CN1345907A - Water plugging agent for petroleum well - Google Patents
Water plugging agent for petroleum well Download PDFInfo
- Publication number
- CN1345907A CN1345907A CN 01103916 CN01103916A CN1345907A CN 1345907 A CN1345907 A CN 1345907A CN 01103916 CN01103916 CN 01103916 CN 01103916 A CN01103916 A CN 01103916A CN 1345907 A CN1345907 A CN 1345907A
- Authority
- CN
- China
- Prior art keywords
- solution
- water
- plugging agent
- tween
- petroleum well
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 10
- 239000003208 petroleum Substances 0.000 title claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 8
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims abstract description 8
- 229920000053 polysorbate 80 Polymers 0.000 claims abstract description 8
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 7
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 7
- 238000006386 neutralization reaction Methods 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 239000003129 oil well Substances 0.000 abstract description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- 239000008398 formation water Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 9
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The composition of water-plugging agent for oil well contains (wt%) 30-40% of acrylic acid, 45-52% of 30% sodium hydroxide, 14-20% of deionized water, 0.003-0.008% of N,N-methylene-diacrylamide solution, 0.4-1.0% of 5% ammonium persulfate solution, 0.2-1.5% of 5% sodium sulfite solution and 0.05-0.2% of Tween-80. They are planced into reactor in turn, stood still and polymerized, and pulverized so as to obtain the invented finished product. In the oil production said invention can change disordered flow or formation water in the oil reservior, and can make oil well obtain stable yield and high yield.
Description
The present invention relates to a kind of plugging agent, particularly is water plugging agent for petroleum well.
At present, each oil field in the oil recovery production practice, long-term existence oil well by not moisture to moisture, water string, Shuitu advance, a series of problems such as water logging, the major cause that causes these problems is not have the ideal water shutoff material.People thirst for being useful on the novel plugging agent of oil-field development, exploitation use for this reason.
The objective of the invention is to overcome the deficiencies in the prior art and provide a kind of oil reservoir that allows in people's the current downflow of dredging, the change water damage is water conservancy, increases the water plugging agent for petroleum well of crude production rate.
The object of the present invention is achieved like this: its component and weight percent content are, vinylformic acid 30-40%, 30% sodium hydroxide 45-52%, deionized water 14-20%, N,N methylene bis acrylamide solution 0.003-0.008%, 5% ammonium persulfate solution 0.4-1.0%, 5% sodium sulfite solution 0.2-1.5%, tween-80 0.05-0.2%.Its making method is: in proportion earlier with vinylformic acid, deionized water is put into reactor, adds the neutralization of 30% sodium hydroxide, after neutralization finishes, add N, N-methylene-bisacrylamide, tween-80 are warming up to 40 ℃-50 ℃, add 5% ammonium persulfate solution, 5% sodium sulfite solution stirs, leave standstill polymerization, obtain the gel state work in-process, will be finished product after work in-process granulation, oven dry, the pulverizing.
Compared to existing technology, advantage of the present invention is:
1, uses the present invention that watered-out well is resumed production, improve the ultimate recovery factor of oil well.
2, make the moisture decline of aqueous well, increase the range of product oil well output.
3, can control Di Shui, limit water coning effectively, prolong the oil well water breakthrough time, promote the oil well temperature to produce high yield.
4, to the water injection well profile control, can effectively control the most permeable zone water regain, in the moisture rising of bigger regional inner control, improving well group, to adopt suction rate effect obvious to well group.
5, leakage taking place and use the present invention's leak stopping rapidly, do not influence normal rig time, has shortened completion period in the drilling process.
6, in the process of oil production, no matter be the water that injects, or local water flowing in oil reservoir, the mobile of it is unordered, uses the present invention, can change this unordered flowing, allow oil reservoir in people's the current downflow of dredging, the change water damage is water conservancy, makes oil well reach the purpose of long-term high and stable yields.
Below in conjunction with embodiment in detail the present invention is described in detail.
