WO1998038409A3 - Mixture to increase oil layer recovery - Google Patents

Mixture to increase oil layer recovery Download PDF

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Publication number
WO1998038409A3
WO1998038409A3 PCT/RU1998/000051 RU9800051W WO9838409A3 WO 1998038409 A3 WO1998038409 A3 WO 1998038409A3 RU 9800051 W RU9800051 W RU 9800051W WO 9838409 A3 WO9838409 A3 WO 9838409A3
Authority
WO
WIPO (PCT)
Prior art keywords
mixture
esters
low critical
cellulose
thiocarbamide
Prior art date
Application number
PCT/RU1998/000051
Other languages
French (fr)
Russian (ru)
Other versions
WO1998038409A2 (en
WO1998038409A9 (en
Inventor
Ljubov Konstantinovna Altunina
Vladimir Alexandrov Kouvshinov
Ljubov Anatolievna Stasieva
Vyacheslav Vladimirovic Gousev
Ravil Fatykhovich Gaisin
Original Assignee
Inst Khim Nefti Sib Otdel Rosi
Ljubov Konstantinovna Altunina
Vladimir Alexandrov Kouvshinov
Ljubov Anatolievna Stasieva
Vyacheslav Vladimirovic Gousev
Ravil Fatykhovich Gaisin
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 Inst Khim Nefti Sib Otdel Rosi, Ljubov Konstantinovna Altunina, Vladimir Alexandrov Kouvshinov, Ljubov Anatolievna Stasieva, Vyacheslav Vladimirovic Gousev, Ravil Fatykhovich Gaisin filed Critical Inst Khim Nefti Sib Otdel Rosi
Publication of WO1998038409A2 publication Critical patent/WO1998038409A2/en
Publication of WO1998038409A3 publication Critical patent/WO1998038409A3/en
Publication of WO1998038409A9 publication Critical patent/WO1998038409A9/en

Links

Classifications

    • 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
    • C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof

Abstract

The invention is intended for use in the petroleum industry as a gelatinous agent during refining of the oil fields by means of flooding. The proposed mixture provides for increased recovery of the oil layers for a wide range of layer temperatures including the highest, by redistributing the filtration flows and increasing the conformance of the flooded layer. The basic components of the mixture are cellulose and water esters, whereby the cellulose esters are esters with a low critical dissolution point, used in addition to carbamide or thiocarbamide, or ammonium thiocyanate, or a mixture of these elements according to the following proportions (in molecular weight): ester with a low critical solution point (.25 to 2.0); carbamide (2.0 to 20.0); thiocarbamide (.5 to 2.0); ammonium thiocyanate (.5 to 2.0); and water (the remainder). It is preferable to use methylcellulose or methyloxypropylcellulose as the cellulose esters with a low critical solution point.
PCT/RU1998/000051 1997-02-26 1998-02-24 Mixture to increase oil layer recovery WO1998038409A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU97102864/03A RU2131971C1 (en) 1997-02-26 1997-02-26 Composition for increase of oil recovery from formation
RU97102864 1997-02-26

Publications (3)

Publication Number Publication Date
WO1998038409A2 WO1998038409A2 (en) 1998-09-03
WO1998038409A3 true WO1998038409A3 (en) 1999-01-14
WO1998038409A9 WO1998038409A9 (en) 1999-02-18

Family

ID=20190199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1998/000051 WO1998038409A2 (en) 1997-02-26 1998-02-24 Mixture to increase oil layer recovery

Country Status (3)

Country Link
CN (1) CN1088141C (en)
RU (1) RU2131971C1 (en)
WO (1) WO1998038409A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101805598B (en) * 2010-04-14 2012-10-03 天津科技大学 Multifunctional regulating, plugging and driving reagent for oil-gas field
EA027425B1 (en) * 2014-12-19 2017-07-31 Республиканское Унитарное Предприятие "Производственное Объединение "Белоруснефть" Oil field development method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028344A (en) * 1989-02-16 1991-07-02 Mobil Oil Corporation Stabilizing agent for profile control gels and polymeric gels of improved stability
SU1422975A1 (en) * 1986-07-14 1991-09-07 Институт химии нефти СО АН СССР Composition for enhancing oil yield of formations
RU2011807C1 (en) * 1990-04-21 1994-04-30 Сонич Владимир Павлович Method for petroleum deposit working
EP0619340A2 (en) * 1993-04-08 1994-10-12 Aqualon Company Thermally stable thiosulfate hydroxyethylcellulose suspension
RU2057914C1 (en) * 1993-04-27 1996-04-10 Научно-исследовательский институт по нефтепромысловой химии Oil extraction method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1422975A1 (en) * 1986-07-14 1991-09-07 Институт химии нефти СО АН СССР Composition for enhancing oil yield of formations
US5028344A (en) * 1989-02-16 1991-07-02 Mobil Oil Corporation Stabilizing agent for profile control gels and polymeric gels of improved stability
RU2011807C1 (en) * 1990-04-21 1994-04-30 Сонич Владимир Павлович Method for petroleum deposit working
EP0619340A2 (en) * 1993-04-08 1994-10-12 Aqualon Company Thermally stable thiosulfate hydroxyethylcellulose suspension
RU2057914C1 (en) * 1993-04-27 1996-04-10 Научно-исследовательский институт по нефтепромысловой химии Oil extraction method

Also Published As

Publication number Publication date
WO1998038409A2 (en) 1998-09-03
CN1257565A (en) 2000-06-21
RU2131971C1 (en) 1999-06-20
CN1088141C (en) 2002-07-24

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