... sequestration numerical model to simulate the geochemical reactions of injecting CO 2 into a saline aquifer. The model includes three main geochemical reactions: CO 2 dissolution in water, dissolution of formation minerals, and precipitation of carbonate minerals. The first reaction results in forming...

... asphaltene inhibition application reaction agent Symposium reservoir spe european formation damage conference GLDA Frenier EDTA international symposium spe international symposium carbonate stability constant dissolution Chemistry Chelating agents are molecules that contain two or more...

... Because dry-gas is being treated, and H 2 S molecules are fully submerged in triazine molecules, the overall reaction reflects a high efficiency. The scavenger chemical used in a bubble tower is identical to that used for continuous injection applications. After use, the non-reusable scavenger...

... Abstract Regular HCl has been used as the main acidizing fluid. At high temperatures, rapid spending of the acid with carbonates prevents deeper penetration of the acid into the formations. Alternatives such as acetic and formic acid have lent themselves to retarded reaction rates, low...

... the solubility of various clay minerals (kaolinite, bentonite, chlorite, and illite) as a function of time, and temperature. The Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) techniques were used to identify the reaction products. The concentrations of key cations in the supernatant were...

..., acid rock reaction experiments of gelled acid and emulsified acid were accomplished to get full understanding the kinetics of acid reaction with complex lithology cores. Acid conductivity experiments were conducted with a unique conductivity instrument using samples designed to simulate deep...

... increased gradually and then more rapidly. At the time of the explosion, a rapid rise in the vapor phase temperature accompanied by a sudden increase in the reactor pressure was observed. This behavior indicates that the explosion was triggered by liquid phase oxidation reactions but that the sudden energy...

... characteristics that affect the extent of reaction and other important parameters that ultimately impact the overall cost of treatment. Because of lower capital and operating costs, continuous inline injection is most often the application method of choice. Because the systems being treated are highly dynamic...

... Abstract The standard description of HF-acidizing chemistry clearly demonstrates a primary and secondary reaction of HF with alumino-silicates. 1 Field experience has taught our industry that possible precipitation during the secondary reaction can ad-versely affect treatment success, 2...

... Abstract Hydrochloric acid solutions were reacted with limestone core plugs using an annular flow reactor at acid-fracturing conditions. The obtained reaction rates were correlated with theory using a correlation that was recently verified to be suitable for correlating HCI reaction rate...

... with single-membered galactopyranosyl units occurring as side branches. The galactopyranosyl side chains are 1,6-linked to the backbone in the mannose/galactose ratio of about 3:2. Propylene oxide is reacted with guar to form hydroxypropylguar (HPG) as the reaction product. The hydroxypropylguar material can...

... for operators in dealing with prevention and treatment procedures. The computer model simulates reactive flow through porous media since injection of an incompatible fluid can induce numerous chemical reactions in a reservoir. The model uses the Gibbs free energy minimization technique to calculate chemical...

... Abstract A new radial model of in situ gelation of Polyacrylamide by Cr(III) produced by a redox reaction has been developed based on reaction kinetics describing the crosslinking and aggregation in the gelling solution, coupled with filtration equations governing the deposition of polymer...

... be effectively treated. Reaction byproducts are completely soluble and stable, there are no stream upsets, and no acrolein residuals are detected downstream. society of petroleum engineers hydrogen sulfide scavenger production control concentration production chemistry multiphase production pipeline...

... squeeze laboratory sandstone experiment apparatus upstream oil & gas production chemistry equilibrium reaction calcium concentration porosity oilfield chemistry equation ofphosphonate transport equation completion installation and operations adsorption dissolution brine phosphonate...

... of the set product are reduced, both desirous properties in a carbon dioxide (CO 2 ) environment. slurry hydration cement formulation composition ibm gal silica fume compressive strength upstream oil & gas oilwell cement reaction co 2 csh application surface area casing and cementing...

... penetration distance temperature profile upstream oil & gas acid conductivity hydraulic fracturing viscous preflush reactivity live acid reaction fracture laboratory convection simulation preflush wellbore INTRODUCTION The proper design of any stimulation treatment should be based...

..., treatment design, case histories and results will he discussed. hydrocarbon deposit spe 16215 situ solution mcspadden chemical system emulsion situ emulsion fluid level society of petroleum engineers upstream oil & gas reaction flow assurance lpb surface equipment cleanup wellhead...

... equipment was improved, acid was injected at higher rates and pressures, and consequently larger volumes were used. At this time, acid reaction time, fluid efficiency and pump rate were used in designing acid stimulation treatments. For years, these factors were used, and are still being used, to calculate...

... and mass transfer analysis of this low temperature oxidation situation wherein chemical reaction is also present. The mathematical approach approximates field conditions by using a radial model and determines temperature and oxygen concentrations as a function of radius and time. From the study, it can...