CN107869323A - A kind of solvable bridging plug and its construction technology - Google Patents

A kind of solvable bridging plug and its construction technology Download PDF

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Publication number
CN107869323A
CN107869323A CN201610848630.3A CN201610848630A CN107869323A CN 107869323 A CN107869323 A CN 107869323A CN 201610848630 A CN201610848630 A CN 201610848630A CN 107869323 A CN107869323 A CN 107869323A
Authority
CN
China
Prior art keywords
solvable
mandrel
bridging plug
slips
packing element
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.)
Pending
Application number
CN201610848630.3A
Other languages
Chinese (zh)
Inventor
王金龙
赵锦栋
孙雪猛
李任戈
彭绍源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PETRO-KING OILFIELD TECHNOLOGY Co Ltd
China Construction Science and Industry Corp Ltd
Original Assignee
PETRO-KING OILFIELD TECHNOLOGY Co Ltd
China Construction Steel Structure Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PETRO-KING OILFIELD TECHNOLOGY Co Ltd, China Construction Steel Structure Corp Ltd filed Critical PETRO-KING OILFIELD TECHNOLOGY Co Ltd
Priority to CN201610848630.3A priority Critical patent/CN107869323A/en
Publication of CN107869323A publication Critical patent/CN107869323A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/134Bridging plugs
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production
    • E21B43/26Methods for stimulating production by forming crevices or fractures
    • E21B43/261Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation

Abstract

The present invention relates to a kind of solvable bridging plug and its construction technology, including solvable mandrel, it is arranged with outside the solvable mandrel for the solvable packing element by expansion plugging drilling well, in being provided at both ends with for the solvable packing element to be locked in into the locked component on the solvable mandrel vertically for the solvable packing element, the solvable mandrel is in hollow tubular, one end of the solvable mandrel is provided with the solvable ball for the mouth of pipe for being used to block the solvable mandrel, and the solvable guide shoe for being used under guiding boring is provided with the other end of the solvable mandrel.While Inter-zonal packing of the solvable bridging plug of the present invention when realizing staged fracturing operation acts on or realizes plugging action in completion, bridging plug has soluble characteristic in itself, it can be dissolved in the liquid such as clear water, active water, fracturing fluid, stratum water, completion fluid, after fracturing work terminates, the latus rectum of pit shaft is realized without boring mill operation can, to save operating expenses and avoid underground work risk, and the operation of individual well is realized in advance.

