发明名称 |
DEVICE FOR A DOWNHOLE APPARATUS FOR MACHINING OF CASINGS AND ALSO A METHOD OF DEPOSITING MACHINED SHAVINGS |
摘要 |
There is described a device for machining apparatus (2) arranged for machining of a portion of a casing (12) positioned in a wellbore (1), wherein a return fluid conduit (23) extends from the machining apparatus (2) in a direction toward a deposit area (13) arranged in the wellbore (1). Also described is a method for machining of a portion of a casing (12) positioned in a wellbore (1), wherein the method comprises the steps of arranging a return fluid conduit (23) between a machining apparatus (2) and a deposit area (13) or an area connected to the deposit area (13); providing a particle carrying liquid flow (M) in a direction from the machining apparatus (2) and toward the deposit area (13); during the machining of the casing (12) leading metal shavings (122) into the liquid flow (M); directing the liquid flow (M) into the return fluid conduit (23), as the metal shavings (122) are held back and deposited in the wellbore (1). |
申请公布号 |
EA019855(B1) |
申请公布日期 |
2014.06.30 |
申请号 |
EA20110090248 |
申请日期 |
2010.04.12 |
申请人 |
WEST PRODUCTION TECHNOLOGY |
发明人 |
KROHN HELGE;GRINROED MADS |
分类号 |
E21B37/00;E21B10/32;E21B29/00 |
主分类号 |
E21B37/00 |
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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