- •Introduction to the Anchor Handling Course
- •Technical Specifications:
- •Winch Layout:
- •Power Settings / Bollard Pull
- •All operations on board must be performed in accordance with Company Procedures.
- •Risk Assessment
- •Planning
- •Planning:
- •Goal, example:
- •What to do:
- •Electrical winches
- •Winch operation
- •General Arrangement
- •A/H-Drum at full Capacity
- •Over speed
- •Water brake
- •Band brake
- •QUICK & Full Release
- •Hydraulic Winches
- •Lay out (B-type)
- •Hydraulic winch, “B-type”
- •TOWCON
- •Instruction for use of Wire Drums
- •Changing of Chain Wheels (Wildcats / Chain Lifter)
- •TRIPLEX - SHARK JAW SYSTEM.
- •Operation
- •Maintenance and inspections
- •Safety
- •2. OPERATION:
- •QUICK RELEASE:
- •EMERGENCY RELEASE:
- •CONTROL PANEL
- •Marks for Locked on Hinge Link
- •2.2- OPERATION OF THE "JAW IN POSITION ACCEPT" LEVER:
- •2.3 OPERATION OF THE CONTROL PANEL AT EMERGENCY POWER.
- •3. ELECTRIC AND HYDRAULIC POWER SYSTEM.
- •3. 1. ARRANGEMENT OF SYSTEM.
- •3.2. FUNCTIONING OF QUICK RELEASE - JAWS ONLY.
- •3.3. FUNCTIONING OF EMERGENCY RELEASE
- •4.2 Test without Load.
- •4.3 Test with Load.
- •5. General Maintenance
- •5.1 Accumulators Depressurising
- •5.2 Shark Jaw Unit
- •5.3 Guide Pins Units
- •5.4 Hydraulic System
- •5.5 Electric System
- •6. Control Measurements / Adjustments.
- •6.2 Adjustment of inductive proximity switches on lock cylinders.
- •6.3 Adjustment of Pressure Switches for Lock Pressure.
- •7. Test Program – Periodical Control
- •7.2 Checking List – Periodic Control Mechanical / Hydraulic.
- •7.3 Checking List – Periodic Control Electrical
- •7.4 Testing without Load – Yearly Testing.
- •7.5 Load Test – Emergency Release – 5 Year Control.
- •“Mark on line !”
- •“Double set of Jaws, Pins and Wire lifter”
- •View from the bridge.
- •“JAW READY FOR OPERATION”
- •“JAW LOCK POSITION ACCEPTED”
- •KARM FORK – SHARK JAW SYSTEM.
- •Wire and chain Stopper
- •Inserts for KARM FORK
- •Martensite:
- •Recommendations:
- •1. THE BASIC ELEMENTS OF STEEL WIRE ROPE
- •2. STEEL WIRE ROPE CONSTRUCTIONS
- •3. SPECIAL STEEL WIRE ROPES
- •4. USE OF STEEL WIRE ROPE
- •5. SELECTING THE RIGHT STEEL WIRE ROPE
- •6. ORDERING STEEL WIRE ROPE
- •7. STEEL WIRE ROPE TOLERANCES
- •8. HANDLING, INSPECTION AND INSTALLATION
- •9. INSPECTION AND MAINTENANCE
- •10. ELONGATION AND PRE-STRETCHING
- •11. OPERATING TEMPERATURES
- •12. MARTENSITE FORMATION
- •13. END TERMINATIONS
- •14. SOCKETING (WIRELOCK)
- •15. DRUM CAPACITY
- •16. CLASSIFICATION AND USE OF STEEL WIRE ROPE
- •17. ROPES
- •18. CHAINS AND LIFTING COMPONENTS
- •19. TECHNICAL CONVERSION TABLES
- •SWIVEL
- •MoorLink Swivel
- •Pin Extractor
- •Socket Bench
- •Chains and Fittings
- •STUD LINK MOORING CHAIN
- •OPEN LINK MOORING CHAIN
- •KENTER JOINING LINKS
- •PEAR SHAPE ANCHOR CONNECTING LINK
