RU2007113251A - METHOD FOR DEVELOPING DEPOSITS OF HIGH-VISCOUS OILS (OPTIONS) - Google Patents
METHOD FOR DEVELOPING DEPOSITS OF HIGH-VISCOUS OILS (OPTIONS) Download PDFInfo
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- RU2007113251A RU2007113251A RU2007113251/03A RU2007113251A RU2007113251A RU 2007113251 A RU2007113251 A RU 2007113251A RU 2007113251/03 A RU2007113251/03 A RU 2007113251/03A RU 2007113251 A RU2007113251 A RU 2007113251A RU 2007113251 A RU2007113251 A RU 2007113251A
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Abstract
1. Способ разработки залежей высоковязких нефтей путем паротеплового воздействия, включающий закачку раствора реагента, под действием температуры разлагающегося с выделением углекислого газа, и пара, отличающийся тем, что в нагнетательную скважину закачивают чередующиеся оторочки раствора на основе карбамида и пара, при этом после окончания закачки всего объема раствора в паронагнетательную скважину закачивают воду в объеме, превышающем на 2 мобъем НКТ, затем закачивают пар, добычу продукции осуществляют через добывающие скважины.2. Способ по п.1, отличающийся тем, что закачку раствора на основе карбамида производят не менее чем двумя оторочками.3. Способ по п.1, отличающийся тем, что раствор на основе карбамида дополнительно содержит аммиачную селитру, аммоний роданистый и, по крайней мере, один компонент из группы: комплексный ПАВ Нефтенол ВВД или смесь неионогенного ПАВ (АФ9-12 или NP-40, или NP-50) и анионактивного (алкансульфонат, например волгонат или алкиларилсульфонат, например сульфонол, или NPS-6) при следующих соотношениях, мас.%:или4. Способ разработки залежей высоковязких нефтей путем паротеплового воздействия, включающий закачку раствора реагента, под действием температуры разлагающегося с выделением углекислого газа, и пара, отличающийся тем, что в пласт через добывающую скважину закачивают чередующиеся оторочки раствора на основе карбамида и пара, после окончания закачки последней оторочки пара в скважину закачивают оторочку нефти, выдерживают скважину для пропитки, затем пускают в эксплуатацию.5. Способ по п.4, отличающийся тем, что закачку раствора на основе карбамида производят не менее чем двумя о1. A method of developing deposits of high-viscosity oils by heat and steam, including the injection of a reagent solution, decomposed under the influence of temperature, decomposing with the release of carbon dioxide, and steam, characterized in that alternating rims of the urea-based solution and steam are pumped into the injection well, after the injection is completed of the total volume of the solution, water is pumped into the steam injection well in a volume exceeding 2 tubing volumes, then steam is pumped, production is carried out through production wells. 2. The method according to claim 1, characterized in that the urea-based solution is injected with at least two rims. The method according to claim 1, characterized in that the urea-based solution further comprises ammonium nitrate, thiocyanate ammonium and at least one component from the group: complex surfactant Neftenol VVD or a mixture of nonionic surfactant (AF9-12 or NP-40, or NP-50) and anionic (alkanesulfonate, for example volgonate or alkylaryl sulfonate, for example sulfonol, or NPS-6) in the following proportions, wt.%: Or 4. A method for developing deposits of high-viscosity oils by heat and steam, including injecting a reagent solution under the influence of temperature decomposing with the release of carbon dioxide, and steam, characterized in that alternating ores of the urea-based solution are injected into the formation through the production well after the last rim is injected steam rim of the oil is pumped into the well, the well is kept for impregnation, then put into operation. 5. The method according to claim 4, characterized in that the urea-based solution is injected with at least two o
Claims (6)
Priority Applications (1)
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RU2007113251/03A RU2361074C2 (en) | 2007-04-09 | 2007-04-09 | Procedure for development of deposits of high viscous oil (versions) |
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RU2007113251/03A RU2361074C2 (en) | 2007-04-09 | 2007-04-09 | Procedure for development of deposits of high viscous oil (versions) |
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RU2007113251A true RU2007113251A (en) | 2008-10-27 |
RU2361074C2 RU2361074C2 (en) | 2009-07-10 |
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RU2007113251/03A RU2361074C2 (en) | 2007-04-09 | 2007-04-09 | Procedure for development of deposits of high viscous oil (versions) |
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Cited By (1)
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EP2537910A1 (en) | 2011-06-22 | 2012-12-26 | Wintershall Holding GmbH | Method for procuring viscous crude oil from an underground storage facility |
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RU2733350C1 (en) * | 2019-07-25 | 2020-10-01 | Федеральное государственное бюджетное учреждение науки Институт химии нефти Сибирского отделения Российской академии наук (ИХН СО РАН) | Composition for increasing oil recovery of formations |
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- 2007-04-09 RU RU2007113251/03A patent/RU2361074C2/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2537910A1 (en) | 2011-06-22 | 2012-12-26 | Wintershall Holding GmbH | Method for procuring viscous crude oil from an underground storage facility |
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RU2361074C2 (en) | 2009-07-10 |
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