Direction Optimization Model of Trenchless Horizontal Hole in Fractured Formation

被引：2

作者：

Sun, Tengfei ^{[1
]}

Ding, Liqin ^{[2
]}

Zhang, Yang ^{[1
]}

Wu, Baokang ^{[1
]}

Wang, Zhilei ^{[1
]}

Fan, Yacong ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing, Peoples R China

[2] China Nucl Power Engn Co Ltd, Beijing, Peoples R China

来源：

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2023年 / 58卷 / 06期

关键词：

trenchless horizontal hole; hole safety; fractured formation; direction optimization;

D O I：

10.1007/s10553-023-01479-8

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Whether the hole is in safe state is quite essential in the construction technology of trenchless directional horizontal hole. Many consequences caused by hole wall instability will seriously affect the normal construction of trenchless engineering. It is proved by theory and practice that when the underground excavation passes through the natural cracks in the stratum, the instability issue of the hole wall is serious. It is necessary to select mud with appropriate density to inject into the hole for auxiliary drilling, so as to ensure that no collapse or slurry leakage happens within the hole. In this paper, aiming at the trajectory optimization of trenchless horizontal well in fractured formation, a mechanical model is built, and the optimal drilling direction of horizontal well under specific working conditions is given with the help of programming calculation.

引用

页码：977 / 982

页数：6

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