Drilling design and construction technology of shale gas geological survey Well Wanwangdi-3 in the Lower Yangtze Block

YAN Jia; LIU Bei; CAO Longlong; ZHANG Hengchun; WANG Wen; WANG Wenshi; YIN Hao; XUE Qianbing; LIANG Nan and REN Qiwei; ${author.authorNameEn}

doi:10.12143/j.ztgc.2023.03.010

2023 Vol. 50, No. 3

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Article navigation > DRILLING ENGINEERING > 2023 > 50(3): 74-82

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YAN Jia, LIU Bei, CAO Longlong, ZHANG Hengchun, WANG Wen, WANG Wenshi, YIN Hao, XUE Qianbing, LIANG Nan and REN Qiwei, . 2023. Drilling design and construction technology of shale gas geological survey Well Wanwangdi-3 in the Lower Yangtze Block. DRILLING ENGINEERING, 50(3): 74-82. doi: 10.12143/j.ztgc.2023.03.010

Citation:

YAN Jia, LIU Bei, CAO Longlong, ZHANG Hengchun, WANG Wen, WANG Wenshi, YIN Hao, XUE Qianbing, LIANG Nan and REN Qiwei, . 2023. Drilling design and construction technology of shale gas geological survey Well Wanwangdi-3 in the Lower Yangtze Block. DRILLING ENGINEERING, 50(3): 74-82. doi: 10.12143/j.ztgc.2023.03.010

Drilling design and construction technology of shale gas geological survey Well Wanwangdi-3 in the Lower Yangtze Block

1.Institute of Exploration Techniques, CAGS, Langfang Hebei 065000， China,
2.Xi’an Mineral Resources Research Center of China Geological Survey， Xi’an Shaanxi 710100， China

More Information

Corresponding author: LIU Bei, liubei02105228@163.com

Received Date: 11 January 2023

Revised Date: 19 April 2023

Abstract

Abstract

The Well Wanwangdi-3 （hereinafter referred to as Well WWD-3） is a large-diameter shale gas geological survey directional well which was deployed in Wangjiang Depression of the Lower Yangzi Block， the design depth is 1950m， and the total depth is 1985m. The purpose of drilling is to explore the gas content of the Permian Dalong Formation， Longtan Formation and Gufeng Formation， and verify the regional stratigraphic sequence. This paper introduces the well design and construction process of Well WWD-3， in view of the risks and problems in drilling process， combining the predictive and actual drilling， four technical guarantee measures are put forward including drilling safety， directional drilling， drilling fluid use management and geocloud real-time monitoring of drilling conditions， to ensure the smooth and successful completion of drilling tasks. Finally， combining the actual drilling situation and logging data， the drilling quality， efficiency and core quality were analyzed. The goals of no major accidents during the drilling process， qualified drilling quality， and high-efficient construction progress were achieved. Good economic benefits were obtained， meanwhile， good technical experience for the construction of large-diameter drilling projects in this area is also provided.
- shale gas /
- geological survey well /
- large-diameter well /
- directional well /
- wireless measured while drilling /
- drilling fluid /
- geocloud

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References

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