Component of the present invention and weight percent content are represented with following table:
| Material component | Weight percent content (%) | |||||
| Vinylformic acid | 32.97 | ?33.45 | ?34.02 | ?33.18 | ?30. | ?40 |
| 30% sodium hydroxide | 49.45 | ?50.23 | ?50.40 | ?45.17 | ?52 | ?45 |
| Deionized water | 16.48 | ?15.22 | ?14 | ?20 | ?17.12 | ?14 |
| N,N methylene bis acrylamide | 0.005 | ?0.003 | ?0.004 | ?0.006 | ?0.007 | ?0.008 |
| 5% ammonium persulfate solution | 0.66 | ?0.86 | ?1.0 | ?0.80 | ?0.40 | ?0.6 |
| 5% sodium sulfite solution | 0.33 | ?0.14 | ?0.47 | ?0.28 | ?0.42 | ?0.2 |
| Tween---80 | 0.105 | ?0.097 | ?0.106 | ?0.664 | ?0.053 | ?0.192 |
Making method embodiment of the present invention:
The apparatus that the present invention uses is a reactor.At first reactor is ready to.Undertaken by following step then:
Earlier with vinylformic acid, deionized water is put into reactor in proportion, adds the neutralization of 30% sodium hydroxide; After neutralization finishes, add N,N methylene bis acrylamide more in proportion, tween-80, heating makes it be warming up to 40 ℃-50 ℃ then; Add 5% ammonium persulfate solution more in proportion, 5% sodium sulfite solution stirs, and leaves standstill polymerization, obtains the gel state work in-process; Finished product will promptly be obtained after work in-process granulation, oven dry, the pulverizing.
Claims (3)
1, a kind of water plugging agent for petroleum well is characterized in that: its component and weight percent content are vinylformic acid 30-40%, 30% sodium hydroxide 45-52%, deionized water 14-20%, N,N methylene bis acrylamide solution 0.003-0.008%, 5% ammonium persulfate solution 0.4-1.0%, 5% sodium sulfite solution 0.2-1.5%, tween--80 0.05-0.2% put into them in the reactor in order, after leaving standstill polymerization, after pulverization process, obtain finished product.
2, water plugging agent for petroleum well according to claim 1, it is characterized in that: its component and weight percent content can also be vinylformic acid 32.97%, 30% sodium hydroxide 49.45%, deionized water 16.48%, N,N methylene bis acrylamide solution 0.005%, 5% ammonium persulfate solution 0.66%, 5% sodium sulfite solution 0.33%, tween--80 0.105%.
3, a kind of production method of water plugging agent for petroleum well as claimed in claim 1 is characterized in that: it is undertaken by following step,
A, in proportion earlier with vinylformic acid, deionized water is put into reactor, adds the neutralization of 30% sodium hydroxide,
After b, neutralization finish, add N,N methylene bis acrylamide, tween-80 is warming up to 50 ℃, adds 5% ammonium persulfate solution, and 5% sodium sulfite solution stirs, and leaves standstill polymerization, obtains the gel state work in-process,
C, will be finished product after work in-process granulation, oven dry, the pulverizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01103916 CN1345907A (en) | 2000-09-28 | 2001-02-14 | Water plugging agent for petroleum well |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00124628 | 2000-09-28 | ||
| CN00124628.3 | 2000-09-28 | ||
| CN 01103916 CN1345907A (en) | 2000-09-28 | 2001-02-14 | Water plugging agent for petroleum well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1345907A true CN1345907A (en) | 2002-04-24 |
Family
ID=25739553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01103916 Pending CN1345907A (en) | 2000-09-28 | 2001-02-14 | Water plugging agent for petroleum well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1345907A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313560C (en) * | 2004-09-22 | 2007-05-02 | 中国石油天然气股份有限公司 | Method for preparing super absorbent resin by underground polymerization |
| CN1313561C (en) * | 2004-09-22 | 2007-05-02 | 中国石油天然气股份有限公司 | Preparation process for preparing inorganic filler type water-absorbent resin by underground polymerization |
| CN1323220C (en) * | 2004-05-25 | 2007-06-27 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | High strength and readily soluble nano water shutoff agent |
| CN1333036C (en) * | 2003-06-06 | 2007-08-22 | 吴凤祥 | Pre-crosslinked granular plugging agent and its production |
| CN103012667A (en) * | 2012-11-24 | 2013-04-03 | 中国石油大学(华东) | Synthesis method for selective water shutoff agent for water control and sand prevention of oil well |
