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Keywords: viscosity
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Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175782-MS
... fluid reheals after exposure to high shear rates, which means that the crosslink forms and then breaks, only to form again. Along with reversibility of pH and temperature, these properties mainly control the viscosity of borate-cross-linked fluids under various conditions ( England and Parris 2011...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175726-MS
... viscosity and attained recovery, and (4) study the effect of initial oil saturation at the start of the ASP process on the oil recovery. Actual crude oil, formation brine, and low permeability carbonate reservoir samples are used to undertake this experimental study. Viscosity, pH, and Interfacial tension...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175786-MS
... viscosity gel with poor performance in terms of fluid leakoff and proppant transport. To achieve the desired performance, the polymer should be unaffected and crosslink bonds should be able to reheal. Rheology tests were performed using fluid formulations containing GS-SF and GS-S at 280-320°F. During the...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175762-MS
... Associative polymer combined with surfactant has been studied as fracturing fluids ( Gupta et al., 2011 , Gaillard et al., 2013 ). However, the conventional surfactant forming spherical micelle has narrow range in enhancing the viscosity and also not very efficient in enhancing the overall...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175803-MS
... conditions and has comparable properties to guar-borate fluids with respect to proppant transport capacity and rheological characteristics (e.g. viscosity building and breaking behaviors). This paper presents the first successful implementation of this novel fluid system in the BRN field in Algeria for...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164626-MS
... elemental sulfur Upstream Oil & Gas viscosity porosity sour gas Sulfur sulfur adsorption Deposition of a liquid sulfur phase in the reservoir will not significantly plug the pores in the formation if it was a mobile phase. But if the sulfur was deposited as a solid phase, it will result in...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164686-MS
... & Gas pressure trend asl sand reservoir Drillstem Testing viscosity kareem sand Asl reservoir pressure value drillstem/well testing producer society of petroleum engineers permeability pressure performance spe 164686 mobility Kareem reservoir accumulation BOPD GUPCO is one of...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164656-MS
... ). The desired release rate can be achieved by choosing the appropriate composition of polymer blend and breaker loading. The rheology testing was conducted to ensure that sufficient viscosity was maintained to place the proppant and that a controlled and complete fracture would occur. Fig. 2...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164722-MS
... Abstract Although heavy oil producers in Block 6, Sudan have been difficult to exploit with gas lift because crude oil has 19 °API, the reservoir pressure was low, and surface dead oil viscosity ranged from 30,000 to 40,000 cp. New advances have recently been made to increase oil production...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164702-MS
... Abstract Issran field is located 200 km east of Cairo-Egypt, producing from fractured dolomite reservoir 8-12 API oil gravity. The reservoir depth ranges from 1000-2000 ft, with BHP 300-500 psi and BHT of 120-200 F. The heavy oil viscosity is 4000 cp at standard conditions and the reservoir...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164733-MS
... dynamic properties of the reservoir. In reality, small volume pressure test derived mobilities and resulting permeabilities are affected by a number of factors, namely: Mechanical skin caused by drilling damage and fines migration in the near wellbore. Variation of viscosity of the fluid in the...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164723-MS
... steam injection aquifer injection permeability light oil reservoir heavy oil reservoir thermodynamic reservoir simulation flank viscosity Abstract Thermal oil recovery methods have been widely used not only in heavy oil reservoirs, but also in light oil reservoir with Waterflooding to...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-149774-MS
... contingency plan upstream oil & gas viscosity oil spill risk assessment scenario gulf environmental condition water content quantity oil spill modeling & simulation oil spill contingency plan dispersant spe 149774 society of petroleum engineers Generally, many petroleum industrial...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-150650-MS
... compressibilities, 14 dead oil viscosities, 9 saturated oil viscosities, 10 under saturated oil viscosities, 12 under-saturated densities, 2 total formation volume factors and 2 saturated density correlations. Based on this study, guidelines for selecting an appropriate correlation for PVT oil properties are...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-150913-MS
... polymers solutions behave when flowing in the porous media. Following are some of the interactions that affect polymer performance: Figure 1 Rheology of shear-thinning fluids. where µ is steady shear viscosity, µ0 is shear viscosity for the lower Newtonian region, µ ∞ is shear viscosity...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-151642-MS
..., thereby saving the time and rigors associated with laboratory experiments. drilling fluid chemistry drilling fluid formulation plastic viscosity drilling fluids and materials engineering mud weight surface mud weight drilling fluid selection and formulation upstream oil & gas viscosity...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-151667-MS
... viscosity force. According to force dominancy, three different scenarios are proposed. In each scenario synthetic fine grid model represents actual fracture distribution. And upscaling parameters of each equivalent dual medium model are determined by matching the results of the fine grid model simulation...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-151402-MS
... investigated. Results show that flow development depends on the core to outer diameters ratio, oil viscosity, flow velocity, and water loading ratio. As oil's viscosity increases, flow structure develops faster towards fully developed one. Fully developed velocity profiles show uniform distribution in oil's...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-151952-MS
... flooding increases water viscosity which controls water mobility thus improving the sweep efficiency, thus increasing the recovery factor. Many successful polymer projects have increased recoveries of 3-10%. This paper presents a case study to investigate the effectiveness of polymer and surfactant flood...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-152040-MS
... viscosity properties to generate fracture geometry in the subterranean rock and transport solid proppants to hold the fracture open. The extent of crosslinking a polymeric gel can significantly contribute to success or failure of a fracturing treatment. Crosslinking agents used in commercial fracturing...

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