CN1508213A - Washing and deblocking agent for oil well - Google Patents
Washing and deblocking agent for oil well Download PDFInfo
- Publication number
- CN1508213A CN1508213A CNA021555974A CN02155597A CN1508213A CN 1508213 A CN1508213 A CN 1508213A CN A021555974 A CNA021555974 A CN A021555974A CN 02155597 A CN02155597 A CN 02155597A CN 1508213 A CN1508213 A CN 1508213A
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- CN
- China
- Prior art keywords
- oil well
- organic acid
- acid salt
- cleans
- emulsifying dispersant
- 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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Abstract
The invention relates to a washing unstopping agent for oil development oil well, compounded by arene 30-80%, alcohol 1-10%, organic acid salt 2-10%, paraffin emulsifying dispersant 0.5-50%, high-efficiency washing agent 1-10% according to a certain wt%. It can not only dissolve organics such as asphaltine, gelatine, waxiness, etc, and strengthen base oil fluidity, but also prohibit reservoir clay expansion.
Description
Technical field
The present invention relates to a kind of oil development with cleaning unblocking agent, the oil well that particularly is used for paraffinic base, asphaltic base cleans de-plugging.
Technical background
The cleaning unblocking agent kind of using on the oil field at present is more, but specificity is strong, and is bigger to different oil property difference.Adopt its cleaning performance of oil type product good, but comprehensive cost height (existing market product price commonly used is generally 9000～11000 yuan/ton), adopt the generally anti-swollen weak effect of aq. type product, need the extra expansion-resisting agent that adds to handle, therefore increased running cost.
Summary of the invention
The purpose of this invention is to provide a kind of oil development easy to use matting unblocking agent.
The present invention is achieved in that
This product is made up of aromatic hydrocarbons, ethanol, organic acid salt, paraffin emulsifying dispersant, efficient detergent, and its weight percent consists of: aromatic hydrocarbons: 30～80%; Ethanol: 1～10%; Organic acid salt: 2～10%; Paraffin emulsifying dispersant: 0.5～50%; Detergent: 1～10%.
The present invention also adopts following technical scheme:
Described aromatic hydrocarbons is the mixture that contains this ring;
Described organic acid salt is a kind of sylvite;
Described paraffin emulsifying dispersant is a kind of than great, does not contain the organism of organosulfur chlorine;
Described detergent is the mixture of a kind of fluorochemical surfactant and alkylbenzene phenolic ether.
The advantage of this product is: [1] potion multiple-effect.[2] easy to use.[3] with low cost.
The key technical indexes of this unblocking agent is: cleaning efficiency 〉=95%; Dissolving colloidal bitumen ability 〉=9.6 * 10
-3G/min.ml.
Product can dissolve colloidal bitumen fast, removes organic tamper of immediate vicinity of wellbore.This product can use separately, also can be used with other unblocking agent product, it have improve the oil extraction capillary number, reduce crude oil at the adhesion work of rock surface, separate the lock effect that dewaters, clean the sedimentary multiple effect of crude oil heavy constituent.
Concrete enforcement
Product one: aromatic hydrocarbons 49%, ethanol 8%, organic acid salt 10%, detergent 10%, paraffin emulsifying dispersant 23%.
Product two: aromatic hydrocarbons 40%, ethanol 10%, organic acid salt 10%, detergent 5%, paraffin emulsifying dispersant 35%.
Product three: aromatic hydrocarbons 45%, ethanol 10%, organic acid salt 10%, detergent 2%, paraffin emulsifying dispersant 33%.
Product four: aromatic hydrocarbons 48%, ethanol 8%, organic acid salt 6%, detergent 5%, paraffin emulsifying dispersant 33%.
Embodiment
The present invention is by following synthetic fabrication process: add aromatic hydrocarbons, ethanol, organic acid salt, paraffin emulsifying dispersant, efficient detergent in enamel reaction still, stirring gets final product.
Claims (5)
1. oil well cleans unblocking agent, it is characterized in that: be made up of aromatic hydrocarbons, ethanol, organic acid salt, paraffin emulsifying dispersant, efficient detergent, its weight percent consists of: aromatic hydrocarbons: 30～80%; Ethanol: 1～10%; Organic acid salt: 2～10%; Paraffin emulsifying dispersant: 0.5～50%; Detergent: 1～10%.
2. oil well according to claim 1 cleans unblocking agent, and it is characterized in that: described aromatic hydrocarbons is the mixture that contains this ring;
3. oil well according to claim 1 cleans unblocking agent, and it is characterized in that: described organic acid salt is a kind of sylvite;
4. oil well according to claim 1 cleans unblocking agent, and it is characterized in that: described paraffin emulsifying dispersant is a kind of than great, does not contain the organism of organosulfur chlorine;
5. oil well according to claim 1 cleans unblocking agent, and it is characterized in that: described detergent is the mixture of a kind of fluorochemical surfactant and alkylbenzene phenolic ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021555974A CN1508213A (en) | 2002-12-13 | 2002-12-13 | Washing and deblocking agent for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021555974A CN1508213A (en) | 2002-12-13 | 2002-12-13 | Washing and deblocking agent for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1508213A true CN1508213A (en) | 2004-06-30 |
Family
ID=34235968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021555974A Pending CN1508213A (en) | 2002-12-13 | 2002-12-13 | Washing and deblocking agent for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1508213A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395305C (en) * | 2005-05-25 | 2008-06-18 | 中国石油天然气股份有限公司 | Acid surfactant oil well blockage removing process and formula |
| CN101544884B (en) * | 2009-05-07 | 2011-08-03 | 中国石油天然气股份有限公司 | Foam well flushing fluid and preparation method thereof |
| CN103541713A (en) * | 2013-10-12 | 2014-01-29 | 河南理工大学 | Coalbed methane near-wellbore area chemical block removing method |
| CN104946222A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Oil-base paraffin remover for oil wells |
| CN105860948A (en) * | 2015-05-25 | 2016-08-17 | 成都能生材科技开发有限责任公司 | Preparation method of polymer viscosity-reducing profile-control resistance-reducing physical dissolution agent PSR |
| CN106795425A (en) * | 2014-07-15 | 2017-05-31 | 萨索尔功能化学品有限公司 | Composition and method for controlling paraffin and pitch Geological Problems in well |
-
2002
- 2002-12-13 CN CNA021555974A patent/CN1508213A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395305C (en) * | 2005-05-25 | 2008-06-18 | 中国石油天然气股份有限公司 | Acid surfactant oil well blockage removing process and formula |
| CN101544884B (en) * | 2009-05-07 | 2011-08-03 | 中国石油天然气股份有限公司 | Foam well flushing fluid and preparation method thereof |
| CN103541713A (en) * | 2013-10-12 | 2014-01-29 | 河南理工大学 | Coalbed methane near-wellbore area chemical block removing method |
| CN103541713B (en) * | 2013-10-12 | 2016-03-30 | 河南理工大学 | A kind of coal bed gas near wellbore zone chemical plugging removal method |
| CN104946222A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Oil-base paraffin remover for oil wells |
| CN104946222B (en) * | 2014-03-24 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of oil well oil-base paraffin remover |
| CN106795425A (en) * | 2014-07-15 | 2017-05-31 | 萨索尔功能化学品有限公司 | Composition and method for controlling paraffin and pitch Geological Problems in well |
| CN105860948A (en) * | 2015-05-25 | 2016-08-17 | 成都能生材科技开发有限责任公司 | Preparation method of polymer viscosity-reducing profile-control resistance-reducing physical dissolution agent PSR |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |