Perro Negro 6 Jack Up Rig Capsized and Sank – Oilfield Safety

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Perro Negro 6 Incident – Jack up rig capsized and sank was happen few year ago but we would like to share this case as a case study. You can watch what happen in the video below.

It is clearly seen that the rig capsized and sank in just few minutes. Jack up rig move is one of the most hazardous operation. Before a rig is moved, total number of people on board will be kept at minimum for operating the operation and non essential personnel will not be allowed on the rig.   There are several considerations that rig contractors and operators must be agreed before commencing any rig move operation. For this case, we would like to emphasize that even though all safety is in place, the bad thing can be happened.

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Schlumberger staff on gardening leave on 20% of pay but they can’t work anywhere else

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Oil and Gas Employees in Aberdeen have been placed on gardening leave by oil giant Schlumberger for up to a year on 20% of their annual salary, however during this period they are not allowed to work for any other employer.

Oil giant Schlumberger have introduced an incentivised leave of absence scheme in a desperate attempt to retain skilled staff amid the global downturn within the oil and gas industry.

Members who choose to opt into the scheme are required to take up to a one year break from employment on a fraction of their regular annual pay whilst not being allowed to work for anyone else in the same period.
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Coiled Tubing Equipment Overview

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Coiled tubing was developed in 1970s and is one of the most important pieces of well intervention equipment in the oil and gas industry. There are several different types of it available in the industry market with several different designs of a coiled tubing unit; however, the components of a coiled tubing unit are very similar. The main differences are performance capabilities and hydraulic power control systems. This article will give an overview of the essential components of a coiled tubing unit. (Read about the history of coiled tubing here – Introduction to Coiled Tubing (CT) in Oil and Gas)

Figure 1 shows the mounted truck coiled tubing unit, which is normally used for the land operation and Figure 2 is the coiled tubing unit used for operating in an offshore environment.

Figure 1 – Coiled Tubing Unit on a Truck (Courtesy of Stewart & Stevenson)

Figure 2 – Offshore Coiled Tubing Unit (Courtesy of NOV)

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Introduction to Coiled Tubing (CT) in Oil and Gas

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Development of the coiled tubing like we know it today started in early 1960’s. Now it is an important component of various workover and service applications. While still the use of Coil Tubing is about 75% in workover/service applications, the technical advancements have resulted in an increase in utilization of Coil tubing in drilling as well as completion applications.

Ability of performing remedial work on live well was an important driver associated with development of Coil Tubing. In order to achieve this feat, there was a need to overcome three different technical challenges: These were:

  • Continuous conduit that is capable of being inserted in to wellbore (the CT string).
  • Means of running the CT string and retrieving it in to or out of wellbore when under pressure (the injector head).
  • Device that is capable of giving a dynamic seal around tubing string (packoff or stripper device)
Coiled Tubing Unit

Coiled Tubing Unit (Credit: ShutterStock)

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IWCF Drilling Calculation Part 1 – 3 Review

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International Well Control Forum (IWCF) has provided useful learning material, which is IWCF Drilling Calculation Part 1 – 3, to drilling people. We will review all of them and see the content inside. Additionally, these ebooks are available to download from IWCF website. Thanks for their contribution to drilling industry.

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