CN105733540A - A composite oil well blocking remover - Google Patents
A composite oil well blocking remover Download PDFInfo
- Publication number
- CN105733540A CN105733540A CN201410759009.0A CN201410759009A CN105733540A CN 105733540 A CN105733540 A CN 105733540A CN 201410759009 A CN201410759009 A CN 201410759009A CN 105733540 A CN105733540 A CN 105733540A
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- CN
- China
- Prior art keywords
- oil well
- weight
- composite oil
- well blocking
- blocking remover
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- 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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- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of petrochemical engineering, and particularly relates to a composite oil well blocking remover. The composite oil well blocking remover comprises 20-30% by weight of sulfamic acid, 5-10% by weight of castor oil polyoxyethylene ether, 4-8% by weight of citric acid, 1-5% by weight of potassium dichromate, 5-8% by weight of t-butyl alcohol and 5-10% by weight of a corrosion inhibitor, with the balance being water. The objective of the invention is to provide the composite oil well blocking remover with ideal effects.
Description
Technical field
The present invention relates to the technical field of petrochemical industry, specifically a kind of compound oil well block clearing agent.
Background technology
In oilfield development process, due to strata pressure, temperature rising, inject the impact of the factors such as being incompatible of water and outside fluid, opsonigenous substance gathering, cause the blockings such as inorganic salt, iron compound, biological clay, polymer, make production capacity can not get effective performance.In being particularly in, the oil field of rear development period, profit is complicated further, and pit shaft situation is deteriorated, and above-mentioned blocking is day by day serious.Therefore, the block clearing agent extensive use for oil well is got up, and the kind of block clearing agent is also varied, but current block clearing agent is poor to the solvability of silicate, carbonate, and stratum does not have protection poor yet.
Summary of the invention
It is an object of the invention to be in that to provide a kind of compound oil well block clearing agent satisfactory for result.
The technical solution used in the present invention is, a kind of compound oil well block clearing agent, described material forms by weight percentage: sulfamic acid 20-30%, castor oil polyoxyethylene ether 5-10%, citric acid 4-8%, weight complex acid potassium 1-5%, tert-butyl alcohol 5-8%, low-speed corrosion inhibitor 5-10%, all the other are water.
It is an advantage of the invention that the solvability improved silicate, carbonate, improve block clearing effect, quick corrosion, dissolving tamper, improve permeability, shorten the engineering time, effect of increasing production is obvious.
Detailed description of the invention
The present invention is further described with the following Examples.
Embodiment 1, a kind of compound oil well block clearing agent, described material forms by weight percentage: sulfamic acid 30%, castor oil polyoxyethylene ether 5%, citric acid 8%, weight complex acid potassium 1%, the tert-butyl alcohol 8%, low-speed corrosion inhibitor 5%, all the other are water.
Embodiment 2, a kind of compound oil well block clearing agent, described material forms by weight percentage: sulfamic acid 20%, castor oil polyoxyethylene ether 10%, citric acid 4%, weight complex acid potassium 5%, the tert-butyl alcohol 5%, low-speed corrosion inhibitor 10%, all the other are water.
Embodiment 3, a kind of compound oil well block clearing agent, described material forms by weight percentage: sulfamic acid 25%, castor oil polyoxyethylene ether 8%, citric acid 6%, weight complex acid potassium 3%, the tert-butyl alcohol 7%, low-speed corrosion inhibitor 8%, all the other are water.
Should be understood that this embodiment is merely to illustrate the present invention rather than restriction the scope of the present invention.Furthermore, it is to be understood that after having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims protection defined equally.
Claims (1)
1. a compound oil well block clearing agent, it is characterized in that, described material forms by weight percentage: sulfamic acid 20-30%, castor oil polyoxyethylene ether 5-10%, citric acid 4-8%, weight complex acid potassium 1-5%, tert-butyl alcohol 5-8%, low-speed corrosion inhibitor 5-10%, all the other are water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759009.0A CN105733540A (en) | 2014-12-10 | 2014-12-10 | A composite oil well blocking remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759009.0A CN105733540A (en) | 2014-12-10 | 2014-12-10 | A composite oil well blocking remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105733540A true CN105733540A (en) | 2016-07-06 |
Family
ID=56240309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410759009.0A Pending CN105733540A (en) | 2014-12-10 | 2014-12-10 | A composite oil well blocking remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105733540A (en) |
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2014
- 2014-12-10 CN CN201410759009.0A patent/CN105733540A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
|
| WD01 | Invention patent application deemed withdrawn after publication |