大牛地气田开发钻井和固井工艺技术优化研究

大牛地气田位于鄂尔多斯盆地伊陕斜坡北部东段，是一个平面上叠合连片的复式大型气田。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，以往的钻井固井技术不能适应气田开发的需要。因此，对现有的钻井固井工艺技术进行优化研究，形成一套快速、优质、低成本的钻井固井工艺技术，降低了气田开发成本，提高了大牛地气田开发的经济效益。

Techniques Research of Drilling and Cementing to Exploit Daniudi Gas Field

Daniudi gas field locates in the east segment of northern slope of Yishan in the basin of Ordos.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 and low-production.The geologic strata with many complicated circumstance is rather uneven and difficult to drill.The former techniques of drilling and cementing(can't) adapt to the demand of the exploitation of the gas field.Therefore,we researched the existing techniques of drilling and cementing and excogitated a set of techniques of drilling and cementing with fast speed,high-quality and low cost.Development cost of the gas field is lowered and economic profit is raised.