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Posts Tagged ‘accidents’

Thanks to a reader, we have obtained a copy of a report on the Jack Ryan crane failure (August 2010) that killed one worker and injured three offshore Nigeria. As BOE readers know, we have been pursuing information on this accident for months.

At BOE our highest priority is drawing attention to and disseminating information on offshore accidents.  In that regard, we greatly appreciate the support we have received from readers.

Excerpt:

Link to Jack Ryan report.

We understand that Total is conducting an inquiry, and assume that Transocean has also investigated this accident. We hope those reports are made publicly available.

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Aban Pearl listing off Trinidad in August 2009

While our interest in the sinking of the Aban Pearl pertains to what went wrong and why, former PDVSA board member Gustavo Colonel continues to question Aban Pearl contracting irregularities. Is PDVSA refusing to release the report on the Aban Pearl sinking so as not to draw further attention to these contracting issues?

The whole Board is responsible for the loss of about 800,000 barrels per day of oil production; for the fraudulent certification of “proven oil reserves” in the Orinoco heavy oil region; for the irregular contracting, with a ghost company, of the offshore drilling barge Aban Pearl for twice the amount really paid to the owners of the barge; for the importing of 180,000 tons of food that later went to rot in Venezuelan ports but provided some of the members of the board with millions of dollars in criminal profits; and in numerous other corrupt practices that are well documented.

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Like the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling, the Montara Commission of Inquiry, the Norwegian government, and leading safety and regulatory authorities around the world, the IADC recognizes the risks associated with complex, multi-agency regulatory regimes. A single authority should be responsible and accountable for safety and pollution prevention at offshore facilities, and should draw on the expertise of other agencies and organizations as necessary to achieve performance objectives. 

The safety and environmental  risks associated with fragmented or compartmentalized regulation include gaps, overlap, confusion, inconsistencies, and conflicting standards. Industry and governmental personnel spend too much time coordinating with multiple parties and not enough time managing safety and environmental risks.

Link to IADC comments.  Key quotes:

IADC continues to be concerned by seemingly duplicative regulatory requirements imposed by the Coast Guard and BOEMRE, particularly where the agencies appear to have divergent views regarding the placement of regulatory responsibility.

One cannot holistically address safety when faced with the unyielding and overlapping demands of multiple narrowly-focused regulatory agencies.

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“It would seem to me, reading between the lines, that the cockpit crew weren’t confident of the information that was being presented to them on the data displays. Maybe — and it’s only a maybe — they took some action that led to the stall warning, and the plane stalling and then being unable to correct it.”

The above quote from a new article on the Air France crash should sound familiar to BOE readers. At both Montara and Macondo, the evidence of hydrocarbon influxes was clear, but personnel misinterpreted or ignored that information. Was this wishful thinking on their part? Was their training flawed? Lack of sleep? Overstressed? Distracted? These issues need to be carefully studied.

Improving well control preparedness is not simply a matter of modifying stack design.  The thought processes and human response tendencies that contribute to well control incidents and other accidents must be fully considered. Monitoring systems must provide timely, accurate, and understandable information, and training programs must teach workers not to rationalize negative signals, but to respond with caution pending further assessment. Trainers must remind students about past disasters and how they could have been prevented.

Nearly 20 years after it was written, Paul Sonnemann’s excellent paper on the Psychology of Well Control (excerpt below) is even more relevant today. We need to build upon and apply the lessons.

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PSA release and link to report:

The direct cause of the incident was that the container being lifted began swinging too much and got caught up in another container. A deck worker standing in an unsecured area was struck and injured.

This incident could potentially have killed the person concerned. Substantial material damage could also have been caused.

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Hundreds of witnesses expected.

The trial won’t proceed quickly, if the parties call all the witnesses on their lists.

Transocean’s roster of 304 included 82 of its own employees, 87 from oil company BP, and 18 from cement contractor Halliburton.

BP listed 71 witnesses from Halliburton, 110 others, plus anyone else who has been or will be deposed.

