Multilateral junction depth record set in northwestern China

May 18, 2011
The world's deepest TAML Level 4 cemented multilateral junction was set in a PetroChina’s Tarim Oilfield Co. well in Xinjiang province in northwestern China, according to Halliburton.

By OGJ editors
HOUSTON, May 18
-- The world's deepest TAML Level 4 cemented multilateral junction was set in a PetroChina’s Tarim Oilfield Co. well in Xinjiang province in northwestern China, according to Halliburton.

Halliburton said the junction was set at 16,696 ft measured depth in the vertical section of a 7-in., 29 lb/ft liner. The main and lateral wellbores were cased and cemented, with both bores cemented at the junction.

The Technology Advancement for Multi-Laterals group established the TAML classification for multilateral junctions.