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Keywords: concentration
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Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175718-MS
... this information contributes to our understanding of the risk profile that these types of agglomerated materials present in produced water re-injection and how that risk profile may be developed and analysed in the future. separation and treating concentration risk profile Upstream Oil & Gas...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175726-MS
... for chemical EOR processes, (2) investigate the feasibility of Polymer flood (P), Alkaline/Polymer (AP), Surfactant/Polymer (SP), and Alkaline/Surfactant/Polymer(ASP) processes in low permeability carbonate reservoirs, (3) study the effect of using high concentration of surfactant in the ASP slug on oil...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175728-MS
... of oil-based filter cake. Berea sandstone cores with an average porosity of 18 vol% and an average permeability of 50 md were used. CT scan, XRD, SEM, and chemical analysis were used to examine the reaction characteristics of different concentrations of acid with ilmenite oil-based filter cake. Coreflood...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175803-MS
... & Gas concentration lbm Mgal gel BRN field society of petroleum engineers wellbore Introduction Hydraulic fracture stimulation has been a very important method for increasing well production and for delivering wells that produce hydrocarbons at economic rates. A commonly accepted practice...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175786-MS
... it performs well, several operators seek sulfur-free stabilizers that can perform equivalent to sulfur-based compounds. This paper describes a sulfur-free gel stabilizer developed for enhancing the stability of fracturing fluid, allowing a lower concentration of gelling agent. This gel stabilizer is sulfur...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175832-MS
... (15 wt. %) and various spent acid concentrations (12.5, 10 and 7.5 wt. %). A customized rotating disk apparatus was used to obtain the reaction kinetics data at pressure conditions of 1000 and 3000 psi at various disk rotational speeds (250 – 1250 rpm) at 150 °F. Samples of the reacted acid were...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175833-MS
... using the aging cell with mud acid (3 wt% HF, 12 wt% HCl) up to 300°F. The effects of temperature, soaking time, and static and dynamic conditions were examined. The supernatant of solubility tests was analyzed to measure total silicon concentrations using ICP-ES. The proppant was sieved before...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175806-MS
... are discussed. Upstream Oil & Gas diameter mechanism enhanced recovery surface area concentration pore throat porous media nanofluid wettability alteration injection Oil Recovery retention reservoir permeability application nanoparticle enhanced oil recovery Introduction...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175827-MS
... function, may impact significantly the outcome of the acid treatment either positively or negatively. The objective of this study is to examine the effect of the type and concentration of several additives, which are currently in-use in the oilfield, on the calcite dissolution rate with HCl using...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175880-MS
... material unconfined compressive strength RPM basalt diamond-impregnated bit lower basalt series offshore bit selection durability ROP turbine society of petroleum engineers rotation speed rock strength concentration faroe islands cutter Introduction Block 6104/21 is situated...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164656-MS
... conditions. The dynamic rheology of fracturing fluids was also studied as a function of encapsulated breaker concentration in temperatures up to 275°F. The results derived from this investigation are of significant importance to the oilfield industry. fracturing materials Upstream Oil & Gas...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164634-MS
... Abstract Scale deposition is one of the most serious oilfield problems when two incompatible waters interact chemically and precipitate minerals. Typical examples are sea water, with high concentration of sulfate ions and formation waters with high concentrations of calcium, barium...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164595-MS
... A lot of lab experiments, numerical simulation study and field tests have indicated that, besides of reservoirs properties, the injection parameters of polymer solution, such as molecular weight, concentration, volume and injection rate, are dominant influential factors to displacement effect [4...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164649-MS
... background of fracture technology applications in Italy. The objectives were concentrated on the reserves final recovery of the principal layers and assessment of potential thin layers that has never produce before, which entail the use of technologies state-of-the-art for drilling, completions, stimulation...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164617-MS
... management & disposal drilling fluid formulation LCM particle composition drilling fluid chemistry tapered slot stress response rheology op ii fluid system particle fiber lcm Magnitude drilling fluid property Upstream Oil & Gas concentration NAF PPA non-aqueous drilling fluid...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164669-MS
... a significant effect on reducing the silica dissolution amount and more reduction was observed as the PAA concentration was increased. In the case of 60,000 ppm brine salinity, the silica dissolution ratio was reduced from 16% to 5.3% due to the presence of 250 mg/l of PPA. This is attributed to the reaction...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164748-MS
... was modified to qualitatively compare the swelling behaviour of different materials under different temperatures and retarder concentrations. A polyacrylamide-based swelling material was found to be sensitive to both temperature and retarder concentration. A newly sourced, potentially reservoir-friendly...

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