Oil well pump driving unit

Patent · Tue Feb 21 00:00:00 EST 1984

OSTI ID:7039467

Gilbertson, T A

An oil well pump driving unit with a horizontally disposed hydraulic cylinder having a cylinder rod coupled to a drive rope extending into a pumping tee-stuffing box arrangement for driving the sucker rod string leading to a conventional oil well reciprocating pump. The drive rope extends over a first rotating sheave mounted near the wellhead and passes over a second rotating sheave mounted on a carriage which traverses a carriage channel in a draw works on which the hydraulic cylinder is mounted. A hydraulic drive/control system utilizing limit switches on the draw works provides control over the stroke position, the stroke length, and the stroke rate.

• Assignee: EDB-84-115020
• Patent Number(s): US 4432706
• OSTI ID: 7039467
• Resource Relation: Patent File Date: Filed date 21 Jun 1982; Other Information: PAT-APPL-390646
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
PUMPS
DESIGN
CONTROL SYSTEMS
HYDRAULICS
MOTORS
FLUID MECHANICS
MECHANICS
WELLS
020300* - Petroleum- Drilling & Production