- Will Transocean be releasing any details on yesterday’s “water ingress?” Will the results of their internal investigation ever be made public? (We are still waiting for their report on the fatal crane incident last August offshore Nigeria.)

- Will an independent investigation be conducted? Will the authorities in Ghana participate?
- Did the damage that the Marianas incurred during Hurricane Ike (2008) or Tropical Storm Ida (2009) in any way contribute to yesterday’s apparent structural failure?
- When will we have an international system that ensures (a) prompt, independent, and complete investigations of all significant accidents, and (b) the timely release of findings?
Posts Tagged ‘accidents’
BOE News Flash: Transocean Marianas in danger of sinking, 68 evacuated
Posted in Uncategorized, tagged accidents, crack, drilling, evacuation, Nigeria, offshore drilling, safety, sinking, Transocean Marianas on July 6, 2011| 10 Comments »
This information is unconfirmed but the source is highly reputable:
We just received word this morning that the Transocean Marianas rig has developed a large crack in one of the pontoons on the #5/#6 anchor chain locker while they were picking up anchors, and is currently taking on water and listing. The bilge pumps are keeping up (barely), but there’s certainly concern that it might sink on location. So far, 68 people have been evacuated from location.
According to RigZone, the Marianas was working offshore Nigeria. [Per one of our readers, (see comment below) Petrodata shows the rig operating offshore Ghana.]
More: The Marianas, spudded the Macondo in October, 2009, but was damaged by Hurricane Ida and towed to shore. The Deepwater Horizon was the rig that replaced the Marianas.
Low frequency, high consequence events
Posted in accidents, tagged accidents, API, blowouts, Center for Offshore Safety, macondo, Montara, personal safety, process safety, Regulation, risk management, safety, well control on June 27, 2011| 1 Comment »
I don’t buy the argument that industry and regulators have paid too much attention to personal safety at the expense of process safety. Casualties from falls, falling objects, helicopter crashes, and other workplace activities have been persistent, and safety management programs must emphasize practices and procedures that will reduce occurrence rates.
Also, process safety has hardly been ignored. API RP 14 C has proven to be an effective safety analysis procedure for addressing undesirable events associated with each process component of a production facility. For more complex facilities, Deepwater Operating Plans and API RP 14J, “Recommended Practice for Design and Hazard Analysis for Offshore Production Facilities, ” are good risk management supplements to RP 14C.
That said, we need better programs for sustaining the focus needed to further reduce the probability of low frequency, high consequence events. When memories about the most recent disaster start to fade, what do we do to keep workers on edge and prevent complacency? What more can be done to prevent events with enormous consequence potential? Some thoughts:
- Establish programs to remind employees about past disasters – how they happened and how they could have been prevented. How many offshore workers know the chain of events that led to the Santa Barbara blowout, Ocean Ranger sinking, Alexander Kielland capsizing, Piper Alpha fire and explosion, Ixtoc blowout, and other historic incidents? When discussing international incidents, we need to explain how our facilities or region might have been vulnerable under similar circumstances.
- Present information on minor incidents that could have escalated into disasters, emphasizing what could have gone wrong and why.
- Don’t just focus on the last disaster. While addressing the operational and organizational issues that surfaced at Montara and Macondo, we also must assess incident data and identify activities and practices that could lead to the next disaster.
- Operators should not rely on the regulator to manage their operations. Reading about Montara and Macondo, one senses that the regulators were called on to referee internal company disputes and protect the operators and contractors from themselves.
- Regulators should not be making day-to-day operating decisions. Regulators should make sure that the regulations are clear and that operators have effective management procedures for adjusting programs as new information is obtained. Regimes that provide for regulator approval of each activity or adjustment promote operator complacency and are not in the best interest of safety over the long term.
- Service companies and contractors must challenge operators and regulators. Operators should expect contractors to think and question, not to simply execute orders. There are impressive examples of contractors insisting on safety improvements, and being willing to forego business rather than compromise on safety.
- All sectors of the offshore industry should participate in standards development. Effective standards are dependent on diverse input.
