塔中东部奥陶系缝洞型油气藏见水类型分析  

Characteristics of Water Breakthrough in Ordovician Fractured Vuggy Type Reservoirs in the Eastern Tazhong Area

作　　者：程汉列 王连山 王建民[1] 

机构地区：[1]西安石油大学地球科学与工程学院,西安710065 [2]恒泰艾普石油天然气技术服务股份有限公司,新疆库尔勒841000

出　　处：《重庆科技学院学报（自然科学版）》2016年第6期45-48,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"塔里木盆地大型碳酸盐岩油气田开发示范工程"(2011ZX05049)

摘　　要：塔中东部奥陶系缝洞型油气藏以溶洞、裂缝为主要储运空间,储层类型有洞穴型、裂缝孔洞型和孔洞型,储层非均质性较强,流体分布关系复杂。对塔中东部目前投产的51口见水井进行分析,将其见水特征分为间歇降低型、基本平稳型、台阶变化型和暴性水淹型。根据见水类型特征曲线,认为间歇降低型见水对产油量的影响较小,而暴性水淹型会使水体短时间内淹没井筒,对产油量的影响极大。该区域处于中含水阶段。Fractured vuggy type reservoirs in the eastern Tazhong area feature with the main reservoir spaces of cave and crack, and three types of reservoir can be subdivided into： cave - type, fractured - cavernous type, pore - caven. Taking 51 oil wells in the eastern Tazhong area as examples in this paper, the water breakthrough character- istics include four types： fluctuating curve, steady increasing curve, stepped increasing curve and rapidly increas- ing curve. On the basis of water breakthrough curve, rapidly increasing curve has a bigger effect than the others, because the water will be flooding borehole in a short time, while the fluctuating curve has the least impact. This indicates this area is in the middle of water breakthrough period.

关 键 词：缝洞型油藏 见水类型 生产特征 含水率 地层水赋存 

分 类 号：TE33[石油与天然气工程—油气田开发工程]