发明名称 METHOD FOR CIRCULATING A FLUID ENTRY OUT OF A SUBSURFACE WELLBORE WITHOUT SHUTTING IN THE WELLBORE
摘要 A method for removing a fluid influx from a subsea wellbore drilled using a pump to return fluid from the wellbore to the surface. The method includes detecting the influx when a rate of the return pump increases. Flow from the wellbore is diverted from the return pump to a choke line when the influx reaches the wellhead. A choke in the choke line is operated so that a rate of fluid pumped into the wellbore is substantially equal to a flow rate through the choke line. Fluid flow from the wellbore is redirected to the return pump inlet when the influx has substantially left the well.
申请公布号 US2011290494(A1) 申请公布日期 2011.12.01
申请号 US20100786456 申请日期 2010.05.25
申请人 COHEN JOHN 发明人 COHEN JOHN
分类号 E21B7/12;E21B47/00 主分类号 E21B7/12
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