LynxSA2 - Techpack

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LYNX SA2 GENERAL

INFORMATION PACKAGE

A 12/06/02 FINAL

1 04/02/02 DRAFT I PACE STAN RENNIE JOHN GALLAGHER

Rev Date Description Originated By Checked By Approved By

This document is for reference information only. When running connectors obtain specific up-to-date running procedures from Oil States Industries Offshore Running Department.


CONTENTS

1.0 INTRODUCTION..................................................................................................3

2.0 CONNECTOR DESCRIPTION ............................................................................4 2.1 Design Features:- ....................................................................................4 2.2 Make-up ...................................................................................................5 2.3 Visual Proof of Make-Up..........................................................................5 2.4 Anti-Rotation ............................................................................................5 2.5 Breakout ...................................................................................................5 2.6 Driveability................................................................................................5 2.7 Handling ...................................................................................................5 2.8 Protectors.................................................................................................5 2.9 Seals ........................................................................................................5

3.0 TECHNICAL SPECIFICAT ION............................................................................6

4.0 MAKE-UP & BREAK-OUT PROCEDURE..........................................................7 4.1 Preparation on Pipe Deck........................................................................7 4.2 Procedure For Fitting Lynx O-Ring Seal .................................................7 4.3 Make-Up Procedure When Anti-Rotation Blocks are not Fitted..............7 4.4 Make-Up Procedure When Anti-Rotation Blocks are fitted .....................8 4.5 Break Out Procedure .............................................................................13

5.0 TYPICAL OFFSHORE INSTALLATION PROCEDURE FOR RUNNING WEIGHT SET CONNECTORS..........................................................................15 5.1 Equipment Required ..............................................................................15 5.2 Preparation Before Installation ..............................................................15 5.3 Installation Procedure ............................................................................15

6.0 TESTING SUMMARY ........................................................................................20 6.1 Introduction ............................................................................................20 6.2 30" Lynx SA2 Connector Tests..............................................................20

FIGURE 1-1 THE LYNX SA2 CONNECTOR...............................................................3 FIGURE 4-1 O’ RING....................................................................................................9 FIGURE 4-2 LYNX SA2 MAKE-UP ............................................................................10 FIGURE 4-3 ANTI-ROTATION BOX FITTED TO BOX.............................................10 FIGURE 4-4 LYNX MAKE-UP PROCEDURE............................................................11 FIGURE 4-5 LOCKRING GAP ....................................................................................12 FIGURE 4-6 EXTERNAL VISUAL CHECK.................................................................13 FIGURE 4-7 BREAK OUT PROCEDURE...................................................................14 FIGURE 5-1 INSTALLATION SEQUENCE.................................................................17 FIGURE 5-2 INSTALLATION SEQUENCE.................................................................17 FIGURE 5-3 INSTALLATION SEQUENCE.................................................................17 FIGURE 5-4 INSTALLATION SEQUENCE.................................................................18 FIGURE 5-5 INSTALLATION SEQUENCE.................................................................18 FIGURE 5-6 INSTALLATION SEQUENCE.................................................................18 FIGURE 5-7 MAKE-UP LOSS.....................................................................................19


FIGURE 1-1 THE LYNX SA2 CONNECTOR

1.0 INTRODUCTION

The Lynx SA2 is a reusable mechanical connector with the option of an anti-rotation facility.

The Lynx SA2 connector comprises three components, pin, box and lockring. The pin and box/lockring are contoured to ensure easy stab-in characteristics. The make-up of the connector is achieved via the external split locking ring which is attached to the box member, although free to rotate, the ring moves radially outwards from within the box groove and snaps into box and pin grooves to make up the joint.

Rapid assembly is achieved by utilising the weight of the joint to weight set the connector.

Full Finite Element Analysis (FEA) and Fatigue Analysis have been conducted on this connector. Summaries of the results are available if further detailed information is required.

Lynx SA2 connectors have been sold worldwide and they are currently in use in semi-submersible, platform and jack-up applications. A full up to date users list can be provided on request.

A series of full-scale tests have been carried out on the Lynx SA2 connector.


2.0 CONNECTOR DESCRIPTION

2.1 Design Features:-

The Lynx SA2 connector Figure 2-1 has been designed to:

• Make-up without rotation.

• Assembly by weight setting.

• Provide visual proof of make-up.

• Be fully driveable.

• Provide high static strength performance.

Figure 2-1 GENERAL ASSEMBLY


2.2 Make-up

The connector can be made up in seconds by utilising the weight of the joint to set the connector. The connector does not require external tools for make-up.

2.3 Visual Proof of Make-Up

The external lock ring gap can be checked visually for proof of connector make-up. If partially made up the lock ring gap will be oversized and the locking shoulders will not align with the pin and box shoulders around the full circumference.

2.4 Anti-Rotation

Anti-rotation blocks can be fitted to allow the joint to transmit torque without relative rotation between pin and box.

2.5 Breakout

To breakout the joint, the lock ring is jacked out against the box component using four jacking bolts positioned circumferentially around the lock ring. Once the lock ring has been disengaged lifting the upper joint will separate the connection.

