herramienta desviacion de pozos
TRANSCRIPT
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Why Exit CasingWhy Exit CasingWhy Exit CasingWhy Exit Casing
&&&&
The Two Most UsedThe Two Most UsedThe Two Most UsedThe Two Most UsedMethodsMethodsMethodsMethods
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Notes:Weatherford
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Whipstock vs. Section Mill
Whipstock
Section Mill
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•The basics to make a sound economic decision
•Notes:
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Whipstock
Whipstocks should be used to exit casing:· when the exit has to be in a specific direction· when the exit has to go through more than one casing string· when the exit is into hard or very soft formations where
complete control of direction is required· when the point of exit has a poor cement bond· when exiting more than once from a single wellbore
The benefits of milling with a whipstock are:· requires less milling
· results in lower overall drilling costs
· retains the integrity of the casing
· allows access to the lower wellbore after the whipstock isretrieved
· allows for a more economical fluid program by generating fewercuttings
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Notes:Weatherford
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Section Mill
Section Mills should be used to exit casing:
· when a larger window is required for liner installation or other downhole drilling operations
· when a very hard formation at the window prevents an exitfrom a whipstock concave
· when a severe “dogleg” in the wellbore prevents running a whipstock to the kick-off point (KOP)
The benefits of milling with a section mill are: · running through severe “doglegs” because of the shorter
bottom hole assembly (BHA)
· removing entire casing sections to allow the running of larger OD tools
· allowing shorter radius drill-out for a greater build rate
· allowing multiple exits at the same depth
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Notes:Weatherford
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Section Mill Limitations
The limitations of milling with a section mill are:
· an uncontrolled direction at exit
· the loss of casing integrity
· more cuttings to be removed from the wellbore
· can only exit one casing string
· additional costs are incurred for requirements suchas a better fluid program, cement plugs, under-reaming,extra rig time, and extra trips in the hole
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Notes:Weatherford
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Conclusion
Key: Positive Progress
Cost Effective
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Notes:Weatherford
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253
Eliminator Section Mill
Section MillWeatherford
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Weatherford
•A Section Mill is a hydraulic operated milling tool
•Pump pressure is applied to an internal piston whichgenerates force on knives that cut the casing
•Knives were originally dressed with crushed carbide, butmost are being dressed with inserts
•Notes
255
Top Sub
O-ring Seal
Packing Seal
Set Screw
Expander Washtube
Body
Packing Seal
Piston Stop Nut
Piston Plate
Upper Washtube /Piston Assy.
Top Cylinder
Compression Spring
Nozzle
Socket Set Screw
O-ring Seal
O-ring Seal
Internal Retaining Ring
Jet Orifice
Retaining Plate Seal
Upper Washtube
Socket Cap Screw
Knife Retainer Block
Knife Pin
Knife Assembly
Knife Blade
O-ring Seal
Internal Retaining Ring
Orifice (Hi-Flow)
Expander Cam
Washout Inhibitor Sleeve
Lower Washtube
Stabilizer Sub Assy.
A-1 Hi-Flow
Section Mill
Breakdown
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Weatherford
•The A-1 Hi-Flow has the profile of the standard SectionMill
•Sweep is a very important factor in section milling
•Notes
257
Top Sub
Nozzle Retainer
Retainer Ring
Upper Piston
Upper Body
Compression Spring
O-ring Seal
Pin
Expander Cam
Stabilizer Pad
Key
Wear Sleeve
Lower Body
Knife Pin
Stop Pin
Knife
Braided Packing
Polypak Seal
Nozzle
Socket Head CapScrews
Eliminator
Section Mill
Breakdown
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Weatherford
•The New Eliminator Section Mill has a unique profile
•The Eliminator has the profile of a Pilot Mill
•With this profile the life of the mill is greatly increased
•Notes
259
DRILL PIPE
BIT SUB
DRILL COLLARS ORHW DRILL PIPE
CIRCULATING SUB(Optional)
SHOCK SUB
SECTION MILL
Section MillAssembly
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•This is the Standard (Best Practice) recommended BHA
•Key points of a section:
1. Mud propities for cleaning hole
2. Surface equipment
3. Length of section
4. Inclination of well bore at section
5. Cement & Formation at section
6. Centralizes in section
•Notes
261
Section MillAssembly
Down Hole
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•For optimum cement job in section underreaming thesection is suggested
263
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Whipstocks
Packer Type Whipback Mechanical Model “H” Cement TypeWhipback Hydraulic
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Whipstocks
•The Basic Whipstocks and their applications:
•Packer Type
•WhipBack™ Mechanical / Hydraulic Set
•Model “H”
•Cement Type
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ConcaveSection
3.5
4
4.25
4.5
5.25
5.5
6
6.25
7
8
9
10
11.5
1.12 & 3
1.12 & 3
1.5 & 3
1.5 & 3
1.86
1.92 & 3
2.15 & 3
2.15 & 3
2.54
2.98
3.18
3.58
3.88
2.25
2.25
2.5
2.5
3.125
3.125
3.5
3.5
4
4.44
5.75
5.75
6.25
WHIPSTOCKO.D.
CONCAVEANGLE (deg.)
CONCAVERADIUS
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•The Concave Section
•Concave Length
•Concave Angle
•Concave Radius
•Notes:
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Model “H”AnchorSection
SLIP RETAINERSCREW
BI-DIRECTIONALSLIP
PLUNGERPIN
PLUNGERPLATE
COIL SPRINGS
ROLL PIN
TRIP BAR
BRIDGE PLUG
RUNNING POSITION SET POSITION
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•The basic Anchor Section
•Type “H” anchor section mechanics and application:
•Notes:
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BI-DIRECTIONALMAIN SLIP
FULCRUMSLIP
CENTRALIZERSPRING
POSITIONALSLIP
DIAGRAM A
DIAGRAM B
WhipbackWhipstockFulcrum
™
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•The WhipBack™ Mechanical Anchor Section
•The WhipBack™ anchor section mechanics andapplication:
•The Fulcrum slip
•Notes:
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9/16-inch O-ringboss fitting (45°)
Stainless steel tubing
Shear stud
¼-inch NPTfitting (90°)
Starting Mill Whipstock concave Tubing to anchor
Hydraulic ConnectionsWeatherford
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•The Hydraulic WhipBack™ is the same as the mechanicalset with a few modifications
•Hydraulic connections added to the Starter Mill andWhipstock
•Piston added to Trip Bar
•Notes:
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Packer TypeWhipstock
PILOT LUG
RETRIEVALSLOT
CONCAVE FACE
LATCH
MULESHOESTINGER ASSY.
PACKER ASSY.
CONCAVESECTION
Non WeatherfordEquipment
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•The Concave Sections are the Same•Packer Type with a hinge•PackWhip™ no hinge or ridged
•The latch and packer are the Anchor
•Notes:
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Packer inSet Position
ALIGNMENTLUG
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•Permanent Packer with Alignment Lug
•Notes:
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DetermineOrientation of
Packer Lug
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•Requires Gyro or MWD run to establish the position ofthe Alignment Lug
•Notes:
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OrientatingWhipstock
with Stinger
COMPASS
STRING
MULESHOESTINGER ASSY.
