This document outlines an agenda and topics for a class on fishing technology best practices. The class will provide an overview of different fishing techniques and principles that have worked in the past to solve customer problems. It will not focus on hands-on training. The agenda covers topics like job planning, fishing for stuck pipe, open hole fishing, and more. Ground rules for the class are also outlined, emphasizing participation, respect, and having fun.

1. 8-3-2000 1

2. Introduction
• Share our experiences
• Learn from each other
• Understand tools/ applications
• Match tools/ application to needs
8-3-2000 2

3. Great Expectations
• Practical suggestions for problem solving
• Sales ideas
• What’s new
• Overview - Grounding
• Networking
• Get feedback
8-3-2000 3

4. What the class is !
The class is designed to look at the big picture of
which techniques, concepts and principles have
worked in the past to solve customers problems
The name of the class is “ Weatherford’s Best
Practices in Fishing Technology”
What the class is not !
This is not a class to learn how to re-dress tools
There will not be a lot of hands on training
8-3-2000 4

5. Ground Rules
• Be on time
• Be respectful ( diversified cats )
• Participate
• Share equal air time
• No cell phones, please
• Have fun
8-3-2000 5

6. W.I.I.F.M.
• Pride of achievement
• Develop customer base
• Increased job security
• Pay raises/Promotion/Travel
8-3-2000 6

7. Formula for success
• Mentor
• Visualization skills
• Communication skills
• Behave authentically with integrity
• Enjoy what you do
8-3-2000 7

8. Model for Success
• Pair of Hands Role
• Collaborative Role
• Expert Role
8-3-2000 8

9. Coordinator Engineer
Fisherman Company Man
ONE 8-3-2000 WAY - LIMITED OPTIONS
9

10. Pair-of-Hands Role
• Fisherman is dependent on Co. Man to isolate
the problem and form action plan
• Fisherman / passive role / expertise wasted
• If Co. Man’s diagnosis if wrong, the action plan
won’t work
• Fisherman becomes a convenient scapegoat
8-3-2000 10

11. Coordinator Engineer
Fisherman Company Man
RELATIONSHIP/PARTNERSHIP
MULTIPLE OPTIONS
8-3-2000 11

12. Collaborative Role
• Hook fisherman’s expertise to Co. Man’s
knowledge of how the customer operates
• Problem solving becomes a joint undertaking
• Communication is two way
• Collaboration is considered essential
• Decision making is bilateral
• Responsibility for success or failure is shared
8-3-2000 12

13. Expert Role
• Trying to solve a problem for 3 days, calls a
Weatherford expert
• I have done all I can, you’re the expert
• Find out what’s wrong and fix it
• Free hand to do whatever you want
• Keep me posted on what you intend to do
8-3-2000 13

14. Engineer
Go-to-Guy/Expert Sales
Professional
8-3-2000 14

15. TEAM WORK
8-3-2000 15

16. Thought for Today
None of us is as smart as all of us.
8-3-2000 16

17. Winds of Change
• Globalization, demographics and new
technology are the driving forces for change
• This opens the door for consolidation and
widely dispersed operations
• A growing emphasis on speed, flexibility and
innovation is required
• How will these forces impact your job?
8-3-2000 17

18. Systemic Systems
• Si-stem-ik - each part effects the whole
• We work in a system where individual patterns
of behavior effect everyone else in the company.
• Training and human resource development is
key to insuring this system links individual
performance to organizational goals. *
8-3-2000 18

19. Agenda
• Job planning/ record keeping
• Fishing for Junk
• Pipe recovery methods
• Open hole fishing
• Drilling fluids
• Fishing for Parted Pipe
• Cased hole fishing
• Jarring/Jar placement
• Hydro-Pro/BHA drawing
• Casing repair
• Wireline fishing
• Reversing Tool
• Trip saver bushing
• Multi-string cutting
• M.O.S.T. tool
• W.O.B.O. tool
• Drill collar spear
• Sub sea casing patch
8-3-2000 19

20. Quiz
• Gain knowledge of training needs
• Another at the end of classes
• All questions will be discussed
• Take one idea home
8-3-2000 20

21. 8-3-2000 21

22. Today’s Agenda
• Job planning; Record Keeping
• Fishing for Junk
• Pipe recovery methods
• Open hole fishing
8-3-2000 22

23. Job Planning/ Record Keeping
Successful fishing jobs start with:
• Excellent job planning
• Meticulous record keeping
Proper preparation ensures that most
options are planned for and that
equipment, personnel and other assets are
available when needed.
8-3-2000 23

24. Job Planning
Collect information/specific job
• Do your homework thoroughly
• Formulate a game plan
• Present options to customer*
8-3-2000 24

25. Non Planned Fishing Jobs
True, real time fishing is not planned.
When an unexpected problem arises, immediate
help from a fishing expert is required.
Such jobs would include:
• bit cones in hole
• a twisted off drill string
• stuck pipe
8-3-2000 25

26. How Observant Are We
Feature films are the result of years of
scientific study combined with the experience
of years.
8-3-2000 26

27. Tubular Goods
Drilling and Well Installation Steps
8-3-2000 27

28. Conductor Pipe
•Prevents erosion of the hole around the base of the rig
•Protects the subsequent casing from corrosion
•May be used to support some of the Wellhead load
8-3-2000 28

