摘要
针对大庆油田油层多、非均质性严重、开发时间长的特点,提出利用临界角确定受效方向的水驱厚度控制程度评价方法,克服了按固定坐标系统计受效方向数不准确的缺点。同时,针对非均质性对水驱效果的影响提出了油、水井水驱完善程度的评价方法,给出了非均质条件下的水驱控制程度计算方法。在理论分析和流线模拟的基础上,给出了多层砂岩油田水驱储量控制程度的快速评价方法。实践证明,该方法具有简便、实用等优点,能够指导水驱多层砂岩油田单层动用程度分析和增产措施制定。
In the light of the characteristics of the multiple oil layers, serious heterogeneity and long-time development, the novel evaluating method is presented and developed for the waterflooding thickness controlled degree in the affected direction by means of the critical angle, thus the shortcoming of the summarized direction inaccuracy with the help of the fixed coordinate system is overcome. At the same time, for the influence of the heterogeneity on the waterflooding effects, the evaluating methods for the waterflooding improved degree are established for the oil and water wells, and moreover the calculating approaches for the waterflooding controlled degree are presented under the condition of the heterogeneity. On the bases of the theoretical analysis and streamline simulation, the rapid evaluating method of the waterflooded-reserve controlled degree is developed for the multilayered sandstone oilfield. The practice shows that the method possesses the following advantages： easy-to-use, practical and so on, and furthermore can guide the analysis on the individual-layer developed degree of the oilfield and establishment of the simulating measures.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第5期64-67,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
国家重大科技专题项目(2011ZX05010-002
2011ZX05052)
中国石油天然气股份有限公司重大科技项目(2011E1205)
关键词
水驱
多层
砂岩油田
地质储量
控制程度
water flooding
multilayer
sandstone oilfield
geological reserve （OOIP）
controlled degree
