CN110566156B - Two-way anchoring soluble fracturing bridge plug - Google Patents
Two-way anchoring soluble fracturing bridge plug Download PDFInfo
- Publication number
- CN110566156B CN110566156B CN201910996765.8A CN201910996765A CN110566156B CN 110566156 B CN110566156 B CN 110566156B CN 201910996765 A CN201910996765 A CN 201910996765A CN 110566156 B CN110566156 B CN 110566156B
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- Prior art keywords
- wall
- connector
- central tube
- face
- ring
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- 238000004873 anchoring Methods 0.000 title claims abstract description 28
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 8
- 238000004090 dissolution Methods 0.000 abstract description 7
- 238000012856 packing Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002195 soluble material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/134—Bridging plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/261—Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Bridges Or Land Bridges (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a bidirectional anchoring soluble fracturing bridge plug which is used as a fracturing packing oil layer, is automatically released through dissolution after fracturing is completed without subsequent salvage construction, is connected with a setting tool on the ground, and particularly, the lower end of the setting tool is connected with an internal thread I on the inner wall of the upper end of a connector.
Description
Technical Field
The invention relates to oilfield mechanical equipment, in particular to a bidirectional anchoring soluble fracturing bridge plug.
Background
The fracturing technology has become a common stratum transformation technology in oil and gas development, the large-area application of the fracturing technology is followed by the large-area application of a fracturing bridge plug, the requirements on the bridge plug are also higher and higher, and the bridge plug applied on site at present is divided into three types: 1. a common removable fracturing bridge plug, a second drillable fracturing bridge plug, a third drillable fracturing bridge plug and a soluble bridge plug.
The existing soluble bridge plug is low in material strength due to the limitation of solubility, a one-way anchoring mode is generally adopted, an anchoring material is a ceramic column, and the ceramic column is an insoluble material, so that after construction is completed, the ground cannot be excluded from falling into the bottom of the well, adverse effects on later construction can be produced, and the domestic soluble bridge plug is extremely easy to have the problems of sealing failure in advance and insolubility after pressing, so that the bidirectional anchoring soluble pressure bridge plug is urgently needed at present.
Disclosure of Invention
The present invention is directed to a bi-directionally anchored dissolvable fracturing bridge plug that solves the problems set forth in the background art above.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a two-way anchoring soluble fracturing bridge plug, includes the connector, be provided with first guide slope on the connector, connector upper end inner wall is connected with setting specialized tool, the connector lower extreme cover is established in the outside of center tube, connector lower extreme inboard is provided with first internal thread, just the junction of center tube and connector still is provided with the fixed pin, center tube upper end outside cover is equipped with presses the cap, it is provided with the catch to press cap upper end inside, catch inner wall and center tube upper end outer wall connection, press cap upper end cover to establish in the outside of backing ring, it is provided with second internal thread to press cap upper end inner wall, center tube upper end outside still overlaps and is equipped with the upper slips, upper slips up end and the lower terminal surface butt of pressing the cap, the center tube outside still overlaps and is equipped with the upper cone, upper slips and upper cone butt, the center tube outside still overlaps and is equipped with the upper shroud, the lower end face of the upper cone body is abutted with the upper end face of the upper shield, the outer side of the central tube is also sleeved with an upper protection ring, the lower end face of the upper shield is abutted with the upper end face of the upper protection ring, the outer wall of the central tube is also sleeved with an upper rubber cylinder, a middle rubber cylinder and a lower rubber cylinder in sequence, the upper end face of the upper rubber cylinder is abutted with the lower end face of the upper protection ring, the lower end face of the upper rubber cylinder is abutted with the upper end face of the middle rubber cylinder, a lower slip, a lower cone body, a lower shield, a lower protection ring and a lower rubber cylinder which have the same structures and the same connection modes are symmetrically arranged, the outer side of the lower end of the central tube is sleeved with a lower joint, the outer side of the lower end of the central tube is provided with a first external thread, the outer side of the lower end of the lower joint is provided with a second external thread, the inside of the guide head is provided with a soluble ball, the bidirectional anchoring soluble fracturing bridge plug is internally provided with a liquid flow channel, and the inner wall of the locking ring is in one-way threaded connection with the outer wall of the upper end of the central tube.
As a further scheme of the invention: and the connecting head is provided with an internal thread III for connecting with a special setting tool.
As still further aspects of the invention: the lower extreme of going up the slips is provided with the toper inclined plane one, be provided with a plurality of recess one on the slips outer wall, be provided with a plurality of recess two on the slips inner wall, be provided with a plurality of recess three on the upper shield outer wall, be provided with a plurality of recess four on the outer wall of upper guard ring.
