..., well pattern is improved, target layer is repeatedly fractured, and oil increase effect is obvious after fracturing. machine learning re-fracturing oil increase effect hydraulic fracturing upstream oil & gas enhanced recovery neural network in-situ stress direction vector fracture...

... mechanical property in-situ stress natural fracture fracture network workflow complexity Reservoir Characterization Upstream Oil & Gas optimization Marcellus Shale hydraulic fracture society of petroleum engineers wellbore fracture modeling hydraulic fracturing complex approach hydraulic...

... hydraulic fracturing, it is desired to evaluate the state of in-situ stresses and pore pressure after slip of faults at relatively close distances to the wellbore. The surrounding solid matrix was assumed to be linear elastic and fluid infiltrated. First, the in-situ stresses of a horizontal rectangular...

... completion technique to the ground conditions. Permeability in coal has major dependence on in-situ stress and natural fractures, and these will have characteristics that vary from field scale to larger regional scale faults and folds. This study investigates the spatial and stratigraphic variability...

... model is matched to the field value by altering the permeability of the SRV. The matched model is used to obtain the in-situ stress changes and the pressure drop within the SRV. The SRV permeability and the pressure drop are used to calculate the aperture, the number, and the spacing of the fractures...

... Abstract Soft rocks, such as rock salt, claystone-gypsum, and gypsum, can cause tremendous dangers to wellbore wall surrounding rock deformation and damage. These rocks are the key to predict in-situ stress more accurately in ultra-deep composite salt-gypsum formation and ensure the safety...

... integrity Reservoir Characterization orientation wellbore stability Wellbore Design strength DOD heterogeneity lateral well coal seam mud weight horizontal well Upstream Oil & Gas practical solution rock strength multibranch lateral well key well GM coal seam in-situ stress borehole...

... two cases are considered: elastic shale behavior and elastoplastic shale behavior. The vertical in-situ stress, σ v is considered 20.7MPa in this analysis. Conclusion In this study the change in ion and heat transfer and consequent changes in pore pressure and stresses around a borehole...

... and the laboratory measurements on the cores are presented in Figure 2 . In-situ stresses and pore pressure are the other aspects of the mechanical earth model. The in-situ stresses were evaluated at the original reservoir pressure condition (i.e., prior to production). One of the advantanges in doing so...

... costing up to $100,000,000 US. For these projects, MEM technology has been found to be extremely valuable, particularly in characterizing drilling risks associated with well exit points below salt where in-situ stress perturbations can occur. These stress perturbations are being reliably mapped using MEM...

...In-Situ Stress Characterization To increase the chance of project success, some exploratory efforts have been made towards locating higher permeability regions using structural or stress framework analysis. Some efforts have been focused on areas of relatively low in-situ stress...

... orientation breakout analysis instability reservoir characterization wellbore integrity in-situ stress criterion dampier sub-basin operation mudrock casing design casing and cementing log analysis drilling fluids and materials well logging united states government reservoir geomechanics rock...