What is the difference between On-shore and Off-shore Oil Drilling?
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on shore.. on the land, off shore on the water.\nbut then off sore as inshore and offshore.\ninshore is generally described as within a few miles of the coastline of the country.\nOffshore is described as deep water.. \n\nSo.. just remember off shore you need waders to drill for oil.
27821
Natural resources\n\nThere is a substantial amount of petroleum and natural gas under the seabed: see North Sea oil.
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The National Assessment of United States Oil and Gas Resources prepared by the U.S. Geological Survey (USGS) provides estimates of quantities of technically recoverable oil and natural gas that could be added to our already proved reserves in the onshore and State offshore areas of the United States.\n\nit is table format so you should go to this link to look \n\nhttp://pubs.usgs.gov/fs/fs024-98/table1.htm
376177
I agree it sounds like a con.  I do know that most oil well drilling projects lose money.  Oil drilling companies make money because the few projects that make money, more than make up for the ones that lose money.  Unless you are an expert in oil drilling, do not invest in oil wells.  They are probably selling a well no oil company is dumb enough to invest in.
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Propane is cleaner, Oil is cheaper but not in the long run\npropane is easier to store. burns hotter so it heats faster.\ngo with Propane
406328
Okay listen carefully,\n\nOil is not found in caves for Heaven's sake! Oil is found inside porous permeable rocks. That means that tiny holes are interconnected together like a network of capillaries. When you pump out the oil there is no real big void left to cave in. Besides water is sometimes found w/ the oil. Since oil is less dense it rides over the top of the water. So if anything fills the spaces left behind it will be water!\n\nNow the ground will cave in where they pump massive amounts of groundwater out of aquifers found in limestone bedrock.\n\nLimestone dissolves due to natural acids such as carbonic acid. Voids or caverns or caves, whichever you prefer to call them are created & fill w/ water. When the water is pumped out, there is nothing left to support the structures above. The ground caves in & poof you have a sinkhole.\n\nSinkholes have been known to swallow whole blocks in cities. Florida is entirely underlain w/ limestone bedrock. The whole state has sinkholes everywhere.\n\nSo don't be concerned about pumping oil out & leaving gaping holes behind. Those you don't have to worry about. You do have to worry about pumping too much groundwater.\n\nTurn off the water while you are brushing your teeth next time.
188081
obviously you are referring to ocean weather conditions.  from surfing i know that off shore winds mean the wind is blowing towards the ocean (pacific side would be west) and onshore means the wind is blowing off the ocean towards the beach (pacific side would be east)  off shore makes for the best surf, incaser you were wondering.
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I'm a Petroleum Engineer, graduated from the University of Tulsa in 1979, and my principle job was Production Engineering, which is probably similar to a Production Operator, or maybe the same thing.\n\nFirst, it will probably require a four-year degree in Petroleum Engineering. You must find this out first, otherwise, "the things you must know" are unimportant.\n\nWhere the Geologist is responsible for "where" a well is drilled, the Engineer usually determines if the well will produce from complex wireline logs that are ran when the drilling rig reaches Total Depth. \n\nThe Production Engineer takes control of an oil or gas well immediately after it has been drilled, before the drilling rig is dismantled and moved off the pad. He determines and  designs the size and thickness of the casing and wellhead, according to the depth, pressure, and production capabilities of the well, then determines the amount of cement needed to cement the casing in place.\n\nThen the completion of the well begins, and a workover rig is moved over the hole. In short, another wireline truck is moved over the hole, and holes are shot in the casing into the producing sand. The formation is then acidized and fractured hydraulically. If it produces, a production string of tubing is run in the hole.\n\nIf the well won't flow, then a pumping unit must be sized for the depth, production, etc.\n\nA tank battery is set up on location, including a separator, heater treater, and several tanks, depending on the amount of the production.\n\nLater in the life of the well, an engineer will be responsible for re-completing the well to another formation, or plugging and abandoning the well according to State regulations.\n\nA Production Operator is resposible for the production from several hundred wells, and when one stops producing, he must figure out why and get it bakc on line with the least of expense.
