RE: Recent Production19 Jan 2025 10:34
I will add this Mirasol,
Decline is a natural process, of course it is, you take something out and don't replace it then it is guaranteed, but you measure decline by the daily gas produced, and this is not actually correct.
Reason is that decline in the industry is generally measured relative to pressures & temperatures, the flow side of it is the "effect" from these.
It is highly likely that the reservoir pressure at SLBY has not declined anything like the rate of production, why ?? because in a well that flows ONLY dry gas, the flowing pressure at surface is generally fairly close to the reservoir pressure as it comes into that well (assuming no limitation relative to permeability & porosity/mobility).
As this is a depleted field, the dew point, the point where the reduced pressure "induces" condensates, and then condensates start to "bank" in the near wellbore reservoir, and thus these liquids are then slowly produced with that dry gas, now you have added a % of liquid into the flowing column from reservoir to surface, that column is much heavier and therefore the surface pressure is much less than the reservoir pressure.
Can you counter that ? you could choke back the well at surface, which reduces flow and because you restrict at surface then the pressure to surface increases, and with that you reduce the amount of condensate trying to come to surface or be induced at reservoir.
it is why they will need the velocity strings installed at some point, as simple process to counter the liquids hold up they suffer.
So back to the point, the decline rate in production CAN be partially reversed with the right applications in the wells and the plant, it is a never ending requirement to counter the decline, but it is more than doable and I expect they will apply these and more countering works as time goes on.
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