AUTOMATED WELL PRESSURE CONTROL AND GAS HANDLING SYSTEM AND METHOD专利检索- .专门适用于水下钻进的专利检索查询-专利查询网

AUTOMATED WELL PRESSURE CONTROL AND GAS HANDLING SYSTEM AND METHOD
申请号	US15197449	申请日	2016-06-29	公开(公告)号	US20180003023A1	公开(公告)日	2018-01-04
申请人	Schlumberger Technology Corporation;			发明人	Yawan Couturier; Bastiaan Liezenberg; Glen Johnson; Vikas Rakhunde; Jesse Hardt;
摘要	A method includes pumping fluid into a drill string extending through a riser into a well. A managed pressure drilling system is operated to maintain a selected fluid pressure in the well between the well and the drill string. A fluid influx into the well or a fluid loss into a formation traversed by the well is detected using measurements of fluid pressure in the well and fluid flow into and out of the well. The method includes automatically abating the fluid influx by closing an annular blowout preventer disposed in the riser or abating the fluid loss by operating the annular blowout preventer and pumping a sacrificial fluid into the drill string.
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