发明名称 |
Method and apparatus for well bore cleaning |
摘要 |
Apparatus connected to the downhole end of a tubing string for cleaning and flushing wells has a threaded connection to the string and at least one primary jet to direct circulating gases toward the downhole end of the well, together with a plurality of secondary jets which are arranged around the exterior of the tubular member and directed upwardly at an acute angle with respect to the longitudinal axis of the tubular member and skewed radially at an acute angle with respect to the surface of the tubular member the skew angle being opposed to the thread angle so as to tend to tighten the threaded connection and the upwardly directed gas volume being approximately one and one-half to four times that which is directed toward the downhole end of the well.
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申请公布号 |
US7011158(B2) |
申请公布日期 |
2006.03.14 |
申请号 |
US20030655956 |
申请日期 |
2003.09.05 |
申请人 |
DAVIS JERRY LYNN;NOLES JR LEGAL REPRESENTATIVE |
发明人 |
DAVIS JERRY LYNN;NOLES, JR., LEGAL REPRESENTATIVE JERRY WAYNE |
分类号 |
E21B21/12;B08B9/04;E21B21/14;E21B28/00;E21B37/00 |
主分类号 |
E21B21/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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