CN110185414A - A kind of solvable bridge plug of outer expanding - Google Patents
A kind of solvable bridge plug of outer expanding Download PDFInfo
- Publication number
- CN110185414A CN110185414A CN201910605436.6A CN201910605436A CN110185414A CN 110185414 A CN110185414 A CN 110185414A CN 201910605436 A CN201910605436 A CN 201910605436A CN 110185414 A CN110185414 A CN 110185414A
- Authority
- CN
- China
- Prior art keywords
- cone
- baffle ring
- central tube
- slips seat
- pin
- 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.)
- Granted
Links
- 238000012856 packing Methods 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000002195 soluble material Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
-
- 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
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)
- Earth Drilling (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The present invention relates to a kind of outer solvable bridge plugs of expanding.Its technical solution is: the lower end of connector is flexibly connected with the upper end of pull rod, pull rod outer cover is equipped with central tube, upper slips seat, upper cone, the first baffle ring, the second baffle ring, double-sealing cone, outer expanding packing element, double-sealing cone, the second baffle ring, the first baffle ring and lower cone are successively set with outside central tube from top to bottom, the lower cone lower part, pull rod outer cover are equipped with lower slips seat, and lower slips seat lower part, pull rod outer cover are equipped with pedestal；The outer expanding packing element inner hole both ends are pyramidal structure；The double-sealing cone is that cone match contacts with the second baffle ring and outer expanding packing element, is inlaid with slip insert on upper slips seat and lower slips seat.Beneficial effect is: packing element is outer expanding structure, and sealing compensation is big, and sealing effect is good；In central tube bore design pull rod, central tube does not stress, and central tube intensity requirement is small, and internal diameter design is much greater；Slip insert is inserted ultra hard ceramic material, and guarantee is set securely.
Description
Technical field
The present invention relates to a kind of oil exploration, field of oilfield exploitation, in particular to a kind of solvable bridge plug of outer expanding.
Background technique
Horizontal well development has the characteristics that drainage area is big, well yield is high, reserves exploitation degree is high, recovery ratio is high, with
Law quality reservoirs exploitation deepen continuously, using horizontal well development become improve exploitation comprehensive benefit effective means.It penetrates
Kong Lianzuo staged fracturing technology is the key technology of horizontal well development law quality reservoirs, which has the letter of operating tool string structure
It is single, pit shaft noresidue, the characteristics of being convenient for later period measure operation, due to autolyzed, the solvable bridge plug tool in the technology of solvable bridge plug
Having the incomparable advantage of bridge plugs such as can bore, can be recycled.
Chinese patent literature Publication No. 109899028A, patent name are " a kind of solvable bridge plug ", including bridge plug main body
And the hydrotropy mechanism being fixedly connected with bridge plug main body, bridge plug main body include central tube, bridge plug main body further include successively from a left side to
The right side is socketed in lead ring, upper slips, lock ring, upper centrum, three packing element mechanisms, hypocentrum, lower slips and guide shoe on central tube, leads
Ring, upper slips, lock ring, upper centrum, three packing element mechanisms, hypocentrum and lower slips are slidably connected with central tube respectively, guide shoe with
Center tube end is fixedly connected, and upper slips lower part is inserted into upper centrum one end, and lower slips lower part, hydrotropy mechanism are inserted into hypocentrum one end
Including multiple hydrotropy blocks being fixedly connected with bridge plug body outer surface, so that the present invention, which realizes, effectively controls the molten of bridge plug
Solve speed.
Chinese patent literature Publication No. 109505559A, patent name are " a kind of solvable bridge plug " comprising mandrel, glue
Cylinder, centrum sleeve, slips and lower contact pipe nipple, mandrel are hollow structure, and mandrel is equipped with positive stop lug boss, the packing element and centrum
Sleeve is successively slidably located in the mandrel outer surface of positive stop lug boss side, slips be it is multiple, multiple slips pass through radial limit knot
Structure is located on the conical surface of centrum sleeve, one end of lower contact pipe nipple be slidably located in mandrel the other end and abutted with slips, often
A slips is equipped with multiple slips teeth, and slips tooth is bevel cylinder, and slips tooth includes oblique section direction for along the cone of centrum sleeve
The lower slips tooth and oblique section direction that face direction tilts down are along the acclivitous upper slips tooth in the conical surface direction of centrum sleeve.
The present invention reduces underground and is hampered risk, reduces oil/gas well operation safety hidden danger.
