PROCEEDINGS

EUROPEAN PETROLEUM CONFERENCE 25-28 October 1982 Royal Lancaster Hotel, London

TIB/UB Hannover 126 876 86X

89

TABLE OF CONTENTS EUR 270

Application of the Repeat Formation Tester in Vertical and Horizontal Pulse Testing in the Middle Jurassic Brent Sands

9

by L.P. Dake, The British National Oil Corp.

EUR 272

The Interpretation of Distributed Pressure and Flow Measurements in Produced Reservoirs

15

by George Stewart, Heriot-Watt University, and Manfred Wittman, Schlumberger

EUR 273

EUR 274

Determination of Rock Properties by Quantitative Processing of Geophysical Borehole Logs by R.C.A. Peveraro and H.W. Cable, Britoil Ltd.

29

Application of the Vertical Seismic Profile to the Piper Field

39

by Robert Johnson, Hugh Riches, and Hassan Ahmed, Occidental Petroleum (Caledonia) Ltd.

EUR 276

Development of a New High Reliability Downhole Pumping System for Large Horsepowers

49

by M.L. Ryall and A. A. Grant, Weir Pumps Ltd.

EUR 277

Buchan—The First Nine Months

61

by P.W. Williams, BP Petroleum Development (U.K.) Ltd.

EUR 278

Separation of Oil From Water

73

by Richard van Staa, Pielkenrood-Vinitex B. V.

EUR 279

Development and Achievements of a Computerized System for Inventory Control and Failure Analysis of Subsurface Safety Valves

81

by Ed G. Durrett and Fred W. Linton, Phillips Petroleum Co. Norway E U R 281

The Use of Non-Neighbour Grid Connections in Reservoir S i m u l a t i o n . . . .

89

byJ.W. King, P.F. Naccache, M.O. Nicholas, R.K. Pollard, D.K. Ponting, and J. Rae, Atomic Energy Research Establishment Harwell, and S. K. Walsh, Atomic Energy Establishment Winfrith

EUR 282

Fulmar Pre-Development Simulation Study

99

by Jess H. Stiles Jr., Esso Exploration & Production U.K., and Jack E. Bobek, Exxon Production Research Co.

EUR 283

The Cascade Method for Accelerated Convergence in Implicit Simulators.

113

by John R. Appleyard and Ian M. Cheshire, Exploration Consultants Ltd. E U R 284

Methods for Modeling the Performance of Layered Reservoir S y s t e m s . . . .

123

by Christopher A. Smith, ERC Energy Resource Consultants Ltd.

EUR 286

Safety: An Integral Part of Offshore Oil Operations

131

by C.R. Penny, BP Petroleum Development (U.K.) Ltd.

EUR 287

Future Trends in Influence and Control—A Government View

135

by Magne Ognedal, Norwegian Petroleum Directorate

EUR 288

Future Trends in Influence and Control—An Industry View

141

by G. W. Smith, Mobil North Sea Ltd.

EUR 289

Crude Oil Foaming Problems at the Sullom Voe Terminal

155

by Denis H. Seaton and Alan J, Reid, BP Petroleum Development (U.K.) Ltd., and Ian C. Callaghan and Clive M. Gould, BP Research Centre

EUR 291

The Role of Environmental Audit and Survey in Offshore Production Management by Cliff S. Johnston, Heriot-Watt University

167

Some Petroleum Engineering Considerations in the Change-Over of the Rough Gas Field to the Storage Mode

175

by A. P. Hollis, British Gas Corp.

The East Midlands Additional Oil Project—Two Years On

185

by Dennis M. Grist and Frank Musgrave, BP Petroleum Development (U.K.) Ltd., and Robert W. Mitchell, BP Research Centre

Auk Lower Zechstein—Drainage Mechanism Model

207

by Michael A. Tosdevin, Shell U.K. Exploration & Production

North Sea Tax and Economics by David D. Morrison and Valerie Jolliffee,

219 Wood, Mackenzie & Co.

Conditions for the Development of Smaller Discoveries in the North Sea. .

227

by C.H. Bayly and T.F. Cox, Gaffney, Cline & Associates Ltd.

The Mechanics of Depletion Policies

235

by Martin R. Lovegrove, ML Petroleum Services Ltd.