The United States listed 56 from BP, 32 from Halliburton, and 76 others.

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Today, the International Oil and Gas Producers (OGP) released the Global Industry Response Group (GIRG) reports.  GIRG was formed last July with the goal of better managing offshore safety risks. The organizational structure is illustrated below.

Deepwater Wells: Lessons and Recommendations focuses on the critical prevention programs, and is perhaps the most important of the GIRG reports. Since Macondo, the GIRG team and other industry committees have worked diligently on well planning and integrity issues, and are commended for their outstanding efforts. However, the recommendations presented in the GIRG report are surprisingly modest, and do not reflect the technological and management innovation that industry has demonstrated in pioneering offshore development.  The recommendations fail to break new ground, lack specifics, and, in some cases, appear to be a step backward. In short, the oil and gas industry is capable of much more.  Initial comments follow:

  • Incident data (problem): The absence of comprehensive and verified incident data is one of the “systemic” industry weaknesses identified by the National Commission. OGP has tried to address this problem for years, but has not had the industry-wide support needed to develop a credible program. GIRG has wisely recommended a Wells Expert Committee (WEC) to review selected incident data. However, the recommended program suffers from the same weaknesses that constrain existing OGP reporting programs. OGP must rely on “encouraging” its members to participate voluntarily, and non-members are not included. This type of voluntary program was not good enough before Macondo/Montara, and is certainly not good enough now.
  • Incident data (solution): Industry and regulators need an ironclad commitment that all operating companies will submit incident data in accordance with defined protocols. Contractor data must be included. Companies should execute binding agreements with OGP, or some other entity, to provide this information. The data must be managed by a completely independent entity that cannot, in any way, be directed by an industry advocacy group. Regulators and other independent representatives should be included on the management committee. Regulators should prohibit companies that don’t agree to submit these data from from operating within their jurisdictions. A comprehensive incident reporting and data management system is long overdue, and continued delays are not acceptable.
  • Montara: While GIRG is supposedly in response to both Macondo and Montara, the latter seems to have been largely ignored. The deepwater theme does not apply to the Montara platform, which was in only 80m of water. Despite the post-Macondo focus on water depth, shallow water was arguably a more significant contributing factor to the Montara blowout (batched completions using a cantilevered jackup, mudline suspensions, and two-stage platform installation) than deep water was at Macondo. Also, well capping, which was feasible and ultimately successful at Macondo, could not even be attempted at Macondo because of the manner in which these platform wells were suspended. Finally, GIRG  ignores the special gas migration and kick detection issues associated with horizontal completions like Montara, and the relief well rig availability and release issues that were never fully addressed during the Montara inquiry.
  • Emergency worldwide notification system: In conjunction with the incident reporting system, industry needs an emergency notification procedure that goes beyond safety alerts and requires the immediate attention of every operator and wells contractor. During the Montara inquiry, worldwide attention should have been drawn to the inability of the Montara operator to identify a hydrocarbons influx through the shoe track and into the production casing. Could an effective notification system have prevented Macondo? No one can say for sure, but the probability of a blowout at Macondo would have been greatly reduced if key BP and Transocean personnel had participated in discussions about Montara and the importance of proper negative pressure tests.
  • Dependence on regulator: On page 21 of the report, GIRG recommends that a company “carry out a more extensive programme of self-audit” when there is a lack of competent regulatory oversight. An operator should never depend on the regulator to verify its well or management programs, and should never relax its programs regardless of the level of regulation. Detailed regulatory reviews of specific drilling or management programs are never a substitute for operator diligence. Did the operators at Montara and Macondo rely on the regulator to protect them from themselves? Read the official investigation reports and make your own judgement.
  • Best practices: GIRG recommends “refraining from using the term ‘best industry practice’ until this definition is clarified; we prefer ‘good oilfield practice’ for the time being.”  Isn’t the clarification of best practices the role of groups such as this and industry standards committees? This attitude explains some of the technical recommendations in this report which may be “good oilfield practices,” but fail to raise the bar for safety achievement. Would you be satisfied with “good” if  family members were working on rigs or if operations were conducted off your coast? While “best practices” vary depending on the conditions and circumstances, it’s industry’s responsibility to identify those practices, and industry and regulators must set the bar high and keep raising it.
  • GIRG recommends established practices: Some of the GIRG recommendations, such as the “two-barrier” policy have been standard practice for most operators for years.
  • API RP 75: There are numerous endorsements of RP 75 as an important reference for management systems covering the design of wells and other activities.  RP 75 was a reaction to an MMS regulatory initiative 20-years ago to impose safety management requirements on offshore operators. BP, Transocean, and PTTEP had management systems that were generally consistent with the guidance in RP 75. GIRG needs to go beyond RP 75 and focus on improvements that will make safety management systems more effective.
  • API Bulletin 97, Well Construction Interface Document (WCID): Despite the complete absence of public attention, this is perhaps the most important post-Macondo initiative. It’s thus particularly disappointing that this document is now five months late. How does GIRG recommend the use of a document that is not complete and has not yet (to the best of my knowledge) even entered the balloting process? Another recommended and highly important document, updated RP 96 – Deepwater Well Design, has also yet to be finalized.
  • BOP recommendations: Nothing new or innovative is offered by GIRG. The report calls for 2 shear rams, but only one need have sealing capability, which means that the Deepwater Horizon stack met the GIRG specification. While many BOP advances require additional study, some (such as real-time function and pressure monitoring systems) already exist. Other GIRG technology recommendations are rather timid and generally in the form of suggestions for future study (e.g. study cement bond log technology).
  • Training: This section of the report is good, but doesn’t address deficiencies identified in the Montara inquiry and reviews of historical blowout data. Montara and other accidents have demonstrated that senior rig personnel may have limited understanding about well planning and construction practices. These topics are not covered in well control training programs. How does industry plan to address this major deficiency? While well planning is the responsibility of the operator (often a separate group than is represented on the rig), well control decisionmaking requires a fundamental understanding of well construction practices.  Also evident in the Montara testimony was the total absence of understanding on the part of operator, drilling contractor, and cementing personnel about the historical causes of blowouts. The cementers at Montara were unaware that gas migration/influxes during cementing operations were a leading cause of blowouts. Training programs need to be expanded to provide for the discussion of past accidents and how they could have been prevented.

