CN215949429U - Metal sealing dissoluble bridge plug - Google Patents
Metal sealing dissoluble bridge plug Download PDFInfo
- Publication number
- CN215949429U CN215949429U CN202122248008.8U CN202122248008U CN215949429U CN 215949429 U CN215949429 U CN 215949429U CN 202122248008 U CN202122248008 U CN 202122248008U CN 215949429 U CN215949429 U CN 215949429U
- Authority
- CN
- China
- Prior art keywords
- cone
- slip
- pull rod
- conical
- sleeved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 230000000694 effects Effects 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Landscapes
- Closures For Containers (AREA)
Abstract
The utility model provides a metal sealing dissoluble bridge plug.A pull rod is sequentially provided with a cone, a metal sealing element, a bearing block, a slip, a base and a pull cap; the pull rod is positioned at the axis, the upper part of the pull rod is connected with a setting tool, the lower part of the pull rod is connected with a pull cap through threads, the cone and the slip are sleeved on the pull rod, and the base is sleeved on the pull cap; the lower outer end part of the cone is a conical surface; the upper inner surface of the metal sealing element is a conical surface and is sleeved on the conical surface of the cone, and the lower inner surface of the metal sealing element is a cylinder; the upper inner end part of the slip is a conical hole, the upper end surface is uniformly provided with a plurality of grooves, and the grooves are sleeved on the lower outer end surface of the cone; the bearing blocks are uniformly distributed in the grooves on the upper end surface of the slip, the inner surfaces of the bearing blocks are conical surfaces and are sleeved on the conical surfaces of the cone, and the outer surfaces of the bearing blocks are of columnar structures and are matched and assembled with the lower inner surface of the metal sealing element. The utility model has protection effect on the sealing ring under high pressure state, and the sealing effect is good; the parts of the tool are reduced, the size of the tool is shortened, and the tool is favorable for running in.
Description
Technical Field
The embodiment of the utility model relates to the technical field of oil and gas field development, in particular to a metal sealing dissolvable bridge plug.
Background
At present, soluble rubber is mostly adopted to be processed into sealing materials for the soluble bridge plugs used in the market. The dissoluble rubber material is characterized in that when the temperature of an oil well is high, the rubber strength is quickly lost, the sealing capability is reduced, and meanwhile, the dissoluble capability is reduced, the dissolution time is long or the dissolution is not carried out in a low-temperature state. In addition, the rubber-sealed bridge plug has a complex structure, more parts and long size, increases the cost of the tool and is not beneficial to running the tool.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provide a metal-sealed soluble bridge plug which is simple in structure, few in parts, short in length and reliable in sealing.
The specific technical scheme is as follows:
a metal sealing dissoluble bridge plug comprises a pull rod, wherein a cone, a metal sealing element, a bearing block, a slip, a base and a pull cap are sequentially arranged on the pull rod;
the pull rod is positioned at the axis, the upper part of the pull rod is connected with a setting tool, the lower part of the pull rod is connected with a pull cap through threads, the cone and the slip are sleeved on the pull rod, and the base is sleeved on the pull cap;
the cone is of a cylindrical structure, and the lower outer end part of the cone is a conical surface;
the metal sealing element is of a cylindrical structure, the upper inner surface of the metal sealing element is a conical surface and is sleeved on the conical surface of the cone, and the lower inner surface of the metal sealing element is a cylinder;
the slip is of a cylindrical structure, the upper inner end part of the slip is a conical hole, the upper end surface of the slip is uniformly provided with a plurality of grooves, and the slip is sleeved on the lower outer end surface of the cone;
the bearing blocks are uniformly distributed in the grooves on the upper end surface of the slip, the inner surfaces of the bearing blocks are conical surfaces and are sleeved on the conical surfaces of the cone, and the outer surfaces of the bearing blocks are of columnar structures and are matched and assembled with the lower inner surface of the metal sealing element.
The lower end of the conical surface on the cone is processed with an external locking taper thread with the length of 10-40mm, the conical hole of the slip is provided with an internal locking taper thread, and the internal locking taper thread is meshed with the external locking taper thread.
And uniformly and mutually intersecting and cutting a plurality of notches from two end surfaces of the slip along the axial direction, wherein each notch is 5-10mm away from the end surface, and a round hole is radially formed from the outer cylindrical surface at the tail end of each notch.
The number of the grooves on the upper end surface of the slip is consistent with that of the notches, and the radial direction of the notches is consistent with that of the grooves.
A boss is processed on the inner surface of the base and is positioned between the pull rod and the pull cap during assembly.
