WebSep 17, 2024 · Porous carbonate reservoirs generally have low porosity and permeability, high calcite content in rock minerals, and the natural fractures are less or even not developed [1,2].This type of reservoir is especially developed in the Middle East or central Asia [].Acid fracturing is one of the most effective measures for carbonate stimulation [4,5].

Damage Mechanic Approach - an overview ScienceDirect Topics

Web2. Establishment of hydraulic fracturing model. The hydraulic fracturing model consists of three parts: (i) fluid–solid coupling—fracturing fluid and fluid in formation pores have an influence on rock matrix stress, porosity and permeability; (ii) fracture initiation—the hydraulic pressure reaches the tensile strength of the rock, causing the rock to begin to … Web@article{osti_7285016, title = {Rock Mechanics Project progress and results: rock fracture and pore collapse}, author = {Schatz, J. and Kusubov, A. and Hearst, J. and Abey, A. and Snell, C. and Thigpen, L.}, abstractNote = {Problems in rock fracture and pore collapse were studied with the intent of understanding mechanisms of and developing models for rubble … ior nations

Porous Rock Fracture Mechanics ScienceDirect

WebWhen the collapse column of overburden is disturbed by the working face, the grain loss in the karst collapse column occurs by the dissolution and corrosion of groundwater, thereby inducing the water inrush disaster. The test samples are prepared based on the fractal theory and the Talbol grading theory, and the seepage evolution law of fractured rock in … WebApr 13, 2024 · 1.Introduction. Local tensile stress significantly affects the failure characteristics of rock under tension, bending and even compression conditions [1], [2].Fracture toughness, as a fundamental property of rock materials, is as important as tensile strength in fracture analysis [3], [4].Rocks are different from metal materials, and … WebOct 6, 2024 · Fractured seepage is an important factor affecting the interface stability of rock mass. It is closely related to fracture properties and hydraulic conditions. In this study, the law of seepage in a single fracture surface based on modified cubic law is described, and the three-dimensional discrete element method is used to simulate the dam … on the road idiomas