... Abstract Shale swelling, triggered by the interaction between shale formations and water-based mud (WBM), presents significant challenges during hydrocarbon drilling, including formation damage, wellbore instability, and the potential for well blowouts. In this invention, we introduced two...

... Abstract The instability of wellbores in shale formations poses a significant challenge in the drilling industry. Water and ions move through shale via different complex mechanisms, leading to wellbore instability. This study explores the effectiveness of specific materials, including synthetic...

... Abstract It has been over 15 years for the development of marine shale gas reservoirs in China, and the operators always look for promising reservoirs in the kerogen-rich source rock. However, the lacustrine shale- oil reservoir is not like the marine shale-gas reservoir because the kerogen...

... Abstract Permeability of shale and coal is a main controlling factor for gas migration and is sensitive to effective stress, sorption/desorption-induced internal swelling/shrinkage (swelling/shrinkage at fracture/pore surfaces), and gas rarefaction effects. The dependence of gas permeability...

... technology conference sidetrack inclination reservoir borehole design inversion directional curve northern oman shale conductive layer low-resistive separation Introduction Horizontal wells are more expensive to drill than vertical wells and generally have a higher risk than do vertical...

... manifests itself on the synthetic seismic data within the relevant bandwidth of the available seismic. In the Extended Elastic Impedance domain, chi projections of +30 and -60 appear to separate sand from shale lithology, and relatively high from low porosity in the Barik reservoir, respectively. Various...

... projects. enhanced recovery reservoir zone thermal method Upstream Oil & Gas steam-assisted gravity drainage completion communication observation well completion strategy operation pilot area information steamflood evaluation SAGD zone-1b zone shale horizontal well permeability...

... evaluation of the practical application of CSS are the main keys to understanding reservoir performance and identifying that opportunities of steam stimulation will improve the ultimate recovery. thermal method steam-assisted gravity drainage Modeling & Simulation SAGD shale porosity...

... their own challenges. Common to both concepts are the difficulty in obtaining adequate conformance in a field that is characterised by high and highly variable permeabilities in a channelised environment and that includes lateral extensive shales that break the system up into vertically distinct sand units...

... Abstract It is common practice to model shales in dynamic simulation models implicitly by assigning a global reduction factor to the sand's vertical permeability. Such an approach is required due to the complexity and computational limitations of modelling shales explicitly in large simulation...