WO2016003759A1 - Bouchon de fond de trou en aluminium dissoluble - Google Patents
Bouchon de fond de trou en aluminium dissoluble Download PDFInfo
- Publication number
- WO2016003759A1 WO2016003759A1 PCT/US2015/037636 US2015037636W WO2016003759A1 WO 2016003759 A1 WO2016003759 A1 WO 2016003759A1 US 2015037636 W US2015037636 W US 2015037636W WO 2016003759 A1 WO2016003759 A1 WO 2016003759A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mandrel
- plug
- ring
- tool
- aluminum
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 143
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 239000012530 fluid Substances 0.000 claims abstract description 188
- 229920001971 elastomer Polymers 0.000 claims abstract description 54
- 239000000806 elastomer Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 103
- 239000000463 material Substances 0.000 claims description 41
- 229910000838 Al alloy Inorganic materials 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 9
- 230000002706 hydrostatic effect Effects 0.000 claims description 9
- 229910001018 Cast iron Inorganic materials 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 64
- 239000002184 metal Substances 0.000 description 64
- 238000000034 method Methods 0.000 description 38
- 238000004519 manufacturing process Methods 0.000 description 31
- 239000004568 cement Substances 0.000 description 25
- 239000004576 sand Substances 0.000 description 23
- 230000002378 acidificating effect Effects 0.000 description 19
- 238000004090 dissolution Methods 0.000 description 18
- 238000003801 milling Methods 0.000 description 18
- 230000036961 partial effect Effects 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 14
- 239000002245 particle Substances 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229920000954 Polyglycolide Polymers 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000005553 drilling Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000004633 polyglycolic acid Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 229910000861 Mg alloy Inorganic materials 0.000 description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 5
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920006237 degradable polymer Polymers 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 239000004626 polylactic acid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000013494 PH determination Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- -1 carbide Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001198 elastomeric copolymer Polymers 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1291—Packers; Plugs with mechanical slips for hooking into the casing anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks
Definitions
- FIG. 2 is a cross-sectional view of an embodiment of a plug with a check valve and an adapter mandrel with a secondary ball.
- Fig. 3E is an external side view of a plug with a split ring assembly with multiple partially split (pre-set) rings, pre-test in pre-set position.
- Fig. 3E1 is a partial external side view of the plug of Fig. 3E in a set position, also showing the casing.
- Fig. 3F is an exploded cross-sectional partial illustration of the plug of Fig. 3E, pre-set.
- the disclosed plug dissolves in conjunction with natural wellbore fluid, or operator added fluid, namely an aluminum dissolving or melting medium.
- natural wellbore fluids produced from the formation flow through the plug's aluminum mandrel and about its other aluminum parts and, over a predetermined duration of time, dependent on plug composition, fluid composition, temperature, pH and the like, substantially dissolve the plug's mandrel and other aluminum parts. As the mandrel and other parts dissolve, fluid reaches the remainder of the plug and begins to dissolve the remainder of the plug. The plug dissolves substantially completely.
- inserts 1 19 are provided on the slips 118 as known in the art.
- Slips 1 18 may be made of aluminum, cast iron, ceramic, composite, tungsten carbide, or any combination thereof.
- slips 1 18 are comprised dissolvable of aluminum as set forth in more detail below.
- Inserts 1 19 may be cast iron or other hard suitable material.
- an acid fluid such as an HC1 solution may be introduced into the well to help the solution of the aluminum elements of the cement retainer.
- the cement retainer can be set with wire line or coiled tubing and conventional setting tools.
- the slips may be cast iron in one embodiment (to be milled out) or as set forth in Figs. 4E1 through 4E4, or conventional.
- An anti-seize compound may be used during tool assembly between the inner surface of the mandrel and the outer surface of the ring to provide more accurate shear points, the pressure differentials at which the pins shear and the pump out ring is released, and to reduce "stiction".
- One such material is Loctite® Anti-Seize.
- Such a material may also be used between adjacent rings of the multi-ring split ring assemblies and at surfaces where cones meet the rings of the split ring assemblies to reduce the likelihood of friction interfering with the tool's intended functions when subjected to downhole setting pressures.