2.6 Driveability

The Lynx SA2 is ideally suited to pile driving applications. This is due to the optimised geometry of the connector incorporating a large internal abutment face, which transmits piling loads through the body of the connector and not through the load shoulders.

2.7 Handling

The connector has an integral elevator shoulder that enables the use of a standard side door elevator.

2.8 Protectors

The Lynx SA2 connector pin end is fitted with a rubber and steel reinforced open- ended protector to avoid damage during transit and storage.

The box, complete with lock ring, is robust enough not to require a protector as the lock ring protects the internal sealing face from damage during transit and handling.

2.9 Seals

The Lynx SA2 is fitted with a primary O-Ring seal.


3.0 TECHNICAL SPECIFICATION

The Lynx SA2 connector is produced in a range of sizes and configurations, to suit various applications, pipe wall thickness and pipe grade.

Nominal OD Pipe Wall thickness

Connector OD

Connector ID

Tensile yield Bending yield

Internal yield pressure

Type

In. mm In. mm In. mm In. mm Kips MN Kips MNm

Psi Mpa

SA2 185/8 473 0.625 15.88 21.9 557 173.3 440 1900 8.4 750 1.0 3000 10.3 SA2 20 508 0.50 12.7 23.2 591 18.8 476 1600 7.1 800 1.1 3000 20.7 SA2 20 508 0.625 15.9 22.3 567 18.75 476 1600 7.1 800 1.1 3000 20.7 SA2 20 508 1.0 25.4 23.2 591 18.0 457 1800 8.0 1000 1.4 3000 20.7 SA2 26 660 0.75 19.1 30.0 762 24.5 622 2770 12.3 2200 3.0 1500 10.3 SA2 26 660 1.0 25.4 29.5 749 24.0 310 2770 12.3 2200 3.0 1500 10.3

Lynx

SA2 30 762 1.0 25.4 33.5 851 280 711 3200 14.2 2800 3.8 1500 10.3

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4.0 MAKE-UP & BREAK-OUT PROCEDURE

This document is for reference information only. When running connectors obtain specific up-to-date running procedures from Oil States Industries Offshore Running Department

4.1 Preparation on Pipe Deck

1. Remove pin protector.

2. Thoroughly clean pin, box and lock ring ensuring that "O" ring is fitted and seated properly Figure 4-1.

3. If anti-rotation is required mark the locations of the cut out in the pin component and the anti-rotation block in the box (fitted internal to the box) as shown Figure 4-3

4. Check lock ring gap prior to make up Figure 4-5

5. Lightly coat the surface of each component with clear grease or oil.

6. Replace pin protector.

4.2 Procedure For Fitting Lynx O-Ring Seal

1. Thoroughly clean the O-Ring groove on the pin Figure 4-1 with a degreasing agent, ensuring that the groove is free from all foreign matter.

2. Apply a light coating of Molycote 33 medium grease (or similar) over the full surface area of the O-Ring seal.

3. Locate O-Ring on Lynx Pin. Figure 4-1

4.3 Make-Up Procedure When Anti-Rotation Blocks are not Fitted

1. Remove protector.

2. Ensure that all jacking screws are removed from the lock ring.

3. Check lock ring Gap prior to make up. (Figure 4-5).

4. Pack screw locations with sea water resistant grease.

5. Stab box/lock ring over the pin. Weight of top joint will expand lock ring. When pin and box abutment faces come together lock ring will snap closed. (Figure 4-4).

6. Visually check lock ring gap to ensure full engagement (Figure 4-5 & Figure 4-6). Note Lock ring gap should return to size measured prior to make up.

7. If the lock ring gap does not return to the size measured prior to make up a light tap around the circumference of the lock ring may be required. If the lock ring gap does not return to the original size prior to make up lay the joint aside for inspection. Note: If add-on joint is too short for its weight to make-up joint the following procedure should be used.

8. Using wrench, screw in each of the four jacking screws supplied until they shoulder out. (Figure 4-7 break out procedure)


9. Lower box/lock ring to ensure full engagement.

10. Remove screws and pack screw locations with sea water resistant grease.

11. Visually check lock ring to ensure full engagement (Figure 4-5 & Figure 4-6.)

NOTE: LOCK RING GAP SHOULD RETURN TO SIZE MEASURED PRIOR TO MAKE UP.

12. If the lock ring gap does not return to the size measured prior to make up a light tap around the circumference of the lock ring may be required. If the lock ring gap does not return to the original size prior to make up lay the joint aside for inspection.

MAKE UP IS COMPLETE

4.4 Make-Up Procedure When Anti-Rotation Blocks are fitted

1. Ensure that all jacking screws are removed from the lock ring.

2. Fill screw locations with sea water resistant grease.

3. Check lock ring Gap prior to make up Figure 4-5.

4. Line up the paint marks Figure 4-2 on the pin and the box.

5. Stab box/lock ring over the pin. Weight of top joint will expand lock ring. When pin and box abutment faces come together the lock ring will snap closed. (Figure 4-3)

6. Visually check lock ring gap to ensure full engagement Figure 4-5 & Figure 4-6. Note Lock ring gap should return to size measured prior to make up.

