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| style="padding:2px;" | <h2 id="mp-tfa-h2" style="margin:3px; background:#0068b3; font-family:inherit; font-size:120%; font-weight:bold; border:1px solid #0068b3; text-align:left; color:#FFF; padding:0.2em 0.4em;">This week's featured topic page<span style="font-size:85%; font-weight:normal;"></span></h2>
 
| style="padding:2px;" | <h2 id="mp-tfa-h2" style="margin:3px; background:#0068b3; font-family:inherit; font-size:120%; font-weight:bold; border:1px solid #0068b3; text-align:left; color:#FFF; padding:0.2em 0.4em;">This week's featured topic page<span style="font-size:85%; font-weight:normal;"></span></h2>
 
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| style="color:#000;" | <div id="mp-tfa" style="padding:2px 5px">'''[[Propping agents and fracture conductivity]]'''
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| style="color:#000;" | <div id="mp-tfa" style="padding:2px 5px">'''[[Gas viscosity]]'''
  
Propping agents are required to "prop open" the [[Hydraulic fracturing|fracture]] once the pumps are shut down and the fracture begins to close. The ideal propping agent is strong, resistant to crushing, resistant to corrosion, has a low density, and is readily available at low cost. The products that best meet these desired traits are silica sand, resin-coated sand (RCS), and ceramic proppants.
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Just as the compressibility of natural gas is much greater than that of oil, water, or rock, the viscosity of natural gas is usually several orders of magnitude smaller than oil or water. This makes gas much more mobile in the reservoir than either oil or water.
[http://petrowiki.org/Propping_agents_and_fracture_conductivity Read more....]
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[http://petrowiki.org/Gas_viscosity Read more....]
 
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'''[[PetroWiki news]]'''
 
'''[[PetroWiki news]]'''
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[http://www.spe.org/news/article/southwestern-energy-approaches-goal-of-freshwater-neutrality '''Southwestern Energy Approaches Goal of Freshwater Neutrality'''] by Stephen Whitfield
  
 
[http://powersource.post-gazette.com/powersource/companies-powersource/2015/01/27/Drones-may-change-search-for-oil-and-gas-field-hazards/stories/201501200012 '''Drones may change search process for gas field hazards'''] by Laura Legere
 
[http://powersource.post-gazette.com/powersource/companies-powersource/2015/01/27/Drones-may-change-search-for-oil-and-gas-field-hazards/stories/201501200012 '''Drones may change search process for gas field hazards'''] by Laura Legere
  
 
[http://www.cleveland.com/business/index.ssf/2015/01/oil_and_gas_industry_creating.html '''Oil and gas industry creating new age of abundance, says American Petroleum Institute'''] by John Funk
 
[http://www.cleveland.com/business/index.ssf/2015/01/oil_and_gas_industry_creating.html '''Oil and gas industry creating new age of abundance, says American Petroleum Institute'''] by John Funk
 
[http://www.spe.org/jpt/article/7788-technology-update-1-7/ '''Nanochemistry Drives New Method for Removal and Control of Wax'''] by Dauren Tukenov
 
  
 
[http://www.spe.org/news/category/feature '''More SPE featured news...''']
 
[http://www.spe.org/news/category/feature '''More SPE featured news...''']
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<center>'''Featured New Page'''</center>
 
<center>'''Featured New Page'''</center>
<center>'''[[Gas chromatography]]'''</center>
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<center>'''[[Producing crude oil from algae]]'''</center>
 
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Gas chromatography (GC), is commonly used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, or separating the different components of a mixture (the relative amounts of such components can also be determined).
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Biofuels are an alternative to fossil fuels that are produced from fats derived from living organisms. One source of biofuel that is being explored more thoroughly in recent years is microalgae. The bio substance can be turned into crude oil, which can then be used to create biodiesel, biobutanol, biogasoline, methane, ethanol, or jet fuel.
  
In gas chromatography, the mobile phase (or "moving phase") is a carrier gas, usually an inert gas like helium or an unreactive gas like nitrogen. The stationary phase is a microscopic layer of liquid or polymer on an inert solid support, inside a piece of glass or metal tubing called a column. The instrument used to perform gas chromatography is called a gas chromatograph (or "aerograph", "gas separator").
 
 
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Revision as of 15:37, 4 February 2015


This week's featured topic page

Gas viscosity

Just as the compressibility of natural gas is much greater than that of oil, water, or rock, the viscosity of natural gas is usually several orders of magnitude smaller than oil or water. This makes gas much more mobile in the reservoir than either oil or water. Read more....

In the news this week

New topic pages

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. Read more about becoming a champion for PetroWiki…

Featured New Page
Producing crude oil from algae


Biofuels are an alternative to fossil fuels that are produced from fats derived from living organisms. One source of biofuel that is being explored more thoroughly in recent years is microalgae. The bio substance can be turned into crude oil, which can then be used to create biodiesel, biobutanol, biogasoline, methane, ethanol, or jet fuel.

What is PetroWiki?

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.

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