|
2014
|
Invention
|
Velocity pumping system. In one aspect, the present invention provides a surface unit for a pumpi... |
|
|
Invention
|
Pumping system with plunger having a shaped edge and coating. In one aspect, the present inventio... |
|
2001
|
Invention
|
Pump systems and methods. A pumping system comprises a pump barrel that is adapted to be placed i... |
|
2000
|
Invention
|
Pump systems and methods.
A pumping system comprises a pump barrel (526) that is adap... |
|
|
Invention
|
Pump systems and methods. A pumping system comprises a pump barrel (526) that is adapted to be pl... |
|
1997
|
Invention
|
Pump system and methods for pumping well fluids. The invention provides a pumping system which co... |
|
|
Invention
|
Pump system and method for pumping well fluids. The invention provides apparatus for producing we... |
|
1996
|
Invention
|
Tubing pump system for pumping well fluids. The invention provides apparatus for producing well f... |
|
1995
|
Invention
|
System for pumping well fluids.
The present invention provides a pumping system having... |
|
|
Invention
|
System for pumping well fluids. The present invention provides a pumping system having parallel p... |
|
1994
|
Invention
|
Parallel tubing system for pumping well fluids. The present invention provides a pumping system h... |
