Oil Generation: Difference between revisions

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There are two basic ways [[Oil]] generates in GT:NH; as spouts visible from the surface, and as an Underground Fluid oil field below Bedrock. Spouts and fields are placed during chunk generation.
There are two basic ways [[Oil]] generates in GT:NH; as spouts visible from the surface, and as an Underground Fluid oil field below Bedrock. Spouts and fields are placed during chunk generation. Surface oil can be collected by hand or with single-block Pumps, while underground fluids require a [[Drilling Rig]] to extract. Oil is used as a fuel and for refining into various byproducts, including [[Polyethylene Processing]].




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== Underground Fluids ==
== Underground Fluids ==
Underground Fluids require multi-block Oil/Gas/Fluid Drilling Rigs. There are currently 5 types of underground fossil fuels:
Underground Fluids require multi-block [[Oil/Gas/Fluid Drilling Rig]]s. There are currently 5 types of underground fossil fuels:
* Natural Gas
* Natural Gas
* Light Oil
* Light Oil
Line 18: Line 18:
* Heavy Oil
* Heavy Oil


Use the Seismic Prospector to locate chunks with large amounts of oil. The spawning is done in an 8x8 chunk grid with no offset.
Use the [[Seismic Prospector]] to locate chunks with large amounts of oil. The spawning is done in an 8x8 chunk grid with no offset. For example, chunks 15,15; 15,16; 16,15; 16,16 are all in different 8x8 oil spawns - a smart player can use this to their advantage when prospecting. Within the 8x8 chunks, the oil can be +- 25% the designated value reported. Any oil amount above ~200 L/t is a good place to begin drilling. The algorithm is heavily skewed to generate lower quantities of oil, but theoretically the max is ~781 L/t. Higher tier [[Drilling Rig]]s will harvest bigger areas, gathering oil from multiple chunks.

For example, chunks 15,15; 15,16; 16,15; 16,16 are all in different 8x8 oil spawns - a smart player can use this to their advantage when prospecting. Within the 8x8 chunks, the oil can be +- 25% the designated value.
{|{{STDT|c_17}}
! Image !! Description
|-
|[[File:Oil-1.jpg|200px|alt=Three by three grid labelled Oil Field 1 to 9, each square subdivided into 8 by 8 chunks. The middle square Oil Field 5, has one red chunk marked "P".|Oil field grid.]]|| Every small square is one chunk (16x16 blocks). Seismic Prospector scans 3x3 (nine total) fields of 8x8 chunks, starting with the field it's in and the eight surrounding. Every chunk in a field has the same fluid, but amounts will vary. "P" shows where the prospector was placed in the field - exact placement doesn't matter, every chunk in Oil Field 5 would work the same.
|-
|[[File:oil generation.png|200px|alt=]]||Histogram of 1250 oil area spawning values. The 8x8 chunks within would be +-25% of these values. Most chunks will be 50L or less, it's rare to find ones that are over 100L.
|}



[[File:Oil-1.jpg|thumb|822x822px|alt=|none]]


The algorithm is heavily skewed to generate lower quantities of oil, but theoretically the max is ~781 L/t.<gallery>
oil generation.png|Histogram of 1250 oil area spawning values. The 8x8 chunks within would be +-25% of these values.
</gallery>


Any oil amount above ~200 L/t is a good place to begin drilling.
Higher tier oil derricks will drill a wider area around it, gathering oil from multiple chunks.


=== Natural Gas ===
=== Natural Gas ===
Converts to Refinery Gas with H in a Chemical Reactor.
Converts to Refinery Gas with H in a Chemical Reactor.
1000L Refinery Gas distillation products (additional products available via steam and hydro cracking)
Refinery Gas distillation products result in butane, propane, ethane, methane and helium. Additional products are available via steam and hydro cracking.
* 60L Butane
* 70L Propane
* 100L Ethane
* 750L Methane
* 20L Helium


{| {{STDT|c_17 align-center}}
=== Light Oil ===
! Distilliation Results !! Butane !! Propanel !! Ethane !! Methane !! Helium
Not that great a liquid, but can be useful in large quantities for Refinery Gas
150L Light Oil
* 10L Sulfuric Heavy Fuel
* 20L Sulfuric Light Fuel
* 30L Sulfuric Naphtha
* 240L Sulfuric Gas

=== Oil ===
Your basic oil type, same as the oil spouts.
50L Oil distillation products
* 15L Sulfuric Heavy Fuel
* 50L Sulfuric Light Fuel
* 20L Sulfuric Naphtha
* 60L Sulfuric Gas

=== Medium Oil (Raw Oil) ===
Alternative to Oil, identical refinery products but 50% as efficient
100L Raw Oil distillation products
* 15L Sulfuric Heavy Fuel
* 50L Sulfuric Light Fuel
* 20L Sulfuric Naphtha
* 60L Sulfuric Gas

