CN108453663B - RTTS packer hydraulic anchor piston taking-out device and using method - Google Patents
RTTS packer hydraulic anchor piston taking-out device and using method Download PDFInfo
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- CN108453663B CN108453663B CN201810222406.2A CN201810222406A CN108453663B CN 108453663 B CN108453663 B CN 108453663B CN 201810222406 A CN201810222406 A CN 201810222406A CN 108453663 B CN108453663 B CN 108453663B
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- hydraulic anchor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention provides a device for taking out a hydraulic anchor piston of an RTTS packer and a using method thereof, and the device comprises a clamping mechanism, a connecting piece, a round rod and a punch hammer, wherein the connecting piece is provided with two parallel surfaces, one surface of the connecting piece is provided with a T-shaped groove and is in sliding connection with the clamping mechanism through the T-shaped groove, the other surface of the connecting piece is vertically and fixedly provided with the round rod, the round rod penetrates through the punch hammer, and the round rod can reciprocate in the punch hammer; the clamping mechanism comprises two clamping blocks connected by a bolt, one end of each clamping block is inserted into a small hole of the piston, the other end of each clamping block is connected with the connecting piece in a sliding mode, a positioning through hole is formed in each clamping block in the sliding direction, internal threads are formed in each positioning through hole, and the bolt penetrates through each positioning through hole to adjust the distance between the two clamping blocks through threads. The invention has simple structure and convenient use, effectively reduces the labor intensity and improves the maintenance efficiency of the RTTS packer.
Description
Technical Field
The invention belongs to the technical field of petroleum and natural gas tooling equipment, and particularly relates to a hydraulic anchor piston taking-out device of an RTTS packer and a using method thereof.
Background
The RTTS packer is mainly applied to oil layer transformation and oil testing construction in oil field exploration and development, has the advantages of simple operation and high construction success rate, and has good economic and social benefits. Particularly, the tool becomes a necessary construction tool for isolating stratum and measuring stratum parameters in the test construction of oil and gas wells. After the construction of the tool is completed, the hydraulic anchor part of the tool needs to be maintained, a hydraulic anchor piston is cleaned, an O ring is replaced, and the tool is ready to enter a well again.
In the routine maintenance process, a pair of pliers is generally adopted to clamp two small holes of a hydraulic anchor piston, and the piston is gradually pulled out while being rotated, so the taking-out mode has the problems that the ① taking-out process takes long time, most of the whole maintenance process takes time to take the piston, the maintenance efficiency is low, the labor intensity of ② workers is high, particularly after the well killing fluid is dried, or a tool works for a long time under the high-temperature working condition in a well, the piston and the hydraulic anchor body are adhered together, the piston is difficult to rotate, and sometimes two tired wrists can be completed.
The mode of taking out the piston in daily maintenance seriously influences the maintenance efficiency of the RTTS packer, and an RTTS packer hydraulic anchor piston taking-out device which is convenient to use, low in labor intensity and high in maintenance efficiency is urgently needed to be developed.
Disclosure of Invention
In view of this, the invention aims to provide a hydraulic anchor piston taking-out device of an RTTS packer and a using method thereof, which are simple in structure and convenient to use, effectively reduce labor intensity and improve maintenance efficiency of the RTTS packer.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a RTTS packer hydraulic anchor piston withdrawing device comprises a clamping mechanism, a connecting piece, a round rod and a punch hammer, wherein the connecting piece is provided with two parallel surfaces, one surface of the connecting piece is provided with a T-shaped groove and is in sliding connection with the clamping mechanism through the T-shaped groove, the other surface of the connecting piece is vertically and fixedly provided with the round rod, the round rod penetrates through the punch hammer, and the round rod can reciprocate in the punch hammer;
the clamping mechanism comprises two clamping blocks connected by a bolt, one end of each clamping block is inserted into a small hole of the piston, the other end of each clamping block is connected with the connecting piece in a sliding mode, a positioning through hole is formed in each clamping block in the sliding direction, internal threads are formed in each positioning through hole, and the bolt penetrates through each positioning through hole to adjust the distance between the two clamping blocks through threads.
