长位移水平井在夹层发育的小型低渗透底水油藏中的应用  

Application of large displaced horizontal well in developing small-scale low permeability bottom water and interbed developed reservoir

作　　者：徐军[1] 孙尚如[1] 龙国清[1] 郑俊峰[1] 

机构地区：[1]河南石油勘探局勘探开发研究院

出　　处：《特种油气藏》2000年第4期27-30,共4页Special Oil & Gas Reservoirs

摘　　要：方法从地应力和裂缝、沉积相与物性特征、层内夹层分布等方面对宝浪油田宝北区块Ⅲ２油藏影响水平井开发的地质因素进行了研究。目的从地质角度论证利用水平井开发夹层发育的小型低渗透底水油藏的可行性。结果分析了在该油藏内部署水平井的有利条件，提出了布井原则，进而设计出具有鲜明特点的长位移阶梯状水平井轨迹。结论结合油藏特点，合理设计井位和水平段轨迹，利用水平井开发夹层发育的小型低渗透底水油藏是可行的，能够达到最大限度动用储量和低投资、高效益的目的。Method Geological factors affecting development results of horizontal well in lll2 reservoir, Baobei block, Baolang oilfield are studied in terms of geostress, fracture, sedimentary factes, petrophysical properties, interbed distribution and etc. Purpose To verify the feasibility of developing subject reservoirs with horizontal well from geological view. Result After having discussed the favorable conditions of drilling horizontal wells in such reservoirs, well locating principle is presented, then come up the large displaced and staged horizontal trajectory with distinctive characteristics. Conclusion it is feasible to develop small-scale low permeability bottom water reservoir containing interbeds with horizontal wells under the conditions of designing well location and horizontal trajectory as per reservoir characteristics. Moreover, maximum utilization of reserves, low capital and high return can be achieved.

关 键 词：低渗透底水油藏 夹层发育 长位移水平井 设计 宝浪油田 

分 类 号：TE348[石油与天然气工程—油气田开发工程]