Wellbore Tubulars
After an initial development period, a final dope-free
product was ready for testing. A waxy compound is applied directly on selected
premium threads, serving as both storage and running dope, eliminating
requirements for cleaning and redoping at the wellsite. The decision was made
to perform a field test.
View a Synopsis of
SPE 105851 published in JPT. 
This article, written by Assistant Technology Editor Karen Bybee, contains
highlights of paper SPE 105851, "Dope-Free Tubular Connections, Through
Research and Development to Field Trial and Implementation: A North Sea Case
History," by H.B. Andersen, M.P. Hummer, SPE, and R.C. Engell, SPE, Mærsk
Oil, and Lionel Verdillon and Arnaud Pardé, Vallourec & Mannesmann Tubes,
prepared for the 2007 SPE/IADC Drilling Conference, Amsterdam, 20-22
February.