发明名称 |
Automatic well pump skimmer level control |
摘要 |
A control system for an in-well pump for recovery of hydrocarbons which are lighter than water. Two electrical probes and a float switch are used to control the automatic raising and lowering of the pump within the well to always maintain its input within the hydrocarbon layer. The pump is also controlled so that it only operates when its input is within the hydrocarbons to assure that it does not pump water and that it is not operated in air.
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申请公布号 |
US5049037(A) |
申请公布日期 |
1991.09.17 |
申请号 |
US19890456308 |
申请日期 |
1989.12.26 |
申请人 |
R. E. WRIGHT ASSOCIATES, INC. |
发明人 |
CARSON, GLENN S.;BENDER, KERMIT W. |
分类号 |
B09C1/00;E21B43/12;E21B43/38;E21B47/04;F04B49/025 |
主分类号 |
B09C1/00 |
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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