CN215804440U

CN215804440U - Buckle tool

Info

Publication number: CN215804440U
Application number: CN202121654643.XU
Authority: CN
Inventors: 谷爱民; 陈大厂; 于洋; 李新; 薛本会; 韩昌海
Original assignee: DOWNHOLE SPECIAL OPERATION Co OF SINOPEC ZHONGYUAN ENGINEERING Ltd; Sinopec Oilfield Service Corp; Sinopec Zhongyuan Petroleum Engineering Co Ltd
Current assignee: DOWNHOLE SPECIAL OPERATION Co OF SINOPEC ZHONGYUAN ENGINEERING Ltd; Sinopec Oilfield Service Corp; Sinopec Zhongyuan Petroleum Engineering Co Ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-02-11
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a buckling tool, which comprises an upper joint, an outer shell, a buckling head, an elastic piece and a righting pipe, wherein the bottom end of the righting pipe is provided with a milling head; the top end of the upper joint can be connected with a drilling tool, two ends of the outer shell are respectively connected with the bottom end of the upper joint and the top end of the opposite buckle, the centering pipe is packaged in the outer shell, the outer wall of the centering pipe is in circumferential transmission connection with the inner wall of the outer shell, the centering pipe can slide along the axial direction of the centering pipe, and the top end of the centering pipe is in limit butt joint with the bottom end of the upper joint; the bottom end of the righting pipe extends out of the buckling head, the inner wall of the outer shell is provided with a step, the top end of the righting pipe is provided with a convex edge positioned above the step, the elastic piece in a compressed state is sleeved outside the righting pipe, and two ends of the elastic piece are respectively abutted against the convex edge and the step. After the fish is drilled and milled to the required length, the well is washed to take out the drilled and milled objects; the pump is stopped, the righting pipe moves upwards to reset under the action of the elastic piece, the butt-buckling is not influenced by the fact that a blockage props against the righting pipe when the butt-buckling is carried out, the drilling tool is placed downwards, and the butt-buckling is carried out on the buckling head and the fish falling.

Description

Buckle tool

Technical Field

The utility model relates to the technical field of oil exploration and development operation tools, in particular to a make-up tool.

Background

In the construction of oil gas field examination oil gas, because various reasons can take place the test tubular column and fall the well card and bore salvage the accident, in order to realize whole salvage when salvaging test instrument, can take to detain to salvage and carry out the whole unfreezing measure of jarring.

At present, a fishing head of a drilling tool faces the situation that a blockage exists in a pipe column, and a leading head can be propped by the blockage, so that a butt joint connector cannot be in contact with threads of underground falling objects, and the butt joint fishing fails.

Therefore, how to facilitate the stabbing fishing is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a make-up tool, which can drill deposits in a pipe string to achieve successful make-up, so as to improve the fishing efficiency.

In order to achieve the above object, the present invention provides the following solutions:

a make-up tool comprises an upper joint, an outer shell, a make-up head, an elastic piece and a centering pipe with a milling head at the bottom end;

the top end of the upper joint can be connected with a drilling tool, two ends of the outer shell are respectively connected with the bottom end of the upper joint and the top end of the buckling head, the centering pipe is packaged in the outer shell, the outer wall of the centering pipe is in circumferential transmission connection with the inner wall of the outer shell, the centering pipe can slide along the axial direction of the centering pipe, and the top end of the centering pipe is in limit abutting connection with the bottom end of the upper joint; the bottom end of the righting pipe extends out of the buckling head, a step is arranged on the inner wall of the outer shell, a convex edge located above the step is arranged at the top end of the righting pipe, the elastic piece in a compressed state is sleeved outside the righting pipe, and two ends of the elastic piece are respectively abutted to the convex edge and the step.

In a particular embodiment, the outer housing comprises a connection sleeve and a lower joint;

the top of adapter sleeve with the bottom of top connection is connected, the top of bottom connection with the bottom of adapter sleeve is connected, just the step sets up on the inner wall of bottom connection.

In another specific embodiment, an external thread is formed on the outer wall of the bottom end of the upper joint, an internal thread connected with the external thread of the upper joint is formed on the inner wall of the top end of the connecting sleeve, and the inner wall of the upper joint extends out of the inner wall of the connecting sleeve in the direction close to the axis of the connecting sleeve to form a limiting boss for limiting the righting pipe.

In another specific embodiment, the outer wall of the bottom end of the connecting sleeve is provided with an external thread, and the inner wall of the top end of the lower joint is provided with an internal thread connected with the external thread of the connecting sleeve.

