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PetroWiki was created from the seven volume&nbsp;[http://store.spe.org/Petroleum-Engineering-Handbook-Volumes-I-VII-Print-Set-P126.aspx Petroleum Engineering Handbook (PEH)]&nbsp;published by the&nbsp;[http://www.spe.org/ Society of Petroleum Engineers (SPE)]. PetroWiki preserves the PEH content in unaltered form (page names that start with PEH:), while allowing SPE's membership to update and expand content from the published version. Pages that do not have PEH: at the beginning may have started with content from the PEH, but have been modified over time by contributors to the wiki. [http://petrowiki.org/PetroWiki:Disclaimer Disclaimer]
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| style="color:#000;" | <div id="mp-tfa" style="padding:2px 5px">'''[[Estimating horizontal well productivity]]'''
 
There are two fundamental problems that make accurately estimating the productivity of a horizontal well more difficult than estimating the productivity of a vertical well. The theoretical models available have a number of simplifying assumptions and the data required for even these simplified models are not likely to be available. Still, we must make estimates and decisions based on those estimates. In this page, two productivity models that have proved useful in practice are discussed.
[http://petrowiki.org/Estimating_horizontal_well_productivity Learn more....]
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[http://www.spe.org/jpt/article/8415-8415/ '''Guest Editorial: The Six Minds of a Whole New Engineer'''] by David E. Goldberg, President, Big Beacon
Unlike some other online wikis, PetroWiki content is&nbsp;[http://petrowiki.org/PetroWiki:Copyright copyright]&nbsp;SPE. For information about using content from PetroWiki, see&nbsp;[http://petrowiki.org/PetroWiki:Permissions PetroWiki:Permissions].
 
[http://www.texomashomepage.com/story/d/story/students-take-advantage-of-downturn-in-oil-gas-ind/24766/O55YEsb01EmJA3WcS3wTqQ '''Students Take Advantage of Downturn in Oil & Gas Industry'''] by David Gonzalez
 
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New pages are continually added to PetroWiki. These new pages always need subject experts to help develop these pages into high quality resources. With so many different roles within PetroWiki that have to do with contributing there is undoubtedly a place that will fit perfectly with your expertise and time. [http://petrowiki.org/Contribute_what_you_know_is_right Read more about becoming a champion for PetroWiki…]
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<center>'''[[Microbial exploration technology]]'''</center>
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Microbial Exploration Technology (MET), also called microbial enhanced oil recovery (MEOR), is a method of enhanced oil recovery (EOR) that identifies microorganism levels in soil near reservoir surfaces to estimate hydrocarbon levels. This method is largely based on the premise that the more microorganisms present, the more hydrocarbons are present for those microorganisms to feed on.


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PetroWiki was created from the seven volume ''[http://store.spe.org/Petroleum-Engineering-Handbook-Volumes-I-VII-Print-Set-P126.aspx Petroleum Engineering Handbook]'' (''PEH'') published by the [http://www.spe.org Society of Petroleum Engineers] (SPE). PetroWiki preserves the ''PEH'' content in unaltered form (page names that start with PEH:), while allowing SPE's membership to update and expand content from the published version. Pages that do not have PEH: at the beginning may have started with content from the PEH, but have been modified over time by contributors to the wiki.


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PetroWiki is a living document and therefore the content should be enhanced to include newer technologies and current information. 


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Latest revision as of 17:35, 19 February 2024


Welcome to PetroWiki
Wiki, powered by SPE membership with all things related to the petroleum industry.
3,635 pages in English

Featured article

Vol3 Page 453 Image 0002.png

Gas turbine meter

Gas turbine meters are velocity meters, and the upper velocity limit is essentially unchanged by pressure.

There are two main standards for turbine meters: ISO Standard 9951, Measurement of Gas Flow in Closed Conduits: Turbine Meters and OIML R32, Rotary Piston Gas and Turbine Gas Meters.