					

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PSA has posted the Gullfaks B gas release report in English.  Also posted is the report on a lifting incident at Njord A.  The reports are comprehensive and timely.

The gas leak occurred during leak testing after maintenance work on a production well. The gas derived from a volume trapped between the downhole safety valve and the Xmas tree. It proved impossible to operate the emergency shutdown valves on the well. The leak lasted about an hour, with an initial rate of 1.3 kilograms of gas per second. The volume of gas released is estimated at about 800 kilograms.
No people were injured in the incident, but the leak created a serious position on the installation.

Gas Cloud - Gullfaks B



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The HSE has told Shell to submit a revised safety case for the Brent Charlie platform after gas was detected on its topsides following leaks on 12 January this year and 27 September 2010, Upstream can reveal.

Shell, which took the decision itself to close the platform after the January incident, has been battling for some time to resolve technically complex issues related to the venting of gas from inside one the platform’s huge concrete legs — Column 1 (C1) — and dispersing it effectively away from the platform.

The operator now expects the ageing Brent field to remain shut down for several more months.

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The following are significant accidents (based on the consequences or potential for consequences) that have been discussed on BOE, but for which no official company or governmental report has been released.  These accidents happened from 8 months to 3 years ago. I’m sure there are many others that we didn’t hear about or discuss. How do you effectively prevent accidents when reports are either not prepared, not released, or not completed in a timely manner?

The following accidents are are too recent (6 were just last month) to expect reports. BOE will publish links to the reports as soon as they become available.

If you are aware of other accidents that you think should be added to these lists, please let me know.

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