公开(公告)号：US10822938B2

公开(公告)日：2020-11-03

申请号：US16833806

申请日：2020-03-30

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY, BEIJING

Inventor： Weiyao Zhu ,  Kun Huang ,  Zhen Chen ,  Ming Yue ,  Zhiyong Song ,  Hua Li ,  Baichuan Wang ,  Debin Kong

IPC: E21B43/30 ,  E21B41/00 ,  E21B43/16

Abstract: A method of optimizing well spacing for shale gas development is provided. It belongs to the technical field of hydrocarbon reservoir exploration and development. The method comprises: firstly verifying block area based on the explored geological structure; analyzing the connection situation of a shale reservoir, identifying the minimum developing area units; calculating the recoverable reserves of the units, confirming the candidate units; drilling representative shale cores and analyzing related physical properties; calculating seepage field and pressure field using unified multi-field, multi-flow-regime, and multi-scale mathematical models; calculating the effective recoverable area of each well; and arranging wells based on the rule that the interference among wells is not larger than 10%. Considering the fluid-solid coupling effects, the method can define appropriately well spacing for shale gas exploration and enhance effectively the output of shale gas.

公开(公告)号：US10947836B2

公开(公告)日：2021-03-16

申请号：US16941954

申请日：2020-07-29

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Weiyao Zhu ,  Kun Huang ,  Jing Xia ,  Tongwen Jiang ,  Ming Yue ,  Kai Luo ,  Zhiyong Song ,  Baichuan Wang ,  Debin Kong

IPC: G01N11/00 ,  E21B47/06 ,  E21B36/04 ,  E21B41/00 ,  E21B43/16 ,  G01N7/10 ,  G01N11/02 ,  G01N15/00

Abstract: The present invention provides a device and a method for measuring overburden of injected gas in cyclic gas injection development of condensate gas reservoir. The device comprises sand packed model and temperature control system. The temperature control system is nested outside the sand packed model. The sand packed model comprises sand pack cell, four gas inlets, four gas outlets, bracket, direction control component, rotating shaft, upper cover, lower cover, fixing bolts, two top pressuring inlets, pressure transmission rods, pressure transfer piston and multiple gas sampling ports. The sand pack cell can be filled with quartz sand of different particle size and composition, and the angle of the whole device is adjusted by the direction control component.