RE: GOR11 Apr 2018 14:42
JoeSoap,
"The gas issue was raised by Edison in their November analysis, suggesting drilling an injection well in 2022."
Forgive me for splitting hairs, but Edison did not 'suggest' this: they simply mentioned it as a possible pathway to resolve the gas-flaring issue, IF it becomes an 'issue'.
I suspect some non-technicnical people on this BB might be starting to feel bogged-down by this gas subject, and possibly wondering if it's some new 'risk' we haven't been made aware of before. Which isn't the case. So I'm going to stick my neck out and try to clarify and simplify things for them below. Comment / correction by other 'techies' is welcomed, of course.
1 All oilwells produce 'associated gas', which as the oil rises up the well comes out of solution and assumes its true 'gaseous' form.
2 If the production train at surface is equipped with the right equipment and the proper export facilities (piplines) are in place, the gas can be compressed and sold to market for cash: it's an energy-producing hydrocarbon, after all.
3 If such facilities are not present (Hurricane's case), the gas can either be flared (cheap and easy, but a waste of an energy-source), or re-injected into the reservoir (expensive, and may compromise the reservoir's production characteristics).
4 In the UK and elsewhere, there are regulations in place regarding limits to the amount of gas which may be flared.
5 The amount of gas produced (and flared) is normally directly proportional to the flowrate the well (s) produces at.
6 Dr T says that the intention is to try to obtain maximum flowrate through the FPSO. Also he says that he doesn't want to re-inject the gas. However, gas production at maximum flowrates may exceed the regulatory maximum that can be flared, and so the wells may never be flowed at maximum crude production volumes after all. Unless, (smiley emoticon!) a pipeline is installed to solve the problem.
7 Now the kicker, and the unpleasant bit. Because of the 'climate change' mob, the regulations regarding flaring may possibly change (downwards) in the next few years. This is a 'political' issue which cannot be ignored, and a very good reason why O&G shareholders should be very careful to read candidates' energy manifestos before they go to the polling-booths...