Drilling technology for PBR01 geothermal well in North Pingdingshan Geothermal Demonstration Zone

doi:10.12143/j.ztgc.2021.S1.044

Home > Archive>Volume 48, Issue S1, 2021 >264-268. DOI:10.12143/j.ztgc.2021.S1.044

Drilling technology for PBR01 geothermal well in North Pingdingshan Geothermal Demonstration Zone
DOI:
                        10.12143/j.ztgc.2021.S1.044
                    
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Author:
                        MENG Xiangrui1,2MENG Xiangrui
The Fourth Geological Brigade of Henan Province Non-ferrous Metals Geological and Mineral Recources Bureau, Zhengzhou Henan 451450, China;Henan deep hole drilling engineering technology research center of Henan Province,Zhengzhou Henan 451450, China
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XIE Yongde1,2XIE Yongde
The Fourth Geological Brigade of Henan Province Non-ferrous Metals Geological and Mineral Recources Bureau, Zhengzhou Henan 451450, China;Henan deep hole drilling engineering technology research center of Henan Province,Zhengzhou Henan 451450, China
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QI Xintang1,2QI Xintang
The Fourth Geological Brigade of Henan Province Non-ferrous Metals Geological and Mineral Recources Bureau, Zhengzhou Henan 451450, China;Henan deep hole drilling engineering technology research center of Henan Province,Zhengzhou Henan 451450, China
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GUO Jiahuan1,2GUO Jiahuan
The Fourth Geological Brigade of Henan Province Non-ferrous Metals Geological and Mineral Recources Bureau, Zhengzhou Henan 451450, China;Henan deep hole drilling engineering technology research center of Henan Province,Zhengzhou Henan 451450, China
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KANG Shanxiu2KANG Shanxiu
Henan deep hole drilling engineering technology research center of Henan Province,Zhengzhou Henan 451450, China
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Affiliation:1.The Fourth Geological Brigade of Henan Province Non-ferrous Metals Geological and Mineral Recources Bureau, Zhengzhou Henan 451450, China;2.Henan deep hole drilling engineering technology research center of Henan Province,Zhengzhou Henan 451450, China
Clc Number:P634
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Abstract:

In order to win the battle of preventing and controlling air pollution， fulfil the task of replacing coal burning， the Pingdingshan Municipal Party Committee and Government entrusted Henan provincial Non-ferrous Metals Geological Mineral Resources Bureau to organize the geothermal exploration and development in Pingdingshan area. According to the regional geological conditions and stratigraphic characteristics， Henan Provincial Non-ferrous Metals Geological Mineral Resources Bureau designed and organized the construction of well PBR01 in north Pingdingshan geothermal demonstration area. This paper introduces the whole process of the project designing and constructing from the aspects of drilling equipment selection， construction technology selection and drilling fluid configuration. Through drilling construction， the problem of large-diameter deep hole drilling in this area has been solved， which has played a good demonstration role for the subsequent development and application in this area. Through the analysis of the drilling time curve， the drilling efficiency of different areas in this region is understood， and the scheme to improve the large diameter drilling efficiency in hard rocks is put forward.

Key words:geothermal construction;drilling fluid configuration;drilling time curve analysis;drilling efficiency study

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History

Received:June 15,2021
Revised:June 15,2021
Adopted:July 06,2021
Online: December 06,2021
Published: September 01,2021

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