Alberta Basin algo

Rosetta Resourcesin South Alberta Basin-viritelmä kehittyy. Alla oleva perjainteisesta tulostiedotteesta:

"Alberta Basin Bakken Shale

During 2009, Rosetta made significant progress on evaluating its extensive position in the Alberta Basin Bakken exploratory play.

To date, the Company has drilled, cored, and logged three vertical delineation wells across a large areal extent of its acreage position to assess the resource potential of its southern, northern, and downdip lease positions. All three of these delineation wells encountered oil-bearing reservoirs in the Banff (Lodgepole), Bakken, and Three Forks intervals, as well as the Nisku located a few hundred feet below the Three Forks. Additionally, reservoir pressures taken from the Banff, Bakken, and Three Forks reservoirs all indicated that these reservoirs are over-pressured. Based on preliminary reservoir analysis from ongoing core and log studies, we believe the original oil in place ("OOIP") of this system across these three delineation wells (which are located more than 28 miles apart on strike and more than 8 miles apart on dip) ranges from 12.5 to 15.3 MMboe per square mile. If correct, this OOIP on a per square mile basis compares favorably to the Williston Basin Bakken play. Based on this encouraging data, all three of these vertical delineation wells were plugged back and operationally set up to re-enter and test at a later date.

During the fourth quarter of 2009, the initial vertical delineation well, the Tribal Gunsight #31-16H was drilled horizontally to a total measured depth of 9,206 feet (4,837 feet TVD) with a lateral length of 4,100 feet. This well was then fracture-stimulated and produced oil to test facilities on location, thus confirming the prospectivity of this play. To corroborate fluid flow back rates, production and tracer logs were run to determine fracture placement and effectiveness. These logs indicated that only 20% of the stimulation was placed in zone. Given the implied production rate, the Company remains very encouraged about this large unconventional oil position. Rosetta continues to add acreage in the play and has grown its position to 254,000 net acres.

As planned, operations in the Alberta Basin are currently suspended for the winter season. However, detailed technical work is ongoing in an effort to improve the Company's understanding of the most effective way to unlock the commerciality of the play"

Neliömaili on n.650 eekkeriä, eli yksi osio(section). Tuo 12.5-15.3 miljoonaa boeta on vain arvio, joka perustuu melko rajalliseen tiedon määrään(28 mailin pätkällä olevan kolmen kaivon core ja logit kertovat kyllä aika paljon). Vertailuksi OOIP Kanadan Bakkenissa on 5 miljoonaa boeta, Pohjois-Dakotassa 7-9 miljoonaa, Shanavonissa 7-10 miljoonaan, Saskatchewanin Vikingissä 5-10 miljoonaan ja Cardiumissa 3-10 miljoonaan. Tuossa ei mainita mahdollisien reservien jakautumista per muodostelma.
Paineet tuolla ovat ilmeisesti varsin hyvät minkä vuoksi voisi olettaa varsin suuria alkutuotannon lukuja per kaivo.

Alun perin kiinnostus tätä kohtaan heräsi Crescent Pointin ostettua viime vuoden lkopulla Wave Energy, jolla oli mineraalioikeusia tuolla seudulla(ei kuitenkaan aivan Rosettan maiden vieressä). Pitäisi varmaan tarkistaa yhtiöstä mitä oikeuksille on tehty tai aiotaan tehdä.

Conference callista lisäys:
Mitä ilmeisimmin potentiaalisin vyöhyke TF-S, koska tuota ilmeisesti tavoiteltiin ensimmäisellä horisontalilla. Öljyn jakautumisesta vyöhykkeittäin ei yhtiö suostu tässä vaiheessa jakamaan tietoa. Kaivojen etäisyys todistaa että kyse on yhteisestä muodostelmasta eli kentästä.
Öljy tuolla on raskaampaa (30 API) kuin Williston Basinin Bakkenissa(40+ API) ja rikkipitoista.

Aiheesta aiemmin täällä ja täällä. Tuohon jälkimmäiseen linkkiin liittyen voisi todeta otsikko ei oikein vastaa todellisuutta.

LISÄÄ 02.03.2010

Alla Quicksilver Resourcesin Conference Callista(sitaatit ovat useammalta sivulta)

"On the oil side, we are working on a couple of projects that look very interesting and could have significant impacts on the company. The first is what is referred to as the Southern Alberta Bakken play where several companies have drilled projects – have drilling projects underway. Quicksilver has an acreage position of over 130,000 net acres held by shallow Cut Bank sand oil production in Glacier and Toole counties in Northwestern Montana.

We will be monitoring results from wells offsetting our block as close as a mile away and at the same time, implementing a plan to drill a couple of horizontal wells to test the Bakken and other formations on our block. We have excellent well control to map the Bakken in this area. What could be significant to the economics is the shallow depth that will hit the Bakken between 3,000 and 4,000 feet"

Toby Darden

There have been some announcements from some of the producers offsetting our acreage block and I'll leave those announcements to their announcements, but they've seen oil over a number of test wells. That corresponds well with initial looks we had at the Bakken in the 3,000 to 4,000 foot range when we looked at it a couple of years ago and we are watching their progress with interest, but are planning for our own testing at the Bakken as well.

Glenn Darden

Yes. Brian, as you know, the techniques for recovering this oil have really moved quite rapidly over the last couple of years. So we took a look at this maybe four years ago or so, something like that, knowing that we've got the Bakken in our lease block of course, the deposition there and some interesting zones above and below the Bakken. We just have it really put a lot of capital toward that project as you can see with our other projects.

But we are looking at it, we are going to spend some money this year to drill some wells on our leases, but again, we are in a nice position of having all this acreage held by production. So we don't have any time fuse burning. So we will watch what's happening around us as well"

"As far as the Southern Alberta Basin as it's referred to in Montana, we are selling oil every day. So that market gets a bit of a discount to, I guess, normal crude prices. Rick, what is that – or Phil, maybe $5 a barrel, something like that?"

"Manav Gupta – Canaccord

Hey guys, this Manav for Irene. Just wanted to ask something, you have acreage in the Glacier County, Montana. We wanted to know whether you think this play extends into Canada and are you looking at any Canadian opportunities to exploit this play since you already have Canadian operations?

Toby Darden

Well, we try not to comment on any ongoing acreage acquisition or review. So we really would rather not comment at this time. It is very early and there aren’t any results yet of commercial nature to report. So just know that we are aware of the extent of the Exshaw-Bakken play in Alberta and keep our eye on that"

Quicksilver mainitsee tuossa että se on törmännyt öljypitoiseen Exshaw-Bakkeniin B.C.:n Horn Riverissä. Horn River on tähän asti ollut tunnettu vain maakaasusta.