But solvable bridge plug in the prior art, since the strength of materials is low, often sealing occur during fracturing work can not
By the problem of.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, provide a kind of solvable bridge plug of outer expanding, real
The reliable sealing that perforation connection makees bridge plug in staged fracturing technology field application is showed, has reduced construction risk, improve measure validity.
A kind of outer solvable bridge plug of expanding that the present invention mentions, technical solution is: including connector (1), pull rod (2), in
Heart pipe (3), upper slips seat (4), slip insert (5), upper cone (6), the first baffle ring (7), the second baffle ring (8), double-sealing cone
(9), outer expanding packing element (10), lower cone (11), lower slips seat (12), pedestal (13)；The lower end and pull rod (2) of connector (1)
Upper end be flexibly connected, pull rod (2) outer cover is equipped with central tube (3), is successively set with card from top to bottom outside central tube (3)
Watt seat (4), upper cone (6), the first baffle ring (7), the second baffle ring (8), double-sealing cone (9), outer expanding packing element (10), double-sealing
Cone (9), the second baffle ring (8), the first baffle ring (7) and lower cone (11), lower cone (11) lower part, pull rod (2) outer cover
Equipped with lower slips seat (12), lower slips seat (12) lower part, pull rod (2) outer cover are equipped with pedestal (13)；The outer expanding glue
Cylinder (10) inner hole both ends are pyramidal structure；The double-sealing cone (9) is with the second baffle ring (8) and outer expanding packing element (10)
Cone match contacts, and is inlaid with slip insert (5) on the upper slips seat (4) and lower slips seat (12).
Preferably, above-mentioned first baffle ring (7) and the second baffle ring (8) are the bowl-shape knot of outward opening expanding packing element (10)
Structure, and circumferencial direction is machined at least 3 axial grooves (555).
Preferably, at least one first pin hole (333), first pin hole are machined on above-mentioned upper cone (6)
(333) be provided with the first pin (14), the central tube (3) and upper cone (6) after the assembly is completed, the first pin annular groove
(111) it is axially aligned with the first pin hole (333), first pin (14) is fastened in the first pin annular groove (111), makes institute
It states central tube (3) and upper cone (6) is connected.
Preferably, at least one second pin hole (444), second pin hole are machined on above-mentioned lower cone (11)
(444) be provided with the second pin (15), the central tube (3) and lower cone (11) after the assembly is completed, the second pin annular groove
(222) it is axially aligned with the second pin hole (444), second pin (15) is fastened in the second pin annular groove (222), makes institute
It states central tube (3) and lower cone (11) is connected.
Preferably, above-mentioned slip insert (5) is ceramic material, and upper slips seat (4) lower part and upper cone (6) top are cone
Face cooperation contact；Lower cone (11) lower part and lower slips seat (12) top are cone match contact.
Preferably, above-mentioned upper slips seat (4) and lower slips seat (12) are using the low company of removal MATERIALS METHODS formation circumferencial direction
Connect at least three parts of intensity.
Preferably, above-mentioned central tube top is machined with the first pin annular groove (111), and central tube (3) lower part is machined with
Second pin annular groove (222).
It is above-mentioned upper slips seat (4), upper cone (6), the first baffle ring (7), the second baffle ring (8), double-sealing cone (9), outer swollen
Formula packing element (10), lower cone (11), lower slips seat (12) and pedestal (13) are made of soluble material.
