Gulf oil spill: The Halliburton connection

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http://latimesblogs.latimes.com/greenspace/2010/04/gulf-oil-spill-the-halliburton-connection.html


Investigators delving into the possible cause of the massive gulf oil spill are focusing on the role of Houston-based Halliburton Co., the giant energy services company, which was responsible for cementing the drill into place below the water. The company acknowledged Friday that it had completed the final cementing of the oil well and pipe just 20 hours before the blowout last week.

In a letter to to Halliburton Chief Executive David J. Lesar on Friday, Rep. Henry A. Waxman (D-Beverly Hills) chairman of the House Committee on Energy and Commerce, and Rep. Bart Stupak (D-Mich.), chairman of the Subcommittee on Oversight and Investigations, called on Halliburton officials to provide all documents relating to "the possibility or risk of an explosion or blowout at the Deepwater Horizon rig and the status, adequacy, quality, monitoring, and inspection of the cementing work" by May 7.

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Cementing a deep-water drilling operation is a process fraught with danger. A 2007 study by the U.S. Minerals Management Service found that cementing was the single most important factor in 18 of 39 well blowouts in the Gulf of Mexico over a 14-year period -- more than equipment malfunction. Halliburton has been accused of a poor cement job in the case of a major blowout in the Timor Sea off Australia last August. An investigation is underway.

According to experts cited in Friday's Wall St. Journal, the timing of last week's cement job in relation to the explosion -- only 20 hours beforehand, and the history of cement problems in other blowouts "point to it as a possible culprit." Robert MacKenzie, managing director of energy and natural resources at FBR Capital Markets and a former cementing engineer, told the Journal, "The initial likely cause of gas coming to the surface had something to do with the cement."

In its statement, the company said, "Halliburton originated oilfield cementing and leads the world in effective, efficient delivery of zonal isolation and engineering for the life of the well, conducting thousands of successful well cementing jobs each year."

The company, which was once headed by former Vice President Dick Cheney, has been in the media spotlight before -- under under fire in recent years for its operations as a private contractor in Iraq.
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