In another specific embodiment, one of the inner wall of the connecting sleeve and the outer wall of the centralizing pipe is provided with a key, and the other one is provided with a key slot matched with the key.

In another specific embodiment, the outer wall of the top end of the opposite buckling head is provided with an external thread, and the inner wall of the bottom end of the connecting sleeve is provided with an internal thread connected with the external thread of the opposite buckling head.

In another specific embodiment, the inner wall of the step is sealed to the outer wall of the centralizer tube by a seal.

In another specific embodiment, a sealing groove for accommodating the sealing element is formed on the inner wall of the step.

In another specific embodiment, the milling head has a decreasing diameter in a direction from the top end to the bottom end of the milling head.

In another specific embodiment, the outer wall of the milling head is provided with a layer of cemented carbide.

The various embodiments according to the utility model can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the utility model and are part of the specific embodiments of the utility model.

When the buckling tool provided by the utility model is used, an upper joint of the buckling tool is connected with a drilling tool and is put into a well, a pump is started above the top of a fish, water acts on a centering pipe, an elastic part is compressed downwards, the centering pipe extends downwards, the drilling tool is rotated and put downwards, a milling head at the bottom end of the centering pipe contacts sediment in the fish, and the torque of the drilling tool is transmitted to the centering pipe through an outer shell, so that the sediment in the fish is milled; after the drilling and milling reaches the required length, the well is washed to take out the drilling and milling object; then, the pump is stopped, the righting pipe moves upwards to reset under the action of restoring force of the elastic piece, the righting effect can be achieved, the butt-joint cannot be propped by a blocking object when the butt-joint is carried out, the butt-joint is influenced, the drilling tool is placed downwards, and the butt-joint is achieved through the butt-joint head and the underground fish thread. The buckling tool provided by the utility model can be used for drilling sediments in a pipe column, so that successful buckling is realized, and the fishing treatment efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without novelty work.

FIG. 1 is a schematic diagram of a half-section structure of a make-up tool provided by an embodiment of the present invention;

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Wherein, in fig. 1-2:

the butt-joint tool comprises a butt-joint tool 1000, an upper joint 100, an outer shell 200, a butt-joint head 300, an elastic piece 400, a milling head 501, a centering pipe 500, a step 201, a convex edge 502, a connecting sleeve 202, a lower joint 203, a limiting boss 101, a sealing element 600 and a hard alloy layer 503.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any new effort, are within the scope of the utility model.

As shown in figure 1, the utility model provides a make-up tool 1000, by using the tool with the structure, sediments in a pipe column can be washed and drilled, and successful make-up is realized, so that the fishing treatment efficiency is improved.

Specifically, the make-up tool 1000 comprises an upper joint 100, an outer shell 200, a make-up head 300, an elastic member 400 and a centralizing pipe 500, wherein the bottom end of the centralizing pipe 500 is provided with a milling head 501 for milling sediments in a fish.

The top end of the upper joint 100 can be connected with a drilling tool, specifically, the inner wall of the top end of the upper joint 100 is provided with an internal thread, and is screwed with an external thread on the drilling tool, so as to be convenient for disassembly and assembly.

Both ends of the outer housing 200 are connected to the bottom end of the upper joint 100 and the top end of the opposite buckle 300, respectively, specifically, the top end of the outer housing 200 is connected to the bottom end of the upper joint 100, and the bottom end of the outer housing 200 is connected to the top end of the opposite buckle 300.

The centralizing pipe 500 is packaged in the outer shell 200, the outer wall of the centralizing pipe 500 is in circumferential transmission connection with the inner wall of the outer shell 200, and the centralizing pipe 500 can slide along the radial direction of the centralizing pipe 500, namely, the outer shell 200 only limits the radial movement of the outer shell 200 and the rotation of the outer shell 200, and does not limit the axial movement of the outer shell 200 along the centralizing pipe 500.

The bottom end of the centralizing pipe 500 extends out of the opposite buckle head 300, i.e. the milling head 501 extends out of the opposite buckle head 300. The inner wall of the outer shell 200 is provided with a step 201, the top end of the centering pipe 500 is provided with a convex edge 502 positioned above the step 201, the elastic part 400 in a compressed state is sleeved outside the centering pipe 500, and two ends of the elastic part 400 are respectively abutted against the convex edge 502 and the step 201, so that under the action of the elastic part 400, the top end of the centering pipe 500 is abutted against the bottom end of the upper joint 100 in a limiting manner.

The elastic member 400 is any device capable of achieving compression, such as a spring.