WHIPSTOCKCONCAVE
LatchAssembly
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•Orientating is done on the surface
•Notes:
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DRILL PIPE
ORIENTING SUB
SETTING TOOL
SETTING STUD
CEMENTINGTUBE
TAIL PIPE
CementType
WhipstockBHA
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•Open hole Whipstock
•Notes:
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OUTER TUBE
INNER TUBE
CementType
WhipstockRun Completed
Calculated Top of Cement
100 Feet Above Whipstock
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•Cement in combination with tail is the normal Anchor
•Can be screwed into a fish
•Can be run in conjunction with an overshot
•Notes:
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CementType
WhipstockDrilling Out
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•Once cement is set can be drilled with a bit or mill
•Notes:
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Shear Stud
(Actual Size)
SCREWS INTOPILOT LUG
STOP FLANGE
STARTING MILLFITS OVERTHIS END
SHEARDIAMETER NUT FOR
SHEAR STUD
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•The Shear Bolt has two Main puropses
•Carrying the whipstock in the hole
•Allows the setting and separation of the whipstock andmilling assembly
•Notes:
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WhipstockPilot Lug
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•The pilot also has two main purposes
•Carrying the whipstock in the hole
•Guiding the Starter Mill into the casing to create the cut out
•Notes:
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STARTING MILLSHEAR STUD
ShearingSequence
SLIP RETAINERSCREW
ROLL PINON PLUNGER
WhipstockDiameter (“)
3.5”, 4”
4.25”, 4.50”
5.25”, 6”, 6.25” ,7”
8”
9”, 10”
11.5”
6,150
10,000
18,000
20,000
23,000
38,000
Shear LoadRequired (lbs.)
SHEAR VALUES FORSTANDARD SHEAR STUD
NOTE: See chart WHP-103 for other shearvalves for special shear studs.
Whipstock O.D.
3.5”, 4”
4.25”, 4.50”
5.25”, 6”, 6.25” ,7”
8”
9”, 10”
11.5”
3900
3900
8800
8800
8800
8800
lbs. Requiredf/Shear
SHEAR VALUES FOR ROLL PINS
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•This is the shearing sequence for the mechanical setwhipstocks
•Notes:
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Mills
WATERMELONMILL
WINDOWMILL
STARTINGMILL
TAPERED MILL(Optional)
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•The Mills for the Basic Whipstochs
•Starter Mill
•Window Mill
•Watermelon Mill
•Tapered Mill
•Notes:
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Whipstock Retrieval MethodsWeatherford
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•The Hook is the first option for retrieval
•The Die Collar is the second option for retrieval
•Notes:
•Notes:
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Debris Brush
WhipbackWhipstock
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•The Debris Brush is an option to keep cuttings away fromthe anchor
•Notes:
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Concave
EndWeep Hole
Shear Pin
Tack welded inplace
AnchorEnd
Whipstock Concave Shear Out Assembly
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•The Shear Out Assembly is an option to enhance the recoveryof the anchor section in extreme conditions
•Notes:
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TripSaver™ Window Milling System
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•This is Weatherford’s “one trip type” system
•Notes:
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Whipstock & Lug
CPE Mill
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•This system uses proven technology with new technology to deliverresults
•A millable Guide Lug on the proven WhipBack™ whipstock
•A new design lead mill the TripSaver CPE Mill
•Notes:
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Whipstock
Lug
CPE Mill
Whipstock
ConcaveTop view of CPE
Mill bolted toconcave
ShearScrews
LugFingers
MillBlade
CPE Mill Bolted to LugWeatherford
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•This design gives you a Full Gage window and rat hole
•In the event of any problems, such as premature setting thiswhipstock can be retrieved with standard equipment with out anymill
•Notes:
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CPE Mill and Lug
Shear Bolts
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•The relation between the mill, mill pilot, and lug
•The attachment of milling assembly and whipstock
•Notes:
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CPE Mill and LugWeatherford
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•Notes:
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TripSaver™ Window Milling System
ROD WatermelonSpacer Mill
