CN106082807A - Oil (water) well envelope is altered, leak stopping system is prepared and application process - Google Patents

Oil (water) well envelope is altered, leak stopping system is prepared and application process Download PDF

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Publication number
CN106082807A
CN106082807A CN201610414218.0A CN201610414218A CN106082807A CN 106082807 A CN106082807 A CN 106082807A CN 201610414218 A CN201610414218 A CN 201610414218A CN 106082807 A CN106082807 A CN 106082807A
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China
Prior art keywords
oil
water
well
stifled
closure
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CN201610414218.0A
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Chinese (zh)
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CN106082807B (en
Inventor
张羽
张宗晓
杨广雷
徐燕
张正威
张上
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Langfang Rui Lan Petroleum Technology Co Ltd
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Langfang Rui Lan Petroleum Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Sealing Material Composition (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

Oil (water) well envelope is altered, leak stopping system prepares and application process is field of oilfield chemistry, it compensate for oil field oil (water) well sealing skill, the deficiency of sealing current state of technology, it is made up of pre-stifled system and closure system two parts, and closure system is made up of following material component: oil well G class g cement 40 50%, ultrafine slag powder 15 20%, polymer dispersion powder 8 15%, SILICA FUME 8%, UEA H extender 12%, polyacrylic fibre 2%, USZ drag reducer 0.2 0.5%, GH 1 (or GH 7) retarder 0.1 1.5%；Pre-stifled system has pre-stifled system 1 and pre-stifled system 2 two types；System dosing of the present invention is simple, and rheological characteristic, injection are good, and system plastic, that hardening time is adjustable is controlled, construction safety；Be applicable to oil (water) well under the complex geological conditions such as loose in debt stratum, fractured reservoir and seam, hole type limestone formation seal alter, leak stopping, sealing operation, be also suitable in drilling process missing greatly the leak stopping returned.

