... except for some shales impacting local flow. A reservoir modelling study was conducted to identify the most effective inflow control technology (ICT) and to determine the optimal interval for the annulus packers. The long horizontal wells are anticipated to yield a low production rate, leading...

... drilling new wells. The cap of most depleted fields is composed of shale rock that often exhibits variation in strength properties along and across the lamination planes and has been responsible for the major source of instability [ Carey & Torsæter, 2019 ; Mehrabian et al., 2019 ]. The mechanical...

... schooner field reservoir characterization mineral rot halite cement and bond evaluation evaporite reservoir geomechanics carnallite bayesian inversion algorithm attenuation ovality microannuli shale Introduction Geological Setting Evaporites in the Zechstein and Rot Halite Aside...

... 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...

... reservoir characterization information drilling data acquisition mudstone resolution austria government mudrock europe government log analysis reservoir geomechanics geological subdiscipline facies shale application rpm porosity estimation workflow pdd classification correlation...

... shale. The shale gas evolution, originating from North America, has been continuously influencing the world energy outlook, in particular for China due to its enormous geological resource quantity and eager demand of clean energy ( Sondergeld et al. 2010 ; Yang et al. 2016 ; Zou et al. 2016...

... 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 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...

... 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...

... characters of the leak-off behaviour. Based on the pore size distribution of shale matrix, the capillary tubes with the corresponding radii can be used to represent the tortuous flow paths for fluid flow through the shale matrix, and the sum of the tube volumes represents the total volume available for fluid...

... Intelligence Upstream Oil & Gas multiplier Pareto front reservoir simulation seismic data production data algorithm Reservoir Characterization history matching information seismic history seismic misfit permeability saturation bulk modulus optimization problem impedance shale lt 2...

... to model the NTG for various deepwater reservoirs in the Gulf of Mexico (GOM): Calibration of acoustic impedance (AI) curve into NTG from each individual well and propagating the NTG using stochastic method guided by seismically inverted AI and facies distribution Scaling Gamma Ray (GR) or shale...

..., 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...

... reservoir characterization wellbore design effective tangential stress reservoir geomechanics coefficient spe 143320 shale wellbore instability vertical in-situ stress international journal plastic zone equation annular pressure drilling different time step effective stress solute mass...

.... 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...

... 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 dolomitic limestone sandstone minor streak cement...