Description

A kind of solvable bridging plug and its construction technology
Technical field
The present invention relates to petroleum works technical field, more specifically to a kind of solvable bridging plug and its construction technology.
Background technology
In petroleum works completion, fracturing work technical field, often need to straight well, directional well or horizontal well pit shaft Different intervals carry out staged fracturing operation, it is necessary to realize Inter-zonal packing using bridging plug during staged fracturing.Existing frequently-used Composite bridge plug can bore bridging plug, need brill to grind off after pressing crack construction terminates, and to realize the latus rectum of pit shaft, so add work Industry cost and construction risk, while also delay production time.
The content of the invention
It is an object of the invention to provide a kind of solvable bridging plug and its construction technology, solve bridging plug needs in the prior art Brill is ground off the problem of causing to add operating cost, construction risk and delay production time.
The technical proposal for solving the technical problem of the invention is:A kind of solvable bridging plug, including solvable mandrel, described It is arranged with for the solvable packing element by expansion plugging drilling well outside solvable mandrel, is used in being provided at both ends with for solvable packing element The solvable packing element is locked in the locked component on the solvable mandrel vertically, the solvable mandrel is in hollow tubular, institute The one end for stating solvable mandrel is provided with the solvable ball for the mouth of pipe for being used to block the solvable mandrel, in the other end of the solvable mandrel Provided with the solvable guide shoe for guiding lower brill.
In the solvable bridging plug of the present invention, solvable pin is radially interspersed with the solvable guide shoe.
In the solvable bridging plug of the present invention, what the locked component was included in that the solvable packing element both ends set respectively is used for Fix and extrude the solvable packing element solvable sphenoid and for fix the solvable sphenoid and by expansion with drilling well well The solvable slips to be interfixed between wall, each described solvable sphenoid one end abut against with the solvable packing element, each described The other end of solvable sphenoid has inclined first interface, and the solvable slips has to match with first interface Inclined second interface, first interface docks with the second interface wedging, each solvable sphenoid It is respectively sleeved at each solvable slips outside the solvable mandrel.
In the solvable bridging plug of the present invention, close to the one end of the solvable slips of the solvable ball away from the solvable sphenoid Provided with the solvable throw-out collar for making the solvable slips and the solvable packing element expansion for pushing, the solvable throw-out collar is set in described Outside solvable mandrel, the side of the solvable throw-out collar towards the solvable ball is exposed for receiving promotion by pushing surface.
The present invention solvable bridging plug in, the solvable mandrel, solvable packing element, solvable ball, solvable guide shoe, solvable pin, Solvable sphenoid, solvable slips and solvable throw-out collar are respectively can solution made of magnesium alloy.
The present invention solvable bridging plug in, the solvable mandrel, solvable packing element, solvable ball, solvable guide shoe, solvable pin, Solvable sphenoid, solvable slips and the respective outer surface of solvable throw-out collar are covered each by the high score subtree for slowing down dissolution velocity Mylar layer.
In the solvable bridging plug of the present invention, the periphery of each solvable slips is used to increase frictional resistance provided with multiple The embedding grain of ceramics.
In the solvable bridging plug of the present invention, the periphery of each solvable slips is arranged for fixing the solvable slips C-shaped ring.
Present invention also offers construction technology of the above-mentioned solvable bridging plug in perforation connection makees staged fracturing operation, including such as Lower step:
S1, solvable bridging plug is connected on the setting instrument of cable or on hydraulic base sealed instrument, under to projected depth;
S2, positioned using the positioning instrument on underground tool string, in the position of projected depth, igniting is setting or suppresses seat Envelope;
S3, cable igniting perforation or hydraulic pressure suppress perforation, link up payzone;
S4, from sleeve pipe or oil pipe fracturing work is carried out, payzone is transformed, reaches effect of increasing production;
After S5, pressing crack construction terminate, the solvable bridging plug voluntarily dissolves;
S6, repeat step S1-S5 realize multistage pressure break.
Present invention also offers construction technology of the above-mentioned solvable bridging plug in completion blocks operation, comprise the following steps:
S1, solvable bridging plug is connected on the setting instrument of cable or on hydraulic base sealed instrument, under to projected depth;
S2, positioned using the positioning instrument on wireline tool string, in the position of projected depth, igniting is setting or suppresses seat Envelope;
S3, job execution;
After S4, construction terminate, the solvable bridging plug voluntarily dissolves.
