RANA Ammad Bin Sadiq Institute of Geo-technology T U...
Transcript of RANA Ammad Bin Sadiq Institute of Geo-technology T U...
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RANA Ammad Bin Sadiq
Institute of Geo-technology
T U Bergakademie Freiberg
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Presentation out line
Stresses in the earth crust
The importance of stress
The measurement of stress
Borehole breakouts
Hydraulic Fracturing
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Stress
Stress is "force per unit area" - the ratio of applied force (F) and cross section(A) - defined as "force per area F/A”.
Rock Stresses
In-situ Stresses
e.g Tectonic stresses
Induced Stressese.g Mining , drilling etc.
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CHILE and DIANE assumptions
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Flat Jack Method
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Hydraulic Fracturing & Hydraulic test on pre-existing fractures
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Overcoring
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Doorstopper Methods
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Conical Strain Cell
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Deep Door Stopper Gauge SYSTEM (DDSG )
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Borehole Slotter
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Core Discing
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Deep borehole in use
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Deep boreholes in earthKola Super deep Borehole Russia
German Continental Deep Drilling Program(KTB), Germany
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Identification of Borehole Breakout
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Orientation and detection of Borehole Breakout Methods to Determine the Borehole Breakout include
Ultrasonic Borehole Imager (UBI)
Formation Micro Images (FMI)
Cross section of Borehole
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Ultrasonic Borehole Image
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Drilling Induced Fractures
Centerline Fracture
Petal Fracture
Handling Fracture
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Application of Borehole breakouts Evaluation of Regional Stress Regime.
Geomechanical well bore stability analysis for oil and gas production.
Rock Engineering (Tunnels, mine, Shafts, Caverensetc.)
Geothermal Energy.
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Geomechanical wellbore stability modeling
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Witten
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Ruhr-Bochum University
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Ruhr-Bochum University
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Dilatometer TestDilatometermessungen膨胀仪测试
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Drilling Auger
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Sample/Cores
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Insitu Dilatometer Test
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Nitrogen Gas Cylinder for Pressurizing Dilatometer
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Dilatometer Data Recording set
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Inserting of Dilatometer in Borehole
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Result of Dilatometer Test
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Performing Dilatometer Test
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Hydraulic Fracturing Testhydraulischen Bruchtest水力压裂
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Hydraulic Fracturing (How it looks)
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Assembly of HF Unit
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Packers of Different Sizes
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Pressure Control System
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Surface Recording of Data
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Impression of Induced Fracture
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Impression of Induced Fracture
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Imprints of Fracture
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Equipment for downhole Imaging
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Calculations for Hydraulic Fracturing
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Calculations for Hydraulic Fracture
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Orientation of Stresses
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Special Equipment for Deep Hot Dry Rocks
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Deep Borehole Simulator
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Control Unit for Deep borehole Simulator
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Hydraulic Fracture Tests in Small Core (At Laboratory)
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Drilling of Small Hole in Core
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Drill hole in Small Cores
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Preparation for the Test
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Triaxial Chamber and Small Core
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Preparation for the test
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Set up for Hydraulic Fracturing at Small Scale
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Pressure Pumps
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Hydraulic Fracture Test at small scale
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Recording of Results for Small Scale HF Test
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Core after Hydraulic Fracturing Test
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Initiation and propagation of Fracture
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THANK YOU