... spectra iron sulfide scale formulation dissolution pipeline corrosion thioglycolate ammonium salt iron sulfide scale sample visible spectra materials and corrosion dissolver gas well ammonium chloride spectra pyrite remediation of hydrates THP acid reaction citrate-based dissolver...

... gases. One of the promising new heavy-oil recovery approaches is generating steam with nitrogen gas, in-situ, using thermochemical reaction to reduce oil viscosity, improve the mobility ratio and enhance the heavy-oil displacement. Steam and nitrogen are generated, in-situ, by injecting exothermic...

...). Coupled with geochemical reaction and equation of state (EOS) modeling, this study proposes compositional simulation of the CLSWF process. In a comparison to LSWF to quantify the synergetic effects, CLSWF introduces enhanced wettability modification effect due to geochemical reactions of ion-exchange...

... Abstract Emulsified acid has proven to be very effective in both matrix acidizing and fracturing treatments. It has become the preferred stimulation acid system due to the significant reduction in tubing corrosion compared to straight acids and due to the reaction retardation, which allows...

.... drilling fluid chemistry real time system drilling fluid selection and formulation drilling fluid property production enhancement acetic acid lab testing application mineral downhole intervention acidizing compatibility test remove sandstone formation damage precipitate reaction structural...

... reactant fluid and then sets harder under a wide range of temperatures. Comprehensive and systematic tests were conducted on the new CS-LCM to determine the speed of the reaction at an optimized interval of time upon interaction with the reactant. Testing performed on the new CS-LCM included evaluating...

... the optimal well locations in a heavy oil reservoir under production using a novel recovery process, in which steam is generated, in-situ, using thermochemical reactions. Self-adaptive differential evolution (SaDE) and particle swarm optimization (PSO) methods are used as the global optimizer to find...

... impurities. Experimental Methods Materials Corrosion inhibitors used with HCl typically act to reduce corrosion by preventing the dissociation of H + to the surface by forming a layer, which inhibits the cathodic/anodic reactions, or by poisoning the production of H 2 ( Rostami and Nasr-El-Din 2009...

..., the filter cake should be removed after the drilling operations. Uniformly filter cake removal cannot be performed using live acids because the acids have rapid reaction rate, Price-Smith et al. (1998) . Large volume of acids will be required to remove the filter cake in long horizontal wells, Parlar...

...+ and SO4 -2 on the carbonate rock surface is dependent on the relative concentration and equilibrium. An increase in pH causes a reaction with the acidic components of the oil which improves reservoir in-situ surfactants. This study describes LSWF five spots simulation model with 4 producers and one...

... sandstone formations. Inductively coupled plasma (ICP) was used to analyze the collected effluents to understand the mechanism of seawater and potassium carbonate effect on the reaction of DTPA with sandstone rocks. The results showed good compatibility between DTPA seawater based fluids and Bandera...

... and/or secondary recovery process in matured oil field. Next, methane-producing microbes (so-called methanogens) are used to generate methane from the produced acetate, or hydrogen and carbon dioxide. The reactions of microbial conversion of crude oil (assuming as alkanes) to methane are estimated as follows...

... fluid property drilling fluid selection and formulation rheological property casing and cementing cca pressure epoxy resin resin system mechanical property reaction drilling fluid formulation zonal isolation remedial operation Remedial Job cement property drilling fluids and materials...

... management & disposal chemical treatment reaction thermal analysis clay mineral illite Wellbore Design information calcite composition characterization derivative curve mineral Introduction In drilling operation mud selection plays important technical and economical roles. Thus...

... Arabia using Reactive Transport Modeling (RTM). RTM simulates coupled multiphase fluid flow and chemical reactions, and has the capability of predicting time-dependent mineral scales formation and associated reservoir quality deterioration. Formation of calcium sulfate scale in the reservoir and near...

.... The resulting interactions involve the geochemical reactions like aqueous, ion exchange and rate controlled reactions in addition to physiochemical reactions like clay swelling. Akrad et al. (2011) investigated the impact of these interactions on reservoir characteristics experimentally, where they reported...

...Calcite/Solution Kinetics Calcite/Solution Bulk Equilibria The chemistry of calcite-water equilibrium involves numerous aqueous species. Fortunately, considerable information is available ( Stumm and Morgan, 1996 ). Appendix B lists the currently accepted species reactions...

... and the lessons learned will be shared. The geochem plan is deemed robust and will help with understanding, tracking, monitoring and predicting the geo-sequestration process. Saudi Arabia government Modeling & Simulation soil gas geochemical monitoring plan sequestration project reaction enhanced...

... (SRV) around wellbore and fracture area, and therefore, improve unconventional gas production. The method entails triggering an exothermic chemical reaction in-situ to generate heat, gas and localized pressure sufficient to create fractures around the wellbore. In controlled experiment, chemical...

... that are required to break the rock open while using a viscous pad. The fracture is then kept open by adding gelled or emulsified acid to create uneven etches on the surface of the fracture. Pre-job acid fracturing treatment fluids’ reaction and compatibility analysis in the laboratory are crucial...