Furthermore, the fixture block comprises a clamping head and a connecting seat, the clamping head is cylindrical, the cross section of the connecting seat is T-shaped, the clamping head is fixedly arranged at the tail of the connecting seat, the head of the connecting seat is arranged in a T-shaped groove of the connecting piece, a positioning through hole is arranged on the connecting seat, and the axial lead direction of the positioning through hole is perpendicular to the axial lead direction of the clamping head.
Furthermore, the round rod is parallel to the arrangement direction of the clamping heads, and a connecting line between the circle centers of the two clamping heads is intersected with the axis line of the round rod.
Furthermore, the outer surface of the clamping head is provided with saw-toothed protrusions.
Furthermore, one end of the round rod penetrating through the impact hammer is detachably provided with a force applying rod.
Furthermore, one end, close to the outer side, of the positioning through hole of one of the connecting seats is a round hole with a radius larger than that of the positioning through hole, and the positioning through hole and the round hole are in a stepped hole shape.
Furthermore, the bolt is an inner hexagon bolt, and the head part of the inner hexagon bolt is positioned in the round hole.
Further, the connecting piece is cuboid.
The invention also provides a method for using the RTTS packer hydraulic anchor piston extraction device, which comprises the following steps:
the method comprises the following steps: connecting the two clamping blocks together by using a bolt, adjusting the distance between the two clamping blocks to clamp the two clamping blocks in two small holes of a hydraulic anchor piston, and tightening an inner bolt to ensure that the two clamping blocks are tightly connected with the piston through the matching of the clamping heads and the small holes;
step two: sliding the connecting piece into the two clamping blocks from one end of the two clamping blocks to connect the clamping mechanism, the connecting piece and the piston into a whole;
step three: the clamping mechanism and the connecting piece are rotated to drive the piston to rotate;
step four: when the piston is flexible in rotation, the hydraulic anchor piston is taken out of the hydraulic anchor body through the impact hammer.
Compared with the prior art, the RTTS packer hydraulic anchor piston taking-out device and the using method have the following advantages:
according to the RTTS packer hydraulic anchor piston taking-out device and the using method, the clamping head inserted into the small hole of the piston is fixed through the clamping block connected by the bolt, then the loosening of the piston is realized by rotating the clamping mechanism, and then the piston is knocked out by utilizing the impact hammer, so that the RTTS packer hydraulic anchor piston taking-out device is simple in structure and convenient to use, and the labor intensity is effectively reduced; the taking-out efficiency of the hydraulic anchor piston of the RTTS packer is improved, and the production maintenance time and cost are saved; the adaptability is wide, and the distance between the fixture blocks is adjustable, and one set of device can satisfy taking out of current RTTS packer hydraulic anchor piston.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a partial structure of a hydraulic anchor body of an RTTS packer;
FIG. 2 is a front view of an RTTS packer hydraulic anchor piston extraction device in use, according to an embodiment of the present invention;
FIG. 3 is a front view of an upper fixture block in the RTTS packer hydraulic anchor piston take-out device according to an embodiment of the invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a left side view of FIG. 3;
FIG. 6 is a front view of a lower fixture block in the RTTS packer hydraulic anchor piston take-out device according to the embodiment of the invention;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a left side view of FIG. 6;
FIG. 9 is a left side view of a connector in the RTTS packer hydraulic anchor piston extraction device according to an embodiment of the present invention;
fig. 10 is a top view of fig. 9.
Description of reference numerals:
1-round bar; 2-punching hammer; 3-a connector; 4-T-shaped grooves; 5-bolt; 6-positioning the through hole; 7-clamping the head; 8-a connecting seat; 9-a stress application rod; 10-a piston; 11-small holes; 12-a seal ring groove; 13-hydraulic anchor body.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 2 to 10, an RTTS packer hydraulic anchor piston withdrawing device includes a clamping mechanism, a connecting member 3, a round bar 1 and a ram 2, the connecting member 3 has two parallel surfaces, one of the surfaces is provided with a T-shaped groove 4 and is slidably connected with the clamping mechanism through the T-shaped groove 4, the other surface is vertically and fixedly provided with the round bar 1, the round bar 1 passes through the ram 2, and the round bar 1 can reciprocate inside the ram 2;
the clamping mechanism comprises an upper clamping block and a lower clamping block which are connected through a bolt 5, one end of each clamping block is inserted into the small hole 11 of the piston 10, the other end of each clamping block is connected with the connecting piece 3 in a sliding mode, a positioning through hole 6 is formed in each clamping block in the sliding direction, internal threads are formed in each positioning through hole 6, and the bolt 5 penetrates through each positioning through hole 6 to adjust the distance between the two clamping blocks through threads.