29. Surface Casing
•Protects the well from cave-in
•Prevents freshwater sand from contamination.
8-3-2000 29

30. Intermediate Casing
•Seals off weak zones.
•Seals off older production zones.
•Protects against lost of circulation.
8-3-2000 30

31. Production Casing
•In general is the last string.
•Protects Tubing strings and others tools.
8-3-2000 31

32. Liner
•Hangs off the last string.
•Can be run in a shorter amount of time.
•Same function as the Intermediate Casing.
8-3-2000 32

33. Tubing
•Transmission of fluids or gases to the surface.
•Removed from the wellbore as necessary.
8-3-2000 33

34. Opportunities!
• Well installation services
• Casing handling equipment
• Automatic fill up system (Lafleur Autoseal)
• Cementation products
• Well logging services
• Drilling equipment rentals (DP, DC, Stab.)
• Well control equipment ( BOP’s )
• Directional drilling services
8-3-2000 34

35. Opportunities
• Electric wireline services
• Underbalanced drilling services
• Liners and liner hanging services
• Casing exit, Whipstock’s, Multi-laterals
• Casing repair, internal/external patches
• Tubulars, Packers, inflatable screens,
artificial lift services, TT services etc.
• P@A services, slot recovery, MOST tool
8-3-2000 35

36. Ask the Important Questions
• Size, weight and depth of all casings?
• Hole size, angle and depth?
• Size/ connections work string drill collars?
• What is the fish ?
• Jars in the hole and are they working ?
• Operations at time of incident ?
8-3-2000 36

37. Fish in Hole
1. 7-7/8 Rock Bit with 4-1/2 Reg. Pin .70
2. Mud Motor x 6-1/2” x 2-7/8 x 4-1/2
Reg. double box 20.50
3. 4-1/2 X.H. box x 4-1/2 Reg. Pin sub 1.89
4. Pony drill collar x 6-1/4 x 3.oo x 4-1/2 X.H. 10.63
5. 6-1/4 x 7-7/8 stabilizer x 4-1/2 X.H. x 2-3/8 I.D. F.N.=1.10 4.55
6. Float Subx 6-1/4 x 2-3/8 I.D. 2.23
7. M/S subx 6-1/4 x 2-3/8 x 4-1/2 X.H. 2.65
8. M.W.D. x 6-1/2 x 2-7/8 x 4-1/2 X.H. 31.10
9. Monel drill collar x 6-1/2 x 2-1/2 x 4-1/2 X.H. 30.70
10. 9 x drill collars x 6-1/4 2-3/4 x 4-1/2 X.H. 272.08
8-3-2000 37
378.92

38. Cardinal Rules of Fishing
1. Know your dimensions:
• O.D., I.D., length of fish.
• O.D., I.D., length of fishing assembly.
• O.D., I.D., length of the work string.
• Know where the top of the fish is.
8-3-2000 38

39. Cardinal Rules of Fishing
2. Know all tensile and torsional
3. Never rotate the fish out of the hole.
4. Fast trip time is not always the best.
5. Must be OD fishable.
8-3-2000 39

40. Cardinal Rules of Fishing
6. Familiarize yourself with the fish.
• Make use of the composite catalog
• Technical manuals
• Manufacturers drawings
• Have an exact replica of the fish
8-3-2000 40

41. Maximum O.D. of Tools That Can be Washed Over
Casing Size Maximum Wash Pipe to Cover
O.D. I.D. Wt. O.D. O.D. I.D. Wt.
4-1/2 3.754 16.60 2-3/4 3-1/2 2.955 9.20
4-1/2 3.920 13.50 3-1/16 3-3/4 3.250 9.50
5 4.276 18.00 3-1/4 4 3.428 11.60
5-1/2 4.670 23.00 3-1/2 4-3/8 3.749 13.58
5-1/2 4.778 20.00 3-5/8 4-1/2 3.826 16.60
6 5.240 23.00 4-1/8 5 4.276 18.00
6-5/8 5.791 28.00 4-5/8 5-1/2 4.892 17.00
7 6.004 35.00 4-3/4 5-3/4 4.990 22.50
7 6.276 26.00 5-1/8 6 5.325 20.00
8-3-2000 41

42. Minimum Size Casing Maximum Tools to Run Wash Pipe to Cover With
7-5.8 6.625 39.00 5-3/8 6-3/8 5.625 24.00
8-5/8 7.511 49.00 6 7 6.276 26.00
8-5/8 7.825 36.00 6-3/8 7-3/8 6.625 29.00
8-5/8 8.017 28.00 6-5/8 7-5/8 6.875 29.70
9-5/8 8.535 53.50 6-7/8 8-1/8 7.185 39.50
9-5/8 8.835 40.00 7-3/8 8-3/8 7.625 35.00
10-3/4 9.760 55.50 7-7/8 9 8.150 40.00
10-3/4 9.950 45.50 8-3/8 9-5/8 8.681 47.00
13-3/8 All WTS. 10-5/8 11=3/4 10.88 54.00
16 All WTS. 12 13=38 12.415 68.00
8-3-2000 42

43. Arriving on Location
• Introduce yourself to Co. man
• Verify all pertinate information
• Record BHA/ pipe in hole/driller
• Count all work string on location
8-3-2000 43

