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USA: Methane Leakage

Exxon Mobil Commits to Emission Reduction

| Editor: Alexander Stark

XTO Energy natural gas operations in Alberta, Canada.
XTO Energy natural gas operations in Alberta, Canada. (Source: Exxon Mobil)

Exxon Mobil announced an enhanced program to reduce methane emissions from its production and midstream facilities across the United States.

Fort Worth/USA — The program prioritizes actions at sites operated by subsidiary XTO Energy and includes efforts to develop and deploy new, more efficient technologies to detect and reduce facility emissions.

“We are implementing an enhanced leak detection and repair program across our production and midstream sites to continually reduce methane emissions, and are also evaluating opportunities to upgrade facilities and improve efficiency at both current and future sites,” said XTO president Sara Ortwein.

The program includes a commitment to phase out high-bleed pneumatic devices over three years, extensive personnel training, research, and facility design improvements for new operations.

XTO recently completed a pilot project in the Midland Basin that tested new low-emission designs that use compressed air instead of natural gas to operate pneumatic equipment that helps regulate conditions such as level, flow, pressure and temperature. According to the company, the results demonstrated the feasibility of using similar designs for new and existing central tank batteries and satellites, to reduce the potential for methane emissions.

Methane Detection

The efforts also include research conducted with Exxon Mobil Upstream Research Company and third-party equipment manufacturers to continue development of more efficient, state-of-the-art equipment to detect, quantify and reduce emissions at production sites. These research efforts build on two dozen existing methane research projects and pilots already under way.

Earlier this year, the oil company, National Oceanic and Atmospheric Administration, and others evaluated the use of aircraft-mounted leak detection surveys to guide equipment repair, and continue to assess the use of satellite, aircraft, unmanned aerial vehicles, and mobile and ground-based technologies to refine the company’s methane monitoring.

As part of the company’s efforts to better understand the magnitude and characteristics of oil and gas industry-related methane emissions, Exxon Mobil participated in studies conducted by the University of Texas and Environmental Defense Fund.

Ongoing methane research includes the participation in a methane measurement reconciliation study with the Department of Energy’s National Renewable Energy Laboratory, and the support of research currently underway at Harvard, the University of Texas Energy Initiative, and Stanford University’s Natural Gas Initiative.

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