Natural gas may be one of the cleaner sources of energy, but the petroleum industry's challenge in the well-construction process is to drill and complete wells to produce it safely and economically.

In completion of oil and gas wells, cement isolates the wellbore, prevents casing failure, and keeps wellbore fluids from contaminating freshwater aquifers. The basic factors engineers and operators ...

[Update 10/29/10: Halliburton has responded to the commission’s report—and unsurprisingly, the company deflects the blame and places the responsibility back on BP’s shoulders. Halliburton questioned ...

As an intermediate product, concentrate slurry is initially dried under pressure and stored prior to being processed into powder. Concentrate slurry is kept in silos where it tends to stick to the ...

WASHINGTON -- Tests performed before the deadly blowout of BP's oil well in the Gulf of Mexico should have raised doubts about the cement used to seal the well, but the company and its cementing ...

Washington (CNN)-- Oil giant BP and contractor Halliburton knew of potential flaws in the cement slurry used to reinforce the oil well below the Deepwater Horizon rig before it exploded in April, ...

WASHINGTON — Halliburton officials knew weeks before the fatal explosion of the BP well in the Gulf of Mexico that the cement mixture they planned to use to seal the bottom of the well was unstable ...

Halliburton Co. acknowledged late Thursday that it skipped doing a critical test on the final formulation of cement used to seal the BP oil well that blew out in the Gulf of Mexico. The company, which ...

BP had been told weeks before the explosion on the Deepwater Horizon caused the world's biggest accidental offshore oil spill that the cement slurry that would be used for the well was unstable, the ...