herramienta desviacion de pozos

Weatherford

239

Why Exit CasingWhy Exit CasingWhy Exit CasingWhy Exit Casing

&&&&

The Two Most UsedThe Two Most UsedThe Two Most UsedThe Two Most UsedMethodsMethodsMethodsMethods

Weatherford

240

Notes:Weatherford

241

Whipstock vs. Section Mill

Whipstock

Section Mill

Weatherford

242

•The basics to make a sound economic decision

•Notes:

Weatherford

243

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

Weatherford

244

Notes:Weatherford

245

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

Weatherford

246

Notes:Weatherford

247

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

Weatherford

248

Notes:Weatherford

249

Conclusion

Key: Positive Progress

Cost Effective

Weatherford

250

Notes:Weatherford

251

Weatherford

252

253

Eliminator Section Mill

Section MillWeatherford

254

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

Weatherford

256

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

Weatherford

258

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

Weatherford

260

Weatherford

•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

Weatherford

262

Weatherford

•For optimum cement job in section underreaming thesection is suggested

263

Weatherford

264

Weatherford

265

Whipstocks

Packer Type Whipback Mechanical Model “H” Cement TypeWhipback Hydraulic

Weatherford

266

Whipstocks

•The Basic Whipstocks and their applications:

•Packer Type

•WhipBack™ Mechanical / Hydraulic Set

•Model “H”

•Cement Type

Weatherford

267

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

Weatherford

268

•The Concave Section

•Concave Length

•Concave Angle

•Concave Radius

•Notes:

Weatherford

269

Model “H”AnchorSection

SLIP RETAINERSCREW

BI-DIRECTIONALSLIP

PLUNGERPIN

PLUNGERPLATE

COIL SPRINGS

ROLL PIN

TRIP BAR

BRIDGE PLUG

RUNNING POSITION SET POSITION

Weatherford

270

•The basic Anchor Section

•Type “H” anchor section mechanics and application:

•Notes:

Weatherford

271

BI-DIRECTIONALMAIN SLIP

FULCRUMSLIP

CENTRALIZERSPRING

POSITIONALSLIP

DIAGRAM A

DIAGRAM B

WhipbackWhipstockFulcrum

™

Weatherford

272

•The WhipBack™ Mechanical Anchor Section

•The WhipBack™ anchor section mechanics andapplication:

•The Fulcrum slip

•Notes:

Weatherford

273

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

274

•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:

Weatherford

275

Packer TypeWhipstock

PILOT LUG

RETRIEVALSLOT

CONCAVE FACE

LATCH

MULESHOESTINGER ASSY.

PACKER ASSY.

CONCAVESECTION

Non WeatherfordEquipment

Weatherford

276

•The Concave Sections are the Same•Packer Type with a hinge•PackWhip™ no hinge or ridged

•The latch and packer are the Anchor

•Notes:

Weatherford

277

Packer inSet Position

ALIGNMENTLUG

Weatherford

278

•Permanent Packer with Alignment Lug

•Notes:

Weatherford

279

DetermineOrientation of

Packer Lug

Weatherford

280

•Requires Gyro or MWD run to establish the position ofthe Alignment Lug

•Notes:

Weatherford

281

OrientatingWhipstock

with Stinger

COMPASS

STRING

MULESHOESTINGER ASSY.

WHIPSTOCKCONCAVE

LatchAssembly

Weatherford

282

•Orientating is done on the surface

•Notes:

Weatherford

283

DRILL PIPE

ORIENTING SUB

SETTING TOOL

SETTING STUD

CEMENTINGTUBE

TAIL PIPE

CementType

WhipstockBHA

Weatherford

284

•Open hole Whipstock

•Notes:

Weatherford

285

OUTER TUBE

INNER TUBE

CementType

WhipstockRun Completed

Calculated Top of Cement

100 Feet Above Whipstock

Weatherford

286

•Cement in combination with tail is the normal Anchor

•Can be screwed into a fish

•Can be run in conjunction with an overshot

•Notes:

