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    • 96. 发明申请
    • OPTIMIZING MATRIX ACIDIZING OPERATIONS
    • 优化基质酸化操作
    • US20160341019A1
    • 2016-11-24
    • US14719450
    • 2015-05-22
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Xiangdong QiuStephen Dyer
    • E21B43/16G05B15/02G05D11/13E21B47/06C09K8/72
    • G05D11/13C09K8/72E21B43/255
    • An acid source and a pressure source are provided. The acid may be fresh hydrochloric acid or (partially) spent hydrochloric acid. Pressurized acid from the acid source, pressurized by the pressure source, is injected into a wellbore during an acidizing operation. In addition, a carbon dioxide source may be provided. Acid from the acid source is combined with carbon dioxide from the carbon dioxide source, and the combined acid and carbon dioxide, pressurized by the pressure source, are injected into the wellbore during the acidizing operation. A processor located at the earth's surface or downhole may be provided. The processor can monitor the relative proportions of carbon dioxide and acid in the acid/carbon dioxide combination, as well as the pressure of the acid/carbon dioxide combination at an injection site in the wellbore. Acidizing operation management decisions can be made based on the monitored relative proportions and/or the monitored pressure.
    • 提供酸源和压力源。 酸可以是新鲜的盐酸或(部分)废盐酸。 在酸化操作期间,由压力源加压的来自酸源的加压酸被注入井眼。 另外,可以提供二氧化碳源。 来自酸源的酸与来自二氧化碳源的二氧化碳组合,并且在酸化操作期间由压力源加压的合并的酸和二氧化碳被喷射到井筒中。 可以提供位于地球表面或井下的处理器。 处理器可以监测酸/二氧化碳组合中二氧化碳和酸的相对比例以及井眼注射部位的酸/二氧化碳组合的压力。 酸化操作管理决定可以基于所监测的相对比例和/或所监测的压力进行。