摘要
低渗致密储集层非均质性强,各向异性非常明显,储层渗透能力低,气井的自然产能极低。要较好的开发该类气藏,必须对其实施人工压裂。因此,以苏里格气田某区块为例,主要以压后累计产能为标准,应用FracproPT软件模拟水平井的水平段长度,压裂段数以及裂缝间距的变化对产能的影响来判断压裂效果的优劣;同时应用Eclipse油藏数值模拟软件对体积压裂缝网技术与常规分段压裂技术的效果进行探讨,旨在为今后的压裂开发低渗致密气藏提供一定的技术支持。
Dense layer of low permeability reservoir has strong heterogeneity,obvious anisotropy and low reservoirs permeability with very low natural gas production.In order to develop such gas reservoirs better,artificial fracturing should be implemented in the reservoirs.Therefore,evaluation of the fracturing effect starts to get much more attention,the accuracy of the evaluation results is theimportant guarantee for optimization of fracture parameters and capacity forecasts after fracturing,and reducing fracturing costs and increasing oil and gas recovery.The study takes the cumulative oil production rate after fracturing as standard,uses Software FracproPT to simulate horizontal length of horizontal wells,the effect of number of fracturing segments and the changes in crack spacing to judge the merits of fracturing effect.Meanwhile by using Eclipse reservoir simulation software,the paper discusses the results on volume fracturing technology and conventional staged fracturing technology to provide technical support for the future fracturing development of tight gas reservoirs with low permeability.
出处
《长江大学学报（自科版）（上旬）》
CAS
2014年第11期151-153,9,共5页
JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG
关键词
低渗致密气藏
压裂效果评价
数值模拟
苏里格气田
tight gas reservoirs with low permeability
fracturing evaluation
numerical simulation
Sulige Gas Field
