Hybrid energy transmission for liquefied shale gas and electricity using cryogenic and superconducting technologies: A technical and economic study of Sichuan, China

Zheng, Zixuan; Chen, Yu; Chen, Xiaoyuan; Shen, Boyang; Xiao, Xianyong; Jiang, Shan; Zhang, Mingshun; Gou, Huayu; Pang, Zhou; Long, Yi

doi:10.1016/j.fuel.2022.126333

Cited by 8 publications

(1 citation statement)

References 111 publications

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“…As a widely distributed, efficient and clean gas energy, shale gas has been the key study direction of China’s energy development strategy in recent years. − Block H in western Hubei-eastern Chongqing is a crucial area for shale gas development in Hubei province, and its Wujiaping Formation shale is the shale gas reservoir with the most exploration potential after the large-scale commercial development of Wufeng-Longmaxi Formation in Sichuan Basin. − The Wujiaping Formation in this area is characterized by high organic abundance, moderate maturation, and favorable preservation conditions, and has attracted considerable attention from numerous domestic oil companies . Sinopec and PetroChina have carried out exploration and development plans targeting this strata.…”

Section: Introductionmentioning

confidence: 99%

Study on Key Technologies of Geosteering for Shale Gas Horizontal Wells in the Complex Structural Area of Block H in Western Hubei-Eastern Chongqing

Shi,

Feng,

Zhao

et al. 2024

ACS Omega

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Block H, located in western Hubei-eastern Chongqing, remains at a low exploration degree. Characterized by its complex structural attributes, the area presents adverse conditions such as a thin thickness of high-quality shale reservoir, rapid lateral formation occurrence, and poor stratigraphic correlation, challenging conventional geosteering methods. The primary shale gas reservoir in Block H corresponds to the Upper Permian Wujiaping Formation. To ensure that the shale gas horizontal wells in this block effectively penetrate high-quality gas reservoirs, this study delves into the geological characteristics of this stratigraphic unit, identifies principal challenges faced by current geosteering techniques, and introduces a tailored technical solution. This solution encompasses the application of real-time 3D geological modeling to track while drilling, identification of steering marker layers, optimization of steerable tools, and optimization of the steering trajectory while drilling. In the technology of optimization of the steering trajectory while drilling, a trajectory control calculation model based on the average angle technique was established for the first time. Additionally, a sectional control chart for marker layers and well inclination under different deflecting constraints was established. These methods have solved the problems of large error in target prediction and poor trajectory control effects by using the equal thickness method alone. The findings from this study can significantly enhance target prediction and trajectory control accuracy in complex structural areas, offering pivotal insights for the proficient development of analogous shale gas reservoirs in the future.

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