Economics of Oil and Gas Production in North America: A Benchmark for Europe

243

by Robert A. Odd, Bank of Montreal

Project Finance—The Role of the Oil Specialist in Banking

249

by David C. Anderson and Thomas S. Radford, Barclays Group of Banks

Structural and Environmental Re-Evaluation in the Viking Field

257

by Jeremy G. Tyson, Conoco Ltd.

Ship Impact on Concrete Shafts

269

by Bjdrn Rdland, Det norske Veritas; Tor O. Olsen, Dr. Techn. Olav Olsen; and Einar Skaare, Statoil-Asker

Installation of the Fulmar SALM and Storage Tanker

277

by Richard H. Gunderson, Exxon Production Research Co.; John G.B. Coombe, Shell U.K. Exploration & Production; and Peter A. Lunde and Charles O. Etheridge, Ocean Resources Engineering, Inc.

Design, Fabrication, and Installation of a One-Piece Jacket, 285 Metres of Water, Gulf of Mexico

289

by Robin M. Converse, McDermott, Inc.

Case History of a Pilot Fracture Treatment Carried Out on the Clair Field, West of Shetland, From a Semisubmersible

299

by Barry F. Hood, BP Research Centre, and S. E. Powell, BP Alaska Exploration

Sand Arching—A Case Study

313

by Rasmus Risnes, Rogaland Regional College, and RolfK. Bratli and Per Horsrud, Continental Shelf Institute

Laboratory Studies of the Effectiveness of Gravel Packing Perforations and Screen-Casing Annulus in Highly Deviated Wells by James M. Peden, Mufutau B. Oyeneyin, John Russell, Zhenwu Liu, and Fernando A. Guitart, Heriot-Watt University Prediction Model for Optimum Gravel Packing Efficiency in Highly Deviated Wells by James M. Peden, Mufutau B. Oyeneyin, and John Russell, Heriot-Watt

321

331

University

The Selection of Scale Inhibitors for the Forties Field by Cledwyn T. Hughes and Kenneth P. Whittingham, BP Research Centre

341

EUR 314

The Use of a Computer Modeling System When Assessing the Economics of North Sea Projects—A Case Study

357

by Andreas Crede and Andrew Porter, European Banking Co. Ltd.

EUR 315

A Modular Interactive Approach to North Sea Oilfield Economics Modeling

367

by Robert L. Ridings, R.S. Royalties Inc., and Geoffrey D. Geaves, Datasolve Ltd.

EUR 316

A Method of Evaluating Economic Risk for an Offshore Field Development Project by Jan Sullivan,

EUR 317

373

Intercomp Resource Development & Engineering (U.K.) Ltd.

North Sea Development Risk: A Historical Analysis

395

by John A. Tweedie and Gerald M. Kenny, Heriot-Watt University

EUR 318

Cost-Effectiveness and Optimisation in the Design of Platform Substructures by Nick C. Bradshaw,

EUR 319

411

John Brown-Earl & Wright Ltd.

Recommendations for the Optimum Fabrication and Erection of Fixed Offshore Steel Platforms

421

by William D. Hartell, Brown & Root, Inc., and William T. Jones and Billy T. McCaslin, Marathon Oil U.K. Ltd.

EUR 320

Motion Monitoring of a Moored Floating Platform During Installation Over a Subsea Template

435

by B. Stahl and W.E. Nelson, Amoco Production Co., and M.P. Baur, Amoco (U.K.) Exploration Co.

EUR 322

Certification of Facilities—Legal, Financial, and Safety Implications by Peter L. Gaches,

EUR 324

New Approaches in Offshore Fire and Gas System Design by J.E.

EUR 325

Bailey,

449

Worley Engineering Ltd.

457

Ferranti Computer Systems Ltd.

Development of Approved Low-Weight Accommodation Modules for Use on Permanent Offshore Platforms

465

by Robert A. Baker, Gotaverken Modul AB EUR 326

P r o b l e m A r e a s in C o m m u n i c a t i o n s - E l e c t r o n i c s in t h e N o r t h S e a S c e n e . . . . by A. W. Richards, Shell U.K. Exploration & Production

EUR 327

The Technological Challenges of Exploiting Gas Offshore Northern Norway

475

485

by Sigmund Helland, Statoil

EUR 328

Construction and Operation of Salt Cavities for Storage of Natural G a s . . .

493

by John Boardman and Edward R. Spicer, British Gas Corp.

