Development and application of turbodrills in hot dry rock drilling

ZHANG De-long; WENG Wei; ZHAO Chang-liang; XU Jun-jun; YANG Peng; HUANG Yu-wen; HU Zhen-zhong

doi:10.19637/j.cnki.2305-7068.2018.01.001

Volume 6 Issue 1

Mar. 2018

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ZHANG De-long, WENG Wei, ZHAO Chang-liang, et al. 2018: Development and application of turbodrills in hot dry rock drilling. Journal of Groundwater Science and Engineering, 6(1): 1-6. doi: 10.19637/j.cnki.2305-7068.2018.01.001

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ZHANG De-long, WENG Wei, ZHAO Chang-liang, et al. 2018: Development and application of turbodrills in hot dry rock drilling. Journal of Groundwater Science and Engineering, 6(1): 1-6. doi: 10.19637/j.cnki.2305-7068.2018.01.001

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Development and application of turbodrills in hot dry rock drilling

doi: 10.19637/j.cnki.2305-7068.2018.01.001

1Beijing Institute of Exploration Engineering, No.29 Xueyuan Road, Haidian District, Beijing 100083, China. 2The Second Hydro-geology & Geo-engineering Brigade of Shandong Provincial Bureau of Geology and Mineral, Dezhou, Shandong Province 253015, China. 3SINOPEC Henan Oilfield Branch Company, Henan Nanyang Oilfield, Nanyang City, Henan Province 473132, China.

Publish Date: 2018-03-28

Abstract

Abstract

The strata of hot dry rock (HDR) are usually igneous rocks with high temperature which are challenging for drilling activities. This paper deals with the key technology and research of turbodrills, introduced the application of turbodrills in HDR drilling at home and broad, and analyzed the field application cases. With the advancement such as low speed high torque turbodrill, reduction turbodrills, independent spindlesection and PDC bearings and so on, the application of turbodrills has widely expanded. The application of high-temperature turbodrills in Fenton Hill, HDR geothermal wells, high-temperature formation in Tahe oilfield all proved that turbodrills are the best downhole motors in deep high-temperature HDR drilling, thus they deserve further research and generalization.
- Hot dry rock,
- HDR drilling,
- Geothermal drilling,
- Turbodrill,
- Field application

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References(16)

References

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