Geomechanics in tectonics 1300-OGMTP-GES
Basic principles about the tectonic stress field including stress in the earth's crust, relative stress magnitudes, Anderson’s classification scheme, stress magnitudes at depth, measuring in situ stress (overcoring, breakouts, hydraulic fracturing/leak-off tests), in the laboratory (strength, ultrasonic tests) as well geologic stress indicators.
Reservoir geomechanics:
-calculating overburden stress and porosity from density logs
-estimating the magnitude and the onset of overpressure
-estimating rock strenght from geophysical logs
-constraining stress magnitudes (stress polygon) from wellbore failure observations
Course coordinators
Type of course
Mode
Learning outcomes
After completing the course the student:
- understands the complex processes occurring in the rock mass;
- has knowledge of stresses in the earth's crust, can give relative magnitudes of stresses depending on the prevailing tectonic regime (according to Anderson's classification);
- has knowledge of the possibilities and research methods of geological stress assessment;
- can prepare the data necessary to perform geophysical interpretations of reservoir rocks;
- can calculate geomechanical parameters from geophysical data; is able to solve basic problems related to geological and geophysical drilling services;
- is able to interpret and correlate selected parameters related to geomechanics of reservoir rocks combined with observations of borehole damage
Assessment criteria
The pass is based on tasks performed during computer classes and an exam in the form of an own project made on a computer.
One absence is allowed.
Practical placement
-
Bibliography
- M.D.Zoback. 2007. Reservoir Geomechanics
- B.A. van der Pluijm, S.Marshak. 2004. Earth structure. An introduction to structural geology and tectonics
- R.Dadlez., W.Jaroszewski. 1994 - Tektonika, PWN, Warszawa
Additional information
Information on level of this course, year of study and semester when the course unit is delivered, types and amount of class hours - can be found in course structure diagrams of apropriate study programmes. This course is related to the following study programmes:
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