Drill-through spool body sleeve assembly

专利名称：Drill-through spool body sleeve assembly发明人：Scott Stjernstrom,Michael Matusek,David H.

Theiss

申请号：US10409872申请日：20030409

公开号：US20040200614A1公开日：20041014

专利附图：

摘要：A drill-through spool body sleeve assembly comprises a test sleeve removablyinstalled within a drill-through spool body having a bore with the terminal ends of theouter diameter of the test sleeve sealingly engaging the bore wall. The sleeve assembly

also comprises a wear bushing removably installed in the bore between the bore walland the test sleeve. The test sleeve is of sufficient thickness to pressure test the spoolbody outlets, ports, and valves before drilling and production. The test sleeve seals thebore from the outside of the spool body during the pressure testing. After the pressuretests are completed, the test sleeve is removed from the spool body, leaving the wearbushing in place. The wear bushing protects the bore wall, outlets, ports, and valves whileallowing equipment such as drilling and wellhead equipment to pass through the spoolbody. After the well is drilled and the casing strings are installed, the wear bushing isremoved from the spool body to allow the installation of the production tubing andproduction hanger within the spool body.

申请人：COOPER CAMERON CORPORATION

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