44. Arriving on Location
• Tie off any pipe in derrick
• Clean out V door, mark first joint
• On first trip out, strap out of hole
• Verify pipe count/ top of the fish
8-3-2000 44

45. Accurate Top of Fish
• Stay with these numbers
• Use In/out method, check mistakes
• Ask Drillers to notify you if they pick up
or lay down any pipe
8-3-2000 45

46. In and Out Method
Out In
D.O.K. 23.65 Shoe 4.60
B.H.A. 311.35 3 Jts. WP 95.96
1Std. D.P. 94.00 Sfty. Jt. 2.75
Total out 429.00 Jars 6.90
Total In 411.66 X-over 1.45
Diff. &Dok 17.34 Tools 111.66
10 D.C. 300.00
B.H.A. 411.66
19 Std. DP 1786.00
2197.66
D.O.K. 17.34
T.O.F. 2215.00
8-3-2000 46

47. In and Out Method
• To change from overshot to washpipe string
• Tally length of string, plus kelly to TOF
• Compute laid out length including DOK
• Subtract picked up from laid down
• The difference is DOK with new string
• Total out must exceed total up to use this
formula.
8-3-2000 47

48. K.B. Measurements
• The Standard Oilfield Measurement to any
depth down hole is recorded from ground
level, plus the distance to the kelly
bushing[KB] on the rig that drilled the well.
• This is called the original elevation and is
recorded in the well file.
• If a workover rig is later employed , the
difference in this rigs elevation from the
original one must be accounted for.
8-3-2000 48

49. KB Measurements
• The difference in elevation is added to
or subtracted from the current pipe
tally in order to correlate with the
original well elevation.
• This can be of great importance in
some cases.
8-3-2000 49

50. KB Measurements
• Example: Original elevation is 30¢.
• Current elevation is 6¢.
• The difference of 24¢ must be added to
the current pipe tally so that
downhole depths will correlate.
8-3-2000 50

51. Official Well Depth
Well depth = hole depth plus elevation
Where:
• hole depth = ground level to TD
• elevation = ground level to KB
8-3-2000 51

52. Tally Book Rules
• Accurate, legible & current
• Time, date, trip/ job number
• Brief description/each trip
• Any accidents should be recorded
• As if to pass on to relief man
• Keep book for future reference
8-3-2000 52

53. Well Data
• Last casing: 8-5/8 x 28# @ 5611
• 7-7/8” HOLE: T D @ 9557’
• Bit stuck 74’ off bottom @ 9483’
• Angle of hole = 35%
• Wt.9.8#; Vis. 36 = WL= 20 YP = 10
8-3-2000 53

54. Window Milling
Depth R.P.M. S.P.M. W.O.B. Torque Time Minutes Feet
3284-85 88-116 65 1-2 1,000 00:15-01:00 45 1
86 116 65 3 12-18 01:30 30 2
87 116 65 4 11-15 01:45 15 3
88 116 65 4 12-16 01:55 10 4
89 116 65 4. 5 12-16 02:10 15 5
90 116 65 4. 5 12-14 02:25 15 6
91 116 65 4. 5 12-16 02:30 5 7
92 116 65 4. 5 10-18 02:33 3 8
8-3-2000 54

55. Example:Tally Book
Trip# 1 @ 2:00 pm 2-4-98 Union Oil
5-3/4 od x 4-13/16 id: bu = 5.90 serial # w 8925 5-3/4 bos w/2-7/8 bas.Grap.& mcpo: 2.75
5-3/4 od x 4-3/4 id serial # w 2435 5-3/4 bos extension 3.10
FN .85 x 4-3/4 x 2-3/8 id serial # w 8925 3-1/2 if top sub x 5-3/4 os 1.10
4-3/4 od x 2 id serial # B 1461 4-3/4 bbj x 3-1/2 if conn. 9.90
4-3/4 x 3-1/8 id serial # B 124 4-3/4 boj x 3-1/2 if conn. 10.75
4-3/4 x 2-3/8 id rig Six x 4-3/4 drill collars x 3-1/2 if conn. 184.90
4-5/8 x 2-7/16 id serial # w 222 2-7/8 x 8rd. box x 3-1/2 if pin sub 1.50
8-3-2000 55
BHA 214.00
rig 180 joints 2-7/8 x 8rd tubing 5625.00
5839.00
Down on single 11.00
TOF 5950.00

56. Oilfield abbreviations
R.P.M. - rounds per minute T.O.F. - top of fish
S.P.M. - strokes per minute M.D. - measured depth
W.O.B. - weight on bit T.V.D. - true vertical depth
B.H.A. - bottom hole assembly B.F. - buoyancy factor
W.O.C. - wait on cement D.P. - drill pipe
W.O.O. - wait on orders D.C. - drill collar
W.O.W. - wait on weather D.h - diameter of hole in inches
T.I.H. - trip in hole e - stretch in inches
P.O.H. - pull out hole P - over pull in pounds
G.L.M. - gallons per minute E.S.P. - estimated stuck point
A - annular velocity M.O.P. - margin of over pull
E.C.D. - equivalent circulation density N.P. - neutral point
F.V. - funnel viscosity O.P.T. - optimum
C.&C. - circulate and condition mud M.W. - mud weight in ppg
H.H.P. - hydraulic horsepower Lbs. - pounds
L.C. - loss circulation Len. - length in feet
L.C.D. - loss circulation material L.O.T. - leak off test
Y.P. - yield point B.O.P. - blow out preventor
W.L. - water loss S.L.M. - steel line measurement or strap in/out hole
8-3-2000 56