The clamping block comprises a clamping head 7 and a connecting seat 8, the clamping head 7 is cylindrical, the cross section of the connecting seat 8 is T-shaped, the clamping head 7 is fixedly arranged at the tail of the connecting seat 8, the head of the connecting seat 8 is arranged in a T-shaped groove 4 of the connecting piece 3, a positioning through hole 6 is arranged on the connecting seat 8, and the axial lead direction of the positioning through hole 6 is perpendicular to the axial lead direction of the clamping head 7.
The arrangement directions of the round rod 1 and the chucks 7 are parallel, and a connecting line between the centers of the two chucks 7 is intersected with the axial lead of the round rod 1.
The outer surface of the chuck 7 is provided with saw-toothed protrusions. After the hexagon socket head cap screw is tightened, the sawtooth-shaped protrusions on the chuck 7 can tightly connect the pistons 10 together, and the friction force is increased.
One end of the round rod 1 penetrating through the impact hammer 2 is detachably provided with a force applying rod 9.
One end of the positioning through hole 6 of the connecting seat 8 on the lower fixture block, which is close to the outer side, is a round hole with the radius larger than that of the positioning through hole 6, and the positioning through hole 6 and the round hole are in a stepped hole shape.
The bolt 5 is a hexagon socket head cap screw, and the head part of the hexagon socket head cap screw is positioned in the round hole.
The connecting member 3 has a rectangular parallelepiped shape.
The RTTS packer hydraulic anchor piston 10 is circular, alloy teeth are welded on the circular surface of the piston 10, a straight groove is formed in the middle of the piston 10, two small holes 11 are drilled at the lower end of the straight groove, and a sealing ring groove 12 is formed in the position, close to the lower portion, of the side face of the piston 10.
During the use, link together two fixture blocks with hexagon socket head cap screw, adjust the distance of two fixture blocks, make its card in two apertures 11 of hydraulic anchor piston 10, tighten hexagon socket head cap screw, make two fixture blocks pass through dop 7 and aperture 11's cooperation, realize being in the same place with piston 10 tight connection, because be provided with T shape recess 4 on the one side of connecting piece 3, and the cross section of connecting seat 8 becomes T shape, both mutually support, can follow the one end slide-in of two fixture blocks with connecting piece 3, make block mechanism, connecting piece 3 is connected as an organic wholely with piston 10. Through rotatory block mechanism of dowel bar 9 and connecting piece 3, and then drive piston 10 rotatory, when piston 10 is rotatory when comparatively nimble, take down dowel bar 9, sheathe impact hammer 2 in, then install dowel bar 9 on round bar 1, round trip movement impact hammer 2 makes hydraulic anchor piston 10 jar out from hydraulic anchor body 13.
A small hole is drilled at the position, perpendicular to the axial lead, of one end of the round rod 1 and used for installing the stress application rod 9. The round bar 3 is welded on the center of the T-shaped groove plane in the connecting piece 3 by welding.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a RTTS packer hydraulic anchor piston remove device which characterized in that: the clamping mechanism comprises a clamping mechanism, a connecting piece (3), a round rod (1) and a punch hammer (2), wherein the connecting piece (3) is provided with two parallel surfaces, one surface of the connecting piece is provided with a T-shaped groove (4) and is in sliding connection with the clamping mechanism through the T-shaped groove (4), the round rod (1) is vertically and fixedly arranged on the other surface of the connecting piece, the round rod (1) penetrates through the punch hammer (2), and the round rod (1) can reciprocate in the punch hammer (2);
the clamping mechanism comprises two clamping blocks connected by a bolt (5), one end of each clamping block is inserted into a small hole (11) of the piston (10), the other end of each clamping block is connected with the connecting piece (3) in a sliding mode, a positioning through hole (6) is formed in each clamping block in the sliding direction, internal threads are formed in each positioning through hole (6), and the bolt (5) penetrates through each positioning through hole (6) to adjust the distance between the two clamping blocks through threads;
the clamping block comprises a clamping head (7) and a connecting seat (8), the clamping head (7) is cylindrical, the cross section of the connecting seat (8) is T-shaped, the clamping head (7) is fixedly arranged at the tail part of the connecting seat (8), the head part of the connecting seat (8) is arranged in a T-shaped groove (4) of the connecting piece (3), a positioning through hole (6) is formed in the connecting seat (8), and the axial lead direction of the positioning through hole (6) is perpendicular to the axial lead direction of the clamping head (7);
the round rod (1) is parallel to the arrangement direction of the clamping heads (7), and the connecting line between the circle centers of the two clamping heads (7) is intersected with the axial lead of the round rod (1).
