公开(公告)号：US12298292B1

公开(公告)日：2025-05-13

申请号：US18989220

申请日：2024-12-20

Applicant: Chengdu University of Technology

Inventor： Laixing Cai ,  Weixue Guo ,  Chengfang Yuan ,  Tian Yang ,  Yaohui Dong ,  Yuhang Li

IPC: G01N33/44 ,  G01N23/2251 ,  G01N33/24 ,  G06F30/28 ,  G06F111/10 ,  G06F113/08

Abstract: The present invention belongs to the technical field of petroleum and natural gas exploration and development, and specifically relates to a study method for chlorite growth pattern based on an in-situ high-precision observation means. The method includes: S1: selecting a sample and quantitatively characterizing mineral components; S11: selecting a typical sandstone sample developed with a chlorite coating and cement, grinding a rock slice, and observing under a microscope and a scanning electron microscope to determine a basic morphological characteristic, occurrence state and type of the chlorite; S2: performing data preprocessing on the sample; S3: establishing a water-rock numerical simulation model; S4: developing a water-rock numerical simulation experiment; S5: analyzing a water-rock numerical simulation result; and S6: explaining and applying the water-rock numerical simulation result.

公开(公告)号：US20240418086A1

公开(公告)日：2024-12-19

申请号：US18334348

申请日：2023-06-13

Applicant: Chengdu University of Technology

Inventor： Tian Yang ,  Qing He ,  Laixing Cai ,  Wenqiang Yu ,  Xiaofang Li

IPC: E21B49/08 ,  G01N15/08

Abstract: A method for correcting physical properties of laumontite-rich clastic rock reservoirs based on overburden pressure porosity and permeability tests includes: conducting porosity and permeability tests on rock samples under normal temperature and pressure conditions; analyzing a type of a reservoir cement and characteristics of a reservoir space; comparing variations in the porosity and permeability between a laumontite-containing reservoir and a laumontite-free reservoir under overburden pressure conditions; fitting a variation function to establish relations between porosity, permeability, and overburden pressure in the laumontite-containing reservoir; and creating a correction plate of the permeability of the reservoirs with different laumontite contents.