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Archive for the ‘accidents’ Category

Fortunately, no human life was lost. However, the implications and consequences of the blowout are broad and wide ranging, including for the environment, for the petroleum industry and the Australian system of regulation of offshore petroleum operations – Tom Howe, Counsel for the Inquiry

Firstly, kudos to the Commission for promptly posting the hearings transcript.  Because of a change in schedule, the only speakers were two attorneys for the Inquiry Commission – Tom Howe and Andrew Berger.  A  senior representative of Atlas, the drilling contractor, is scheduled to testify tomorrow.

Observations from Day 1:

  1. The Commission appears to have carefully reviewed the submissions and seems to be well prepared for the hearings.
  2. From a regulatory perspective, this comment from Mr. Howe was particularly interesting: “The preliminary view of counsel assisting is that in relation to matters of wellhead integrity, a greater level of prescription may be necessary to ensure compliance with the apparently nebulous concept of ‘good oilfield practice’.”  I fully agree with this comment.  No matter what type of regulatory regime is in place, best industry practices should be clearly identified and companies should be legally obligated to conduct their operations in accordance with such practices.
  3. Quoting Mr. Berger: “one area of concern to counsel assisting is that PTTEP applied to suspend the H1 well using a … pressure corrosion cap instead of a cement plug as a barrier, this approval appears to have been granted in precisely 30 minutes.”   In a command-and-control type of regulatory regime,  the regulator has to be available and able to make timely decisions.  However, absent compelling justification, deviations from accepted practices should never be made in this manner.
  4. There were no surprises with regard to previously reported cementing problems.  However, according to Mr. Howe, both
    PTT and Atlas now accept that the failure to conduct a pressure integrity test after cementing the 9 5/8″ casing was a root cause of the subsequent blowout.
  5. I am puzzled by this statement from Mr. Howe: “As we understand it, PTT now accepts that PTT personnel on the West Atlas rig should have been alert to risks associated with cementing of the casing shoe and should have been more forthcoming when assistance was sought about the problem from PTT personnel located on shore.”  Is PTT (PTTEP) management trying to distance itself from the problem, reduce its liability, and pass the buck to the rig crew?  What a surprise! (sarcasm intended)
  6. More internal PTT finger pointing with regard to the missing PCC (corrosion cap): “PTT personnel on shore had been told in writing by PTT personnel on the rig that the PCC had been installed.”
  7. Good job by the two speakers for the Commission of Inquiry.

Looking forward to hearing the Atlas testimony tomorrow.

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Montara Blowout

Montara Blowout, TImor Sea

The Australian Commission that is investigating the 2009 Montara blowout in the Timor Sea will begin hearing testimony today (15 March) in Canberra.  According to the Commission’s website, the first witness will be a contract drilling supervisor.  It does not appear that the hearings will be televised or streamed online.  However, the guidelines indicate that the “transcript of the hearing will, subject to any confidentiality orders made, be placed on the Inquiry’s website as soon as it is available.” We are awaiting the testimony with great interest.

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We strongly caution natural gas power plants and other industries against the venting of high-pressure natural gas in or near work sites. This practice, although common, is inherently unsafe.

The U.S. Chemical Safety Board has issued an update on their investigation of the tragic explosion that killed six workers at a gas-fired power plant in Middletown, Connecticut.  The update includes important information for all facilities that handle natural gas and engage in gas purging.

This accident occurred during a planned work activity to clean debris from natural gas pipes at the plant. To remove the debris, workers used natural gas at a high pressure of approximately 650 pounds per square inch. The high velocity of the natural gas flow was intended to remove any debris in the new piping. At pre-determined locations, this gas was vented to the atmosphere through open pipe ends which were located less than 20 feet off the ground. These vents were adjacent to the main power generation building and along the south wall. The open pipe ends are visible here in the photographs.

gas venting from open pipe

In their investigation report, CSB will likely recommend alternative cleaning practices.

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Ocean Ranger

Exactly 28 years ago (15 February 1982), the Ocean Ranger sank on the Grand Banks east of Newfoundland in one of the worst tragedies in the history of the offshore industry.  Everyone associated with oil and gas operations was stung by the loss.  Those of us in the USGS/MMS North Atlantic District were particularly touched by this tragic incident.  We had seen what the North Atlantic can offer – “routine” 100 mph winds and 40-foot seas that tested equipment and personnel.  The 84 men who died were our brothers, working in one of the world’s most challenging environments to support their families and help meet North America’s energy needs.  The sinking of the Ocean Ranger and other offshore tragedies are not mere matters of chance.  We must remember these incidents and work together to prevent their recurrence.

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Montara Blowout

BOE  has reviewed reports and comments submitted to the Australian Commission of Inquiry.  Submissions by the operator, PTTEP, and the drilling contractor, Atlas, confirm the “street talk” about cementing issues and the absence of a second barrier in the suspended well.  BOE is troubled by a number of issues associated with this incident and has provided comments to the Commission.  We will continue to track reports on this and other offshore incidents.

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Measuring and comparing international safety performance is not possible without consistent, verifiable data.  Most existing data sets suffer from one or more of the following shortcomings:

  • Some workers (e.g. contractors) are excluded
  • Dependent on voluntary submissions
  • No verification process
  • Inconsistent definitions and classification procedures

The International Regulators’ Forum has taken a major step forward in measuring and comparing safety performance.  Detailed definitions and guidelines have been established for classifying offshore safety incidents and compiling the data.  These criteria are now being used to compile incident data for IRF countries. The IRF definitions and classification procedures could be broadly applied by industry and regulators to better assess safety performance and identify operational concerns.  Learn more.

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