发明名称 |
Apparatus for and method of operating a well |
摘要 |
Apparatus and system for testing and producing a well in which the well is controlled adjacent the producing formation and may be shut-in or permitted to flow at the discretion of the operator. The well may be tested under flowing or shut-in conditions and after testing is completed the tubing may be hung off in the well with the well shut-in adjacent the producing formation.
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申请公布号 |
US4274486(A) |
申请公布日期 |
1981.06.23 |
申请号 |
US19790094941 |
申请日期 |
1979.11.16 |
申请人 |
OTIS ENGINEERING CORPORATION |
发明人 |
FREDD, JOHN V. |
分类号 |
E21B33/12;E21B34/10;E21B34/14;E21B41/00;E21B43/10;E21B49/08;(IPC1-7):E21B23/02;E21B47/06 |
主分类号 |
E21B33/12 |
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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