Linear Rod Pump Implementation in a Coal Bed Methane Field

            Linear rod pumps (LRP) have been used to great success as an alternative form of artificial lift in the San Juan Basin. Utilized mostly to deliquify coal bed methane wells, the LRP has proven to be a viable alternative to traditional beam pumps in both vertical and deviated wells. Thanks to its broad production operation range, an estimated 75% of the field’s artificial lift needs can be met with this technology. Cost savings, in relation to beam units, have been seen at the beginning of the project and have continued during regular operations. The location of many wells in the northern part of the San Juan Basin require visual and noise mitigation measures. The LRP has been particularly effective for such sites due to its reduced footprint and quiet operation.

            One of the primary drawbacks to the LRP was its height. For wells with center pivot irrigation systems passing overhead, it was simply too tall. A new lower profile LRP is now in the initial trial stages for wells with this issue, with preliminary results appearing quite positive.

            Although not a solution to all artificial lift problems, the LRP has proven to be an effective alternative and is continuing to be used in new ways throughout the San Juan Basin. 

About The Author

Mr. Eric Penner graduated from the University of Oklahoma with a bachelors in Chemical Engineering. He went to work for BP as a production engineer and has worked a variety of assignments, including the Pompano platform in the Gulf of Mexico, the Arkoma asset in southeast Oklahoma, the Permian Basin, and currently is focused on coal bed methane wells in the Durango area.