Intro to oil well drilling ops pt 2

Well & drilling engineering
Introduction to Oil Well drilling
rig and equipment systems
Part 2 of 4.

Kingdom Drilling Services LtdJune 2009
Disclaimer
 These slides do not represent any standard, nor regulation, and create no
new or otherwise legal obligations. Their intent is to serve only as an
advisory guide, where all informational contained in content is intended to
assist employers and employees in providing a safe, healthful and
environmentally complaint workplace through effective prevention programs
adapted to the needs of each place of employment tools, equipment,
practices and procedures used.
Health Acts will exist in each specific operating region, location and/or
environment and will require employers and employees to comply with
hazard-specific safety and health standards. In addition, employers must
provide their employees with a workplace free from recognized hazards
likely to cause equipment failure malfunction, injury, serious loss or physical
harm. Employers can also often be cited for violating statutory rules and
regulations if there is a recognized hazard that they then do not take steps
to prevent or abate the hazard. However, failure to implement such
guidelines is not, in itself, a violation.

Kingdom Drilling Services LtdJune 2009 Kingdom Drilling Services Ltd2008
Introduction to equipment systems
 These slides present
an introduction to the
key aspects of both
onshore and offshore
drilling operational
tools and equipment
systems.

Drilling systems
 Essential jobs performed in the drilling
operations and the systems required are
now explained in the slides that follow.

Producing and transmitting power
 Power
requirements vary
considerably
 Generally land and
offshore rigs
require 1000HP-
3000HP power
capabilities

Rig power transmission
 Diesel engines are
generally the main
power sources.
 Power transmitted
electrically or
mechanically from
engines through
clutches to a
"compound" drive
to power the
drawworks, rotary,
and mud pumps
etc.

Engines & power transmission

Hoisting systems
 Deep wells are drilled
with long strings of pipe,
heavy weight pipe and
drill collars
 The total weight often
exceeding 500,000
pounds.
 Long strings of casing
also require greater
hoisting & braking
capacities

Hoisting drawworks
 A drawworks
 i.e. a revolving drum
around which drilling line
can be wound,

Hoisting equipment

Braking & catheads

The Rotary drilling process

Rotary system
 Rotary transmission is
delivered via a rotary
table or a top drive
‘electric or hydraulic’
system.
 These systems
provide the required
power & transmission
to turn ‘i.e. rotate’ the
drilling bit & drillstring.

Rotary and swivel systems

Derrick Drilling machines

Pipe handling tools & equipment
 Conventional typically
replaced by
 Iron roughnecks
 Top drives, Derrick
drilling machines
 Auto systems
 Auto slips
 Casing while drilling
 Pipe racking systems

Pipe
handling
with block
retract

Tubular handling operations

20
Running 135ft, 180ft? stands
17.6
9
19.7
24.8
45
23
30
40
21
45
0
5
10
15
20
25
30
35
40
45
C
ontractorG
O
M
Average
Singles
No
VFD
U
pg.
Singles
w
ith
V
FD
Upg.
13
3/8
in
D
oubles
13
5/8
in
Triples
9
5/8
in
D
oubles
11
3/4
in
D
oubles
TargetD
oubles
16
in
Triples
18
in
Triples

21
Automatic Pipe handling

22
Pipe handling

23
Pipe handling, RBS system.

Offline capabilities
 Ability to work
tubulars offline
 To reduce CRP time?
 BHA’s
 Drillstrings
 Completion strings
 Casing strings etc.
 Afford faster running
 Doubles vs. singles etc.
 Needs a bigger derrick
and drill floor?

25
Casing running

Riser handling

Circulating systems

Circulating system
 Drilling fluid-mud-
which is usually a
mixture of weighting
material, clays,
chemicals, and water
or oil, accounts for a
major portion of both
equipment and cost to
drill a deep well

Mud circulating system
 From the pump
through the standpipe
and kelly hose to the
swivel thence into the
kelly and down the
drill string

Mud circulating return line
 To a settling pit, then
to temporary storage
in a sump settling pit.
 Mud is treated for
contaminant removal
prior to returning to
point of origin i.e. the
active mud pit.

33
Fluids/cement management

Main Particulars – LP Mud
 Pit Design
 Split system; can treat two different
drilling fluid systems simultaneously
 750 m3 (4500 bbls) each
 bulk system can supply at least two
mud surge tanks at the same time.
 Solids control
 Gravity feed
 Split shaker banks to provide reduced
time to change fluids
 Cuttings Handling
 Provision for cuttings drier, blower,
cuttings boxes
 Mud Additive/Mixing system
 Completion Fluids
 Configured for reduced time to change
to completion fluid

Cementing System

Cementing
Full String Cementing
Steel
Casing
Borehole
Cement
Steel Liner
Liner Cementing

Casing & Cementing
 Casing
 Handling, running
 Bulk systems
 Mud & cement
 Cement standpipe
 Cementing equipment
 Cementing operations

38
Cementing Pumps and Mixers
Higher capacity pump
and improved mixer
Cement-mud pump
combination

BOP systems

Blow out preventers

Subsea BOP Stack issues
 Height and weight
 Pressures and bending loads
 Intervention
 Operating considerations
 Time savings
 LMRP & wellhead connectors
 Choke and kill line, id’s!

Basic well control
 Primary well control
 Flow in/out
 Pressure
 Volumes
 Pumping
 Displacement
 Drilling parameters
 Mud logging

Drilling in control

Loosing control

Wells out of control

Deck & loading capacities
• Drilling fluids and bulk
capacities
• Deck space
• Cranes and hoisting
equipment
• Storage
• Utilities

Logistics Management

New build example
Item Description
Water Depth 10,000 ft; 3000m
Drill Depth Ca. 40000 ft; 12000m
Payload,
Drilling Draft
13500mT (53,000 mT
displacement)
Payload,
Transit Draft
7000mT
Positioning DP-2 +, 8 pt mooring
w/600m chain for PIMS
(provisions for 12 pt
system)
Power 8x 4800 kW (Total 38.4
MW; 51800 hp)
Personnel 180
* Payload is VDL plus column load

Main Particulars - Storage
Item Imperial Metric
Fuel 25160 bbl 4000 m3
Drill Water 12580 bbl 2000 m3
Weighted Mud,
Surface
9435 bbl 1500 m3
Weighted Mud,
Pontoons
9435 bbl 1500 m3
Brine 4718 bbl 750 m3
Base oil 4718 bbl 750 m3
Bulk Mud 24,000 ft 3 680 m3
Bulk Cement 24,000 ft 3 680 m3

Questions please refer via?
www.kingdomdrilling.co.uk
End of presentation

Intro to oil well drilling ops pt 2

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