The beneficial effects of the present invention are: 1, packing element is outer expanding structure, sealing compensation is big, and sealing effect is good；2, using whole
Body slips reduces the difficulty of processing and cost of traditional slips；3, it is that central tube is drawn to compress packing element and slips that traditional bridge plug, which is set,
Central tube will have very high intensity, cause inner diameter of centerpipe smaller；This bridge plug be one high intensity of central tube bore design not
Soluble metal pull rod, central tube do not stress, and central tube intensity requirement is small, internal diameter design it is much greater, be conducive to quickly dissolve and
Production of hydrocarbons；4, slip insert is inserted ultra hard ceramic material, and guarantee is set securely.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram of the invention；
The half sectional view of pipe centered on attached drawing 2；
Attached drawing 3 is the 3-D view of upper slips seat；
In upper figure: connector 1, pull rod 2, central tube 3, upper slips seat 4, slip insert 5, upper cone 6, the first baffle ring 7, the second baffle ring
8, double-sealing cone 9, outer expanding packing element 10, lower cone 11, lower slips seat 12, pedestal 13, the first pin 14 and the second pin 15；
First pin annular groove 111, the second pin annular groove 222, the first pin hole 333, the second pin hole 444, axial groove 555.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1, referring to attached drawing 1, a kind of outer solvable bridge plug of expanding that the present invention mentions, including connector 1, pull rod 2, in
Heart pipe 3, upper slips seat 4, slip insert 5, upper cone 6, the first baffle ring 7, the second baffle ring 8, double-sealing cone 9, outer expanding packing element 10,
Lower cone 11, lower slips seat 12, pedestal 13, the first pin 14 and the second pin 15；1 upper end of connector is equipped with internal screw thread, connection
First 1 lower end is connect with 2 threaded upper ends of pull rod, and 2 outer cover of pull rod is equipped with central tube 3, and the central tube top is machined with the first pin
Annular groove 111 is followed closely, 3 lower part of central tube is machined with the second pin annular groove 222, is successively set with from top to bottom outside central tube 3
Upper slips seat 4, upper cone 6, the first baffle ring 7, the second baffle ring 8, double-sealing cone 9, outer expanding packing element 10, double-sealing cone 9,
Two baffle rings 8, the first baffle ring 7 and lower cone 11,11 lower part of lower cone, 2 outer cover of pull rod are equipped with lower slips seat 12, under described
12 lower part of slip spider, 2 outer cover of pull rod are connected equipped with pedestal 13, the pull rod 2 and pedestal 13 by screw thread；The outer expanding glue
10 inner hole both ends of cylinder are pyramidal structure；The double-sealing cone 9 and the second baffle ring 8 and outer expanding packing element 10 are cone match
Contact；First baffle ring 7 and the second baffle ring 8 are the bowl structure of outward opening expanding packing element 10 and circumferencial direction is machined with
At least 3 axial grooves 555；At least one first pin hole 333 is machined on the upper cone 6, in first pin hole 333
Equipped with the first pin 14, the central tube 3 and upper cone 6 after the assembly is completed, the first pin annular groove 111 and the first pin hole
333 axially align, and first pin 14 is fastened in the first pin annular groove 111, and the central tube 3 and upper cone 6 is made to be connected,
At least one second pin hole 444 is machined on the lower cone 11, second pin hole 444 is provided with the second pin 15,
After the assembly is completed, the second pin annular groove 222 and the second pin hole 444 are axially aligned, institute for the central tube 3 and lower cone 11
It states the second pin 15 to be fastened in the second pin annular groove 222, the central tube 3 and lower cone 11 is made to be connected；
Referring to attached drawing 3, slip insert 5 is inlaid on upper slips seat 4 of the invention, the slip insert 5 is ceramic material, the upper card
Watt 4 lower part of seat and 6 top of upper cone are cone match contact；Slip insert 5, the slip insert are inlaid on the lower slips seat 12
5 be ceramic material, and 11 lower part of lower cone and 12 top of lower slips seat are cone match contact；The upper slips seat 4 is under
Slip spider 12 forms at least three parts of the low bonding strength of circumferencial direction using removal MATERIALS METHODS.
And upper slips seat 4, upper cone 6, the first baffle ring 7, the second baffle ring 8, double-sealing cone 9, outer expanding packing element 10, lower cone
Body 11, lower slips seat 12 and pedestal 13 are made of soluble material.
In use, connector 1 of the invention and setting tool are threadedly attached in setting tool lower part, it is then whole to connect
It is connected to oil pipe column bottom, design position is transported to by oil pipe, suppresses 5 ~ 20MPa from oil pipe, under the action of oil pressure, is set
A setting force F directly proportional to oil pressure is generated on tool, setting force F is acted on face 66, and setting force F is more than lower slips first
The circumferencial direction bonding strength of seat 12 so that lower slips seat 12 is circumferential at least to fragment into three parts or more, and is set set
On tube wall, with the raising of oil pressure, sets pressure F and continue to increase, when setting force F is more than the shear strength of pin 15, pin
15 are cut, setting force F be sequentially delivered to baffle ring 17, baffle ring 28, double-sealing cone 9, outer expanding packing element 10, double-sealing cone 9,
On baffle ring 28, baffle ring 17, double-sealing cone 9 is under the action of contacting the conical surface, so that the external expanding packing element 10 of setting force F generates one
An a outer swollen and compression setting force, it is more preferable that outer expanding packing element 10 sets effect, under the action of setting force F, double-sealing cone 9
By the baffle ring 28 of outer about 10 expanding packing element, outside baffle ring 17 it is swollen on casing wall, limit outer 10 deformation space of expanding packing element, reduction
The prominent effect of outer expanding packing element 10, raising set pressure difference, continue to improve oil pressure, set pressure F and persistently increase, cut pin 14,
Circumferential fracture upper slips seat 4, and set on casing wall, with the continuous improvement of oil pressure, bridge plug sets effect and constantly mentions
Height, when setting force reaches design parameter, the connection screw thread of pull rod 2 and pedestal 13 is broken, and completion bridge plug, which is set, gives up.
