CN104974731A - Foam flooding for increasing recovery ratio of crude oil - Google Patents
Foam flooding for increasing recovery ratio of crude oil Download PDFInfo
- Publication number
- CN104974731A CN104974731A CN201510334671.6A CN201510334671A CN104974731A CN 104974731 A CN104974731 A CN 104974731A CN 201510334671 A CN201510334671 A CN 201510334671A CN 104974731 A CN104974731 A CN 104974731A
- Authority
- CN
- China
- Prior art keywords
- foam flooding
- oil
- recovery ratio
- crude oil
- flooding
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—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 surfactants
-
- 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
- C09K8/592—Compositions used in combination with generated heat, e.g. by steam injection
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- 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
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
Abstract
The invention discloses foam flooding for increasing the recovery ratio of crude oil. The foam flooding consists of the following components in percentage: 0.3-0.6% of alkane sulfonate, 0.3-0.4% of a foaming agent, 2.3-2.8% of sodium carbonate, and the balance of the mixed gas of steam and carbon dioxide. According to the foam flooding disclosed by the invention, the components are optimized, so that the oil displacing effect of the foam flooding is improved.
Description
Technical field
The invention belongs to field of petroleum exploitation, particularly, relate to a kind of foam flooding improving oil recovery factor.
Background technology
Oil, as important Mineral resources, is of great rarity.In oil production process, usually dividing three phases for improving the recovery ratio of oil: primary oil recovery, relying on that the natural energy on stratum is fuel-displaced, recovery ratio is below 30%; Secondary oil recovery, adopt water filling, air insufflation techiques fuel-displaced with supplementary oil reservoir energy, recovery ratio can be increased to 40-50%; Tertiary oil recovery, utilize the strengthening mining such as physical chemistry and biology remaining reserves, recovery ratio can be increased to about 80-85%.And utilize the foaminess of tensio-active agent to be made into method that oil-displacing agent carries out recovering the oil is called foam flooding when tertiary oil recovery, the oil displacement efficiency of the foam flooding of different ingredients is different, and thus, the recovery ratio of foam flooding to crude oil of research optimum formula has material impact.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of foam flooding that effectively can improve oil recovery factor.
The present invention's adopted technical scheme that solves the problem is:
Improve the foam flooding of oil recovery factor, be made up of the component of following content:
Alkylsulfonate: 0.3-0.6%;
Foaming agent: 0.3-0.4%;
Sodium carbonate: 2.3-2.8%;
Surplus is the gas mixture of water vapour and carbonic acid gas.
To sum up, the invention has the beneficial effects as follows: foam flooding of the present invention, by being optimized component, improves the oil displacement efficiency of foam flooding.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
Improve the foam flooding of oil recovery factor, be made up of the component of following content:
Alkylsulfonate: 0.3%;
Foaming agent: 0.3%;
Sodium carbonate: 2.3%;
Surplus is the gas mixture of water vapour and carbonic acid gas.
Embodiment 2
Improve the foam flooding of oil recovery factor, be made up of the component of following content:
Alkylsulfonate: 0.6%;
Foaming agent: 0.4%;
Sodium carbonate: 2.8%;
Surplus is the gas mixture of water vapour and carbonic acid gas.
Embodiment 3
Improve the foam flooding of oil recovery factor, be made up of the component of following content:
Alkylsulfonate: 0.5%;
Foaming agent: 0.35%;
Sodium carbonate: 2.5%;
Surplus is the gas mixture of water vapour and carbonic acid gas.
Foam flooding of the present invention, by being optimized component, improves the oil displacement efficiency of foam flooding.
As mentioned above, the present invention can be realized preferably.
The above; it is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention; according to technical spirit of the present invention; within the spirit and principles in the present invention; the any simple amendment that above embodiment is done, equivalently replace and improve, within the protection domain all still belonging to technical solution of the present invention.
Claims (2)
1. improve the foam flooding of oil recovery factor, it is characterized in that, be made up of the component of following content:
Alkylsulfonate: 0.3-0.6%;
Foaming agent: 0.3-0.4%;
Sodium carbonate: 2.3-2.8%;
Surplus is the gas mixture of water vapour and carbonic acid gas.
2. the foam flooding of raising oil recovery factor according to claim 1, is characterized in that, described alkylsulfonate is 0.5%; Described foaming agent is 0.35%; Described sodium carbonate is 2.5%; Surplus is the gas mixture of water vapour and carbonic acid gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334671.6A CN104974731A (en) | 2015-06-17 | 2015-06-17 | Foam flooding for increasing recovery ratio of crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334671.6A CN104974731A (en) | 2015-06-17 | 2015-06-17 | Foam flooding for increasing recovery ratio of crude oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104974731A true CN104974731A (en) | 2015-10-14 |
Family
ID=54271707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510334671.6A Pending CN104974731A (en) | 2015-06-17 | 2015-06-17 | Foam flooding for increasing recovery ratio of crude oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104974731A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572294A (en) * | 1983-06-24 | 1986-02-25 | Chevron Research Company | Non-condensible gas injection including alpha-olefin sulfonate surfactant additives |
| US4609044A (en) * | 1985-05-20 | 1986-09-02 | Shell Oil Company | Alkali-enhanced steam foam oil recovery process |
| CN102086389A (en) * | 2010-12-31 | 2011-06-08 | 上海大学 | Temperature-resistant salt-resistant composite foam oil displacement agent for tertiary oil recovery and preparation method thereof |
| CN103031120A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Foaming agent composition containing alkylphenol ethoxylate benzene sulfonate and application |
-
2015
- 2015-06-17 CN CN201510334671.6A patent/CN104974731A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572294A (en) * | 1983-06-24 | 1986-02-25 | Chevron Research Company | Non-condensible gas injection including alpha-olefin sulfonate surfactant additives |
| US4609044A (en) * | 1985-05-20 | 1986-09-02 | Shell Oil Company | Alkali-enhanced steam foam oil recovery process |
| CN102086389A (en) * | 2010-12-31 | 2011-06-08 | 上海大学 | Temperature-resistant salt-resistant composite foam oil displacement agent for tertiary oil recovery and preparation method thereof |
| CN103031120A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Foaming agent composition containing alkylphenol ethoxylate benzene sulfonate and application |
Non-Patent Citations (2)
| Title |
|---|
| 刘程等: "《表面活性剂应用手册第三版》", 30 September 2004, 化学工业出版社 * |
| 玉门石油管理局采油科学研究所: "《油田开采研究》", 31 March 1975 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |