Raymond C Rowland

US Patent:

20140013821, Jan 16, 2014

Filed:

Feb 11, 2013

Appl. No.:

13/764337

Inventors:

Murray Mahoney - Dayton TX, US
Russell Steel - Dayton TX, US
Jeremy Peterson - Dayton TX, US
Raymond Rowland - Dayton TX, US
Rodney Bond - Dayton TX, US

International Classification:

G01N 19/02

US Classification:

73 9

Abstract:

A method of evaluating defects in a friction stir welded seam is provided, the method including: providing a welded sheet of metallic stock, the sheet having a top edge and a bottom edge, opposed side edges, and a joining seam formed between the opposed side edges by means of friction stir welding; isolating a preselected test specimen from the sheet of welded metallic stock, the specimen comprising either the top edge or the bottom edge and a test portion of the seam, with the test portion extending from an intermediate point to either the top or bottom edge and having a longitudinal axis, so that said test portion is disposed perpendicularly to the longitudinal axis, thereby establishing a test specimen face and a weld root; and detaching the specimen from the sheet and then testing the integrity of said weld root.

US Patent:

61617512, Dec 19, 2000

Filed:

Feb 18, 1999

Appl. No.:

9/252893

Inventors:

Lawrence W. Smith - Kingwood TX
Garry F. McClelland - Huffman TX
James R. Hyde - Dayton TX
Robert P. Badrak - Sugar Land TX
Raymond C. Rowland - Humble TX

Assignee:

Precision Tube Technology, Inc. - Houston TX

International Classification:

B23K 3100
B23K 2000
B23K 2800
B23K 120
B23K 5213

US Classification:

228125

Abstract:

A method of joining the ends of metal strip material together by positioning a consumable insert of weld filler material between the full thickness of the strip ends and below the lower surface of the strip ends a predetermined depth to establish a predetermined gap between the strip ends thus allowing for full arc penetration of the strip ends and providing a supply of the filler material to the root of the weld to be formed between the strip ends.

US Patent:

20200269276, Aug 27, 2020

Filed:

Feb 22, 2019

Appl. No.:

16/282971

Inventors:

- Houston TX, US
Neal A. LUX - Kingwood TX, US
Alex Paul SHEEHAN - Houston TX, US
Irma Irais GALVAN - Humble TX, US
Garry F. MCCLELLAND - Arvada CO, US
Raymond ROWLAND - Dayton TX, US
Stephen Michael HEJDUCEK - Houston TX, US

International Classification:

B05D 3/12
E21B 19/16
E21B 41/00
E21B 19/22

Abstract:

The disclosure relates to a method of conducting a coiled tubing operation. In one implementation, a method includes forming a tubing string, the tubing string having an outer surface. The method also includes applying a coating to an application portion of the outer surface of the tubing string. The application portion includes a portion of the tubing string that will be disposed in a horizontal section of a wellbore, and the coating has a surface energy lower than a surface energy of the outer surface of the tubing string to thereby reduce friction between the tubing string and a casing disposed in the horizontal section of the wellbore as the tubing string is lowered into the wellbore.

US Patent:

20200009629, Jan 9, 2020

Filed:

Sep 16, 2019

Appl. No.:

16/571748

Inventors:

- Houston TX, US
Raymond ROWLAND - Dayton TX, US

International Classification:

B21C 37/08
E21B 17/20

Abstract:

A method of manufacturing a coiled tubing string that meets specified material properties in a single continuous operation.

US Patent:

20180200770, Jul 19, 2018

Filed:

Jan 17, 2017

Appl. No.:

15/407855

Inventors:

- Houston TX, US
Raymond ROWLAND - Dayton TX, US

International Classification:

B21C 37/08
E21B 17/20

Abstract:

A method of manufacturing a coiled tubing string that meets specified material properties in a single continuous operation.