DEPOSITIONAL ENVIRONMENT AND PETROLEUM GEOLOGY OF THE PERMIAN IN GAIZE AREA, TIBET
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摘要: 由古生界和太古生界组成的古潜山是胜利油田近期重要的油气发现场所,其中储层评价及储集空间的预测是这类油藏研究的难题。作者对渤海发现的埕北30潜山的储层研究取得了有益的进展。首先阐明了该潜山的形成和演化特征;然后开发利用“潜山储层综合评价方法”对潜山内部碳酸盐岩和变质岩的次生溶洞、孔隙和构造裂缝进行了详细描述和预测。并且总结出潜山储层双重介质的储集特性,这对同类油气藏研究具有指导意义。Abstract: Many buried hill reserviors in the paleozoic and Archaean were discovered in the Shengli Oilfield in recent years. It showed quite difficult for prediction of distribution of storage space and assessment of this kinds of reserviors. A fruitful progress was made during the reservior study on the buried hill namely Chengbei-30. The forming and evolution of the hill was illuminated firstly, then the detail description and distribution prediction of the secondary disoluted vugs, porosity and fractures of carbonates and metamorphite within the buried hill were made by using "integrated evaluation methoa for buried hill reserviors". Furthermore, the reservior features of dual-porosity media were summarized, which may provide some useful guidances for the study of the same reserviors.
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