埕岛油田复杂压力层系开发井钻井液油层保护技术研究

Drilling Fluids Reservoir Protection Technology of Development Well in Chengdao Oilfield Complicated Pressure Layer System

根据埕岛油田馆陶组油藏特性和目前该区馆陶组油藏不同砂层组的地层孔隙压力系数差别较大的实际情况 ,提出了一系列有关该油田存在的储层保护新问题。针对这些问题 ,参考全国各地复杂压力层系的调整井钻井经验 ,提出了相应对策 ,并通过实验进行了验证 ,从而提出了采用

A series of new reservoir protection of this oilfield is put forward according to Guantao Group reservoir characteristics in Chengdao oilfield and bigger formation pore pressure coefficient difference in difference sand group .At the same time, aiming at these problems and consulting drilling experience of adjustment well of complicated pressure layer system in every oilfield, relevant countermeasure is put forward and validated by experiment. Then suggestion that three materials are mixed is brought forward.