CPE™ Window MillStabilizer Sub
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•Flexible milling BHA
•Notes:
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KEY POINTS for TripSaver BHAs
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•This “High Performance” system has specific geometry for eachapplication
•Notes:
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Key points ofTripSaver whipstocks
LW & HW signifies different casingweights
LW - light weight casing
HW - heavy weight casing
The Lug is Different forLW & HW TripSavers
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•Notes:
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The Blades of the Spacer Mills are:
•Tightly wrapped for 360º contact
•1/3 of gage O.D. is smooth
•2/3 of gage O.D. is rough
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•New design mills to enhance the performance of thissystem
•Notes:
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TripSaver™ WindowMilling System
CasingSize
WeightRange
4-1/2” 9.5 # 13.5#
5-1/2” LW 14.0# 17.0#
5-1/2” HW 20.0# 23.0#
7.00” LW 20.0# 26.0#
7.00” HW 29.0# 35.0#
7-5/8” LW 24.0# 29.7#
7-5/8” HW 33.7# 39.0#
8-5/8” LW 28.0# 36.0#
8-5/8” HW 40.0# 49.0#
9-5/8” LW 32.3# 40.0#
9-5/8” HW 43.5# 53.5#
10-3/4” 32.8# 45.5#
13-3/8” 48.0# 72.0#
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•The brakes for the LW / HW systems
•Notes:
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First RunBHA
Assembly
DRILL COLLARS ORHW DRILL PIPE
ORIENTATION SUB
ONE JOINTDRILL PIPE
BIT SUB
STARTING MILL
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•The orientation of the whipstocks are completed with this Assembly •This Assembly makes the cut out
•Notes:
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ORIENTATIONSLEEVE
LUG UBHOSub
ALLEN SCREWS
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•This is the Gyro method but could be the MWD method
•This is not Weatherford equipment
•Notes:
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Orientationof the
UBHO Subto the Concave
The Lug in the UBHO Sub should bepositioned opposite Concave to indicate the direction the Concave is facing.
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•This showes the relation between the UBHO sub lug and the Concave
•Notes:
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Scribe a line on BHAWeatherford
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•Notes:
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Scribe UBHO SubWeatherford
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•Notes:Weatherford
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Scribe StingerWeatherford
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•Notes:Weatherford
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Insert Stinger In SubWeatherford
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•Notes:Weatherford
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Align Scribe lines & Tighten Set ScrewsWeatherford
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•Notes:Weatherford
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Check Stinger & TattletaleWeatherford
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•Notes:Weatherford
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WellboreDirection
Center line of hinged whipstock concave must beset within 30° either side of Low Side.
LOW SIDE(ex: 270°)
HIGH SIDE(ex: 90°)
HIGH SIDE(ex: 240°)
LOW SIDE(ex: 60°)
(ex: 30°)(ex: 90°) - 30°+ 30°
LOW SIDE
HIGH SIDE &WELLBORE DIRECTION
HIGH SIDE &WELLBORE DIRECTION
LOW SIDE
Eample 1.
Eample 2.
Concave Setting
Range
High
Side
LOW SIDE(ex: 60°)
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•This is the parameters for setting a hinge type whipstock
•This range can be increased depending on hole conditions
•Notes:
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LONG FLAT SIDE OFSTARTING MILL TOWARDSCONCAVE FACE
STARTING MILL
NUT FORSHEAR STUD
STARTING MILLFITS OVER THISEND
STOP FLANGE
PILOT LUG
CONCAVESECTION
SCREWS INTOPILOT LUG
Fit ofStarting Millto Whipstock
See Chart for Make-upTorque for Shear Stud
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•Notes:Weatherford
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First RunAssembly
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•Notes:Weatherford
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STARTING MILLSHEAR STUD
ShearingSequence
SLIP RETAINERSCREW
ROLL PINON PLUNGER
WhipstockDiameter (“)
3.5”, 4”
4.25”, 4.50”
5.25”, 6”, 6.25” ,7”
8”
9”, 10”
11.5”
6,150
10,000
18,000
20,000
23,000
38,000
Shear LoadRequired (lbs.)
SHEAR Values FORSTANDARD SHEAR STUD
NOTE: See chart WHP-103 for other shearvalves for special shear studs.
Whipstock O.D.
