大牛地气田开发井钻井工艺技术研究与应用

RESEARCH AND APPLICATION OF DRILLING TECHNOLOGY FOR DEVELOPMENT WELL IN DANIUDI GASFIELD

大牛地气田储层特点是低压低渗低产,地层非均质性强、复杂情况多、地层可钻性差,以往的钻井工艺技术钻井周期长、机械钻速低不能适应气田开发的需要,因此,对钻井工艺技术进行研究,形成了一套快速、优质、低成本的钻井工艺技术,降低了气田开发成本、缩短了钻井周期、提高机械钻速和开发的经济效益。

The Daniudi gas field locates the east segment of northern slope of Yishan in the basin of ERDOS. It is a large compound gas field folding to connect into sheet on a flat surface. The characteristics of the reservoir is low-pressure,low permeability,low production. The geologic strata with many complicated circumstance is rather uneven and difficult to drill. The former drilling techniques can't adapt the demand of the gas field exploitation. Through the research on the existing drilling techniques, a set of drilling technology with fast speed, high-quality and low cost is formed. The technique can lower development cost, shorten drilling cycle, enhance penetration rate and raise economic profit of the gas field.