Treatment of Bit Burning in Hard Formation with Eccentric Wedge Sidetracking

LIAO Yuan-su; HU Qi-feng; LIAO Chang-sheng; MIAO Sai; ZHUO Lian-ming

doi:10.3969/j.issn.1672-7428.2015.09.002

2015 No. 9

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LIAO Yuan-su, HU Qi-feng, LIAO Chang-sheng, MIAO Sai, ZHUO Lian-ming. Treatment of Bit Burning in Hard Formation with Eccentric Wedge Sidetracking[J]. DRILLING ENGINEERING, 2015, (9): 5-8. doi: 10.3969/j.issn.1672-7428.2015.09.002

Citation:

LIAO Yuan-su, HU Qi-feng, LIAO Chang-sheng, MIAO Sai, ZHUO Lian-ming. Treatment of Bit Burning in Hard Formation with Eccentric Wedge Sidetracking[J]. DRILLING ENGINEERING, 2015, (9): 5-8. doi: 10.3969/j.issn.1672-7428.2015.09.002

Treatment of Bit Burning in Hard Formation with Eccentric Wedge Sidetracking

Publish Date: 10 September 2015

Abstract

Abstract

The paper introduces an improved retrievable eccentric wedge about its sidetracking method, technological meas-ures and the efficiency.Compared with the traditional one, this eccentric wedge has the advantages of fast sidetracking, in-clined coring, no accident threat, no influence on subsequent wire-line core drilling, no specific reaming process and reuse of the eccentric wedge, by which the technical difficulties of bit burning were solved with sidetracking for ZK901 in hard rocks.
- sidetracking /
- eccentric wedge /
- deflecting drilling tool /
- wire-line core drilling /
- bit burning accident