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Useful Production Geology Links 
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Joined: Tue Jun 08, 2010 3:44 pm
Posts: 49
Post Useful Production Geology Links
A list of very useful Production Geology links. Please reply and suggest additions.

Online resources:

Papers, definitions and Simulation articles by Petrobjects inc.
Technical presentation library by Fekete Reservoir Engineering Software & Services
Free Spreadsheets on Petroleum Engineering

Books:

Oil Field Production Geology by Mike Shepherd

Services:

Geomodelling Services offers expert subsurface modelers

General Petroleum Geology Resources:

Petroleum Geology resources by the AAPG

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E&P Geology Messageboard Administrator


Mon Feb 14, 2011 11:04 pm
WWW

Joined: Fri Feb 18, 2011 3:17 pm
Posts: 5
Post Re: Useful Production Geology Links
I've written a book for the AAPG on Oil Field Production Geology. I have a website that goes with the book on http://www.productiongeology.com , mainly commenting on new ideas that aren't in the book.

The book and the website focuses on the more pragmatic aspects of the subject. I wrote the book with the idea that a new start in an oil company, given a field to look after, could get an idea of what to do with it. I've tried to write it in a simple, lucid fashion and I concentrate on explaining the basics without any fuss. Hopefully, geologists and other disciplines will find it useful.


Fri Feb 18, 2011 3:26 pm
Site Admin

Joined: Tue Jun 08, 2010 3:44 pm
Posts: 49
Post Re: Useful Production Geology Links
Mike,

Thanks for joining the forums. I imagine your insights and ideas will be more than welcome here!
I also added the link to your website!

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Fri Feb 18, 2011 5:17 pm
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Joined: Wed Aug 18, 2010 10:15 pm
Posts: 36
Post Re: Useful Production Geology Links
Mike,

can you give us any indication of when your new version of OIL FIELD PRODUCTION GEOLOGY can be expected?


Thu Mar 10, 2011 1:36 am

Joined: Fri Feb 18, 2011 3:17 pm
Posts: 5
Post Re: Useful Production Geology Links
I'm not intending to update the book at the moment. I'm involved in a campaign to stop the development of a public park in the centre of Aberdeen, Scotland and this is taking up all my spare time! If anyone thinks the book should be updated any suggestions on how to improve it will be welcome.


Wed Mar 16, 2011 4:02 pm

Joined: Wed Sep 01, 2010 10:06 pm
Posts: 107
Post Re: Useful Production Geology Links
Mike,

I don't have your book, but I had a look at your website and was particularly interested in the "missing work flow" in 3D static modeling. I work with Petrel a lot and acknowledge the problem. Re-assessing a static model after production data slowly starts pointing towards discrepancies with the forward model is too often neglected.

What do you propose in terms of this. I would love to read your views!

... and is this tackled in the 2009 version or are these ideas that still need publishing, seeing they are under "Ideas from 2009/10".


Sat Mar 19, 2011 11:59 pm

Joined: Fri Feb 18, 2011 3:17 pm
Posts: 5
Post Re: Useful Production Geology Links
Petrel user,

Thanks for your interest. Yes there are several chapters in the book on understanding a mature field in terms of how the geology influences flow paths. Once you understand this then there is a better chance of locating the remaining oil pockets. These methods are commonly used for example, by the Texas-based Bureau of Economic Geology, Shell, Statoil and in China. If you find the recent paper Gill and Shepherd on the Nelson field, this provides a case history where the methods have been applied.

In terms of reservoir modelling, I mention in the book that it is possible to produce a reasonable geological model for a reservoir (e.g. in Petrel) but it still doesn't reflect how the field works. You can come up with a plausible geological model, get the facies proportions, geometric shapes, facies relationships and properties OK, yet hidden and quirky local features can often dominate the flow patterns in a reservoir; often features that are not obvious until you start integrating the production data.

In the book I suggest that a module for data integration should be provided for 3D geological modelling packages. I reckon this could cause a step change in improved field recovery world-wide. However, I've failed to interest the two companies I've contacted on the issue. There is still a blind spot amongst many reservoir geologists that integrating production data is the reservoir engineers job.


Tue Mar 22, 2011 5:52 pm

Joined: Wed Sep 01, 2010 10:06 pm
Posts: 107
Post Re: Useful Production Geology Links
Mike,

thanks for getting back to me on this and providing this explanation. I agree that feedback mechanisms between reservoir engineers and geologists should be in place.
You state:
Quote:
There is still a blind spot amongst many reservoir geologists that integrating production data is the reservoir engineers job.


...but don't you also believe reservoir engineers often take the static models they receive as being the 'geological truth'? Many times these models are dependent on interpretation and imaging/data quality. Subseismic faults are just a small example. Shouldn't reservoir engineers be leading in this process, by going back to the static modelers as soon as the first production results come in to discuss which wells perform strangely. They can then both look at the ways a different geological interpretation could solve the problem when dynamic modeling occurs...

I guess this is similar to what you are saying, but this lays responsibility by the team that determines the problem.


Wed Mar 23, 2011 3:47 pm

Joined: Fri Feb 18, 2011 3:17 pm
Posts: 5
Post Re: Useful Production Geology Links
Yes that's in the book too! Simple reservoir engineering analysis can provide a feedback loop to the geologist to help them understand what's talking to what. BP take this to the next level of sophistication with their top-down reservoir modelling workflow.

However, there are lots of simple tricks in the toolbag to help the geologist understand how the plumbing works. I explain the ones I know about. I actually reckon that trying to figure out how a reservoir works in this way is the most satisfying job a geologist can do. It's detective work. Unfortunately not every production geologist knows how to do this.


Wed Mar 23, 2011 4:14 pm

Joined: Wed Sep 01, 2010 10:06 pm
Posts: 107
Post Re: Useful Production Geology Links
Mike,

thanks for your response. I'll be sure to enter your book in our quarterly literature requests as it doesn't seem to be in the library. Are you yourself a petrel user? and... are you still in the business?


Mon Mar 28, 2011 7:39 pm
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