二连工区达5井取心技术探索

达5井位于内蒙古二连盆地达来苏木区块,主要取心层位在腾格尔一段及阿尔善组的上部,地层倾角大,岩性变化大,高研磨性地层与易碎地层互层严重,取心困难。文章分析了达5井储层取心技术的难点,有针对性地提出了取心技术措施,总结了复杂地层取心技术特点,对同类取心工作有一定的借鉴作用。

Coring Technology of Da-5 Well in Erlian Industrial Area

Da-5 well is situated in Dalaisumu Block of Erlian Basin in Inner Mongolia, with the major coting layer in part of Tenger and the upper part of Arxan section, which makes it difficult to core for the serious interbedding of high abrasive and friable strata, steep dip and lithilogical change. After analyzing the difficulties, the paper specifically proposes coring measures and strict rules to ensure the smooth coring and sums up the characteristics of coring in complex strata, which may be of help for the work of the same kind.