Connect Casing to Vapor Recovery Unit

The document outlines a technical practice to reduce methane emissions by routing casing gas, which is typically vented to the atmosphere, into a vapor recovery unit (VRU). This method is applicable to oil and gas wells produced via tubing with no packer. One partner, Marathon Oil Company, reported recovering an average of 7,300 thousand cubic feet of methane gas per year, equivalent to 10,000 thousand cubic feet of natural gas with 73% methane content. The economic analysis indicates that the investment can be recovered quickly, with potential investment costs ranging from under $1,000 to over $10,000 and payback periods between 0 and 10 years. For a single well, the recovered gas can offset pipeline costs and electricity expenses, such as an estimated $3,400 annual increase in electricity costs at a rate of 7.5 cents/kWh to inject gas into a 100 psig pressure system.

• Investment costs for this implementation can vary from less than $1,000 to over $10,000, with corresponding payback periods ranging from 0-1 year to 3-10 years.

APA

Clean Air Task Force (n.d.). Connect Casing to Vapor Recovery Unit. https://cdn.catf.us/wp-content/uploads/2025/12/04052928/CH_connect-casing-to-VRU.pdf

Chicago

Clean Air Task Force. Connect Casing to Vapor Recovery Unit. n.d. https://cdn.catf.us/wp-content/uploads/2025/12/04052928/CH_connect-casing-to-VRU.pdf.

Wikipedia

{{cite report |author=Clean Air Task Force |title=Connect Casing to Vapor Recovery Unit |url=https://cdn.catf.us/wp-content/uploads/2025/12/04052928/CH_connect-casing-to-VRU.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{cleanairtaskforcendconnect, author = {{Clean Air Task Force}}, title = {{Connect Casing to Vapor Recovery Unit}}, institution = {Clean Air Task Force}, url = {https://cdn.catf.us/wp-content/uploads/2025/12/04052928/CH_connect-casing-to-VRU.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }