Patrick Kenny Statoil Stavanger, Norway The use of ester-based mud systems, instead of oil-based mud, helped drill difficult shales and high-angle well sections, including one of the world's longest ...

Dilution-based dual-gradient drilling (DGD) reduces casing strings and drilling costs while increasing hole size at total depth by injecting mud down an artificially-created annulus with a different ...

PennDOT sources say a one-mile section of road in Wyoming County has been closed due to the leakage of  mineral-oil based drilling mud from a truck near the Champdale Farm Gas Well. According to ...

The Natrona County Commission unanimously approved a request to allow a drilling-mud plant near Mills at its regular meeting Tuesday. But the plant operated by Baker Hughes probably will not result ...

NEW YORK (Reuters) - Chesapeake Energy said a leak of natural gas and oil-based drilling mud from a well near Douglas, Wyoming on Tuesday led to the evacuation of 67 residents from nearby homes. The ...