Weatherford

287

CementType

WhipstockDrilling Out

Weatherford

288

•Once cement is set can be drilled with a bit or mill

•Notes:

Weatherford

289

Shear Stud

(Actual Size)

SCREWS INTOPILOT LUG

STOP FLANGE

STARTING MILLFITS OVERTHIS END

SHEARDIAMETER NUT FOR

SHEAR STUD

Weatherford

290

•The Shear Bolt has two Main puropses

•Carrying the whipstock in the hole

•Allows the setting and separation of the whipstock andmilling assembly

•Notes:

Weatherford

291

WhipstockPilot Lug

Weatherford

292

•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:

Weatherford

293

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

Weatherford

294

•This is the shearing sequence for the mechanical setwhipstocks

•Notes:

Weatherford

295

Mills

WATERMELONMILL

WINDOWMILL

STARTINGMILL

TAPERED MILL(Optional)

Weatherford

296

•The Mills for the Basic Whipstochs

•Starter Mill

•Window Mill

•Watermelon Mill

•Tapered Mill

•Notes:

Weatherford

297

Whipstock Retrieval MethodsWeatherford

298

•The Hook is the first option for retrieval

•The Die Collar is the second option for retrieval

•Notes:

•Notes:

Weatherford

299

Debris Brush

WhipbackWhipstock

Weatherford

300

•The Debris Brush is an option to keep cuttings away fromthe anchor

•Notes:

Weatherford

301

Concave

EndWeep Hole

Shear Pin

Tack welded inplace

AnchorEnd

Whipstock Concave Shear Out Assembly

Weatherford

302

•The Shear Out Assembly is an option to enhance the recoveryof the anchor section in extreme conditions

•Notes:

Weatherford

303

Weatherford

304

Weatherford

305

TripSaver™ Window Milling System

Weatherford

306

•This is Weatherford’s “one trip type” system

•Notes:

Weatherford

307

Whipstock & Lug

CPE Mill

Weatherford

308

•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:

Weatherford

309

Whipstock

Lug

CPE Mill

Whipstock

ConcaveTop view of CPE

Mill bolted toconcave

ShearScrews

LugFingers

MillBlade

CPE Mill Bolted to LugWeatherford

310

•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:

Weatherford

311

CPE Mill and Lug

Shear Bolts

Weatherford

312

•The relation between the mill, mill pilot, and lug

•The attachment of milling assembly and whipstock

•Notes:

Weatherford

313

CPE Mill and LugWeatherford

314

•Notes:

Weatherford

315

TripSaver™ Window Milling System

ROD WatermelonSpacer Mill

CPE™ Window MillStabilizer Sub

Weatherford316

•Flexible milling BHA

•Notes:

Weatherford

317

KEY POINTS for TripSaver BHAs

Weatherford

318

•This “High Performance” system has specific geometry for eachapplication

•Notes:

Weatherford

319

Key points ofTripSaver whipstocks

LW & HW signifies different casingweights

LW - light weight casing

HW - heavy weight casing

The Lug is Different forLW & HW TripSavers

Weatherford320

•Notes:

Weatherford

321

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

Weatherford

322

•New design mills to enhance the performance of thissystem

•Notes:

Weatherford

323

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#

Weatherford

324

•The brakes for the LW / HW systems

•Notes:

Weatherford

325

Weatherford

326

Weatherford

327

First RunBHA

Assembly

DRILL COLLARS ORHW DRILL PIPE

ORIENTATION SUB

ONE JOINTDRILL PIPE

BIT SUB

STARTING MILL

Weatherford

328

•The orientation of the whipstocks are completed with this Assembly •This Assembly makes the cut out

•Notes:

Weatherford

329

ORIENTATIONSLEEVE

LUG UBHOSub

ALLEN SCREWS

Weatherford

330

•This is the Gyro method but could be the MWD method

•This is not Weatherford equipment

•Notes:

Weatherford

331

Orientationof the

UBHO Subto the Concave

The Lug in the UBHO Sub should bepositioned opposite Concave to indicate the direction the Concave is facing.

