RU2107158C1 - Method for isolating zones of saturation and inflow of brine water into well - Google Patents

Method for isolating zones of saturation and inflow of brine water into well Download PDF

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Publication number
RU2107158C1
RU2107158C1 RU96115612A RU96115612A RU2107158C1 RU 2107158 C1 RU2107158 C1 RU 2107158C1 RU 96115612 A RU96115612 A RU 96115612A RU 96115612 A RU96115612 A RU 96115612A RU 2107158 C1 RU2107158 C1 RU 2107158C1
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RU
Russia
Prior art keywords
stage
butyl rubber
well
inflow
injected
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Application number
RU96115612A
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Russian (ru)
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RU96115612A (en
Inventor
Олег Владимирович Грызак
Александр Ратикович Моргулов
Анатолий Александрович Хачиян
Георгий Иванович Храмогин
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Олег Владимирович Грызак
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Priority to RU96115612A priority Critical patent/RU2107158C1/en
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Publication of RU2107158C1 publication Critical patent/RU2107158C1/en
Publication of RU96115612A publication Critical patent/RU96115612A/en

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Abstract

FIELD: oil and gas production industry. SUBSTANCE: this can be used in carrying out isolating and restoring operations during overhaul repair of wells. According to method, injected into bed stage-by-stage are two isolating compounds which interact to produce sediment. Injected at first stage successively is polymeric compound having following components, mas.pts: butyl rubber, 0.86; asbestos, 0.12; paraquinlodioxine, 0.02; surface-active matter, 0.3-0.5; and cement slurry. Injected at second state is pure polymer, that is butyl rubber. EFFECT: higher efficiency.

Description

Изобретение относится к нефтегазодобывающей промышленности и может быть использовано при проведении изоляционно-восстановительных работ при капитальном ремонте скважин. The invention relates to the oil and gas industry and can be used for insulation and restoration work during the overhaul of wells.

Известен способ изоляции водопритоков с закачкой в обрабатываемую зону цементных суспензий [1]. A known method of isolating water inflows with injection into the treated zone of cement slurries [1].

Наиболее близким по технической сущности и достигаемому результату к предлагаемому изобретению является способ изоляции зон поглощения и притока пластовых вод, включающий последовательную закачку в пласт двух изоляционных составов, взаимодействующих с образованием закупоривающего осадка [2]. The closest in technical essence and the achieved result to the proposed invention is a method of isolating the absorption zones and inflow of formation water, which includes the sequential injection into the reservoir of two insulation compositions that interact with the formation of an obstruction sediment [2].

В основу изобретения поставлена задача обеспечения достаточной изоляции малых по сечению трещин, практически исключая поступление пластовых вод в скважину в течение длительного времени. The basis of the invention is the task of ensuring sufficient insulation of small cross-sections of cracks, virtually eliminating the flow of formation water into the well for a long time.

Поставленная задача решается за счет того, что способ изоляции зон поглощения и притока пластовых вод в скважину, включающий постадийную закачку в пласт двух изоляционных составов, взаимодействующих с образованием закупоривающего осадка, предусматривает на первой стадии последовательную закачку полимерного состава, содержащего, мас.ч.: бутилкаучук 0,86, асбест 0,12, парахинолдиоксин 0,02, поверхностно-активное вещество 0,3-0,5 и цементный раствор, а на второй стадии закачивают чистый полимер - бутилкаучук. The problem is solved due to the fact that the method of isolating the zones of absorption and inflow of formation water into the well, which includes the step-by-step injection of two insulation compositions into the formation, interacting with the formation of a plugging deposit, involves the sequential injection of a polymer composition containing, by weight, in the first stage: butyl rubber 0.86, asbestos 0.12, paraquinol dioxin 0.02, surfactant 0.3-0.5 and cement mortar, and in the second stage, a pure polymer, butyl rubber, is pumped.

Пример. Для изоляции зон поглощения и притока пластовых вод в скважину на первой стадии закачивают полимерный состав содержащий, мас.ч.: бутилкаучук 0,86, асбест 0.12, парахинолдиоксин 0,02, поверхностно-активное вещество 0,4, затем закачивают цементный раствор, а на второй стадии закачивают бутилкаучук. После указанной обработки проницаемость керна уменьшилась на 12 mg. Example. To isolate the zones of absorption and flow of formation water into the well at the first stage, a polymer composition is pumped containing, parts by weight: butyl rubber 0.86, asbestos 0.12, paraquinol dioxin 0.02, surfactant 0.4, then cement mortar is pumped, and in the second stage, butyl rubber is pumped. After this treatment, core permeability decreased by 12 mg.

Изобретение позволяет повысить качество изоляции зон поглощения и притока пластовых вод в скважину, увеличить межремонтный период, а также снизить себестоимость ремонтно-изоляционных работ. EFFECT: invention improves the quality of isolation of absorption zones and formation water inflow into a well, increases the overhaul period, and also reduces the cost of repair and insulation works.

Claims (1)

Способ изоляции зон поглощения и притока пластовых вод в скважину, включающий постадийную закачку в пласт двух изоляционных составов, взаимодействующих с образованием закупоривающего осадка, отличающийся тем, что на первой стадии последовательно закачивают полимерный состав, содержащий, мас. ч.:
Бутилкаучук - 0,86
Асбест - 0,12
Парахинолдиоксин - 0,02
Поверхностно-активное вещество (ПАВ) - 0,3 - 0,5
и цементный раствор, а на второй стадии закачивают чистый полимер - бутилкаучук.A method of isolating the zones of absorption and inflow of formation water into the well, including the stepwise injection of two insulation compositions into the formation, interacting with the formation of a plugging deposit, characterized in that at the first stage the polymer composition is sequentially injected, containing, by weight hours:
Butyl rubber - 0.86
Asbestos - 0.12
Paraquinol dioxin - 0.02
Surfactant (surfactant) - 0.3 - 0.5
and cement mortar, and in the second stage a pure polymer, butyl rubber, is pumped.
RU96115612A 1996-07-26 1996-07-26 Method for isolating zones of saturation and inflow of brine water into well RU2107158C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96115612A RU2107158C1 (en) 1996-07-26 1996-07-26 Method for isolating zones of saturation and inflow of brine water into well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96115612A RU2107158C1 (en) 1996-07-26 1996-07-26 Method for isolating zones of saturation and inflow of brine water into well

Publications (2)

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RU2107158C1 true RU2107158C1 (en) 1998-03-20
RU96115612A RU96115612A (en) 1998-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8703657B2 (en) 2005-07-13 2014-04-22 Halliburton Energy Services, Inc. Inverse emulsion polymers as lost circulation material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8703657B2 (en) 2005-07-13 2014-04-22 Halliburton Energy Services, Inc. Inverse emulsion polymers as lost circulation material

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