, and the other end is inserted into a chain ring of the adjacent chain 7;
s6-3, lifting the first push rod 8: the pull rod device operates to drive the chain 7 to rotate positively to drive the second connecting rod 11-1 to lift, so as to drive the first push rod 8 connected with the second connecting rod 11-1 to lift.
S8, carrying out rod withdrawing on a plurality of push rods, wherein the specific rod withdrawing steps are as follows:
s8-1, carrying out rod withdrawing on the first push rod (the direction of reciprocal is from bottom to top), and specifically comprising the following steps:
s8-1-1, detaching the second connecting rod 11-1 at the bottom of the last push rod;
s8-1-2, the screwing device works to drive the first last push rod arranged in the butt joint 20 to reversely rotate, so that the top of the first last push rod is screwed out of the second last push rod, and the disassembly between the first last push rod and the second last push rod is completed;
specifically, the first engine 3 operates to drive the abutment 20 mounted at the end of the first transmission shaft 5 to rotate reversely, so as to drive the first last push rod to rotate reversely, and the first last push rod is separated from the second last push rod.
S8-1-3, taking the iron chain 10-1 of the locking device 10 on the last but one push rod out of the second hanging ring and then hanging the iron chain into the first hanging ring;
s8-1-4, taking out the first last push rod from the butt joint 20, and then finishing the rod withdrawing of the first last push rod.
S8-2, carrying out rod withdrawing on the second last push rod, wherein the concrete steps are as follows:
s8-2-1, detaching the locking device 10 on the last but one push rod;
specifically, the iron chain 10-1 is first removed from the first hanging ring, and then the locking ring 10-5 and the third half sleeve structure 10-2 are disassembled.
S8-2-2, the pull rod device operates to drive the chain 7 to rotate reversely, and drive the second connecting rod 11-1 arranged on the last push rod to descend, so that the last push rod is driven to descend;
specifically, the second last push rod is required to descend into the butt joint 20; when the first engine 3 is required to stop continuing descending, the engine stopping device 17 stops the driving wheel 2 suddenly, so that the chain 7 is prevented from rotating after the first engine 3 stops running.
S8-2-3, fixing the third last push rod once: connecting the third last push rod with the guide frame through the locking device 10;
specifically, the two third half sleeve structures 10-2 are assembled at the position, close to the bottom end, of the third push rod, and then are matched with the fastening piece 10-4 through the locking ring 10-5, so that the two third half sleeve structures 10-2 and the third push rod are fastened together; the chain 10-1 is then removed from the first eye and hung in the second eye.
S8-2-4, performing secondary fixing on the third last push rod: the second fixing device is arranged at the bottom of the third last push rod and then is connected with the two pull rod devices through the second connecting rod 11-1;
specifically, the two second half sleeve structures 11-2 are assembled at the bottom of the third last push rod, and then are matched with the fastener 10-4 through the locking ring 10-5, so that the two second half sleeve structures 11-2 and the third last push rod are fastened together; and then the second connecting rod 11-1 is installed between the second half sleeve structure 11-2 and the chain 7, that is, one end of the second connecting rod 11-1 is inserted into the hole formed in the second half sleeve structure 11-2, and the other end is inserted into the chain ring of the adjacent chain 7, so as to realize the secondary fixing of the third last push rod.
S8-2-5, disassembling the second connecting rod 11-1 on the last but one push rod;
specifically, the second connecting rod 11-1 is detached from the second fixing device at the bottom of the last but one push rod.
S8-2-6, the screwing device works to drive the second last push rod arranged in the butt joint 20 to reversely rotate, so that the top of the second last push rod is screwed out of the interior of the third last push rod, and the disassembly between the second last push rod and the third last push rod is completed;
s8-2-7, taking the iron chain 10-1 of the locking device 10 at the bottom of the last third push rod out of the second hanging ring and then hanging the iron chain in the first hanging ring;
s8-2-8, taking out the second last push rod from the butt joint 20, and then finishing the rod withdrawing of the second last push rod.
S8-3, referring to the step S8-2, the disassembly of a plurality of push rods can be realized.
And after the step S1 to the step S7 are completed, performing a ground stress test, opening a hydraulic fracturing air pump, and conveying high-pressure water into the plurality of push rods through the water pipe until the packer packing section realizes pressurization to generate cracks. After waiting for completion of the hydraulic fracturing data collection, step S8 is performed.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" in the present application means that each exists alone or both exist.
"connected" as used herein means either a direct connection between components or an indirect connection between components via other components.
With the above-described preferred embodiments according to the present application as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A push rod installation and dismounting device for ground stress test, its characterized in that: including automatic push rod device body, leading truck, two installation roof beams, first push rod, second push rod, two draw bar device, first fixing device, second fixing device and two sets of second connecting rods, two sets of second connecting rods are connected with first fixing device and second fixing device respectively, wherein:
the automatic push rod device body comprises a support frame and a base, and the support frame is covered on the base;
the support frame comprises four support beams and four top beams, the four support beams are arranged around the base along the vertical direction, and the tops of two adjacent support beams are connected through one top beam;
the guide frame is arranged at the center of the base and comprises four limiting rods and four first connecting rods, the four limiting rods are arranged in a quadrilateral manner along the vertical direction, the bottoms of the four limiting rods are connected with the base, and the tops of two adjacent limiting rods are connected through one first connecting rod;
two first connecting rods which are arranged oppositely in a pair of the four first connecting rods are respectively connected with the top beam through one mounting beam, and two mounting Liang Tongzhou are arranged;
the first push rod is arranged in the guide frame along the vertical direction;
the pull rod device is arranged between the base and the mounting beam and comprises a pneumatic engine, a second hydraulic torque converter, a driving wheel, a driven wheel and a chain;
the pneumatic engine is arranged on the base, the transmission shaft of the pneumatic engine is provided with the second hydraulic torque converter, the transmission shaft of the second hydraulic torque converter is provided with the driving wheel, the driven wheel is arranged on the mounting beam, and the chain is sleeved on the driving wheel and the driven wheel;
the first fixing device is arranged at the bottom end of the first push rod;
the second fixing device is arranged at the top of the first push rod;
one end of each second connecting rod is connected with the first fixing device, the other end of each second connecting rod is lapped on one chain, and the first push rod provided with the first fixing device is connected with the chain.
