Member Info for HeidHoncho

Which just goes to show that you have zero knowledge of how perched water production plays out.

Have you ever heard the saying “it has to get worse before it gets better” ?

boosim, the tanker is due on location on the 28th.

Petronordic now showing an ETA of 07:00 on the 28th July at the Lancaster location.

2 guys paid £9 (£10 - £!), and one guy paid £7 (£10 - £3, as he pocketed his own £1 reduction plus the £2 overage).

Simples.

Any perceived benefits from WI are trumped by one major issue in a fractured basement reservoir, that being the the continuity, or otherwise, of the fracture matrix between two points.

Given that the formation rock is impervious, the injection benefits can only be as good as the fracture matrix, as that alone is the only conduit for a WI enhanced recovery programme in an attempt to sweep residual hydrocarbons between the injection site/well (let us call that location A) and the producing well (let us call that location B).

i.e. If there is not a continuous and unhindered fracture matrix between location A and location B then injecting water from location A would be entirely fruitless as it would prevent the sweep of residual oil to the producing well at location B.

To that end, fracture matrix extent trumps any potential benefit that WI enhanced recovery in isolation could ever achieve.

If we have now agreed that neither porosity nor permeability in the normal sense is a hinderance, given that the hydrocarbons are resident within fissures/fractures, and given that oil normally (perched water being an exception) sits on top of water, surely the drive from the water source below the OWC should be a sufficient driver to push the residual oil towards the producing wells from below.

Do not underestimate the power of such a water source in fractured basements, as it is such that tidal influences can be identified during production, as will no doubt be recorded from any downhole gauges deployed.

As always, IMHO you understand.

mathematics, water injection, or otherwise, would have zero impact on either porosity or permeability.

Correct me if I am wrong, but porosity is relative to a solid’s (rock) capability to entrap/store liquid/gas (hydrocarbon, or otherwise), and permeability is the ease with which the said liquid/gas can travel within/through such a matrix.

Given that we are talking about a fractured granite reservoir, whereby granite is predominantly impervious, though this matters little as the hydrocarbons reside within large fissures/fractures contained within that reservoir geology.
So, in essence the hydrocarbons do not reside within the reservoir rock, but instead reside within a fracture matrix in the formation, therefore the “porosity” as such of the reservoir rock does not is essentially unimportant, though the propensity of the fracture matrix does.

Given that we are discussing “permeability” within a fracture matrix, where movement throughout it is less prone to any permeability issues normally associated with standard reservoir formations (sandstones/chalks/etc.).
To that extent, should we be more concerned about hydraulics issues, or laminar flow issues, etc. , as “permeability” as such in a standard reservoir does not exist within a fracture matrix, does it ?

Water injection is normally an enhanced recovery action, and neither impacts on porosity or permeability.
It is a hydraulic action that sweeps/drives remaining hydrocarbons towards the producing wells in a field, it is not as far as I am aware utilised to improve permeability within a formation, and it most certainly cannot be utilised to improve the porosity of a given formation.

IMHO, and based on my admitedly not overly expansive knowledge of reservoir magic.

I should have also added, chemical injection would also aid any wax formation from occurring (should there indeed even be a significant waxing issue).

Much in the same way that MEG injection is utilised to prevent hydrate formation.

It’s all pretty run of the mill stuff, and not anything peculiar.

IMHO

Wax (should there be any, has this been confirmed as a significant issue ?) forms exponentially as the temperature drops.

As the hydrocarbons travel from the reservoir up the production string and into the wellhead/tree there is an insignificant (as far as wax formation is concerned) temperature drop.

However, as the hydrocarbon departs the tree and begins its travel through the flow lines/manifolds/risers they are subject to the cooling of the frigid North Sea waters.
Even though there may be a modicum of thermal protection from any applied flow line/riser insulation, or to a lesser degree any thermal insulation from rock dumping, there is never the less an exponential increase in the temperature drop caused by the cooling properties of the water (think of it in the same manner as a radiator works).

Hence any pigging requirement being between the tree and the FPSO, as that is where the wax formation would occur, as that is where the cooling to the produced hydrocarbons would occur due to the refrigerant properties of the North Sea.

IMHO, though I would respectfully suggest all perform their own research.

"BC 201" not "VAL 201" ?

Did someone really just portray that Malcy was the "oil oracle" ?

I needed a good laugh, and that was just what the doctor ordered.

It could be logically argued that one can never lose that which one has never had.

N95 masks are not compulsory on public transport, merely face coverings (no standard requiring to be met).

"Plenty of big buyers. And sellers." ?

Where ?

I cannot find a single trade above £5k (okay, one was circa £5006), only a few trades in excess of £1k in value, and very few trades on the whole so far today.

All in all, a rather quiet day so far.

Are you sure you are commenting on the correct share ?

They are however responsible for the placement of the well and the chosen trajectory.

When utilising water injection in a reservoir as a means of enhanced recovery the location of the injector is carefully chosen to ensure that the sweep effect induced by the injection is optimal to the recovery potential achievable.

Therefore, merely randomly utilising an ineffective producer well, whose location in the reservoir was previously chosen for its optimum reservoir recovery potential and not its optimum injection potential, is logically it could be argued to be in a suboptimal reservoir location to be utilised for water injection purposes.

IMHO.

"How long is a piece of string ?"

Simple.

Twice the distance from the middle to the end.

Pure boy scout stuff, I thought everyone knew that.

p.s. satire intended ;-)

“ I'd love to know what 'Grampian Sceptre'is up to, but she's going to Lincoln, not Lancaster.”

Perhaps they deployed downhole gauges in the Lincoln Crystal well to obtain pressure or other well data from that well.

These may be a gauge type that do not require to be recovered to surface to download the data, but a type that sits normally idle (i.e. not continuously streaming data so as to conserve battery life), and are acoustically triggered by a vessel (in this case the Grampian Spectre) mounted (temporarily) device, which kicks the batteries into data transmission mode and the data signals then being recorded by the equipment temporarily deployed on the Grampian Spectre.

Upon transmission of this data from the seabed deployed gauges the surface vessel then acoustically triggers the batteries back to idle mode, thereby conserving battery power until the next time a vessel is deployed again in the future to download another 6 months or so of well data.

Just a thought.

tymers, “I’m backing ukog with 15 million currently and expect that to be 1 1p so soon enough” ?

Surely you meant you are backing them with 25 million “I’m holding my 25 million to 1p minimum”, as per your post of yesterday, don’t you ?

Come on, stick to the script, there’s a good lad.

On Sesame Street this week we have the letter U.

We will discuss the meaning of the word "united", and how the meaning of the same does not equate to denigrating those who you are intimating unity with by being disingenuous with your words.

Methinks the lady doth protesteth overly much.