- ball 30/130 is "free” and may be dropped into the casing after the tool is set (and after the pump out ring is pumped out, if one is used). In another embodiment, as seen in Figs. 2, 3, 4A, 9A and 9B, ball 30/130 is run in with the tool.
- split ring describes the post set configuration of all three of these embodiments as well as the pre-set configuration of embodiments (1) and (2). All may be used in place of a conventional elastomeric seal element or pack off element.
- split ring assembly typically includes multiple ring elements, but may have a single ring (see Fig. 3D for example).
- continuous (that is, not split in an unset condition) rings 151/152 have breakable separation grooves 154 as shown in Figs. 7A-7C on upper and/or lower surfaces, or lines of multiple weakening holes (not shown).
- a ring may have one or more separation grooves 154. There may be more than two rings, such as four (two on each wedge) or six, etc.
- Separation grooves 154 are shaped and sized so ring or rings 151/152 are continuous and securely held about mandrel (now shown in Figs. 7A-7C) until setting begins, but will preferentially separate along grooves 154 when wedges 122 force rings 151/152 radially outward during setting of the tool.
- the expandable metal rings are under pressure squeezing them outward and the further degradation and softening of the outer surface of the rings permits them to be forced more closely against the inner casing wall, further sealing the outer surface of the rings to the inner casing wall.
- the material of the rings such as frusto-conical rings 222 a 1 - d 1 is different from one ring to the adjacent ring.
- the rings may be made of alternate anodic/cathodic materials. (See Fig. 3F1) Formation or downhole fluids are often electrolytic in nature. Constructing the rings of alternating material with different anodic/cathodic potentials generates electrochemical corrosion.
- Aluminum may be more active than the iron of the casing and act as a sacrificial anode.
- the aluminum of the rings may be an alloy more active than other parts of the tool, including other aluminum parts which they contact or are in electrolytic communication.
- a method of using the disclosed aluminum plug 10/1 10 is to determine the aluminum plug's dissolvablability characteristics, volume of formation fluid flow, fluid temperature and acidity of the formation fluid to determine when the particular aluminum plug being used in the particular well will be sufficiently dissolved after insertion into the well for the subsequent targeted purpose.
- the subsequent targeted purpose may be further completion work without needing to drill out or remove the plug, production of the well without needing to drill out or remove the plug, or permanently leaving the plug in the well.
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)
- Valve Housings (AREA)
Abstract
Selon l'invention, un bouchon de fond de trou à utiliser dans des complétions de puits de pétrole et de gaz constitué d'aluminium se dissout dans les fluides de puits de forage naturels, comporte un joint soluble constitué de bagues fendues en aluminium ou d'un élastomère dégradable, comporte une bague de pompage de secours, et peut être fourni sur le site du puits sous la forme d'un kit à pièces interchangeables pour une adaptation aux besoins du puits, ce qui fournit un bouchon sans intervention dans un puits.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462019679P | 2014-07-01 | 2014-07-01 | |
| US62/019,679 | 2014-07-01 | ||
| US14/677,242 | 2015-04-02 | ||
| US14/677,242 US10119359B2 (en) | 2013-05-13 | 2015-04-02 | Dissolvable aluminum downhole plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016003759A1 true WO2016003759A1 (fr) | 2016-01-07 |
Family
ID=55019847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2015/037636 WO2016003759A1 (fr) | 2014-07-01 | 2015-06-25 | Bouchon de fond de trou en aluminium dissoluble |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2016003759A1 (fr) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522869A (zh) * | 2016-12-30 | 2017-03-22 | 新疆能新科油气技术有限公司 | 井筒投堵器及其安装方法 |
| AU2015398727B2 (en) * | 2014-07-07 | 2018-05-17 | Halliburton Energy Services, Inc. | Downhole tools comprising aqueous-degradable sealing elements of thermoplastic rubber |
| CN109899028A (zh) * | 2019-04-26 | 2019-06-18 | 天津市玛特瑞科技有限公司 | 一种可溶桥塞 |
| CN110439499A (zh) * | 2019-09-05 | 2019-11-12 | 陕西臻易石油技术有限公司 | 适用于速度管柱端部的缓蚀可溶型堵塞器及其去除方法 |
| US10544653B2 (en) | 2017-02-15 | 2020-01-28 | Frac Technology AS | Downhole tool |
| CN111101888A (zh) * | 2019-10-09 | 2020-05-05 | 中国石油化工股份有限公司华东油气分公司 | 一种新型可溶桥塞 |
| CN111492120A (zh) * | 2018-01-29 | 2020-08-04 | 株式会社吴羽 | 分解性井下堵塞器 |
| CN111720086A (zh) * | 2020-07-08 | 2020-09-29 | 中国石油天然气集团有限公司 | 一种撞击式管端堵塞器及使用方法 |
| CN114320213A (zh) * | 2022-03-16 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | 一种用于带压作业的可溶封隔装置 |
| US11371313B2 (en) * | 2019-11-13 | 2022-06-28 | Petro-King Technology Co., Ltd | Hard-sealing soluble bridge plug |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5709269A (en) * | 1994-12-14 | 1998-01-20 | Head; Philip | Dissolvable grip or seal arrangement |
| US20020014339A1 (en) * | 1999-12-22 | 2002-02-07 | Richard Ross | Apparatus and method for packing or anchoring an inner tubular within a casing |
| US20030164237A1 (en) * | 2002-03-01 | 2003-09-04 | Butterfield Charles A. | Method, apparatus and system for selective release of cementing plugs |
| US20050189103A1 (en) * | 2004-02-27 | 2005-09-01 | Smith International, Inc. | Drillable bridge plug |
| US20110003930A1 (en) * | 2008-03-11 | 2011-01-06 | Sergio Brunetti | Biodegradable elastomeric compound |
| US20110048743A1 (en) * | 2004-05-28 | 2011-03-03 | Schlumberger Technology Corporation | Dissolvable bridge plug |
| US7900696B1 (en) * | 2008-08-15 | 2011-03-08 | Itt Manufacturing Enterprises, Inc. | Downhole tool with exposable and openable flow-back vents |
| US20120292053A1 (en) * | 2011-05-19 | 2012-11-22 | Baker Hughes Incorporated | Easy Drill Slip with Degradable Materials |
| US20130240203A1 (en) * | 2009-04-21 | 2013-09-19 | W. Lynn Frazier | Decomposable impediments for downhole tools and methods for using same |
| WO2014098903A1 (fr) * | 2012-12-21 | 2014-06-26 | Halliburton Energy Services, Inc. | Régulation d'écoulement de puits doté d'un actionneur d'acide |
-
2015
- 2015-06-25 WO PCT/US2015/037636 patent/WO2016003759A1/fr active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5709269A (en) * | 1994-12-14 | 1998-01-20 | Head; Philip | Dissolvable grip or seal arrangement |
| US20020014339A1 (en) * | 1999-12-22 | 2002-02-07 | Richard Ross | Apparatus and method for packing or anchoring an inner tubular within a casing |
| US20030164237A1 (en) * | 2002-03-01 | 2003-09-04 | Butterfield Charles A. | Method, apparatus and system for selective release of cementing plugs |
| US20050189103A1 (en) * | 2004-02-27 | 2005-09-01 | Smith International, Inc. | Drillable bridge plug |
| US20110048743A1 (en) * | 2004-05-28 | 2011-03-03 | Schlumberger Technology Corporation | Dissolvable bridge plug |
| US20110003930A1 (en) * | 2008-03-11 | 2011-01-06 | Sergio Brunetti | Biodegradable elastomeric compound |
| US7900696B1 (en) * | 2008-08-15 | 2011-03-08 | Itt Manufacturing Enterprises, Inc. | Downhole tool with exposable and openable flow-back vents |
