RU94008415A - METHOD FOR TREATING THE HALT-BELTED ZONE OF THE SUPPLEMENTARY WELL OF A TERRIGENT STRAY - Google Patents

METHOD FOR TREATING THE HALT-BELTED ZONE OF THE SUPPLEMENTARY WELL OF A TERRIGENT STRAY

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Publication number
RU94008415A
RU94008415A RU94008415/03A RU94008415A RU94008415A RU 94008415 A RU94008415 A RU 94008415A RU 94008415/03 A RU94008415/03 A RU 94008415/03A RU 94008415 A RU94008415 A RU 94008415A RU 94008415 A RU94008415 A RU 94008415A
Authority
RU
Russia
Prior art keywords
injection
low
acid
terrigent
halt
Prior art date
Application number
RU94008415/03A
Other languages
Russian (ru)
Other versions
RU2096604C1 (en
Inventor
А.В. Овсюков
С.А. Блинов
В.А. Левкин
С.С. Бадретдинов
Т.Н. Максимова
В.А. Илюков
М.М. Камалов
Ю.П. Филлипов
Original Assignee
Научно-исследовательский институт "Нефтеотдача"
Filing date
Publication date
Application filed by Научно-исследовательский институт "Нефтеотдача" filed Critical Научно-исследовательский институт "Нефтеотдача"
Priority to RU94008415A priority Critical patent/RU2096604C1/en
Priority claimed from RU94008415A external-priority patent/RU2096604C1/en
Publication of RU94008415A publication Critical patent/RU94008415A/en
Application granted granted Critical
Publication of RU2096604C1 publication Critical patent/RU2096604C1/en

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Claims (1)

Изобретение относится к технологии добычи нефти, в частности к способам увеличения приемистости нагнетательных скважин терригенного пласта закачкой растворителя и кислоты. Цель - повышение эффективности способа за счет модификации поверхности скелета породы и снижения вторичной углеводородонасыщенности призабойной зоны закачкой смеси растворов кислот. Эффективность способа достигается тем, что в качестве модификатора поверхности используются жидкие отходы углеводородов производства изопрена методом двустадийного дегидрирования, содержащие пиперилен - 20-23%, толуол - 63-70%, абсорбент А-2 - 17-5%, а в качестве смеси используется 13%-ный раствор соляной и 10%-ный раствор кремнефтористоводородной кислот, взятых в соотношении 1:1. Жидкие отходы углеводородов стабильны, малотоксичны, легкотранспортируемы, малокоррозионноактивны, обладают высокой степенью взаимодействия с поверхностью скелета, имеют низкую цену. Способ не требует специальных технологических приемов, оборудования, больших материальных и экономических затрат, позволяет увеличить приемистость нагнетательных скважин в 7-10 раз при сохранении этого показателя в течение длительного времени.The invention relates to the technology of oil production, in particular to methods for increasing the injectivity of injection wells of a terrigenous reservoir by injection of solvent and acid. The goal is to increase the efficiency of the method by modifying the surface of the skeleton of the rock and reducing the secondary hydrocarbon saturation of the bottomhole zone by pumping a mixture of acid solutions. The efficiency of the method is achieved by using liquid wastes from the production of isoprene produced by the two-stage dehydrogenation method, containing piperylene - 20-23%, toluene - 63-70%, absorbent A-2 - 17-5%, and 13% solution of hydrochloric and 10% solution of fluorosilicic acid, taken in a 1: 1 ratio. Liquid hydrocarbon wastes are stable, low-toxic, easily transportable, low-corrosive, have a high degree of interaction with the surface of the skeleton, have a low price. The method does not require special technological methods, equipment, large material and economic costs, allows to increase the injection capacity of injection wells by 7-10 times while maintaining this indicator for a long time.
RU94008415A 1994-03-10 1994-03-10 Method for treatment of bottom-hole zone of bed RU2096604C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94008415A RU2096604C1 (en) 1994-03-10 1994-03-10 Method for treatment of bottom-hole zone of bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94008415A RU2096604C1 (en) 1994-03-10 1994-03-10 Method for treatment of bottom-hole zone of bed

Publications (2)

Publication Number Publication Date
RU94008415A true RU94008415A (en) 1996-02-10
RU2096604C1 RU2096604C1 (en) 1997-11-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94008415A RU2096604C1 (en) 1994-03-10 1994-03-10 Method for treatment of bottom-hole zone of bed

Country Status (1)

Country Link
RU (1) RU2096604C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2446276C1 (en) * 2010-12-17 2012-03-27 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Development method of deposit with forced product withdrawal, and device for its implementation
RU2447269C1 (en) * 2010-12-17 2012-04-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Method to develop deposit with forced product offtake and device for its realisation

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