57. 8-3-2000 57

58. Days Qty. Tool Description & Report Serial # Est. Price
1 1 8-3/8 SOD x 7-1/4 SID Scallop R.Shoe 2965 $ 2010.00
1 14 Jts. 8-1/8 o.d. wash-pipe ( 434¢ ) Pearland $ 985.00
1 1 4-1/2 if x 8-1/8 wp pin canfield bushing 21047 $ 390.00
1 1 6-1/4 od Bowen Fishing Jar x 4-1/2 if 9202071 $ 1450.00
1 1 8-1/8 wash pipe slips 96777 $ 275.00
Days Qty. Tool Description & Report Serial # Est. Price
T.I.H. Tagged top of fish @ 6572. Got over
T.O.F. and slacked off to the cement @ 6656.
Started milling over fish @ noon. Milled over
fish 12 hours from 6656 to 6710. Mill quite.
New Page for 03-16-99
Circulate hole clean and start P.O.H. @ 2.00
A.M.
Sub
Total
Previous
Total
8-3-2000 58
$6402
$2895
$9297
Example Job Report

59. Actual Job Resume
Pick up shoe #1, 15 joints washpipe,
W.O.B.O. tool, x-o, Jar, x-o and 9 D.C.’s.
O.D. of shoe? Safety joint and x-o sub on bottom
of W.O.B.O. tool?
O.D. and footage of washpipe?
Connection on x-o subs?
O.D. and type of jar? O.D. of D.C.’s?
Handling tools? Nubbins, elevators, WP slips, safety
clamp, lift sub for jars, bleeder plug for drill pipe?
8-3-2000 59

60. Example Resume
6-1/8² rough OD x 4.4² SID rotary shoe #1 S.N. xxx $1500
15 joints[450¢] of 5² x-line washpipe 2500
5-3/8² OD W.O.B.O. tool with 5² x-line pin &
2-7/8² IF box and pi n connections. [per back-off] 1600
4-1/4² OD pin type safety joint with 2-7/8² IF conn.
350
2-7/8² IF box x 3-1/2² PH-6 pin sub 50
3-1/2² IF box x 2-7/8² IF pin sub 60
3-1/2² IF x 4-3/4² OD Bowen Oil Jars first day 1200
Nine 4-3/4² OD drill collars [ NC ]
Washpipe nubbins [ five ] 90
Washpipe elevators 150
Washpipe slips 150
Washpipe safety clamp 110
Bleeder plug for drill pipe 200
8-3-2000 60
Daily Cost Est. $7960.00

61. 8-3-2000 61

62. Drilling is impeded by junk in the hole
Junk will fit in
standard junk
basket?
No
Run Poor Boy Junk basket, Magnet
or Junk Mill
Yes
Run magnet Hard Formation
or jet basket
Jet Basket Magnet
Run magnet
Run jet basket w/no float to 30 ft.
above junk. Establish parameters
Wash down to top of junk while
circulating volume of DP.
Drop ball and circulate down. Once ball
has seated, circulate at maximum
pressure and work basket down to TD.
It is not necessary to cut core
TIH to 30 ft. above junk.
Establish parameters
Wash down to junk while
slowly rotating
Stop pumps and lower magnet
to bottom then POOH.
POOH
w/recovery
No
Yes
Run junk
milling
assembly
8-3-2000 Job complete
62
POOH
w/recovery
Run jet basket
(no float)
Soft Run Globe,
RCJB or jet
basket
Jet Basket
RCJB
Run RCJB w/no float to 30 ft. above
junk. Establish parameters.
Run Globe Basket with
or w/out float.
Wash down to top of junk while
circulating volume of DP.
TIH to 30 ft. above top of
junk and establish
parameters
Dropball and circulate down. Once ball has been
seated, circulate at maximum pressure and work basket
down to TD. Cut core equal to head and barrel
While rotating lower
basket down to junk and
cut core equal to barrel
capacity
Yes
POOH
W/Recovery
?
No
Run junk
milling
assembly
Yes
POOH
w/recovery
Yes
Yes
Job complete

63. Information/ Short Term Needs
• Sales people are great help in recognizing an
opportunity[ planned work] and collecting
the right information
• This information with the help of a “go to
guy” can increases business dramatically
• Can push for a standby tool basket to cover
short term needs
8-3-2000 63

64. Standby Basket / Immediate Needs
• Magnet to suit bit cone and holes sizes
• Mill and boot basket to suit hole sizes
• Reverse circulating or globe type junk basket
• Basic overshot with grapples to catch work
string, collars, fishing neck on all down
hole tools
8-3-2000 64

65. Junk in the Hole
• What is the junk? size, weight, condition?
• Is it magnetic?
• Will junk fit into standard junk basket?
• Is the junk millable?
• The choices are to pick it up or mill it up.
• May require a combination of tool runs.
Movie File (MPEG)
8-3-2000 65

66. Fishing Magnets
• All small objects with magnetic attraction
• Run on pipe; capability/rotate/ circulate
• Must wash fish; surface/ magnetic pole
• Run boot basket above for small junk
• Most, but not all tungsten carbide bit inserts
are non-magnetic
8-3-2000 66

