公开(公告)号：US12093343B1

公开(公告)日：2024-09-17

申请号：US18592581

申请日：2024-03-01

Applicant: Southwest Petroleum University ,  China University of Geosciences, Wuhan ,  University of Electronic Science and Technology of China

Inventor： Kun Zhang ,  Shu Jiang ,  Pei Liu ,  Xuri Huang ,  Xiangyu Fan ,  Hong Liu ,  Hu Zhao ,  Jun Peng ,  Xiong Ding ,  Lei Chen ,  Xuefei Yang ,  Bin Li ,  Binsong Zheng ,  Jinhua Liu ,  Fengli Han ,  Xueying Wang ,  Xinyang He ,  Xuejiao Yuan ,  Jingru Ruan ,  Hengfeng Gou ,  Yipeng Liu

IPC: G06F17/18 ,  E21B49/00

CPC classification number: G06F17/18 ,  E21B49/00 ,  E21B2200/20

Abstract: Provided is an analysis method for determining gas-bearing situation of an unknown shale reservoir, includes: S1, selecting a shale reservoir of a target interval of a place; and collecting data of parameters of cores of each of a known gas-bearing shale reservoir A and a known water-bearing shale reservoir B; S2, calculating average values of the parameters of each of the reservoirs A and B respectively; S3, calculating average differences of the parameters of each of the reservoirs; S4, calculating covariance values of the parameters of each of the reservoirs; S5, establishing, according to the covariance values, an equation group and resolving discriminant coefficients; S6, establishing a discriminant equation according to the discriminant coefficients and solving a discriminant index; and S7, obtaining values of parameters of cores of a sample of the unknown shale reservoir, calculating a discriminant value, and determining gas-bearing situation of the unknown shale reservoir.

公开(公告)号：US20240296204A1

公开(公告)日：2024-09-05

申请号：US18592581

申请日：2024-03-01

Applicant: Southwest Petroleum University ,  China University of Geosciences, Wuhan ,  University of Electronic Science and Technology of China

Inventor： Kun Zhang ,  Shu Jiang ,  Pei Liu ,  Xuri Huang ,  Xiangyu Fan ,  Hong Liu ,  Hu Zhao ,  Jun Peng ,  Xiong Ding ,  Lei Chen ,  Xuefei Yang ,  Bin Li ,  Binsong Zheng ,  Jinhua Liu ,  Fengli Han ,  Xueying Wang ,  Xinyang He ,  Xuejiao Yuan ,  Jingru Ruan ,  Hengfeng Gou ,  Yipeng Liu

IPC: E21B49/00 ,  G06F17/18

CPC classification number: G06F17/18 ,  E21B49/00 ,  E21B2200/20

Abstract: Provided is an analysis method for determining gas-bearing situation of an unknown shale reservoir, includes: S1, selecting a shale reservoir of a target interval of a place; and collecting data of parameters of cores of each of a known gas-bearing shale reservoir A and a known water-bearing shale reservoir B; S2, calculating average values of the parameters of each of the reservoirs A and B respectively; S3, calculating average differences of the parameters of each of the reservoirs; S4, calculating covariance values of the parameters of each of the reservoirs; S5, establishing, according to the covariance values, an equation group and resolving discriminant coefficients; S6, establishing a discriminant equation according to the discriminant coefficients and solving a discriminant index; and S7, obtaining values of parameters of cores of a sample of the unknown shale reservoir, calculating a discriminant value, and determining gas-bearing situation of the unknown shale reservoir.

公开(公告)号：US11418795B2

公开(公告)日：2022-08-16

申请号：US17460360

申请日：2021-08-30

Applicant: University of Electronic Science and Technology of China

Inventor： Ce Zhu ,  Han Qin ,  Yonghua Wang ,  Yipeng Liu ,  Kai Liu

IPC: H04N19/147 ,  H04N19/176 ,  H04N19/51 ,  H04N19/149

Abstract: A temporal domain rate distortion optimization based on video content characteristic and QP-λ correction provides the temporal domain rate distortion optimization based on the video content characteristic and the QP-λ correction for a new generation encoder AV1, wherein according to a previous temporal domain dependency relationship under an HEVC-RA coding structure, a feature of the new generation encoder AV1 and a video sequence feature, an aggregation distortion of a current coding unit and an affected future coding unit is estimated and ta propagation factor of the current coding unit in a temporal domain distortion propagation model is calculated by constructing a temporal domain distortion propagation chain, wherein a Lagrange multiplier is adjusted through a more accurate propagation factor to realize a temporal domain dependency rate distortion optimization, and a relationship of QP-λ is re-corrected and an I frame is adjusted to achieve a better coding effect.