LAPSE:2023.25016
Published Article
LAPSE:2023.25016
Increasing Drilling Speed by Absorption and Hydraulic Supercharging of Drill String in Formation Containing Hydrogen Sulfide: A Case Study
Yongwang Liu, Xiaoyuan Chen, Yixiang Niu, Zhichuan Guan, Wei Wang, Chuanfu Liu
March 28, 2023
Increasing drilling speed and shortening the well construction period are the goals of the drilling field. The use of downhole speed-up tools has been noted for its advantages such as no additional cost, no change in drilling equipment and no impact on normal drilling operations. However, conventional downhole speed-up tools cannot meet the needs when the drilled formation contains hydrogen sulfide. Then, the technology test on increasing drilling speed by absorption and hydraulic supercharging of drill string in hydrogen sulfide formation was carried out in well Wanweiye1 (WWY1), Anhui Province, China. The results show that: firstly, the speed-up device by absorption and hydraulic supercharging of drill string can be used in the formation containing hydrogen sulfide, and can still perform normal drilling operations with a hydrogen sulfide concentration of 567 ppm; secondly, the speed-up technology by absorption and hydraulic supercharging of drill string has a significant speed-raising effect in the region containing hydrogen sulfide and can raise the speed by 62.5% to 92.05%; thirdly, the speed-up device by absorption and hydraulic supercharging of drill string can meet the needs of high density killing fluid. Once the well WWY1 suffered an overflow, the device did not affect the killing operation when the killing fluid density reached 2.2 g/cm3 and killing time reached 104.8 h.
Keywords
downhole speed-up tools, hydrogen sulfide, the speed-up technology by drill string absorption and hydraulic supercharging, well WWY 1
Suggested Citation
Liu Y, Chen X, Niu Y, Guan Z, Wang W, Liu C. Increasing Drilling Speed by Absorption and Hydraulic Supercharging of Drill String in Formation Containing Hydrogen Sulfide: A Case Study. (2023). LAPSE:2023.25016
Author Affiliations
Liu Y: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Chen X: Jiangsu Drilling Company of Sinopec East China Engineering Company, Qingdao 266580, China
Niu Y: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Guan Z: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Wang W: Jiangsu Drilling Company of Sinopec East China Engineering Company, Qingdao 266580, China
Liu C: Petroleum Engineering Research Institute of Petro China Tarim Oilfield Company, Korla 841000, China
Journal Name
Energies
Volume
15
Issue
16
First Page
5767
Year
2022
Publication Date
2022-08-09
Published Version
ISSN
1996-1073
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PII: en15165767, Publication Type: Journal Article
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LAPSE:2023.25016
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doi:10.3390/en15165767
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