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Keywords: sandstone
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Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180214-MS
... (for example, clay content), salinity, pH, Eh, microemulsion viscosity, crude oil, co-solvent and other variables. Some static adsorption and kinetic adsorption studies have been reported on sandstone, limestone, and permeable carbonate reservoirs, but few on ultra-lower permeable rocks, such as the Bakken...
Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180268-MS
... Abstract Heterogeneous rocks with broad pore size distributions, such as carbonates and clay-rich sandstones, often display widely varying behavior. The interaction of micro- and macro-porosity in these complex rocks makes them difficult both to understand and to characterize. Pore scale...
Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180218-MS
...% in the thermally mature (>1.4% Ro) shales and from 0.25 to 0.75 wt% in the siltstones. Measured porosities in both the shales and siltstones are typically 4.5 to 7.5% with low matrix permeabilities ranging from about 80 to 700 nanodarcies. Lying between the sandstones of the Frontier and Blair, the Baxter...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Petroleum Technology Conference, April 14–16, 2009
Paper Number: SPE-123031-MS
... fracturing Fluid Dynamics fracture closure pressure sandstone leak-off test society of petroleum engineers Upstream Oil & Gas permeability indicator tight sand reservoir pressure Wattenberg field gradient ISIP correlation reservoir property denver-julesburg basin permeability...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-106571-MS
... value sonic log porosity drillability Reservoir Characterization Upstream Oil & Gas optimizer ar compaction drilling data Onyia equation log analysis strength prediction sandstone field drilling data sonic travel time well logging correlation shale rock strength regression...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-107963-MS
... There is not a formal definition of "tight gas" and usage of the term varies considerably. Law and Curtis (2002) 17 defined low-permeability (tight) reservoirs as having permeabilities less than 0.1 millidarcies, In the United States, low-permeability sandstone reservoirs tend to be clean...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-107950-MS
...Introduction In tight gas sandstone the productivity of a well is sometimes quite different from that of a nearby well. Wells can also be very sensitive to small amounts of water, whether from an aquifer associated with the reservoir, from hydraulic fracturing or from other completion...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium and Exhibition, March 12–15, 2000
Paper Number: SPE-60321-MS
... estimates of pore pressure and permeability, and to optimize the perforation scheme for effective limited entry fracture treatment diversion. This paper describes the diagnostic fracture injection test methodology, summarizes the results, and provides illustrative examples of typical Mesaverde sandstone...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium and Exhibition, March 12–15, 2000
Paper Number: SPE-60291-MS
... fracturing reservoir fluid dynamics extension mayerhofer method pressure transient analysis upstream oil & gas fracture-tip extension fracture closure resistance mayerhofer normal leakoff type recession modified mayerhofer falloff spe 60291 sandstone Introduction Valkó...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium and Exhibition, March 12–15, 2000
Paper Number: SPE-60299-MS
.... More effective models for locating permeable zones have been created for fields within a large area extending from near the Canadian Rockies to Mexico. analog delta sand property colorado sandstone log response sedimentation plot porosity society of petroleum engineers relative...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium and Exhibition, March 12–15, 2000
Paper Number: SPE-60305-MS
... ). This paper presents the results and recommendations of a study carried out to determine the effects of diagenesis on the accuracy of nonlinear grain-size modelling in sandstones. The results of the study indicate that grain-size modelling in diagenetically modified formations is feasible. It characterises...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional Meeting, May 15–18, 1999
Paper Number: SPE-55626-MS
... Abstract A study of Successful Completion Practices has been conducted in the J Sandstone of the Wattenberg Field of the Denver Julesberg (DJ) Basin. The data gathered from six operators suggests that reservoir quality plays an important role in well production performance. However...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional Meeting, May 15–18, 1999
Paper Number: SPE-55971-MS
.... The lithologies analyzed consisted of sandstone and dolostone from eolian dune, shoreface, sandflat, and shallow marine shelf facies. Comparison of mini-permeameter measurements averaged over one-foot intervals with the plug permeability value showed that the mini-permeameter average permeability value was higher...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium, April 5–8, 1998
Paper Number: SPE-39925-MS
... Abstract Basal Colorado Channel sandstone reservoirs can be clay- bearing and highly water sensitive. This presents a technical challenge from reservoir performance and completion design standpoints. The sandstones are fine to medium grained mineralogically immature and chemically unstable...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium, April 5–8, 1998
Paper Number: SPE-39913-MS
... of a series of tight sandstones separated by shales over a gas column of up to 900 m. As the natural fractures seem at least in parts to intersect the shale barriers, vertical interconnection of sandstone layers is probable. The permeability of the sandstones ranges from 0.01 md to 0.1 md at porosities from 3...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium, April 5–8, 1998
Paper Number: SPE-39910-MS
... reservoir. However, if the parameters are different, then fracture storage is a function changing with distance from the wellbore. Application of these principles was tested on a known naturally fractured, sandstone reservoir in the Rocky Mountains. Analysis of this field example resulted in agreement...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional/Low-Permeability Reservoirs Symposium, April 5–8, 1998
Paper Number: SPE-39917-MS
... Abstract This paper identifies factors that control stress dependent permeability in tight gas sandstones of the Travis Peak formation in East Texas, and presents a procedure for prediction of in-situ permeability at any value of net effective stress. Petrophysical analysis of core samples...

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