When the buckling tool 1000 is used, an upper connector 100 of the buckling tool 1000 is connected with a drilling tool and is put into a well, a pump is started above the top of a fish, water acts on a centering pipe 500, an elastic part 400 is compressed downwards, the centering pipe 500 extends downwards, the drilling tool is rotated and put downwards, a milling head 501 at the bottom end of the centering pipe 500 contacts sediment in a fish, and the torque of the drilling tool is transmitted to the centering pipe 500 through an outer shell 200, so that the sediment in the fish is milled; after the drilling and milling reaches the required length, the well is washed to take out the drilling and milling object; then, the pump is stopped, the righting pipe 500 moves upwards to reset under the action of the restoring force of the elastic piece 400, the righting effect can be achieved, the butt-buckling can not be influenced by the fact that a blockage props against the righting pipe during butt-buckling, the drilling tool is lowered, and the butt-buckling is achieved through the butt-buckling head 300 and the underground fish thread. Namely, the make-up tool 1000 provided by the utility model can be used for drilling sediments in a tubular column, so that successful make-up is realized, and the fishing treatment efficiency is improved.

In some embodiments, the outer case 200 includes a connection sleeve 202 and a lower joint 203, a top end of the connection sleeve 202 is connected with a bottom end of the upper joint 100, a top end of the lower joint 203 is connected with a bottom end of the connection sleeve 202, and a step 201 is provided on an inner wall of the lower joint 203. The step 201 is provided on the inner wall of the lower joint 203 to facilitate the installation of the centralizer tube 500.

The step 201 is integrally connected with the lower joint 203, or detachably connected with the lower joint 203 by screws or the like, and the connection form of the step 201 and the lower joint 203 is not limited.

Further, the utility model specifically discloses that an external thread is arranged on the outer wall of the bottom end of the upper joint 100, an internal thread connected with the external thread of the upper joint 100 is arranged on the inner wall of the top end of the connecting sleeve 202, and the inner wall of the upper joint 100 extends out of the inner wall of the connecting sleeve 202 towards the direction close to the axis of the connecting sleeve 202 to form a limiting boss 101 for limiting the centralizing tube 500.

In order to beautify the appearance, the utility model discloses that the outer wall of the connecting sleeve 202 is flush with the outer wall of the upper joint 100 when the connecting sleeve 202 and the upper joint 100 are installed in place.

Furthermore, the utility model specifically discloses that the outer wall of the bottom end of the connecting sleeve 202 is provided with an external thread, and the inner wall of the top end of the lower joint 203 is provided with an internal thread connected with the external thread of the connecting sleeve 202.

For aesthetic reasons, the present invention discloses that the outer wall of the lower fitting 203 is flush with the outer wall of the connection sleeve 202 after the lower fitting 203 and the connection sleeve 202 are installed in place.

In some embodiments, one of the inner wall of the connection sleeve 202 and the outer wall of the centralizer 500 is provided with a key, and the other is provided with a keyway matching the key.

Taking the example that the inner wall of the connecting sleeve 202 is provided with the key grooves and the outer wall of the centering tube 500 is provided with the keys, in order to realize the stable transmission of the connecting sleeve 202 and the centering tube 500, the utility model discloses that the number of the key grooves and the number of the keys are equal, the key grooves are in one-to-one correspondence and are all a plurality of, the key grooves are annularly and uniformly distributed on the inner wall of the connecting sleeve 202, and the keys are annularly and uniformly distributed on the outer wall of the centering tube 500. As shown in fig. 2, the number of keyways and keys is 4-6. The number of the key grooves and the keys is not limited to 4 to 6, and may be increased or decreased according to actual needs.

Further, the present invention discloses that the key groove extends from the internal thread at the top end of the connecting sleeve 202 to the bottom end of the connecting sleeve 202, and the key extends from the top end of the ledge 502 to the bottom end of the ledge 502.

In some embodiments, an external thread is formed on an outer wall of the top end of the opposite buckle 300, and an internal thread connected with the external thread of the opposite buckle 300 is formed on an inner wall of the bottom end of the connecting sleeve 202, so that the connection between the opposite buckle 300 and the connecting sleeve 202 is facilitated.

In some embodiments, the inner wall of the step 201 and the outer wall of the centralizer tube 500 are sealed by a seal 600 to enable encapsulation of the outer housing 200 and the centralizer tube 500.

Further, the utility model specifically discloses that the inner wall of the step 201 is provided with a sealing groove for accommodating the sealing element 600. The number of the seal grooves 600 may be set according to specific needs, and is not limited to 1.

