石油实验地质2024，Vol.46Issue(1)：1-10,10.DOI:10.11781/sysydz202401001
深水中大型气田滚动勘探技术体系与成效
Technical system and achievements of rolling exploration in large and medium-sized deep-water gas fields:
摘要
Abstract
A complete technical system of gas field rolling exploration such as target search,evaluation and drilling was introduced to promote the development of the deep-water marginal gas field A in the central canyon of the Qiongdongnan Basin.In addition to the traditional target search technology of oil and gas potential in the zone,a target search technology of evaluation process was proposed for the marginal gas field A.A total of five potential oil and gas blocks were searched,and the structure A4 was selected for oil and gas target evaluation.The main controlling factors of hydrocarbon accumulation in the structure A4 were studied from two aspects:trap interpreta-tion and implementation,and trap hydrocarbon detection.The predicted dominant gas-bearing areas in the central part of structure A4 have favorable gas-bearing information characteristics such as strong amplitude attributes,low density,low velocity,low P-wave impedance,and low P-wave and S-wave velocity ratios.They were generally classified as class Ⅲ AVO anomaly,which can upgrade the HL＿0 gas group to control natural gas geological reserves.The rolling exploration well A4-1 was drilled,encountering a gas layer of over 20 m in the Huangliu Formation,and a suspicious gas layer of nearly 10 m in the second member of Yinggehai Formation.The proven geological reserves of natural gas were nearly 3 billion cubic meters,and the drilling effect was good.The appli-cation of rolling exploration research in the deep-water marginal gas field A not only effectively promotes the sub-sequent rolling exploration activities of the marginal gas field A,but also confirms that rolling exploration is also applicable to deep-water oil and gas exploration.关键词
油气滚动勘探/勘探成熟区/深水区/中央峡谷/琼东南盆地/南海北部Key words
rolling exploration of oil and gas/maturing exploratory area/deep-water area/central canyon/Qiongdongnan Basin/northern South China Sea分类
能源科技引用本文复制引用
陈奎,胡德胜,宋瑞有,龚宇,肖大志,黄安敏,朱玉双..深水中大型气田滚动勘探技术体系与成效[J].石油实验地质,2024,46(1):1-10,10.基金项目
中国海洋石油有限公司科技项目"南海深水盆地油气运聚成藏分析与突破方向"(KJGG2022-0103)资助. （KJGG2022-0103）
