FEWD在胜利油田难动用剩余储量开发中的应用

Successful Applications of FEWD in Development of Difficult-Getting-Remained Reserves in Shengli Oilfield

胜利油田老油区难动用剩余储量主要以特稠、超稠、薄层、断块、边/底水、油水同层等油藏为主,采用常规水平井钻井技术难以有效开发,而FEWD(地质评价无线随钻测量仪)因具有独特的地层评价功能,配合水平井钻井技术,可以实现难动用储量的有效开发。介绍了胜利油田老油区难动用剩余油藏的概况、开发难点,FEWD仪器的组成及主要功能,以具有代表性的水平井为例,重点介绍了FEWD在利用水平井技术开发薄油藏、边/底水油藏、断块复杂剩余油藏、边远剩余油藏等的应用情况。FEWD解决了老油区难动用剩余储量开采的难题,不但保证了入靶的准确度,而且极大地提高了水平段油层的穿透率,提高了经济效益,也推动了常规水平井钻井技术的发展与提高。

Such problems as heavy oil, thin bed, faults and edge water, etc, are involved in developing the difficulty-getting-remained reserves in developed areas in Shengli Oilfield. While developing such blocks, the usual horizontal drilling technology cannot get good effects. And FEWD ( Formation Evaluation While Drilling ) accompanied with horizontal drilling techniques is able to be used to exploit such reservoirs effectively. This paper presents the general situations of the remained reservoirs, developing difficulties, design and principal functions of this instrument, and its field applications to sample wells. It solves the problems of difficult-getting-remained reserves in developed oilfields, including hitting target precisely, increasing permeability in horizontal segments, reducing cost and promoting horizontal drilling technologies.