The above, is only part preferred embodiment of the invention, and anyone skilled in the art may benefit
Equivalent technical solution is modified or is revised as with the technical solution of above-mentioned elaboration.Therefore, technology according to the present invention
Any simple modification or substitute equivalents that scheme is carried out, belong to the greatest extent the scope of protection of present invention.
Claims (8)
1. a kind of solvable bridge plug of outer expanding, it is characterized in that: including connector (1), pull rod (2), central tube (3), upper slips seat
(4), slip insert (5), upper cone (6), the first baffle ring (7), the second baffle ring (8), double-sealing cone (9), outer expanding packing element (10),
Lower cone (11), lower slips seat (12), pedestal (13)；The lower end of connector (1) is flexibly connected with the upper end of pull rod (2), pull rod
(2) outer cover is equipped with central tube (3), be successively set with outside central tube (3) from top to bottom upper slips seat (4), upper cone (6),
First baffle ring (7), the second baffle ring (8), double-sealing cone (9), outer expanding packing element (10), double-sealing cone (9), the second baffle ring
(8), the first baffle ring (7) and lower cone (11), lower cone (11) lower part, pull rod (2) outer cover are equipped with lower slips seat (12),
Lower slips seat (12) lower part, pull rod (2) outer cover are equipped with pedestal (13)；Outer expanding packing element (10) the inner hole both ends are
Pyramidal structure；The double-sealing cone (9) is that cone match contacts with the second baffle ring (8) and outer expanding packing element (10), described
Slip insert (5) are inlaid on upper slips seat (4) and lower slips seat (12).
2. the solvable bridge plug of outer expanding according to claim 1, it is characterized in that: first baffle ring (7) and the second baffle ring (8)
It is the bowl structure of outward opening expanding packing element (10), and circumferencial direction is machined at least 3 axial grooves (555).
3. the solvable bridge plug of outer expanding according to claim 1, it is characterized in that: being machined at least one on the upper cone (6)
A first pin hole (333), first pin hole (333) are provided with the first pin (14), the central tube (3) and upper cone
(6) after the assembly is completed, the first pin annular groove (111) and the first pin hole (333) are axially aligned, first pin (14)
It is fastened in the first pin annular groove (111), the central tube (3) and upper cone (6) is made to be connected.
4. the solvable bridge plug of outer expanding according to claim 1, it is characterized in that: being machined at least one on the lower cone (11)
A second pin hole (444), second pin hole (444) are provided with the second pin (15), the central tube (3) and lower cone
(11) after the assembly is completed, the second pin annular groove (222) and the second pin hole (444) are axially aligned, second pin
(15) it is fastened in the second pin annular groove (222), the central tube (3) and lower cone (11) is made to be connected.
5. the solvable bridge plug of outer expanding according to claim 1, it is characterized in that: the slip insert (5) is ceramic material, it is described
Upper slips seat (4) lower part and upper cone (6) top are cone match contact；Lower cone (11) lower part and lower slips seat (12)
Top is cone match contact.
6. the solvable bridge plug of outer expanding according to claim 5, it is characterized in that: the upper slips seat (4) and lower slips seat
(12) at least three parts of the low bonding strength of circumferencial direction are formed using removal MATERIALS METHODS.
7. the solvable bridge plug of outer expanding according to claim 1, it is characterized in that: the top of the central tube (3) is machined with
One pin annular groove (111), the lower part of the central tube (3) are machined with the second pin annular groove (222).
