发明名称 |
PRESSURE CONTROL DEVICE FOR WIRELINE CABLES |
摘要 |
An embodiment of a pressure control assembly for a wireline cable disposed in a wellbore comprises a housing frame, at least a pair of sealing devices disposed in the housing, the sealing devices defining an aperture for a cable to pass therethrough and a chamber therebetween, and a lubricant recirculation system for injecting and recirculating a lubricant into the chamber, the assembly operable to lubricate the cable and seal the cable, and maintain a predetermined pressure within the housing frame while the cable is disposed therein. |
申请公布号 |
WO2010105173(A2) |
申请公布日期 |
2010.09.16 |
申请号 |
WO2010US27160 |
申请日期 |
2010.03.12 |
申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;VARKEY, JOSEPH;PROTASOV, VADIM;YUN, JUSHIK, JAY |
发明人 |
VARKEY, JOSEPH;PROTASOV, VADIM;YUN, JUSHIK, JAY |
分类号 |
E21B33/08;E21B19/00;E21B33/02 |
主分类号 |
E21B33/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|