深井长裸眼复杂压力层系堵漏技术研究与应用

准噶尔盆地深井钻井大多采用长裸眼钻井技术，在同一裸眼井段，特别是在长裸眼段，经常存在喷漏同层、下喷上漏、上喷下漏、高渗透性漏失以及多压力层系性漏失等情况，给施工带来极大难度，增加了勘探开发成本。通过对该地区地质特征、地层压力系统等方面开展堵漏工艺研究，达到节约开发成本的目的。

Sealing Technical Research and Application in Complex Pressure Strata of Long Open Hole in Deep Well

Deep well drilling in Junggar basin mostly uses the long open hole drilling technology. In the same open hole, especially in the long open hole section, it usually exists spurt and leakage with the level. And the higher it spurts, the lower leaks. The higher it leaks, the lower spurts, and also has high permeable leakage as well as the leakage of multi-pressure formation, which has brought enormous difficulty to drill and design and increased exploration and development cost. This paper studies the leakage technique in order to save the development cost according to the factors as the local geology characteristics and formation pressure.