老朽油田操業におけるデジタルトランスフォーメーションへの試み

抄録

In mature fields, unique challenges arise that differ from those encountered at the start of production. These include operational and development cost constraints, maintaining production rates, quality control and maintenance of aging facilities, and the accumulation of know-how among long-term employees. JX Nippon Oil & Gas Exploration Corporation's subsidiary, Japan Vietnam Petroleum Company（JVPC）, has implemented several digital transformation（DX）initiatives to address these issues. This paper reports on the background and outcomes of these initiatives, demonstrating how DX can drive organizational change in the oil and gas industry.

JVPC operates an offshore oil field in Vietnam, having started crude oil production in 1998. Despite the decline phase of the main reservoir, efforts to maintain reservoir pressure through Water Alternating Gas Injection（WAG）have been ongoing. The DX project, initiated in 2021, aimed to maximize production, reduce operational costs, manage well and facility integrity, and optimize business workflows. The project was divided into two phases: Phase 1 involved evaluating the current state of digital maturity and identifying challenges, while Phase 2 focused on developing and implementing action plans based on these findings.

Key initiatives included the creation of an internal portal for centralized data access, the development of various dashboards for real-time monitoring, and the application of predictive maintenance. Additionally, data-driven subsurface evaluation methods were employed to enhance reservoir management, such as the Capacitance-Resistance Model（CRM） for evaluating well connectivity and machine learning techniques applied to seismic data.

The DX project has led to significant improvements in data management, operational efficiency, and the sharing of information across the organization. However, continuous efforts and regular reviews of the DX strategy are essential to sustain growth and uncover new opportunities for value creation. JVPC remains committed to advancing its DX initiatives to achieve sustainable operations and long-term success.