Invention Application
- Patent Title: DOWNHOLE TOOL, METHOD AND ASSEMBLY
- Patent Title (中): 井下工具，方法和组装
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Application No.: PCT/GB2015/052218Application Date: 2015-07-31
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Publication No.: WO2016016657A2Publication Date: 2016-02-04
- Inventor: SCOTT, Edward Docherty
- Applicant: DEEP CASING TOOLS LIMITED
- Applicant Address: 51 York Street Aberdeen Aberdeenshire AB1 5DP GB
- Assignee: DEEP CASING TOOLS LIMITED
- Current Assignee: DEEP CASING TOOLS LIMITED
- Current Assignee Address: 51 York Street Aberdeen Aberdeenshire AB1 5DP GB
- Agency: SHANKS, Andrew
- Priority: GB1413693.1 20140801
- Main IPC: E21B7/20
- IPC: E21B7/20
Abstract:
A tool assembly (10) comprises a casing section (12), and a downhole tool (14) comprising a rotary drive (16) and a cutting member (18). In use, the tool assembly (10) is disposed in a well borehole (B) and the rotary drive (16) operated to drive rotation of the cutting member (18) to cut the borehole (B). The downhole tool (14) comprises a tubular housing (20) and a cartridge assembly (36), the cartridge assembly (36) disposed within the housing (20) of the downhole tool (14) and comprising the rotary drive (16) of the downhole tool (14). A clutch (78) is provided to enable free movement of the cutting member (18) during normal operation, engagement of the clutch (78)preventing rotation of the cutting member (18)and the housing (20).
Information query
