... in-situ stress conditions where σ H max > σ v > σ H min , such as in shallow formations, wells drilled in the direction of maximum horizontal stress at angles closer to the vertical have the most stability at the plane of weakness contrary to the conditions that apply for stability...

... wellbore complexity minimum horizontal stress complexity maximum horizontal stress hydraulic fracture permeability URTeC: 2687030 Increasing Hydrocarbon Recovery from Shale Reservoirs through Ballooned Hydraulic Fracturing Ahmed Algarhy*, Texas Tech University, Mohamed Soliman, University...

... problems. Reservoir Characterization pore pressure Upstream Oil & Gas hydraulic fracturing horizontal stress MPa horizontal well propagation Simulation maximum horizontal stress infill well axis fracture reservoir pressure minimum horizontal stress fracture propagation Ghassemi...

... Abstract Microseismicity induced by hydraulic stimulation is known to exhibit peculiar source mechanisms patterns -namely, dip-slip or strike-slip events with polarity reversal, regardless of the background stress. Such events typically strike parallel to the maximum horizontal stress, which...

... maximum horizontal stress fracture initiation hydraulic fracture principal stress wellbore pressure fracture perforation interface plot show simulated natural fracture geometry injection phase interaction secondary fracture fracture geometry URTeC: 2460449 Experimental Study of Hydraulic...

... the density logs to the reservoir depth. The minimum horizontal stress magnitude can also be determined from well tests, such as a mini-frac test or diagnostic fracture injection test. There is, however, no direct and easy way to measure the magnitude of maximum horizontal stress (S Hmax ) at the reservoir...

.... Preliminary conclusions include: Interference during stimulation operations is not limited to the direction of maximum horizontal stress; multiple dominant orientations of interference have been observed. Natural fractures can enhance productivity but also increase the risk of well interference...

... striking perpendicular to each other were identified. The WSW-ENE fracture set has the same orientation as the identified maximum horizontal stress which also corresponds to the strike of the regional Central Africa Shear Zone. This fracture set forms an integral part of the fracture network that give...

... geophysics elliptical velocity inversion brittleness azimuth URTeC anisotropy vector conjugate fracture orientation fracture orientation maximum horizontal stress strike-slip fault seismically fracture orientation interpretation anisotropy URTeC: 1906890 Integrated Interpretation...

.... flow in porous media multistage fracturing shale gas fracture complexity Upstream Oil & Gas stress interference complex reservoir Roussel horizontal stress stimulation pattern cumulative gas production SRV overlap zipper stimulation pattern maximum horizontal stress hydraulic...

... of Shell's Marcellus acreage to provide guidelines around how to optimally frac in faulted rock. Steeply dipping (70–90?) structural discontinuities, referred to as faults, that are parallel to the in-situ maximum horizontal stress (ENE-WSW) are avoided with frac stages by 75ft on each side, providing...

... orientation of the present day maximum horizontal stress, all wells should be orientated in a NW-SE direction to take advantage of any open fracture systems. As Pioneer s dataset has increased in this area we have come to question some of these ideas and, in some cases, have found these conventional wisdoms...

..., or subsequent minor exhumation. URTeC 1581112 Upstream Oil & Gas History plane Bulletin porosity basin Reservoir Characterization orientation horizontal stress burial history principal stress weakness Barnett shale maximum horizontal stress failure polygon stress history reservoir...