EUR 330

Phase Behavior and Dense Phase Design Concepts for Application to the Supercritical Fluid Pipeline System

505

by Risdon W. Hankinson and Thomas W. Schmidt, Phillips Petroleum Co.

EUR 331

North Sea Offshore Compression—Future Needs by Peter E. Simmons,

EUR 332

511

Shell U.K. Exploration & Production

Optimization of Criteria for Design, Construction and In-service Inspection of Offshore Structures Based on Resource Allocation Techniques by Rune Sletten, Kare Mjelde, Svein A. Fjeld, and Inge Lotsberg, Det norske Veritas

519

EUR 333

EUR 334

Review of the Basic Capabilities and Limitations of NDT Techniques Used for Inspection of Offshore Structures by J.M. Farley and B.J. Dikstra, Babcock Power Ltd.

533

The State of the Art of Underwater Inspection

543

by Henk Bosselaar,

EUR 335

EUR 338

EUR 339

Koninklijke/Shell Exploratie en Produktie Laboratorium

Structural Inspection From an Underwater Engineering Contractor's Viewpoint 555 by Ian J. Murray and Edmond Bewley, Tlialassa Offshore (Scotland) Ltd. The Cause and Cure of Vibration-Induced Failure of Drill Casing in High Tidal Currents 567 by Derek Brown and Mike Bartle, British Gas Corp. Experience With Polycrystalline Diamond Compact Bits in the Northern North Sea 575 by Andrew W. Pater son and John P. Shute, Conoco (U.K.) Ltd.

EUR 340

Well Killing Methods on Existing Blowouts by Jozsef Hingl and Gyorgy Szabo, OKGT/Budapest

583

EUR 341

Gas Supply and Marketing Trends by Burckhard Bergmann, Ruhrgas AG

589

EUR 342

The Future of Norwegian Gas 601 by Henrik Ager-Hanssen, Statoil Platform Structural Repairs--A Case Study of Repairs to the Phillips Ekofisk Delta Platform—May to August 1981 611 by A.W. Stevenson and D.R. Melton, Oceaneering International Services Ltd., and A. Sieveland, Phillips Petroleum Co. Norway

EUR 347

EUR 348

Repair of Storage Cell Roof on Brent Bravo Platform 629 by B.G. Humphrys, McAlpine Sea Services Ltd., and Eric C. Faulds, Shell U.K. Exploration & Production

EUR 349

Crane Slew Ring and Pedestal Problems in the Viking Field by Archibald W. Kennedy, Conoco Ltd.

641

EUR 350

Offshore Cranes—Design and Manufacturing Criteria by Peter Holland, Lloyd's Register of Shipping

651

EUR 351

Offshore Preplanning for Motion Sensitive Operations by Samuel Taggart and Neil Starsmore, Atkins Research and Development

661

EUR 353

Principal Design a n d Construction Criteria for Future Offshore C r a n e s . . . .

673

by Horst Zimmermann, Liebherr Werk Nenzing GmbH EUR 354

Development of a Reliable Subsea Valve System by E.B. Shone, Shell Research Ltd., and D. V. C. van den Wall Bake, Shell

679

U.K. Exploration & Production EUR 355

D e s i g n , Fabrication, and Installation o f t h e North C o r m o r a n t Platform. . . .

691

by Theodore E. Leonard, Shell Expro U.K. Ltd. EUR 357

EUR 358

Design, Fabrication, Hook-Up, and Commissioning of North Cormorant Topside Facilities by T. Michael G. Cloughley, Shell U.K. Exploration & Production

703

Design Calculations for Three-Phase Flow Behaviour in Wells and Flowlines and Some Problems in Their Application to the North Sea by Raj K.M. Thambynayagam and Peter G. Bristow, BP Petroleum

711

Development Ltd.

EUR 359

North Cormorant Project

725

by R.M. Clawson, Shell Expro (Esso Expro)

EUR 360

Murchison Probability Analysis of Marine Contracts

733

by Pentti K. Lauren and John N. Hall, Conoco (U.K.) Ltd.

EUR 361

Project Audit—A Management Approach

743

by Peter J. Bosworth, PA Management Consultants, Ltd.

EUR 362

Project Poisons and Antidotes

749

by V.F. Hill, Brown & Root Inc.

EUR 364

Reciprocation of Casing While Cementing From a Floating Drilling Unit. .