The utility model has the beneficial effects that:
1. the lower part of the metal sealing element is additionally provided with the bearing block, so that the sealing capability and the adaptability of the bridge plug are improved;
2. the slips are designed into a whole, so that the processing difficulty of parts is reduced, and the anchoring reliability is improved;
3. the self-locking structure design of the slips and the cone reduces the structure of the bridge plug and reduces the tool cost;
4. the traditional bridge plug is set by shearing pins or shearing threads, the bridge plug is set by shearing rings, the setting force is more accurate, the structure is simpler,
5. through new structural design, the bridge plug is short in size and large in inner drift diameter, so that the running-in of tools is facilitated, and meanwhile, a large production channel can be provided and the dissolution is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the expanded vertebral body;
FIG. 3 is a schematic structural view of the slips and the bearing block;
fig. 4 is a schematic structural diagram of the base.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1, the metal sealing dissoluble bridge plug comprises a pull rod 1, wherein a cone 2, a metal sealing element 3, a bearing block 4, a slip 5, a base 6 and a pull cap 7 are sequentially arranged on the pull rod 1;
the pull rod 1 is positioned at the axis, the upper part of the pull rod 1 is connected with a setting tool, the lower part of the pull rod 1 is connected with a pull cap 7 through threads, the cone 2 and the slips 5 are sleeved on the pull rod 1, and the base 6 is sleeved on the pull cap 7;
the cone 2 is of a cylindrical structure, and the lower outer end part of the cone is a conical surface 8;
the metal sealing element 3 is of a cylindrical structure, the upper inner surface of the metal sealing element is a conical surface and is sleeved on the conical surface 8 of the cone 2, and the lower inner surface of the metal sealing element is a cylinder;
the slips 5 are of a cylindrical structure, the upper inner end part of the slips is a conical hole, the upper end face of the slips is uniformly provided with a plurality of grooves 11, and the slips are sleeved on the lower outer end face of the cone 2;
the bearing blocks 4 are uniformly distributed in the grooves 11 on the upper end surface of the slips 5, the inner surfaces of the bearing blocks 4 are conical surfaces and are sleeved on the conical surfaces 8 of the cone 2, and the outer surfaces of the bearing blocks 4 are of columnar structures and are matched and assembled with the lower inner surface of the metal sealing element 3.
Referring to fig. 2, the lower end of the conical surface 8 on the cone 2 is provided with an external locking taper thread 9 with the length of 10-40mm, the conical hole of the slip 5 is provided with an internal locking taper thread 10, and the internal locking taper thread 10 is meshed with the external locking taper thread 9.
Referring to fig. 3, a plurality of cuts 12 are evenly and mutually intersected along the axial direction from two end faces of the slip 5, each cut 12 is 5-10mm away from the end face, and a round hole 13 is radially arranged from the outer cylindrical face at the tail end of each cut 12.
The grooves 11 on the upper surface of the slips 5 correspond in number to the notches 12, and the radial orientation of the notches 12 corresponds to the radial orientation of the grooves 11.
Referring to fig. 4, the inner surface of the base 6 is provided with a boss 14, and the boss 14 is positioned between the pull rod 1 and the pull cap 7 during assembly.
The upper end part of the pull rod 1 is connected with a setting tool, the lower end part of the pull rod 1 is connected with a pulling cap 7, and after the bridge plug is set, the pull rod 1 and the pulling cap 11 are pulled out of the bridge plug.
The pull rod 1 and the pull cap 7 are made of insoluble metal materials, and the cone 2, the metal sealing element 3, the bearing block 4, the slips 5 and the base 6 are made of soluble metal materials.
After the bridge plug is set, the pull rod 1 and the pull cap 7 are drawn out of the bridge plug, other components are thrown in the well to seal the fractured intervals, the components thrown in the well are all made of magnesium-based dissolvable metal materials, and after fracturing is completed, the components are automatically dissolved.
Claims (5)
1. The metal-sealed dissolvable bridge plug is characterized by comprising a pull rod (1), wherein a cone (2), a metal sealing element (3), a bearing block (4), a slip (5), a base (6) and a pull cap (7) are sequentially arranged on the pull rod (1);
the pull rod (1) is positioned at the axis, the upper part of the pull rod (1) is connected with a setting tool, the lower part of the pull rod (1) is connected with a pull cap (7) through threads, the cone (2) and the slips (5) are sleeved on the pull rod (1), and the base (6) is sleeved on the pull cap (7);
the cone (2) is of a cylindrical structure, and the lower outer end part of the cone is a conical surface (8);
the metal sealing element (3) is of a cylindrical structure, the upper inner surface of the metal sealing element is a conical surface and is sleeved on the conical surface (8) of the cone (2), and the lower inner surface of the metal sealing element is a cylinder;
the slip (5) is of a cylindrical structure, the upper inner end part of the slip is a conical hole, the upper end face of the slip is uniformly provided with a plurality of grooves (11), and the slip is sleeved on the lower outer end face of the cone (2);
the bearing blocks (4) are uniformly distributed in grooves (11) on the upper end face of the slip (5), the inner surface of each bearing block (4) is a conical surface and is sleeved on the conical surface (8) of the cone (2), and the outer surface of each bearing block (4) is of a columnar structure and is matched and assembled with the lower inner surface of the metal sealing element (3).