8. the solvable bridge plug of outer expanding according to claim 1, it is characterized in that: the upper slips seat (4), upper cone (6),
One baffle ring (7), the second baffle ring (8), double-sealing cone (9), outer expanding packing element (10), lower cone (11), lower slips seat (12) and
Pedestal (13) is made of soluble material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605436.6A CN110185414B (en) | 2019-07-05 | 2019-07-05 | External expansion type soluble bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605436.6A CN110185414B (en) | 2019-07-05 | 2019-07-05 | External expansion type soluble bridge plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110185414A true CN110185414A (en) | 2019-08-30 |
| CN110185414B CN110185414B (en) | 2024-03-19 |
Family
ID=67725148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910605436.6A Active CN110185414B (en) | 2019-07-05 | 2019-07-05 | External expansion type soluble bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185414B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685634A (en) * | 2019-11-06 | 2020-01-14 | 陕西航天德林科技集团有限公司 | Sealing rubber sleeve, fishing-free packer and setting method thereof |
| CN111322031A (en) * | 2020-03-29 | 2020-06-23 | 陈玉 | Easy-to-mount combined rubber cylinder bridge plug |
| CN113090227A (en) * | 2020-01-09 | 2021-07-09 | 中国石油天然气股份有限公司 | Multilayer quick-dissolving fracturing string |
| CN113107413A (en) * | 2020-01-09 | 2021-07-13 | 中国石油天然气股份有限公司 | Split type all-metal sealing device |
| CN113250648A (en) * | 2020-02-07 | 2021-08-13 | 四川维泰科创石油设备制造有限公司 | Soluble metal sealing card seat |
| US11371313B2 (en) | 2019-11-13 | 2022-06-28 | Petro-King Technology Co., Ltd | Hard-sealing soluble bridge plug |
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| WO2017029622A1 (en) * | 2015-08-19 | 2017-02-23 | Global Technology And Innovation Limited | An expander assembly |
| CN106894787A (en) * | 2017-03-06 | 2017-06-27 | 四机赛瓦石油钻采设备有限公司 | A kind of single deck tape-recorder watt big orifice bridging plug and its set method |
| US20180305997A1 (en) * | 2017-04-20 | 2018-10-25 | Aimin Chen | Central shaft for bridge plug, bridge plug and setting method for the same |
| CN208073423U (en) * | 2018-04-10 | 2018-11-09 | 重庆地质矿产研究院 | Single slip type soluble 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 |
| CN210343302U (en) * | 2019-07-05 | 2020-04-17 | 山东博赛特石油技术有限公司 | External expansion type soluble bridge plug |
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2019
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| WO2017029622A1 (en) * | 2015-08-19 | 2017-02-23 | Global Technology And Innovation Limited | An expander assembly |
| CN106894787A (en) * | 2017-03-06 | 2017-06-27 | 四机赛瓦石油钻采设备有限公司 | A kind of single deck tape-recorder watt big orifice bridging plug and its set method |
| US20180305997A1 (en) * | 2017-04-20 | 2018-10-25 | Aimin Chen | Central shaft for bridge plug, bridge plug and setting method for the same |
| CN208073423U (en) * | 2018-04-10 | 2018-11-09 | 重庆地质矿产研究院 | Single slip type soluble 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685634A (en) * | 2019-11-06 | 2020-01-14 | 陕西航天德林科技集团有限公司 | Sealing rubber sleeve, fishing-free packer and setting method thereof |
| US11371313B2 (en) | 2019-11-13 | 2022-06-28 | Petro-King Technology Co., Ltd | Hard-sealing soluble bridge plug |
| CN113090227A (en) * | 2020-01-09 | 2021-07-09 | 中国石油天然气股份有限公司 | Multilayer quick-dissolving fracturing string |
| CN113107413A (en) * | 2020-01-09 | 2021-07-13 | 中国石油天然气股份有限公司 | Split type all-metal sealing device |
| CN113107413B (en) * | 2020-01-09 | 2022-06-03 | 中国石油天然气股份有限公司 | Split type all-metal sealing device |
| CN113090227B (en) * | 2020-01-09 | 2022-07-05 | 中国石油天然气股份有限公司 | Multilayer quick-dissolving fracturing string |
| CN113250648A (en) * | 2020-02-07 | 2021-08-13 | 四川维泰科创石油设备制造有限公司 | Soluble metal sealing card seat |
| CN113250648B (en) * | 2020-02-07 | 2024-05-28 | 四川维泰科创石油设备制造有限公司 | Soluble metal seal clamping seat |
| CN111322031A (en) * | 2020-03-29 | 2020-06-23 | 陈玉 | Easy-to-mount combined rubber cylinder bridge plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110185414B (en) | 2024-03-19 |
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