垂直裂缝气井生产动态预测及参数识别

Dynamic Production Prediction and Parameter Identification for Gas Well With Vertical Fracture

1.
Department of Computer Science, Southwest Petroleum Institute, Nanchong, Sichuan 637001, P R China;
2.
Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang, Hebei 065007, P R China;
3.
Department of Post Graduate, Southwest Petroleum Institute, Nanchong, Sichuan 637001, P R China

摘要: 为了摆脱分析解释水力压裂裂缝参数时选择图版的繁复工作和克服人为的误差,在引入非达西因子的基础上,考虑裂缝导流能力在生产过程中的变化,提出了垂直裂缝气井中真实气体在地层-裂缝系统中非达西渗流的数学模型和生产动态预测模型,建立了识别垂直裂缝气井水力裂缝参数的生产历史自动拟合模型,并给出了数值解法,为认识和了解气层、分析和评估气井压裂施工质量,提供了准确可靠的方法。
- 气井 /
- 压裂 /
- 非达西渗流 /
- 裂缝导流能力 /
- 参数识别 /
- 自动拟合
Abstract: In order to devoid the hard work and factitious error in selecting charts while analyzing and interpreting hydraulic fracturing fracture parameters,on the basis of the non-Darcy flow factor,this paper put out the non-Darcy flow mathematical model of real gas in the formation and fracture,established the prodution history automatic matching model to identify fracture parameters,and offered the numerical solutions of those models,which took the variation of fracture conductivity in production process.These results offered a precise and reliable method to understand formation,analyze and evaluate the fracturing treatment quality of gas well.
- gas well /
- fracturing /
- non-Darcy flow in porous media /
- fracture conductivity /
- parameter identification /
- automatic matching

[1]	郭大立,纪禄军,赵金洲,等. 煤层压裂裂缝三维延伸模拟及产量预测研究[J]. 应用数学和力学,2001,22(4):337-344.
[2]	郭大立,陈汶斌,赵金洲. 压裂后压力递减分析新方法[J]. 石油钻采工艺,1997,19(4):70-73.
[3]	张平,郭大立,陈汶斌,等. 压裂后压力测试资料分析解释技术[J]. 天然气工业,1997,17(5):55-57.
[4]	Agawal R G, Carter R D, Pollock C B. Evaluation and performance prediction of low-permeability gas wells stimulated by massive hydraulic fracturing[J]. J Pet Tech,1979,31(3):362-372.
[5]	Gringarten A C, Ramey H J J, Raghavan R. Applied pressure analysis for fractured wells[J]. J Pet Tech,1975,27(7):887-892.
[6]	Cinco H, Samaniego F, Dominguez N. Transient pressure behavior for a well with a finite-conductivity vertical fracture[J]. Soc Pet Eng J,1978,18(8):253-264.
[7]	Cinco H, Samaniego F. Transient pressure analysis for fractured wells[J]. J Pet Tech,1981,33(9):1749-1766.
[8]	刘慈群. 在双重孔隙介质中有限导流垂直裂缝井的非牛顿流体试井分析方法[J]. 石油学报,1990,11(4):61-67.
[9]	陈建新,王鸿勋. 识别水力裂缝参数的曲线自动拟合法[J]. 石油学报,1992,13(1):69-78.
[10]	袁亚湘. 非线性规划数值方法[M]. 上海:上海科学技术出版社,1993.