| CN106543997A (en) * | 2016-10-24 | 2017-03-29 | 西南石油大学 | From the resin profile control agent of plastic under formation temperature effect |
-
2001
- 2001-02-14 CN CN 01103916 patent/CN1345907A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333036C (en) * | 2003-06-06 | 2007-08-22 | 吴凤祥 | Pre-crosslinked granular plugging agent and its production |
| CN1323220C (en) * | 2004-05-25 | 2007-06-27 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | High strength and readily soluble nano water shutoff agent |
| CN1313560C (en) * | 2004-09-22 | 2007-05-02 | 中国石油天然气股份有限公司 | Method for preparing super absorbent resin by underground polymerization |
| CN1313561C (en) * | 2004-09-22 | 2007-05-02 | 中国石油天然气股份有限公司 | Preparation process for preparing inorganic filler type water-absorbent resin by underground polymerization |
| CN103012667A (en) * | 2012-11-24 | 2013-04-03 | 中国石油大学(华东) | Synthesis method for selective water shutoff agent for water control and sand prevention of oil well |
| CN103012667B (en) * | 2012-11-24 | 2015-06-10 | 中国石油大学(华东) | Synthesis method for selective water shutoff agent for water control and sand prevention of oil well |
| CN106543997A (en) * | 2016-10-24 | 2017-03-29 | 西南石油大学 | From the resin profile control agent of plastic under formation temperature effect |
| CN106543997B (en) * | 2016-10-24 | 2019-07-09 | 西南石油大学 | From the resin profile control agent of plastic under formation temperature effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103468230A (en) | Secondary cross-linking profile control and flooding agent and preparation method and application thereof | |
| CN103216211B (en) | Profile control method for fractured reservoir | |
| CN106008803B (en) | A kind of high temperature resistant cross-linked acid thickening agent and preparation method thereof | |
| CN101412905A (en) | Preparation method of composite fracturing fluid for hydraulic fracturing | |
| CN104861953A (en) | Oil field fracture temporary plugging agent and preparation method thereof | |
| CN111636848B (en) | Method for improving oil reservoir recovery ratio after polymer flooding | |
| CN109369848A (en) | A kind of functional form temperature-resistant anti-salt plugging agent and preparation method thereof | |
| CN102558469B (en) | Cross-linking agent for profile control and oil displacement for high-temperature oil reservoir, as well as preparation method and application for same | |
| CN108729893B (en) | Foam composite cold recovery method for improving recovery ratio of heavy oil reservoir | |
| CN104312573A (en) | Crosslinking-free emulsion thickener for fracturing and preparation method thereof | |
| CN1345907A (en) | Water plugging agent for petroleum well | |
| CN113185630A (en) | Biodegradable salt-tolerant thickening system and preparation method and application thereof | |
| CN106520107A (en) | Acryloyl morpholine polymer oil-displacing agent and preparation method thereof | |
| CN110578502A (en) | Microbial huff-puff oil production method for high-water-content heavy oil reservoir, heavy oil viscosity reduction method for high-water-content heavy oil reservoir and nutrition activator | |
| CN106634927A (en) | Authigenic acid-induced tackifying conrol system with oil washing effect and preparation method | |
| CN106958438B (en) | A kind of method for removing blockage of polymer flooding blocking well | |
| CN105111343A (en) | Preparation method of salt-resistant low molecular weight polyacrylamide | |
| CN113929801B (en) | Preparation method of thickener for ultrahigh-temperature acidizing and fracturing | |
| CN106947457A (en) | A kind of polymer acid liquor thickener | |
| CN104861949A (en) | Micro-scale dynamic dispersion agent and preparation method thereof | |
| CN110628410A (en) | High temperature resistant cross-linked acid system for acid fracturing and preparation method thereof | |
| CN111892683B (en) | Salt-resistant polymer for oil displacement and preparation method thereof | |
| CN105131921A (en) | Anti-salt anti-high-temperature high-intensity gel blocking agent | |
| CN111187606B (en) | A kind of surfactant for seawater-based recyclable clean fracturing fluid and preparation method thereof | |
| CN107722957A (en) | A kind of Application of weak gel profile agent based on cleaning fracturing outlet liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |