Maximizing hydrocarbon production from sand-prone reservoirs
More than 60% of BP’s portfolio lies in sandstone reservoirs. These tend to be more uniform hydrocarbon reservoirs, but sandstone reservoirs pose risk of producing sand with oil and gas over time. This impacts overall production and facilities reliability. When excessive sand is produced, shutting-in wells is often the only option for the industry. At BP we have been using and developing technologies to tackle sand for decades, first with mechanical solutions to hold back sand, and more recently with digital and chemical technologies. Sand Management technologies deployed in Azerbaijan: Mechanical: A range of innovative designs to drive long term well performance and reliability. In ACG the standard completion design for producing wells is Open Hole Gravel Pack.
This was real breakthrough in the early 2000s, and we still find it effective today, although it has been undergone significant enhancements since. Digital: Proprietary software to understand the physics of why sandstone fails under production conditions. Defines optimal operating parameters to produce oil without producing sand and optimises completion design. Deployed across both ACG and Shah Deniz to assist with well operating guidelines Chemical: Chemical sand treatments add strength to rock formations without blocking pore space or impairing their permeability. Comprehensive lab testing of five approved different treatments. BP’s first offshore sand consolidation trial was completed at ACG in 2011 – well C08, where an expandable sand screen had failed: ~2 mboed production added for 4 months.