ALAN JAY HIRSHBERG
Pilots at Hacienda Ln, Houston, TX
License number
Texas A5106222
Issued Date
Jan 2017
Expiration Date
Jan 2019
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
2 Hacienda Ln, Houston, TX 77024
Professional information
Torque Position Make-Up Of Tubular Connections
US Patent:
4962579, Oct 16, 1990
Filed:
Oct 2, 1989
Appl. No.:
7/415473
Inventors:
Mark C. Moyer - Missouri City TX
James B. Day - New Orleans LA
Alan J. Hirshberg - Houston TX
James B. Day - New Orleans LA
Alan J. Hirshberg - Houston TX
Assignee:
Exxon Production Research Company - Houston TX
International Classification:
B23Q 1700
US Classification:
29407
Abstract:
Threaded pipe sections are connected to form a tubular joint having proper sealing positioning at proper make-up torque. This improved connection includes a first pipe section having a registry mark of a prescribed width at a predetermined position on its exterior surface for the proper axial engagement of the pin member with the coupling or box member. This position is principally determined from finite element analysis. This position is the same for all pin members of a similar size, grade, weight and thread form and therefore can be applied with a template. The pin member and box member are continuously threaded together up to a minimum of an empirically predetermined torque range. This torque range is predetermined by a combination of finite element analysis and experimentation of representative joints for a certain type, size, weight and grade of pipe section. If required, the range is adjusted by empirically determined friction factors to account for different platings, surface treatment and lubricants.