发明名称 |
Systems and Methods to Inhibit Packoff Formation During Drilling Assembly Removal from a Wellbore |
摘要 |
Systems and methods to inhibit packoff during drilling assembly removal from a wellbore, utilizing a drilling assembly that includes a transition region between a first section having a first cross-sectional area and a second section having a second cross-sectional area, wherein the second cross-sectional area is greater than the first cross-sectional area. The transition region includes a fluidizing assembly configured to partially fluidize a portion of the cuttings bed that is proximal to the transition region, and/or be in fluid communication with a flow control assembly configured to control flow rate of a fluidizing stream from the fluidizing assembly and to the portion of cuttings bed.
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申请公布号 |
US2013153296(A1) |
申请公布日期 |
2013.06.20 |
申请号 |
US201213717164 |
申请日期 |
2012.12.17 |
申请人 |
APHALE CHINAR R.;VALSECCHI PIETRO;WALLACE JON M.;ZHOU FUPING |
发明人 |
APHALE CHINAR R.;VALSECCHI PIETRO;WALLACE JON M.;ZHOU FUPING |
分类号 |
E21B21/00;E21B7/00 |
主分类号 |
E21B21/00 |
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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