Posts Tagged ‘well control’
Halliburton Stunner
Posted in accidents, well control incidents, tagged accidents, blowouts, Deepwater Horizon, drilling, Gulf of Mexico, macondo, National Commission, offshore oil, oil spill, safety, well control on November 8, 2010| Leave a Comment »
Statoil Publishes Report on Gullfaks C Incident
Posted in accidents, well control incidents, tagged Gullfaks, Norway, safety, Statoil, well control on November 8, 2010| Leave a Comment »
The incident occurred on 19 May 2010. We appreciate Statoil’s timely completion and public release of the report. The report is in Norwegian, but an English summary is provided.
What happened:
- A platform well on Gullfaks C was drilled in managed pressure drilling (MPD) mode to a total depth of 4800 meters.
- During the final circulation and hole cleaning of the reservoir section, a leak in the 13 3/8” casing resulted in loss of drilling fluid (mud) to the formation.
- The loss of back pressure led to an influx of hydrocarbons from the exposed reservoirs until solids or cuttings packed off the well by the 9 5/8” liner shoe.
- The well control operation continued for almost two months before the well barriers were reinstated.
Statoil’s near-term action items:
- Develop new acceptance criteria and best practices for MPD on Gullfaks.
- Update pressure prognoses for the field.
- Document that the shear ram is capable of cutting the drill string.
- Change the shift relief plan for the Drilling Supervisor and Toolpusher on Gullfaks C.
- Review the procedures for communication and mustering with the emergency preparedness organization.
National Commission Hearing: 8-9 November
Posted in accidents, well control incidents, tagged accidents, blowouts, Deepwater Horizon, drilling, Gulf of Mexico, macondo, National Commission, offshore oil, oil spill, safety, well control on November 7, 2010| Leave a Comment »
The hearing will focus on the causes of the Deepwater Horizon explosion and will be broadcast live on C-SPAN2. The panelists and speakers are listed here.
Macondo spill cost estimate is now $40 billion
Posted in accidents, well control incidents, tagged accidents, blowouts, bp, Deepwater Horizon, drilling, Gulf of Mexico, macondo, offshore oil, oil spill, safety, well control on November 2, 2010| Leave a Comment »
BP is now estimating total Macondo response and damage costs at $39.9 billion. I would guess that only 4 or 5 other operating companies could have survived this type of hit.
Hopefully, every offshore operator is keeping this in mind when formulating safety management programs and training, research, and standards budgets. Companies claiming that such disasters couldn’t happen to them are simply demonstrating that they could, because no company with a proper safety culture would make such a statement.
Chevron tests point to flawed Macondo cement
Posted in accidents, well control incidents, tagged accidents, blowouts, cement, Chevron, Deepwater Horizon, drilling, Gulf of Mexico, macondo, National Commission, safety, well control on October 28, 2010| Leave a Comment »
Chevron’s report states, among other things, that its lab personnel were unable to generate stable foam cement in the laboratory using the materials provided by Halliburton and available design information regarding the slurry used at the Macondo well. Although laboratory foam stability tests cannot replicate field conditions perfectly, these data strongly suggest that the foam cement used at Macondo was unstable. This may have contributed to the blowout.
Further:
The documents provided to us by Halliburton show, among other things, that its personnel conducted at least four foam stability tests relevant to the Macondo cement slurry. The first two tests were conducted in February 2010 using different well design parameters and a slightly different slurry recipe than was finally used. Both tests indicated that this foam slurry design was unstable.
Drilling Ban to End This Week
Posted in accidents, drilling, Offshore Energy - General, well control incidents, tagged accidents, blowouts, Deepwater Horizon, drilling, Gulf of Mexico, macondo, moratorium, safety, well control on October 12, 2010| Leave a Comment »
The White House said Tuesday the government will lift a moratorium on deep water oil drilling in the Gulf of Mexico “very soon” – likely this week. Washington Post
Too many distractions before Macondo blew?
