CN104963666A - Oil extraction method for improving crude oil recovery efficiency - Google Patents
Oil extraction method for improving crude oil recovery efficiency Download PDFInfo
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- CN104963666A CN104963666A CN201510334101.7A CN201510334101A CN104963666A CN 104963666 A CN104963666 A CN 104963666A CN 201510334101 A CN201510334101 A CN 201510334101A CN 104963666 A CN104963666 A CN 104963666A
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- oil
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- extraction method
- oil recovery
- recovery efficiency
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Abstract
The invention discloses an oil extraction method for improving the crude oil recovery efficiency. The oil extraction method includes the following steps: 10-100 ppm of component A, 1-80 ppm of component B and 5-50 ppm of component C are injected into an oil bearing stratum, wherein the component A is amino trimethylene phosphonic acid and/or ethylenediaminetetramethylene alendronate sodium, the component B is composed of triethylamine and triethanolamine with the mass ratio being 2:3, and the component C is polyepoxysuccinic acid. By means of the oil extraction method, the problem that the oil extraction effect is poor due to the fact that the oil stratum is blocked is solved, and the crude oil recovery efficiency is improved.
Description
Technical field
The invention belongs to field of petroleum exploitation, particularly, relate to a kind of oil-extraction method improving oil recovery factor.
Background technology
Oil, as important mineral resources, is of great rarity.In oil exploitation 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 enhanced recovery such as physical chemistry and biology remaining reserves, recovery ratio can be increased to about 80-85%.And along with the reasons such as the blocking of oil reservoir cause the oil recovery factor of secondary oil recovery low in secondary oil recovery process.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly can effectively solves the oil-extraction method causing oil recovery factor low due to oil layer blocking.
The present invention's adopted technical scheme that solves the problem is:
Improve the oil-extraction method of oil recovery factor, comprise the steps:
The component C of the component A of 10-100ppm, the B component of 1-80ppm and 5-50ppm is injected in oil bearing bed;
Wherein, described component A is ATMP and/or ethylene diamine tetra methylene phosphonic acid sodium;
Triethylamine and the triethanolamine of described B component to be mass ratio be 2:3;
Described component C is poly-epoxy succinic acid.
To sum up, the invention has the beneficial effects as follows: oil-extraction method of the present invention effectively can solve the problem of the oil recovery weak effect caused due to oil layer blocking, improve oil recovery factor.
Detailed description of the invention
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 oil-extraction method of oil recovery factor, comprise the steps: the triethylamine of the ethylene diamine tetra methylene phosphonic acid sodium of the ATMP of 50ppm, 50ppm, 32ppm, the triethanolamine of 48ppm, the poly-epoxy succinic acid of 50ppm to be injected in oil bearing bed.
To sum up, oil-extraction method of the present invention effectively can solve the problem of the oil recovery weak effect caused due to oil layer blocking, improves oil recovery factor.
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 (1)
1. improve the oil-extraction method of oil recovery factor, it is characterized in that, comprise the steps:
The component C of the component A of 10-100ppm, the B component of 1-80ppm and 5-50ppm is injected in oil bearing bed;
Wherein, described component A is ATMP and/or ethylene diamine tetra methylene phosphonic acid sodium;
Triethylamine and the triethanolamine of described B component to be mass ratio be 2:3;
Described component C is poly-epoxy succinic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334101.7A CN104963666A (en) | 2015-06-17 | 2015-06-17 | Oil extraction method for improving crude oil recovery efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334101.7A CN104963666A (en) | 2015-06-17 | 2015-06-17 | Oil extraction method for improving crude oil recovery efficiency |
Publications (1)
| Publication Number | Publication Date |
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| CN104963666A true CN104963666A (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510334101.7A Pending CN104963666A (en) | 2015-06-17 | 2015-06-17 | Oil extraction method for improving crude oil recovery efficiency |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887011A1 (en) * | 2006-08-09 | 2008-02-13 | Thermphos Trading GmbH | Alpha amino acid phosphonic acid compounds, method of preparation and use thereof |
| US20110130312A1 (en) * | 2008-07-01 | 2011-06-02 | Dequest Ag | Method of secondary oil recovery |
| CN103819011A (en) * | 2014-03-21 | 2014-05-28 | 山东省泰和水处理有限公司 | Corrosion and scale inhibitor for oil and gas fields and petrochemical industry |
| CN103910438A (en) * | 2014-04-22 | 2014-07-09 | 西安中瑞石油化工科技有限公司 | Antiscale corrosion inhibitor for oilfield produced water and piped crude oil |
| CN103937476A (en) * | 2014-03-20 | 2014-07-23 | 西安石油大学 | Corrosion and scale inhibitor used for mixed scaling and corrosion control of multilayer output liquids |
| CN104194759A (en) * | 2014-09-23 | 2014-12-10 | 甘肃黑马石化工程有限公司 | Neutral blockage removing agent composition used for oil recovery formation in oilfield and preparation method thereof |
-
2015
- 2015-06-17 CN CN201510334101.7A patent/CN104963666A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887011A1 (en) * | 2006-08-09 | 2008-02-13 | Thermphos Trading GmbH | Alpha amino acid phosphonic acid compounds, method of preparation and use thereof |
| US20110130312A1 (en) * | 2008-07-01 | 2011-06-02 | Dequest Ag | Method of secondary oil recovery |
| CN103937476A (en) * | 2014-03-20 | 2014-07-23 | 西安石油大学 | Corrosion and scale inhibitor used for mixed scaling and corrosion control of multilayer output liquids |
| CN103819011A (en) * | 2014-03-21 | 2014-05-28 | 山东省泰和水处理有限公司 | Corrosion and scale inhibitor for oil and gas fields and petrochemical industry |
| CN103910438A (en) * | 2014-04-22 | 2014-07-09 | 西安中瑞石油化工科技有限公司 | Antiscale corrosion inhibitor for oilfield produced water and piped crude oil |
| CN104194759A (en) * | 2014-09-23 | 2014-12-10 | 甘肃黑马石化工程有限公司 | Neutral blockage removing agent composition used for oil recovery formation in oilfield and preparation method thereof |
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Legal Events
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| 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: 20151007 |
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| RJ01 | Rejection of invention patent application after publication |