Safe drilling technology for ultra-deep gas wells with complex pressure systems using managed pressure and gas-venting density reduction

Safe drilling technology for ultra-deep gas wells with complex pressure systems using managed pressure and gas-venting density reduction

Marine carbonate oil and gas resources in the western Sichuan region of the Sichuan Basin are buried at depths exceeding 7 000 meters. Vertically, multiple hydrocarbon reservoirs exist, resulting in complex pressure systems where the coexistence of influx and loss may occur within the same open hole...

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Bibliographic Details
Main Author: LI Tao, YANG Zhe, CHI Chongrong, NIE Zunhao, XU Zhikai, CHEN Xun, WANG Fei
Format: Article
Language:zho
Published: Editorial Department of Petroleum Reservoir Evaluation and Development 2025-06-01
Series:Youqicang pingjia yu kaifa
Subjects:
|ultra-deep gas well|safe mud weight window|gas-venting density reduction|high pressure and low permeability|gas influx rate|wellbore structure
Online Access:https://red.magtech.org.cn/fileup/2095-1426/PDF/1748403120529-201129834.pdf
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