As still further aspects of the invention: the number of the first grooves is seven, the number of the second grooves is seven, the number of the third grooves is twelve, and the number of the fourth grooves is twelve.
As still further aspects of the invention: the outer wall of the upper slip is also provided with unidirectional saw teeth for anchoring, and the upper cone is provided with a conical inclined surface II matched with the conical inclined surface I arranged at the lower end of the upper slip.
As still further aspects of the invention: the sealing device is characterized in that a sealing ring I is arranged between the inner wall of the upper end of the connecting head and the outer wall of the upper end of the central tube, a sealing ring II is arranged between the outer wall of the lower end of the central tube and the inner wall of the upper end of the lower joint, and a sealing ring III is arranged between the outer wall of the lower end of the lower joint and the inner wall of the upper end of the guide head.
As still further aspects of the invention: the first sealing ring, the second sealing ring and the third sealing ring are O-shaped rubber rings.
Compared with the prior art, the invention has the beneficial effects that: this two-way anchoring soluble fracturing bridge plug is for using as fracturing packing oil reservoir, through dissolving by oneself relieving after the fracturing is accomplished, need not to carry out subsequent salvage construction, be connected this two-way anchoring soluble fracturing bridge plug with the setting tool on ground, specifically be with the lower extreme of setting tool and the internal thread one of connector upper end inner wall be connected, because the lower extreme adopts big tapering oblique angle structure, the convenience is gone into the well, avoided going into the well in-process to hinder, the whole structure of instrument totally adopts high strength soluble material, the dissolution rate is high, dissolution time is short, discharge ground along with the liquid stream after the dissolution is accomplished, through setting up sealing washer one, sealing washer two and sealing washer three, make the connection between each part in this two-way anchoring soluble fracturing bridge plug more fastening.
Drawings
FIG. 1 is a schematic structural view of a bi-directionally anchored dissolvable fracturing bridge plug.
Fig. 2 is a schematic illustration of a locking collar connected to a base pipe in a bi-directionally anchored dissolvable frac bridge plug.
FIG. 3 is a schematic illustration of the mating of a first tapered ramp with a second tapered ramp in a bi-directionally anchored soluble fracturing bridge plug.
FIG. 4 is a schematic illustration of the construction of an upper slips in a bi-directionally anchored dissolvable fracturing bridge plug.
Fig. 5 is a schematic structural view of an upper shield in a bi-directionally anchored dissolvable frac bridge plug.
Fig. 6 is a schematic structural view of an upper guard ring in a bi-directionally anchored dissolvable frac bridge plug.
In the figure: 1-connector, 2-sealing ring I, 3-fixed pin, 4-pressure cap, 5-baffle ring, 6-lock ring, 7-upper slip, 8-central tube, 9-upper cone, 10-upper shield, 11-upper protection ring, 12-upper rubber, 13-middle rubber, 14-lower rubber, 15-lower protection ring, 16-lower shield, 17-lower cone, 18-lower slip, 19-sealing ring II, 20-lower connector, 21-sealing ring III, 22-guide head, 23-soluble ball, 24-guide inclined plane, 25-internal thread III, 26-unidirectional saw tooth, 27-groove I, 28-flow channel, 29-conical inclined plane I, 30-conical inclined plane II, 31-groove II, 32-groove III, 33-groove IV 33.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the specific embodiments.