| US20130240203A1 (en) * | 2009-04-21 | 2013-09-19 | W. Lynn Frazier | Decomposable impediments for downhole tools and methods for using same |
| US20120292053A1 (en) * | 2011-05-19 | 2012-11-22 | Baker Hughes Incorporated | Easy Drill Slip with Degradable Materials |
| WO2014098903A1 (fr) * | 2012-12-21 | 2014-06-26 | Halliburton Energy Services, Inc. | Régulation d'écoulement de puits doté d'un actionneur d'acide |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015398727B2 (en) * | 2014-07-07 | 2018-05-17 | Halliburton Energy Services, Inc. | Downhole tools comprising aqueous-degradable sealing elements of thermoplastic rubber |
| US10240427B2 (en) | 2014-07-07 | 2019-03-26 | Halliburton Energy Services, Inc. | Downhole tools comprising aqueous-degradable sealing elements |
| US10260309B2 (en) | 2014-07-07 | 2019-04-16 | Halliburton Energy Services, Inc. | Downhole tools comprising aqueous-degradable sealing elements of thermoplastic rubber |
| US10370930B2 (en) | 2014-07-07 | 2019-08-06 | Halliburton Energy Services, Inc. | Downhole tools comprising aqueous-degradable elastomer sealing elements with carbodiimide |
| CN106522869A (zh) * | 2016-12-30 | 2017-03-22 | 新疆能新科油气技术有限公司 | 井筒投堵器及其安装方法 |
| US10544653B2 (en) | 2017-02-15 | 2020-01-28 | Frac Technology AS | Downhole tool |
| CN111492120A (zh) * | 2018-01-29 | 2020-08-04 | 株式会社吴羽 | 分解性井下堵塞器 |
| US11346178B2 (en) | 2018-01-29 | 2022-05-31 | Kureha Corporation | Degradable downhole plug |
| CN109899028A (zh) * | 2019-04-26 | 2019-06-18 | 天津市玛特瑞科技有限公司 | 一种可溶桥塞 |
| CN110439499A (zh) * | 2019-09-05 | 2019-11-12 | 陕西臻易石油技术有限公司 | 适用于速度管柱端部的缓蚀可溶型堵塞器及其去除方法 |
| CN111101888A (zh) * | 2019-10-09 | 2020-05-05 | 中国石油化工股份有限公司华东油气分公司 | 一种新型可溶桥塞 |
| US11371313B2 (en) * | 2019-11-13 | 2022-06-28 | Petro-King Technology Co., Ltd | Hard-sealing soluble bridge plug |
| CN111720086A (zh) * | 2020-07-08 | 2020-09-29 | 中国石油天然气集团有限公司 | 一种撞击式管端堵塞器及使用方法 |
| CN111720086B (zh) * | 2020-07-08 | 2024-01-19 | 中国石油天然气集团有限公司 | 一种撞击式管端堵塞器及使用方法 |
| CN114320213A (zh) * | 2022-03-16 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | 一种用于带压作业的可溶封隔装置 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10352125B2 (en) | Downhole plug having dissolvable metallic and dissolvable acid polymer elements | |
| WO2016003759A1 (fr) | Bouchon de fond de trou en aluminium dissoluble | |
| US10975655B2 (en) | Self-removing plug for pressure isolation in tubing of well | |
| US20190078414A1 (en) | Dissolvable aluminum downhole plug | |
| CA3092898C (fr) | Bouchon de fracturation a asservissement pour l'isolation et suppression de la pression dans un tubage de puits | |
| US9835003B2 (en) | Frac plug | |
| CA2494290C (fr) | Outil de fond jetable muni d'un element de compression segmente et methode connexe | |
| US9217319B2 (en) | High-molecular-weight polyglycolides for hydrocarbon recovery | |
| US20180363409A1 (en) | Dissolvable downhole frac tool having a single slip | |
| US9739107B2 (en) | Removable downhole article with frangible protective coating, method of making, and method of using the same | |
| NO20171624A1 (en) | Frac plug | |
| AU2017225543A1 (en) | Frac plug | |
| US11434715B2 (en) | Frac plug with collapsible plug body having integral wedge and slip elements | |
| US11293256B2 (en) | Sealing element support rings for downhole packers | |
| US20240035356A1 (en) | Pump out stage cementing system | |
| CA2975842A1 (fr) | Assemblages d'etancheisation de bague fendue |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15815248 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 15815248 Country of ref document: EP Kind code of ref document: A1 |