Weatherford

332

•This showes the relation between the UBHO sub lug and the Concave

•Notes:

Weatherford

333

Scribe a line on BHAWeatherford

334

•Notes:

Weatherford

335

Scribe UBHO SubWeatherford

336

•Notes:Weatherford

337

Scribe StingerWeatherford

338

•Notes:Weatherford

339

Insert Stinger In SubWeatherford

340

•Notes:Weatherford

341

Align Scribe lines & Tighten Set ScrewsWeatherford

342

•Notes:Weatherford

343

Check Stinger & TattletaleWeatherford

344

•Notes:Weatherford

345

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°)

Weatherford

346

•This is the parameters for setting a hinge type whipstock

•This range can be increased depending on hole conditions

•Notes:

Weatherford

347

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

Weatherford

348

•Notes:Weatherford

349

First RunAssembly

Weatherford

350

•Notes:Weatherford

351

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

Weatherford

352

•This is the sequence for all mechanical set whipstocks

•Notes:

Weatherford

353

StartingCut Out

Critical Mill Area

Weatherford

354

•This is a very critical run •The milling length for each whipstock is specified

•Notes:

Weatherford

355

First RunCompleted

Weatherford

356

•On completion of this run a cut out and a ledge have been created

•Notes:

Weatherford

357

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

358

•This chart gives sizes•shear values + or -•run lengths•milling parameters•retrieval equipment

•Notes

Weatherford

359

Second RunBHA

Assembly

ONE JOINTDRILL PIPE

BIT SUB

WATERMELON MILLROUGH O.D.

WINDOW MILL

Weatherford

360

•The joint of drill pipe and it’s placement are critical to this run

•Notes:

Weatherford

361

Second RunAssemblyAt Coring

Point

CASING

CPE MILLAT CORE POINT

CONCAVE

Weatherford

362

•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:

Weatherford

363

MillsBlade Design

CPE WINDOWMILL

STANDARD WINDOWMILL

Weatherford

364

•Examples of mills to help pass “core point”

•Notes:

Weatherford

365

Second RunCompleted

Weatherford

366

•A minimum amount of uncontrolled drilling is required tocomplete this run•A full gage window is complete at this point

•Notes:

Weatherford

367

Third RunBHA

Assembly

DRILL COLLARS ORHW DRILL PIPE

BIT SUB

WATERMELON MILLROUGH O.D.

WATERMELON MILLROUGH O.D.

WINDOW MILL

Weatherford

368

•This is the assembly that elongates the window

•This run is made with drill collars

•Note:

Weatherford

369

Third RunCompleted

Weatherford

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:

Weatherford

371

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.

Weatherford

372

•This is a very effective option if trip time has a major impact on cost

•Notes:

Weatherford

373

Weatherford

374

Weatherford

375

Weatherford’s SRS™System

Multilateral Windowswith Selective ReentryCapability

Weatherford

376

•This system is used all over the world where the lateralscan be open hole completed or a liner dropped off in thelateral

•Notes

Weatherford

377

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

378

Notes:Weatherford

379

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

Weatherford

382

Notes:Weatherford

383

Whipstock

Drill Pipe

Latch Assy.

Packer

Whipstock Lug

Starter Mill /Running Tool

Debris Sub

Weatherford

384

•Starting run first lateral

•Notes:

Weatherford

385

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.

Weatherford

386

Notes:Weatherford

387

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

Weatherford

388

Notes:Weatherford

389

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

Weatherford

390

Notes:

Weatherford

391

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

Weatherford

392

Notes:

Weatherford

393

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

Weatherford

394

Notes:

Weatherford

395

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