发明名称 System for accessing oil wells with compliant guide and coiled tubing
摘要 The present invention provides a system including a spoolable compliant guide, injector and lubricator to obtain vertical access to any oil well and to insert coiled tubing therein to. The spoolable compliant guide provides a substantial distance between the injector and the annular well seal at the lubricator and functions as a crimp or bend resistor for the coiled tubing therein facilitating the imposition of compression forces thereon. This enables the injector to be conveniently positioned remote from the wellhead, not necessarily vertically above the wellhead, on the facility with the wellheads or on an entirely separate facility, vehicle or vessel. Wellheads on land, offshore or underwater can all be accessed. Pressurized well fluids are prevented from entering the spoolable compliant guide thus decreasing the risks associated with its damage, failure or emergency disconnection. The spoolable compliant guide is able to assume a compliant shape between the injector and the lubricator thus allowing dynamic relative movement between them without the use of heave compensators. The spoolable compliant guide can be used with a subsea lubricator while enabling the injector to remain above the sea surface on a floating vessel or platform. It can also be used between a lubricator, which is on an offshore platform or drilling rig, and an injector, which is on a floating vessel alongside.
申请公布号 US2002079108(A1) 申请公布日期 2002.06.27
申请号 US20010003974 申请日期 2001.10.24
申请人 HEADWORTH COLIN STUART 发明人 HEADWORTH COLIN STUART
分类号 E21B17/01;E21B19/22;E21B33/076;E21B33/08;(IPC1-7):E21B19/22;E21B41/04 主分类号 E21B17/01
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