Swab hoist use thereof in conveying crude oil and natural gas

Patent · Tue Jun 19 00:00:00 EDT 1984

OSTI ID:6515876

Frohlich, J L; Gamperl, J; Hanak, P; Wawra, G

The invention relates to a swab hoist for use in conveying crude oil and natural gas having a cable drum and a driving motor for the cable drum. It is the object of the invention to provide a swab hoist of improved properties. This is achieved according to the invention by providing a hydraulic drive for the transmission of force from the driving motor to the cable drum. The hydraulic drive consists of a hydraulic pump driven by the driving motor, a hydraulic motor connected to the cable drum and a control means, in particular a pressure-reducing means, all connected to one another by means of pressure lines.

• Assignee: OMV Aktiengesellshaft (Austria)
• Patent Number(s): US 4454912
• OSTI ID: 6515876
• Resource Relation: Patent Priority Date: Priority date 12 Aug 1980, Austria; Other Information: PAT-APPL-291147
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
HOISTS
DESIGN
NATURAL GAS WELLS
PUMPING
OIL WELLS
HYDRAULIC EQUIPMENT
PUMPS
EQUIPMENT
MATERIALS HANDLING EQUIPMENT
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing