Jie Cao, Kun Liu, Guobin Xu, Chunlin Liu, Weikun Zhen, Jia Wang
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引用次数: 2
Abstract
Triethylamine (TEA), 1, 4-dibromobutane (C4H8Br2) and N, N-dimethylaminopropyl acrylamide (DMAPAA) were selected to synthesize a double quaternary ammonium cationic monomer (TDD). TDD, acrylamide (AM), 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and acrylic acid (AA) were used to create a quadripolymer (PAAT) that was characterized by FT-IR and 1H NMR. Following that, the basic performance of thickened acid was assessed. The results revealed that PAAT outperformed PAA (copolymerized by AM, AMPS and AA) in terms of acid solubility, thickening performance, temperature resistance and shear resistance. Furthermore, this crosslinked acid containing PAAT was subjected to a series of performance evaluations. The viscosity of the crosslinked acid could be kept at 67 mPa·s at 160°C after 90 min and the weight loss rate of crosslinked acid in acid-rock reaction at 60 min was 23%, indicating the temperature resistance and retarder performance of the crosslinked acid solution was significantly better than that of the thickening acid and the blank acid. A scanning electron microscopy experiment revealed that crosslinked acid has good corrosion ability and low damage to the reservoir. The above experimental results indicated that the thickener PAAT has a promising future application in acid fracturing of high-temperature and high-mineralization carbonate reservoirs.
期刊介绍：
Examples of appropriate topical areas that will be considered include the following: 1.comprehensive research on oil and gas reservoir (reservoir geology): -geological basis of oil and gas reservoirs -reservoir geochemistry -reservoir formation mechanism -reservoir identification methods and techniques 2.kinetics of oil and gas basins and analyses of potential oil and gas resources: -fine description factors of hydrocarbon accumulation -mechanism analysis on recovery and dynamic accumulation process -relationship between accumulation factors and the accumulation process -analysis of oil and gas potential resource 3.theories and methods for complex reservoir geophysical prospecting: -geophysical basis of deep geologic structures and background of hydrocarbon occurrence -geophysical prediction of deep and complex reservoirs -physical test analyses and numerical simulations of reservoir rocks -anisotropic medium seismic imaging theory and new technology for multiwave seismic exploration -o theories and methods for reservoir fluid geophysical identification and prediction 4.theories, methods, technology, and design for complex reservoir development: -reservoir percolation theory and application technology -field development theories and methods -theory and technology for enhancing recovery efficiency 5.working liquid for oil and gas wells and reservoir protection technology: -working chemicals and mechanics for oil and gas wells -reservoir protection technology 6.new techniques and technologies for oil and gas drilling and production: -under-balanced drilling/gas drilling -special-track well drilling -cementing and completion of oil and gas wells -engineering safety applications for oil and gas wells -new technology of fracture acidizing
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