7. If the lock ring gap does not return to the size measured prior to make up a light tap around the circumference of the lock ring may be required. If the lock ring gap does not return to the original size prior to make up lay the joint aside for inspection. Note: If add-on joint is too short for its weight to make-up joint the following procedure should be used.

8. Using wrench, screw in each of the four jacking screws supplied until they shoulder out. Refer to Connector Disconnect Figure 4-7

9. Lower box/lock ring to ensure full engagement.

10. Remove screws and pack screw holes with sea water resistant grease.

11. Visually check lock ring gap to ensure full engagement Figure 4-5 & Figure 4-6. NOTE: LOCK RING GAP SHOULD RETURN TO SIZE MEASURED PRIOR TO MAKE UP.


12. If the lock ring gap does not return to the size measured prior to make up a light tap around the circumference of the lock ring may be required. If the lock ring gap does not return to the original size prior to make up lay the joint aside for inspection.

MAKE UP IS COMPLETE

FIGURE 4-1 O’ RING


FIGURE 4-2 LYNX SA2 MAKE-UP

FIGURE 4-3 ANTI-ROTATION BOX FITTED TO BOX


FIGURE 4-4 LYNX MAKE-UP PROCEDURE


FIGURE 4-5 LOCKRING GAP

NOTE: THE DIMENSIONS MARKED ON THIS DIAGRAM REPRESENT THE

RANGE THE LOCK RING GAP CAN BE MANUFACTURED TO. IT IS IMPORTANT THAT THE GAP IS MEASURED PRIOR TO ASSEMBLY ON THE RIG FLOOR AS THE GAP SHOULD RETURN TO THE MEASURED SIZE AFTER MAKE UP. +/- 0.04”


FIGURE 4-6 EXTERNAL VISUAL CHECK

4.5 Break Out Procedure

Tool required – Socket wrench.

1. Insert four jacking screws in lock ring and hand tighten Figure 4-7.

2. Using wrench, screw in each of the supplied jacking screws until they shoulder out. (A total distance of radial travel of 0.45”.)

3. Lift joints free.

4. Remove jacking screws to allow the lock ring to return to its relaxed position.

5. Clean box/lock-ring and pin and apply grease.

6. Fit protector.


FIGURE 4-7 BREAK OUT PROCEDURE


5.0 TYPICAL OFFSHORE INSTALLATION PROCEDURE FOR RUNNING WEIGHT SET CONNECTORS

5.1 Equipment Required

1. 1 off side door elevators (SDE).

2. 1 off socket wrench.

5.2 Preparation Before Installation

1. Ensure all joints are laid out on pipe rack with the pin ends nearest the vee door.

2. Remove all protectors.

3. Thoroughly clean and inspect connectors and "O" rings for damage. Replace seals, if necessary.

4. Measure and tally conductor Figure 5-7.

5. Refit protectors.

6. Attach slings (or bales) to blocks.

7. Attach first elevator to slings.

8. Position second elevator near the vee door.

9. Ensure a suitable wrench and a set of jacking bolts are available on the drill floor.

5.3 Installation Procedure

1. Pick up joint no. 1 with deck crane and position in vee door Figure 5-1.

2. Attach first SDE to joint Figure 5-2.

3. Pick up joint no. 1 using draw-works and deck crane Figure 5-3.

4. When in the vertical position release the deck crane slings.

5. Lower joint no. 1 through rotary table until first SDE lands off Figure 5-4. Note: During step 5 joint no. 2 should be positioned in the vee door and the second SDE attached to the joint using an air winch.

6. Remove slings from first SDE and attach to second SDE Figure 5-5.

7. Repeat steps 3 and 4.

8. Lower joint no. 2 to make-up level Figure 5-6

9. Remove pin protector from joint no. 1.

10. Note: At this point ensure both connectors are clean and free from any debris, and the seals are correctly fitted.

11. Make up connector referring to Oil States Connector work instruction for the size of connector being installed as sizes and specifications may vary.

12. Pick up joints.


13. Remove first SDE with air hoist and fit to next joint in vee door.

14. Lower joints through rotary table until second SDE lands off.

15. Repeat as before until all joints have been installed.


FIGURE 5-1 INSTALLATION SEQUENCE




FIGURE 5-7 MAKE-UP LOSS


6.0 TESTING SUMMARY

6.1 Introduction

The Lynx SA2 connector has been subjected to a variety of full scale tests. All the tests were witnessed by Lloyds Register of Shipping and were carried out on 30" connectors.

6.2 30" Lynx SA2 Connector Tests

The following tests have been undertaken:-

a) Internal Pressure

1500 psi held for 60 minutes with "O" ring fitted.

b) Bend with Internal Pressure

Bend to 2.59 x 106 lbf.ft with 500 psi internal pressure and held for 15 minutes.

c) Bend Test

Bend to 3.6 x 106 lbf.ft with no undue deformation observed.

All testing has been Lloyds witnessed, copies of certification can be provided on request.

LynxSA2 - Techpack

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