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沙南油田沙122井区靠近二叠系平地泉组油源,梧桐沟组三角洲前缘砂体和油源断裂发育,易于形成岩性油藏。利用三维地震资料对该区进行精细构造解释和波阻抗分频(AVF)反演,在已开发的沙丘5井区西侧斜坡区,发现、识别、描述多个P3wt12岩性圈闭,与沙丘5井区分属不同砂体。优选目标论证上钻沙122井,试获工业油流,进一步证实了该区成藏认识。沙南油田梧桐沟组滚动勘探取得新进展。
Sha 122 well in Shanan Oil Field is close to the oil source of Pingdiquan Formation in Permian. The delta front sand body and oil source fracture of Wutonggou Formation are easy to form lithologic reservoirs. Fine structure interpretation and wave impedance crossover (AVF) inversion of this area were conducted by using 3D seismic data. A number of P3wt12 lithologic traps were discovered, identified and described in the developed western slope area of Dune 5 well, Well 5 is a different sand body. Optimum target drilling drilling sand well 122, pilot industrial oil flow, and further confirmed the understanding of the area of accumulation. New Progress in Rolling Exploration of Wutonggou Formation in Shanan Oilfield.