Saturday, September 24, 2016

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introduction to drilling

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introduction to drilling


Why We Drill


TO GET THE BLACK GOLD ( OIL ) & GAS

TO GET WATER FROM UNDERNEATH

TO KNOW THE SUB-SURFACE

Prospect Selection

In case of Production wells, prospect selection is identified by the need to maintain or increase reservoir production

Exploration wells require geological and geophysical data 
gathering, processing and evaluation

Surface geological study
Subsurface mapping
Identification of structures e.g. anticlines, salt domes, fault traps, sand bodies lenses
Seismic Evaluation


Historical Background


1808 PERCUSSION DRILLING BY CHINESE
FIRST COMMERCIAL WELL

1859 CABLE TOOL PERCUSSION DRILLING

1918 WORLD DEEPEST WELL BY CABLE
TOOL ( 7386 ft )

1930 ROTARY DRILLING

What are the different Well Locations in terms of Drilling 

Onshore and Offshore

ADVANCEMENTS IN ROTARY DRILLING


DIRECTIONAL DRILLING

HORIZONTAL DRILLING

MULTILATERAL DRILLING

COIL TUBING DRILLING

Drilling Hazards


Tools dropped while drilling

Pipe stuck

Increased size of hole

Lost circulation problems

Sloughing shale

What we call a successful Drilling Operation


Through which we get our desired
results without any accidents.




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