METHOD DETERMINES LEAK RESISTANCE OF 8-ROUND THREAD
Nandakumar K. Mallenhalli XL Systems Beaumont, Tex. Determining the internal pressure that a tubular joint can resist without leakage may reveal the reason why some API 8-round threads leak. The calculation presented here puts the concept in the right perspective and will aid an engineer in making a decision that can help avoid costly leakage in tubular strings. The method is based on recent technical papers published by ASME.