CN216665565U - Fixed-point temporary plugging soluble bridge plug for squeezing - Google Patents
Fixed-point temporary plugging soluble bridge plug for squeezing Download PDFInfo
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- CN216665565U CN216665565U CN202220291105.7U CN202220291105U CN216665565U CN 216665565 U CN216665565 U CN 216665565U CN 202220291105 U CN202220291105 U CN 202220291105U CN 216665565 U CN216665565 U CN 216665565U
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Abstract
The utility model provides a fixed-point temporary plugging soluble bridge plug for squeezing, which comprises a setting tool and a plugging mechanism, wherein the setting tool comprises a fixed setting pipe, an upper joint, a plug, a setting piston and a guide pipe; the plugging mechanism comprises a plugging outer cylinder, a fixed sleeve, a sliding pin, a plugging plug, a pressure balance valve and a circulating sleeve; the upper connector is arranged at one end of the fixed setting pipe, the bridge plug pipe is driven to be inserted into the fixed setting pipe by rotating the plugging outer cylinder, one side of the push cylinder is extruded, so that the push cylinder drives the spring to compress, then the fixed setting pipe and the plugging outer cylinder are lowered to preset positions through the oil pipe, then the plugging mechanism is sealed and released by pressing the setting tool to generate thrust, and then the pressure balance valve is opened to carry out extrusion injection operation, so that the occurrence of the condition of setting in advance is avoided, the working efficiency is improved, the plugging plug is made of degradable materials, and the application range of the underground plugging tool is enlarged.
Description
Technical Field
The utility model relates to the technical field of bridge plugs, in particular to a fixed-point temporary plugging soluble bridge plug for squeezing.
Background
The underground plugging tool is mainly used for temporary and permanent plugging or secondary well cementation of an oil layer, a gas layer and a water layer, cement slurry is squeezed into a well section needing to be plugged in an annular space or into cracks and pores of a stratum through the soluble fixed-point plugging tool, and the purposes of plugging and leakage repairing are achieved;
traditional shutoff instrument in pit takes place the condition of setting in advance easily when using to lead to can't going into well work, and then influenced work efficiency, and dissolve work usually after the shutoff is accomplished, thereby influenced the application scope of shutoff instrument in the pit, for this reason, propose a squeeze with fixed point temporarily stifled soluble bridge plug.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a fixed-point temporary plugging soluble bridge plug for squeeze injection to solve or alleviate the technical problems in the prior art, and to provide at least a beneficial option.
The technical scheme of the embodiment of the utility model is realized as follows: a fixed-point temporary plugging soluble bridge plug for squeeze injection comprises a setting tool and a plugging mechanism, wherein the setting tool comprises a fixed setting pipe, an upper joint, a plug, a setting piston and a guide pipe;
the plugging mechanism comprises a plugging outer cylinder, a fixed sleeve, a sliding pin, a plugging plug, a pressure balance valve and a circulating sleeve;
the utility model discloses a sealing device, including fixed seat pipe, top connection, the inside wall sliding connection of top connection has the bridge stopper pipe, the one end fixedly connected with shutoff urceolus of bridge stopper pipe, the mid-mounting of shutoff urceolus has the pressure balance valve, the lateral wall mid-mounting of shutoff urceolus has a shutoff stopper, two circulation covers of the inside wall symmetry fixedly connected with of shutoff urceolus, the inside wall sliding connection of fixed seat pipe has the seat piston, one side fixedly connected with stand pipe of seat piston, the lateral wall sliding connection of stand pipe has a section of thick bamboo that pushes away.
Preferably, the inner side wall of the fixed setting pipe is provided with an insertion pipe assembly, the outer side wall of the push cylinder is connected with the inner side wall of the insertion pipe assembly in a sliding manner, and the outer side wall of the bridge plug pipe is connected with the inner side wall of the insertion pipe assembly in a threaded manner; the push cylinders moving in pairs are positioned by the cannula assembly.
Further preferably, one side of the inner side wall of the fixed setting pipe is fixedly connected with a spring, and one end of the spring is fixedly connected with one end of the push cylinder; the spring is driven to compress by the moving push cylinder.
Preferably, one end of the plugging outer cylinder is in threaded connection with a fixed sleeve, and a connecting column is mounted on the inner side wall of the fixed sleeve; and the connecting column is fixedly installed through the fixing sleeve.
Preferably, one end of the connecting column is fixedly connected with a connecting rod, and one end of the connecting rod is provided with a plug; and a supporting force is provided for one side of the plug through the connecting rod.
Preferably, the outer side wall of the connecting rod is uniformly and fixedly connected with a sealing ring, and the inner side wall of the fixed sleeve is in threaded connection with a sliding pin; the fixed sleeve and the plugging outer cylinder are fixed by inserting the rotating sliding pin into the fixed sleeve.
