... reservoirs result in production from several scale-dependent fluid flow and storage systems, or depletion systems, that combine to contribute to the total production. These depletion systems can include matrix level features defined by pore size, natural fracture systems within the matrix, and hydraulic...

... placement of a producer well is based on the available information about the presence of natural fractures and formation stresses. Identifying the depth intervals with natural fractures and the relative magnitudes of the maximum and minimum horizontal stresses enables us to intelligently place a producer...

... the three most prominent features in the shale reservoirs, including shale matrix, natural fractures, and hydraulically induced fracture. Shale cores with dimensions of 1 inch in diameter and approximately 1.5 inch in length were used in all experiments. The impact of CO 2 soaking time and soaking pressure...

... interpretation provided the number, type, density, and orientation of the natural fractures. Figure 4 shows the type and the number of different fractures which were obtained from Quanta Geo log. The resistive continuous fractures, when an oil-based mud is used, are considered to be the open natural fractures...

... including a set of 1,000 randomly distributed natural fractures. In both studies, four embedded-fracture parameters are set to vary within predefined continuous ranges. The objective is to minimize history matching error for field-recorded, bottom-hole pressure and gas production data with oil production...

.... This paper discusses several well-testing applications with corresponding analyses pertaining to unconventional wells. The results provided valuable information to help optimize production and evaluate reservoir potential. drillstem/well testing natural fracture Drillstem Testing wellbore storage...

... horizontal stress, natural fracture permeability, and in-situ pore pressure. The determination of in-situ stress is crucial for designing, modeling, and evaluating hydraulic fractures. This paper presents a field example of a micro-fracturing job to determine minimum horizontal stress and characterize...

... shale gas Upstream Oil & Gas simulator completion natural fracture differential stress Ouene pressure depletion wellbore frac simulator fracture frac design society of petroleum engineers oil shale fracture model shale oil optimization surface drilling data poroelastic...

... Abstract Diatomite oil reservoirs are unconventional. They hold billions of barrels of oil in a tight rock matrix with unusual physical properties, and contain a stress-sensitive natural fracture system that introduces a strong permeability anisotropy during fluid injection. Perhaps the most...

... Abstract The inspiration for this study is to improve modeling and representation of diatomites, which constitute a major resource base in California. These rocks, because of their high porosity, experience subsidence, which induces changes in conductivities of the natural fractures. Use...

... microseismic data hydraulic fracturing natural fracture fracture Scenario hydraulic fracture geometry fracture geometry Permian Basin unconventional reservoir workflow stimulation design hydraulic fracture wellbore complex reservoir fracture network production performance Introduction...

... such as natural gas and flow back water. Our study shows that the radon wellhead concentration could be significant. Impacts of factors such as natural fracture network properties, formation petrophysical parameters and fracture dimension are investigated using sensitivity study through numerical simulations...

... had effective fracture densities greater than 0.22 fractures/ft. and spacings less than 4.30 ft. The proposed method offers opportunities for exploiting untapped intervals in the fields producing from the Monterey Formation. good production performance natural fracture daily oil production...

... Abstract A three dimensional geomechanical model was built using commercially available Finite Element Analysis (FEA) software to simulate propagating hydraulic fracture (HF) and its interaction with a vertical natural fracture (NF) in tight medium. The approach initially involved studying...

... Abstract Horizontal wells in liquids-rich shale plays are now being drilled such that lateral and vertical distances between adjacent wells are significantly reduced. In multistacked reservoirs, fracture height and orientation from geomechanical effects coupled with natural fractures create...

... Abstract Conventional porous-medium-flow models are not suitable for naturally fractured, nano-porous reservoirs where the conditions of the continuum assumption do not hold. Due to the abrupt pore-scale variations and severe contrast between matrix and fracture characteristics, the velocity...

... Abstract Estimation of permeability in the Stimulated Reservoir Volume (SRV) is a vital input in any completion optimization workflow. One method to estimate the stimulated permeability in the SRV is to couple geomechanical modeling of the interaction between hydraulic and natural fractures...

... & Gas flowback data material balance approach expansion fracture shale gas gas production fracture network saturation free gas saturation hydraulic fracturing society of petroleum engineers artificial intelligence natural fracture Material Balance Equation cumulative water production...

... Abstract This paper describes the application of a workflow that uses Geophysics, Geology, and Geomechanics (3G) for completion optimization. The 3G workflow relies on the modeling of the interaction between hydraulic and natural fractures to estimate key reservoir properties that could be used...

.... hydraulic fracturing reservoir simulator shale well half fracture length Upstream Oil & Gas microseismic event Shale Capacity complex reservoir natural fracture sweet spot shale gas fracture fracture density Shale Capacity model shale reservoir well performance estimation wellbore...