专利名称：Closed loop fluid-handling system for use
during drilling of wellbores
发明人：The designation of the inventor has not yet
been filed
申请号：EP00112899.0申请日：19970505公开号：EP1048819A1公开日：20001102
专利附图：
摘要：This invention provides a fluid-handling system for use in underbalanced drillingoperations. The system includes a first vessel which acts as a four phase separator. The
first vessel includes a first stage for separating solids. Oil and gas are separated at asecond stage. A pressure sensor provides signals to a pressure controller, whichmodulates a gas flow valve coupled to the vessel for discharging gas from the firstvessel. The pressure controller maintains the pressure in the first vessel at a
predetermined value. An oil level sensor placed in the first vessel provides a signal to anoil level controller. The oil level controller modulates an oil flow valve coupled to thevessel to discharge oil from the first vessel into a second vessel. Water is discharged intoa third vessel. Water from the third vessel is discharged via a water flow control valve,which is modulated by a level controller as a function of the water level in the thirdvessel. Any gas in the third vessel is discharged by modulating a gas control valve as afunction of the pressure in the third vessel.
申请人：BAKER HUGHES INCORPORATED
地址：3900 Essex Lane Suite 1200 Houston Texas 77027 US
国籍：US
代理机构：Finck, Dieter, Dr.Ing.
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