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Oil Exploration

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by

Mohamed Shahin

on 23 October 2012

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Transcript of Oil Exploration

Introduction To Petroleum Engineering The Art and Science of Exploring for Oil and Gas Traps, Trap Types,
and the Petroleum System Traps are the product of the interaction of many geologic elements and processes.
The outcome of all the possible combinations of geologic elements makes each trap unique Fold Trap Fault Trap Salt domeTrap Exploring onshore Geologist Geophysicist Exploration Team Studies the Earth-its history, structure, composition, life forms and the processes that continue to change it. Studies the physics of the Earth, especially its electrical, gravitational and magnetic fields and propagation of elastic (seismic) waves within it. Geologist Geophysicist 1- Surface Inspection 2- Satellite Images -Geologist looks for clues like outcrops, which are parts
of rock beds appearing at the surface.
Geologist studies an outcrop, by mapping the locations,
thickness and angels
From this and other information, geologist try to map
the sites and shapes of rock beds beneath the surface,
and locate oil and gas reservoirs. 1-Magnetic 2-Gravity 3- Seismic involves magnetic profiling since the sedimentary rocks are non magnetic. The Igneous and Metamorphic rocks are magnetic The oil bearing rocks are generally Sedimentary rocks.
They exert less gravitational force than the surrounding rocks. The profiling of gravitational field can be done to determine the oil formation. Seismic surveys are conducted both on land and sea.
Land surveys require crews to deploy geophones necessary to
record the data.
The seismic source is either dynamite, or vibrations created by
vibroseis trucks.
For sea seismic survey, air gun is used as a source and geophones a
Are called hydrophones Drilling Colonel Drake's Rig Note that Some Important Definitions A wild cat well Drilling the well Is it possible to determine if petroleum is present in a geologic structure using only seismic data ?!! How do we get those pieces of crushed rocks
(cuttings ) up out of that hole, which may be thousands of meters deep???? How do we keep the high pressured liquids and gases that present in the rock formation from blowing out ???? Spindletop well blowout,
Texas, 1901 How could we accomplish this ??!
What are the basic techniques for oil well drilling ?? Drilling Bit Drilling Mud Rig Types & Operating Environment Power
What's Oil ?!! Petroleum ?? hydrocarbons?
Why is Oil so important in today's life?!
History of Petroleum ??!


Video Porosity Permeability Thanks AAPG Academy Mohamed Shahin
Full transcript