In some embodiments, the centralizing tube 500 has a water hole in the interior for circulating fluid, and has a large diameter at the upper end of the exterior, a small diameter at the middle, and a chamfer at the lower end, i.e., the milling head 501 gradually decreases in diameter from the top end of the milling head 501 to the bottom end of the milling head 501.

On the one hand, the milling head 501 has a guiding function, so that fish can be conveniently introduced during buckling, and on the other hand, the milling head 501 can conveniently drill the fish.

Further, the utility model specifically discloses that the outer wall of the milling head 501 is provided with a hard alloy layer 503. Specifically, the hard alloy layer 503 is welded on the outer wall of the milling head 501, so that the sediment in the inner cavity of the fish can be cleaned conveniently, and the butt-joint fishing can be realized.

When the fishing tool is assembled, firstly, the sealing element 600 is arranged in the sealing groove of the lower joint 203, then, the lower joint 203 is connected to the bottom end of the connecting sleeve 202, the spring is placed into the connecting sleeve 202 from the top end of the connecting sleeve 202 and is seated on the step 201 of the lower joint 203, the milling head 501 of the centering pipe 500 penetrates through the spring and the lower joint 203, the key at the top end of the centering pipe 500 enters the key groove of the connecting sleeve 202 to compress the spring, then, the upper joint 100 is connected with the connecting sleeve 202, finally, the butt-buckling head 300 is sleeved on the centering pipe 500 and is connected with the lower joint 203, and the tool is assembled completely.

When the fishing tool is in operation, the opposite-buckling tool 1000 is connected with a drilling tool and is put into a well, specifically, an upper connector 100 of the opposite-buckling tool 1000 is connected with the drilling tool and is put into the well, a pump is started above the top of a fish, a hydraulic force acts on the centering pipe 500 to compress a spring downwards, the centering pipe 500 extends downwards, the drilling tool is rotationally put down, hard alloy at the bottom end of the centering pipe 500 contacts sediment in a fish, the torque of the drilling tool is transmitted to the centering pipe 500 through a key groove in the connecting sleeve 202 and a key on the centering pipe 500, so that the sediment in the fish is drilled and milled, after the drilling and milling reaches a required length, the well is washed to take out the drilling and milling object, then the pump is stopped, the centering pipe 500 is reset under the action of the spring, not only can be used for centering, but also the object cannot be jacked during opposite-buckling, the opposite-buckling is influenced, the drilling tool is put down, and the opposite-buckling is realized by using the opposite-buckling head 300 and the threads of the fish in the well, so that the fishing tool is successfully buckled, and the efficiency is improved.

It should be noted that the terms indicating the directions such as top, bottom, up, down, etc. in the present document are set in the directions of fig. 1 in the specification, and are used for convenience of description only and have no other specific meanings.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A make-up tool is characterized by comprising an upper joint, an outer shell, a make-up head, an elastic piece and a centering pipe with a milling head at the bottom end;

2. The tool of claim 1, wherein the outer housing comprises a connection sleeve and a lower joint;

3. The tool according to claim 2, wherein an external thread is formed on the outer wall of the bottom end of the upper joint, an internal thread connected with the external thread of the upper joint is formed on the inner wall of the top end of the connecting sleeve, and the inner wall of the upper joint extends out of the inner wall of the connecting sleeve in the direction close to the axis of the connecting sleeve to form a limiting boss for limiting the centering tube.

4. The tool as claimed in claim 2, wherein the outer wall of the bottom end of the connecting sleeve is provided with an external thread, and the inner wall of the top end of the lower joint is provided with an internal thread connected with the external thread of the connecting sleeve.

5. The tool of claim 2, wherein one of the inner wall of the connecting sleeve and the outer wall of the centralizing tube is provided with a key, and the other is provided with a key slot matched with the key.

6. The tool as claimed in claim 2, wherein the outer wall of the top end of the opposite buckling head is provided with an external thread, and the inner wall of the bottom end of the connecting sleeve is provided with an internal thread connected with the external thread of the opposite buckling head.

7. The tool of claim 1, wherein the inner wall of the step and the outer wall of the centralizer tube are sealed by a seal.

8. The tool of claim 7, wherein the step defines a seal groove on an inner wall thereof for receiving the seal.

9. The tool of any one of claims 1-8, wherein the milling head has a decreasing diameter in a direction from a top end to a bottom end of the milling head.

10. The tool of claim 9, wherein the outer wall of the milling head is provided with a layer of cemented carbide.