RE: ESP24 Mar 2023 09:44
This is a direct communication i received from the company Maris cc’d from Nov 2022
I am told it does not align with someone’s memory however this is hard copy direct from company …folks can make their mind up. I not sure this overlaps with doc’s it is what i have always understood…but there could be cost changes i guess.
Many thanks for your email.
As was explained at the AGM, while each well has two downhole Electric Submersible Pumps (ESPs), only one is running, with the second available as a “back up”. Depending on the cause of any “issue” with the ESP, the Company is faced with a choice of
Switching between ESPs through a ROV visit to the wellhead
Engaging a rig to visit to wellsite and perform a workover to replace/repair the ESP
Doing nothing
The cost and time of performing each task varies, dependant on many factors although guidance was given if all equipment and services were freely available, and the weather favourable, the ROV approach would take of the order of 6-8 weeks and cost, in round numbers, in the region of US$500,000. A workover would, again in round numbers, cost in the region of US$30-40 million and take 6 months.
The decision to perform any of the tasks would be an economic decision and be highly dependent on the circumstances at the time, including equipment and services availability, weather conditions (both actual and predicted), time of year (weather impact), the current and predicted production rate, the current and predicted oil price, etc.
The specific question asked at the AGM was, given the issue with the pump previously encountered, what was the chance of success of it restarting if swapped? The answer was that there was a 75% chance of it restarting but its performance levels would be uncertain.
I hope this provides clarity on this point but do not hesitate to contact us again if you have further questions.
Kind regards