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Water, polyglycol, NaCl, KCl, potassium hydroxide, soda ash, sodium bicarbonate, critic acid, polyanionic cellulose (PAC), partially hydrolyzed polyacrylamide (PHPA), and barite. WBM for HPHT was formulated and optimized for rheological properties. Polyglycol in WBM enhanced the thermal stability of the mud.
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Polyacrylamide Products – Youju chemical -Polyacrylamide. 1.Product characteristics. Anionic /cationic emulsion polyacrylamide is one kind of high efficiency liquid flocculants with high concentration ,polymerized in the oil by using water-in-oil emulsion advanced technology and W/O emulsifer, with high conversion rate ,high molecular weight , high stability ,multi-function, instant etc.
In this paper, a statistical analysis on the thermal gelation of well characterized reactants namely partially hydrolysed polyacrylamide (PHPA) (Mw = 5.1 million Daltons and hydrolysis degree = 6%
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Partially Hydraulised Polyacrylamide-PHPA is an encapsulating polymer that is normally used in conjunction with potassium chloride to provide a high degree of shale inhibition. The polymer is anionic, attaches itself to the positively charged edges of clay platelets, thus binding the particles together.
Fig. 12 shows that shale cores swell in partially hydrolyzed polyacrylamide (PHPA) and glycol fluid (low inhibitive) and shrink in silicate-based systems (Ladva et al., 2005). Download : Download high-res image (191KB) Download : Download full-size image; Fig. 12. Free swelling of Oxford shale versus time in various drilling fluids (Ladva et al
The experiments of the jar test showed that Cicer arietinum seed at dose 1.5 mg/L and the best pH and oil concentration can remove 95.2% of chemical oxygen demand (COD), 83.8% oil content and 98
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Polymers are added in the development of both O/W and W/O emulsion based drilling fluids containing diesel oil to maintain rheological properties and control the filtration losses. Some organic polymers such as guar gum, partially hydrolyzed polyacrylamide (PHPA) are added to enhance the rheological properties of the fluid systems (34-36).
Superparamagnetic nanoparticles (SPNs) have been considered as one of the most studied nanomaterials for subsurface applications, including in enhanced oil recovery (EOR), due to their unique physicochemical properties. However, a comprehensive understanding of the effect of surface functionalization on the ability of the nanoparticles to improve secondary and tertiary oil recoveries remains
One ton of commercial clay can provide 15 cp of viscositysoda ash, sodium bicarbonate, critic acid, polyanionic cellulose (PAC), partially hydrolyzed polyacrylamide (PHPA), and barite. WBM for HPHT was formulated and optimized for rheological properties.0.8 lb NA 14 lb and 1.5 lb NA
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