How to Change Hierarchy in PDMS 3D Modelling

In many projects, there is 3D PDMS modelling procedure/work instruction which defines the hierarchy to be followed while 3D modelling. Example: In case of equipment, the nozzle shall be modelled as per the ascending order sequence. If we have modelled the nozzle in a different sequence than in the requirement, we have to reorder it as per the requirement in ...

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Offshore Engineering Checklist- Nozzle Orientation

Check Points Common for Horizontal or Vertical Vessel 1 Vessel modelling is completed and nozzle orientation is extracted from model & checked against latest vendor drawing. 2 30% Model review is completed and review tag related to subject vessel are closed. 3 Plant “North” is indicated. Nozzle orientation angle shall be w.r.t. north as ‘0’ degree(clock wise). 4 Any P&ID ...

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Furnace & Fired Equipment: Layout and Direct Fire Heater Piping Guidelines

Furnace and Fired Equipment: Layout guidelines: Within the battery limits of a process unit several furnaces in the same or different services, together with their associated close coupled equipment, may be located in a single area and shall be separated within that area only as required for operational and maintenance access. Fired heaters are a constant source of ignition and ...

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Guniting: Method for Fireproofing of Pipes

1.0 Introduction to Fireproofing Fireproofing is employed in refineries and petrochemical plants to minimize the escalation of a fire that would occur with the failure of structural supports and the overheating of pressure vessels. The damage that fire could potentially do very early on, could add significant fuel to the fire. This section is for the materials and construction of ...

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Piping Checklist for 90% 3D Model Review

90% 3D model review is a final review in 3 sets of model reviews, 30%, 60% and 90%. 90% 3D model review held when the 3D model has basically been completed. This occurs when all equipment, piping, valves, instruments, electrical, structural and other items have been modeled in 3D environment. In this review, the items to be reviewed will include ...

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Piping Checklist for 60% 3D Model Review

60% model review is one of the reviews planned in all the EPC projects execution at different stages- 30%, 60% and 90% of design completion. 60% 3D model review is an intermediate review which take place when the final structural steel, final equipment and the majority of the major piping runs, duct-work, instrument and electrical trays have been MODELLED. The ...

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Piping Checklist for 30% 3D Model Review

In all the EPC project which are been executed on 3D model, it is planned to have 3 formal model reviews at Stages 30%, 60% and 90% of design completion. These stages are linked to the project schedule in respect of the supply of engineering information from upstream disciplines (Process, Mechanical, Instruments etc.) being at a status of Preliminary, Intermediate ...

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Steam Turbines: Force/Moment Calculation

NEMA – SM 23 requires that the forces and moments acting on steam turbines due to the steam inlet, extraction, and exhaust connections should be evaluated by simple set of force/moment calculation similar to centrifugal compressors. These computations shall be done as below. The total resultant force and total resultant moment imposed on the turbine at any connection should not ...

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Dropped Object Hazards In Oil and Gas Industry

During any lifting operation, either from a supply vessel to the installation or from within the installation or plant itself, there is a potential risk when objects are being lifted for a dropped object accident to occur. Some of the cases wherein large objects may be dropped during lifting operations are: Construction, onshore, inshore or offshore, where large objects may ...

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