Method of placing magnetic markers on collarless cased wellbores
Abstract
This patent describes a method of marking a wellbore casing in a manner such that the mark can be subsequently detected by a casing collar locator comprising placing a horseshoe-shaped electromagnet adjacent to the casing and energizing the electromagnet producing a magnetic marker at a location between the poles of the electromagnet.
- Inventors:
- Publication Date:
- OSTI Identifier:
- 5865986
- Patent Number(s):
- US 4572293
- Assignee:
- Standard Oil Co., (now)Amoco Corp., Chicago, IL
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: Filed date 31 Aug 1984
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; OIL WELLS; WELL CASINGS; IDENTIFICATION SYSTEMS; ELECTROMAGNETS; MAGNET POLE PIECES; ELECTRICAL EQUIPMENT; EQUIPMENT; MAGNETS; WELLS; 020300* - Petroleum- Drilling & Production
Citation Formats
Wilson, J G, and Crawford, G J. Method of placing magnetic markers on collarless cased wellbores. United States: N. p., 1986.
Web.
Wilson, J G, & Crawford, G J. Method of placing magnetic markers on collarless cased wellbores. United States.
Wilson, J G, and Crawford, G J. 1986.
"Method of placing magnetic markers on collarless cased wellbores". United States.
@article{osti_5865986,
title = {Method of placing magnetic markers on collarless cased wellbores},
author = {Wilson, J G and Crawford, G J},
abstractNote = {This patent describes a method of marking a wellbore casing in a manner such that the mark can be subsequently detected by a casing collar locator comprising placing a horseshoe-shaped electromagnet adjacent to the casing and energizing the electromagnet producing a magnetic marker at a location between the poles of the electromagnet.},
doi = {},
url = {https://www.osti.gov/biblio/5865986},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 25 00:00:00 EST 1986},
month = {Tue Feb 25 00:00:00 EST 1986}
}
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