- •DETACHABLE CONNECTING LINK
- •D’ TYPE JOINING SHACKLES
- •‘D’ TYPE ANCHOR SHACKLES
- •SHACKLES
- •JAW & JAW SWIVELS
- •BOW & EYE SWIVELS
- •MOORING RINGS
- •FISH PLATES
- •PELICAN HOOKS
- •SLIP HOOKS
- •‘J’ CHASERS
- •PERMANENT CHASERS
- •DETACHABLE PERMANENT CHAIN CHASERS
- •PERMANENT WIRE CHASERS
- •‘J’ LOCK CHAIN CHASERS
- •The way to break the anchor loose of the bottom is therefore:
- •Table of contents
- •Introduction
- •General
- •Mooring systems
- •Mooring components
- •History of drag embedment anchors
- •Characteristics of anchor types
- •History of vryhof anchor designs
- •Criteria for anchor holding capacity
- •Theory
- •Criteria for good anchor design
- •Aspects of soil mechanics in anchor design
- •Soil classification
- •Fluke/shank angle
- •Fluke area
- •Strength of an anchor design
- •Anchor loads and safety factors
- •Anchor behaviour in the soil
- •Proof loads for high holding power anchors
- •Anchor tests
- •Soil table
- •Practice
- •Introduction
- •Soil survey
- •Pile or anchor
- •Setting the fluke/shank angle
- •Connecting a swivel to the Stevpris anchor
- •Chasers
- •Chaser types
- •Stevpris installation
- •Laying anchors
- •Retrieving anchors
- •Anchor orientation
- •Decking the Stevpris anchor
- •What not to do!
- •Racking the Stevpris
- •Deploying Stevpris from the anchor rack
- •Boarding the anchor in deep water
- •Ballast In fluke
- •Chaser equilibrium
- •Deployment for permanent moorings
- •Piggy-backing
- •Piggy-back methods
- •Stevmanta VLA installation
- •Installation procedure
- •Stevmanta retrieval
- •Double line installation procedure
- •Stevmanta retrieval
- •Double line installation with Stevtensioner
- •The Stevtensioner
- •The working principle of the tensioner
- •Measurement of the tensions applied
- •Umbilical cable and measuring pin
- •Break - link
- •Duration of pretensioning anchors and piles
- •Handling the Stevtensioner
- •General tensioning procedures
- •Hook-up
- •Lowering
- •Tensioning mode
- •Retrieving
- •Supply vessels/anchor handling vessels
- •Product data
- •Introduction
- •Dimensions of vryhof anchor types
- •Proof load test for HHP anchors (US units)
- •Dimensions of vryhof tensioners
- •Proof load/break load of chains (in US units)
- •Chain components and forerunners
- •Connecting links
- •Conversion table
- •Mooring line catenary
- •Mooring line holding capacity
- •Shackles
- •Wire Rope
- •Wire rope sockets
- •Thimbles
- •Synthetic ropes
- •Mooring hawsers
- •Main dimensions chasers
- •Stevin Mk3 UHC chart
- •Stevin Mk3 drag and penetration chart
- •Stevpris Mk5 UHC chart
- •Stevpris Mk5 drag and penetration chart
- •Stevmanta VLA UPC chart
- •Introduction
- •Propulsion system
- •Propellers
- •Thrusters
- •Rudders
- •Manoeuvring
- •Current
- •Wind
- •Other forces
