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Keywords: initiation pressure
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1592
... difference amplitude breakdown pressure principal stress initiation pressure extension pressure Injection Rate Injection Rate Influence 1. INTRODUCTION The hydraulic fracturing is an important technology of oil and gas development. However, the high hydraulic fracturing accounts a large proportion...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1524
... different initiation pressure, but the initiation direction is roughly similar to be across the wellbore. The initiation pressure of different rocks is positively correlated with the strength of rocks. And the shape of crack is more complicated and the extension direction is more diverse as the increase...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2020
... ABSTRACT: This paper presents an analytical model to calculate the hydraulic fracture initiation pressure from an arbitrarily oriented wellbore in an elastic medium with and without perforations and investigates the competition between axial and transverse fractures. The model predicts...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0518
... pressure and the corresponding length of the initial fracture. The initiation pressure with size effects is greater than, or equal to, the one without them. We quantify size effects for a range of laboratory and field conditions. Using typical borehole sizes and tensile strength over fracture toughness...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-047
... acoustic emission cyclic injection amplitude perforation initiation pressure fracture injection pressure curve Injection Rate wellbore 1. INTRODUCTION With the large-scale development of unconventional reservoirs such as tight oil and gas, coal-bed gas and shale gas, the hydraulic fracturing...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0585
... results show that, due to strength weakening from CO 2 adsorbed into the nano-scale fracture surface, the magnitude of fracture initiation pressure of SC-CO 2 fracturing is lower than that of water-based fracturing. It is of interest that fracture propagation velocity of SC-CO 2 fracturing is two order...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-719
... or the oriented perforations. They evaluate the plastic yielding and the stresses in these areas in order to determine the location and the pressure at which a fracture can be initiated or no tensile fracturing is possible at all due to plasticity. fracture initiation pressure fracture horizontal well...
Proceedings Papers

Paper presented at the The 35th U.S. Symposium on Rock Mechanics (USRMS), June 5–7, 1995
Paper Number: ARMA-95-0287
...). wellbore integrity Wellbore Design communication hydraulic fracturing Upstream Oil & Gas borehole pressurization Directional Drilling wellbore pressurization fracture initiation pressure horizontal wellbore fracture initiation fracture drilling operation sample hfh0 prediction tensile...

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