摘要
塔河油田S48缝洞单元试注水取得成功后,单元注水在塔河油田逐渐推广和应用,目前多井缝洞单元注水开发已成为塔河油田缝洞型油藏提高采收率的一项关键技术,但由于塔河碳酸盐岩缝洞型油藏极其复杂,非均质性极强,对缝洞结构认识难度大。近年来在大力开展单元注水开发后,开始呈现逐渐变差的趋势。针对塔河油田注水开发上的需求,加强了对缝洞储集体分类精细刻画研究,通过室内数值模拟研究并结合现场实践,优化不同储集的注水模式及注采参数,取得了较好的增油效果,并初步建立了缝洞型油藏单元注采参数体系,对塔河缝洞型油藏的稳产和采收率的提高起到了积极的作用。
Water flooding in fracture - cavity units has been made and applied since test results of S48 had succeed in the Tahe oilfield. Now, it＇ s a key technology that water flooding of multi - well fracture - cavity units becomes to enhance oil recovery in fractured - vuggy of carbonate reservoirs in the Tahe oilfield. However, its effects trend worse gradually, due to the complication of carbonate fractured - vuggy reservoir and strong heterogeneity, especially cognition of intricate fracture - cavity. Water flooding the Tahe Oilfield development needs by strengthening the in fracture - cavity units has obtained good effect in view of research on classification of fracture -cavity, combined numerical simulation with field practice, primarily establishing and optimizing the water flooding pattern and injection - production parameters of different reservoir in Tahe, which has played a positive role in type of Tahe fracture - cavity reservoir.
出处
《重庆科技学院学报（自然科学版）》
CAS
2014年第3期44-47,52,共5页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
"973"国家重点基础研究发展计划"碳酸盐岩缝洞型油藏注水开发研究"(2011CB201005)
关键词
缝洞型油藏
多井缝洞单元
注水模式
注采参数
fractured -vuggy reservoir
multi -well fracture -cavity units
injection mode
injection parameters
