Best Practices and Specific Actions
Range is committed to ensuring compliance and meeting its voluntary commitments to limit and manage emissions. Through engineering and implementation of best practices, Range manages and limits emissions while enhancing overall production. For example, Range conducts emission inventories and regular field inspections. Annually, Range reviews well site and compressor station designs to improve emissions controls by applying our core values of performance, integrity, innovation, and transparency.
Implementing controls to limit the combustion of fuels is a top priority. In Pennsylvania, Range operates a natural gas-powered drilling rig. Flaring is limited to situations where it is necessary for repair, maintenance, emergency or safety. Range reduces natural gas flaring and the resulting greenhouse gas emissions by capturing and enclosed burning flaring, when possible. Selective Catalytic Reduction (SCR) technology is sometimes used for reducing NOx emissions from drilling, provided the rig is capable of accommodating the control.
Range complies with the EPA’s green completions standards. A closed-loop system, constructed before permanent production facilities are installed, is utilized on new sites to capture emissions and eliminate the need for flaring.
Temporary Water Transfer
Range maintains a robust water-recycling program that utilizes permanent and temporary water transfer pipelines which significantly reduces truck traffic. Additionally, when trucks are used during water transfer, Range requires reduced idling times at its locations. Trucks are tracked by satellite to ensure the most efficient and safe operations possible.
Range’s permanent shale production facilities are outfitted with emissions-reducing technologies. Range continuously evaluates its facilities through a leak detection and repair program used to find new and innovative methods for emissions management.
For the Marcellus Shale Play, Leak Detection and Repair (LDAR) surveys are detailed in the Compliance Demonstration Reporting (CDR) submissions to the Pennsylvania Department of Environmental Protection for all wells that were drilled after August 10, 2013. LDAR is performed within 60 days of the start of production and annually thereafter.
Range annually reports the number of high bleed, intermittent, and low bleed controllers to the Environmental Protection Agency. In 2015, Range reported zero high-bleed controllers.
An optical gas imaging (OGI) camera is used to perform the LDAR surveys.
View Range's fact sheet here on best management practices for a typical Marcellus shale well.
Range submits an annual Greenhouse Gas Report to the Environmental Protection Agency that includes details on its engines and fuel usage, as well as details on its production operations practices.
Additionally, methods of emission reduction are included in the annual emission report to the Pennsylvania Department of Environmental Protection (the PADEP) for the Marcellus Shale Play. For drilling operations, there is a control selection field in the Pennsylvania state oil and gas reporting electronic (OGRE) report. For each well pad that has been spud after August 10, 2013, a Compliance Demonstration Report (CDR) is submitted to the PADEP, detailing source emissions, emissions control, and methods of determining emissions rates within 180 days of the start of production.