annular water injection

简明释义

1. 反注; 2. 环空注入;

英英释义

例句

1.The efficiency of annular water injection can significantly impact production rates.

效率的环空注水可以显著影响生产率。

2.Engineers designed a system that utilizes annular water injection to enhance oil recovery.

工程师设计了一个利用环空注水来增强采油率的系统。

3.The process of annular water injection is crucial for maintaining reservoir pressure.

进行环空注水的过程对于维持油藏压力至关重要。

4.Monitoring annular water injection rates is essential for optimizing reservoir management.

监控环空注水速率对于优化油藏管理至关重要。

5.During the drilling operation, annular water injection helps cool the drill bit.

在钻探作业中，环空注水有助于冷却钻头。

作文

In the field of petroleum engineering, various techniques are employed to enhance oil recovery and improve reservoir management. One such technique is annular water injection, which plays a crucial role in maintaining pressure within oil reservoirs and optimizing production rates. This method involves injecting water into the annular space surrounding the production tubing or casing of a well. By doing so, it helps to maintain reservoir pressure and displace oil towards the production well, thereby increasing the efficiency of oil extraction.The process of annular water injection begins with the careful design of the wellbore. Engineers must ensure that the annular space is adequately sized and that the injection points are strategically placed to maximize the effectiveness of the water injection. The water used for injection is typically sourced from nearby bodies of water or produced water from other wells. It is essential that this water is treated to remove any impurities that could potentially harm the reservoir or interfere with oil production.One of the primary benefits of annular water injection is its ability to sustain reservoir pressure. As oil is extracted from the reservoir, the pressure naturally declines. This decline can lead to a reduction in the flow rate of oil, ultimately impacting the overall production. By injecting water into the annular space, engineers can counteract this pressure decline, ensuring that oil continues to flow at an optimal rate. This is particularly important in mature fields where pressure maintenance becomes increasingly challenging.Moreover, annular water injection can also help in improving the sweep efficiency of the reservoir. When water is injected, it moves through the pore spaces of the rock, pushing the oil towards the production well. This process can lead to a more uniform displacement of oil, reducing the amount of remaining oil that is left behind after primary production. In essence, it enhances the overall recovery factor of the reservoir, allowing operators to extract more oil than would be possible through primary recovery methods alone.However, the implementation of annular water injection is not without its challenges. One of the significant concerns is the potential for water coning, where water rises into the production zone along with the oil. This can lead to increased water production, which may require additional separation processes and can complicate the economics of the operation. Therefore, careful monitoring and management of the injection rates are necessary to mitigate this risk.Additionally, the environmental impact of annular water injection must be considered. While water injection can enhance oil recovery, it is vital to ensure that the injected water does not contaminate underground sources of drinking water or lead to surface water pollution. Regulatory agencies often impose strict guidelines on water quality and injection practices to protect the environment.In conclusion, annular water injection is a valuable technique in the oil and gas industry, providing significant advantages in maintaining reservoir pressure and improving oil recovery. Despite its challenges, when implemented correctly, it can lead to enhanced production rates and more efficient resource management. As technology advances and our understanding of reservoir dynamics improves, the role of annular water injection will likely continue to evolve, contributing to the sustainability and efficiency of oil extraction operations worldwide.

在石油工程领域，采用多种技术来增强石油采收和改善油藏管理。其中一种技术是环空水注入，它在维持油藏压力和优化生产率方面发挥着重要作用。该方法涉及将水注入井的生产管道或套管周围的环空空间。通过这样做，它有助于维持油藏压力并将石油推向生产井，从而提高石油提取的效率。环空水注入的过程始于对井眼的精心设计。工程师必须确保环空空间的大小适当，并且注水点战略性地放置，以最大化水注入的有效性。用于注入的水通常来自附近的水体或其他井的生产水。必须对这些水进行处理，以去除任何可能损害油藏或干扰石油生产的杂质。环空水注入的主要好处之一是其维持油藏压力的能力。随着油从油藏中提取，压力自然下降。这一下降可能导致石油流速减少，从而最终影响整体生产。通过将水注入环空空间，工程师可以抵消这种压力下降，确保石油以最佳速率继续流动。这在成熟油田中特别重要，因为维持压力变得越来越具有挑战性。此外，环空水注入还可以帮助改善油藏的扫掠效率。当水被注入时，它会通过岩石的孔隙移动，将石油推向生产井。这个过程可以导致更均匀的石油置换，减少原油生产后剩余的石油量。从本质上讲，它提高了油藏的整体采收率，使操作员能够提取比仅通过初级采收方法更高的石油。然而，实施环空水注入并非没有挑战。一个主要的担忧是水锥现象的潜在风险，即水沿着油进入生产区。这可能导致水生产增加，这可能需要额外的分离过程，并可能使操作的经济性复杂化。因此，需要仔细监测和管理注入速率以减轻这一风险。此外，必须考虑环空水注入对环境的影响。虽然水注入可以增强石油采收，但确保注入的水不会污染地下饮用水源或导致地表水污染至关重要。监管机构通常对水质和注入实践施加严格的指导方针，以保护环境。总之，环空水注入是石油和天然气行业的一项宝贵技术，在维持油藏压力和改善石油采收方面提供了显著优势。尽管存在挑战，但如果实施得当，可以导致提高的生产率和更高效的资源管理。随着技术的进步和我们对油藏动态的理解不断加深，环空水注入的角色可能会继续演变，为全球石油提取操作的可持续性和效率做出贡献。