=== Heavy Oil ===
Perfect for getting Heavy Fuel for your Diesel mixing needs.
100L Heavy Oil distillation products
* 250L Sulfuric Heavy Fuel
* 45L Sulfuric Light Fuel
* 15L Sulfuric Naphtha
* 60L Sulfuric Gas

=== Oil Drilling Rig Tiers and Operation Range ===
Oil Drilling Rigs always work on a fixed chunk grid inside their oil field.
[[File:Oil-2.jpg|thumb|670x670px|alt=|none]]

=== Oil Drill Yields ===
Calculating how much oil a drill will yield is a little complicated. The drills run on "operations" and how many ticks equal one operation varies based on the drill machine tier, and the energy hatch tier. The amount of oil pulled from each chunk per operation depends on the tier of the energy hatch above the minimum tier as well.

One important concept is that the oil drill will always drill on range size boundaries. For a 1x1 tier 1 oil drill, that isn't important. For 2x2 or 4x4 tier 2 or 3, the drill, no matter where it is placed in the 2x2 or 4x4 grid, will always pull oil from the same group of chunks. For example, looking at X for a 4x4 drill

{| class="wikitable"
|+ Chunks and how they group for a 4x4 drill
|-
|-
! 1000L Natural Gas
|Chunk X
| 60L || 70L || 100L || 750L || 20L
|Group
|-
|-
| -5
| -2
|-
| -4
| -1
|-
| -3
| -1
|-
| -2
| -1
|-
| -1
| -1
|-
| 0
| 0
|-
| 1
| 0
|-
| 2
| 0
|-
| 3
| 0
|-
| 4
| 1
|-
| 5
| 1
|}
|}


=== Oil ===
Here are some oil values in a 4x4 chunk group.
Oil is considered an important resource since it can be used to produce a number of fuels. In addition to that many distillates are commonly used for polyethylene, TNT, rubber and much more.


* Oil is commonly used as it provides a good distribution of Light Fuel and Heavy Fuel, as well as Naphta. Oil sprouts have this type.
{| class="wikitable"
* Medium Oil (Raw Oil) is half as efficient as standard oil with the same distribution of distillates.
|+ Example oil found in chunks
* Light Oil produces a high portion of Sulfuric Gas which makes this fluid less useful in most cases. Can be useful in large quantities for Refinery Gas.
|-
* Heavy Oil distills to a lot of Sulfuric Heavy Fuel. Perfect for getting Heavy Fuel for your Diesel mixing needs.
| Amount
| Amount
| Amount
| Amount
|| Total oil in the row
|-
|423
|432
|654
|633
|| 2142
|-
|630
|499
|563
|476
|| 2168
|-
|476
|602
|560
|444
|| 2082
|-
|458
|651
|490
|525
||2124
|}


All Oils also have an additional recipe in the Distillation Tower, producing Naphthenic Acid. Check NEI for specifics.
Total oil in 4x4 grid = 8516


{| {{STDT|sortable c_17 align-center}}
To calculate the ticks per operation, use the base values below
! Distilliation Results !! Sulfuric Heavy Fuel !! Sulfuric Light Fuel !! Sulfuric Naptha !! Sulfuric Gas

{| class="wikitable"
|+ Base ticks per operation
|-
|-
! 50L Oil
| Tier
| 15L || 50L || 20L || 60L
| Base value
|-
|-
! 100L Raw Oil
| 1
| 15L || 50L || 20L || 60L
| 8
|-
|-
! 150L Light Oil
| 2
| 10L || 20L || 30L || 240L
| 32
|-
|-
! 100L Heavy Oil
| 3
| 250L || 45L || 15L || 60L
| 32
|}
|}
=== Drilling Rig ===
[[File:Oil-2.jpg|thumb|right|200px|alt=|Drilling Rig harvesting range]][[Drilling Rig]]s are used to extract fluids from below the bedrock, including Oil. They come in five tiers, four which harvest from ever increasing ranges and the Infinite Gas/Oil/Fluid Drilling Rig which doesn't deplete oil fields. Oil Drilling Rigs always work on a fixed chunk grid inside their oil field. Infinite Oil is also possible from the [[Space Elevator]].


For each tier the energy hatch is above the minimum, divide the base value by 2. For example, if you are using an HV energy hatch on an MV oil drill, your ticks per operation is 4.

Now, the amount of oil pulled out of each chunk is (the amount in the chunk) * (.5 + .25 (tiers above minimum)). So for an MV energy hatch on an MV oil drill, your oil removed is .5.
For an HV hatch on an MV drill, the oil removed is .75.

So now we can combine these together. For a tier 2 drill with HV energy hatches (the minimum)
8516 * (.5) = 4258 oil per operation.

To calculate oil per second
(4258L / operation) * (20 ticks per second) / (32 ticks per operation) = 2661 L/s

Measuring for 30s, I retrieved 80902L, or 80902L/30S = 2692L/s

Watch out for the values given by the prospector. The rounding it does is not the same as the oil pump code, so you may get +-1L per each chunk.

