Reducing upstream methane emissions from oil and gas operations is an important component of CNPC’s Green Action Plan, launched in 2011. CNPC monitors methane emission from major sources in its full value chain of oil and gas production, and is making great efforts to reduce leakage, venting and flaring.
Routine flaring is now avoided in new sites as well as in existing major ones. Coverage of leak detection and repair (LDAR) campaigns, which have been used comprehensively in downstream operations, is now being expanded to all CNPC operated sites. In 2019, LDAR pilots were expanded in Dagang and other oil fields and more are planned over 2020.
Finding ways to ensure recovery of associated natural gas from oil fields has become part of standard operations. Compressed natural gas integrated units are used to recover venting from remote wells that have no pipeline access, low-pressure associated gas is pressurized into gathering pipelines to make it marketable, and recovered gas is used to provide drilling power to rigs and auxiliary generators.
In the Tarim oil field, a total of 48 recovery stations have been set up, with the capacity to recover 4.2 million cubic meters of associated gas per day. The annual recovery of associated gas in Changqing oil field has reached 1 billion cubic meters.
What member companies are doing
Learn more about our member companies’ work to reduce carbon emissions.
Equinor – A world leader in carbon efficiency
Equinor has eliminated around 2 million tonnes of carbon dioxide over the past decade through a series of energy efficiency initiatives.
Total – Energy efficiency in action
Total’s $300 million Energy Efficiency Plan, introduced in 2018, aims to reduce CO2 emissions by around one million tonnes per year in its refining and chemical operations.
Petrobras – Step change in carbon efficiency
Petrobras has ended all routine flaring in its operated assets by building infrastructure to export or reinject gas.