759

by Arne Holhjem and Gerald W. Berk, Phillips Petroleum Co., and Robert S. Hoch, XXX Drilling/Development Engineers Inc.

EUR 365

Successful Liner Completions on the Murchison Platform

769

by KerrA. Johnston, Conoco (U.K.) Ltd., and Leo Burdylo, Dowell Schlumberger

EUR 366

Bulk Cement Transport—An Overview

777

by John McLuckie, Halliburton Manufacturing & Services Ltd., and Ian M. Geddes, Phillips Petroleum Co. Europe-Africa

EUR 367

Cement to Formation Bonding in Low-Permeability Argillaceous Strata.. .

787

by Nicholas S. Robins, Institute of Geological Sciences, and James M. Macadam, Halliburton Manufacturing & Services Ltd.

EUR 368

Testing and Developing Fire-Resistant Wellheads and Valves

795

by Kendall E. Keene, FMC Corp.

EUR 370

New Subsea Choke and Choke Calibration System

805

by Alan S. Homer, Nick G. Dadiras, and Jim Luke, Sedco-Hamilton Production Services Ltd.

EUR 371

Mathematical Modeling of 15-meter Subsea Wellheads

813

by Augusto C. DaMota, Shell Expro (U.K.)

EUR 372

Subsea Hydraulic Power Generation and Distribution for Subsea Control Systems

829

by Tony Pipe, TRW Ferranti Subsea Ltd.

EUR 373

The Role of Atmospheric Diving Suits on Manifold Inspection and Maintenance

843

by John P. Balch and Steven J. Carnevale, Advanced Technology Group, OCEANEERING International

EUR 374

Quality Planning for Offshore Production Platform Projects

853

by Kenneth Wood and Derek J. Benham, Shell Expro (U.K.)

EUR 375

Project Management and Quality Assurance—Expectation and Realisation in People and Production

863

by Warren J. DeVos and Roland W. Altmann, Boeing Engineering & Construction International

EUR 376

The Planning and Control of Offshore Hook-Up and Commissioning

871

by John Claridge, PA Management Consultants Ltd.

EUR 377

Contract Surveillance by Peter Clark, PA Management Consultants Ltd.

879

EUR 378

FLAGS Offshore Gasline Project by Douglas E. BroUSsard, Shell U.K. Exploration & Production; Manfred D. Lux, Esso Exploration & Production, Norway Inc.; and Kees P. Havik, Shell International Petroleum Maatschappij

885

No manuscript was received for the following papers:

EUR 271

Residual Oil Saturation Measurements in Low/Mixed Water Salinity Environments Using Carbon-Oxygen Logging Techniques in the Piper Field by P.A. King, Occidental Petroleum (Caledonia) Ltd., and T.A. Ma, Dresser Atlas

EUR 275

Metering of High Vapour Pressure Crude Oils—An Examination of the Case for Mass Measurement in Shared Pipeline Systems by R. C. Gold and S. G. Simmons, BP International Ltd.

EUR 280

The Use of Integrated Simulation Studies To Predict Field Performance by A.F. Corrigan, H. Roberts, and R.L. Lolley, Intercomp Resource Development & Engineering (U.K.) Ltd.

EUR 292

Effluent Treatment System—Sullom Voe Treatment by R.L. Thomson, BP Petroleum Development (U.K.) Ltd.

EUR 296

Performance of the Piper Reservoir in Relation to Controlled Field Offtake by S. G. Gibson, E. T. De Boer, and M. Wiebe, Occidental Petroleum (Caledonia) Ltd.

EUR 321

Hydrodynamic Analysis of TLP's—A Comparison of Model Tests and Mathematical Analyses by A. Bliault, Global Engineering Ltd.

EUR 329

An Analysis of Recovery Techniques in Large Offshore Gas Condensate Fields by D.C. Wilson, E. Prior, and D.M. Fishman, (ERC) Energy Resource Consultants Ltd.

EUR 343

Gas Demand and Pricing by H. Franssen, International Energy Agency

EUR 344

Development Options for Small Gas Fields by K.W. Vosper and B.G. Stevens, British Petroleum p.I.e.

EUR 352

Crane Operator Training by B.W. AdantS, Sparrows Offshore Services

EUR 356

Optimal Protection Covers for Subsea Pipeline Equipment by S. Duckworth, J.P. Kenny & Partners Ltd., and B.A. Mackay, British National Oil Corp-