... groundwaters from the near surface shallow aquifers to the deeper Vaca Muerta shale ~ 2000 m depth subsea in the Neuquén Basin for water disposal monitoring. The regions included in this study are Cruz de Lorena, Coiron Amargo Sur Oeste and Sierras Blancas blocks that are operated by Shell Argentina...

... window, require high mud weights to prevent borehole collapse. Therefore, wells are drilled with inherent risks of stuck-pipe, fluid losses, and possible set contingency casing string - all of which can be very expensive in terms of equipment, and lost time. Drilling through shale is inevitable. Shale...

... to their storage, a systematic study relating pressure to the gas adsorption capacity of Jordanian shale formations is conducted. Additionally, the pendant drop method and the Axisymmetric Drop Shape Analysis technique are used to measure and evaluate brine-gas interfacial tension (IFT) as a function of pressure...

..., and mitigates the solvent injection ( Berawala & Andersen, 2020 ). Therefore, adsorption is an essential mechanism when modeling gas production or gas injection in shales to accurately predict the gas reserves, recovery rates, and reservoir storage capacity of the injected gas. While many studies...

... Abstract Bedding layers are well-developed in shale and recognized to enhance the complexity of the hydraulic fracture network. A micromechanical evaluation approach of shale bedding layers based on indentation testing techniques was proposed. Rock thin section identification and scanning...

...Differential Volumetric Adsorption Measurement Experimental Measurements The current study aims to contribute to accurate measurement and modeling of gas sorption capacity on shale. An innovative experimental technique based on volumetric differential pressure is designed to measure...

... shale mullin lower sand history matching crude oil asphaltene connectivity reservoir fluid geologic time reservoir Introduction Figure 5 provides excellent data for evaluation of connectivity.[ 28 ] The upper sand and thelower sand each have oils with equilibrated asphaltenes thus...

... structural geology pore pressure horizontal stress vertical resolution avo inversion resolution prediction seismic velocity in-situ stress lithology artificial intelligence wellbore design seismic data shale inversion geomechanical property Introduction Reliable predrill predictions...

... is an essential step prior to the microstructural analysis. In this study, we trained a Random Forest classifier to relate certain features corresponding to each pixel and its neighboring pixels in a scanning electron microscopy (SEM) image of shale to a specific component type; thereby developing a methodology...

.... In this experiment, (1) an initial confining pressure of 200 psi was applied. (2) Axial and radial stress were then increased to 3200 psi and 3000 psi. (3) the radial strains were kept constant while increasing the axial stress to 5000 psi. Abstract Frequently, shales are treated as isotropic formations...

... ( θ ) ) m i n   Conclusions In this paper, we have incorporated the influences of anisotropy in elastic properties and rock failure criteria on the brittleness index of shales to provide a precise way to get more accurate brittleness index at different angles...

... organically rich "hot" shales with total organic carbon (TOC) of 8 to 10%; these are located stratigraphically at the base of each member. Additional organic-rich intervals within the Lam and Meem are less-effective source rocks, with lower TOC values. The PSM consisted of 17 depositional events and 2...

... enhanced recovery from CO 2 huff-n-puff could be partly attributed to surface effects in addition to the recognized gas-liquid interaction mechanisms. thermal method steam-assisted gravity drainage adsorption enhanced recovery Upstream Oil & Gas SAGD Niobrara shale sample co 2 shale...

... permeability rocks such as shales. In contrast, tons of shale cuttings are generated and discarded at the end of drilling. Small scale testing, such as instrumented indentation test, could be performed on shale cuttings to obtain the mechanical properties of shale rocks. Unlike core samples, however...

... Abstract Shale reservoirs are estimated to account for approximately 10-30% of oil and gas worldwide, yet operators rarely produce more than 10% of the original hydrocarbons in place from them. These poor production numbers are a result of the assumption that the same pressure-volume...

... TOC. In addition to the Sembar formation, intra-formational shales within Goru formation particularly Talhar Shale also contain a descent source rock potential. The majority of the sand deposited with insufficient accommodation for the development of prograding geometries ( Ahmad & al, 2004...

...; Onn C., et al., 2016 ]. These reservoirs are caused by fine-grained sandstone reservoir including shaly-sand reservoir, thin laminated sandstone-shale sequences, fresh formation water, conductive minerals, and internal microporosity and superficial microporosity. This study of LRLC zones...

... brittleness index estimation consideration better estimation configuration application rock mechanical property elastic moduli dataset mechanical property microfracture intensity society of petroleum engineers shale compressive strength intensity lithofacies brittleness acquisition...

... Abstract Oil and gas wells produce hydrocarbons for a limited number of years, and at the end of their production life they need to be plugged and abandoned. This process has to be done in a safe and economic way. Creep deformation of shale rock in uncemented casing sections may simplify well...

... This paper focuses on completion optimization in the Wolfcamp and Spraberry shales in the West Texas Permian Midland Basin. Development of these reservoirs requires multiple horizontal wellbores at different depths. Multi-zone reservoirs, such as the Spraberry and Wolfcamp shales, present...