2. The RTTS packer hydraulic anchor piston take-out device of claim 1, wherein: the outer surface of the clamping head (7) is provided with saw-toothed bulges.
3. The RTTS packer hydraulic anchor piston take-out device of claim 1, wherein: one end of the round rod (1) penetrating through the punch hammer (2) is detachably provided with a forcing rod (9).
4. The RTTS packer hydraulic anchor piston take-out device of claim 1, wherein: one end, close to the outer side, of the positioning through hole (6) of one connecting seat (8) is a round hole with the radius larger than that of the positioning through hole (6), and the positioning through hole (6) and the round hole are in a step hole shape.
5. The RTTS packer hydraulic anchor piston take-out device of claim 4, wherein: the bolt (5) is an inner hexagon bolt, and the head part of the inner hexagon bolt is positioned in the round hole.
6. The RTTS packer hydraulic anchor piston take-out device of claim 1, wherein: the connecting piece (3) is cuboid.
7. A method of using the RTTS packer hydraulic anchor piston extraction device of any of claims 1-6, wherein: the method comprises the following steps:
the method comprises the following steps: connecting the two clamping blocks together by using a bolt (5), adjusting the distance between the two clamping blocks to clamp the two clamping blocks in two small holes (11) of a hydraulic anchor piston (10), and tightening an inner bolt (5) to ensure that the two clamping blocks are tightly connected with the piston (10) through the matching of a clamping head (7) and the small holes (11);
step two: sliding the connecting piece (3) from one end of the two clamping blocks to enable the clamping mechanism, the connecting piece (3) and the piston (10) to be connected into a whole;
step three: the clamping mechanism and the connecting piece (3) are rotated, and then the piston (10) is driven to rotate;
step four: when the piston (10) rotates flexibly, the hydraulic anchor piston (10) is taken out of the hydraulic anchor body (13) through the impact hammer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222406.2A CN108453663B (en) | 2018-03-16 | 2018-03-16 | RTTS packer hydraulic anchor piston taking-out device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222406.2A CN108453663B (en) | 2018-03-16 | 2018-03-16 | RTTS packer hydraulic anchor piston taking-out device and using method |
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| Publication Number | Publication Date |
|---|---|
| CN108453663A CN108453663A (en) | 2018-08-28 |
| CN108453663B true CN108453663B (en) | 2020-04-21 |
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| CN201810222406.2A Active CN108453663B (en) | 2018-03-16 | 2018-03-16 | RTTS packer hydraulic anchor piston taking-out device and using method |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180416Y (en) * | 1993-08-11 | 1994-10-26 | 山西省农业机械化科学研究所 | Taking tool for bearing on blind hole |
| US5400499A (en) * | 1994-02-24 | 1995-03-28 | General Electric Company | Internal bushing removal tool |
| CN102367728A (en) * | 2011-11-15 | 2012-03-07 | 中国石油化工集团公司 | Hydraulic anchor fluke pulling-out tool |
| CN202882817U (en) * | 2012-10-24 | 2013-04-17 | 中国石油化工股份有限公司 | Hydraulic anchor fluke capable of being pulled out, pulling tool and installation tool |
| CN204076158U (en) * | 2014-09-18 | 2015-01-07 | 中国石油集团长城钻探工程有限公司 | Flexible nipple dismantling device |
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Effective date of registration: 20210705 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: No.83, 2nd Street, Binhai New Area Economic and Technological Development Zone, Tianjin 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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