LRFD Derived Performance of a Qualified API Connection Population

Schwind, Brian E., Mobil E&P Technical Center
Curington, Donnie W., Stress Engineering Services Inc.
Miller, Richard A., Oil Technology Services, Houston


Tubular products are among the most critical items in a well, and the threaded connection can represent one of the more complicated and limiting mechanical features for tubular products. Previous tubular design methodology did not specifically address threaded connections, rather it applied safety factors to pipe body ratings. In contrast, Load and Resistance Factor Design (LRFD) methods specij7cally address connection performance. This work is a discussion of how the limit performance is being defined and quality systems are being revised for API connections in accordance with the objectives of the LRFD method for OCTG.

  • Document ID: OTC-7940-MS
  • Publisher: Offshore Technology Conference
  • Source: Offshore Technology Conference, Houston, Texas
  • Publication Date: 1995

Read More>>