67. FISHING
MAGNET
8-3-2000 67

68. Weatherford Type P Boot Basket
Complete Recommended Connection Maximum Bore Overall
Assembly Hole Sleeve Length
Number Size O.D. (in.) (in.)
471-000-4 4-1/8 x 4-1/2 2-3/8 Reg. 3 11/16 1 32
471-140 4 - 5/8 x 4- 7/8 2-7/8 Reg. 4 1 32-1/2
471-140 5 x 5-3/4 2-7/8 Reg. 4 1/2 1 32-1/2
471-145 5-7/8 x 6-3/8 3-1/2 Reg. 5 1 1/2 32-1/2
471-145 6-1/2 x 7-3/8 3-1/2 Reg. 5 1/2 1 1/2 32-1/2
471-150 7-1/2 x 8-1/8 4-1/2 Reg. 6 5/8 2 34
471-150 8-5/8 x 9-5/8 4-1/2 Reg. 7 2 34
471-160 9-5/8 x 11-3/8 6-5/8 Reg. 8 1/2 3 36
471-160 11-1/2 x 13 6-1/2 Reg 9 5/8 3 36
8-3-2000 68

69. Boot Basket
8-3-2000 69

70. Fishing Magnets
• Adapters available to run on wireline
• Usually inside casing with clear fluid
• Prior to running, check charge, sledge hammer
• Will hold hammer, will hold junk
• OD magnet; 1/4² to 1² less/ hole size
8-3-2000 70

71. Procedure run Magnet
• TIH Stop approximately 30¢ from bottom
• Circulate and ream to bottom/ circulate all fill
off fish
• Slack off a little while rotating a few rounds
• Don’t rotate excessively
• A magnet is not a drilling tool
8-3-2000 71

72. Operating Procedure
• Rotary will slap as guide rakes fish/ face
• Cut Lip/ cripple type guide best suited
• Set 2,000# to 3,000# weight on magnet
• Stop circulation, POH don’t rotate
• Guide prevent fish rubbing off while POH
8-3-2000 72

73. Bowen Itco Type Junk Basket
• Soft to medium formation
• Top sub,barrel, carbide shoe
• Two free rotating catchers
• Mill O D 1/4” less hole size
• Carbide I D same as catchers
8-3-2000 73

74. Operation:Core Basket
• Ream last 30’ to bottom
• Slow pump rate & RPM
• Watch torque as junk rolls in
• Increase weight 2- 4,000 Lbs.
• Cut core: stop circulation/ rotary
• Pick up to break core
8-3-2000 74

75. Core Type Basket
• If no junk recovery is made, but a good core
is recovered, normal drilling may be
resumed.
• Because it cannot produce any reverse
circulating , the globe type basket is used
primarily in open hole.
8-3-2000 75

76. 8-3-2000 76

77. Reverse Circulating
Junk Basket
• Circulate capacity of string
• Check ID’s/ insure ball will pass
• Drop ball: shear pins: reverse
• Not necessary to cut core
• Hyd. power deflects junk/barrel
• Preferred tool for hard formation
8-3-2000 77

78. Weatherford Venturi Jet Basket
The tool consists of a :
• top sub
• a jetting assembly
• a barrel
• assembly with finger catchers
• a rotary shoe
8-3-2000 78

79. The Jetting Assembly
The jetting assembly is contained in the top sub
and consists of :
• an ejector pump head
• four jets
• a flushing nozzle
• a valve seat
8-3-2000 79

80. Jetting Function Operation
•The action of actuating the valve and pumping
mud through the jets produces a vacuum,
sucking mud from the inside of the barrel
• Mud deficiency in the barrel will be replenished
by mud entering from below, carrying any junk
which will be trapped above the finger catchers
8-3-2000 80

81. Actual Fish Recovered
The following pictures are of a Motor Base Plug
from a Submersible Pump picked up with a 7-
7/8² OD Venturi Jet Basket in one trip.
The plug dimensions were 5-3/8² OD x 13² long
and weighed 50 lbs.
The second trip picked up small pieces of junk.
8-3-2000 81

82. 8-3-2000 82

83. 8-3-2000 83

84. 8-3-2000 84

85. 8-3-2000 85

86. 8-3-2000 86

87. Cone Dimensions
• Know your dimensions
• 7-7/8” bit cone = 5-17/64” OD
• Bowen Itco Type Junk Basket: 7-1/8”OD
barrel x 5-28/64”ID
• Weatherford type H Junk Basket:
• 7-1/2” OD barrel x 5-40/64 ID
8-3-2000 87

88. 8-3-2000 88

89. 8-3-2000 89

90. Junk Shot
• Shaped charge to break up junk into smaller
pieces so it is fishable
• Circulate fill off junk
• Tag fish and fire shot
• Run in open hole only
8-3-2000 90

91. POOR BOY
BASKET
8-3-2000 91

92. Poor Boy Baskets
• Fish is too large for conventional baskets
• Should be 1/2² smaller than hole ID
• Dressed with finger type bottom
• Fingers bend in: catches junk
• Lead, rubber, chain or wrench
8-3-2000 92

