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@LittleInch, Schematic loaded

Hello, I currently have two design proposals I am assessing related to level control of a high-pressure separator. To give context, the oil stream from the separator passes through a heat exchanger (shell and tube) then a crude oil heater to the low pressure separator. Whilst assessing the two...

Hello, I am enquiring about a design-related aspect in the consideration of packed distillation columns. Is it common to have the bottoms liquid draw off through the reboiler or through a bottoms nozzle on the column itself? I have indicated a screen grab on the reboiler draw-off option but...

I recently enquired for a vendor to demonstrate that the provided compressor design considered inlet gas blowdown requirements as no vent port had been provided that would support this. The vendor indicated that inlet blowdown can be conducted via the recycle line by opening the bypass line on...

We had a similar problem which was easily solved by compressing the LP gas to HP value at the GS.

Jack, I would concur with others before me that provision of independent high and low switches for level detection would give you that assurance you want. However as you have indicated help was given by the instrument engineer nonetheless take it into consideration that the use of sight...

MortenA, Thank you for the response. Yes indeed going full rated would be a sound option however the economics may not support it (roughly over 50 well-pads). The HIPPS option may also suffer from poor reliability since the complexity of managing a high number of such systems creates an...

Great we hold a similar view. Thus goes the question, for a line that is predominantly water, why make it part of an emergency shutdown logic especially since it is not hazardous in any way!

Hello Emmanuel, thanks for the response My understanding is that an SDV refers to an actuated valve which is closed during partial or total process shutdown of system to which the valve protects whereas the ESDV is an actuated valve which is closed when triggered by a signal from an ESD level...

I do thought the same. However if anyone here has experience in the use of cross oil exchangers, I would love to know their views on such a solution, challenges and benefits plus any control configuration aspects.

What i meant is that the actual valve is specified as an ESDV. Yet I think having it as an SDV is sufficient.

Our current design has consideration of an ESDV being placed on a produced water line from an HP separator of an oil processing train. Personally I find this strange since the fluid here is water(almost),not flammable, not explosive and not hazardous. The SDV would be sufficient. Although an...

Two bidding contractors have provided different solutions for the pre-heating of crude oil from an HP separator prior to crude oil heater and LP Separator in a CPF oil processing train. I am conversant with the operation of the S&T solution however I am not conversant with the cross oil...

You can create hierarchy blocks and merge the flowsheets however care should be put on meeting the connectivity constraints of the blocks.

Hello All, I am seeking your view on if there are any benefits or challenges you have seen in the deployment of Polymer flooding as an EOR option especially in heavy/waxy fields. Cases such as deployment at the Mangala fields sound very good but I fear not enough information is availed to...

Thank you all for the responses The decision not to use HIPPS is because its reaction time will be too slow to fast transients such as blocked outlet scenarios. So the idea is since a bladder accumulator can dampen the pressure increase, it would give enough time for the HIPPS to react...

Dear All. A client's current preferred OPP strategy for wellpads (to flowline) is to use an instrumented PSHH based first protective layer and PSV that releases to emergency drilling pits as second layer. Because of the environmental sensitivity of the location, use of HIPPS would have been...

I'm currently reviewing a set of P&IDs for a CPF and was surprised as to why such a routine would be considered especially vessel pressure control (HP separator) using IGV since as I stated the slow response may surge trip the compressor. The vapor line from the separator heads to gas...

I would love to know your views on the efficiency to control vessel pressure (HP Separator) using compressor IGV. My view is a response from the pressure of the vessel may be too slow leading to a surge in the compressor. What is your view? Do you an alternative to such a control routine.