RU97112235A - METHOD FOR INCREASING OIL RECOVERY - Google Patents

METHOD FOR INCREASING OIL RECOVERY

Info

Publication number
RU97112235A
RU97112235A RU97112235/03A RU97112235A RU97112235A RU 97112235 A RU97112235 A RU 97112235A RU 97112235/03 A RU97112235/03 A RU 97112235/03A RU 97112235 A RU97112235 A RU 97112235A RU 97112235 A RU97112235 A RU 97112235A
Authority
RU
Russia
Prior art keywords
salt
calcium chloride
polybasic acid
oil recovery
emulsion
Prior art date
Application number
RU97112235/03A
Other languages
Russian (ru)
Other versions
RU2125650C1 (en
Inventor
В.В. Мазаев
С.В. Гусев
Я.Г. Коваль
Original Assignee
В.В. Мазаев
С.В. Гусев
Я.Г. Коваль
Filing date
Publication date
Application filed by В.В. Мазаев, С.В. Гусев, Я.Г. Коваль filed Critical В.В. Мазаев
Priority to RU97112235A priority Critical patent/RU2125650C1/en
Priority claimed from RU97112235A external-priority patent/RU2125650C1/en
Application granted granted Critical
Publication of RU2125650C1 publication Critical patent/RU2125650C1/en
Publication of RU97112235A publication Critical patent/RU97112235A/en

Links

Claims (3)

1. Способ увеличения нефтеотдачи пластов, включающий закачку в пласт водных растворов неионогенного поверхностно-активного вещества, хлорида кальция и соли многоосновной кислоты, образующей с хлоридом кальция нерастворимый осадок, отличающийся тем, что водные растворы неионогенного поверхностно-активного вещества и соли многоосновной кислоты закачиваются в виде эмульсии, содержащей нефтепродукт в количестве 5-50% от общей массы эмульсии, при этом эмульсию и водный раствор хлорида кальция закачивают раздельно.1. A method of increasing oil recovery, including the injection into the formation of aqueous solutions of a nonionic surfactant, calcium chloride and a salt of a polybasic acid, forming an insoluble precipitate with calcium chloride, characterized in that the aqueous solutions of a nonionic surfactant and a salt of a polybasic acid are pumped into in the form of an emulsion containing oil in an amount of 5-50% of the total weight of the emulsion, while the emulsion and the aqueous solution of calcium chloride are pumped separately. 2. Способ по п.1, отличающийся тем, что в качестве водного раствора соли многоосновной кислоты используют 0,1-15% раствор преимущественно силиката натрия, сульфата натрия или карбоната натрия. 2. The method according to claim 1, characterized in that a 0.1-15% solution of predominantly sodium silicate, sodium sulfate or sodium carbonate is used as an aqueous solution of a salt of a polybasic acid. 3. Способ по п. 1, отличающийся тем, что в качестве нефтепродукта используют преимущественно нефть, нефрас или бензин. 3. The method according to p. 1, characterized in that the oil product used is mainly oil, nefras or gasoline.
RU97112235A 1997-07-16 1997-07-16 Method for increasing oil output of bed RU2125650C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97112235A RU2125650C1 (en) 1997-07-16 1997-07-16 Method for increasing oil output of bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97112235A RU2125650C1 (en) 1997-07-16 1997-07-16 Method for increasing oil output of bed

Publications (2)

Publication Number Publication Date
RU2125650C1 RU2125650C1 (en) 1999-01-27
RU97112235A true RU97112235A (en) 1999-06-20

Family

ID=20195387

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97112235A RU2125650C1 (en) 1997-07-16 1997-07-16 Method for increasing oil output of bed

Country Status (1)

Country Link
RU (1) RU2125650C1 (en)

Similar Documents

Publication Publication Date Title
RU95120899A (en) METHOD FOR OBTAINING STABLE BIMODAL EMULSIONS
KR927003778A (en) Hard Surface Cleaning Composition
EP0130678A3 (en) Highly alkaline liquid warewashing emulsion stabilized by clay thickener
KR850006135A (en) Ophthalmic solution
SE8802635D0 (en) SALT PRODUCT
GB2256136B (en) Process for preparation of an oil in water emulsion of a drug
GR3004119T3 (en)
RU97112235A (en) METHOD FOR INCREASING OIL RECOVERY
CA2113597A1 (en) Stable Emulsion of Viscous Crude Hydrocarbon in Aqueous Buffer Solution and Method for Forming and Transporting Same
RU97107316A (en) METHOD OF INSULATION OF FLOW WATER FLOW
RU96112729A (en) METHOD FOR OIL DEPOSIT DEVELOPMENT
RU97107315A (en) METHOD OF INSULATION OF FLOW WATER FLOW
JP2001107078A5 (en)
RU96122390A (en) METHOD OF INSULATION OF FLOW WATER FLOW
RU96124611A (en) METHOD FOR OIL DEPOSIT DEVELOPMENT
RU95114109A (en) METHOD FOR PROTECTING WATER-WATERING SYSTEMS FROM CORROSION, SALINATION AND BIOFULMS
RU97107267A (en) METHOD FOR DEVELOPING A WATER OIL DEPOSIT HETEROGENEOUS BY GEOLOGICAL CONSTRUCTION
RU2000123568A (en) METHOD FOR ISOLATING WATERFILLED PLOT SITES
RU96116308A (en) METHOD FOR DEVELOPING OIL DEPOSIT
RU97109097A (en) METHOD FOR RESTRICTING WATER INTAKE TO A WELL
RU93026827A (en) METHOD FOR PREVENTING SALT IN OIL FIELD EQUIPMENT
RU96102889A (en) METHOD FOR REGENERATING TRIBUTYL PHOSPHATE
RU96112806A (en) METHOD FOR DEVELOPING HETEROGENEOUS OIL LAYERS
SU935602A1 (en) Method for waterproofing formation in well
RU2068440C1 (en) Method of preparing salt component to produce liquid for neutralizing boreholes