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Keywords: closure stress
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Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180244-MS
..., and this phenomenon has been neglected in most numerical models. This work investigates the impact of pressure dependent fracture apertures during the production process; fracture aperture is explicitly represented and the effect of closure stress is incorporated in a numerical simulation model. A Discrete Fracture...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-108139-MS
.... To calculate the in-situ stress profile, one must have an understanding of the mechanical rock properties and the pore pressure variations throughout the wellbore. Pore pressure can be measured in the permeable zones and in-situ stress can be calculated by the modeling of closure stress from pre-fracture...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, March 19–22, 1995
Paper Number: SPE-29598-MS
... of closure stress have failed to consistently verify the relationship between vertical and horizontal stress, so that additional calibrations are required. Alternatively, consideration of an anisotropic Poisson's ratio results in a different relationship between vertical and horizontal stress. A portion...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, March 6–8, 1989
Paper Number: SPE-18967-MS
... to 6550 bbls. This paper derives a closure stress profile and possible variations using these data and related field experience, and simulates the main fracture treatment using a three dimensional fracture simulator. The simulations suggest fracture width reduction (pinching) at the perforations because...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, March 6–8, 1989
Paper Number: SPE-19003-MS
... Abstract Both gas permeability and in situ closure stresses computed from log analysis are confirmed by pre-fracture well tests and analysis of fracture stimulation operations on the No. 3 Deep Seam 30-4 in Mesa County. Colorado, one of three wells in a Red Mountain tight gas sands project...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional Meeting, May 11–13, 1988
Paper Number: SPE-17541-MS
... conductivity data filter cake gal conductivity measurement permeability closure stress simulator mcdaniel gel filter cake proppant upstream oil & gas SPE Society of Petroleum Engineers SPE 17541 Accurate Design of Fracturing Treatment Requires Conductivity Measurements at Simulated Reservoir...
Proceedings Papers

Paper presented at the SPE/DOE Joint Symposium on Low Permeability Reservoirs, May 18–19, 1987
Paper Number: SPE-16453-MS
... the combined effects of temperature and closure stress for extended time periods. Since Cooke 1 first reported the drastic difference in long-term, high References and illustrations at end of paper. 515 temperature data and short-time, ambient temperature conductivity values, no investigator has dedicated...
Proceedings Papers

Paper presented at the SPE/DOE Joint Symposium on Low Permeability Reservoirs, May 18–19, 1987
Paper Number: SPE-16452-MS
... characteristics will be equally important, and in many cases, more critical than the kinetic parameters. Some of the formation parameters which will affect the development of fracture conductivity are the mineralogical composition, degree of homogeneity, hardness, and closure stress. Equipment has been developed...
Proceedings Papers

Paper presented at the SPE/DOE Joint Symposium on Low Permeability Reservoirs, May 18–19, 1987
Paper Number: SPE-16415-MS
... closure stress relationship for fracture proppants. Well testing and reservoir simulation of hydraulically fractured wells has determined that the insitu conductivity, in many cases, is significantly less than the laboratory determined conductivity. If fracture treatment designs do not incorporate...
Proceedings Papers

Paper presented at the SPE/DOE Low Permeability Gas Reservoirs Symposium, May 19–22, 1985
Paper Number: SPE-13855-MS
.... closure stress is modified to include the cost for each type of proppant. The result is a graph which compares the cost of each proppant per unit conductivity across a range of closure stresses. Such a graph is depicted in Figure 1. This graph includes proppant pack damage factors, but is also available...
Proceedings Papers

Paper presented at the SPE/DOE Low Permeability Gas Reservoirs Symposium, March 14–16, 1983
Paper Number: SPE-11633-MS
... and a fracture design program. Gas producing formations are simulated which exhibit permeabilities between 0.001 md and 0.1 md and closure stresses up to 9500 psi. In these simulations the second generation proppant and sintered bauxite yield essentially proppant and sintered bauxite yield essentially identical...
Proceedings Papers

Paper presented at the SPE/DOE Low Permeability Gas Reservoirs Symposium, March 14–16, 1983
Paper Number: SPE-11617-MS
... concentration production rate closure stress conductivity bottom hole upstream oil & gas SPE/DOE 11617 SPE/DOE Society 01 Petroleum Engineers U.S. Department of Energy A Method for Selection of Optimum Proppant in the Cotton Valley by H.C. Clark, Mitchell Energy Corp. Member SPE-AIME Copyright 1983...

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