Drag-reducing agents for hydrocarbon pipelines

碳氢化合物管道减阻剂

• 批准号: 571290-2021
• 负责人: Ghaemi, SinaS
• 金额: $ 5.1万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=759958
• 关键词: Drag; reducing; agents; hydrocarbon; pipelines

Canada has a vast network of pipelines that are integral for the transportation of crude oil and refined petroleum products to local and oversea markets. Pumping liquid hydrocarbons over long distance demands a considerable amount of electricity that adversely effects the potential daily throughput and energy efficiency of the pipelines. To reduce the pumping power and increase the pipelines throughput, oil-soluble polymers - commonly called drag-reducing agents (DRAs) - have often been employed by pipelines operators. When injected and mixed with the liquid hydrocarbon within the pipeline, the DRAs can induce a 20 to 50% reduction in drag, which translates to less energy consumed by the pumps. Unfortunately, predicting the drag-reducing capabilities of these DRAs has often been challenging. Our partnership with Enbridge will develop a procedure for better predicting the friction drag of hydrocarbon liquids with polymeric DRAs. The derived method will enable pipeline operators to select the most effective DRA and its optimum dosage for the given batch of hydrocarbon in the pipeline. The implications of this project will be a greater reduction in electricity consumed by the pumps and a more efficient delivery of oil products to local and international markets.Our procedure for predicting the efficacy of DRAs will be achieved using a three step approach. First, we will discover and characterize the material properties of several hydrocarbon-DRA solutions and measure their friction drag in a laboratory-scale pipe loop. Second, we will identify the fluid property that correlates best with the friction drag of the pipe flow. Third, a model equation will be derived that relates the material properties of the fluid with the friction drag measurements. The equation will require a simple rheological measurement to provide an accurate estimation of the frictional drag of a hydrocarbon-DRA combination. The proposed research program will provide the knowledge and expertise required to select DRAs for hydrocarbon pipelines. The petroleum industry in Canada will benefit from the achievements of this program by increasing the efficiency of their pipelines and reducing their environmental emissions.

加拿大拥有庞大的管道网络，是将原油和精炼石油产品运输到本地和海外市场的不可或缺的组成部分。长距离泵送液态烃需要大量的电力，这对管道的潜在日吞吐量和能源效率产生了不利影响。为了降低泵送功率并增加管道吞吐量，油溶性聚合物-通常称为减阻剂（DRA）-经常被管道运营商使用。当在管道内注入并与液态烃混合时，DRA可以引起阻力减少20%至50%，这意味着泵消耗的能量更少。不幸的是，预测这些DRA的减阻能力往往具有挑战性。我们与Enbridge的合作将开发一种程序，用于更好地预测烃类液体与聚合物DRA的摩擦阻力。所导出的方法将使管道运营商能够针对管道中给定的碳氢化合物批次选择最有效的添加剂及其最佳剂量。该项目的影响将是更大程度地减少泵消耗的电力，并更有效地将石油产品输送到当地和国际市场。我们预测DRA功效的程序将使用三步方法实现。首先，我们将发现和表征几种碳氢化合物溶液的材料性质，并在实验室规模的管道回路中测量它们的摩擦阻力。其次，我们将确定与管流的摩擦阻力最相关的流体性质。第三，将推导出一个模型方程，该方程将流体的材料特性与摩擦阻力测量值联系起来。该方程将需要简单的流变测量，以提供烃-烃组合的摩擦阻力的准确估计。拟议的研究计划将提供为碳氢化合物管道选择DRA所需的知识和专业知识。加拿大的石油工业将从该计划的成就中受益，提高其管道的效率，减少其环境排放。