Due to the adoption of the technical scheme, the embodiment of the utility model has the following advantages: according to the utility model, the bridge plug pipe is driven to be inserted into the fixed setting pipe by rotating the plugging outer cylinder, one side of the push cylinder is extruded, so that the push cylinder drives the spring to compress, then the fixed setting pipe and the plugging outer cylinder are lowered to preset positions through the oil pipe, then the plugging mechanism is sealed and released by pressing the setting tool to generate thrust, and then the pressure balance valve is opened, so that the squeezing operation can be carried out, thereby avoiding the occurrence of the condition of setting in advance, improving the working efficiency, and the plugging plug is made of degradable materials, so that the application range of the underground plugging tool is increased.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic cross-sectional structural view of the fixed setting pipe of the present invention;
fig. 3 is a front structural schematic diagram of the plugging outer cylinder.
Reference numerals are as follows: 1. setting a tool; 2. a plugging mechanism; 101. fixing the setting pipe; 102. an upper joint; 103. a plug; 104. setting a piston; 105. a guide tube; 201. plugging the outer cylinder; 202. fixing the sleeve; 203. a slide pin; 204. blocking; 205. a pressure balancing valve; 206. a circulating sleeve; 41. an intubation assembly; 42. a spring; 43. a push cylinder; 44. a seal ring; 45. a connecting rod; 46. a bridge plug tube; 47. connecting columns.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, the embodiment of the present invention provides a fixed-point temporary plugging soluble bridge plug for squeeze injection, which includes a setting tool 1 and a plugging mechanism 2, wherein the setting tool 1 includes a fixed setting pipe 101, an upper joint 102, a plug 103, a setting piston 104 and a guide pipe 105;
the plugging mechanism 2 comprises a plugging outer cylinder 201, a fixed sleeve 202, a sliding pin 203, a plugging plug 204, a pressure balance valve 205 and a circulating sleeve 206;
the top connection 102 is installed to the one end of fixed seat seal pipe 101, the inside wall sliding connection of top connection 102 has bridge plug pipe 46, the one end fixedly connected with shutoff urceolus 201 of bridge plug pipe 46, the mid-mounting of shutoff urceolus 201 has pressure balance valve 205, the outside wall mid-mounting of shutoff urceolus 201 has the shutoff stopper 204, two circulation cover 206 of the inside wall symmetry fixedly connected with of shutoff urceolus 201, the inside wall sliding connection of fixed seat seal pipe 101 has seat seal piston 104, one side fixedly connected with stand pipe 105 of seat seal piston 104, the outside wall sliding connection of stand pipe 105 has a section of thick bamboo 43 that pushes away.
In one embodiment, the cannula assembly 41 is mounted to the inner sidewall of the fixed setting tube 101, the outer sidewall of the pusher 43 is slidably connected to the inner sidewall of the cannula assembly 41, and the outer sidewall of the bridge plug tube 46 is threadedly connected to the inner sidewall of the cannula assembly 41; the positioning of the moving pusher 43 is performed by the cannula assembly 41, and the cannula assembly 41 is connected by rotating the bridge tube 46.
In one embodiment, a spring 42 is fixedly connected to one side of the inner side wall of the fixed setting pipe 101, and one end of the spring 42 is fixedly connected to one end of the pushing cylinder 43; the spring 42 is compressed by the moving pusher 43.
In one embodiment, one end of the plugging outer cylinder 201 is connected with a fixed sleeve 202 in a threaded manner, and the inner side wall of the fixed sleeve 202 is provided with a connecting column 47; the fixing sleeve 202 is used for installing and fixing the connecting column 47.
In one embodiment, one end of the connecting column 47 is fixedly connected with a connecting rod 45, and one end of the connecting rod 45 is provided with a plug 103; a supporting force is provided to one side of the choke plug 103 by the connecting rod 45.
In one embodiment, the outer side wall of the connecting rod 45 is uniformly and fixedly connected with a sealing ring 44, and the inner side wall of the fixed sleeve 202 is in threaded connection with a sliding pin 203; the slide pin 203 is rotated and inserted into the fixing sleeve 202, thereby fixing the fixing sleeve 202 and the cap outer cylinder 201.
In one embodiment, the body and the sealing part are made of degradable materials, residues are almost not left after dissolution, the opening and closing of the pressure balance valve 205 are controlled by the ground, and the pressure balance valve is more convenient and reliable, has high compressive strength and can meet various operations of medium and deep wells.
