The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2018
Filed:
Jun. 05, 2015
Applicant:
Klx Energy Services Llc, Houston, TX (US);
Inventor:
Toby Scott Baudoin, Rayne, LA (US);
Assignee:
KLX Energy Services LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 31/00 (2006.01); E21B 28/00 (2006.01); E21B 34/12 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 31/005 (2013.01); E21B 28/00 (2013.01); E21B 34/12 (2013.01); E21B 2034/007 (2013.01);
Abstract
A friction reduction apparatus (FRA) positioned onto a pipe string comprises a tubular housing, upper and lower mandrels having variously configured fluid flow passages and ports, a valve and a shifter. Fluid travelling through the apparatus causes the valve and shifter to reciprocate, repeatedly opening and closing flow passages. Each of these cycles creates a pulse in the fluid column creating vibrations that reduce friction in the pipe string. The FRA can be used in conjunction with a ball or dart activated tool positioned downhole from the FRA.