公开(公告)号：US11487045B2

公开(公告)日：2022-11-01

申请号：US17579128

申请日：2022-01-19

申请人： China University of Petroleum-Beijing

发明人： Leilei Yang ,  Donghua Chen ,  Guo Wei ,  Jing Hu ,  Weiquan Zhao ,  Keyu Liu ,  Jianliang Liu ,  Wei Yang ,  Xianglu Tang ,  Jin Lai

IPC分类号： G01V11/00 ,  G01V1/28 ,  G01V1/30 ,  G01V99/00 ,  G01N15/08 ,  G01N33/24

摘要： The present disclosure provides a method for recovering a porosity evolution process of sequence stratigraphy of carbonate rocks. The method comprises: a step of establishing a sequence stratigraphic framework of carbonate rocks; a step of dividing diagenetic stages; a step of simulating diagenesis and porosity evolution with increasing reservoir thickness and continuous superposition of multiple reservoirs during cyclic rise and fall of sea level to obtain a simulation result; and a step of calculating the porosity evolution in space over time by using the simulation result as initial values for simulation of diagenetic evolution process and simulating in stages and continuity the multi-stage diagenetic evolution process that the carbonate rock strata undergo after sediment based on the divided diagenetic stages. Compared with the traditional recovery of single reservoir porosity with time evolution, the method fully considers the superposition effect of multiple upper reservoirs in the process of reservoir sedimentary-diagenesis.

公开(公告)号：US20220308257A1

公开(公告)日：2022-09-29

申请号：US17579128

申请日：2022-01-19

申请人： China University of Petroleum-Beijing

发明人： Leilei Yang ,  Donghua Chen ,  Guo Wei ,  Jing Hu ,  Weiquan Zhao ,  Keyu Liu ,  Jianliang Liu ,  Wei Yang ,  Xianglu Tang ,  Jin Lai

IPC分类号： G01V99/00 ,  G01N33/24 ,  G01N15/08

摘要： The present disclosure provides a method for recovering a porosity evolution process of sequence stratigraphy of carbonate rocks. The method comprises: a step of establishing a sequence stratigraphic framework of carbonate rocks; a step of dividing diagenetic stages; a step of simulating diagenesis and porosity evolution with increasing reservoir thickness and continuous superposition of multiple reservoirs during cyclic rise and fall of sea level to obtain a simulation result; and a step of calculating the porosity evolution in space over time by using the simulation result as initial values for simulation of diagenetic evolution process and simulating in stages and continuity the multi-stage diagenetic evolution process that the carbonate rock strata undergo after sediment based on the divided diagenetic stages. Compared with the traditional recovery of single reservoir porosity with time evolution, the method fully considers the superposition effect of multiple upper reservoirs in the process of reservoir sedimentary-diagenesis.