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塔里木盆地经多轮地震攻关取得了勘探大突破,但复杂油气藏的勘探开发所面临的仍然是世界级难题。复杂高陡构造勘探的关键问题是低信噪比和复杂波场偏移成像。大深度碳酸盐岩勘探开发需要解决的关键问题是:进一步提高缝洞体系成像精度和裂缝发育方向及密度刻画精度。东方地球物理公司塔里木物探处从满足叠前偏移的设计要求出发,针对复杂高陡构造、大深度碳酸盐岩油气藏进行了宽方位三维、全方位三维及拟全三维地震勘探技术攻关,并取得了良好的成果,打开了塔里木盆地复杂油气藏勘探的新局面。
The Tarim Basin made major exploration breakthroughs after many rounds of earthquakes, but the exploration and development of complex reservoirs is still a world-class challenge. The key issues in the exploration of complex high-steep structures are low S / N ratios and complex wavefield migration imaging. The key issues that need to be solved in the exploration and development of deep-depth carbonate rocks are: to further improve the imaging accuracy of fractured-cave systems and the direction and density characterization of fractures. Based on the design requirements of prestack migration, the geophysical prospecting department of Orient Geophysical Company (Tarim Geophysical Department) conducted a wide azimuth three-dimensional, omni-directional three-dimensional and quasi-full three-dimensional seismic exploration technology for complex high-steep structures. And achieved good results, opening up a new situation in the exploration of complex reservoirs in the Tarim Basin.