- •Turning point (Pivot point)
- •Ship handling
- •General layout Jack-Up drilling unit:
- •General information about a Semi Submersible drilling unit:
CHAINS & FITTINGS
PELICAN HOOKS
C
D
E A
B
Chain
Pelican Hook
Deck Padeye
TYPICAL APPLICATION
Chain Size |
A |
B |
C |
D |
E |
S.W.L. |
Weight |
mm |
mm |
mm |
mm |
mm |
mm |
Tonnes |
kg |
|
|
|
|
|
|
|
|
25-28 |
90 |
35 |
38 |
30 |
358 |
10 |
24 |
32 |
100 |
40 |
45 |
35 |
390 |
15 |
35 |
34-42 |
110 |
45 |
55 |
42 |
430 |
25 |
50 |
44-48 |
120 |
50 |
60 |
50 |
475 |
35 |
70 |
51-58 |
135 |
60 |
75 |
60 |
525 |
50 |
98 |
60-64 |
150 |
70 |
86 |
70 |
600 |
60 |
150 |
67-70 |
170 |
80 |
90 |
80 |
705 |
75 |
230 |
76-83 |
200 |
100 |
105 |
100 |
880 |
100 |
430 |
2.20
CHAINS & FITTINGS
SLIP HOOKS
Size |
Weight |
|
|
|
mm |
kg |
|
|
|
|
|
|
|
|
19 |
4.3 |
|
|
|
22 |
6.6 |
|
|
|
25 |
10 |
|
|
|
29 |
14 |
|
|
|
32 |
19 |
|
|
|
35 |
27 |
|
|
|
38 |
34 |
|
|
|
41 |
44 |
|
|
|
44 |
55 |
|
|
|
48 |
66 |
|
|
|
51 |
82 |
|
|
|
54 |
98 |
|
|
|
57 |
115 |
|
|
|
60 |
137 |
|
|
13d |
64 |
159 |
|
|
|
|
|
0.6d |
||
67 |
183 |
|
|
1.3d |
70 |
208 |
|
|
|
73 |
241 |
|
|
2.5d |
76 |
272 |
|
|
|
|
|
|
||
79 |
312 |
|
6.7d |
|
83 |
348 |
|
1.3d 4.4d |
|
|
|
|||
86 |
394 |
|
|
|
89 |
437 |
|
|
|
92 |
483 |
|
1.3d |
|
95 |
532 |
|
|
|
|
4d |
10.4d |
||
98 |
593 |
|
||
102 |
649 |
|
|
|
2.21
CHASERS & GRAPNELS
‘J’ CHASERS
BEL 101 ’J’ CHAIN CHASER
Safe Working Load:
Proof Test Load:
Weight:
4.88 |
|
124 |
ø3.38 |
|
|
.50 |
|
27 |
|
699 |
|
100 Tonnes
250 Tonnes
1882 Kg
86
96.00 |
2438 |
72.00 |
|
1829 |
12.00 |
|
305 |
CHAIN CHASERS
Chain chasers were developed to overcome the problems of recovering rig anchors when anchor pendant lines failed in service. The operational sequence of chasing is shown below.
Stage 1 |
Stage 2 |
Stage 3 |
Wire Rope from
Anchor Handling
Vessel
Anchor
Chain
Chaser
Mooring Chain
3.2
CHASERS & GRAPNELS
BEL 109 GRAPNEL
Safe Working Load: |
100 Tonnes |
Proof Test Load: |
150 Tonnes |
Weight: |
1351 Kg |
70.00 |
1778 |
ø3.38 |
86 |
|
4.50 |
114
4.00
102
3.00
76
54.00
1372
GRAPNELS
The grapnel was designed as a “fishing” tool primarily for the purpose of recovering an anchor and chain which has become detached and has fallen to the sea bed. The operational sequence is as follows:
Stage 1 |
Stage 2 |
Recovery
Wire Rope
Broken |
Recovery |
|
|
Chain |
|
||
Wire Rope |
Broken |
||
|
|||
|
|
||
|
|
Chain |
3.3
CHASERS & GRAPNELS
GRAPNELS
BEL 139 GRAPNEL |
|
Safe Working Load: |
250 Tonnes |
Proof Test Load: |
350 Tonnes |
Weight: |
2630 Kg |
78.5 |
1994 |
50.5 |
1283 |
|
|
8.5 |
216 |
66.00
1676
7.88 |
|
|
|
7.5 |
191 |
200 |
3.94 |
|
|
||
|
100 |
|
|
|
|
|
ø5.25 133 |
|
|
|
|
|
|
|
|
|
5.0 |
|
|
|
|
|
127 |
|
ø3.50 |
66.5 |
1689 |
|
|
|
89 |
|
|
|
|
|
|
|
1.5 |
3.94 |
|
|
|
|
100 |
|
|
|
Continuous Fillet Weld 38 |
|
|
3.4