3.5”, 4”
4.25”, 4.50”
5.25”, 6”, 6.25” ,7”
8”
9”, 10”
11.5”
3900
3900
8800
8800
8800
8800
lbs. Requiredf/Shear
SHEAR VALUES FORSHEAR ROLL PINS
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•This is the sequence for all mechanical set whipstocks
•Notes:
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StartingCut Out
Critical Mill Area
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•This is a very critical run •The milling length for each whipstock is specified
•Notes:
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First RunCompleted
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•On completion of this run a cut out and a ledge have been created
•Notes:
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MILLS RETRIEVING TOOLS
CASING WHIPSTOCKSTARTING MILL WINDOW
WATER-MELON
MILLINGPARAMETERS SHEAR VALUES RET HOOK
DIECOLLAR
OutsideDiameter
(IN)
NOMWeight(LBS)
DriftDiameter
OutsideDiameter
(IN)
MillsDiameter
(IN)
MillConns
Part No.Run
Length(IN)
Part No. Part No.Maximum
RPM(LBS)
MaximumWeight(LBS)
Trip BarRoll Pin(LBS)
STD ShearStud(LBS)
Part No.Load Cap
(LBS)Part No.
4.500 13.50 3.795 3.50 3.75 13974-001 11.50 41530-001 11137-001 140 4,000 3,900 6,150 014192 90,000
4.500 11.60 3.875 3.50 3.88 2.375 Reg 13974-002 14.30 41530-002 11137-002 140 4,000 3,900 6,150 014192 90,000
4.500 9.50 3.965 3.50 3.88 2.375 Reg 13974-002 18.80 41530-002 11137-002 140 4,000 3,900 6,150 014192 90,000
5.000 18.00 4.151 4.00 4.12 2.375 Reg 13974-004 15.20 41535-001 11050-001 140 4,000 3,900 6,150
5.000 15.00 4.283 4.00 4.25 2.375 Reg 13974-005 16.30 41535-002 11050-002 140 4,000 3,900 6,150
5.000 13.00 4.369 4.00 4.38 2.375 Reg 13974-006 17.60 41535-003 11050-003 120 4,500 3,900 6,150
5.000 11.50 4.435 4.00 4.38 2.375 Reg 13974-006 18.70 41535-003 11050-003 120 4,500 3,900 6,150
5.500 23.00 4.545 4.25 4.50 2.875 Reg 13978-001 19.80 41532-001 11048-0001 120 4,500 3,900 10,000 014001 90,000
5.500 20.00 4.653 4.25 4.63 2.875 Reg 13978-002 20.40 41532-002 11048-002 120 4,500 3,900 10,000 014001 90,000
5.500 17.00 4.767 4.50 4.75 2.875 Reg 13978-003 21.90 41532-003 11048-003 120 4,500 3,900 10,000 014001 90,000
5.500 15.50 4.825 4.50 4.75 2.875 Reg 13978-003 22.50 41532-003 11048-003 120 4,500 3,900 10,000 014001 90,000
5.500 14.00 4.887 4.50 4.88 2.875 Reg 13978-005 23.20 49570-001 11138-001 120 4,500 3,900 10,000 014001 90,000
5.500 13.00 4.919 4.50 4.88 2.875 Reg 13978-005 23.90 49570-001 11138-001 120 4,500 3,900 10,000 014001 90,000
6.000 23.00 5.115 4.50 5.00 2.875 Reg 41439-001 17.90 49570-003 11138-003 100 5,250 3,900 10,000 014010 125,000
6.000 20.00 5.227 4.50 5.12 2.875 Reg 41439-001 18.70 49570-004 11138-004 100 5,250 3,900 10,000 014010 125,000
6.000 18.00 5.299 4.50 5.25 2.875 Reg 41439-001 19.50 49570-005 11138-005 100 5,250 3,900 10,000 014010 125,000
6.000 15.00 5.399 4.50 5.38 2.875 Reg 41439-001 20.30 49570-006 11138-006 100 5,250 3,900 10,000 014010 125,000
See Chart for Run Length or Milling DistanceWeatherford
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•This chart gives sizes•shear values + or -•run lengths•milling parameters•retrieval equipment
•Notes
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Second RunBHA
Assembly
ONE JOINTDRILL PIPE
BIT SUB
WATERMELON MILLROUGH O.D.
