发明名称 |
WELL DRILLING SYSTEMS AND METHODS WITH PUMP DRAWING FLUID FROM ANNULUS |
摘要 |
<p>A well pressure control method can include regulating pressure in a wellbore by operating a suction pump which draws fluid from an annulus formed between a drill string and the wellbore, the fluid entering the suction pump proximate the earth's surface. Another well pressure control method can include regulating pressure in a wellbore by operating a suction pump which applies suction pressure to an annulus formed between a drill string and the wellbore. A well drilling system can include a suction pump positioned proximate the earth's surface. The suction pump can receive fluid which exits an annulus formed between a drill string and a wellbore. WO 2013/126064 PCT/US2012/026419 Go Coo /., InN 1</p> |
申请公布号 |
AU2015271932(A1) |
申请公布日期 |
2016.01.21 |
申请号 |
AU20150271932 |
申请日期 |
2015.12.18 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
LEWIS, DERRICK W.;LOVORN, JAMES R.;BAKRI, EMAD |
分类号 |
E21B43/20;E21B21/08;E21B34/10 |
主分类号 |
E21B43/20 |
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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