Implement the solvable bridging plug and its construction technology of the present invention, have the advantages that:The solvable bridging plug of the present invention exists While realizing the effect of Inter-zonal packing during staged fracturing operation or realize plugging action in completion, bridging plug has solvable in itself The characteristic of solution, it can be dissolved in the liquid such as clear water, active water, fracturing fluid, stratum water, completion fluid, after fracturing work terminates, The latus rectum of pit shaft is realized without boring mill operation can, to save operating expenses and avoid underground work risk, and it is real in advance The operation of existing individual well.
Brief description of the drawings
Fig. 1 is the structural representation of the solvable bridging plug of the present invention;
Fig. 2 is the A-A of the solvable bridging plug in Fig. 1 of the present invention to cross section structure diagram;
Fig. 3 is the B-B direction cross section structure diagram of the solvable bridging plug in Fig. 1 of the present invention;
Fig. 4 is the C-C of the solvable bridging plug in Fig. 1 of the present invention to cross section structure diagram;
Fig. 5 is the D-D of the solvable bridging plug in Fig. 1 of the present invention to cross section structure diagram.
Embodiment
With reference to the accompanying drawings and examples, the solvable bridging plug and its construction technology of the present invention are described further:
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " etc. indicate Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore it is not considered as limiting the invention.
As Figure 1-5, solvable bridging plug of the invention includes solvable mandrel 2, is arranged with outside solvable mandrel 2 for passing through The solvable packing element 11 of expansion plugging drilling well, in being provided at both ends with for being vertically locked in solvable packing element 11 for solvable packing element 11 Locked component on solvable mandrel 2, solvable mandrel 2 are in hollow tubular, and one end of solvable mandrel 2, which is provided with, to be used to block solvable mandrel The solvable ball 1 of 2 mouth of pipe, the solvable guide shoe 14 for being used under guiding boring is provided with the other end of solvable mandrel 2.Wherein, it is solvable to draw Footwear 14 are connected by screw thread (not indicated in figure) with solvable mandrel 2, can also be fixed by a pin in other embodiments The solvable periphery of mandrel 2.The end face of solvable guide shoe 14 is oblique, has and is used for interspersed tip.Solvable guide shoe 14 be in order to The characteristics of solvable ball of next stage blocks solvable mandrel when closing setting mechanism, and having guiding tripping in simultaneously and prevent open flow.
Solvable pin 15 is radially interspersed with solvable guide shoe 14, the solvable pin 15 is used to prevent solvable guide shoe 14 from occurring Rotation, at the same the solvable mandrel blocked in the solvable bridging plug of upper level of the solvable ball sealing for being also prevented from the solvable bridging plug of next stage have it is solvable The mouth of pipe of one end of guide shoe.Preferably, central axis of the solvable pin 15 with solvable mandrel 2 vertically intersects, you can molten pin Son 15 is radially interspersed along maximum gauge, and the solvable ball sealing that can be better protected from the solvable bridging plug of next stage blocks the solvable bridge of upper level Solvable mandrel in plug has the mouth of pipe of one end of solvable guide shoe.
In the present embodiment, what locked component was included in that the solvable both ends of packing element 11 set respectively is used to fix and extrude solvable The solvable sphenoid 9 of packing element 11 and for fixing solvable sphenoid 9 and can by what is interfixed between expansion and drilling shaft lining Molten slips 7, each solvable one end of sphenoid 9 are abutted against with solvable packing element 11, and the other end of each solvable sphenoid 9, which has, to be tilted The first interface (not indicated in figure), solvable slips 7 have match with the first interface inclined second interface (figure In do not indicate), the first interface docks with the second interface wedging, and each solvable sphenoid 9 and each solvable slips 7 cover respectively It is located at outside solvable mandrel 2.Specifically, the direction of extension of one end end face of solvable sphenoid 9 is identical with the radial direction of solvable mandrel 2, For abutting the end of solvable packing element 11, the other end end face of solvable sphenoid 9 is oblique, solvable as the first interface (do not indicated in figure) formed with slot between second interface of slips 7 and the outer surface of solvable mandrel 2, solvable sphenoid 9 One end with the first interface is inserted into slot.
In other embodiments, locked component includes solvable slips, and one end end face of solvable slips is radially extending, and directly The end for being connected to solvable packing element is connect, without solvable sphenoid.
Be provided with close to the one end of the solvable slips 7 of solvable ball 1 away from solvable sphenoid 9 makes the solvable He of slips 7 for pushing The solvable throw-out collar 3 that solvable packing element 11 expands, solvable throw-out collar 3 are set in outside solvable mandrel 2, solvable throw-out collar 3 towards solvable ball 1 one Side is exposed for receiving promotion by pushing surface 31, is provided with the periphery of each solvable slips 7 multiple for increasing frictional resistance Ceramic embedding grain 8.Solvable throw-out collar 3 is promoted in construction is promoted solvable slips by pushing surface, solvable throw-out collar 3 under impetus power 7, solvable slips 7 will expand, while solvable slips 7 can also promote solvable sphenoid 9, and then be squeezed from the both ends of solvable packing element 11 Solvable packing element 11 is pressed, expands solvable packing element 11, the purpose of solvable slips 7 and solvable packing element 11 expansion makes the two and drilling well Fixed with each other between the borehole wall, avoid overall solvable bridging plug from being slided in drilling well, the ceramic embedding grain that the solvable periphery of slips 7 is set 8 by increasing frictional resistance, further avoids solvable slips 7 that sliding phenomenon occurs.
