RU95107265A - Method for insulation of water inflow into well - Google Patents

Method for insulation of water inflow into well

Info

Publication number
RU95107265A
RU95107265A RU95107265/03A RU95107265A RU95107265A RU 95107265 A RU95107265 A RU 95107265A RU 95107265/03 A RU95107265/03 A RU 95107265/03A RU 95107265 A RU95107265 A RU 95107265A RU 95107265 A RU95107265 A RU 95107265A
Authority
RU
Russia
Prior art keywords
water
well
oil
insulation
viscous
Prior art date
Application number
RU95107265/03A
Other languages
Russian (ru)
Other versions
RU2088746C1 (en
Inventor
Г.А. Орлов
М.Х. Мусабиров
Р.Г. Габдуллин
Original Assignee
Татарский научно-исследовательский и проектный институт нефтяной промышленности
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 Татарский научно-исследовательский и проектный институт нефтяной промышленности filed Critical Татарский научно-исследовательский и проектный институт нефтяной промышленности
Priority to RU95107265A priority Critical patent/RU2088746C1/en
Publication of RU95107265A publication Critical patent/RU95107265A/en
Application granted granted Critical
Publication of RU2088746C1 publication Critical patent/RU2088746C1/en

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  • Colloid Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

FIELD: oil and gas production. SUBSTANCE: invention is aimed at increasing insulation of water inflow from water saturated formation isolation gaps into well with subsequently ensuring possibility of carrying out efficient selective acid treatment of oil saturated formation isolation gaps in the course of a single operation. Method including pumping in buffer agent and insulation composition into the bed is distinguished with that, as buffer agent, a viscous hydrophobizing liquid is used and, after insulation composition is pumped in, a viscous acid-resistant liquid is additionally pumped in into the bed. Such method allowed 2.4 times reduction in well watering with simultaneously increased oil recovery by 7.2 t per 1 day. EFFECT: improved water inflow insulation.

Claims (1)

Изобретение относится к нефтедобывающей промышленности, в частности к способам ограничения водопритока и изоляции пластовых вод в нефтяных скважинах. Цель изобретения - повышение эффективности изоляции притока вод из водонасыщенных интервалов в скважину с последующим проведением эффективной направленной кислотной обработки нефтенасыщенных интервалов пласта за одну. скважино-операцию. Способ включает закачку в пласт буферного агента и изолирующего состава, новым является то, что в качестве буферного агента используют вязкую гидрофобизирующую жидкость, а вслед за изолирующим составом в пласт дополнительно закачивают вязкую инертную к кислоте жидкость. Промысловые испытания способа позволили снизить обводненность скважины в 2,4 раза при увеличении дебита нефти на 7,2 т/сут.The invention relates to the oil industry, in particular to methods for limiting water inflow and isolating formation water in oil wells. The purpose of the invention is to increase the efficiency of isolation of the influx of water from water-saturated intervals into the well, followed by effective directed acid treatment of oil-saturated intervals of the formation in one. well operation. The method includes injecting a buffer agent and an insulating composition into the formation, it is new that a viscous water-repellent liquid is used as a buffering agent, and after the insulating composition an viscous acid-inert liquid is additionally pumped into the formation. Field tests of the method allowed to reduce well water cut by 2.4 times with an increase in oil production by 7.2 tons / day.
RU95107265A 1995-05-04 1995-05-04 Method for shutoff of water inflows in oil well RU2088746C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95107265A RU2088746C1 (en) 1995-05-04 1995-05-04 Method for shutoff of water inflows in oil well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95107265A RU2088746C1 (en) 1995-05-04 1995-05-04 Method for shutoff of water inflows in oil well

Publications (2)

Publication Number Publication Date
RU95107265A true RU95107265A (en) 1997-04-27
RU2088746C1 RU2088746C1 (en) 1997-08-27

Family

ID=20167471

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95107265A RU2088746C1 (en) 1995-05-04 1995-05-04 Method for shutoff of water inflows in oil well

Country Status (1)

Country Link
RU (1) RU2088746C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2533397C2 (en) * 2013-02-01 2014-11-20 Общество с ограниченной ответственностью "ЛУКОЙЛ-Западная Сибирь" (ООО "ЛУКОЙЛ-Западная Сибирь") Formation permeability control method

Also Published As

Publication number Publication date
RU2088746C1 (en) 1997-08-27

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20080505