15
Robert Blackmun 18/11/2014 High Pressure & Deepwater Risers The Nimway Connector

High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

  • Upload
    others

  • View
    9

  • Download
    2

Embed Size (px)

Citation preview

Page 1: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Robert Blackmun18/11/2014

High Pressure & Deepwater RisersThe Nimway Connector

Page 2: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Content

Subsea system integrity & risers

A brief history of boring old steel risers

Nimway CWOR connector Connector overview Proof of Concept Qualification

Page 3: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Subsea System Integrity Status and challenges of subsea standardisation Life extension of subsea assets Inspection techniques – subsea systems Condition monitoring Data management Industry collaboration The subsea factory Life extension for risers, flowlines, tiebacks, umbilicals and subsea control systems Integrity management of flexible risers Flow assurance Pipeline integrity Pipeline inspection techniques

Page 4: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Intervention – what can be done?

Light Well Intervention Coiled Tubing 

DeploymentRiserless

Intervention

Page 5: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

What can risers do?

CWOR

CompletionTubing 

installation

Pressure testing

Bullheading

WorkoverExtended well test

Early production

Suspension

Wireline logging

Coiled tubing ops

Completion and Workover Riser (CWOR)

Page 6: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

What challenges do we face?

Higher Pressure

Higher Temperature

Deeper Water Manufacturing Challenges

Page 7: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

What can we make?

Boring old steel risers 80ksi NACE (22HRC / 250HV10) Low alloy / carbon steels Q&T pipe & forgings

Welded construction 45ft joints Fatigue qualified Inconel weld inlay

Page 8: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

CWOR Connector

Page 9: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Nimway features

Tensioned sleeve Evolved from a flange Reliable preload 2 minute make up Hands free make up

Virtually unlimited make/break No torque = no galling, no wear Weld repairable seal pockets Replaceable CRA metal seal Replaceable components

Shoulder flange

Hub flange

Collar

Metal /metal seal 

Sleeve

Page 10: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Bolting up a flange

Page 11: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Bolt Tensioning

• Hydraulic cylinder stretches stud• Wind nut down by hand• Nut locks stretch in stud

Page 12: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Evolution of Bolt Array to Sleeve

Collar = NutsSleeve = Studs

External section removed

Page 13: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

What have we done? Proof of Concept Test

Produce 5” 15,000psi Nimway test specimen 

Simple MUT (tensioning tool) Make / break tests Hydrotest to 22,500psi Strain gauge make / break Repeatability within 2.5%

Validation of FEA Preloading accuracy 2% Hydrotest accuracy 3%

Page 14: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

What are we going to do?

Nimway 710 – mid 2015 Nimway 510 – end 2015 ISO 13628‐7 Annex I API 17G WD5 Annex I Connector and weld qualification Project materials Project fabrication Accelerated first project delivery schedule

ConnectorTest

Connector 1

Connector 2

Connector 3

Seal Fixture

Annex I.5.3.1 Hydrostatic body test

o o o o

Annex I.5.3.2 Make/Break Testo o o

Annex I.5.3.3 Seal/gasket test procedure to

ISO 10423 F.1.11o o

Annex I.5.3.3 Seal/gasket test procedure to ISO 10423 

F.1.13.5.3o

Annex I.5.3.6 Cyclic load testo o o

Annex I.5.3.5 External load test

o

Annex I.5.3.6 Cyclic load test  to Failure

o

Annex I.5.3.5 External load test to failure

o

Annex I.5.3.3 External Pressure Test

o

Annex I.5.3.4 Internal pressure (burst) strength

o

Page 15: High Pressure Deepwater - Subsea UK...Coiled tubing ops Completion and Workover Riser (CWOR) What challenges do we face? Higher Pressure ... Microsoft PowerPoint - 1411 High Pressure

Thank You for Listening