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Showing 1 to 10 of 10 for “"Acidizing"”.
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Feasibility Analysis and Optimal Design of the Acidizing of Coalbed Methane Wells
… feasibility analysis and optimal design of the acidizing of CBM wells to remove the plugging are researched. First, X-ray diffraction analysis shows that the plugging contains acid-soluble minerals and a field case indicates that the acidizing effect is positively correlated with the content of …
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Numerical Modeling and Simulation of Mineral Dissolution in Fractured Carbonate Formations
… geological CO2 sequestration (GCS), and matrix acidizing in carbonate formations. Such a dissolution process could form the preferential pathways to cause a failure of waterflooding and GCS due to the early breakthrough of the displacing fluid and CO2 leakage, and it could also dramatically …
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Geochemical Flow Modeling
… difference approach for solution. In a sandstone acidizing application, the model showed that several insoluble species can form during HF/HCl acidizing of iv argillaceous sandstones and that the most damaging precipitates can be avoided if the HF /HCl formulation is properly matched to the …
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The Influence of Equilibrium Reactions on the Kinetics of Calcite Dissolution in Lactic Acid Solutions
Matrix acidizing has historically been a common means of removing formation damage and increasing the productivity of petroleum wells. Organic acids have been used in an effort to minimize the corrosion problem and the rapid reaction rate encountered when using strong acids, such as hydrochloric …
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Evaluation of diagnostic fracture injection test (DFIT) and rate transient analysis (RTA) in Hereford field, northern DJ Basin
… in the United States, hydraulic fracturing and acidizing have become the primary techniques for stimulating these ultra-low permeability reservoirs. Furthermore, unlike conventional reservoirs, unconventional reservoirs require a much deeper understanding of reservoir sediment. Geology and …
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Evaluation of diagnostic fracture injection test (DFIT) and rate transient analysis (RTA) in Hereford field, northern DJ Basin
… in the United States, hydraulic fracturing and acidizing have become the primary techniques for stimulating these ultra-low permeability reservoirs. Furthermore, unlike conventional reservoirs, unconventional reservoirs require a much deeper understanding of reservoir sediment. Geology and …
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Laser induced fractures in porous media.
… - by conventional matrix stimulation, including acidizing and hydraulic fracturing techniques. The range of power requirements indicated in this research is within the potential capacity of laser technology, though it could be higher than the available commercial range. However, further …
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Investigation of post hydraulic fracturing well cleanup physics in the Cana Woodford shale
… existent in the cleanup process. The Fracturing, Acidizing, Stimulation Technology (FAST) Consortium at Colorado School of Mines previously developed a numerical model for investigating the hydraulic fracturing process, cleanup, and relevant physics. It is a three-dimensional, gas-water, coupled …
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Unconfined compressive strength prediction using drilling parameters and analyzing feature importance through principal components analysis
… the success of completion operations such as acidizing and fracturing. Different methods are available to estimate UCS. The common practice to estimate UCS is to conduct experiments with a laboratory testing setup. These laboratory experiments are considered the most accurate way to measure …
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Performance Of A Novel In-Situ HCl For Carbonate and Sandstone Reservoirs
The oil industry has been utilizing different acid systems, both organic and inorganic, to stimulate sandstone and carbonate reservoirs. Among these, hydrochloric acid (HCl) is the most commonly used acid because it is cheap and efficient. In carbonate reservoirs, HCl is used by itself to decrease …