Harnessing deep transient testing for reservoir characterization and CO2 emission reduction in challenging geological settings

Q1 Earth and Planetary Sciences
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Abstract

This paper provides a comprehensive overview of Deep Transient Testing (DTT), a cutting-edge technique for reservoir characterization that has revolutionized the oil and gas industry. The main aim of DTT is to characterize the reservoir with a deeper radius of investigation. The optimization of the radius of investigation with the DTT approach is studied in detail. Reveal is a commercial numerical simulation application used to simulate the DTT process and evaluate the pressure wave analysis in the porous media. The main aim of the simulation is to understand the impact of the reservoir quality on the pressure response and use it to address the noise-to-pule ratio, which is a determinantal parameter in testing duration. The tested wells with the DTT tool show that measured well productivity can deliver the minimum commercial rate. The has been delivered within 2 days compared to the potential test time of 21 days which saved the 19 rig days and contributed to CO2 emission reduction of (gas flaring 1340 + rig emission 600) 1940 Metric tons equivalent to 421 cars emission in a year. However, DTT also presents certain limitations, such as the requirement for specialized equipment and expertise, as well as the potential for formation damage during testing. This study provides a detailed description of the DTT technique, encompassing its history, theory, and practical applications. Furthermore, it discusses the benefits and limitations of DTT and presents case studies to illustrate its effectiveness across various reservoir types. Overall, this study serves as a valuable resource for reservoir engineers, geologists, and other professionals involved in the exploration and production of oil and gas.

利用深层瞬态测试进行储层特征描述,减少挑战性地质环境中的二氧化碳排放量
本文全面概述了深层瞬态测试(DTT),这是一种用于油气藏特征描述的尖端技术,给油气行业带来了革命性的变化。DTT 的主要目的是以更深的勘探半径表征储层。本文详细研究了利用 DTT 方法优化勘探半径的问题。Reveal 是一个商业数值模拟应用程序,用于模拟 DTT 过程和评估多孔介质中的压力波分析。模拟的主要目的是了解储层质量对压力响应的影响,并利用它来解决噪音与砾石比的问题,这是测试持续时间的决定性参数。使用 DTT 工具测试的油井表明,测得的油井生产率可以达到最低商业开采率。与潜在的 21 天测试时间相比,该工具在 2 天内完成了测试,节省了 19 个钻机日,并减少了二氧化碳排放量(天然气燃烧 1340 + 钻机排放 600)1940 公吨,相当于一年 421 辆汽车的排放量。然而,DTT 也有一定的局限性,如需要专业设备和专业知识,以及在测试过程中可能对地层造成损害。本研究详细介绍了 DTT 技术,包括其历史、理论和实际应用。此外,它还讨论了 DTT 的优点和局限性,并通过案例研究说明了其在各种油藏类型中的有效性。总之,本研究为储层工程师、地质学家以及其他从事油气勘探和生产的专业人员提供了宝贵的资源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Petroleum Research
Petroleum Research Earth and Planetary Sciences-Geology
CiteScore
7.10
自引率
0.00%
发文量
90
审稿时长
35 weeks
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