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塔里木油田奥陶系碳酸盐岩油藏的压裂技术难点是:①压裂设计的针对性不强;②滤失严重、滤失系数难以预测;③裂缝形态及其延伸规律复杂;④缝高不易控制;⑤加砂难度大,易形成砂堵;⑥高温深井。认为应采取的技术措施是:①进行压前储层精细评价;②应用测试压裂及解释技术;③降滤防堵技术;④综合控制裂缝高度。研究的目的是为类似现场作业提供参考。
The fracturing technical difficulties of Ordovician carbonate reservoirs in the Tarim Oilfield are: (1) the pertinence of fracturing design is not strong; (2) the filtration loss is serious and the filtration coefficient is difficult to predict; (3) the fracture morphology and its extension are complicated; High difficult to control; ⑤ sand difficult, easy to form sand blocking; ⑥ high temperature deep well. The technical measures that should be taken are: (1) to conduct pre-pressure reservoir fine evaluation; (2) to apply the test fracturing and interpretation technology; (3) to filter the plugging prevention technology; (4) to comprehensively control the fracture height. The purpose of the study is to provide a reference for similar field work.