93. Poor Boy Baskets
• Carbide,wire, dimple rings, rods
• Relies on friction
• Mild steel for bending
• Custom made for a particular job
• Usually one of a kind, used only once
8-3-2000 93

94. Peen Shoe
• Burned over packer
• Perforation gun
• Shepherds hook
• Drill pipe rubbers
8-3-2000 94

95. 8-3-2000 95

96. Wire Catcher
• Hammer
• Lead
• Rubber
• Chain
• 24” pipe wrench
8-3-2000 96

97. Spring Tine
• Small OD sub or mill
• Perforating gun
• Shepherd’s hook
8-3-2000 97

98. 8-3-2000 98

99. 8-3-2000 99

100. Spring Tine Basket
Given:Milling on junk inside 2.992 ID
• 2-7/8 O D mill twisted off at box leaving
fishing neck of 2-1/4 OD x .75 long
• Successfully recovered fish with 2-7/8² OD
spring tine shoe
8-3-2000 100

101. Available Overshots
• Series 150 x 2-7/8” OD ; Max. catch = 2-1/8
• Series 70 short catch to catch 2-1/4 is 3-5/8
• Series 10 slim hole x 2-13/16 with maximum
catch of 2.330 was unavailable
• Series 20 short catch x 2-7/8” o.d.: Max. catch =
2-5/16 was unavailable
8-3-2000 101

102. Match Tool With Junk to be Fished
Junk
Fishing Tool
1. Drill Bit Cone
2. 24” pipe wrench
3. Tong Dies
4. Drill Bit
5. Chain
6. Hammer
7. Wire Rope
8. Rubber
9. Lead
10. Shepherd’s hook
A. Magnet
B. Mill
C. Boot basket
D. Core Type basket
E. Reverse Circ.
F. “Po-Boy” basket
G. Ping Shoe
H. Wire Catcher
I. Spring Tine basket
J. Rope spear
K. Impression block
L. Wash pipe
M. Rope spear 2 prong
N. Taper Tap
8-3-2000 102

103. Match Tool / Junk
Drill Bit Cone - A,D,E
Magnet if only one cone, Reverse basket or po-boy basket if more
than one cone.
24² pipe wrench - D,E,F,H
Core type basket, reverse circulating basket, po-boy basket, wire
catcher basket
Tong dies - A,D,E,F,H
Magnet, core type basket, reverse circulating basket, po-boy
basket, wire catcher basket
Drill Bit K,N
Chain - A,D,E,F,H
8-3-2000 103

104. Match Tool/Junk
Hammer - A,D,E,F,G,H
Magnet, core type basket, reverse circulating basket, po-boy
basket, wire catcher basket
Wire Rope - J
Rubber - D,E,F,H
Core type basket, reverse circulating basket, po-boy basket, wire
catcher basket
Lead - D,E,F,H
Shepherd’s Hook - G,H,I
Ping shoe, wire catcher basket, spring tine basket
Perforating Gun - G,H,I
8-3-2000 104

105. Junk Mills
Flat Bottom Bladed
8-3-2000 105

106. Mills
• Surest: more time consuming
• Run with boot basket
• Can spud lightly: break up junk
• Run 1/4” less than bit size
• Smooth OD, stabilizer pads/casing
8-3-2000 106

107. 8-3-2000 107

108. Mills
• Insert type best for pipe anchored
• Chatter and vibration are detrimental
• Use shock sub to cut down on vibration
• Carbide performs well in all conditions
• Neither performs well in abrasive formations
8-3-2000 108

109. Milling Rates:Surface Feet per Minute
Crushed carbide mills = 150 to 200 S.F.P.M.
Carbide insert mills = 150 to 300 S.F.P.M.
Surface Feet Per Minute = Mill Diameter X R.P.M. X .262
Example: Mill Dia. = 7”, RPM = 120, What is the SFPM ?
7” Mill X 180 RPM X .262 = 330 SFPM
R.P.M. = SFPM Dia. Mill X 3.82
Example: 330 SFPM 7” Mill X 3.82 = 180 RPM.
8-3-2000 109
Microsoft Excel
Worksheet

110. Conclusions
The two ways to deal with junk in the hole are ….
Magnets are run of pipe because ….
A boot basket is loaded by….
The globe type junk basket is recommended in….
The reverse type junk basket is used in ….
If a core is recovered, but no junk, then ….
When recovery methods fail, it’s time to run ….
8-3-2000 110

111. 8-3-2000 111

112. Backoff Jet Cut Chemical Cut
8-3-2000 112

113. Ways to Part Pipe
• Blind back-off
• Controlled back-off (string shot)
• Chemical cutter
• Jet cutter
• Severing tool
• Mechanical cutters
8-3-2000 113

114. Stretch Formula
Any coupled Pipe
K = 1.4 ÷ weight of pipe per foot
Integral Joint tubing or drill pipe
K = 1.5 ÷ weight of pipe per foot
1,000,000 x inches in stretch
K x pounds of over pull
=Free Pipe
8-3-2000 114

115. Example
Packer set at 8,000¢ w/2-3/8² N80 tubing
String weight of 37,600; Mark pull @ 57,600
20,000# over pull; had 48² of stretch
1.4 ÷ 4.7 = .2978 (K)
1,000,000 x 48² = 48,000,000 = 8,059 free
.2978 x 20,000
5956
Conclusion? Stuck at Packer
8-3-2000 115