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you can found some information here :\nhttp://www.glossary.oilfield.slb.com/\nhttp://www.applyoilandgasjob.com/technical/Technical-oil.htm\ni hope it can help you
130861
The arctic wildlife preserve is over 19.2 million acres. It is basiacally a roadless, uninhabited region. A 1.5 million acre tract has been studied by the U.S geologic survey for it's potential of oil production, not the entire refuge. This area near the coastal plain contains oil deposits which would help cut our dependency on foreign imports while adding jobs to the area and opening more of this almost inaccesable land to all who would visit.  The actual drilling platform and it's associated pipeline can be built and run with very little effect on wildlife habitat.
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All rigs nowadays use rotary drilling technology.  As the hole is drilled, drilling mud is pumped through the drill pipe, out through the bit and up the hole to the surface.  This is to stop the hole from collapsing as it gets deeper.\n\nOn land, rigs really only vary in size, sophistication in pipe handling technology, and horse power.  \n\nThe marine environment is a bit more varied.  The drilling equipment can be mounted a swamp barge for shallow water (as used in the Niger Delta for example).  \n\nNext in scale would be a jack-up rig.  These can be extremely large (Maersk rigs are some of the largest in the world) but are limited by water depth owing to the length of the jack-up legs.  These rigs are towed into position, then the legs are lowered into the sea bed.\n\nDeeper water requires the use of a semi-submersible rig (semi-sub for short).  These rigs are sailed into position, and then partially submerge in order to gain great stability.  They also require the use of anchors.\n\nIn the deepest water, drill ships are used.  They cannot anchor because of the water depth.  They stay in position by the use of GPS in combination with powerful thrusters.  The ship has to be able to rotate around the drill string in order to face into the weather.\n\nAll of these rig types are not the same as production platforms.  Although these have drilling capability, they also produce oil and/or gas.  Mobile drilling rigs just drill and test the boreholes: they do not produce hydrocarbons.   \n\nA short summary.  Try websites such as Transocean or Glomar drilling companies for some pictures and more detailed explanation.
142065
There are two different systems i know of.\n\n1.) A drilled pier is when an auger is used to drill a hole in the ground to get to good bearing soil/rock.  Then a steel cage is dropped into the hole and concrete is poured around it then a building is poured on top of it with the piers serving as bases for columns and heavy loads.  This is a system that is liked in siesmic regions because it allows good contact with bedrock that is less prone to shifting than granular soils, and on large structures it is required because the granular soils will not have enough bearing strength to support the building.\n\n2.)  There is another type of pier that is drilled into place but does not require concrete poured in the hole.  Basically it's a steel tube with an auger type bit on the front and a plate on the back.  A skid-steer with a special attachment hooks up to the pier and turns it until the right amount of resistance is encountered and the pier is capped with a plate that has the foundation footings poured around it.
122635
Crude oil is unrefined oil right out of the ground (liquid gold!) and Bunker oil is a very thick tar-like oil residue that remains after refining that removes lighter volatile fractions.  Bunker C is heated with steam onboard large ships so that it can liquify and flow to a special fuel nozzle that spray it into a furnace to combust and heat a water-filled tube bundle connected to the ship's boilers where steam is separated out and used to drive the ship's steam turbines and therefore the ship's propeller, etc.
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Ehh.. oil is pumped from just below the surface. The Core is made of Molten Lava, which isn't too useful a fuel source yet ;)\n\nNow, as for the caverns where we find oil, which is what I think that you're thinking of, those just empty gradually over time. Oil deposits aren't usually so large that draining the oil causes destability. It's the same thing as underground aquifers, which are a lot easier to find information on IMO.
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http://www.altavista.com/web/results?itag=ody&q=advantages+of+opening+an+off-shore+bank+account&kgs=0&kls=1
276556
Another good clue is whether or not you are near a salt dome (i.e. cental and south Louisiana).  Oil is almost always found in the vicinity of these domes.
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On shore winds means the wind is blowing from the ocean towards the land, coming at you if you are facing the ocean. Off shore means the wind is blowing towards the ocean. Light off shore is best for surfing because it helps smooth the ocean surface. No wind is actually best for creating glassy conditions. Off shore winds also help with the shape of the wave. As the wave crests, off shore winds help hold the peak up a moment longer giving up a steeper face.