Install Velocity Tubing Strings

The document outlines how installing smaller-diameter velocity tubing strings increases gas flow velocity to lift liquids from the reservoir, eliminating the need for frequent atmospheric venting. Based on a report from TotalFinaElf, this practice can save 4,680 Mcf of methane per year per well by removing bi-weekly liquid discharges of 180 Mcf. The technology is most applicable to natural gas wells with higher reservoir pressure and relatively small liquid production, offering a potential return on investment in less than three years.

• Velocity tubing strings reduce the cross-sectional area of the flow, which increases flow velocity and allows for liquid extraction without venting methane into the atmosphere. A gas flow velocity of 1,000 feet per minute is generally required to remove liquids from the well.
• The technology is specifically suitable for natural gas wells characterized by higher reservoir pressure and relatively low liquid production.
• Based on data from a participant (TotalFinaElf), installing velocity tubing can eliminate bi-weekly liquid discharges of 180 Mcf per well, resulting in annual methane savings of 4,680 Mcf.
• The investment for this technology can be recovered in less than three years. Capital costs involve the purchase of smaller production tubing and the use of a workover truck and crew for one day.

APA

Clean Air Task Force (2004). Install Velocity Tubing Strings. https://cdn.catf.us/wp-content/uploads/2025/12/05060735/ES_install-velocity-tubing.pdf

Chicago

Clean Air Task Force. Install Velocity Tubing Strings. 2004. https://cdn.catf.us/wp-content/uploads/2025/12/05060735/ES_install-velocity-tubing.pdf.

Wikipedia

{{cite report |author=Clean Air Task Force |title=Install Velocity Tubing Strings |date=September 2004 |url=https://cdn.catf.us/wp-content/uploads/2025/12/05060735/ES_install-velocity-tubing.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{cleanairtaskforce2004install, author = {{Clean Air Task Force}}, title = {{Install Velocity Tubing Strings}}, institution = {Clean Air Task Force}, year = {2004}, month = sep, url = {https://cdn.catf.us/wp-content/uploads/2025/12/05060735/ES_install-velocity-tubing.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }