CN104695895A - Plugging method integrating channel blocking and leakage plugging - Google Patents
Plugging method integrating channel blocking and leakage plugging Download PDFInfo
- Publication number
- CN104695895A CN104695895A CN201410818172.XA CN201410818172A CN104695895A CN 104695895 A CN104695895 A CN 104695895A CN 201410818172 A CN201410818172 A CN 201410818172A CN 104695895 A CN104695895 A CN 104695895A
- Authority
- CN
- China
- Prior art keywords
- well section
- sleeve pipe
- plugging
- leakage loss
- pipe leakage
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000000903 blocking effect Effects 0.000 title claims abstract description 22
- 239000004568 cement Substances 0.000 claims abstract description 25
- 239000003129 oil well Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000010354 integration Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002981 blocking agent Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 241000425571 Trepanes Species 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005465 channeling Effects 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000805 composite resin Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 102000010637 Aquaporins Human genes 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035515 penetration 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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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)
- Sealing Material Composition (AREA)
Abstract
The invention belongs to a method for plugging a casing leakage well section and external casing channeling in an oil well, and particularly relates to a plugging method integrating channel blocking and leakage plugging. According to the plugging method integrating channel blocking and leakage plugging, a chemical composite plugging agent RB/H-I, high-temperature resistant composite resin and G-level oil well cement are adopted and combined to plug the casing leakage well section and the external casing channeling. The plugging method has the benefits as follows: the plugging method is simple, the construction is convenient, the plugging effect is good, an oil layer does not leak water during production, the plugging success rate for each time is up to 98%, and the production benefits of the oil well is increased.
Description
Technical field
The invention belongs to a kind of sleeve pipe leakage loss well section in oil well and pipe are altered outward and carry out method for blocking, particularly a kind of sealing skill integration method for blocking.
Background technology
At present, because of factors such as geology in oilfield development process, cause the sleeve pipe leakage loss in oil well, steam injection exploitation one is taken turns and the Behavior of Hardened Cement Paste outside sleeve pipe will be caused to damage, cause altering outside pipe, because sleeve pipe leakage loss and outer the altering of pipe cause top to alter the end under water waterbornely to alter, make oil well High water cut, have a strong impact on oil well production, traditional is utilize squeeze method method for blocking to altering method for blocking outside sleeve pipe leakage loss well section and pipe, because cement density large fluidity is good, penetration is strong, clamp-on how much cement, capital is lost in a large number along loose area, near wellbore zone storage is little, even if formation some strength, under 10MPa pressure promotes, also move after causing cement, cause new crack, thus repeatedly construct and be also difficult to reach construction effect, one time shutoff success rate can only reach 40%.
Summary of the invention
In order to overcome the problems referred to above, the invention provides a kind of sealing skill integration method for blocking, leak stopping is exactly that sleeve pipe leakage loss well section in shutoff oil well and perforation envelope alter well section, it is exactly that the damage of shutoff sleeve pipe external cause Behavior of Hardened Cement Paste causes pipe to alter outward that envelope is altered, envelope is altered general employing and to be altered the end on top under water and waterbornely alter passage shale layer position perforation, carry out envelope to alter, sealing skill integration method for blocking adopts chemically composited blocking agent RB/H-I, high temperature resistant compound resin and G level oil well cement combine and carry out shutoff to sleeve pipe leakage loss well section and outer the altering of pipe, chemically composited blocking agent RB/H-I, shutoff carrys out aquaporin, thermal production well formation depletion is seriously played stifled temporarily simultaneously, fill up formation depletion and carry out aquaporin, owing to there being good mobility, shutoff distance, easily enter high-permeability reservoir, water-swellable, the barrier of strength of stability can be formed in water layer, stop the diffusion of water, meet oil to dissolve simultaneously, do not block duct, space, ensure oil reservoir not water outlet in production, high temperature resistant compound resin, to stop that high temperature steam injection damages hard blocking agent, G level oil well cement, strengthen near wellbore zone plugging strength, shutoff space and duct, sealing skill integration method for blocking is adopted to prove altering the construction carrying out shutoff outside sleeve pipe leakage loss well section and pipe by more than 300 mouthful, Liaohe Oil Field oil well, one time shutoff success rate reaches more than 98%.
