... to mimic formation damage during CO 2 injection in saline aquifers, and (2) critically assessing the impact and effectiveness of acetic acid as a mitigation fluid under different injection scenarios through core-flooding experiments. The results were compared with freshwater and low salinity water (LSW...

... drilling fluid chemistry acidizing formic acid acetic acid citric acid operation application filter cake carbonate dissolution rate precursor lactic acid flowline corrosion reaction agent pipeline corrosion corrosion inhibition reservoir characterization scale remediation drilling fluid...

... stem valve formate ester drilling fluid selection and formulation upstream oil & gas filter cake removal efficiency removal efficiency drilling fluid property hcl calcium carbonate stem valve filter cake solubility ceramic disk mudcake drilling fluids and materials acetic acid...

... operation. Adoption of the new formulation has facilitated a simpler, faster displacement operation and made it easier to test various techniques that are offered for filtercake clean up. Treatments, involving acetic acid released in situ, enzymes, sequestering agents, etc., provided questionable results...

... effective period nozzle stimulation water day upstream oil & gas oil day producer acid treatment hcl acid coiled tubing spe 126311 sagd application society of petroleum engineers reservoir husky energy acetic acid Introduction SAGD oil production is conducted in Husky’s...

... with formate brine at room temperature. However, these acids were compatible with formate brine at temperatures greater than 122°F. Mixing of these acids with the formate in the field may cause operational problems. Only acetic acid and enzymes were compatible with formate brine. A formula was developed...

... acid emulsion case study mol cm society knowledge management operator acetic acid Introduction At the end of the 20'th century one of the biggest oil and gas field was discovered on the West – North part of Poland. This reservoir called BMB is located in carbonate formation at average...

... formulation drilling fluids and materials reservoir surveillance production monitoring conference production control system precursor drilling fluid chemistry seawater petroleum engineer khalij acetic acid Introduction The Al Khalij offshore oilfield is in the northern part of the Qatar...

... sandstone drilling fluids and materials drilling fluid property acetic acid hydrate remediation acid treatment production chemistry paraffin remediation bopd scale remediation scale inhibition spe 86519 wax remediation mineralogy oilfield chemistry damage mechanism asphaltene inhibition...

... a misconception we have about sandstone matrix acidizing with mud acid and discusses the impact on matrix acidizing models and well performance results. Core flow tests were performed using HCl and acetic acid preflushes to HCl-HF systems to determine their effect on Jauf cores at 300°F. Acetic acid was used...

... inhibitors contain formic acid while one inhibitor intensifier contains both formic and acetic acids. Formic acid concentration in flow back samples from high temperature gas wells was higher than 85% of the injected value in most of the treatments. In concentrated HCl at 250°F, the amount of formic...

... allowed (the rate to avoid fracturing formation). In this case, weak acids, such as acetic acid, are alternative fluids to stimulate the wells. In our previous study, a theoretical model showed that under the same condition, the optimal injection rate for weak acids is relatively lower than the one...

... fields over the last few years as stimulation fluids and as acid additives. Citric and acetic acids are frequently used in acid treatments as iron control agents. The following conclusions are made: A method for the simultaneous measurement of acetic acid, citric acid and formic acid was developed...

... Abstract A new type of experimental procedure was used to study iron control chemicals (citric acid, nitrilotriacetic acid and acetic acid) in acidizing treatments at temperatures from 25 to 95°C. This procedure gives plots of iron in solution versus equilibrium pH, while previous work has...

... logs prior to the acid job were excellent. This paper presents a series of lab experiments showing that acetic acid, alone or mixed with HF, dissolves much less cement than HCl and HC1-HF mixtures with the same carbonate dissolving power. The reaction of acetic acid with cement fonns a protective skin...

.... simanjuntak permeability structural geology matrix chlorite spe 27405 esem observation dissolution acidizing procedure precipitate flow in porous media microscope core flood test core plug fluid dynamics acetic acid upstream oil & gas reservoir characterization acid treatment silicate...

... to be dependent upon HCl strength and temperature. A third series of tests evaluated the effects of weak HCl, formic, and acetic acid. Diffraction studies, coupled with fluid analyses, revealed that the mechanism of acid attack is the leaching of ions from the matrix of chlorite clay. By-products of the acid...

... sequestering sulfur acetic acid iron mining mineral metals & mining degradation INTRODUCTION The amount of iron that needs to be sequestered in an acidizing operation is difficult to accurately predict because of the influence of variables such as those listed below. Condition...