116. Calculations for Free Point in Stuck Drill Pipe
Single or Tapered Strings
Enter the Information in the Red cells below, an estimated free point will be calculated
Stretch in inches 41 Measure Stretch in Inches
Overpull in Pounds 40,000 the Following Overpull(s)
Length of Larger Drill Pipe 10,000
Length of Smaller Drill Pipe 2,200 2-7/8" DP 25,000.00
Plain-end weight of Larger Drill Pipe 17.93 3-1/2" DP 30,000.00
Plain-end weight of Smaller Drill Pipe 12.31 4-1/2" DP 35,000.00
Weight per/ft w / tool jt. on single string Drill Pipe 19.5 5" DP 40,000.00
EFP = Estimated Free Point EFP
Method #1 single string of drill pipe 13,325 Use the following Weights
For Drill Pipe
EFP Plain End W / Tool Jt.
Method #2 single string of drill pipe 13,513 2-7/8" DP 9.72 10.40
3-1/2" DP 12.31 13.30
EFP 3-1/2" DP 14.63 15.50
Method #3 Tapered String Larger / Smaller Drill Pipe 12,412 4" DP 12.93 14.00
4" DP 14.69 15.70
4-1/2" DP 14.96 16.60
Note: If Stuck point is Less than the length of Larger Drill Pipe 4-1/2" DP 18.69 20.00
use the answer from Method #1 or #2 5" DP 17.93 19.50
Microsoft Excel
Worksheet
8-3-2000 116

117. Pull weight (above string weight) to obtain 3 - 1/2” of stretch per 1,000 ft of free pipe
Pipe Size (in.) LBS/Ft Required Pull (lbs.)
1 Tubing 2.25 5,000
1 - 1/4 Tubing 2.40 5,500
1 - 1/2 Tubing 2.90 6,500
2 - 1/16 Tubing 3.40 7,500
2 - 3/8 Tubing 4.70 10,000
2 7/8 Tubing 6.50 14,000
3 1/2 Tubing 9.30 20,000
3 1/2 Tubing 12.95 28,000
4 Tubing 13.40 29,000
4 - 1/2 Tubing 12.75 28,000
4 - 1/2 Tubing 15.50 34,000
2 - 7/8 Drill Pipe 10.40 23,000
3 - 1/2 Drill Pipe 13.30 30,000
4 - 1/2 Drill Pipe 16.60 36,000
5 Drill Pipe 19.50 43,000 Wts. not shown: Pull Force = 2208.5 x lbs./ft
5 Casing 15.00 33,000 General Rule in deviated holes:
5 - 1/2 Casing 17.00 36,000 Cased hole - add 400 lbs./degree
6 - 5/8 Casing 24.00 53,000 Open hole - add 700 lbs./degree
7 Casing 35.00 77,000
7 - 5/8 Casing 29.70 66,000
8 - 5/8 Casing 40.00 88,000
9 - 5/8 Casing 43.50 96,000
10 - 3/4 Casing 45.50 100,000
8-3-2000 117

118. Blind back-off
Blind back-off operations are dangerous and
should only be attempted as a last resort.
1. First, tighten the string to the right
2. Determine the weight of pipe to be backed off
3. Mark the pipe with this weight on indicator
4. Work torque to the left without slacking
off below the neutral weight until pipe breaks
8-3-2000 118

119. Torque Required
Free Point Tighten Back-Off
• Tbg. 1/2 to1 1to11/2 3/4 to 11/4
• D.P. 1/2 3/4 to 1 1/2 to 3/4
• Csg.1/8 to1/4 1/4 to 1/2 1/8 to 1/4
8-3-2000 119

120. Shot Chart Example
Grains Per Foot
Mud 5000 10000 15000
4-1/2 10 200 300 350
14 300 350 400
18 300 350 400
8-3-2000 120

121. 8-3-2000 121
Cable
CHoellaadr Locator
Sinker Bars
(Weights)
Slip
Joint
Oscillator
(12”or
24”)
Upper Bow
Spring Assembly
(1” to 10”)
Stresstector™
Lower Bow
Spring Assembly
Free Point Tool
· AAnn eelleeccttrroonniicc ssttrraaiinn gguuaaggee rruunn
oonn aa ssiinnggllee ccoonndduuccttoorr ccaabbllee
uusseedd ttoo mmeeaassuurree ttoorrqquuee oorr
ssttrreettcchh iinn aa ssttrriinngg ooff ssttuucckk ppiippee..
· TToooollss aarree aanncchhoorreedd ttoo tthhee ppiippee
II..DD.. aatt ttwwoo ffiixxeedd ppooiinnttss bbyy eeiitthheerr
bbooww sspprriinnggss,, ddooggss oorr mmaaggnneettss..