2. A pushrod mounting and dismounting device for use in a ground stress test according to claim 1, wherein: the first fixing device comprises two first half sleeve type structure locking rings, the two first half sleeve type structures are sleeved at the bottom end of the first push rod, and the two first half sleeve type structures are fastened with the bottom end of the first push rod through the matching of the locking rings and the fastening pieces.
3. A push rod attachment and detachment apparatus for a ground stress test as claimed in claim 2, wherein: the device for tightening the first push rod and the second push rod together further comprises a tightening device for installing the first push rod and the second push rod together, wherein the tightening device comprises a first engine, a first transmission shaft, a first hydraulic torque converter and a butt joint, and the device comprises:
the first engine is located in the base;
the first transmission shaft is arranged at the output end of the first engine and extends towards the vertical direction;
the first hydraulic torque converter is arranged on the first transmission shaft;
the butt joint is arranged at the end part of the first transmission shaft.
4. A pushrod mounting and dismounting device for use in a ground stress test according to claim 3, wherein: the second fixing device comprises two second half sleeve structures which can be assembled outside the first push rod and are fastened with the first push rod through matching of a locking ring and a fastening piece; each second half sleeve structure is connected with the chain through a group of second connecting rods.
5. A pushrod mounting and dismounting device for use in a ground stress test according to claim 4, wherein: the axial length of the abutment is smaller than the axial length of the first fixture.
6. A pushrod mounting and dismounting device for use in a ground stress test according to claim 5, wherein: the first fixing device and the second fixing device can be inserted into the butt joint, the outer wall of the first fixing device can be matched with the inner wall of the butt joint, and the outer wall of the second fixing device can be matched with the inner wall of the butt joint.
7. A pushrod mounting and dismounting device for use in a ground stress test according to claim 6, wherein: the cross section of the outer wall of the first fixing device is consistent with the cross section of the inner wall of the butt joint and is polygonal; the cross section of the outer wall of the second fixing device is consistent with that of the inner wall of the butt joint and is polygonal.
8. A pushrod mounting and dismounting device for use in a ground stress test according to claim 7, wherein: the locking device comprises two third half sleeve structures and an iron chain, the two third half sleeve structures can be assembled outside the second push rod, and the two third half sleeve structures are fastened with the second push rod through the matching of the locking ring and the fastening piece; the third half sleeve type structure is connected with the four limit rods through the iron chains respectively.
9. The pushrod installation and removal device for use in a geostress test of claim 8, comprising a bottom mounted pushrod packer, wherein: the engine reverse stop device is arranged between the second hydraulic torque converter and the driving wheel.
10. The utility model provides a push rod installation and dismantlement method for ground stress test, includes the packer of push rod is installed to the bottom, its characterized in that: the installation and the disassembly of the first push rod and the second push rod are carried out by using the push rod installation and the disassembly device for the ground stress test according to the claim 9, and the installation and the disassembly methods of the first push rod and the second push rod for the ground stress test specifically comprise the following steps:
s1, preparation in the early stage: assembling the automatic push rod device body and the guide frame together, and then moving to a test point where a borehole is drilled and a ground stress test is required;
s2, primary fixing of the second push rod connected with the packer: connecting the second push rod connected with the packer with the guide frame through the locking device;
s3, secondary fixing of the second push rod connected with the packer: the second fixing device is arranged at the bottom of the second push rod connected with the packer and then connected with the two pull rod devices through the second connecting rod;
s4, installing a first push rod, wherein the specific installation steps are as follows:
s4-1, mounting the bottom of the first push rod: taking a first push rod, sleeving the first fixing device on the bottom of the first push rod, and then inserting the first push rod provided with the first fixing device into the butt joint;
s4-2, mounting the top of the first push rod: abutting the top of the first push rod with the interior of the second push rod arranged at the bottom of the packer;
s5, automatically screwing the first push rod: the screwing device works to drive the first push rod arranged in the butt joint to rotate forward, so that the top of the first push rod is screwed into the second push rod arranged at the bottom of the packer, and the connection between the first push rod and the second push rod is completed;
s6, an automatic push rod, which comprises the following specific steps:
s6-1, automatic push rod work preparation: detaching the second connecting rod from the second fixing device, and detaching both the second fixing device and the locking device from the second push rod connected with the packer;
s6-2, installing the second connecting rod: mounting the second connecting rod between the first fixing device and the chain;
s6-3, lifting the first push rod: the pull rod device operates to drive the chain to rotate positively and drive the second connecting rod to lift up, so that the first push rod is driven to lift up.
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| CN202111287437.4A CN114033326B (en) | 2021-11-02 | 2021-11-02 | Push rod mounting and dismounting device and method for ground stress test |
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| CN202111287437.4A CN114033326B (en) | 2021-11-02 | 2021-11-02 | Push rod mounting and dismounting device and method for ground stress test |
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| CN115326267B (en) * | 2022-10-17 | 2023-01-24 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Logging cable tension measurement alarm instrument and use method thereof |
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