Wherein, solvable throw-out collar 3 is fixed on solvable mandrel 2 by the first pin 4, solvable slips 7 by the second pin 6, 13 are fixed on solvable mandrel 2, and solvable sphenoid 9 is fixed on solvable mandrel 2 by the 3rd pin 10,12, in other implementations It can also be fixedly connected in example by tack coat.Wherein ceramic embedding grain 8 is embedded in the periphery of solvable slips 7, can also strongly glue Knot is in the periphery of solvable slips 7.
Direction of the solvable slips 7 along the solvable radial direction of mandrel 2 is provided with C-shaped ring 5, C with solvable 9 equitant position of sphenoid Type ring 5 is set in the solvable periphery of slips 7, fluted (not indicated in figure) is opened up on solvable slips 7, C-shaped ring 5 is stuck in groove It is interior.
Wherein, solvable mandrel 2, solvable packing element 11, solvable ball 1, solvable guide shoe 14, solvable pin 15, solvable sphenoid 9, Solvable slips 7 and solvable throw-out collar 3 are respectively can solution made of magnesium alloy.It is adjusted according to the ratio of magnalium composition molten Solve the time.Preferably, magnesium alloy is made up of the component of following weight percentage:Magnesium 25~80%, surplus be aluminium and content≤ 1% impurity.It is highly preferred that magnesium alloy is made up of the component of following weight percentage:Magnesium 42~68%, surplus are aluminium and contained The impurity of amount≤1%.In addition, solvable packing element 11 selects PPA cartridges, can also be completely dissolved.
In solvable mandrel 2, solvable packing element 11, solvable ball 1, solvable guide shoe 14, solvable pin 15, solvable sphenoid 9, solvable The macromolecule resin film layer for slowing down dissolution velocity is respectively coated in slips 7 and 3 respective outer surface of solvable throw-out collar, to Control the initial dissolution time.Wherein macromolecule resin is preferably phenolic resin or phenol-formaldehyde resin modified, or modified epoxy Resin etc..The solvable bridging plug that can make the present invention by the macromolecule resin slowly dissolves within 10 hours, with Just solvable bridge plugging drilling well is effectively utilized in this period, after the completion for the treatment of operation, after 10 hours, macromolecule resin film Layer rupture, solvable bridging plug can voluntarily dissolve with rapidly.
Construction technology of the above-mentioned solvable bridging plug in perforation connection makees staged fracturing operation, comprises the following steps:
S1, solvable bridging plug is connected on the setting instrument of cable or on hydraulic base sealed instrument, under to projected depth;
S2, positioned using the positioning instrument on underground tool string, in the position of projected depth, igniting is setting or suppresses seat Envelope;
S3, cable igniting perforation or hydraulic pressure suppress perforation, link up payzone;
S4, from sleeve pipe or oil pipe fracturing work is carried out, payzone is transformed, reaches effect of increasing production;
After S5, pressing crack construction terminate, the solvable bridging plug voluntarily dissolves;
S6, repeat step S1-S5 realize multistage pressure break.
Construction technology of the above-mentioned solvable bridging plug in completion blocks operation, comprises the following steps:
S1, solvable bridging plug is connected on the setting instrument of cable or on hydraulic base sealed instrument, under to projected depth;
S2, positioned using the positioning instrument on wireline tool string, in the position of projected depth, igniting is setting or suppresses seat Envelope;
S3, job execution;
After S4, construction terminate, the solvable bridging plug voluntarily dissolves.
The present invention is a kind of solvable bridging plug, is mainly used in the completions of petroleum works, fracturing technique field, it is possible to achieve Interim packing when Inter-zonal packing during staged fracturing operation and completion practice, meanwhile, solvable bridging plug of the invention has in itself Soluble characteristic, it can be dissolved in the liquid such as clear water, active water, fracturing fluid, stratum water, completion fluid.In fracturing work knot Shu Hou, the latus rectum of pit shaft is realized without boring mill operation can, to save operating expenses and avoid underground work risk, and is carried The preceding operation for realizing individual well.
The present invention solvable bridging plug there is soluble characteristic in itself, can clear water, active water, fracturing fluid, stratum water, Dissolved in the liquid such as completion fluid.After fracturing work terminates, the latus rectum of pit shaft is realized without boring mill operation can, is applied with saving Expenses of labour is used and avoids underground work risk, and realizes the operation of individual well in advance.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, All improvement or conversion should all belong within the protection domain of appended claims of the present invention.