A basic turbine meter consists of:

  • A pressure-containing meter housing with end flanges
  • A set of internals, incorporating the turbine wheel and gearing mechanisms
  • A means of counting the turbine wheel revolutions
The operation of a turbine meter is based on the measurement of the velocity of gas. The flowing gas is accelerated and conditioned by the meter’s straightening section. The integrated straightening vanes prepare the gas flow profile by removing undesirable swirl and asymmetry before the gas flows over the freely rotating turbine wheel. The dynamic forces of the flowing gas cause the rotor to rotate. The turbine wheel is mounted on the main shaft, with high-precision, low-friction ball bearings. The turbine wheel has helical blades that have a known angle relative to the gas flow. The gas flow drives the turbine wheel at an angular velocity, which, in the linear range of a well-designed meter, is proportional with the gas velocity. Using a gearing mechanism, the rotating turbine wheel drives the mechanical counter. In addition, the rotating blade can also be used to generate pulses via a proximity sensor. Each pulse detected is equivalent to a discrete volume of gas at actual conditions (i.e., the total number of pulses collected in any period of time represents the gross observed volume during that period). For each meter, a calibration characteristic (K factor) is required. This factor is expressed in pulses per volume and is given by the manufacturer.

What is PetroWiki?

PEH all.png

PetroWiki was created from the seven volume Petroleum Engineering Handbook (PEH) published by the Society of Petroleum Engineers (SPE). PetroWiki preserves the PEH content in unaltered form (page names that start with PEH:), while allowing SPE's membership to update and expand content from the published version. Pages that do not have PEH: at the beginning may have started with content from the PEH, but have been modified over time by contributors to the wiki. Disclaimer

Start your first page here!

Start creating your first article by logging in and using the search box to look for the topic of your choice. We recommend using the title of a page you would like to create in the search box. If the search does not return any relevant pages, you will be asked to start a new page. You can click on the red link and it will open a new page with you title to begin. Add your content and remember to save!

Unlike some other online wikis, PetroWiki content is copyright SPE. For information about using content from PetroWiki, see PetroWiki:Permissions.

Helpful links

Edit toolbar

How to add inline references and auto numbered reference section

How to create a quality topic page


How can I contribute to PetroWiki?

PetroWiki is a living document and therefore the content should be enhanced to include newer technologies and current information.

Share your knowledge with others and help update PetroWiki at the same time! You can't "break" the wiki.

Follow these basic steps to get started:

  • Log in
  • Search for the topic of your choice
  • Open the topic page, if there is not a relevant topic page you will be asked if you want to start a new page
  • Make changes and/or add content
  • Save

Suggested additions:

  • New and emerging concepts
  • Utilize your expertise to review, update, and enhance the quality of existing content
  • Adding links to good papers in OnePetro and elsewhere is a great way to enrich existing content pages.
  • Creation of pages about specific fields are welcome. Knowing the basics of the reservoir and how the field was developed over time can provide valuable information to others. (See Prudhoe_Bay_field and Kuparuk River field

Things to know:


Top Contributors to PetroWiki

All time (Top 10)
RankScorePagesChangesUsername
1 80 57 185 Bob Rundle (Robertrundle) (talk | contribs)
2 76 57 151 Alexey Borisenko (Alexeyborisenko) (talk | contribs)
3 61 43 125 Maritza Vargas (Maritzavargas) (talk | contribs)
4 42 34 51 Ahmed Aql (Ahmedaql) (talk | contribs)
5 42 24 107 Jay Patel (Jaypatel1) (talk | contribs)
6 40 15 171 David Gratvol (Davidgratvol) (talk | contribs)
7 40 12 206 Omar El-khatib (Omarelkhatib) (talk | contribs)
8 40 23 92 Luiz Dalla (Luizdalla1) (talk | contribs)
9 35 24 53 Alexander Romanov (Alexanderromanov) (talk | contribs)
10 33 13 113 Claude Baudoin (Claudebaudoin) (talk | contribs)
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