具有井筒储集的变形介质双孔模型压力动态分析Pressure dynamic analysis of dual-porosity model for deformed media with borehole storage
石丽娜,同登科
SHI Li-na;TONG Deng-ke(Huadong Petroleum University;
摘要(Abstract)：
为更好地研究碳酸盐油藏和低渗流油藏的渗流问题, 引入渗透率模数, 考虑应力敏感地层中介质的变形, 介质的双孔隙度特征, 同时考虑井筒储集的影响, 建立了新的数学模型。渗透率依赖于孔隙压力变化的流动方程是强非线性的, 模型采用Douglas—Jones预估校正法获得了无限大地层及有界封闭地层的数值解, 形成了新的理论图版, 利用这些图版对模型中的有关参数进行了敏感性分析。
In order to conduct much better study on the filtration problem in carbonate and low-percolation oil reservoirs,permeability modulus is quoted and a new mathematical model is established with consideration of the media deformation in stress-sensitive formation,dual porosity features of the media and influence of borehole storage.The flow equation of permeability depended on the change of pore pressure is strong non-linear.The mathematical solution of the model in infinite large formation and boundary sealed formation is obtained by means of Douglas-Jones predicting and correlating method, therefore a new theoretical pattern board is formed and with help of the above-mentioned board, the sensitivity analysis of model-concerned parameters is conducted.
关键词(KeyWords)：
双孔;变形;井筒储集;双重介质;数值解
dual porosity;deformation;borehole storage;dual porosity media;numerical solution
基金项目(Foundation): 国家“973”项目资助课题 (2002CB211708) ;; 山东省自然科学基金资助项目 (Y2003F01)。
作者(Authors):
石丽娜,同登科
SHI Li-na;TONG Deng-ke(Huadong Petroleum University;
参考文献(References)：
- [1]PETRSAJR Pressuretransientresponseinstress sensitiveformation[R]SPE15115,1986
- [2]KIKANIJ,PETROSAJR Perturbationanalysisofstress sensitiveres ervoir[J]SocPetEngFormEval,1991,6(3):379386
- [3]YEUNGK Anapproximateanalyticalstudyofacquiferswithpressure sensitiveformationpermeability[J]WaterResourceResearch,1993,29(10):34953501
- [4]同登科应力敏感于渗透率的分形油气藏渗流问题的近似解析解的研究[J]石油勘探与开发,1999,26(3):5357
- [5]同登科,李 萍压力依赖于地层渗透率的分形介质油藏的数值研究[J]西安石油学院学报,2001,16(2):2124
- [6]苏玉亮变形介质油藏开发特征[J]石油学报,2000,21(2):5155