Claims (10)

1. a kind of solvable bridging plug, it is characterised in that including solvable mandrel (2), be arranged with outside the solvable mandrel (2) for leading to Cross the solvable packing element (11) of expansion plugging drilling well, the solvable packing element (11) be provided at both ends with for vertically will described in can Colloidal sol cylinder (11) is locked in the locked component on the solvable mandrel (2), and the solvable mandrel (2) is in hollow tubular, it is described can One end of molten mandrel (2) is provided with the solvable ball (1) for the mouth of pipe for being used to block the solvable mandrel (2), in the solvable mandrel (2) The other end be provided with and be used to guide the solvable guide shoe (14) of lower brill.
2. solvable bridging plug according to claim 1, it is characterised in that being radially interspersed with the solvable guide shoe (14) can Molten pin (15).
3. solvable bridging plug according to claim 2, it is characterised in that the locked component is included in the solvable packing element (11) what both ends were set respectively is used to fix and extrudes the solvable sphenoid (9) of the solvable packing element (11) and for described in fixation Solvable sphenoid (9) and the solvable slips (7) by being interfixed between expansion and drilling shaft lining, each solvable sphenoid (9) one end abuts against with the solvable packing element (11), and the other end of each solvable sphenoid (9) has inclined first pair Junction, the solvable slips (7) have inclined second interface to match with first interface, first docking Face is docked with the second interface wedging, and each solvable sphenoid (9) and each solvable slips (7) are arranged respectively In the solvable mandrel (2) outside.
4. solvable bridging plug according to claim 3, it is characterised in that the solvable slips (7) close to the solvable ball (1) is remote One end from the solvable sphenoid (9) expands the solvable slips (7) and the solvable packing element (11) provided with pushing is used for Solvable throw-out collar (3), the solvable throw-out collar (3) is set in the solvable mandrel (2) outside, and the solvable throw-out collar (3) is described in The side of solvable ball (1) is exposed for receiving promotion by pushing surface (31).
5. solvable bridging plug according to claim 4, it is characterised in that the solvable mandrel (2), solvable packing element (11), can Molten ball (1), solvable guide shoe (14), solvable pin (15), solvable sphenoid (9), solvable slips (7) and solvable throw-out collar (3) are respectively Being can solution made of magnesium alloy.
6. solvable bridging plug according to claim 5, it is characterised in that the solvable mandrel (2), solvable packing element (11), can Molten ball (1), solvable guide shoe (14), solvable pin (15), solvable sphenoid (9), solvable slips (7) and solvable throw-out collar (3) are respective Outer surface be covered each by macromolecule resin film layer for slowing down dissolution velocity.
7. solvable bridging plug according to claim 3, it is characterised in that the periphery of each solvable slips (7) is provided with more The individual ceramic embedding grain (8) for being used to increase frictional resistance.
8. solvable bridging plug according to claim 3, it is characterised in that the periphery of each solvable slips (7) is arranged use In the C-shaped ring (5) of the fixation solvable slips (7).
A kind of 9. construction of the solvable bridging plug in perforation connection makees staged fracturing operation described in claim 1-8 any claims Technique, it is characterised in that comprise the following steps:
S1, solvable bridging plug is connected on the setting instrument of cable or on hydraulic base sealed instrument, under to projected depth;
S2, positioned using the positioning instrument on underground tool string, in the position of projected depth, igniting is setting or suppress setting;
S3, cable igniting perforation or hydraulic pressure suppress perforation, link up payzone;
S4, from sleeve pipe or oil pipe fracturing work is carried out, payzone is transformed, reaches effect of increasing production;
After S5, pressing crack construction terminate, the solvable bridging plug voluntarily dissolves;
S6, repeat step S1-S5 realize multistage pressure break.
10. construction technology of the solvable bridging plug in completion blocks operation described in a kind of claim 1-8 any claims, its It is characterised by, comprises the following steps:
S1, solvable bridging plug is connected on the setting instrument of cable or on hydraulic base sealed instrument, under to projected depth;
S2, positioned using the positioning instrument on wireline tool string, in the position of projected depth, igniting is setting or suppress setting;
S3, job execution;
After S4, construction terminate, the solvable bridging plug voluntarily dissolves.
CN201610848630.3A 2016-09-23 2016-09-23 A kind of solvable bridging plug and its construction technology Pending CN107869323A (en)

