WO2013105872A1 - Способ разработки нефтяной залежи - Google Patents
Способ разработки нефтяной залежи Download PDFInfo
- Publication number
- WO2013105872A1 WO2013105872A1 PCT/RU2012/000629 RU2012000629W WO2013105872A1 WO 2013105872 A1 WO2013105872 A1 WO 2013105872A1 RU 2012000629 W RU2012000629 W RU 2012000629W WO 2013105872 A1 WO2013105872 A1 WO 2013105872A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- injection
- clay
- oil
- radius
- permeability
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- 230000035699 permeability Effects 0.000 claims abstract description 25
- 239000004927 clay Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 230000008520 organization Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000005054 agglomeration Methods 0.000 abstract 2
- 230000002776 aggregation Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000001149 thermolysis Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 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
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
Definitions
- the invention relates to the oil industry and may find application in the development of oil deposits.
- a known method of developing a highly viscous oil field including the injection of an oxidizing agent, the organization of in-situ combustion, the selection of oil and the injection of a polymer non-combustible water-soluble material (RF Patent JVb 2429346, publ. 09/20/2011 1).
- the known method is applicable only to deposits with high permeability of the reservoir.
- the disadvantage of this method is the low oil recovery deposits. This drawback is especially noticeable when developing a reservoir with a low permeability formation, the reservoir of which is close in properties to a non-reservoir.
- the proposed invention solves the problem of increasing oil recovery of an oil reservoir with a low permeability reservoir.
- the problem is solved in that in the method of developing an oil deposit, including air injection through injection wells and oil extraction through production wells, according to the invention, the clay content of the formation and sintering temperature of clays are preliminarily determined, the permeability of the formation after sintering of clays is determined, the radius of the near-wellbore zone with altered permeability is calculated where the injection pressure is equalized with reservoir pressure, heat treatment of the near-wellbore zone of the injection well is carried out by injection into air with the organization of dry combustion in the near-wellbore zone and sintering of clays until the heat-treated zone of the calculated radius is reached, the air injection is periodically stopped and a rim of water is pumped in to cool and crack the sintered clay, and then proceed to the injection of the working agent.
- Periodic water cooling contributes to the phased creation layer by layer of sintered clay stone and increase the permeability of the collector.
- Formula (1) expresses the flow of the injected agent from the well in zone / (Fig. 1), which is determined by the cylindrical region r c ⁇ r ⁇ G de g s is the radius of the well.
- Formula (2) expresses the flow in zone II (Fig. 1) -
- the processing radius depends on the amount of oxidant injected. How much the permeability has increased depends on the temperature created, respectively, both on the amount of oxidant injected and on the rate of injection of the oxygen-containing mixture.
- An oil reservoir is developed with the following characteristics: average depth - 2631 m, reservoir temperature 92 ° C, initial reservoir pressure 26.8 MPa, porosity 0.18%, permeability (core) 2.4 mD, average oil saturation 0.52, reservoir - clay cement, has a polymineral composition and is represented by kaolinite - from 31 to 49%, hydromica - from 14 to 34%, chlorite - from 23 to 35%, mixed-layer formations - from 5 to 13%, the volume of cement varies from 8 to 19%, oil viscosity 1, 77/1, 38 MPa * s, oil density in reservoir conditions: 0.818 g / cm 3, the density of the oil under surface conditions: 0.867 g / cm3, the average total thickness of the productive stratum 96.7 m, the average net pay thickness of 8.3 m, pore manifold, reservoir lithology type, oil-water contact (OWC ) not opened.
- kaolinite - from 31 to 49%
- clayey clay and sintering temperature of clays are determined.
- Clay content is from 8 to 19%, the sintering temperature of clay is 150-600 ° C.
- the radius of the near-wellbore zone with a changed permeability which depends on the propagation of the heat front, and the radius at which the injection pressure is equalized with the reservoir pressure, are calculated.
- Heat treatment of the near-well zone of the injection well is carried out by air injection with the organization of dry combustion in the near-well zone according to the following regime: for 3 months - air injection at a rate of 24,000 nm / day, after which within 2 weeks - water injection at a rate of 100 m 3 / day The cycle is repeated at least 4 times.
- the air injection rate is 24000 nm / day, and under reservoir conditions 89.5 m / day.
- the rate of water injection is 100 m 3 / day.
- Porosity - m 0.18.
- the bottom-hole zone is a cylinder, the volume of which is: m 3 .
- the radius of the near-wellbore zone with altered permeability is 26.3 m.
