... to their inherent thermal stability and effectiveness against water sensitive formations. In addition, another highly desired property of such drilling fluids is minimal sensitivity of the fluid flow properties for a wide range of application temperatures, known as flat-rheology behavior. We have developed four...

... some shortcomings. The type and quality of the emulsified acid was assessed through conductivity measurements and drop test. Thermal stability of the system was monitored as a function of time through the use of pressure tubes and a preheated oil bath at 300°F. Lumisizer and Turbiscan were used...

... what conditions and applications usage of resin systems is appropriate. Upstream Oil & Gas information hardener rate constant casing and cementing thermal stability application arrhenius rate law stability reaction degradation rate isothermal degradation resin system resin...

.... The introduction of carboxymethyl groups along the backbone of cellulose turns a ubiquitous, but insoluble, material into a water-soluble product capable of providing filtration control and viscosity to water-based fluids. Similarly, thermal stability of starches can be improved by the covalent cross-linking...

... of hydrates inhibitor water management oilfield chemistry scale inhibition Time Profile sulphide scale scale remediation Production Chemistry Upstream Oil & Gas fe 2 chemical 3 sem edx analysis Hydrate Remediation conventional scale inhibitor high temperature scotland thermal stability...

... formulation provides reliable thermal stability that can function in extreme high temperature wells, while preserving the benefits of HP water-based drilling fluids. drilling fluids and materials thermal stability water-based drilling fluid filtration control agent drilling fluid property...

... conducted to test thermal stability of scale inhibitors, little work has been devoted to study the thermodynamics/kinetics of thermal degradation of scale inhibitors. In this work a novel and efficient testing approach based on inhibition kinetics has been developed and successfully applied to determine...

..., NVP) leads to an increase of its rigidity, hence enhancing its shear stability. However, these polymers remain highly shear sensitive in comparison to the rodlike Xanthan gum. In this paper shear and thermal stability studies of different microgels are reported. Microgels are micrometric hydrophilic...

... for their short and medium-term thermal stability at 180 and 200 °C. The primary application of this data is for downhole injection and squeeze treatments prior to adsorption. Inhibitor chemical types include sulfonated polycarboxylic acid (SPCA), fluorescent tagged sulfonated polycarboxylic acid (FSPCA...

... conditions; (2) solubility of barite at a temperature up to 200°C and pressure up to 20,000 psi; and (3) scale control and inhibitor selection for deepwater oil and gas production at ultra-HTHP conditions. Specifically, the performance and thermal stability of some common scale inhibitors at the high...

... (viscosifiers) for water-based HTHP drilling fluids. The leading polymer candidate was shown to be an effective viscosifier, with excellent salt-tolerance and thermal stability compared to conventional viscosifiers used in water-based drilling fluids. This paper presents the basic characteristics of the newly...

... times and acceptable thermal stability. This paper presents the successful field implementation of an organically crosslinked polymer (OCP) for high-temperature applications in southern Mexico. The OCP system is based on a copolymer of acrylamide and t-butyl acrylate (PAtBA) crosslinked...

...), (b) limit permeability to water at temperatures up to 375°F in sandpack flow experiments, and (c) provide long-term thermal stability in sandpack flow experiments at elevated temperature (up to one-year study). A commercially available polymer system that has been successfully used in field...

... reservoirs, because the solutions properties change when the degree of hydrolysis of the polymer increases and, in a media of high salinity and water hardness, the precipitation of the polymer may occur. To improve the thermal stability different copolymers have been prepared. The comonomers used...

... in a dry gas well treatment. flow in porous media fluid dynamics concentration polymer adsorption static adsorption backbone thermal stability adsorption spe 80202 permeability mrt upstream oil & gas field application coreflood hydrolysis stability polyacrylamide reduction...

... are presented, showing diutan's friction reduction properties. viscosity astm sea water shear rate xanthan gum concentration diutan stability drilling fluid formulation thermal stability navarrete rheology coil-tubing fluid xanthan drilling fluid property drilling fluids and materials...

... Abstract Following an earlier paper (SPE 37274, 1997), 1 we have continued to investigate the thermal stability of scale inhibitors for application in high pressure/high temperature (HP/HT) reservoirs. HP/HT reservoirs are currently under development in the North Sea and are characterised...

... the thermal stability of the fluid. proppant continuous-mix gelled oil concentration hydraulic fracturing new complexation chemistry provide fracturing materials Upstream Oil & Gas viscosity phosphate ester hydrocarbon breaker 1 thermal stability spe 37227 fracturing fluid agent...

... prepared to evaluate gelation of the polymers and thermal stability of the gels under hostile environmental conditions. The experimental monomer was obtained using commercially available chemicals by a simple synthetic route. Gels of high thermal stability have been revealed with polymer concentrations...

... in order to prevent mineral scale deposition within the tubulars or in topside equipment. However, in such harsh HP/HT environments, the currently used polymer and phosphonate scale inhibitor chemistries may not be appropriate due to a combination of factors including thermal stability and brine...