中原油田开发后期定向钻井新工艺

New Directional Drilling Techniques for Middle and Late Periods in Zhongyuan Oilfield

阐述了油田开发中后期定向井从井位布置、施工设计等各方面的新特点新要求。根据各区块的不同情况，总结出了一套适合新情况下的定向钻井工艺，包括井位优选技术、深井井眼控制技术、造斜点和井身剖面的优选、泥浆工艺等一系列配套工艺技术。1995年在7个区块完成13口定向井，全部为优质井身，经济效益十分显著。

Describes the new peculiarities encountered indirectional drilling in middle and late periods includingwell-site arrangement and well designs. According to thespecific problems in specific blocks, a series ofcorresponding directional drilling techniques weresummerized, which consisted of well-site optimization,deep wellbore control, drilling fluids, optimization of KOPand borehole profile, etc. 13 directional wells were drilledin 7 blocks in 1995, and the high-quality wellbore ratiowas 100%.