... punch test. Intermediately upscaled shale models can be developed to model shale caprock behavior under subsurface storage operations such as CO 2 or H 2 storage. Of importance to creating a useful material model is to take into account the anisotropic nature of shale caprock, by introducing parallel...

... characterization information pdd mudrock europe government log analysis reservoir geomechanics geological subdiscipline facies shale rock type logging while drilling estimation classification correlation application drilling data acquisition mudstone resolution saturation probability dataset...

... Abstract In shale gas reservoirs, the fluid imbibition was quite common during well drilling and stimulation, and it also related with engineering designs such as the borehole instability control and hydraulic fracturing operation, which fluid spontaneous imbibition into shales became a hot...

... Abstract Widely-distributed organic-rich shales are being considered as one of the important carbon sequestration targets owing to three differentiators compared with conventional reservoirs and saline aquifers: 1) trapping of significant amount of CO 2 permanently; 2) kerogen-rich shale's...

... the results of proppant embedment and conductivity, including closure pressure, elastic-plastic properties, properties of viscoelastic proppant and rock are investigated. Experimental researches are also conducted to evaluate conductivity at different closure pressures for the fractures of steel plate, shale...

... research has been conducted into the relationship between wettability and surface forces of shale samples that have been ground up and/or otherwise been altered. However, very little attention has been given to measuring the zeta potential of the surface of unbroken, intact shale samples. A new technique...

... Abstract We have performed a laboratory study of cryogenic fracturing for improving oil/gas recovery from low-permeability shale and tight reservoirs. Our objective is to develop well stimulation techniques using cryogenic fluids, e.g. liquid nitrogen (LN) to increase permeability in a large...

... Abstract The fluid leak-off into the shale matrix during hydraulic fracture treatment has been a critical issue in determining fracture geometry. Furthermore, fluid intake also affects mechanical properties of the surrounding rock matrix which in turn affects fracture propagation. Conventional...

... problem information seismic history seismic misfit permeability multiplier Pareto front saturation seismic data production data algorithm bulk modulus impedance shale lt 2 misfit (1) κ d r y r = κ inf r 1 + E κ r exp ( − P e f f / P κ r...

...Petrophysical Log Calibration Consider a simple case in Fig. 1 . A reservoir model cell has an average thickness of 10 feet. In this particular case, a 10-foot cell is consistent of 5-feet of reservoir sand with total porosity of 30% and another 5-foot shale layer with total porosity of 16...

..., a stochastic approach is usually needed. In either case, the uncertainties in facies distribution must be fully assessed. This paper presents a case study and workflow in which different sand-shale proportions (more optimistic, basic, and less optimistic) are considered in facies modeling, in order...

... Abstract One of the major issues with the development of unconventional ultratight shale-gas reservoirs is related to concerns about underdisplacing or overdisplacing hydraulic proppant-fracture treatments in multiple-zone completions in horizontal wells. In recent years, a very large number...

... storage in aquifers and depleted gas reservoir. The storage capacity of gas reservoirs for CO 2 depends also on the sorption in the omnipresent minerals and shales. It is important to investigate whether adsorption on shales gives an important contribution to the storage capacity. It is also important...

... drilling hazards in their well programme and planned the MELES as a contingency system should these situations be realized. While drilling the 12.25-in. hole section below the 13-3/8-in. casing, situations with caving, sloughing, and swelling shale sections, combined with lost returns were encountered...

.... In Europe, unconventional reservoirs (in particular shale gas) are receiving considerable attention. Basins with potential shale-gas plays exist, as does the infrastructure to transport gas to the end user. In addition, the gas-price scenario is favorable as well. It will be critical to find US analogs...

... & gas international journal underbalanced drilling pore pressure effective tangential stress coefficient spe 143320 plastic zone shale wellbore instability reservoir geomechanics annular pressure drilling different time step effective stress solute mass fraction vertical in-situ stress...

... and the Novel Flexible and Expanding cement system and details one well case history of nine wells which is part of the upstream agreement with Saudi. dolomite cement sheath shale drilling fluids and materials siltstone upstream oil & gas drilling fluid management & disposal spe 131577...

... mechanics stability equation shale plug triaxial test laboratory Chang Introduction Rock mechanical properties are essential for accurate in situ stress analysis and geomechanical evaluations including wellbore stability analysis, sand production prediction and management, hydraulic...

... shelf, slope and basinal. The Middle and Upper Jurassic stratigraphic section includes the Dhruma, Sargelu, Najmah and Gotnia formations. The Dhruma Formation consists of soft, yellowish gray, bentonitic calcareous shale, deposited in a deep slope or basinal environment. The Sargelu Formation consists...

... Journal operation unconventional project injection module incentive reservoir exploitation SAGD unconventional resource economics operational intensity shale hydrocarbon oil and gas investor enhanced recovery Upstream Oil & Gas Reservoir Description extraction application...