八面河西区滩坝砂体有效开发动用研究

Research on Efficient Exploitation and Employment of Beach Bar Sandbody in Northern District of Bamianhe

滩坝砂岩性油藏是八面河油田近年来主要的产建接替阵地,但储层灰质含量重,非均质性强等因素制约开发效果。采用"AC-BL"交会图法识别滩坝砂体复杂岩性,以"COND-VLIM"交会图法识别油、水、同层及干层,制定识别岩性和流体的解释标准,掌握单砂体的储层展布规律,开展储层分类并优选出有利区,结合数值模拟结果和矿场实践经验,制定开发技术对策,落实可有效动用的地质储量。

Beach-bar sandstone reservoir has been the main substitution of production and construction for Bamianhe Oilfield in recent years.However,the factors such as high content of reservoir calcimetry and strong heterogeneity restricts its development effect.“AC-BL”cross plot method is first used to discern complex lithology of beach-bar sandbody and“COND-VLIM”cross plot method to discern water and oil in the same layer and dry layer.Interpretation criterion for recognition of lithology and fluid is formulated to master distribution rules of single sandbody reservoir and carry out reservoir classification and select out favorable area.Based on numerical simulation results and field practice,development technology countermeasures are taken to determine efficient employed geological reserves.