=== Total oil Yield per Chunk ===
The total oil or any fluid that can be extracted from a chunk can be found by the given formula

Total oil yield =1000*N^2 - 500*N*X-500*X

N=Z/X

Z=How much in Liters the pump will give before pumping starts

X=How much does the pump decrease per 1000 cycles (generally 1)
[[Category:Worldgen]]
[[Category:Worldgen]]

Latest revision as of 23:40, 9 October 2023

There are two basic ways Oil generates in GT:NH; as spouts visible from the surface, and as an Underground Fluid oil field below Bedrock. Spouts and fields are placed during chunk generation. Surface oil can be collected by hand or with single-block Pumps, while underground fluids require a Drilling Rig to extract. Oil is used as a fuel and for refining into various byproducts, including Polyethylene Processing.


Spouts

BuildCraft Oil Spout

Spouts are a great source of oil in early tiers. For a sample set-up, see this page.

  • They are very dangerous. If the player falls in, death is virtually guaranteed.
  • They can catch on fire from mobs or lightning. Put a cobble or dirt cover above any nearby oil spouts. Gravel is not recommended as it will prevent pumping later.
  • The higher the spout, the larger the amount of oil available. Large ones can have 4000+ buckets of oil
  • Spouts lead down to underground oil pools. Even after pumping there will be a large dark cavern, potentially with dangerous oil puddles left.

Underground Fluids

Underground Fluids require multi-block Oil/Gas/Fluid Drilling Rigs. There are currently 5 types of underground fossil fuels:

  • Natural Gas
  • Light Oil
  • Oil
  • Medium Oil
  • Heavy Oil

Use the Seismic Prospector to locate chunks with large amounts of oil. The spawning is done in an 8x8 chunk grid with no offset. For example, chunks 15,15; 15,16; 16,15; 16,16 are all in different 8x8 oil spawns - a smart player can use this to their advantage when prospecting. Within the 8x8 chunks, the oil can be +- 25% the designated value reported. Any oil amount above ~200 L/t is a good place to begin drilling. The algorithm is heavily skewed to generate lower quantities of oil, but theoretically the max is ~781 L/t. Higher tier Drilling Rigs will harvest bigger areas, gathering oil from multiple chunks.

Image Description
Three by three grid labelled Oil Field 1 to 9, each square subdivided into 8 by 8 chunks. The middle square Oil Field 5, has one red chunk marked "P". Every small square is one chunk (16x16 blocks). Seismic Prospector scans 3x3 (nine total) fields of 8x8 chunks, starting with the field it's in and the eight surrounding. Every chunk in a field has the same fluid, but amounts will vary. "P" shows where the prospector was placed in the field - exact placement doesn't matter, every chunk in Oil Field 5 would work the same.
Histogram of 1250 oil area spawning values. The 8x8 chunks within would be +-25% of these values. Most chunks will be 50L or less, it's rare to find ones that are over 100L.



Natural Gas

Converts to Refinery Gas with H in a Chemical Reactor. Refinery Gas distillation products result in butane, propane, ethane, methane and helium. Additional products are available via steam and hydro cracking.

Distilliation Results Butane Propanel Ethane Methane Helium
1000L Natural Gas 60L 70L 100L 750L 20L

Oil

Oil is considered an important resource since it can be used to produce a number of fuels. In addition to that many distillates are commonly used for polyethylene, TNT, rubber and much more.

  • Oil is commonly used as it provides a good distribution of Light Fuel and Heavy Fuel, as well as Naphta. Oil sprouts have this type.
  • Medium Oil (Raw Oil) is half as efficient as standard oil with the same distribution of distillates.
  • Light Oil produces a high portion of Sulfuric Gas which makes this fluid less useful in most cases. Can be useful in large quantities for Refinery Gas.
  • Heavy Oil distills to a lot of Sulfuric Heavy Fuel. Perfect for getting Heavy Fuel for your Diesel mixing needs.

All Oils also have an additional recipe in the Distillation Tower, producing Naphthenic Acid. Check NEI for specifics.

Distilliation Results Sulfuric Heavy Fuel Sulfuric Light Fuel Sulfuric Naptha Sulfuric Gas
50L Oil 15L 50L 20L 60L
100L Raw Oil 15L 50L 20L 60L
150L Light Oil 10L 20L 30L 240L
100L Heavy Oil 250L 45L 15L 60L

Drilling Rig

Drilling Rig harvesting range

Drilling Rigs are used to extract fluids from below the bedrock, including Oil. They come in five tiers, four which harvest from ever increasing ranges and the Infinite Gas/Oil/Fluid Drilling Rig which doesn't deplete oil fields. Oil Drilling Rigs always work on a fixed chunk grid inside their oil field. Infinite Oil is also possible from the Space Elevator.

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