The presence of bedding planes (BPs) in unconventional shale reservoirs is common and widespread. BPs always affect fracture propagation. objective this study was to investigate the impacts on multiple hydraulic fracturing. were assumed be perpendicular direction fractures. Based block distinct element method, we established a numerical model simulate propagation with BPs. considered fluid part...

The petroleum industry’s use of horizontal drilling and hydraulic fracturing technologies has changed organic-rich mudstones, like the Devonian Marcellus Formation, from conventional hydrocarbon sources and seals to unconventional ‘shale gas’ reservoirs. Organic-richness and formation brittleness are two principal components of reservoir quality assessment, as the former is indicative of the am...

The term ‘Unconventional Reservoirs’ is used in the oil and gas industry for hydrocarbon reservoirs that have very low permeability in the magnitude of microdarcy (μd) and therefore rely on artificially introducing pathways for fluids and gases, commonly by using hydraulic fracturing techniques, to enable economic production. This approach of using fracturing stimulation campaigns is also incre...

Laboratory experiments are an effective way to study the initiation and propagation of hydraulic fractures for complex stress level structure underground reservoirs. However, it is difficult observe directly in rock or mortar specimens. In this study, a kind transparent rock-like material whose tension–compression ratio reaches 1/9.5 at normal temperature was obtained, which helped us directly....

The selection of appropriate wells for hydraulic fracturing is one of the most important decisions faced by oilfield engineers. It has significant implications for the future development of an oilfield in terms of its productivity and economics. In this study, we developed a fuzzy model for well selection that combines the major objective criteria with the subjective judgments of decision maker...