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Papers

An Innovative Design For Downhole Gas Separation

Jyothi Swaroop Samayamantula, Don-Nan Pump & Supply Company
Presented at 2010 Southwestern Petroleum Short Course in Lubbock

SUMMARY. Gas presence in the pumping zone causes problems such as gas lock, gas pound, and gas interference which cost companies' time, money and resources. Reduced pump efficiencies inspired our research team in developing an innovative design for gas separation that diverts gas from entering the pump intake. Consequently, reducing pump failures maximized pump efficiency. See Video here.

Uses, Operation, Design Considerations and Load Ratings of On-Off Tool

Ricky Roderick, Don-Nan Pump & Supply Company
Jyothi Swaroop Samayamantula, Don-Nan Pump & Supply Company

Presented at the 2011 Southwestern Petroleum Short Course in Lubbock

SUMMARY. The scope of this paper includes a brief introduction about On-Off tool, design and construction, their applications, operational procedures, and general load carrying capabilities. The paper discusses some advantages gained by installing an On-Of tool such as, the ability to repair or replace the rod string without unseating the pump, the ability to break the sucker rod string just above the pump eliminating stripping job and the ability to run oversized tubing pumps. See Video here.

From Failure to Success: A Metallurgical Story on Sucker Rod Pump Barrels

Pinar Karpuz-Pickell, Ph.D., Don-Nan Pump & Supply
Ricky Roderick, Don-Nan Pump & Supply
Presented at the 2015 Southwestern Petroleum Short Course

SUMMARY. This paper focuses on pump barrel selection and operation with regards to base metallurgies coupled with various plating processes. It aims to inform the reader of common pump barrel failures and their causes, along with educating operators about available barrel types and their optimum operating environments.

Tubing Anchor Catcher Applications and Operation

Ricky Roderick, Don-Nan Pump & Supply Company
Jyothi Swaroop Samayamantula, Don-Nan Pump & Supply Company

Presented at the 2013 Southwestern Petroleum Short Course in Lubbock

SUMMARY. From the selection process to installation and continued maintenance, the Tubing Anchor Catcher (TAC) is one of the most important tools in achieving efficient pumping operation. The upstream oil and gas sector continues to evolve with new methods morphed from old methods as it pertains to artificial lift systems. While the people and parts continue to change, understanding the basic, yet important, aspects of TACs with relation to their applications, operational procedures, and tubing stretch is necessary. In covering the basics and importance of the TAC, the scope of this paper will expand on tubing stretch calculations, shear values, drag spring usage, troubleshooting, and other installation techniques.