| 发明名称 |
Oil well cleaning compositions |
| 摘要 |
A method for cleaning oil wells to increase the flow of oil thereof by use of a unique cleaning emulsion comprising of water, hydrocarbon solvent, terpene hydrocarbon material, demulsifier, detergent, and optionally an acid. This one step method provides for the simultaneously cleaning/removal of asphaltene and/or paraffin and scale at a wide range of temperatures. This method can be used alone or with the assistance of a wash tool which is a combination pressure and surge wash tool having a nipple assembly, or a hydro self-rotating nozzle wash tool. |
| 申请公布号 |
US9074121(B2) |
申请公布日期 |
2015.07.07 |
| 申请号 |
US201213385544 |
申请日期 |
2012.02.24 |
| 申请人 |
|
发明人 |
Dyer Richard J. |
| 分类号 |
E21B37/00;C09K8/524 |
主分类号 |
E21B37/00 |
| 代理机构 |
|
代理人 |
Mullen James J. |
| 主权项 |
1. A cleaning emulsion useful to remove asphaltene and/or paraffin and scale simultaneously from oil wells consisting of:
i) from about 10% to about 40% by weight, water; ii) from about 0.1% to about 15% by weight detergent; iii) from about 10% to about 40.0% by weight, hydrocarbon solvent; iv) from about 10% to about 40% by weight terpene hydrocarbon material; v) from about 0.000001 to about 0.00001% by weight demulsifier; and vi) optionally, from about 0.1% to about 15% by weight acid, with the proviso that said emulsion is in a stable state over a wide range of temperatures. |
| 地址 |
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