OIL AND GAS EXPLORATION IN DEEP WATER AREA OF GULF OF MEXICO
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摘要: 墨西哥湾深水勘探区带是近年深水勘探活动最活跃的地区之一,通过对其石油地质条件以及勘探特点的综合分析,认为其具有优越的石油地质条件,其勘探研究具有4个特点:①地震技术革新极大推进了该区的勘探研究;②盐岩活动控制圈闭和油气藏的形成;③墨西哥湾深水区圈闭勘探呈明显的分带性;④圈闭落实和储层发育程度是主要勘探难点。并指出盐下圈闭落实和储层预测是制约该盆地勘探成功率的两大关键问题,而盐下地震成像、古盐构造恢复和古沉积水道的预测是解决这两大关键问题的主要手段。Abstract: The deep water area of the Gulf of Mexico Basin (DWGoM) is one of the most active areas in the world for oil and gas exploration. Integrated analysis of petroleum geologic conditions and exploration status suggests that the basin is excellent for petroleum accumulation, and there are four characteristics in terms of exploration. ① there are complex geologic settings, and seismic data imaging is essential for exploration; ② salt movement is the key to trap formation and oil accumulation; ③ the distribution of exploration plays is characterized by obvious zonation; ④ the main risks of exploration in this area depend upon the reliability of trap and the availability of reservoirs. Data also indicate that subsalt trap evaluation and reservoir prediction are the two major problems affecting the outcome of exploration in this basin, and the main methods to solve the problems are the improvement of subsalt seismic imaging, restoration of salt palaeostructure and prediction of sedimentary palaeochannels.
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Key words:
- Gulf of Mexico (GoM) /
- deep water /
- exploration /
- salt structure
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