Efficient Development of Shale Oil in Changqing Oilfield through Technological Innovation

The Changqing Oilfield's shale oil reservoirs present significant development challenges due to their characteristics, including thin single sand bodies, strong heterogeneity, and insufficient natural energy. To overcome these challenges, technological innovation has led to a breakthrough, enabling efficient development of these reservoirs. The field has shifted its focus from reservoirs to source rocks, leveraging the "horizontal well + volume fracturing" technology. A large-scale development plan has been proposed, and theories related to reservoir formation and complex fracture networks have been established.

Key Takeaways:

• The "horizontal well + volume fracturing" technology has been used to develop shale oil in Changqing Oilfield, achieving a high oil layer drilling rate of 83%.
• The field has established a shale oil capacity construction project team, integrating technical personnel from different units and professions to optimize sweet spots and solve technical problems.
• The project team's integrated approach has led to the maximization of single well production and reduction of engineering costs.
• A new technology model has been developed for fine segmentation of shale oil continuous tubing, fixed-point seam layout, and precise fracturing on the Hua H100 platform.
• The Hua H100 platform has become a production "aircraft carrier" with the largest number of wells, the largest controlled reserves, the highest production, and the best efficiency on a single shale oil platform.

Statistics:

• The oil layer drilling rate has increased to 83% through the use of the "horizontal well + volume fracturing" technology.
• The Hua H100 platform has achieved the largest number of wells, the largest controlled reserves, and the highest production on a single shale oil platform.
• The production of just one platform is equivalent to that of a medium-sized oil production operation area.
• Five major technical series and 18 supporting technologies have been integrated to lay a solid foundation for efficient shale oil development.

Sources:

• (Yang Jie, Li Jianning)
• Copyright Gulfoilandgas.com. All rights reserved.