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Keywords: overburden stress
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187408-MS
... these tests and background information on handling the cores are included. overburden stress uc value participant different test facility strength histogram plot plug test facility Completion Installation and Operations correlation porosity testing facility Standard Deviation Upstream Oil...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181624-MS
... & Gas overburden stress aperture natural fracture fracture network reservoir simulation nonuniform aperture pressure graph different overburden stress production rate fracture hydraulic fracturing fracture aperture nonuniform fracture aperture cumulative oil production reservoir aperture...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170856-MS
... horizontal stress minimum horizontal stress coefficient stress orientation Upstream Oil & Gas overburden stress prediction maximum horizontal stress fault reactivation pressure log analysis equation frictional fault plane Magnitude fault critical reactivation pressure critical reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-145686-MS
...-stress method was adopted for fracture-gradient prediction because it is applicable in the case where a large wellbore fracture exists. By assuming that one of the principal-stress axes is vertical, the overburden stress derived from integrated density logs corresponds to another principal stress...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-134142-MS
... hydraulic fracturing overburden stress closure stress fracture height reservoir compressibility fracture Introduction In the 1970s fracture stimulation treatments were typically conducted at low rates (~12 BPM) to limit fracture height growth. The early belief was that fracture height...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124227-MS
... with a view toward optimizing completion costs. hydraulic fracturing well logging strength overburden stress correlation organic matter log analysis containment natural fracture Reservoir Characterization Upstream Oil & Gas pore pressure micromechanical model Poisson lithology...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-103079-MS
... magnitude using the three shear moduli outside the near-wellbore altered annulus together with the Mechanical Earth Model that provides the overburden stress, pore pressure, and minimum horizontal stress as a function of depth. The maximum and minimum horizontal stresses can also be obtained from a multi...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102498-MS
... Water activity is an important parameter in controlling shale/mud interactions. In order to optimize the salinity of the non-aqueous fluids, we need to be familiar with the water activity of both shale formations and drilling fluids firstly. where σ v , σ v ', P p are total overburden stress...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 29–October 2, 2002
Paper Number: SPE-77535-MS
... of stress-dependent permeability. A rigorous mathematical model that couples geo-mechanical and fluid-flow aspects is used to correlate productivity reductions with time. The reduction in productivity index (PI) is expressed as a function of operating variables such as overburden stress, mechanical...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63233-MS
... injection of cross-linked guar and visco-elastic surfactant into 3,000 md sand samples subjected to different overburden stresses. The following is a summary of the findings: The experimental data suggest that "fracture" propagation in unconsolidated sand is primarily a result of shear failure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1991
Paper Number: SPE-22755-MS
... on the outer flanks of the structure. Total overburden stress ranged from 61 MPa on the crest to 65 MPa on the outer flanks. Abstract The Ekofisk Field is a naturally-fractured chalk reservoir in the Norwegian Sector of the North Sea that has been producing hydrocarbons for over 20 years. In situ...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 2–5, 1988
Paper Number: SPE-18023-MS
... in-situ stress reservoir characterization overburden stress reservoir geomechanics annular pressure drilling principal stress stress component inclination procedure azimuth information equation wellbore design borehole wellbore integrity well control hydraulic fracturing inversion...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1987
Paper Number: SPE-16805-MS
... measurements at overburden stress better define permeability anisotropy and permeability reduction from ambient to reservoir conditions. horizontal permeability fracture society of petroleum engineers fluid dynamics new development permeability reduction permeability fracture porosity orientation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1987
Paper Number: SPE-16666-MS
... earth stresses rather than empirical fluid pressure relationships. Overburden stress is an integrated bulk density log derived from porosity, (ϕ) and V shale . Effective vertical stress is calculated from porosity, (ϕ) for each lithology (V shale ) using the Rubey & Hubbert (1959) relationship...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–26, 1979
Paper Number: SPE-8402-MS
... of the samples were made to show any changes in particle-size distribution. While the field-sampling program was underway, fracture conductivity testing was done to study the effect particle-size distribution has on sand permeability at increased overburden stresses. permeability at increased overburden stresses...

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