PROPOSED Changes to API RP 14C. Recommended Practice for Analysis,. Design, Installation, and Testing of. Safety Systems for Offshore. Production. API RP 14C CHECKLIST WELLHEADS AND FLOW LINES Wellheads furnish surface control (manual and automatic) and containment of well fluids and provide. Documents Similar To API – RP 14C Analysis, Design, Installation & Testing of Basic Surface Safety Systems for Offshore Production Platforms 7th Ed.

Author: Gataur Mulkis
Country: Ethiopia
Language: English (Spanish)
Genre: Education
Published (Last): 3 July 2006
Pages: 421
PDF File Size: 19.15 Mb
ePub File Size: 15.89 Mb
ISBN: 134-2-20285-930-5
Downloads: 27534
Price: Free* [*Free Regsitration Required]
Uploader: Tojabei

When this is done for every r; on the api rp 14c, the entire facility will be adequately protected. Once the api rp 14c exceed their normal ranges, safety devices respond to keep the variables from getting further out of range. Onshore facilities have been completely leveled to the ground because of released hydrocarbons, as occurred in the Phillips incident in Pasadena, Texas, in The most serious consequences are:.

For example, in a component with a normal operating range of to psig, pressure greater than psig or less than psig are abnormal conditions. RP 14C presents two groups of safety devices: For example, if a particular shut-down valve SDV keeps closing and nothing is out of range when investigated, the SAFE chart could be consulted to determine which specific api rp 14c cause the SDV to close.

Chokes and controllers keep the variables within their normal ranges. For example, the pressure on a flowline will fluctuate from reading to reading api rp 14c a specified period of time e.

Values at which the variables can api rp 14c found when things are going smoothly are called normal values. They accomplish this task through four approaches: Even though they occur less frequently than either normal or abnormal conditions, undesirable events are much more likely to lead to 14 consequences than either of the other two api rp 14c.

RP 14C [1] provides an analysis technique to identify potential abnormal conditions and prevent api rp 14c from occurring. The time and expense of purchasing, installing, and maintaining redundant devices would be significant 1c4 unnecessary. RP 14C [1] does an excellent job of 14v this information.

As long as flow is occurring, the liquid level within a process component will be changing. Whenever any of these worst-case consequences is at its most serious, the release of hydrocarbons is usually involved. If it was not possible to eliminate redundant devices, production facilities would contain many more devices without gaining any additional protection.

Recommended methods for safety analysis –

Whenever hydrocarbons are present in a process component, each of the four main process variables take on some value. Abnormal conditions do not always develop into a serious consequence, but it could happen. Api rp 14c devices have api rp 14c developed to protect production facilities. Concise, easy-to-audit documentation Minimized subjective decisions Consistent results This apii explains the basic concepts of protection used in the analysis, discusses the methods of analyzing the process, and establishes design criteria for an integrated safety system.

The entire production process is covered, and a step-by-step summary for performing a safety analysis is provided. Pr end device diverts or shuts off flow, sounds an alarm, or takes some other corrective action.

At each stage, action can be taken to keep the main api rp 14c variables from resulting in worst-case consequences. The seven subsystems that make up the ESS are an appi ESD system, a fire-detection system, a combustible-gas detection system, adequate ventilation, a liquid containment system, sumps, and subsurface safety valves.

Knowing about the possible effects of each undesirable event allows for a more rapid or more appropriate response to the undesirable event.

When chokes and controllers that normally keep the process variables in their normal ranges fail to function properly, the process variable being controlled can be outside its normal operating limits. If fully protected when analyzed standing api rp 14c, the analysis will be valid for that component in any configuration.

Popular Publishers

If the operator fails to monitor api rp 14c liquid level properly while the bypass valve is open, the api rp 14c level in the component could get too high or too low. Information about the detectable abnormal condition provides a tool for better monitoring and provides information about which types of safety devices can be used to warn of an impending undesirable event.

Offshore platforms have melted to the water line because of released hydrocarbons, as occurred in the Piper Alpha incident in the North Sea in the summer of Abnormal api rp 14c conditions could result in injury to personnel, pollution, and loss of assets. Several consequences can result from abnormal operating conditions.

The main purpose of ESSs is to shut in additional flow and minimize the effects of hydrocarbons that have already been released. Abnormal operating conditions can lead to one or more undesirable events that, in turn, could lead to injury to personnel, pollution of the environment, and damage to the facility or its equipment.

Maintaining normal operating ranges requires normal process api rp 14c. A api rp 14c level above or below the point at api rp 14c the dump valve opens or closes is an abnormal condition. This page explains the basic concepts of protection used in the analysis, discusses the methods of analyzing the process, and establishes design criteria for an integrated safety system. A SAT-required safety device also no longer may be required if the same degree of protection is provided by another device located elsewhere.

When components are assembled into a system, some devices can be eliminated. It is important to realize that when a device can be eliminated, the device is eliminated and not the required level of protection. For example, the liquid level within a vessel can api rp 14c from the bottom of the vessel empty to the top full. Primary and secondary protection information assists in determining which safety devices are best for that particular undesirable event. Hydrocarbon releases alone are often sufficient to cause injury to personnel e.

The following issues are key points about undesirable events.

SATs consider each api rp 14c event that could possibly affect the component and then, for each undesirable event, lists associated causes, detectable abnormal conditions, and required locations for installing the protection devices. When read horizontally, the information pertains to all the process components within a facility plus their safety devices.