The present invention solves the technical scheme that its technical problem takes: a kind of sealing skill integration method for blocking, this sealing skill integration method for blocking adopts chemically composited blocking agent RB/H-I, high temperature resistant compound resin and G level oil well cement combine and carry out shutoff to sleeve pipe leakage loss well section and outer the altering of pipe, its special character is: method for blocking alters upper 100 meters of of well section by under plugging tubing string to sleeve pipe leakage loss well section and perforation envelope, close wellhead assembly, alter well section by plugging tubing string to sleeve pipe leakage loss well section and perforation envelope with pump truck and clamp-on chemically composited blocking agent RB/H-I, 150-180 ton, blocking radius will reach more than 3 meters, pressure reaches 8-10MPa, alter well section to sleeve pipe leakage loss well section and perforation envelope and clamp-on high temperature resistant compound resin 2-3 ton, altering well section to sleeve pipe leakage loss well section and perforation envelope again, to clamp-on density be 18.5g/cm
3g level oil well cement 12-15 ton after, clear water alters the G level oil well cement top of finally clamp-oning more than well section 10 meters of cement surface to sleeve pipe leakage loss well section and perforation envelope is squeezed in sleeve pipe, Hou Ning is after 24 hours, trip out plugging tubing string, again drilling out tubing string is lowered into sleeve pipe leakage loss well section and perforation envelope alters the cement surface at upper 100 meters of of well section, cement trepan in sleeve pipe is fallen to take ground to, finally alter well section with pump truck to sleeve pipe leakage loss well section and perforation envelope and suppress 15MPa, termination of pumping car is after 30 minutes, and Pressure Drop 14.5-15MPa is that shutoff is qualified.
The invention has the beneficial effects as follows: method for blocking is simple, easy construction, and plugging effect is good, ensure oil reservoir not water outlet in production, one time shutoff success rate reaches 98/%, improves oil well production benefit.
Detailed description of the invention
Method for blocking: be alter upper 100 meters of of well section by under plugging tubing string to sleeve pipe leakage loss well section and perforation envelope, close wellhead assembly, alter well section by plugging tubing string to sleeve pipe leakage loss well section and perforation envelope with pump truck and clamp-on chemically composited blocking agent RB/H-I, 150-180 ton, blocking radius will reach more than 3 meters, pressure reaches 8-10MPa, alters well section clamp-on high temperature resistant compound resin 2-3 ton to sleeve pipe leakage loss well section and perforation envelope, then altering well section to sleeve pipe leakage loss well section and perforation envelope, to clamp-on density be 18.5g/cm
3g level oil well cement 12-15 ton after, clear water alters the G level oil well cement top of finally clamp-oning more than well section 10 meters of G level oil well cement face to sleeve pipe leakage loss well section and perforation envelope is squeezed in sleeve pipe, Hou Ning is after 24 hours, trip out plugging tubing string, again drilling out tubing string is lowered into sleeve pipe leakage loss well section and perforation envelope alters the cement surface at upper 100 meters of of well section, cement trepan in sleeve pipe is fallen to take ground to, finally alter well section place with pump truck to sleeve pipe leakage loss well section and perforation envelope and suppress 15MPa, termination of pumping car is after 30 minutes, and Pressure Drop 14.5-15MPa is that shutoff is qualified.
Claims (1)
1. a sealing skill integration method for blocking, this sealing skill integration method for blocking adopts chemically composited blocking agent RB/H-I, high temperature resistant compound resin and G level oil well cement combine and carry out shutoff to sleeve pipe leakage loss well section and outer the altering of pipe, it is characterized in that: method for blocking alters upper 100 meters of of well section by under plugging tubing string to sleeve pipe leakage loss well section and perforation envelope, close wellhead assembly, alter well section by plugging tubing string to sleeve pipe leakage loss well section and perforation envelope with pump truck and clamp-on chemically composited blocking agent RB/H-I, 150-180 ton, blocking radius will reach more than 3 meters, pressure reaches 8-10MPa, alter well section to sleeve pipe leakage loss well section and perforation envelope and clamp-on high temperature resistant compound resin 2-3 ton, altering well section to sleeve pipe leakage loss well section and perforation envelope again, to clamp-on density be 18.5g/cm