- Industry and government leaders should promote innovation. Obvious weaknesses should be identified and industry should be challenged to propose solutions. For example, why do concerns about “false alarms” preclude automatic alarm activation (see Transocean’s Macondo report)? Data from redundant sensors can be analyzed by predictive software that is capable of quickly identifying real events. Similarly, why have advances in BOPE, including monitoring systems, been so slow? Why are BOP capabilities still poorly understood? Why are well integrity and casing pressure issues (producing wells) so common?
Transocean Releases Macondo Investigation Report
Posted in accidents, well control incidents, tagged accidents, blowouts, BOP, Deepwater Horizon, drilling, Gulf of Mexico, macondo, oil spill, safety, transocean, well control on June 22, 2011| Leave a Comment »
Links
Animation of Transocean’s BOP analysis
Transocean’s BOP Defense:
Forensic evidence from independent post-incident testing by Det Norske Veritas (DNV) and evaluation by the Transocean investigation team confirm that the Deepwater Horizon BOP was properly maintained and did operate as designed. However, it was overcome by conditions created by the extreme dynamic flow, the force of which pushed the drill pipe upward, washed or eroded the drill pipe and other rubber and metal elements, and forced the drill pipe to bow within the BOP. This prevented the BOP from completely shearing the drill pipe and sealing the well.
In other words, Transocean contends that properly maintained BOPE was not up to the task of shutting-in and securing a high-rate well. If true, this finding has significant implications for the offshore industry. I’m looking forward to reading the government’s findings on the BOP failure when the Joint Investigation Team report is issued next month.
Important Macondo Settlement
Posted in accidents, well control incidents, tagged accidents, blowouts, bp, Deepwater Horizon, drilling, float collar, Gulf of Mexico, macondo, Montara, offshore drilling, safety, Weatherford, well control on June 21, 2011| 2 Comments »
BP settled Macondo litigation with Weatherford, manufacturer of the float equipment equipment used in the Macondo well. The failure of this equipment was a key contributing factor in the Macondo blowout. Under the agreement, Weatherford will pay BP $75 million. This money will be applied to the $20 billion Macondo trust fund.
Weatherford is the first of BP’s contractors to formally agree with BP that the entire industry can and should learn from the Deepwater Horizon incident. Accordingly, Weatherford has committed to working with BP to take actions to improve processes and procedures, managerial systems, and safety and best practices in offshore drilling operations. BP and Weatherford will encourage other companies in the drilling industry to join them in this improvement and reform effort.
Comments:
- $75 million seems like a rather modest payment by Weatherford given the magnitude of Macondo damage costs. BP will “indemnify Weatherford for compensatory claims resulting from the accident.” Presumably, Weatherford’s sales agreements provide good legal protection.
- One of the root causes of the Montara blowout was also a float collar failure. That float collar was also supplied by Weatherford. I’m surprised that this common cause and supplier have received almost no attention. Of course, no one has paid much attention to Montara, either before or after Macondo. Had more attention been paid to the Montara inquiry, Macondo might have been avoided. (Note that most of the post-Macondo commentary still implies that deep water is the threat even though Montara was in 80 m of water and the root causes of Macondo were not water depth related).
- When do we learn more about the “improvement and reform effort” described in the quote above?
Western Australia vs. Federal Government Dispute Continues
Posted in accidents, well control incidents, tagged accidents, Australia, blowouts, Montara, offshore drilling, well control, Western Australia on June 18, 2011| Leave a Comment »
Resources Minister Martin Ferguson is determined to establish a single national regulator after the Montara oil spill in the Timor Sea leaked oil and gas condensate for more than two months in 2009.
The WA government is at odds with Mr Ferguson over plans for a national regulator and wants to maintain responsibility for oversight of the industry in the state.
Senator Eggleston and Senator David Bushby said the federal government had introduced the legislation to parliament before concluding ongoing negotiations with the WA government. Herald Sun
Meanwhile, still no news regarding any penalties for Montara operator PTTEP. Will there be none?
Safety Integrity Level (SIL) ratings for BOPE?
