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Episode 2: OIL AND GAS EXPLORATIONAL SURVEY Exploration surveying In the first stage of the search for hydrocarbon-bearing rock formations, geological maps are reviewed in desk studies to identify major sedimentary basins. Aerial photography maythen be used to identify promising landscape formations such as faults or anticlines. More detailed information is assembled using a field geological assessment, followed by one of three main survey methods: Magnetic gravimetric and seismic survey. The Magnetic Method depends upon measuring the variations in intensity of the magnetic field which reflects the magnetic character of the various rocks present, while the Gravimetric Method involves the measurements of small variations in the gravitational field at the surface of the earth. Measurements are made, on land and at sea, using an aircraft or a survey ship respectively. A seismic survey, is the most common assessment method and is often the first field activity undertaken. The Seismic Method is used for identifying geological structures and relies on the differing reflective properties of soundwaves to various rock strata, beneath terrestrial or oceanic surfaces. An energy source transmits a pulse of acoustic energy into the ground which travels as a wave into the earth. At each point where different geological strata exist, a part of the energy is transmitted down to deeper layers within the earth, while the remainder is reflected back to the surface. Here it is picked up by a series of sensitive receivers called geophones or seismometers on land, or hydrophones submerged in water. Special cables transmit the electrical signals received to a mobile laboratory, where they are amplified and filtered and then digitized and recorded on magnetic tapes for interpretation. Dynamite was once widely used as the energy source, but environmental considerations now generally favour lowerenergy sources such as vibroseis on land (composed of a generator that hydraulically transmits vibrations into the earth) and the air gun (which releases compressed air) in offshore exploration. In areas where preservation of vegetation cover is important, the shot hole (dynamite) method is preferable to vibroseis. |
Ok shegssosplendid: |
episode 2: OIL AND GAS EXPLORATIONAL SURVEY Exploration surveying In the first stage of the search for hydrocarbon-bearing rock formations, geological maps are reviewed in desk studies to identify major sedimentary basins. Aerial photography maythen be used to identify promising landscape formations such as faults or anticlines. More detailed information is assembled using a field geological assessment, followed by one of three main survey methods: Magnetic gravimetric and seismic survey. The Magnetic Method depends upon measuring the variations in intensity of the magnetic field which reflects the magnetic character of the various rocks present, while the Gravimetric Method involves the measurements of small variations in the gravitational field at the surface of the earth. Measurements are made, on land and at sea, using an aircraft or a survey ship respectively. A seismic survey, is the most common assessment method and is often the first field activity undertaken. The Seismic Method is used for identifying geological structures and relies on the differing reflective properties of soundwaves to various rock strata, beneath terrestrial or oceanic surfaces. An energy source transmits a pulse of acoustic energy into the ground which travels as a wave into the earth. At each point where different geological strata exist, a part of the energy is transmitted down to deeper layers within the earth, while the remainder is reflected back to the surface. Here it is picked up by a series of sensitive receivers called geophones or seismometers on land, or hydrophones submerged in water. Special cables transmit the electrical signals received to a mobile laboratory, where they are amplified and filtered and then digitized and recorded on magnetic tapes for interpretation. Dynamite was once widely used as the energy source, but environmental considerations now generally favour lowerenergy sources such as vibroseis on land (composed of a generator that hydraulically transmits vibrations into the earth) and the air gun (which releases compressed air) in offshore exploration. In areas where preservation of vegetation cover is important, the shot hole (dynamite) method is preferable to vibroseis. odiphri: |
My brother sorry for my late reply, as a industrial chemist, you fit in every area of the Oil and Gas sector from the upstream to the downstream, when i said upstream that is from exploration to production. and downstream i mean processing even to marketing, because as an industrial chemist is the application of physical and chemical processes towards the transformation of raw material into product, so my brother you are very fit for the oil and gas sector, if you are still in school please i advice You, please try to have minimum of 2.1. shegssosplendid: |
episode 2 odiphri: |
biafraisdead:The oil and gas industry comprises two parts: ‘upstream and the downstream The upstream deals with exploration and production sector of the industry; ‘Downstream, which deals with refining and processing of crude oil and gas products, their distribution and marketing. Companies operating in the industry may be regarded as fully integrated, So when talking about starting oil and gas exploration business with #300,000 is not possible, because in exploration there are so many factor you have to put in place, • Identifies area with favourable geological condition • Seismic survey • Exploratory drilling • Determine if the reservoir is economical, and so many other factors, Please send me a mail; your #300,000 can still be useful to depends on you. If you are ready for mini business |
Hello, My name is Engr Emmanuel, I want to used this medium to talk about the oil and Gas sector, I have been in this sector for over 6years now , I realized that there are no adequate information online about this sector, for that I have to create the thread. And I will also appreciate the contribution of other experts in the field, as time permits, I will be dropping valuable information, this tread is for students, investors those who wants to start oil and gas business, and also for those who want to switch careers and for research purposes. |
How many battle are will going to fight, the economy is dying, don't let militant start. Probe buhari. Using all our money for stupid traveling
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Red card for Apc |
Snake is a very good meat, secondly medicinal |
Let the worst happen. |
And so what. Whether they arrest na you know |
No breast. |
Watching |
Na you sabi |
David mark............... Y humiliating yourself. Is right time you quit politics. Go and enjoy your stolen billions......... Apc....... I just DE watch.......... Na only pdp den they nullify.......... |
Honestly. I don't understand what buhari is doing
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Rubbish. Power is nothing |
OK. Change
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Mama natural. OK let go |
Na dem Sabi. |
Na waoo. Anyway take heart. |
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