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A LABORATORY TESTING PROCEDURE TO SELECT ACID OR PROPPANT FRACTURING STIMULATION TREATMENT FOR A GIVEN CARBONATE FORMATION
A LABORATORY TESTING PROCEDURE TO SELECT ACID OR PROPPANT FRACTURING STIMULATION TREATMENT FOR A GIVEN CARBONATE FORMATION
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机译:为给定的碳酸盐形成物选择酸或支撑剂压裂模拟处理的实验室测试程序
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摘要
Embodiments of the present invention enables users to determine the efficiency of acid fracturing in stimulating a formation. The testing procedures of embodiments of the present invention examine the elastic, plastic, and creeping effects on closing an acidized fracture during the life span of an oil/gas well. If it is determined that an acidized fracture will be closed for a given stress and temperature, then proppant fracturing should be used; otherwise, acid fracturing is the stimulation treatment to consider. The testing results also provide an estimation of the lifetime of an acid fracture for a given set of in-situ conditions of stress and temperature. If the lifetime is determined to be too short to make the fracturing treatment economically feasible, a different stimulation method should be considered, such as proppant fracturing or matrix acidizing.
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