| US 7,413,009 B2 | ||
| System and method for pumping fluids | ||
| Christopher A. Jacobs, Midland, Tex. (US); and James C. Henry, Midland, Tex. (US) | ||
| Assigned to Henry Research and Development LLC, Midland, Tex. (US) | ||
| Filed on Nov. 17, 2005, as Appl. No. 11/282,442. | ||
| Prior Publication US 2007/0110598 A1, May 17, 2007 | ||
| Int. Cl. E21B 43/00 (2006.01) | ||
| U.S. Cl. 166—105 [417/415] | 49 Claims |
| 1. A system for pumping well fluid to an upper surface of a well, comprising:
a. a sucker rod pump;
b. a hydraulic cylinder coupled to the sucker rod pump and adapted to impart linear motion to the sucker rod pump;
c. a hydraulic pump coupled to the hydraulic cylinder and adapted to provide hydraulic fluid to the hydraulic cylinder; and
d. an electrical to mechanical converter (EMC) coupled to the hydraulic pump and adapted to provide input power to the hydraulic
pump,
at least the hydraulic cylinder being disposed downhole with the sucker rod pump and adapted to operate the sucker rod pump
independent of a sucker rod extending down from a surface pumping unit.
|