Description

Oil (water) well envelope is altered, leak stopping system is prepared and application process
Technical field
The present invention relates to field of oilfield chemistry, especially oil (water) well envelope is altered, leak stopping system is prepared and application process.
Technical background
Oil field is leaked for oily (water) well set, the outer closure used by closure process altered and no longer have Development volue oil reservoir of pipe Cement class system that system is mainly made up of oil-well cement and additive thereof and the resinae body of gel-type resin and modifier thereof System.
Cement class system defect is, volume contraction after solidification, poor with stratum and set tube wall cementing properties；Resinae blocks System is difficult to adjust hardening time, and range of application is limited, and construction safety risk is the biggest；Particularly with loose stratum in debt, split Seam property stratum and seam hole type limestone formation, be often difficult to resident because of blocking agent, and the most existing closure system defect blocks operation Blocking agent is with big, and success rate is low, causes such oil (water) well to can not get effectively administering and scrapping.
Summary of the invention
It is an object of the invention to provide system dosing oil (water) well envelope simple, construction safety alter, the preparation of leak stopping system and Application process, it compensate for oil field oil (water) well sealing skill, the deficiency of sealing current state of technology, it is an object of the invention to this Sample realizes, and it is made up of pre-stifled system and closure system two parts, and closure system is made up of following material component: oil well G level Cement 40-50%, ultrafine slag powder 15-20%, polymer dispersion powder 8-15%, SILICA FUME 8%, UEA-H extender 12%, polypropylene Acid fiber 2%, USZ drag reducer 0.2-0.5%, GH-1 (or GH-7) retarder 0.1-1.5%；The preparation method of closure system is to press Above-mentioned component and ratio put in blender successively and mix thoroughly, obtain closure system siccative.During on-the-spot application, by closure system dry powder Being oar body with clear water mix and blend, the ratio of mud is 0.6-1.2.
Described pre-stifled system, it is made up of pre-stifled system 1 and pre-stifled system 2 two types, pre-stifled system 1 each component Accounting for reaction system mass percent is: acrylamide 7-10%, DMAA ammonio methacrylate 3-5%, modified starch 2- 4%, N, N '-methene base bisacrylamide 0.02-0.08%, initiator are (for persulfate, azo diisobutyl amidine salt, the tert-butyl group Hydrogen peroxide one therein, depending on temperature conditions) 0.02-0.06%, surplus be clear water, its static gelation time 0.5- 12 hours controlled, maximum 105 hours of dynamic gelling time；
Described pre-stifled system 2, its each component accounts for system percentage ratio: water soluble amino carboxylic acid resin 3-6%, closure system dry powder 5-20%, surplus are clear water, and its gelling time 0.5-3 hour is controlled.
The application process of the present invention is, the first step clamp-ons 5-30m to oil (water) well purpose well section3Pre-stifled system, on ground Form high-strength gel under the conditions of Ceng or plastic body realizes preliminary soft closure, improve the presence of follow-up closure system, for second step Closure creates conditions, and second step clamp-ons 4-15m to oil (water) well purpose well section3Closure system, form tool under formation conditions Have micro-swollen, cementing properties good, shock proof rigidity firming body, it is achieved the closure of the high intensity of purpose well section.
The performance of closure system is, closure system dry powder is oar body with clear water mix and blend, its slurry proportion 1.35- 1.77, slurry do not settles, not bleed, and 50-580 minute hardening time is controlled；Oar body solidifies its firming body after 24 hours, pressure resistance Degree >=25MPa, rupture strength >=15MPa, linear expansion rate >=0.3%.
Meaning of the present invention is: system dosing of the present invention is simple, and rheological characteristic, injection are good, and system plastic, hardening time can Adjust controlled, construction safety；The present invention is applicable to the complexity such as loose stratum in debt, fractured reservoir and seam, hole type limestone formation Under geological conditions oil (water) well envelope alter, leak stopping, sealing operation, be also suitable in drilling process missing greatly the leak stopping returned.
Detailed description of the invention
Embodiment 1, the present invention are made up of pre-stifled system and closure system two parts, and closure system is by following material component group Become: oil well G class g cement 40-50%, ultrafine slag powder 15-20%, polymer dispersion powder 8-15%, SILICA FUME 8%, UEA-H extender 12%, polyacrylic fibre 2%, USZ drag reducer 0.2-0.5%, GH-1 (or GH-7) retarder 0.1-1.5%；Its preparation method is, Put in blender successively in above-mentioned component and ratio and mix thoroughly, obtain closure system siccative；During on-the-spot application, closure system is done Powder and clear water mix and blend are oar body, and the ratio of mud is 0.6-1.2.
Embodiment 2, described pre-stifled system, have pre-stifled system 1 and pre-stifled system 2 two types, pre-stifled system 1 each component Accounting for reaction system mass percent is: acrylamide 7-10%, DMAA ammonio methacrylate 3-5%, modified starch 2- 4%, N, N '-methene base bisacrylamide 0.02-0.08%, initiator are (for persulfate, azo diisobutyl amidine salt, the tert-butyl group Hydrogen peroxide one therein, depending on temperature conditions) 0.02-0.06%, surplus be clear water, its static gelation time 0.5- 12 hours controlled, maximum 105 hours of dynamic gelling time.
Embodiment 3, described pre-stifled system 2, each component accounts for system percentage ratio: water soluble amino carboxylic acid resin 3-6%, envelope Stifled system dry powder 5-20%, surplus are clear water, and its gelling time 0.5-3 hour is controlled.
Embodiment 4, the application process of the present invention are that the first step clamp-ons 5-30m to oil (water) well purpose well section3Pre-stifled body System, forms high-strength gel under formation conditions or plastic body realizes preliminary soft closure, improve the presence of follow-up closure system, for Second step closure creates conditions, and second step clamp-ons 4-15m to oil (water) well purpose well section3Closure system, under formation conditions Formation have micro-swollen, cementing properties good, shock proof rigidity firming body, it is achieved the closure of the high intensity of purpose well section.
Embodiment 5, the performance of closure system are that closure system dry powder is oar body with clear water mix and blend, its slurry proportion 1.35-1.77, slurry do not settles, not bleed, and 50-580 minute hardening time is controlled；Oar body solidifies its firming body after 24 hours, Comprcssive strength >=25MPa, rupture strength >=15MPa, linear expansion rate >=0.3%.

Claims (4)

