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Directional drilling (or
slant drilling) is the
practice of
drilling non-
vertical bores. It can be
broken down into four main groups:
oilfield directional...
- A
drifter drill,
sometimes called a rock
drill, is a tool used in
mining and
civil engineering to
drill into rock. Rock
drills are used for
making holes...
-
management and
international political economy,
vertical integration, also
referred to as
vertical consolidation, is an
arrangement in
which the supply...
-
Reach Drilling (ERD) is
directional drilling of very long non-
vertical wells. The aims of ERD are: a) to
reach a
larger area from one
surface drilling location...
- A
drill bit is a
cutting tool used in a
drill to
remove material to
create holes,
almost always of
circular cross-section.
Drill bits come in many sizes...
-
developed in
ancient Egypt by 3000 BC. The pump
drill was
invented during Roman times. It
consists of a
vertical spindle aligned by a
piece of
horizontal wood...
- available. It
drills rapidly, but
produces an
irregular hole
contaminated by soot and fuel oil. A Soviet-designed
drill used a
motor to
provide vertical vibration...
- the
drilling fluid. In the diagram,
these are
stands of
drill pipe
which are 2 or 3
joints of
drill pipe
connected and
stood in the
derrick vertically, usually...
-
other 2 or 3
joints of
drill pipe at a time (called a stand) and
racking them
vertically in the derrick. When
feasible the
driller will
start each successive...
-
deepest hole
drilled to date is the Kola
Superdeep Borehole, with a true
vertical drill-depth of
around 12 km (7.5 mi). However, the
distance to the center...
