Construction and Cementation Technologies for Dongfenghu Geothermal Well in Benxi City

Home > Archive>Volume 44, Issue 9, 2017 >53-57

Construction and Cementation Technologies for Dongfenghu Geothermal Well in Benxi City
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                        GENG YinGENG Yin
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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YU Zhi-jianYU Zhi-jian
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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XING Yun-taXING Yun-ta
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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YU Bao-guoYU Bao-guo
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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LI MingLI Ming
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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WANG YueWANG Yue
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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WANG Jing-zhangWANG Jing-zhang
The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
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Affiliation:The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development
Clc Number:P634
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Abstract:

The designed hole depth was 2000m for Dongfenghu geothermal well exploration construction project in Benxi of Liaoning Province, the well completion diameter was required to be 100mm. The construction was difficult because of the deep drilling and large completion diameter, complicated ground conditions with broken formation, leakage and caving development. This paper introduces the construction process, mainly including customized non-standard bit drilling, broken drill pipe treatment, hole reaming by pre-posed bit, cementing technology and drilling through cement plug, which can be reference for the similar projects.

Key words:geothermal well; obstacle bypassing; cementing technology; choke ring; pre-posed bit

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Received:April 10,2017
Revised:April 10,2017
Adopted:June 09,2017
Online: October 30,2017
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