EA202090633A1 - METHOD FOR INCREASING OIL RECOVERY OF Fractured, Porous Formations and Formations with Artificially Created Cracks AFTER HYDRAULIC Fracturing - Hydraulic Fracturing - Google Patents
METHOD FOR INCREASING OIL RECOVERY OF Fractured, Porous Formations and Formations with Artificially Created Cracks AFTER HYDRAULIC Fracturing - Hydraulic FracturingInfo
- Publication number
- EA202090633A1 EA202090633A1 EA202090633A EA202090633A EA202090633A1 EA 202090633 A1 EA202090633 A1 EA 202090633A1 EA 202090633 A EA202090633 A EA 202090633A EA 202090633 A EA202090633 A EA 202090633A EA 202090633 A1 EA202090633 A1 EA 202090633A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- hydraulic fracturing
- formations
- fractured
- oil recovery
- artificially created
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 4
- 238000005755 formation reaction Methods 0.000 title abstract 4
- 238000011084 recovery Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- 239000004971 Cross linker Substances 0.000 abstract 2
- 239000006004 Quartz sand Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 229910000278 bentonite Inorganic materials 0.000 abstract 2
- 239000000440 bentonite Substances 0.000 abstract 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 239000011651 chromium Substances 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 229920002401 polyacrylamide Polymers 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Изобретение относится к нефтяной промышленности и может быть использовано при разработке заводнением трещиноватых и пористых пластов с искусственно созданными трещинами после гидравлического разрыва пласта - ГРП. Технический результат - повышение нефтеотдачи. В способе повышения нефтеотдачи трещиноватых и пористых пластов с искусственно созданными трещинами после гидравлического разрыва пласта - ГРП, включающий закачку водного раствора полиакриламида со сшивателем - соединением хрома, бентонитового глинопорошка и кварцевого песка, отличающийся тем, что осуществляют закачку водного раствора, в котором суспендировано 0,1-15 мас.% смеси из бентонитового глинопорошка, модифицированного с кварцевым песком, их соотношением от 20:1 до 1:4, и содержащего 0,01-0,60 мас.% частично гидролизованного полиакриламида и 0,1-0,6 мас.% сшивателя - хромсодержащего соединения.The invention relates to the oil industry and can be used in the development of waterflooding of fractured and porous formations with artificially created cracks after hydraulic fracturing - hydraulic fracturing. The technical result is increased oil recovery. In the method of increasing oil recovery of fractured and porous formations with artificially created cracks after hydraulic fracturing - hydraulic fracturing, including the injection of an aqueous solution of polyacrylamide with a crosslinker - a compound of chromium, bentonite clay powder and quartz sand, characterized in that the injection of an aqueous solution in which 0 is suspended 1-15 wt.% Of a mixture of bentonite clay powder modified with quartz sand, their ratio from 20: 1 to 1: 4, and containing 0.01-0.60 wt.% Partially hydrolyzed polyacrylamide and 0.1-0.6 wt.% of a crosslinker - a chromium-containing compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA202090633A EA202090633A1 (en) | 2020-03-27 | 2020-03-27 | METHOD FOR INCREASING OIL RECOVERY OF Fractured, Porous Formations and Formations with Artificially Created Cracks AFTER HYDRAULIC Fracturing - Hydraulic Fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA202090633A EA202090633A1 (en) | 2020-03-27 | 2020-03-27 | METHOD FOR INCREASING OIL RECOVERY OF Fractured, Porous Formations and Formations with Artificially Created Cracks AFTER HYDRAULIC Fracturing - Hydraulic Fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EA202090633A1 true EA202090633A1 (en) | 2021-09-30 |
Family
ID=77912671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA202090633A EA202090633A1 (en) | 2020-03-27 | 2020-03-27 | METHOD FOR INCREASING OIL RECOVERY OF Fractured, Porous Formations and Formations with Artificially Created Cracks AFTER HYDRAULIC Fracturing - Hydraulic Fracturing |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA202090633A1 (en) |
-
2020
- 2020-03-27 EA EA202090633A patent/EA202090633A1/en unknown
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