21. Rumeila South has about 500 well heads . 22. Natural-gas processing begins at the well head . 23. In July 2010, a PTTEPAA team reboarded the well head platform to pressure test all the wells. 24. He may well head the list ." 25. There is a brick well head on the farm that is known as the " Gil Well ". 26. In oil and gas production a "'choke manifold "'is used to lower the pressured from the well head . 27. He fetches the wounded creature from the hospital and returns him and his companions to the well head . 28. The protesters blocked access to well heads , pumping stations, plants and offices in the Gulf Coast state of Tabasco. 29. For civilian contractors trying to repair damaged pipelines and well heads , each trip into the field is still dangerous. 30. Firefighters had dug a pit around the shattered well head to get close enough to cap the blazing gusher.