2. The metal-sealing dissolvable bridge plug of claim 1, wherein: the lower end of the conical surface (8) on the cone (2) is provided with an external locking conical thread (9) with the processing length of 10-40mm, an internal locking conical thread (10) is arranged on the conical hole of the slip (5), and the internal locking conical thread (10) is meshed with the external locking conical thread (9).
3. The metal-sealing dissolvable bridge plug of claim 1, wherein: a plurality of notches (12) are uniformly and mutually intersected and cut along the axial direction from two end faces of the slip (5), each notch (12) is 5-10mm away from the end face, and a round hole (13) is radially formed in the tail end of each notch (12) from the outer cylindrical surface.
4. A metal sealing dissolvable bridge plug according to claim 3, wherein: the number of the grooves (11) on the upper end surface of the slip (5) is consistent with that of the notches (12), and the radial position of the notches (12) is consistent with that of the grooves (11).
5. The metal-sealing dissolvable bridge plug of claim 1, wherein: the inner surface of the base (6) is provided with a boss (14), and the boss (14) is positioned between the pull rod (1) and the pull cap (7) during assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122248008.8U CN215949429U (en) | 2021-09-16 | 2021-09-16 | Metal sealing dissoluble bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122248008.8U CN215949429U (en) | 2021-09-16 | 2021-09-16 | Metal sealing dissoluble bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215949429U true CN215949429U (en) | 2022-03-04 |
Family
ID=80426267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122248008.8U Active CN215949429U (en) | 2021-09-16 | 2021-09-16 | Metal sealing dissoluble bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215949429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719253A (en) * | 2021-09-16 | 2021-11-30 | 重庆贝斯特石油科技有限公司 | Metal sealing dissoluble bridge plug |
| CN114876407A (en) * | 2022-06-21 | 2022-08-09 | 重庆昱华新材料科技有限公司 | Metal sealing dissoluble bridge plug free of ball throwing |
-
2021
- 2021-09-16 CN CN202122248008.8U patent/CN215949429U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719253A (en) * | 2021-09-16 | 2021-11-30 | 重庆贝斯特石油科技有限公司 | Metal sealing dissoluble bridge plug |
| CN114876407A (en) * | 2022-06-21 | 2022-08-09 | 重庆昱华新材料科技有限公司 | Metal sealing dissoluble bridge plug free of ball throwing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215949429U (en) | Metal sealing dissoluble bridge plug | |
| CN108412475B (en) | Fracturing bridge plug | |
| CN113586005A (en) | Pressure expansion type dissolvable bridge plug | |
| CN106894787A (en) | A kind of single deck tape-recorder watt big orifice bridging plug and its set method | |
| CN103573211B (en) | A kind of composite bridge plug and central canal thereof | |
| CN204060749U (en) | A kind of constant resistance and large deformation anchor rod/anchor cable | |
| CN105971556B (en) | One kind can degradable metal bridge plug | |
| CN104612626A (en) | Bridge plug with large drift diameter | |
| CN219754505U (en) | Expansion sealing metal sealing soluble bridge plug | |
| CN110017117A (en) | Soluble bridge plug | |
| CN112901113A (en) | Full soluble fracturing bridge plug with novel structure | |
| CN114876407A (en) | Metal sealing dissoluble bridge plug free of ball throwing | |
| CN109931030B (en) | A controllable dissolving cementing plug | |
| CN111677478A (en) | A fully soluble bridge plug | |
| CN111677477A (en) | Novel single-slip ball seat and bridge plug and preparation method thereof | |
| CN113719253A (en) | Metal sealing dissoluble bridge plug | |
| CN215949428U (en) | Pressure expansion type dissolvable bridge plug | |
| CN217538649U (en) | Metal sealing dissoluble bridge plug free of ball throwing | |
| CN215949430U (en) | Ultrashort dissoluble bridge plug | |
| CN112647891A (en) | Full-soluble bridge plug | |
| CN103742092A (en) | Expansion Tubular Completion Tools | |
| CN210068075U (en) | A controllable dissolution cementing rubber plug | |
| CN104975835A (en) | Elastic fracturing ball seat | |
| CN111636845B (en) | A rapidly degradable sealing structure and its application method | |
| CN212671679U (en) | But quick degradation's seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |