Well Fluid Optimization
Well Fluid Optimization
(OP)
Good day All,
I am a Process Engineer with task to provide optimization scenarios for well fluids from different wells which are proposed to be re-opened for production activities. The data available to me shows the respective choke sizes, gross well flow, GOR, THP and FLP for each of the individual wells. The distance between each of these wells to the flow stations varies.
So far, I understand that the higher the choke size, the higher the possibility of increase GOR.
How can I achieve production optimization from each of the wells?
Are there equations that relate the choke size with the flow rate.
Kindly revert back if further information is required.
I am a Process Engineer with task to provide optimization scenarios for well fluids from different wells which are proposed to be re-opened for production activities. The data available to me shows the respective choke sizes, gross well flow, GOR, THP and FLP for each of the individual wells. The distance between each of these wells to the flow stations varies.
So far, I understand that the higher the choke size, the higher the possibility of increase GOR.
How can I achieve production optimization from each of the wells?
Are there equations that relate the choke size with the flow rate.
Kindly revert back if further information is required.
I am what I am by His grace





RE: Well Fluid Optimization
You've been set on a fools errand that will only be successful by the rankest of coincidence.
David Simpson, PE
MuleShoe Engineering
Law is the common force organized to act as an obstacle of injustice Frédéric Bastiat
RE: Well Fluid Optimization
Thank you. Your comments are noted.
I am what I am by His grace
RE: Well Fluid Optimization
What are you trying to optimise? Gas or Oil flow? As zdas04 says, this is a reservoir engineers function much more than surface proceesing. if you over flow a well you can reduce the overall recovery from the reservoir, cone up water from below or create too much gas flow if you fall below the reservoir bubble point. This is not a process engineers role to do downhole and reservoir modelling / maximise recovery.
To enhance liquid recovery, you want o minimise gas in the well bore and hence although it seems strange, a higher pressure is needed to get more liquids. However this could be an illusion if the "liquid" then flashes off to become gas at some other point in the processing train.
you can get some pretty crude flow rate estimated from percent open versus valve CV and then calculate flow, but it has a very low accuracy, especially if you've got two phase flow through it.
Even if by some miracle you "optimise" the field one day, at the end of the week something will change in the reservoir and you need to do it all over again.....
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Well Fluid Optimization
I am what I am by His grace
RE: Well Fluid Optimization
I didn't say that it was a Reservoir Engineer function, I said it was a well-by-well function (I've done a lot of it as a surface function). Opening a choke can indeed increase coning and increase GOR which is both a reservoir function and a production function and the reservoir GOR does not necessarily have anything to do with the production GOR.
I do absolutely agree with your last statement. I keep seeing Process Engineers try to "get it right" and if they should happen to get close, they tend to run to the next project and can say "it was right when I left, what did you guys do wrong?"
David Simpson, PE
MuleShoe Engineering
Law is the common force organized to act as an obstacle of injustice Frédéric Bastiat
RE: Well Fluid Optimization
aside - Its the little inch brother not the big one(!)
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Well Fluid Optimization
David Simpson, PE
MuleShoe Engineering
Law is the common force organized to act as an obstacle of injustice Frédéric Bastiat
RE: Well Fluid Optimization
I hate Windowz 8!!!!