发明名称 |
DOWNHOLE TOOL AND CONTROL MODULE |
摘要 |
Described herein is a reamer tool (100) having a body (105) with bays (115) in which cutter arms (110) are mounted for deployment between a stowed position and a deployed position. A deployment mechanism is provided for deploying the cutter arms from their stowed position to their deployed position that maintains each cutter arm in a position that is substantially parallel to a longitudinal axis of the body (105) whilst in its stowed position and in its deployed position as well as during its deployment from its stowed position to its deployed position. A control module (300) is also described for controlling the deployment of the cutter arms (110). The control module (300) comprises a motor (310), a gearing mechanism (315) and a moveable element (320) that closes a port (385) in a first position and opens the port (385) in a second position. Fluid flow enters a chamber (340) behind a piston (170) through the port (385) to allow pressure to build up before actuating the piston (170) and thereby the deployment mechanism for the cutter arms (170). |
申请公布号 |
US2014110171(A1) |
申请公布日期 |
2014.04.24 |
申请号 |
US201214112229 |
申请日期 |
2012.10.22 |
申请人 |
LASSOIE JEAN-PIERRE;HARDIN JOHN RANSFORD;HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
LASSOIE JEAN-PIERRE;HARDIN JOHN RANSFORD |
分类号 |
E21B44/00;E21B10/32 |
主分类号 |
E21B44/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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