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川中大安寨油藏属特低渗油藏，渗透率为０．１×１０－３μｍ２，但细微裂缝发育。多年来靠消耗天然能量开采，采出程度仅为３％～５％。在长期的开发实践中，逐步积累经验，采用多种技术措施，提高开发水平。开展三维油藏描述，加深对油层的认识，使钻井成功率由６０％提高到８２．５％；用暂堵酸酸化技术解决了严重非均质和高渗透裂缝地区的酸化问题，用乳化酸酸化技术配合深穿透射孔在秋１井获日产５．５ｔ的高产，使秋林、聚龙两地区成为上产接替区块，一系列酸化技术使酸化成功率提高１０个百分点；采用解堵、热洗技术，施工２００多井次，累计增油１６×１０４ｔ，成为另一个稳产主要技术；采用注水、小泵深抽、开窗侧钻等技术为老区稳产提供了重要手段。其中注水使柳树地区的采收率提高近３个百分点。从１９９４年以来，由于应用综合技术措施，使原油年产量从１０×１０４ｔ增加到１９９６年的２０×１０４ｔ，实现了重建一个川中油矿的目标，为特低渗、消耗式开采油藏的开发提供了经验。
The Da’anzhai oil reservoir in central Sichuan Basin is a special low permeability reservoir with a permeability of 0.1 × 10-3μm2 but with fine cracks. Over the years by consuming natural energy extraction, mining degree of only 3% to 5%. In the long-term development practice, gradually accumulate experience, using a variety of technical measures to improve the level of development. Carry out 3D reservoir description to deepen understanding of the reservoir and increase the drilling success rate from 60% to 82.5%. Temporary acid blocking technology has solved the problem of acidification in severely heterogeneous and high permeability fractured areas, Acidification technology with deep penetrating perforation obtained a yield of 5.5t per day in Qiu 1 well, making QiuLin and JuLong two districts become the successor blocks for production, and a series of acidification technologies increased the acidification success rate by 10% Blocking and heat washing technologies. More than 200 wells have been constructed and the total oil production has increased by 16 × 104t. This has become another major technology for stable production. The technologies of water injection, deep pumping of small pumps and side-drilled windows provide an important means of stable production in old areas. Water injection increased the oil recovery in willow area by nearly 3%. Since 1994, due to the application of comprehensive technical measures, the annual output of crude oil has been increased from 10 × 104t to 20 × 104t in 1996, achieving the goal of rebuilding a Sichuan-based oil mine and providing for the development of ultra-low permeability and consumptive mining reservoirs Experience.