<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Am Do., 27. Feb. 2020 um 00:23 Uhr schrieb Joseph Eisenberg <<a href="mailto:joseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Different tags are used for petroleum wells vs water wells because<br>
they look totally different</blockquote><div><br></div><div><br></div><div>do they? Have a look at this short clip that shows a water well:</div><div><a href="https://www.youtube.com/watch?v=2lkoCCCQytc">https://www.youtube.com/watch?v=2lkoCCCQytc</a></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> and their function for the general map<br>
user is quite distinct. </blockquote><div><br></div><div><br></div><div>indeed</div><div><br></div><div> </div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
An oil or gas well has a fire-hydrant like structure on top called a<br>
"Christmas tree" or a pumping rig like a "pump jack" - you will not<br>
mistake them for a water well.<br></blockquote><div><br></div><div><br></div><div>You will use a pump jack for the extraction of liquids, so I would say their presence will exclude a gas-only well.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
According to these sources, the term "petroleum" can include both<br>
natural gas and crude oil:<br>
<br>
<a href="http://energy4me.org/all-about-energy/what-is-energy/energy-sources/petroleum/" rel="noreferrer" target="_blank">http://energy4me.org/all-about-energy/what-is-energy/energy-sources/petroleum/</a><br>
<br>
"Oil and natural gas together make petroleum. Petroleum, which is<br>
Latin for rock oil, is a fossil fuel, meaning it was made naturally<br>
from decaying prehistoric plant and animal remains. It is a mixture of<br>
hundreds of different hydrocarbons molecules containing hydrogen and<br>
carbon that exist sometimes as a liquid (crude oil) and sometimes as a<br>
vapor (natural gas)."<br>
<br>
<a href="https://www.appea.com.au/oil-gas-explained/oil-and-gas/what-is-petroleum/" rel="noreferrer" target="_blank">https://www.appea.com.au/oil-gas-explained/oil-and-gas/what-is-petroleum/</a><br>
<br>
"Petroleum is a general term for oil and natural gas."<br>
<br>
So a man_made=petroleum_well is a natural gas or crude oil well, but<br>
many (most?) petroleum wells produce both oil and gas.<br></blockquote><div><br></div><div><br></div><div>this is fine, so we already have it structured nicely ;)</div><div>For oil wells, gas will usually also be extracted (but not always used), but for gas only wells we could have a subtag to man_made=petroleum_well</div></div><div>Is there something in use? Otherwise we would be loosing information compared to man_made=gas_well.</div><div><br></div><div>Cheers<br></div><div>Martin<br></div><div><br></div><div><br></div></div>