WINDOW MILL
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•The joint of drill pipe and it’s placement are critical to this run
•Notes:
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Second RunAssemblyAt Coring
Point
CASING
CPE MILLAT CORE POINT
CONCAVE
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•Very slow surface speed in the center of the mill at “corepoint” can cause damage to the mill•Options:
•change parameters•apex on mill•CPE™ mill
•Notes:
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MillsBlade Design
CPE WINDOWMILL
STANDARD WINDOWMILL
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•Examples of mills to help pass “core point”
•Notes:
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Second RunCompleted
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•A minimum amount of uncontrolled drilling is required tocomplete this run•A full gage window is complete at this point
•Notes:
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Third RunBHA
Assembly
DRILL COLLARS ORHW DRILL PIPE
BIT SUB
WATERMELON MILLROUGH O.D.
WATERMELON MILLROUGH O.D.
WINDOW MILL
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•This is the assembly that elongates the window
•This run is made with drill collars
•Note:
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Third RunCompleted
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370
•Approximately 10’ of rat hole (uncontrolled drilling) is all that isrequired to complete the elongation run.
•This run will allow maximum liner size to pass through the window
•Notes:
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AlternativeSecond Run
BHAAssembly
ONE JOINTDRILL PIPE
BIT SUB
WATERMELON MILLROUGH O.D.
WATERMELON MILLROUGH O.D.
WINDOW MILL
Alternative Second Run BHA
Alternative second run BHA for 2 - tripwhipstock operation.
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•This is a very effective option if trip time has a major impact on cost
•Notes:
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Weatherford’s SRS™System
Multilateral Windowswith Selective ReentryCapability
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•This system is used all over the world where the lateralscan be open hole completed or a liner dropped off in thelateral
•Notes
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Pack-Off Rubber
Anti-Rotation Slips
Orientation Riser
Orientation Slot
Packer Information:• Permanent set.
• Big Bore I.D.
• Lower zone access or Isolation.
• Can be set with wireline, coil tubing orpipe.
• Permanent downhole reference point.
Weatherford
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Notes:Weatherford
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Packer
Orientation
Assembly
Orientation Riser
Casing CollarLocator
Gyro Survey Tool
Orientation Lug
Packer
Weatherford
380
Notes:Weatherford
381
Whipstock and
Latch Assembly
ReleasableLatch
Assembly
OrientationString
SplineAssembly
Collet
Orientation Lug326 Degrees
Whipstock130 Degrees
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Notes:Weatherford
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Whipstock
Drill Pipe
Latch Assy.
Packer
Whipstock Lug
Starter Mill /Running Tool
Debris Sub
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•Starting run first lateral
•Notes:
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FirstWindow
Complete
Packer Azimuth326 Degrees
Window Azimuth130 Degrees
5’ - 10’Rat hole
“DirectionalCompany can nowdrill the lateral “
** When the lateral iscompleted, the removalof the Whipstock isnecessary for window#2 installation.
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Notes:Weatherford
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Second Window InstallationWhipstock Orientation:
!. Make up Latch Assembly andExtensions ( 32 feet ) to Whipstock.
2. Orientate Packer Slot to Key inLatch assembly.
Azimuth reading was obtainedfrom packer orientation run.
( 326 Degrees )
3. Align Whipstock Face tocustomers second windowazimuth.
( 316 Degrees )
.