122. Avoid pulling pipe into the
wall/ free point with torque
Pipe sticking here while
free pointing with
stretch, appears jars not
working below
Fishing Jars
Bumper Sub
Stuck Point
8-3-2000 122

123. String Shot Backoff
AA SSttrriinngg SShhoott iiss tthhee pprriimmaaccoorrdd aanndd
bbllaassttiinngg ccaapp uusseedd ttoo ppaarrtt aa ssttrriinngg ooff ppiippee..
AA ssttrriinngg sshhoott BBaacckkooffff iiss tthhee uunnssccrreewwiinngg ooff
aa ttooooll jjooiinntt oorr ccoouupplliinngg wwiitthh eexxpplloossiivveess aatt
aa pprreeddeetteerrmmiinneedd ddeepptthh..
8-3-2000 123

124. Advantages of String Shot
• Can run in combination with free point tool
• Can run through smaller ID than cutters
• The shot should not damage the connection,
however lay shot joints down for inspection.
8-3-2000 124

125. Other Uses S.Shot
• Outside back off
• Jar shot to free test plug out of well head
• Knock nozzles out of bit
• Knock plastic or corrosion off ID of pipe
8-3-2000 125

126. Five Requirements for a Back Off
• Free - Connection must be free
• Torque - Correct left hand torque is needed
• Weight - Must be at neutral weight
• Shot - Proper size shot is required
• Across Tool Joint - The shot must be across
the tool joint when fired
8-3-2000 126

127. Where to Back- 0ff?
Do you intend to fish the well?
No - As deep as you can
Yes - At least one joint above stuck point
Two joints above a key seat
100 feet below a casing seat
Not immediately below a dog leg or a
drop of angle
8-3-2000 127

128. Where to Back - Off ?
8-3-2000 128

129. Pipe Recovery Log
• Along with the free point, a pipe recovery log is
usually required to determine the best fishing
procedure.
• The pipe recovery log utilizes a sonic system
which sets up a vibration in the stuck pipe.
8-3-2000 129

130. Pipe Recovery Log
• The vibration, measured by a receiver,
decreases at stuck intervals in proportion
to the severity of the stuck condition.
• The logging instrument is calibrated in known
free pipe, normally near the bottom of
the last casing string.
8-3-2000 130

131. Pipe Recovery Log
• After recording, a signal attenuation scale is
placed on the log.
• This scale, expressed in percentages,
accurately indicates the severity of stuck
conditions at each interval.
8-3-2000 131

132. Pup Joints
• Use Pup Joints when doing wireline work
• Figure top fish/ space out/pup joints
• Easier working at rotary/ 20¢ in air
• Saves operator time and money
• Promotes safe work environment
8-3-2000 132

133. Chemical Cutter
AAddvvaannttaaggeess
FFllaarree FFrreeee FFiisshh
LLeeaavveess NNoo DDeebbrriiss
WWiillll nnoott ddaammaaggee aaddjjaacceenntt
ssttrriinngg
DDiissaaddvvaannttaaggeess
HHeeaavvyy mmuudd//pprroobblleemmss
LLiimmiittaattiioonnss oonn ddeepptthh
SSlliippss ccaann ppuunncchh tthhrroouugghh
ccoorrrrooddeedd ttuubbiinngg
8-3-2000 133

134. 8-3-2000 134

135. Chemical Cutter
• Preferred method for tubing
• Must have fluid in hole
• Fluid prevents tool from jumping up the
hole
• Fire with 10,000 up strain
• 85% success rate Movie File (MPEG)
8-3-2000 135

136. Jet Cutters
SSiizzeess aavvaaiillaabbllee ffrroomm 11--55//3322”” ttoo 1122””
OODD ttoo CCuutt 11..666600”” ttoo 1133--33//88”” ccaassiinngg
JJeett ccuutttteerr wwoorrkkss oonn tthhee sshhaappeedd
cchhaarrggee pprriinncciippllee
UUsseedd ttoo ccuutt ccoorrrrooddeedd ttuubbiinngg
CCuutttteerr wwiillll lleeaavvee aa sslliigghhttllyy ffllaarreedd ffiisshh
8-3-2000 136

137. Super Jet Cutter
WWoorrkkss oonn ssaammee sshhaappeedd
cchhaarrggee pprriinncciippaall uussiinngg mmoorree
eexxpplloossiivveess
CCuuttttiinngg ddeeeeppeerr aanndd uunnddeerr
hhiigghheerr hhyyddrroossttaattiicc
WWiillll ddaammaaggee ccaassiinngg,, uusseedd
mmoossttllyy ffoorr PP.. aanndd AA..
8-3-2000 137

138. Severing Tool
•• 22--55//88 OO DD ttooooll wwiillll sseevveerr uupp ttoo
1111²OODD ddrriillll ccoollllaarrss
•• UUsseedd iinn ooppeenn hhoollee oonnllyy
•• SSiizzeess aavvaaiillaabbllee 11--33//88””ttoo22--55//88””
8-3-2000 138

139. Severing Tool
UUsseedd mmoossttllyy aass aa ssiiddeettrraacckk
ttooooll dduuee ttoo bbaadd ffllaarriinngg
aanndd sspplliittttiinngg wwhhiicchh
mmaakkeess ffiisshhiinngg ddiiffffiiccuulltt..
FFiirree iinn tthhee ttooooll jjooiinntt,, iitt wwiillll
oonnllyy ffllaarree tthhee ttuubbee aarreeaa..
HHoolldd ssttrraaiinn uupp wwhhiillee ffiirriinngg
8-3-2000 139

140. Mechanical Internal Cutter
Cost Effective:
· Shallow cuts
· Large O.D. tubulars
· Cut/retrieve in single trip
· Well conditions too adverse for W.L.
8-3-2000 140

141. 8-3-2000 141