Innovations and Challenges of Vibration Coupled SeepageMechanics in Oil and Gas Reservoir Development
Pu Chunsheng
Zheng Liming
Liu Jing
Abstract：With the development of oil and gas field, the complex reservoirs including low or ultra-low permeability reservoirs, heavy or ultra-heavy oil reservoirs, small fault block reservoirs, thin reservoirs, high water-cut reservoirs have been drawing increasing attention.Low-frequency vibration oil extraction technology has great potential for the complex reservoirs to improve the injection and output, because of its advantages of low cost, high effectivity, no formation damage and environmental pollution.Based on studying the outcomes in related fields at home and aboard, It is found the key lies in the theory of reservoir seepage dynamic mechanism under elastic waves to improve the field effect stability and optimize decision-making of low-frequency vibration oil extraction technology in this study.The generalization of the development of vibration coupled seepage mechanics can effectively distinguish the difference of seepage mechanics under vibration, elastic wave propagation theory in porous media and classical oil and gas seepage mechanics in aspects of the applied disciplines, source types, fluid flow equations, and boundary conditions.The main difficulties for quantitative description of mechanisms in dynamic flow in porous media by vibration coupled seepage mechanics are analyzed.Finally, key issues to be solved for the development of vibration coupled seepage mechanics are suggested.
Keywords：low-frequency vibrationseepage mechanicselastic wave propagationporous mediumpetroleum geology
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：16( 1247-1262 )