Drill CollarsExtensions
32 feet
OrientationLug
326 degrees
SecondWhipstock316 Degrees
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Notes:Weatherford
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Second WindowInstallation Complete
First Window130 Degrees Azimuth
Drill Collar Extensions32 Feet
Drill Collar Extensions: Are used to space out required distance from one window to the next. The extensions are madeout of drill collar stock instandard sections orcustomized lengths if required.
SecondRetrievableWhipstock
Second Window316 Degrees Azimuth
Pa ckerAzimuth326 Degrees
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Notes:
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Third Window InstallationWhipstock Orientation:
!. Make up Latch Assembly andExtensions ( 60 feet ) to Whipstock.
2. Orientate Packer Slot to Key inLatch assembly.
Azimuth reading was obtainedfrom packer orientation run.
( 326 Degrees )
3. Align Whipstock Face tocustomers third window azimuth.
( 130 Degrees ) OrientationLug
326 degrees
Drill CollarsExtensions
60 feet
ThirdWhipstock130 Degrees
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Notes:
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Debris Sub
Latch Assembly
TIW Packer withOrientation Slot326 Degrees Azimuth
Drill Collar Extensions60 feet of 4-3/4” OD
First Window130 Degrees Azimuth
Second Window316 Degrees Azimuth
Third Window130 Degrees Azimuth
Third WindowInstallation Complete
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Notes:
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Reentry Guide Orientation
“Lateral #2 Reentry”!. Make up Latch Assembly and
Extensions ( 32 feet ) to ReentryGuide.
2. Orientate Packer Slot to Key inLatch assembly.
Azimuth reading was obtainedfrom packer orientation run.
( 326 Degrees )
3. Align Reentry Guide Face towindow azimuth.
( 316 Degrees ) Orientation
Lug326 degrees
Drill CollarsExtensions
32 feet
Reentry Guide316 Degrees
Weatherford
396
Notes:
Weatherford
397
Running Tool
Re-entry Guide
Canfield Bushing
Running Tool andRe-entry Guide
Assembly
Releasable Latch
Weatherford
398
Notes:
Weatherford
399
Packer Assembly
Extension
Running Tool Assembly
Setting ReentryGuide
Latch Guide into Packer.
Pick up weight to verify latchassembly is engaged.
Apply down weight to shearsafety pins.
J-Out of Reentry Guide .
Weatherford
400
Notes:
Weatherford
401
Selected LateralReady For
Reentry
Weatherford
402
Notes:
Weatherford
403
Multi-Lateral/Selective ReentryPacker Type Whipstock
1391 8-5/8 36# J55
5301 TOP OF WINDOW5304 TOP OF WHIPSTOCK
5310 KOP
5318 CASING COLLAR5321 TOP OF WINDOW5324 TOP OF WHIPSTOCK
5330 KOP
5337 TOP OF WINDOW5340 TOP OF WHIPSTOCK
5346 KOP5349 TOP OF PACKERLARGE I.D. PACKER3-in. I.D.5354 5-1/2 SHOE
5-1/2 14#J-55
CASING I.D. 5.012CASING DRIFT 4.887WALL THICKNESS .244
Weatherford
404
Notes:
Weatherford
405
Weatherford
406
Weatherford
407
Coiled TubingConvey
Whipstock
Weatherford408
•The whipstock is a WhipBack™
•Notes:
Weatherford
409
Coiled Tubing Convey Whipstock
Setting ToolSUPPORT
LUG
SHEARBOLT
RETRIEVINGSLOT
VALVESTOP
Weatherford
410
•This whipstock is run on a setting tool and astarting mill run is then made
•Notes
Weatherford
411
Starting Mill
Coiled Tubing Convey Whipstock
SHUT-OFFVALVE
VALVESTOP
SHUTOFFVALVE
Weatherford
412
•There is a special design Starter Mill to overcomethe depth control problems with coil
•Notes:
Weatherford
413
Coiled Tubing Convey Whipstock
Window Mill
Weatherford
414
•The next mill run is a Window Mill•Followed by the elongation run
•Notes:
Weatherford
415
Weatherford
416