石油物探2017，Vol.56Issue(6)：835-840,6.DOI:10.3969/j.issn.1000-1441.2017.06.009
裂缝型储层预测的各向异性梯度反演方法研究
An anisotropic gradient inversion for fractured reservoir prediction
摘要
Abstract
It is difficult to meet the demand for an anisotropic four-term inversion using an isotropic three-term inversion equation.Furthermore,obtaining anisotropic logging information as constraint can be challenging.Given this context,the study proposes an anisotropic four-term inversion equation with zero constraints.First,we build an anisotropic gradient four-term inversion objective function according to Bayesian theory.Then,a zero constraint term on the inversion parameters is added to the objective function to obtain an anisotropic four-term inversion equation with zero constraints.Finally,the equation is solved to obtain the maximum likelihood solution for an anisotropic gradient.Field data tests show that the anisotropic gradient anomalies inversion is in agreement with the fracture development zone position located with drilling data,which indicates that the proposed method is effective for fractured reservoir prediction.关键词
裂缝/各向异性梯度/零约束/反演/最大似然解Key words
fracture/anisotropic gradient/zero constraint/inversion/maximum likelihood solution分类
天文与地球科学引用本文复制引用
李春鹏,印兴耀,刘志国,李爱山,袁峰..裂缝型储层预测的各向异性梯度反演方法研究[J].石油物探,2017,56(6):835-840,6.基金项目
国家科技重大专项“亚太地区油气资源评价及未来战略发展方向”(2011ZX05028-006)和中海石油(中国)有限公司科技项目“巴新弧后前陆区复杂构造与油气成藏机制研究”(YXKY-2017-ZY-02)共同资助.This research is financially supported by the National Science and Technology Major Project of China (Grant No.2011ZX05028-006) and The project of Science and Technology of CNOOC Limited (Grant No.YXKY-2017-ZY-02). （2011ZX05028-006）
