渤海大厚层油藏剩余油分布规律及挖潜实践  

Remaining Oil Distribution and Digging Potential in Practice of the Thick Oil Reservoir in Bohai

作　　者：刘玉娟 李红英 郑彬 王立垒 胡端男 

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《重庆科技学院学报（自然科学版）》2017年第2期57-60,91,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"海上油田丛式井网整体加密及综合调整油藏工程技术应用研究"(2011ZX05024-002)

摘　　要：针对X油田纵向及平面水淹不均、剩余油分布规律复杂等问题,从层内、层间及平面等角度进行研究。研究认为,层内水淹受韵律性及重力共同作用,层间水淹受层间夹层影响,平面水淹规律受沉积相带控制。纵向上剩余油分布于各小层顶部,平面上主河道侧向、断层附近、潜山井区等剩余油富集。采取油井转注实现井网重塑、增加新井完善注采井网等针对性挖潜策略,在实践中取得了显著效果。X oilfield has development difficulties,such as unequal vertical and horizontal flooding,complex remaining oil distribution and so on,so this paper aims to research this oilfield from internal layer,interlayer and plane3 aspects. The results show that internal layer flooding was affected by rhythmic and gravitational interaction; interlayer water-flooding was influenced by interlayer intercalation; horizontal water flooding was controlled by sedimentary facies belt. Vertically residual oil distributes on top of each layer,horizontally abounded in main channel,near fault and buried hill. The digging potential strategies include transferring production well into injection well to achieve well pattern reconstruction,and drilling new wells to improve injection-production well pattern,through which good effect was achieved.

关 键 词：大厚层 水淹规律 剩余油分布 挖潜 

分 类 号：TE53[石油与天然气工程—油气田开发工程]