Example 1
Referring to fig. 1-6, in the embodiment of the present invention, a bidirectional anchoring soluble fracturing bridge plug includes a connector 1, an inner wall at an upper end of the connector 1 is connected with a special setting tool, a lower end of the connector 1 is sleeved on an outer side of a central tube 8, an inner thread is provided on an inner side of a lower end of the connector 1, the central tube 8 is connected with the connector 1 through the inner thread, a fixing pin 3 is further provided at a connection position of the central tube 8 and the connector 1, the fixing pin 3 makes the fixed connection between the central tube 8 and the connector 1 stronger, a pressing cap 4 is sleeved on an outer side of an upper end of the central tube 8, a locking ring 6 is provided inside an upper end of the pressing cap 4, an inner wall of the locking ring 6 is connected with an outer wall of an upper end of the central tube 8, and a connection manner of the inner wall of the locking ring 6 and the outer wall of the upper end of the central tube 8 is not limited, the inner wall of the lock ring 6 is in one-way threaded connection with the outer wall of the upper end of the central tube 8, the upper end of the pressure cap 4 is sleeved on the outer side of the baffle ring 5, the inner wall of the upper end of the pressure cap 4 is provided with an internal thread II, the baffle ring 5 is fixedly connected with the pressure cap 4 through the internal thread II arranged on the pressure cap 4, the baffle ring 5 also limits the lock ring 6, the lock ring 6 can move downwards and lock upwards under the action of force, the outer side of the upper end of the central tube 8 is also sleeved with an upper slip 7, the upper end face of the upper slip 7 is abutted with the lower end face of the pressure cap 4, the outer side of the central tube 8 is also sleeved with an upper cone 9, the upper slip 7 is abutted with the upper cone 9, the outer side of the central tube 8 is also sleeved with an upper protective cover 10, the lower end face of the upper cone 9 is abutted with the upper protective ring 11, the outer side of the central tube 8 is also sleeved with an upper protective ring 11, the lower end face of the upper protective cover 10 is abutted with the upper end face of the upper protective ring 11, the outer wall of the central tube 8 is further sleeved with an upper rubber tube 12, a middle rubber tube 13 and a lower rubber tube 14 in sequence, the upper end face of the upper rubber tube 12 is abutted against the lower end face of the upper protection ring 11, the lower end face of the upper rubber tube 12 is abutted against the upper end face of the middle rubber tube 13, the bidirectional anchoring soluble fracturing bridge plug is of a symmetrical structure, so that the bidirectional anchoring soluble fracturing bridge plug is further symmetrically provided with a lower slip 18, a lower cone 17, a lower protection ring 16, a lower protection ring 15 and a lower rubber tube 14 which are identical in structure and connection mode with the upper cone 7, the upper protection ring 10, the upper protection ring 11 and the upper rubber tube 12, the lower protection ring 16 is sleeved with a lower joint 20 outside the lower end of the central tube 8, the lower joint 20 is fixedly connected with the central tube 8 through the first external thread, the lower joint 20 is sleeved with the outer end face of the upper end of the guide head 22, the lower joint 20 is externally provided with the second external thread, the guide head 22 is fixedly connected with the lower joint through the second external thread arranged on the lower joint 20, and the guide head 22 is internally provided with a soluble ball 23, and the soluble ball 23 is formed inside the guide ball 22.
The first guiding inclined surface 24 is disposed on the connector 1, the specific connection mode between the connector 1 and the setting special tool is not limited, in this embodiment, preferably, the connector 1 is provided with the third internal thread 25, the connector 1 is connected with the setting special tool through the third internal thread 25, the lower end of the upper slip 7 is provided with the first conical inclined surface 29, the outer wall of the upper slip 7 is provided with the first plurality of grooves 27, in this embodiment, preferably, the first plurality of grooves 27 is seven, the inner wall of the upper slip 7 is provided with the second plurality of grooves 31, in this embodiment, preferably, the second plurality of grooves 31 is seven, the outer wall of the upper slip 7 is further provided with the unidirectional saw teeth 26 for anchoring, the upper cone 9 is provided with the second conical inclined surface 30 matched with the first conical inclined surface 29 disposed at the lower end of the upper slip 7, in this embodiment, the outer wall of the upper shroud 10 is provided with the third plurality of grooves 32, in this embodiment, preferably, the third plurality of grooves 32 is twelve, the upper outer wall 11 is provided with the fourth plurality of grooves 33, and the fourth guiding conical surface is preferably provided with the fourth guiding conical surface 33.
The bi-directionally anchored dissolvable fracturing bridge plug is internally provided with a fluid flow channel 28.
This two-way anchoring soluble fracturing bridge plug is for using as fracturing packing oil reservoir, and the fracturing is accomplished the back and is relieved by oneself through dissolving, need not to carry out subsequent salvage construction, is connected this two-way anchoring soluble fracturing bridge plug with the setting tool on ground, specifically is the lower extreme with the internal thread one of connector 1 upper end inner wall be connected, owing to the lower extreme adopts big tapering oblique angle structure, the convenience is gone into the well, avoided going into the well in-process to hinder, the whole structure of instrument totally adopts high strength soluble material, the rate of dissolution is high, the dissolution time is short, discharge ground along with the liquid stream after the dissolution is accomplished.
