# how much property do you own? v. natural gas production

**URL:** https://forums.speedlife.net/t/how-much-property-do-you-own-v-natural-gas-production/194992
**Category:** PittSpeed Off Topic
**Created:** [January 23, 2008, 8:04am UTC](https://forums.speedlife.net/t/how-much-property-do-you-own-v-natural-gas-production/194992 "2008-01-23T08:04:58Z")
**Posts on this page:** 1
**Showing post:** 29

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### Author: ![kilmer420](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@kilmer420](https://forums.speedlife.net/u/kilmer420)
#### Post date: [January 23, 2008, 10:18am UTC](https://forums.speedlife.net/t/how-much-property-do-you-own-v-natural-gas-production/194992/29 "2008-01-23T10:18:21Z")

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> [@The most adorable thing you'll see all day](https://forums.speedlife.net/t/the-most-adorable-thing-youll-see-all-day/34529/2):
>
> natural gas wells don’t have anything to do with subsidence. idiot. and if you own more than an acre, we can probably drill on it. We’ve been drilling in downtown west kittanning between businesses. you should really just stop posting in my threads.

I am not like your nutswinger beat91tsi or whatever his name is…If you haven’t been in your ‘field’ long enough to read up about it, feel free:

> **[Subsidence](https://en.wikipedia.org/wiki/Subsidence)**
>
> Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope movement.
> Processes that lead to subsidence include dissolution of underlying carbonate rock by groundwater; gradual compaction of sediments; withdrawal of fluid lava from beneath a solidified crust of rock; mining; pumping of subsurface fluids, such as ground...

Extraction of natural gas

If natural gas is extracted from a natural gas field the initial pressure (up to 600 bar) in the field will drop over the years. The gas pressure also supports the soil layers above the field. If the pressure drops, the soil pressure increases and this leads to subsidence at the ground level. Since exploration of the Slochteren (Netherlands) gas field started in the late 1960s the ground level over a 250 km² area has dropped with a current maximum of 30 cm [3]. See also this subsidence lecture.

This type of subsidence can similarly be caused by extraction of other resources, e.g. ground water, petroleum or rock salt.

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