3g level oil well cement 12-15 ton after, clear water alters the G level oil well cement top of finally clamp-oning more than well section 10 meters of cement surface to sleeve pipe leakage loss well section and perforation envelope is squeezed in sleeve pipe, Hou Ning is after 24 hours, trip out plugging tubing string, again drilling out tubing string is lowered into sleeve pipe leakage loss well section and perforation envelope alters the cement surface at upper 100 meters of of well section, cement trepan in sleeve pipe is fallen to take ground to, finally alter well section with pump truck to sleeve pipe leakage loss well section and perforation envelope and suppress 15MPa, termination of pumping car is after 30 minutes, and Pressure Drop 14.5-15MPa is that shutoff is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818172.XA CN104695895A (en) | 2014-12-14 | 2014-12-14 | Plugging method integrating channel blocking and leakage plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818172.XA CN104695895A (en) | 2014-12-14 | 2014-12-14 | Plugging method integrating channel blocking and leakage plugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104695895A true CN104695895A (en) | 2015-06-10 |
Family
ID=53343398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410818172.XA Pending CN104695895A (en) | 2014-12-14 | 2014-12-14 | Plugging method integrating channel blocking and leakage plugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104695895A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257241A (en) * | 2015-09-24 | 2016-01-20 | 中国石油天然气股份有限公司 | Method for cementing plug of horizontal well |
| CN105443071A (en) * | 2015-12-07 | 2016-03-30 | 中国石油天然气股份有限公司 | Process for blocking underwater channeling of roof |
| CN107701143A (en) * | 2016-08-09 | 2018-02-16 | 中国石油化工股份有限公司 | A kind of multi-section multi-layer sealing skill devices and methods therefor based on one-trip string |
| CN108756806A (en) * | 2018-04-26 | 2018-11-06 | 四川光亚聚合物化工有限公司 | Pipe leakage administering method is altered outside a kind of production of hydrocarbons well casing |
| CN109403936A (en) * | 2018-11-15 | 2019-03-01 | 中国石油天然气股份有限公司 | Process method and device for sealing high-temperature and high-pressure leakage well |
| CN110725663A (en) * | 2019-11-06 | 2020-01-24 | 中国石油天然气股份有限公司 | Chemical plugging process for well without damage of fixed pipe column sleeve of bridge plug |
| CN111075393A (en) * | 2019-12-18 | 2020-04-28 | 中国石油天然气股份有限公司 | Oil-gas field casing damage well long well section plugging resin repair process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5957205A (en) * | 1997-08-18 | 1999-09-28 | Alberta Oil Sands Technology And Research Authority | Sand exclusion liner and method of using the same |
| CN1400376A (en) * | 2002-09-12 | 2003-03-05 | 大庆油田有限责任公司 | Cement band pressure curing channelling-blocking method |
| CN101769138A (en) * | 2010-01-07 | 2010-07-07 | 东莞天佳塑胶五金制品有限公司 | Leak-proof method of circulating fluid of oil well |
-
2014
- 2014-12-14 CN CN201410818172.XA patent/CN104695895A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5957205A (en) * | 1997-08-18 | 1999-09-28 | Alberta Oil Sands Technology And Research Authority | Sand exclusion liner and method of using the same |
| CN1400376A (en) * | 2002-09-12 | 2003-03-05 | 大庆油田有限责任公司 | Cement band pressure curing channelling-blocking method |
| CN101769138A (en) * | 2010-01-07 | 2010-07-07 | 东莞天佳塑胶五金制品有限公司 | Leak-proof method of circulating fluid of oil well |
Non-Patent Citations (2)
| Title |
|---|
| 王龙: "中121井化学固结+交联成膜技术承压堵漏技术浅析", 《西部探矿工程》 * |
| 闫新华等: "HZ-D化学堵剂封堵技术研究", 《消费导刊》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257241A (en) * | 2015-09-24 | 2016-01-20 | 中国石油天然气股份有限公司 | Method for cementing plug of horizontal well |
| CN105257241B (en) * | 2015-09-24 | 2018-03-09 | 中国石油天然气股份有限公司 | Method for cementing plug of horizontal well |
| CN105443071A (en) * | 2015-12-07 | 2016-03-30 | 中国石油天然气股份有限公司 | Process for blocking underwater channeling of roof |
| CN107701143A (en) * | 2016-08-09 | 2018-02-16 | 中国石油化工股份有限公司 | A kind of multi-section multi-layer sealing skill devices and methods therefor based on one-trip string |
| CN107701143B (en) * | 2016-08-09 | 2019-08-30 | 中国石油化工股份有限公司 | A kind of multi-section multi-layer sealing skill devices and methods therefor based on one-trip string |
| CN108756806A (en) * | 2018-04-26 | 2018-11-06 | 四川光亚聚合物化工有限公司 | Pipe leakage administering method is altered outside a kind of production of hydrocarbons well casing |
| CN109403936A (en) * | 2018-11-15 | 2019-03-01 | 中国石油天然气股份有限公司 | Process method and device for sealing high-temperature and high-pressure leakage well |
| CN109403936B (en) * | 2018-11-15 | 2021-01-01 | 中国石油天然气股份有限公司 | Process method and device for sealing high-temperature and high-pressure leakage well |
| CN110725663A (en) * | 2019-11-06 | 2020-01-24 | 中国石油天然气股份有限公司 | Chemical plugging process for well without damage of fixed pipe column sleeve of bridge plug |
| CN110725663B (en) * | 2019-11-06 | 2022-02-01 | 中国石油天然气股份有限公司 | Chemical plugging process for well without damage of fixed pipe column sleeve of bridge plug |
| CN111075393A (en) * | 2019-12-18 | 2020-04-28 | 中国石油天然气股份有限公司 | Oil-gas field casing damage well long well section plugging resin repair process |
| CN111075393B (en) * | 2019-12-18 | 2021-11-30 | 中国石油天然气股份有限公司 | Oil-gas field casing damage well long well section plugging resin repair process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 124010, room 1, unit 9, building 501, Lake New Town, Xinglongtai, Liaoning, Panjin Applicant after: Wang Pingping Address before: 124010, room 1, unit 9, Chang Lake New District, Xinglongtai, Liaoning, Panjin 501, China Applicant before: Wang Pingping |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |