CN103333671B - Profile control agent for oil field and preparation method thereof - Google Patents
Profile control agent for oil field and preparation method thereof Download PDFInfo
- Publication number
- CN103333671B CN103333671B CN201310220321.8A CN201310220321A CN103333671B CN 103333671 B CN103333671 B CN 103333671B CN 201310220321 A CN201310220321 A CN 201310220321A CN 103333671 B CN103333671 B CN 103333671B
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- CN
- China
- Prior art keywords
- sewage
- hydrogen sulfide
- oil field
- amendment
- sodium dichromate
- 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.)
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- 238000002360 preparation method Methods 0.000 title 1
- 239000010865 sewage Substances 0.000 claims abstract description 40
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 30
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- -1 sulfide hydrogen Chemical class 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract description 8
- 229920000642 polymer Polymers 0.000 abstract description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 10
- 229920003023 plastic Polymers 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- IZQHEASYQQIYPP-UHFFFAOYSA-N [O].S Chemical compound [O].S IZQHEASYQQIYPP-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a profile control agent for an oil field; the sewage treatment system consists of oil field sewage containing hydrogen sulfide, polymer and sodium dichromate; the concentration of the sewage containing hydrogen sulfide in the oil field is 0.1 mg/L-20 mg/L, the addition amount of sodium dichromate is 30-50mg/L, and the addition amount of polymer is 1500 mg/L; when the oil field sewage contains hydrogen sulfide with the concentration of 20 mg/L-50 mg/L, carrying out oxygen exposure on the sewage, reducing the hydrogen sulfide content to be in the range of 0.1 mg/L-20 mg/L, and adding 30-50mg/L sodium dichromate and 1500mg/L polymer; the profile control agent solves the problem that the polymer is used as a main agent and cannot be prepared by utilizing the hydrogen sulfide-containing sewage, solves the problem that the gel cannot be formed by utilizing the hydrogen sulfide-containing sewage in the prior profile control, reduces the use concentration of sodium dichromate, and does not need reducing agent components such as thiourea.
Description
Technical field:
The present invention relates to a kind of oil field amendment and compound method thereof; Particularly use oil field sulfide hydrogen waste water amendment and compound method thereof.
Background technology:
Current oil field is that the amendment kind of host is a lot of with polymkeric substance, extensive in field use.But because current oil field is saving water resource, water injection well major part uses oil field recharged waste water, wherein contains hydrogen sulfide in part of contaminated water, and hydrogen sulfide is comparatively large on polymer viscosity impact, and cause polymer viscosity not reach requirement, amendment cannot plastic.In the prior art, meet join polymkeric substance requirement for making oilfield sewage, the general sewage that adopts stirs the vulcanisation hydrogen of sudden and violent oxygen in stirred pot, and after sewage meets requirement, just start prepared polymer, amendment property indices reaches sufficient actual requirement.
Applicant after the Searches of Patent Literature is carried out to State Intellectual Property Office of the People's Republic of China's patent documentation, with patent of invention " a kind of profile control agent of injection well " (patent publication No.: CN101362940A) and " a kind for the treatment of process of oilfield sulfur-containing sewage " (patent publication No. CN101497472A) technology as a setting.Patent of invention " a kind of profile control agent of injection well " feature is " by polyacrylamide, sodium dichromate 99 and thiocarbamide are main ingredient to this amendment, and each component polypropylenes amide concentration is 0.5%, sodium dichromate 99 0.15 ~ 0.5%, and concentration is 0.05 ~ 0.4% thiocarbamide "; " a kind for the treatment of process of oilfield sulfur-containing sewage " is characterized in that, and " when hydrogen sulfide content is less than 30mg/L, sewage is passed into open container, drum air 25 ~ 40 minutes, controls air and sewage volume ratio 2:1 ~ 8:1; When hydrogen sulfide content is more than or equal to 30mg/L, add thiosulphate, then rouse air 25 ~ 40 minutes, control air and sewage volume ratio 2:1 ~ 8:1, its principle is also utilize oxygen and hydrogen sulfide to react to generate the object that sulphur reaches sulphur removal ".Be unfavorable for field conduct.Drum air carries out except S
2-, need the equipment such as air compressor, and want control ratio.
Summary of the invention
The object of this invention is to provide a kind of oil field amendment and compound method thereof, utilize amendment and the collocation method thereof of oil field sulfide hydrogen sewage configuration, breach when utilizing sulfide hydrogen sewage to carry out amendment dosing in the past, need the problem of sewage being carried out to vulcanisation hydrogen process.
A kind of oil field of the present invention amendment, is made up of oil field sulfide hydrogen sewage, polymkeric substance, sodium dichromate 99; Oil field sulfide hydrogen concentration of wastewater is 0.1mg/L ~ 20mg/L, sodium dichromate 99 add-on is 30-50mg/L, and polymkeric substance add-on is 1500mg/L.
The collocation method of a kind of oil field of the present invention amendment;
When to contain concentration of hydrogen sulfide be 20mg/L ~ 50mg/L to oilfield sewage, carry out sudden and violent oxygen to sewage, hydrogen sulfide content is reduced within the scope of 0.1mg/L ~ 20mg/L, add the sodium dichromate 99 of 30-50mg/L, 1500mg/L polymkeric substance, amendment can plastic, and property indices meets actual needs.
When Hydrogen Sulfide in Sewage content drops to 5mg/L, add the sodium dichromate 99 of 50mg/L, amendment gelling strength is best; When hydrogen sulfide content is lower, gelling strength reduces, mainly due to hydrogen sulfide content lower time add sodium dichromate 99 to reduce chromic amount less, make polymkeric substance can not be full cross-linked, the gel of formation be more weak; When hydrogen sulfide content is higher, hydrogen sulfide produces Degradation to polymkeric substance, and after crosslinked, the intensity of amendment reduces, but amendment can plastic, has certain intensity.
When hydrogen sulfide content in water is higher than 50mg/L, the long-time sudden and violent oxygen hydrogen sulfide content of sewage warp is when more than 20mg/L, add the sodium dichromate 99 of 30-50mg/L, 1500mg/L polymkeric substance, amendment can not plastic, 1d soltion viscosity 97.3mPa.s, 2d soltion viscosity 20.8mPa.s, 10 days soltion viscosities are 5.6mPa.s.
When patent of the present invention breaches and utilizes sulfide hydrogen sewage to carry out amendment dosing in the past, need the problem of sewage being carried out to vulcanisation hydrogen process.Show through experiment and field practice, as long as sulfide hydrogen Hydrogen Sulfide in Sewage concentration is when below 20mg/L, even concentration of hydrogen sulfide is slightly higher again, the present invention is utilized to add the sodium dichromate 99 of 30-50mg/L, 1500mg/L polymkeric substance, the amendment formed can both plastic, and does not need the linking agent auxiliary agent adding other.
The effect of invention
The amendment utilizing Hydrogen Sulfide in Sewage to study of the present invention, captured and sulfide hydrogen sewage can not be utilized to be configured to the amendment problem that polymkeric substance is host, capture profile control in the past utilize sulfide hydrogen sewage to be configured can not the problem of plastic.Contrast the component of patent of invention " a kind of profile control agent of injection well ", patent of the present invention reduces the working concentration of sodium dichromate 99, does not use the reductive agent components such as thiocarbamide simultaneously.
Embodiment
Embodiment 1:
In September, 2011, Kelamayi Qi Zhongqu transfer drive well, in oilfield sulfur-containing sewage, hydrogen sulfide content is 20mg/L, and it is 0.1mg/L that sewage surveys hydrogen sulfide content after sudden and violent oxygen process, adds 30mg/L sodium dichromate 99, the polymkeric substance of 1500mg/L.Carry out sampling to joined solution to detect, 24h solution amendment soltion viscosity is amendment soltion viscosity 1839mPa.s after 197.1mPa.s, 48h, 10d amendment soltion viscosity 2701mPa.s, and amendment plastic is obvious, and stability is better.
Embodiment 2:
In October, 2011, Kelamayi Qi Zhongqu transfer drive well, oilfield sulfur-containing sewage 30mg/L, it is 0.2mg/L that sewage surveys hydrogen sulfide content after sudden and violent oxygen process, adds 40mg/L sodium dichromate 99, the polymkeric substance of 1500mg/L.Carry out sampling to joined solution to detect, 24h solution amendment soltion viscosity is amendment soltion viscosity 1839mPa.s after 197.1mPa.s, 48h, 10d amendment soltion viscosity 2701mPa.s, and amendment plastic is obvious, and stability is better.