The working principle of the embodiment is as follows: after the bidirectional anchoring soluble fracturing bridge plug is plugged into a well, hydraulic pressure is pumped through a ground oil pipe, the hydraulic pressure is transmitted to a setting device through the oil pipe, the setting device pushes a pressing cap 4 to move downwards, the pressing cap 4 drives a baffle ring 5 and a locking ring 6 to move downwards, the locking ring 6 and a central pipe 8 are connected through unidirectional threads, the locking ring 6 can only move downwards and lock upwards, the pressing cap 4 continues to move downwards to compress an upper slip 7 and a lower cone, the lower cone extrudes an upper protecting cover 10 and an upper protecting ring 11, then the upper rubber cylinder 12, a middle rubber cylinder 13 and a lower rubber cylinder 14 are extruded, the rubber cylinder is outwards expanded to the inner wall of an oil layer sleeve to form sealing, after the rubber cylinder is expanded, as the lower end of the upper slip 7 and the upper cone upper end of the upper cone are respectively provided with a conical inclined plane I29 and a conical inclined plane II 30, the upper slip 7 can be outwards expanded along the conical inclined plane II 30 of the upper cone, the upper slips 7, the upper cone, the upper shield 10, the upper protection ring 11, the upper rubber sleeve 12, the lower slips 18, the lower cone, the lower shield 16, the lower protection ring 15 and the lower rubber sleeve 14 are respectively and correspondingly of the same structure, the upper end moves downwards, the central pipe 8 drives the lower joint 20 and the guide head 22 to move upwards relatively, the lower joint 20 continuously compresses the lower slips 18 and the lower cone relatively, the lower cone extrudes the lower shield 16 and the lower protection ring 15, the rubber sleeve is extruded, the rubber sleeve is outwards expanded to the inner wall of the oil layer sleeve to form sealing, and after the rubber sleeve is expanded, the lower slips 18 are outwards expanded to be anchored to the inner wall of the oil layer sleeve due to the fact that the structures of the lower slips 18 and the lower cone are the same as the upper slips 7 and the upper cone, and the lower slips 18 are outwards anchored to the inner wall of the oil layer sleeve at the moment, and the setting is completed. After the bidirectional anchoring soluble fracturing bridge plug is set, fracturing construction is carried out, and after the construction is finished, the bidirectional anchoring soluble fracturing bridge plug can be completely dissolved and returned to the ground in fracturing flowback fluid for six to eight days, so that the full-well full-drift diameter is realized.
Example 2
In order to make the connection between the various components in the bi-directionally anchored dissolvable frac bridge plug more secure, this embodiment is modified on the basis of embodiment 1 in that: a first sealing ring 2 is arranged between the inner wall of the upper end of the connector 1 and the outer wall of the upper end of the central tube 8, a second sealing ring 19 is arranged between the outer wall of the lower end of the central tube 8 and the inner wall of the upper end of the lower connector 20, a third sealing ring 21 is arranged between the outer wall of the lower end of the lower connector 20 and the inner wall of the upper end of the guide head 22, and the connection among all parts in the bidirectional anchoring soluble fracturing bridge plug is more fastened by arranging the first sealing ring 2, the second sealing ring 19 and the third sealing ring 21, and the specific forms of the first sealing ring 2, the second sealing ring 19 and the third sealing ring 21 are not limited.
The working principle of the embodiment is as follows: a first sealing ring 2 is arranged between the inner wall of the upper end of the connector 1 and the outer wall of the upper end of the central tube 8, a second sealing ring 19 is arranged between the outer wall of the lower end of the central tube 8 and the inner wall of the upper end of the lower connector 20, a third sealing ring 21 is arranged between the outer wall of the lower end of the lower connector 20 and the inner wall of the upper end of the guide head 22, and the connection among all parts in the bidirectional anchoring soluble fracturing bridge plug is more fastened by arranging the first sealing ring 2, the second sealing ring 19 and the third sealing ring 21.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (2)
1. The utility model provides a two-way anchoring soluble fracturing bridge plug, its characterized in that, including connector (1), be provided with direction inclined plane (24) one on connector (1), connector (1) upper end inner wall is connected with setting specialized tool, connector (1) lower extreme cover is established in the outside of center tube (8), connector (1) lower extreme inboard is provided with internal thread one, just center tube (8) still are provided with fixed pin (3) with the junction of connector (1), center tube (8) upper end outside cover is equipped with presses cap (4), press cap (4) upper end inside to be provided with catch (6), catch (6) inner wall and center tube (8) upper end outer wall one-way threaded connection, the upper end of the pressing cap (4) is sleeved on the outer side of the baffle ring (5), the inner wall of the upper end of the pressing cap (4) is provided with an inner thread II, the baffle ring (5) is fixedly connected with the pressing cap (4) through the inner thread II arranged on the pressing cap (4), an