Posted in accidents, well control incidents, tagged accidents, Australia, blowouts, BOEMRE, Coast Guard, Deepwater Horizon, drilling, Gulf of Mexico, macondo, Montara, safety, well control on October 9, 2010| Leave a Comment »
There were so many simultaneous activities — starting with the displacing of mud to the pumping of fluids overboard — it was difficult to see what was going on. John Gisclair, Sperry Sun (see Times Picayune summary of yesterday’s BOEM-Coast Guard hearing)
John Gisclair
Too much at once? Hurrying to finish the job? Cost concerns? No one in charge? Distracted by managers visiting the rig? One or more of these human and organizational factors appears to have contributed to the blowout.
Similarly, the rigid commitment to “batching” the development wells (for efficiency reasons) seems to have been a factor contributing to the Montara blowout in the Timor Sea. If after removing the corrosion cap on the production casing, the work on the H1 well had continued in series (i.e. casing tied-back, BOP installed, and well secured) before moving on to another well, this blowout may have been prevented.
At both Macondo and Montara, time pressures (perceived or real) may also have affected the way negative-pressure tests were conducted or assessed. These tests should have detected the influx of hydrocarbons via the shoe track.
Views on Vancouver
Posted in conferences, tagged accidents, blowouts, Canada, IRF, macondo, offshore oil, safety, vancouver, well control on October 8, 2010| Leave a Comment »
In less than 10 days, we kick off the International Regulators’ Offshore Safety Conference in Vancouver. The venue is top-notch, the list of delegates is long and impressive, and the speakers are world leaders in offshore operations, safety, and regulatory practices. Everything is in place for a productive conference; now it is up to us. We must challenge the speakers, each other, and conventional wisdom if we want to make a difference. We need to understand where we have been, and then focus on where we are going. In that regard, the “Roundtable Discussions” will be an important part of the conference. If you plan to attend the conference and would like to assist with the Roundtable Sessions, send a note to edanenberger@gmail.com.
Here are ten issues that I look forward to discussing with other delegates:
- How do we develop a comprehensive and verified international incident data base? The IRF data and some of the industry efforts are good starts, but where do we go from there?
- What other performance data should be routinely collected?
- How do we assess emerging and hidden risks? In that regard, I am looking forward to Torleif Husebø’s presentation: PSA’s Risk Level Measuring Scheme and how available data are collected and used.
- Looking beyond centralizers, long-strings, and corrosion caps, what are the management lessons from Macondo and Montara?
- Is there such a thing as a hybrid regulatory regime? While a certain amount of prescription is necessary in any regulatory system, how can a regime have both “command and control” and “safety case” elements? Aren’t they contradictory?
- How do we develop and encourage safety leaders? How do we measure their progress. In that regard, I am really looking forward to Mark Fleming’s presentation: Know where you are going rather than where you have been! A Leaders’ guide to continuous safety performance measurement
- Can regulators inhibit industry safety achievement? How do we encourage innovation and leadership? How do we deal with those who have no interest in either?
- Should standards participation and safety research be a part of every operator’s safety management programs?
- Can the international community help provide stability and perspective during crises like Macondo?
- What are the next steps in international cooperation on offshore safety?
Post-Macondo Drilling Safety Rule Posted by the Federal Register
Posted in drilling, Regulation, tagged BOEM, BOEMRE, drilling, Drilling Safety Rule, Gulf of Mexico, macondo, offshore oil, safety, well control on October 7, 2010| Leave a Comment »
The complete interim final Drilling Safety Rule is now posted on the Federal Register site. This rule was announced on 30 September along with the Safety and Environmental Management System rule. The latter rule has not yet been posted by the Federal Register.
The Drilling Safety Rule is effective immediately. With regard to comments:
While BOEMRE will not solicit comments before the effective date, BOEMRE will accept and consider public comments on this rule that are submitted within 60 days of its publication in the Federal Register. After reviewing the public comments, BOEMRE will publish a notice in the Federal Register that will respond to comments and will either:
1. confirm this rule as a final rule with no additional changes, or
2. issue a revised final rule with modifications, based on public comments.
National Commission Releases 4 Draft Staff Papers
Posted in accidents, well control incidents, tagged accidents, blowouts, Deepwater Horizon, drilling, Gulf of Mexico, macondo, National Commission, offshore oil, safety, well control on October 6, 2010| Leave a Comment »
