On April 21, ROC Oil’s Bajiaochang Gas Field reached a daily production of over 4.26 million cubic meters, marking an 18.3% increase over the previous record high. Just one month after the last milestone, this achievement once again sets a new production record. Once the partner’s gas processing plant completes its commissioning and new wells at Bajiaochang come online, output is expected to increase even further.
This production boost is the result of a cooperation agreement reached after multiple in-depth discussions between the project team and its partner. According to the agreement, a portion of Bajiaochang’s wet gas can be directly routed to the partner’s gas processing facility, thereby unlocking more production potential at the field.
To make this possible, the team planned ahead, optimized modification plans, and carefully coordinated production enhancement efforts. On April 17, modifications were completed for the Jiao-25 metering system and for the separation of dry and wet gas streams. To ensure construction would not impact existing gas supply, the project team developed a detailed implementation plan, conducted multiple on-site surveys, performed cross-checks on construction proposals, evaluated and refined the plans from various angles, and pre-fabricated key components in advance, effectively compressing the construction timeline.
With joint efforts from all involved parties, the team successfully completed the J110-T connection, J25 trade metering system, and the dry-wet gas separation project. An innovative “dual regulation valve” system was introduced, combining pressure and flow control valves to dynamically allocate gas from the Jiao-58 well area between the DPP unit and the cryogenic plant. This maximized the production potential of individual wells.
Additionally, the team carefully scheduled the modifications, reducing estimated production losses during the upgrade period from 800,000 to just 150,000 m3. The production team continued to optimize operational processes and increased gas supply. To fully tap into the potential of older wells, four old wells—J70 and J74—were brought back online, contributing over 200,000 m3 of added production. Tailored enhancement plans, such as compressor-based output boosts, were developed based on the characteristics of each old well. The J77 well pressurization project was also launched, increasing output by over 90,000 m3 and providing valuable experience for future production enhancement of mature wells.