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近几年的勘探实践表明葡萄花构造南部的敖南油田黑帝庙油层具有良好的勘探开发前景。该区黑帝庙油层砂体研究程度较低,陆相地层相变快,导致砂体横向变化大,难以对砂体进行精细对比。以敖南油田茂701区块为研究对象,在砂组划分的基础上,通过地震反演约束,对黑帝庙油层砂体进行了精细对比研究。地震反演结果和实钻成果表明,纵向上黑一段砂体较发育,纵向砂体层数多且相互叠置、累计厚度大,横向上可以追踪对比;黑二段砂体基本不发育。这为准确预测有利储集区带,进而指导敖南油田黑帝庙油层的油气勘探提供了重要的地质基础。
Exploration practice in recent years shows that the Heidimiao reservoir in the Aonang oilfield in the southern part of the Putaohua tectonicum has good exploration and development prospects. The study on the Heitanmiao reservoir sandbody in this area is relatively low, and the facies strata of the terrestrial phase rapidly change, resulting in the large lateral variation of the sandbody, making it difficult to make a detailed comparison of the sandbody. Taking the block of Mao 701 in AoNan Oilfield as the research object, on the basis of the sand group division, the sandstone body of Heidimian reservoir has been studied in detail through the seismic inversion constraints. The results of seismic inversion and real drilling show that sand bodies in the upper part of the black belt are well developed in the longitudinal direction, and the sand bodies in the longitudinal direction are many and overlap each other. The cumulative thickness is large and can be tracked horizontally. This provides an important geological basis for accurately predicting the favorable reservoir zone and further guiding the exploration of oil and gas in the Heidimu Reservoir in Ao Nan Oilfield.