Unconventional oil and gas formations are abundant, have become an increasingly important part of the global energy supply, attracting increasing attention from industry. Predicting key reservoir properties plays a significant role in both geological science subsurface engineering workflows. With advent horizontal well drilling multiple-stage hydraulic fracturing, Montney Shale formation is one...

This study presents an analytical model for estimating minimum horizontal stress in hydraulic fracturing stimulations. The conventional Diagnostic Fracture Injection Test (DFIT) is not practical ultra-tight formations, leading to the need pump-in/flowback tests. However, ambiguities results of these tests have limited their application. proposed based on linear diffusivity equation and material...

Tight oil reservoirs have been a concerned of the industry due to their substantial influence on production. Due poor permeability, numerous problems are encountered while producing from tight reservoirs. Petrophysical and geomechanical rock properties essential for understanding assessing fracability reservoirs, especially enhance permeability. In this study, Saadi B reservoir in Halfaya Iraqi...

We performed an integrated study of multistage hydraulic fracture stimulation of two parallel horizontal wells in the Bakken Formation in the Williston Basin, North Dakota. There are three distinct parts of this study: development of a geomechanical model for the study area, interpretation of multiarray downhole recordings of microseismic events, and interpretation of hydraulic fracturing data ...

Prokaryotes are likely to be the most numerous organisms on the planet 1 , occupying a more diverse set of ecological niches than eukaryotes. Knowledge of prokaryote diversity is severely limited by our inability to recreate the conditions in the laboratory that are needed to cultivate the majority. Discrepancies between direct microscopical counts and the numbers of colony-forming units can be...