Rod coupling with mounted guide
This patent describes a well sucker rod string, in a well bore, the combination comprising: an axially elongated coupling section having threads at axially opposite ends thereof for coupling to and between successive sucker rods in the rod string, to transmit string loading. The section has first and second exposed surfaces adjacent an end of the section, and a third surface located between the first and second exposed surfaces; a rod guide consisting of molded plastic material extending about and bonded to the section third surface to project outwardly therefrom for engagement with the well bore during up and down stroking of the string; and one annular groove sunk in the section between the first and third surfaces, and another annular groove sunk in the section between the second and third surfaces. The depth of the one groove is less than about 15% of the radius of the section at the first surface.
- Assignee:
- Black Gold Pump and Supply, Inc., Signal Hill, CA
- Patent Number(s):
- US 4668117
- OSTI ID:
- 6382065
- Resource Relation:
- Patent File Date: Filed date 1 Apr 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
42 ENGINEERING
DRILL PIPES
DESIGN
OPERATION
WELL DRILLING
DRILL BITS
MOLDING MATERIALS
NATURAL GAS WELLS
OIL WELLS
PLASTICS
RODS
SURFACES
THREADED JOINTS
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
JOINTS
MATERIALS
PETROCHEMICALS
PETROLEUM PRODUCTS
PIPES
SYNTHETIC MATERIALS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)