Rotative Gas Lift Flow Rate

[dgd87]

Hi Everyone,

I work with rotative gas lift systems, sizing the compressors (recip´s), I'm not that familiar with the oil well, though. I have a doubt regarding the gas flow going to the well. There is a new well which currently produces 0.4 MMscfd of gas and the client wants the system to be installed there, they requiere 0.7 MMscfd injection gas, I know as it is a closed system we can inject more than 0.4 MMscfd since we can "steal" some gas at the beginning and add it to the injection flowrate. I don´t understand this quite well though, I'm sort of confused with the produced gas being 0.4 Mmscfd and the injected 0.7 Mmscfd and, if the gas production is 0.4 MMscfd how much can be taken from it and added to the injection?
Thanks in advance.

 

[Achy47]

Hi there,

I can offer some insight into your question about the gas flow in the new well. First of all, it's important to understand that gas flow in a closed system is a balancing act. In this case, the system is trying to maintain a certain pressure and flow rate in both the production and injection lines. So, if the production line is only capable of producing 0.4 MMscfd, then that is the maximum amount of gas that can be taken from it and added to the injection flow.

However, there are a few factors that can affect this balance. One is the pressure in the production line. If the pressure is higher than the desired level, then more gas can be taken from the production line and added to the injection flow. Another factor is the efficiency of the compressors. If they are able to compress the gas more efficiently, then more gas can be added to the injection flow.

It's also worth noting that gas production can vary over time, so the initial flow rate of 0.4 MMscfd may not always be the same. This means that the system may need to be adjusted accordingly to maintain the desired injection flow rate. Overall, it's important to carefully monitor and manage the gas flow in this closed system to ensure that it is operating efficiently and effectively.

I hope this helps clarify your confusion and good luck with your work on the rotative gas lift system!