Posted in accidents, Norway, Regulation, well control incidents, tagged accidents, blowouts, BOP, Deepwater Horizon, macondo, offshore drilling, safety, SIL on June 16, 2011| 2 Comments »
Because of recent involvement with products and systems that have Safety Integrity Level (SIL) ratings, I read the comment (below) in the PSA Deepwater Horizon review with interest. While administrative and effectiveness issues must be carefully assessed, the application of SIL should be part of the BOP performance dialogue. SIL ratings may also be appropriate for entire well control or well integrity systems.
Today’s requirements stipulate a risk analysis for the control system of a drilling BOP, with specified minimum requirements for its safety integrity level (SIL). As a result of the DwH incident and of the fact that blowouts are not confined to drilling operations, the question is whether such an analysis, with a specified minimum SIL level, should also apply to all types of BOPs, including well-intervention models. In addition, consideration should be given in this context to whether other control and management systems related to well integrity/control exist which should be subject to such requirements.
Missing Accident Reports Update
Posted in accidents, tagged accidents, offshore, safety on June 13, 2011| Leave a Comment »
A month ago, BOE posted a list of major accidents for which no official company or government reports had been released. Below is the latest update on these accidents. If you have updated information, or if there are other events that should be added to the list, please let us know.
- Liftboat Russell Peterson collapses (fatality) – US (offshore Delaware) – May 2008 – still no report 3 years after the accident
- Gas leak and evacuation at offshore platform – Azerbaijan -August 2008 – no change
- Aban Pearl sinking – Venezuela – May 2010 – no change (news comment)
- Jack Ryan crane failure (fatality) – Nigeria – August, 2010 – Sea Trax (crane company) report posted; still no report from operator (Total) or drilling contractor (Transocean)
- Bayou Denis blowout – US (Louisiana State waters) – August 2010 – no change
- West Polaris BOP testing incident, conductor casing collapse – Brazil(?) – August 2010(?) – no change
- Jackup collapse during typhoon – China – September 2010 – no change
- Fire on Mariner platform – US – September 2010 – BOEMRE report published; Coast Guard evacuation and firefighting issues not yet addressed
The following recent accidents are on our “watch list.” Accidents are added to the “missing report list” when six months have elapsed since the accident.
- Apache gas leak and evacuation – US – January 2011
- Cherne II production platform fire – Brazil – January 2011
- Gryphon Alpha mooring failure – UK – February 2011
- Fatality (fall) on Apache platform – US – February 2011
- Jupiter flotel sinking – Mexico – April 2011
- Al Shaheen accommodations platform fire – Qatar – April 2011
- Fatality (fall) on Hillcorp platform – US – April 2011
- Diving fatality – UK – April 2011
- Visund gas leak, evacuation – Norway – April 2011
PSA releases summary of Deepwater Horizon review
Posted in accidents, Norway, well control incidents, tagged accidents, blowouts, BOP, Deepwater Horizon, drilling, macondo, Montara, Norway, offshore drilling, offshore oil, PSA, safety, well control on June 11, 2011| Leave a Comment »
From the standpoint of post-Macondo safety and regulatory issues, this concise summary is the most comprehensive and useful report that I have read since the blowout.
I have pasted (below) comments about information management – one of the many important topics considered in the report – and hope you take time to read the entire summary. It is only 12 pages.
Conducting a critical review of the information used to manage major accident risk is one of the measures relevant for the companies. This work could include an assessment of
the relevance, reliability and modernity of the indicators used to follow up risk trends
inappropriate use of indicators, incentives and reward systems
the need for better indicators and other information about the business which can be used to secure an early warning about a weakening in safety-critical barrier elements.
The PSA is of the opinion that the quality of information applied in managing major accident risk is also a question of what overview the players have of their own business, and thereby a question of the players’ own control. The PSA assumes that managing major accident risk cannot be outsourced. In light of the DwH accident, it could be relevant for the companies to review the processes intended to provide the necessary information about the business, assess in part how these processes support a culture of accountability and how various management and audit functions, third-party verifications and so forth contribute in this connection.
