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Some processes can have catastrophic results if not carried out the right way and within these processes we have the opportunity to physically help and ensure that operators follow the safe procedure. One way to establish this is by using mechanical interlocks. Interlocks eliminate human error by only allowing the right valves to be opened or closed in the correct order, leading operators safely through the strict work order of the task.
Linked to information systems or mimic panels, they not only eliminate human error, but also highlight any Permit Procedure applicable to a specific process. This allows the operator to request and receive all data needed in order to safely proceed to the next stage of a process.
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Flow charts, sequence diagrams and any other important information can be offered in an organized manner and make important process information locally available so that not only is the process completed safely, but the operators are aware of the reasoning behind the procedures. Albeit a sound safety concept, RP 75 also creates some confusion as to which equipment it applies to 3.
Such equipment may include vessels, machinery, piping, blowout preventers, wellheads and related valves, flares, alarms, interlocks, fire protection equipment and other monitoring, control and response systems. Process safety should leave no room for confusion and ambiguity. Taking into account the disastrous effects that failing mechanical integrity can cause, BSEE could therefore consider other important Recommended Practices that can maybe replace some of the ambiguous elements in RP One of these practices is RP This API recommendation specifically applies to the sizing and selection of pressure relief devices that provide protection against excessive pressure accumulation and is quite precise as to how to ensure mechanical integrity.
In articles 6. What it means is that dual relief valves need to guarantee an open path to the relief valve at all times. The safety relief valve is clearly identified as a critical part of equipment, as it is the most important safety measure in a particular process or even an entire plant.
Many leading oil and gas companies have already acknowledged this fact, and, as a result, they have incorporated the use of mechanical interlocks as a mandatory requirement on pressure safety valves PSVs. RP only focuses on safe working practices for pressure relief valves though, so the question arises whether it would be possible to define other potentially dangerous devices or processes that can easily be categorized as such. As a general rule of thumb, one can say that accidents in the industry are mostly related to procedures that do not occur frequently and at the same time can have catastrophic consequences when performed incorrectly: start-ups, shut-downs and shift handover processes are all good examples.
These revelations are supported by combined data from companies producing interlocking equipment. They have identified over 50 different processes that are part of a start-up or shut-down procedure. Pigging operations are an important example of this group, as they have already been internationally acknowledged as highly dangerous procedures where slight mistakes or lack in concentration can have severe and disastrous consequences.new.urbanreef.com/wifih-locate-device.php
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For all these processes, process interlocking applications have been developed, incorporated and proven to be effective by numerous companies in the industry. Unfortunately, none of these applications appear in any of the current legislative standards. A remarkable fact, as the results of human error and mistakes, particularly during start-up and shut-down procedures, can be seen to occur on a daily basis. Startup and shutdown procedures are clearly highly dangerous. Human error during these processes should therefore be avoided at all cost, as the effects can be truly disastrous. They have also implemented mechanical interlocks on a wide scale.
Their procedures leave no room for different interpretations and process interlocking quite often is a formal and mandatory provision to ensure strict adherence to procedures on critical operations, such as start-up and shut-down procedures, relief valve change over and pigging operations.
Following the installment of these procedures, these companies established excellent safety records and were able to substantially minimize accidents and spills. Recent incidents and accidents have led to increased regulations on process safety. Quite often, and just as in RP 75, these regulations are broad in scope and primarily focus on the identification and management of safety hazards.
Valve interlocks effectively guide operators through a designated procedure and create better overall safety awareness.
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The documentation team reviews current and past logs, permits and documents such as drilling and training records, frequency-based testing and BOP test records, IADC reports and accident and injury records. The physical inspection team conducts a thorough walkthrough of the rig looking for elements of noncompliance such as trip hazards, unmarked containers and equipment, marine debris and out-of-date slings. It is also common for the inspection team to conduct informal interviews with rig personnel to see if they are able to communicate their duties and responsibilities in order to determine their familiarity with operating equipment.
Safety inspections including general procedures, crane lifting operations, pollution and electrical elements.
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Environmental protection procedures including well completions, well work overs, decommissioning and abandonment and hydrogen sulfide H2S exposure. A: Almost every task performed onboard a rig is governed by either company policy or government regulation. It is the job of BSEE inspectors to assure that the rig is adhering to those policies and regulations and that personnel involved in operations are aware of the work environment and the hazards that may be present onboard. This is ultimately a checklist of inspection items compiled from all regulations and guidelines for safety and environmental requirements.
BSEE also uses other factors such as accidents, pollution events, civil penalties and incidents of noncompliance to evaluate the overall performance of offshore operators. A: There are many resources available to the public, but the best place to start is on the BSEE website, www. Organization is key when it comes to passing BSEE inspections. Operators should develop and maintain an organized filing system for rig documents and permits.
Operators may even want to physically highlight elements within documents that pertain to BSEE including frequency-based testing, signatures and dates for BOP tests, drills and training records.
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To ensure all work spaces are ready for inspection, operators should conduct their own thorough walkthrough of the rig. Think like a BSEE inspector. Lastly, be confident in your abilities and training. Remember to be courteous and professional to BSEE inspectors and to answer questions honestly.
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