The utility model is in operation: the bridge plug pipe 46 is driven to move by moving the plugging outer cylinder 201, the moving bridge plug pipe 46 is inserted into the fixed setting pipe 101, then the bridge plug pipe 46 is guided by the upper joint 102, then the bridge plug pipe 46 is rotated to extrude the push cylinder 43 through the cannula assembly 41, then the spring 42 is pushed by the extruded push cylinder 43 to be compressed, then the push cylinder 43 is driven to work through the guide pipe 105, then the push cylinder 43 is positioned through the cannula assembly 41, thereby completing the installation work of the downhole plugging tool, then the downhole plugging tool is connected with the downhole plugging tool through the fixed setting pipe 101, the downhole plugging tool is required to be uniform and stable, the sudden stop and the sudden placement are forbidden, the drilling and the sliding drilling are stopped, meanwhile, the position of the liquid level in the well is judged in advance, when the tool is in contact with the liquid level, the tool is required to be slow down, when the tool passes through a deflecting point, the casing is suspended, the casing is required to be slow down at the uniform speed when the casing is changed, the downhole plugging tool is put into the well at a preset position, recording the hanging weight of the pipe column, setting the well mouth and throwing
The steel ball, wait the ball and take a seat the back the little discharge is suppressed, stabilize 5 minutes at 5, 10, 15, 20MPa, guarantee to set up completely, after setting up, suppress to the oil pipe and test and seal and absorb water, observe whether the sleeve pipe overflows, then begin the squeeze operation, after the construction finishes lift the tubular column to the weight of hanging and add about 20kN, the tubular column of corotation is more than 10 circles, realize the 2 hands-off of plugging mechanism to the recovery original load, then open pressure balance valve 205, can carry out the squeeze operation, this device has not only avoided the condition emergence of setting up in advance, has improved work efficiency, and can dissolve by oneself, increased the application scope of plugging tool in the pit.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a crowded notes are with soluble bridging plug of fixed point temporary plugging, includes setting instrument (1) and shutoff mechanism (2), its characterized in that: the setting tool (1) comprises a fixed setting pipe (101), an upper joint (102), a choke plug (103), a setting piston (104) and a guide pipe (105);
the plugging mechanism (2) comprises a plugging outer cylinder (201), a fixed sleeve (202), a sliding pin (203), a plugging plug (204), a pressure balance valve (205) and a circulating sleeve (206);
the utility model discloses a sealing device, including fixed seat pipe (101), top connection (102) is installed to the one end of fixed seat pipe (101), the inside wall sliding connection of top connection (102) has bridge stopper pipe (46), the one end fixedly connected with shutoff urceolus (201) of bridge stopper pipe (46), the mid-mounting of shutoff urceolus (201) has pressure balance valve (205), the lateral wall mid-mounting of shutoff urceolus (201) has a shutoff stopper (204), two circulation cover (206) of the inside wall symmetry fixedly connected with of shutoff urceolus (201), the inside wall sliding connection of fixed seat pipe (101) has a seat piston (104), sit one side fixedly connected with stand pipe (105) of sealing piston (104), the outside wall sliding connection of stand pipe (105) has a section of thick bamboo (43) of pushing away.
2. The squeeze-casting site-specific temporary plugging soluble bridge plug according to claim 1, wherein: an inserting pipe assembly (41) is installed on the inner side wall of the fixed setting pipe (101), the outer side wall of the push cylinder (43) is connected to the inner side wall of the inserting pipe assembly (41) in a sliding mode, and the outer side wall of the bridge plug pipe (46) is connected to the inner side wall of the inserting pipe assembly (41) in a threaded mode.
3. The squeeze-casting site-specific temporary plugging soluble bridge plug according to claim 1, wherein: the fixed setting pipe (101) is fixedly connected with a spring (42) on one side of the inner side wall, and one end of the spring (42) is fixedly connected with one end of the push cylinder (43).
4. The squeeze-casting site-specific temporary plugging soluble bridge plug according to claim 1, wherein: one end of the plugging outer cylinder (201) is in threaded connection with a fixed sleeve (202), and a connecting column (47) is installed on the inner side wall of the fixed sleeve (202).
5. The squeeze-casting site-specific temporary plugging soluble bridge plug according to claim 4, wherein: the one end fixedly connected with connecting rod (45) of spliced pole (47), end cap (103) are installed to the one end of connecting rod (45).
6. The squeeze-injection site-specific temporary plugging soluble bridge plug according to claim 5, characterized in that: the outer side wall of the connecting rod (45) is uniformly and fixedly connected with a sealing ring (44), and the inner side wall of the fixed sleeve (202) is in threaded connection with a sliding pin (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220291105.7U CN216665565U (en) | 2022-02-09 | 2022-02-09 | Fixed-point temporary plugging soluble bridge plug for squeezing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220291105.7U CN216665565U (en) | 2022-02-09 | 2022-02-09 | Fixed-point temporary plugging soluble bridge plug for squeezing |
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| CN216665565U true CN216665565U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220291105.7U Active CN216665565U (en) | 2022-02-09 | 2022-02-09 | Fixed-point temporary plugging soluble bridge plug for squeezing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044343A (en) * | 2023-02-20 | 2023-05-02 | 杨帆 | Double-seal single-clamp type soluble degradable quick drilling and extrusion injection process |
-
2022
- 2022-02-09 CN CN202220291105.7U patent/CN216665565U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044343A (en) * | 2023-02-20 | 2023-05-02 | 杨帆 | Double-seal single-clamp type soluble degradable quick drilling and extrusion injection process |
| CN116044343B (en) * | 2023-02-20 | 2024-05-07 | 大庆市亚盛油田技术开发有限公司 | Double-seal single-clamp type soluble degradable quick drilling and extrusion injection process |
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