upper slip (7) is sleeved on the outer side of the upper end of the central tube (8), the upper end face of the upper slip (7) is abutted with the lower end face of the pressing cap (4), an upper cone (9) is sleeved on the outer side of the central tube (8), the upper slip (7) is abutted with the upper cone (9), an upper shield (10) is sleeved on the outer side of the central tube (8), the lower end face of the upper cone (9) is abutted with the upper end face of the upper shield (10), the outer side of the central tube (8) is also sleeved with an upper protection ring (11), the lower end face of the upper protection ring (10) is abutted against the upper end face of the upper protection ring (11), the outer wall of the central tube (8) is also sleeved with an upper rubber cylinder (12), a middle rubber cylinder (13) and a lower rubber cylinder (14) in sequence, the upper end face of the upper rubber cylinder (12) is abutted against the lower end face of the upper protection ring (11), the lower end face of the upper rubber cylinder (12) is abutted against the upper end face of the middle rubber cylinder (13), and lower slips (18) which are identical in structure and connection mode with the upper slips (7), the upper cone, the upper protection ring (10), the upper protection ring (11) and the upper rubber cylinder (12) are symmetrically arranged, The lower cone (17), the lower shield (16), the lower protection ring (15) and the lower rubber cylinder (14), a lower joint (20) is sleeved outside the lower end of the central tube (8), an external thread I is arranged outside the lower end of the central tube (8), the lower joint (20) is fixedly connected with the central tube (8) through the external thread I, an external thread II is arranged outside the lower end of the lower joint (20), a soluble ball (23) is arranged inside the guide head (22), the guide head (22) is fixedly connected with the guide head through the external thread II arranged on the lower joint (20), a liquid flow channel (28) is arranged inside the bidirectional anchoring soluble fracturing bridge plug, the inner wall of the lock ring (6) is in one-way threaded connection with the outer wall of the upper end of the central tube (8), the outer wall of the upper slip (7) is also provided with unidirectional saw teeth (26) for anchoring, the upper cone (9) is provided with a conical inclined plane II (30) matched with a conical inclined plane I (29) arranged at the lower end of the upper slip (7), a sealing ring I (2) is arranged between the inner wall of the upper end of the connector (1) and the outer wall of the upper end of the central tube (8), a sealing ring II (19) is arranged between the outer wall of the lower end of the central tube (8) and the inner wall of the upper end of the lower connector (20), a sealing ring III (21) is arranged between the outer wall of the lower end of the lower connector (20) and the inner wall of the upper end of the guide head (22), the sealing ring I (2), the sealing ring II (19) and the sealing ring III (21) are O-shaped rubber rings, be provided with on connector (1) be used for with setting specialized tool's internal thread three (25), the lower extreme of going up slips (7) is provided with toper inclined plane one (29), be provided with a plurality of recess one (27) on going up slips (7) outer wall, be provided with a plurality of recess two (31) on going up slips (7) inner wall, be provided with a plurality of recess three (32) on going up guard shield (10) outer wall, be provided with a plurality of recess four (33) on the outer wall of going up guard ring (11).
2. The bi-directional anchoring dissolvable fracturing bridge plug of claim 1, wherein the number of grooves one (27) is seven, the number of grooves two (31) is seven, the number of grooves three (32) is twelve, and the number of grooves four (33) is twelve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996765.8A CN110566156B (en) | 2019-10-19 | 2019-10-19 | Two-way anchoring soluble fracturing bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996765.8A CN110566156B (en) | 2019-10-19 | 2019-10-19 | Two-way anchoring soluble fracturing bridge plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110566156A CN110566156A (en) | 2019-12-13 |
| CN110566156B true CN110566156B (en) | 2024-06-07 |
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| CN201910996765.8A Active CN110566156B (en) | 2019-10-19 | 2019-10-19 | Two-way anchoring soluble fracturing bridge plug |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
| CN115182701B (en) * | 2021-04-06 | 2024-07-26 | 中国石油天然气股份有限公司 | Gas sealing tool and method |
| CN113279720B (en) * | 2021-06-30 | 2022-03-11 | 牡丹江市新翔石油机械有限责任公司 | Bidirectional expansion sealing mechanism and bidirectional expansion sealing packer thereof |
| CN116163683A (en) * | 2021-11-25 | 2023-05-26 | 中国石油天然气股份有限公司 | Sealing method for soluble bridge plug, tubular column and oil layer casing |
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| CN108590573A (en) * | 2018-08-13 | 2018-09-28 | 长江大学 | One kind can bore pitching press-fracturing bridge plug |
| CN208792974U (en) * | 2018-09-21 | 2019-04-26 | 天津市玛特瑞科技有限公司 | A kind of dual-grip, can bore remove, solvable bridge plug |
| CN109236230A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | A kind of magnesium-base metal dissolvable bridge plug |
| CN211230376U (en) * | 2019-10-19 | 2020-08-11 | 海塔石油科技有限公司 | Bidirectional anchoring soluble fracturing bridge plug |
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| CN110566156A (en) | 2019-12-13 |
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