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桑合地区的油气勘探始于 1985年 ,完钻的白参 1井获得良好油气显示 ,未见油流 ,1996年查 2、查 3井突破工业油流关 ,并上报探明石油地质储量 75× 10 4 t ,基本打开了该区油气勘探的局面 ,但仍未找到油气富集 ;直到 2 0 0 3年结合查 5老井试油 ,运用新技术和新方法 ,对桑合构造的地层、构造、沉积储层及圈闭的含油气性进行了深入的研究 ,在认识上取得突破性进展 ,弄清了油气富集因素 ,找到了油气富集块 ,部署评价井 6口 ,一举探明石油地质储量 5 0 0×10 4 t以上。实现了该凹陷多年来油气勘探的重大突破。
Oil and gas exploration in the Sanghe area began in 1985 with a well-developed oil and gas showed in Bai-sen-1 well. No oil flow was found. In 1996, the oil well was found to have crossed the industrial oil flow limit and a proven oil geological reserve of 75 × 10 4 t, basically open the area of oil and gas exploration, but still no oil and gas accumulation; combined with the old wells in 2005 to check the oil, the use of new technologies and new methods, the formation of the Sanghe strata , Structural, reservoir and trap oil and gas traps, made breakthroughs in understanding, clarified the factors of oil and gas enrichment, found oil and gas enrichment blocks, deployed appraisal wells 6, in one fell swoop Ming oil geological reserves 500 × 104 t above. Achieved a major breakthrough in oil and gas exploration over the years in this depression.