- the radius at which the injection pressure is equalized with reservoir pressure is obtained from the calculation of the supply circuit.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Edible Oils And Fats (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1615MUN2014 IN2014MN01615A (ru) | 2012-01-13 | 2012-08-01 | |
BR112014013824A BR112014013824A2 (pt) | 2012-01-13 | 2012-08-01 | método de desenvolvimento de depósito de óleo |
MX2014005666A MX2014005666A (es) | 2012-01-13 | 2012-08-01 | Modo de explotacion del yacimiento de petroleo. |
CU2014000041A CU20140041A7 (es) | 2012-01-13 | 2014-04-04 | Modo de explotación del yacimiento de petróleo |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2012100686 | 2012-01-13 | ||
RU2012100686/03A RU2490428C1 (ru) | 2012-01-13 | 2012-01-13 | Способ разработки нефтяной залежи |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013105872A1 true WO2013105872A1 (ru) | 2013-07-18 |
Family
ID=48781724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2012/000629 WO2013105872A1 (ru) | 2012-01-13 | 2012-08-01 | Способ разработки нефтяной залежи |
Country Status (7)
Country | Link |
---|---|
BR (1) | BR112014013824A2 (ru) |
CO (1) | CO7010801A2 (ru) |
CU (1) | CU20140041A7 (ru) |
IN (1) | IN2014MN01615A (ru) |
MX (1) | MX2014005666A (ru) |
RU (1) | RU2490428C1 (ru) |
WO (1) | WO2013105872A1 (ru) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108763639A (zh) * | 2018-04-20 | 2018-11-06 | 中国石油天然气股份有限公司 | 一种分层采油用投球丢手压力的计算方法 |
CN109372484A (zh) * | 2017-08-11 | 2019-02-22 | 中国石油化工股份有限公司 | 致密油藏co2吞吐有效作用半径的实验预测方法及系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227575A (en) * | 1978-06-30 | 1980-10-14 | Texaco Inc. | Reservoir stabilization by treating water sensitive clays |
SU1599528A1 (ru) * | 1987-07-22 | 1990-10-15 | Украинский научно-исследовательский институт природных газов | Способ креплени слабосцементированных пород путем термического воздействи |
RU2034135C1 (ru) * | 1992-03-31 | 1995-04-30 | Всероссийский нефтегазовый научно-исследовательский институт | Способ обработки призабойной зоны нефтяного пласта с глиносодержащим коллектором |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1458498A1 (ru) * | 1987-04-13 | 1989-02-15 | Московский Текстильный Институт Им.А.Н.Косыгина | Способ термического укреплени грунта |
SU1625957A1 (ru) * | 1989-03-27 | 1991-02-07 | Московский Текстильный Институт Им.А.Н.Косыгина | Способ термического укреплени грунта |
-
2012
- 2012-01-13 RU RU2012100686/03A patent/RU2490428C1/ru active
- 2012-08-01 MX MX2014005666A patent/MX2014005666A/es unknown
- 2012-08-01 WO PCT/RU2012/000629 patent/WO2013105872A1/ru active Application Filing
- 2012-08-01 IN IN1615MUN2014 patent/IN2014MN01615A/en unknown
- 2012-08-01 BR BR112014013824A patent/BR112014013824A2/pt not_active Application Discontinuation
-
2014
- 2014-04-04 CU CU2014000041A patent/CU20140041A7/es unknown
- 2014-04-24 CO CO14088043A patent/CO7010801A2/es not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227575A (en) * | 1978-06-30 | 1980-10-14 | Texaco Inc. | Reservoir stabilization by treating water sensitive clays |
SU1599528A1 (ru) * | 1987-07-22 | 1990-10-15 | Украинский научно-исследовательский институт природных газов | Способ креплени слабосцементированных пород путем термического воздействи |
RU2034135C1 (ru) * | 1992-03-31 | 1995-04-30 | Всероссийский нефтегазовый научно-исследовательский институт | Способ обработки призабойной зоны нефтяного пласта с глиносодержащим коллектором |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109372484A (zh) * | 2017-08-11 | 2019-02-22 | 中国石油化工股份有限公司 | 致密油藏co2吞吐有效作用半径的实验预测方法及系统 |
CN108763639A (zh) * | 2018-04-20 | 2018-11-06 | 中国石油天然气股份有限公司 | 一种分层采油用投球丢手压力的计算方法 |
CN108763639B (zh) * | 2018-04-20 | 2021-11-30 | 中国石油天然气股份有限公司 | 一种分层采油用投球丢手压力的计算方法 |
Also Published As
Publication number | Publication date |
---|---|
BR112014013824A2 (pt) | 2017-06-13 |
RU2490428C1 (ru) | 2013-08-20 |
MX2014005666A (es) | 2015-03-23 |
CU20140041A7 (es) | 2014-07-30 |
IN2014MN01615A (ru) | 2015-07-03 |
RU2012100686A (ru) | 2013-07-20 |
CO7010801A2 (es) | 2014-07-31 |
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