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Keywords: dissolution
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Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199284-MS
... most notable volume reduction occurred when nonoptimal flow regimes were used. At flow rates of 1 mL/min, the formulated HCl acid fluid provides more than a five-fold PV bt reduction under similar conditions. More importantly, core face dissolution, characterized by computed tomography (CT) imaging...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199262-MS
... Abstract Matrix acidizing of carbonate formations has been widely used as a practical stimulation technique to improve well performance near the wellbore. The principle of a matrix acidizing treatment is to create wormholes by the dissolution of carbonate rocks. The dissolution pattern can...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199304-MS
... to dissolver formulations at 200°F under static conditions, from one hour up to 24 hours. Dissolution kinetics investigation indicates that the limiting step is a substitution surface process that catalyzes the reaction. The formulation was generated based on the discrete chemical activities of...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 19–21, 2020
Paper Number: SPE-199301-MS
... main treatment HUD fluid system barite well aa drilling fluid management & disposal lng information specialized fluid system stimulation fluid intervención de pozos petroleros well completion Nigeria operator enhanced recovery barite cake society of petroleum engineers dissolution...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 7–9, 2018
Paper Number: SPE-189538-MS
... Management stimulation Exhibition application face dissolution Pipeline Corrosion Completion Installation and Operations well integrity HCl corrosion rate main treatment fluid provide hse advantage metallurgy dissolution agent operation society of petroleum engineers Calcite...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 7–9, 2018
Paper Number: SPE-189540-MS
... dissolving the face of the wellbore ( Fig. 1 ). At higher rates, the acid creates channels called wormholes. The ideal, "dominant" wormhole is long and narrow with little branching. The dominant wormhole is formed at a small range of injection rates around an optimum. At the rates between facial dissolution...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 7–9, 2018
Paper Number: SPE-189541-MS
... Stuttgart. The model has been extended to incorporate several additional features essential to model salt precipitation and dissolution. A sensitivity study has been conducted to evaluate the impact of varying parameters such as initial liquid saturation, permeability, salinity, well pressure and drawdown...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 7–9, 2018
Paper Number: SPE-189536-MS
... experiment moduli hydraulic fracturing precipitation concentration Niobrara Formation chemical interaction core sample Colorado proppant fluid type KCl society of petroleum engineers interaction structural geology Proc mechanical property saturation dissolution A set of experiments...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 7–9, 2018
Paper Number: SPE-189567-MS
... and 1-2% pyrite. Quartz and siderite are less than 1%. Selection of stimulation fluids was based on the mineral compositions and its dissolution rate in the bottle test. Products A and B both recorded the same optimum injection rate. Observation also showed increase in injection rate from 3ml/min to 5...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-178967-MS
... emulsion-based system that is stable at elevated temperatures (e.g. up to 300°F/150°C) for a prolonged period of time. To gain a deeper understanding of the dissolution behavior and resultant wormhole morphology, a systematic coreflood study was conducted to identify key parameters that influence the...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-178983-MS
... fracture width (0.04 to 0.2 in.); pack permeability tests to optimize the particle size distribution and shape needed to minimize fracture conductivity and build the needed pressure; and dissolution tests under static and dynamic conditions to determine the time need to dissolve the particles as function...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Formation Damage Control, February 24–26, 2016
Paper Number: SPE-179021-MS
... barium will precipitate out as barium carbonate, which is barely soluble in concentrated formate brines. This new insight into the mechanisms of barite dissolution in buffered and unbuffered formate brines could open the door for the formulation of more advanced fluids for filter cake removal and scale...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 26–28, 2014
Paper Number: SPE-168145-MS
..., without causing face dissolution, independent of the flow rates ( Mahmoud et al. 2011a , b ). In sandstones, GLDA improved the permeability of the core significantly better than HEDTA by dissolving the naturally present carbonates. In contrast to HCl, GLDA was compatible with the migratory clays in the...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 26–28, 2014
Paper Number: SPE-168154-MS
..., high temperature, and tight carbonate reservoirs as it can be caused due to fines mobilization, carbonate reservoir dissolution and collapse, and scale inhibitor compatibility issues. For the development of any scale inhibitor for squeeze application, the product must also demonstrate good inhibition...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 15–17, 2012
Paper Number: SPE-151823-MS
... Abstract This work presents the development of a methodology to numerically represent the acid treatment in a test plug, as well as to reproduce the different existing dissolution patterns and to obtain the corresponding values of pore volumes to breakthrough (PVBT). The numerical simulation is...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 15–17, 2012
Paper Number: SPE-151220-MS
... observations demonstrated conclusively that borate-crosslinked filtercakes delink and redissolve in flowback water. A fracture cleanup and chemistry simulator (FCCS) was used to discover and develop an appropriate rate law for the dissolution of gel filtercakes in flowback water. The simulator was validated by...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 15–17, 2012
Paper Number: SPE-151841-MS
... study of kaolinite damage control that included dissolution and stabilization under a very unfavorable environment in which CaCO3 scales and asphaltenes also co-existed. The case herein described is the last development stage after several unsuccessful trials in the same area which included the...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 10–12, 2010
Paper Number: SPE-127923-MS
.... The dissolution mechanism involves chelation of calcium ions and does not require conventional acid attack. The ability to stimulate under acidic conditions combined with the ability to chelate metal ions provides multiple benefits in using EDTA. Fig. 2 Slurry reactor. The thermal...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 13–15, 2008
Paper Number: SPE-112373-MS
... mechanical removal of the filter cake by the liquid jet and the dissolution of filter cake and formation solids by the acid. We first created a drilling fluid filter cake and internal damage by circulating a typical drill-in fluid containing sized CaCO3 particles past the face of a 4-inch diameter by 18-inch...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 13–15, 2008
Paper Number: SPE-112420-MS
... of hydrates precipitation Hildebrand solubility parameter xylene Hansen solubility parameter concentration asphaltene deposition hildebrand parameter interaction composition emulsified solvent system asphaltene evaluation dissolution solvent mixture molecular weight SPE 112420 New...

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