龔安 姚鑫杰


摘要:針對油臧體積壓裂水平井生產過程中滲吸對采油的影響,設計實現了一種基于Windows平臺下的油藏體積壓裂下產能系統。基于分形理論和半解析方法,建立了考慮滲吸的多元線性分形模型,采用Visual Studio與MA'rLAB混合編程和多線程技術,實現了項目管理、模型計算、分析對比可視化等功能,并提升了數據處理速度。為了提高系統的穩定性,減少資源開銷,設計了系統異常檢測,采用線程池和異步操作。實踐表明,油藏體積壓裂下產能系統作為現代油田開發技術的科學決策工具,在工程和研究中起著重要的作用。
關鍵詞:油藏;體積壓裂;分形;滲吸;多線程;混合編程
中圖分類號:TP391.9 文獻標識碼:A
文章編號:1009-3044(2020)20-0009-04
Design and Implementation of Reservoir Productivity Evaluation System
GONG An. YAO Xin-jie
(College of Computer Science and Technology, China University of Petroleum (East China), Qingda0 2665 80. China)
Abstract: Aiming at the effect of' imhibition on oil recovery during the production of horizontal wells in reservoir volume fracturing,a productivity system under reservoir volume fracturing based on Windc}ws platform is designed and implemented. Based on fractaltheory and semi-analytical method, a multivariate linear fractal model considering imbibition was established. Using Visual Studioand MATLAB mixed programming and multi-threading technology, it realized the functions of project management, model calcula-tion, analysis and comparison visualization and improved data processing speed. In order to improve the stability of the system andreduce resource overhead, the system anomaly detection is designed, using thread pool and asynchronous operation. Practice showsthat the productivity system under reservoir volume fracturing, as a scientific decision tool for modern oilfield development technol-ogy, plays an important role in engineering and research.
Key words: reservoir: volume fracturing; fractal; multithreading; hybrid programming
1背景
隨著國內外學者們不斷深入研究,在油藏體積壓裂水平井中建立體積壓裂水平井多區復合流動模型逐漸發展完善,但是目前的多區復合流動模型并不能準確地描述油藏儲層體積壓裂水平井滲流特征。因此迫切需要提出一個結合油藏儲層特征和體積壓裂縫網結構的水平井流動模型來描述流體滲流規律[1]。為了更好地描述油藏體積壓裂水平井生產過程中滲吸對采油的影響,利用油藏工程和數值模擬方法,考慮滲吸作用下,對油藏縫網條件下產能計算模型進行研究。擬基于多區耦合的壓裂水平井產能計算流動模型,重新劃分不同流動特征的滲流區域,考慮引入竄流修正項對滲吸區域進行精細刻畫,建立綜合考慮啟動壓力梯度以及滲吸機制的多區耦合滲流數學模型[2],對不同因素影響滲吸的機理進行分析,對不同滲吸機制作用下的壓裂水平井產量變化規律及產能計算進行數學建模與軟件研制。……