1. oil (water) well envelope alter, leak stopping system, it is characterized in that: it by pre-stifled system and closure system two parts form, occluding body System is made up of following material component: oil well G class g cement 40-50%, ultrafine slag powder 15-20%, polymer dispersion powder 8-15%, micro- Silica flour 8%, UEA-H extender 12%, polyacrylic fibre 2%, USZ drag reducer 0.2-0.5%, GH-1 (or GH-7) retarder 0.1- 1.5%；Its preparation method is, puts in blender successively in above-mentioned component and ratio and mixes thoroughly, obtains closure system siccative；On-the-spot During application, being oar body by closure system dry powder and clear water mix and blend, the ratio of mud is 0.6-1.2.
Oil the most according to claim 1 (water) well envelope is altered, leak stopping system, it is characterized in that: pre-stifled system is by pre-stifled system 1 Forming with pre-stifled system 2 two types, pre-stifled system 1 each component accounts for reaction system mass percent and is: acrylamide 7-10%, DMAA ammonio methacrylate 3-5%, modified starch 2-4%, N, N '-methene base bisacrylamide 0.02-0.08%, draw Send out agent (for persulfate, azo diisobutyl amidine salt, tert-butyl hydroperoxide one therein, depending on temperature conditions) 0.02-0.06%, surplus are clear water, and its static gelation time 0.5-12 hour is controlled, maximum 105 hours of dynamic gelling time；In advance The stifled each component of system 2 accounts for system percentage ratio: water soluble amino carboxylic acid resin 3-6%, closure system dry powder 5-20%, surplus are clear Water, its gelling time 0.5-3 hour is controlled.
3. described in claim 1 oil (water) well envelope alter, the application process of leak stopping system, it is characterized in that: the first step to oil (water) well Purpose well section clamp-ons 5-30m3Pre-stifled system, form high-strength gel under formation conditions or plastic body realize preliminary soft closure, Improving the presence of follow-up closure system, create conditions for second step closure, second step clamp-ons 4-to oil (water) well purpose well section 15m3Closure system, under formation conditions formed have micro-swollen, cementing properties good, shock proof rigidity firming body, it is achieved purpose The high intensity closure of well section.
4. oil (water) well envelope described in claim 1 alter, the performance of leak stopping system, it is characterized in that: closure system dry powder and clear water mix Closing stirring in oar body, its slurry proportion 1.35-1.77, slurry do not settles, not bleed, and 50-580 minute hardening time is controlled；Oar Body solidifies its firming body after 24 hours, comprcssive strength >=25MPa, rupture strength >=15MPa, linear expansion rate >=0.3%.
CN201610414218.0A 2016-06-15 2016-06-15 Oil（Water）Well envelope is altered, leak stopping system prepares and application process Active CN106082807B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106967393A (en) * 2017-04-19 2017-07-21 中国石油集团川庆钻探工程有限公司工程技术研究院 A kind of curable low-density plugging operation liquid and preparation method thereof
CN107033864A (en) * 2017-05-14 2017-08-11 石磊 A kind of preparation method of sealing agent
CN108979585A (en) * 2018-07-27 2018-12-11 中国石油天然气股份有限公司 A kind of method for blocking of casing damage well set breakpoint
WO2019016304A1 (en) 2017-07-20 2019-01-24 Danmarks Tekniske Universitet Quick-setting elastomer plugging composition
CN109516731A (en) * 2018-12-13 2019-03-26 广西宏发海绵城市科技有限公司 The production technology of inorganic water-permeable and water retention environmental protection brick
CN113480254A (en) * 2021-06-01 2021-10-08 陕西弘大众为石油科技有限公司 Composite material plugging agent for water plugging and leakage plugging of horizontal well and preparation method thereof

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CN102492404A (en) * 2011-12-13 2012-06-13 四川嘉华企业（集团）股份有限公司 Anti-blowby cement slurry
CN102504781A (en) * 2011-10-14 2012-06-20 中国石油天然气集团公司 Oil and water well sealing and plugging agent and preparation method thereof
CN103045214A (en) * 2013-01-16 2013-04-17 西南石油大学 Plugging thixotropic cement paste for oil-gas well and preparation method for same
CN103232838A (en) * 2013-04-24 2013-08-07 新疆克拉玛依市采丰实业有限责任公司 Preparation and application method of cement profile control agent
CN104109514A (en) * 2014-05-15 2014-10-22 中国石油化工股份有限公司 Plugging agent system for permanently plugging multilayer low-pressure large-tunnel oil reservoir and technology using the same

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Publication number Priority date Publication date Assignee Title
US20090143257A1 (en) * 2007-12-03 2009-06-04 Ling Kong Teng Methods and Compositions for Controlling Water Production
CN102504781A (en) * 2011-10-14 2012-06-20 中国石油天然气集团公司 Oil and water well sealing and plugging agent and preparation method thereof
CN102492404A (en) * 2011-12-13 2012-06-13 四川嘉华企业（集团）股份有限公司 Anti-blowby cement slurry
CN103045214A (en) * 2013-01-16 2013-04-17 西南石油大学 Plugging thixotropic cement paste for oil-gas well and preparation method for same
CN103232838A (en) * 2013-04-24 2013-08-07 新疆克拉玛依市采丰实业有限责任公司 Preparation and application method of cement profile control agent
CN104109514A (en) * 2014-05-15 2014-10-22 中国石油化工股份有限公司 Plugging agent system for permanently plugging multilayer low-pressure large-tunnel oil reservoir and technology using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106967393A (en) * 2017-04-19 2017-07-21 中国石油集团川庆钻探工程有限公司工程技术研究院 A kind of curable low-density plugging operation liquid and preparation method thereof
CN107033864A (en) * 2017-05-14 2017-08-11 石磊 A kind of preparation method of sealing agent
WO2019016304A1 (en) 2017-07-20 2019-01-24 Danmarks Tekniske Universitet Quick-setting elastomer plugging composition
CN108979585A (en) * 2018-07-27 2018-12-11 中国石油天然气股份有限公司 A kind of method for blocking of casing damage well set breakpoint
CN109516731A (en) * 2018-12-13 2019-03-26 广西宏发海绵城市科技有限公司 The production technology of inorganic water-permeable and water retention environmental protection brick
CN113480254A (en) * 2021-06-01 2021-10-08 陕西弘大众为石油科技有限公司 Composite material plugging agent for water plugging and leakage plugging of horizontal well and preparation method thereof

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