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.
|Published (Last):||4 June 2014|
|PDF File Size:||5.22 Mb|
|ePub File Size:||2.26 Mb|
|Price:||Free* [*Free Regsitration Required]|
RP 14C presents two groups of safety devices: Devices respond to one of the four major variables.
Operators are concerned mainly about the consequences that might result if abnormal conditions become extreme. Api rp 14c these devices became more common, industry standards were established, such as:. SAFE charts provide a mechanism for considering every component in the facility and aoi, for each component, to fully account for each required safety device.
For example, if the pressure within a component were to become too high, a component could rupture; a pressure too low within a component could indicate a leak.
Each api rp 14c component is analyzed for “worst case” input and output conditions.
Recommended methods for safety analysis –
SATs consider each undesirable 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. An explosion or fire can cause api rp 14c damage to equipment and api rp 14c, which can result in extensive injury, pollution, and facility damage.
The RP api rp 14c  safety analysis is based on the following premises. Knowing about the possible effects of each undesirable event allows for a more rapid or more appropriate api rp 14c to the undesirable event. Injury to personnel on a major scale also usually involves the release of hydrocarbons. However, if the maximum allowable working pressure MAWP of the flowline and associated equipment is greater than the maximum shut-in tubing api rp 14c of the well, the component is already protected and the device is not needed.
In reality, when the normal operating range is exceeded by only a small amount, it makes very little difference to the operation of the facility. Worst of all is a fire caused by or fed by hydrocarbon releases.
SACs provide a guideline for eliminating redundant devices while maintaining api rp 14c required level of protection. RP 14C  provides an analysis technique to identify potential abnormal conditions and prevent them from occurring. This page explains the basic concepts of protection used in the analysis, discusses the methods of api rp 14c the process, and establishes design criteria for an integrated safety system.
They include end devices and auxiliary devices, which are important not only to the system itself but also to the safety of the facility. Api rp 14c the variables exceed their normal ranges, safety devices respond to keep the variables from getting further out of range.
The eight undesirable events identified by RP 14C  are overpressure, leak, liquid overflow, gas blowby, underpressure, excess temperature fire api rp 14c exhaust-heated componentsdirect ignition source, and excess combustible vapors in the firing chamber fired components.
The entire production process is covered, and a step-by-step summary for performing a safety analysis is provided.
For example, api rp 14c pressure on a flowline will fluctuate from reading to reading within a specified period of time e. If every component is protected, apii system will be protected. Each of the eight undesirable events was examined further to determine the most common causes of the undesirable event, the effects of the undesirable api rp 14c, detectable abnormal conditions that usually precede the undesirable event, the most effective primary and secondary protective pai that could prevent the undesirable event, and api rp 14c optimal location for the placement of the required safety device.
Identifying all the components that handle hydrocarbons in a production facility would be overwhelming. There are times when the safety devices called for in SATs are not needed because engineering controls eliminate the need for a particular device.
Onshore facilities have been completely leveled to the ground because of 41c hydrocarbons, as occurred in the Phillips incident in Pasadena, Texas, in A safety analysis ties these two things together and is a tool for ensuring that a facility is protected fully.
According to RP 14C serious consequences usually are preceded api rp 14c some abnormal condition. Regardless of what a piece of equipment is called, it can be described as one of the following ten process components:.
The api rp 14c and expense of purchasing, installing, and maintaining redundant devices would be significant and unnecessary. The end device diverts or shuts off flow, sounds an alarm, or takes some other corrective action.
Recommended methods for safety analysis
Verifying that each and every aoi is protected without considering other components ensures the greatest degree of consistent protection. Every process component can be grouped under one of the 10 process components listed api rp 14c RP 14C and process-related causes of injury, pollution, and damage can be grouped under one of the eight undesirable events. SATs indicate which devices are needed on each component, and SACs api rp 14c which devices may be eliminated and what conditions must be met when eliminating api rp 14c device.
To address this problem, the API mandates a backup means of protecting the facility. For example, in a component with a normal operating range of to psig, pressure greater than psig or 1c4 than psig are abnormal conditions.