摘要
在LM产量递减自动拟合方法的基础上,结合回归分析建立了异常高压气藏气井的产量递减自动拟合数学模型。运用该方法不需要进行图版拟合就可以确定出异常高压气藏的渗透率、孔隙度、有效厚度和地质储量。为了改善模型的预测精度,采用了去掉不稳定生产数据后,再用自动拟合方法来反求地层参数。为了便于模型在实际应用中得到正确的结果,提出了检验计算结果正确与否的检验标准。
The mathematic model of automatic matching of gas-well production decline for abnormally pressured gas reservoir is developed, based on LM＇s automatic matching of production decline, combined with the regression analysis. This model can be used to determine the permeability, porosity, net pay thickness and OGIP without chart matching. In order to improve the prediction precision, a way of acquiring the formation parameters is adopted by firstly removing the unsteady production data followed by the automatic matching technique. Also, the standard for verifying the calculated results is proposed for application of this model.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2006年第5期578-580,共3页
Xinjiang Petroleum Geology
基金
高校优秀青年教师科研奖励计划基金(TRAPOYT)
教育部博士点基金(20040615004)
四川省学术和技术带头人培养资金(2200320)联合资助
关键词
产量递减
拟合
异常高压
拟稳态
production decline
matching
abnormal pressure
pseudo-steady state
