欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用压力脉冲衰减法测量了岩心柱的渗透率，讨论了内压和有效应力对渗透率的影响。同时，采用岩屑压力衰减法测量了页岩基质渗透率，并基于控制变量法优选出页岩基质渗透率实验参数。研究表明：在低内压的条件下，由于滑脱效应使渗透率增加；页岩渗透率随有效应力的升高呈非线性降低，孔隙压力越低，应力敏感性越强，有效应力在升高、降低过程中存在应力一应变滞后回线。岩屑压力衰减法测量基质渗透率实验的初始压力为1．3～1．38MPa，岩屑平均粒径为0．7～1mm，岩屑样品质量为25～30g。
英文摘要：
By means of pulsed-decay method, the perrneabilities of shale plugs are measured, the influences of the pore pressure and effective stress on the permeabilities are discussed. Meanwhile the shale matrix permeabihty is tested by crushed-rock pressure-decay method and furthermore according to variable controlling method, the experi- mental parameters of the matrix permeability are optimized. The achievements show that under the conditions of the internal pressure, because of the slippage effect, the permeabilities are enhanced; with the rise of the effective stress, the shale permeability reduces nonlinearly, the lower the pore pressure is, the stronger the stress sensitivity will be, in the course of the increase and reduction of the effective stress, there exits the hysteresis loop between the stress and strain. The initial pressure measured in the matrix permeability experiment by rock pressure-decay method is 1.3-1.38 MPa, the average particle size of the crushed rock is 0. 7-1 mm and the rock sample mass is 25-30 g.
同期刊论文项目
同项目期刊论文
Well testing analysis for horizontal well with consideration of threshold pressure gradient in tight
An efficient algorithm to compute transient pressure responses of slanted wells with arbitrary incli
Exact Solutions of the Klein-Gordon Equation with Position-Dependent Mass for Mixed Vector and Scala
Lower limits of evaluation parameters for the lower Paleozoic Longmaxi shale gas in southern Sichuan
Transient pressure behavior for a horizontal well with multiple finite-conductivity fractures in tig
A composite model to analyze the decline performance of a multiple fractured horizontal well in shal
A model for transient flow in porous mediaembedded with randomly distributed tree-shaped fractal net
Thermo-associative and salt-associative graft copolymers of surfactant macromonomers and Acrylamide:
Preparation of Hydrophobically-Modified Acrylamide Copolymers Using Poly(ethylene imine) as a Photoi
Analytical solutions for flow of horizontal well in compressible, three-dimensional unconsolidated f
Relationship of the Williams-Poulios and Manning-Rosen，Potential Energy Models for Diatomic Molecule
Two-phase pressure transient analysis for multi-stage fractured horizontal well in shale gas reservo
Molecular spinless energies of the modified Rosen-Morse potential energy model in higher spatial dim
Geological characteristics and resource potential of lacustrine shale gas in the Sichuan Basin, SW C
INTERPRETATION OF PRESSURE TESTS IN HORIZONTAL WELLS INHOMOGENEOUS AND HETEROGENEOUS RESERVOIRS WITH
Performance of multiple fractured horizontal wells in shale gas reservoirs with consideration of mul
Performance of fractured horizontal well with stimulated reservoir volume in unconventional gas rese
Research on the production performance of multistage fractured horizontal well in shale gas reservoi
A new rod source model for pressure transient analysis of horizontal wells with positive/negative sk
Synthesis of Copolymer of Acrylamide and a Cationic-Nonionic Bifunctional Polymerizable Surfactant a
Using a Fisher Linear Discriminator to Predict Gas Distribution from Seismic Parameters in a Mountai
Finite Element Method Using a Characteristic-Based Split for Numerical Simulation of a Carbonate Fra
Analysis of horizontal well pressure behaviour in fractured low permeability reservoirs with conside
期刊信息
位置：