Embodiment 3
When to contain concentration of hydrogen sulfide be 40mg/L to oilfield sewage, carry out sudden and violent oxygen to sewage, hydrogen sulfide content is reduced within the scope of 5mg/L, adds the sodium dichromate 99 of 50mg/L, 1500mg/L polymkeric substance.
Carry out sampling to joined solution to detect, 24h solution amendment soltion viscosity is amendment soltion viscosity 1839mPa.s after 197.1mPa.s, 48h, 10d amendment soltion viscosity 2701mPa.s, and amendment plastic is obvious, and stability is better.
Embodiment 4
When to contain concentration of hydrogen sulfide be 50mg/L to oilfield sewage, carry out sudden and violent oxygen to sewage, hydrogen sulfide content is reduced within the scope of 20mg/L, adds the sodium dichromate 99 of 50mg/L, 1500mg/L polymkeric substance.
Carry out sampling to joined solution to detect, 24h solution amendment soltion viscosity is amendment soltion viscosity 1839mPa.s after 197.1mPa.s, 48h, 10d amendment soltion viscosity 2701mPa.s, and amendment plastic is obvious, and stability is better.
Claims (2)
1. an oil field amendment, is characterized in that: be made up of oil field sulfide hydrogen sewage, polymkeric substance, sodium dichromate 99; Oil field sulfide hydrogen concentration of wastewater is 0.1mg/L ~ 20mg/L, sodium dichromate 99 add-on is 30mg/L, and polymkeric substance add-on is 1500mg/L.
2. the collocation method of an oil field according to claim 1 amendment, it is characterized in that: when to contain concentration of hydrogen sulfide be 20mg/L ~ 50mg/L to oilfield sewage, sudden and violent oxygen is carried out to sewage, hydrogen sulfide content is reduced within the scope of 0.1mg/L ~ 20mg/L, add the sodium dichromate 99 of 30mg/L, 1500mg/L polymkeric substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310220321.8A CN103333671B (en) | 2013-06-05 | 2013-06-05 | Profile control agent for oil field and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310220321.8A CN103333671B (en) | 2013-06-05 | 2013-06-05 | Profile control agent for oil field and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103333671A CN103333671A (en) | 2013-10-02 |
| CN103333671B true CN103333671B (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310220321.8A Active CN103333671B (en) | 2013-06-05 | 2013-06-05 | Profile control agent for oil field and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103333671B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117330457B (en) * | 2023-12-01 | 2024-02-09 | 东北石油大学三亚海洋油气研究院 | Gel measurement device and method based on hydrogen sulfide environment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746687A (en) * | 1985-05-02 | 1988-05-24 | American Cyanamid Company | High temperature profile modification agents and methods for using same |
| WO1992011440A1 (en) * | 1990-12-21 | 1992-07-09 | Union Oil Company Of California | Method for selectively reducing subterranean water permeability |
-
2013
- 2013-06-05 CN CN201310220321.8A patent/CN103333671B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746687A (en) * | 1985-05-02 | 1988-05-24 | American Cyanamid Company | High temperature profile modification agents and methods for using same |
| WO1992011440A1 (en) * | 1990-12-21 | 1992-07-09 | Union Oil Company Of California | Method for selectively reducing subterranean water permeability |
Non-Patent Citations (4)
| Title |
|---|
| 准噶尔盆地一中区克拉玛依组油藏调剖驱油配方研究;赵增义等;《科技资讯》;20080223(第06期);151-152 * |
| 用于改善聚驱效果的全过程调剖技术研究;肖磊等;《长江大学学报(自科版)理工卷》;20070615;第4卷(第02期);229-231 * |
| 硫化氢对冻胶型堵剂的影响;王业飞等;《中国石油大学学报(自然科学版)》;20081220;第32卷(第06期);104-108 * |
| 调剖用聚合物凝胶体系;汪先珍等;《国外油田工程》;20061028;第22卷(第10期);23-27 * |
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| Publication number | Publication date |
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| CN103333671A (en) | 2013-10-02 |
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