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在油气勘探过程中,圈闭含油气性评价越来越受到重视。评价圈闭含油气性的主要参数为圈闭的充满度和含油饱和度。圈闭含油气性评价隶属于圈闭评价范畴,其研究内容主要包括圈闭地质特征分析、圈闭含油气性主控因素分析、圈闭成藏机理研究及圈闭综合评价4个方面。对于不同盆地、凹陷及不同构造带上的不同圈闭类型,因其勘探程度不同,圈闭含油气性的评价方法也存在差异性,多种评价方法的应用是现今圈闭含油气性评价的客观现实。圈闭评价方法的局限性,给评价圈闭含油气性带来了较大风险,其评价技术还有待深入研究。目前随着隐蔽油气藏勘探的深入,在中国东部形成了一套针对岩性圈闭含油气性评价的方法,并取得了较好的勘探效果,对进一步研究圈闭含油气性具有一定的借鉴意义。
In the process of oil and gas exploration, the evaluation of trap oil and gas is paid more and more attention. The main parameters for evaluating trap oil and gas are trap fullness and oil saturation. The evaluation of trapped petroleum gas belongs to the category of trapping evaluation. The main contents of this study include trapping geological characteristics analysis, main controlling factors of trap petroleum and gas, trapping accumulation mechanism and trapping comprehensive evaluation. For different types of traps in different basins, sags and different tectonic belts, there are differences in the evaluation methods for trapping hydrocarbon in oil and gas due to different exploration levels. The application of various evaluation methods is the evaluation of the current trap oil and gas Objective reality. The limitation of trapping evaluation method brings great risk to the evaluation of trap oil and gas, and its evaluation technique needs to be further studied. At present, with the exploration of subtle oil and gas reservoirs, a set of methods to evaluate the hydrocarbon-bearing property of lithologic traps has been formed in eastern China and a good exploration result has been obtained, which is of great help to further study the hydrocarbon-bearing traps significance.