增强恢复

多元地球化学指纹揭示EOR过程的影响

本研究利用石油指纹技术和地球化学数据来评估主油田与其边缘井之间的流体连通性。

图 1——X 油田区域的俯视图，显示了两个西部评估井 X-194 和 X-196 的位置。
图 1——X 油田区域的俯视图，显示了两个西部评估井 X-194 和 X-196 的位置。
来源：SPE 222836。

所研究的阿布扎比​​陆上油田拥有超过60口生产水平井，15年来一直采用混相技术进行大规模油气开采。该油田近期的扩建包括钻探边界井，以评估西部潜在的独立油藏，并确认结构完整性和油藏连续性。本研究利用油指纹技术和地球化学数据来评估主油田和边坡井之间的流体连通性。

场地背景

主油田水平井生产采用水气交替（WAG）、CO 2 -WAG和CO 2强化采油技术辅助，其中WAG已运行15年。

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Enhanced recovery

Multivariate Geochemical Fingerprinting Reveals Effects of EOR Processes

This study leverages oil-fingerprinting technology and geochemical data to evaluate the fluid connectivity between a main field and its stepout wells.

Fig. 1—Map of Field X areas showing the location of the two western appraisal wells, X-194 and X-196.
Fig. 1—Map of Field X areas showing the location of the two western appraisal wells, X-194 and X-196.
Source: SPE 222836.

The studied Abu Dhabi onshore field, characterized by over 60 producing horizontal wells, has undergone extensive hydrocarbon recovery through miscible techniques for more than 15 years. The field’s recent expansion includes delineation wells drilled to appraise potentially separate oil pools to the west and confirm structural integrity and reservoir continuity. This study leverages oil-fingerprinting technology and geochemical data to evaluate fluid connectivity between the main field and stepout wells.

Field Background

The main field’s horizontal-well production is assisted by water-alternating-gas (WAG), CO2-WAG, and CO2 enhanced oil recovery. The WAG has been operational for 15 years.

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