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Application Number Priority Date Filing Date Title
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CN107869323A true CN107869323A (en) 2018-04-03

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108643849A (en) * 2018-04-11 2018-10-12 中国石油天然气股份有限公司 Solvable slips and solvable bridge plug
CN109897615A (en) * 2019-04-26 2019-06-18 天津市玛特瑞科技有限公司 A kind of preparation method of slow-release magnesium alloy completion tool cosolvent
CN110513075A (en) * 2019-08-16 2019-11-29 中国石油集团长城钻探工程有限公司 A kind of solvable bridge plug and accelerate bridge plug dissolution can dissolving device
CN110552659A (en) * 2019-09-19 2019-12-10 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 All-metal soluble bridge plug
CN110761735A (en) * 2018-07-27 2020-02-07 成都德维石油技术服务有限责任公司 Ball-carrying type dissolvable bridge plug
CN110847853A (en) * 2019-11-15 2020-02-28 大庆市海兴石油科技发展有限公司 Self-adaptive high-performance bridge plug
WO2020073349A1 (en) * 2018-10-09 2020-04-16 成都维泰油气能源技术有限公司 Mixture bridge plug
WO2021092946A1 (en) * 2019-11-15 2021-05-20 大庆市海兴石油科技发展有限公司 Bridge plug and packer having rubber expandable in oil
US20220178221A1 (en) * 2020-04-16 2022-06-09 Halliburton Energy Services, Inc. Fluid Barriers For Dissolvable Plugs

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108643849A (en) * 2018-04-11 2018-10-12 中国石油天然气股份有限公司 Solvable slips and solvable bridge plug
CN110761735A (en) * 2018-07-27 2020-02-07 成都德维石油技术服务有限责任公司 Ball-carrying type dissolvable bridge plug
WO2020073349A1 (en) * 2018-10-09 2020-04-16 成都维泰油气能源技术有限公司 Mixture bridge plug
CN109897615A (en) * 2019-04-26 2019-06-18 天津市玛特瑞科技有限公司 A kind of preparation method of slow-release magnesium alloy completion tool cosolvent
CN110513075A (en) * 2019-08-16 2019-11-29 中国石油集团长城钻探工程有限公司 A kind of solvable bridge plug and accelerate bridge plug dissolution can dissolving device
CN110513075B (en) * 2019-08-16 2022-05-06 中国石油天然气集团有限公司 Soluble bridge plug and soluble device for accelerating dissolution of bridge plug
CN110552659A (en) * 2019-09-19 2019-12-10 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 All-metal soluble bridge plug
CN110847853A (en) * 2019-11-15 2020-02-28 大庆市海兴石油科技发展有限公司 Self-adaptive high-performance bridge plug
CN110847853B (en) * 2019-11-15 2020-06-23 大庆市海兴石油科技发展有限公司 Self-adaptive high-performance bridge plug
WO2021092946A1 (en) * 2019-11-15 2021-05-20 大庆市海兴石油科技发展有限公司 Bridge plug and packer having rubber expandable in oil
US20220178221A1 (en) * 2020-04-16 2022-06-09 Halliburton Energy Services, Inc. Fluid Barriers For Dissolvable Plugs

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