April 1983 - Maritime Reporter and Engineering News

OTC-'83 SUPPLEMENT and EXHIBITOR'S GUIDE

May 2-5, 1983, Houston Discoveries big and small — "Oceans of Discoveries" — will be found at the 1983 Offshore Technology Conference, May 2 through 5, at the Astrodomain Complex in Houston, Texas. It will bring together leading authorities on the offshore industry, scientists, engineers and representatives from oil exploration, production and service industries.

In 1982 more than 108,000 people from 90 nations attended the conference, reaffirming the Offshore T e c h n o l o g y Conference (OTC) as the leading worldwide forum for the dissemination and exchange of technical information related to the development of ocean resources and the environment.

Attendance at OTC '83 should equal or surpass the 1982 conference.

The 1983 conference will provide a symposium for 39 technical sessions, with the presenta- tion of more than 207 technical papers, focusing on case studies of major offshore developments, new technologies in drilling and production, geological and geophysical advancements, platform design, construction and installation, transportation and developments in ocean mining.

An array of products and services unmatched in size and scope and encompassing more than 630,000 square feet of space will provide knowledge of industry advancements. The latest improvements and innovations in hardware and services available to the total offshore industry will be shown by 2,500 exhibiting companies.

Vast areas of the world's continental shelves remain completely unexplored, not to mention undeveloped, and it is inevitable that these areas will and must be explored and developed in years to come. The scientific promise offered by the oceans goes far beyond the singular challenge of oil and gas exploration and production. The potential of renewable mineral resources, represented by the re- cent discovery of new deposits of polymetallic sulfides, and the quest for world food sufficiency involving aquaculture experimentation, are just two examples of the realms to be explored.

The development of these marine resources will require the utilization of all major fields of engineering and science and the cooperative efforts of leading societies will turn dreams into reality.

This is the premise on which OTC was founded.

The 11 societies that sponsor OTC account for more than 500,- 000 members worldwide and span every technology associated with the exploration and production of ocean resources and environment protection. It is this cooperation that will continue to make the Offshore Technology Conference the definitive, stateof- the-art technical conference and exhibition for the offshore industry.

Technical Program The resources of the ocean and the newest technology in obtaining those resources will be examined in the 207 technical papers to be presented. The papers were selected from more than 790 submitted to the OTC Program Committee. The chairman of the committee is Capt. Don R. Wells, USN, Naval Facilities Engineering Command, Alexandria, Va.

"The selection of technical papers has been increasingly competitive over the last few years, and the papers that were selected for OTC '83 really represent the cream of the crop," said Captain Wells. "Each paper went through a detailed review process by the 12-member program committee, with additional evaluation from each committee member's subcommittee.

We think the papers represent the latest and most significant technology in the offshore field." Many of the papers will focus on offshore platform design, construction and installation. Among these will be a session devoted to the Tarsiut Caisson Island, an artificial drilling island constructed in 1981 in the frozen environment of the Canadian Beaufort Sea. This session, which will include five presentations, is scheduled for the morning of May 3.

Energy experts will discuss new technologies in drilling and production areas. One pioneering effort in particular, the Central Underwater Manifold Centre Project, will be the subject of an intensive review. The UMC, a project of Shell and Esso Exploration and Production, United Kingdom, is the world's largest and most complex subsea production facility. It is located in the North Sea. The five papers on this project will be presented during the afternoon of May 4.

New technology, especially that used in geological and geophys- ical investigation, will be reviewed at the conference by the scientists and technicians who have developed it. One process, a new seismic-logging tool known as vertical seismic profiling, has provided those exploring for petroleum offshore a look ahead of the drill bit through the use of digital computers. It is expected to have a major impact on the collection of accurate information on seismic wave propagation.

This session will be held during the afternoon on May 3.

Another session will address the vast resources beneath the ocean floor and the economics of deep ocean mining. That session is scheduled for the afternoon of May 2.

The accompanying Technical Session Timetable lists the subjects of all sessions.

Exhibits The entire Astrodomain has been reserved for exhibits of equipment and services. The 2,500 exhibiting companies, up 200 from last year, is a testimonial to the effectiveness of OTC. In the first year of OTC only 200 companies had exhibits.

Each year since 1969 the total number of companies participating has grown rapidly.

In 1969 the exhibits occupied 38,500 net square feet of space.

This year there will be 631,000 net square feet of exhibit area and some prospective exhibitors had to be denied space for lack of room.

The full list of exhibitors appears at the end of this article.

Awards Luncheon At the annual OTC Awards Luncheon on May 2, Peter R.

Vail, senior research scientist for Exxon Production Research Company, will receive the Distinguished Achievement Award for Individuals for contributions to the industry. Cameron Iron Works of Houston will receive the Distinguished Achievement Award for Companies. Myron A.

Wright, Cameron chairman and chief executive officer, will accept the award.

Mr. Vail will receive the award for his development of a fundamental geologic concept that has had broad implications in understanding the way that oceans have acted through geologic time, He has made outstanding contributions to offshore geology and geophysics by research on stratigraphy and petroleum accumulation.

His concepts have led to improved methods of geologic age determination and stratigraphic prediction from seismic data.

Cameron Iron Works will be recognized for the development, design, manufacture and installation of the first caisson subsea completion system. The caisson system is the first subsea completion with its critical components below the mudline, providing maximum protection and safety in offshore installations where anchors, nets, trawlboards and icebergs pose hazards to subsea completions.

General Shuttle Bus Service—OTC will provide complimentary shuttle bus service between the Astrodomain Complex and all hotels and motels listed with the OTC Housing Bureau and the official travel agents during the conference.

Astrodomain Parking—Special parking permits that allow "Inand- Out" privileges during conference days will be available at all "Early-Bird Registration" sites. Additionally, special parking permits can be purchased in the Exhibitor Services Areas in the Astrodome, Astrohall and Astroarena. There is also onetime parking. Vehicles are prohibited from parking overnight.

Message Center — A message center, operated by Southwestern Bell Telephone Company will be located in Room 300 of the Astrohall.

The message center telephone number is (713) 791-1600.

It will be open during conference hours. No paging system is available in the Astrodomain Complex.

OTC Publications — To obtain copies of either the 1983 Proceedings (three-volume set) and/ or the Proceedings Index, order forms may be obtained from Offshore Technology Conference, 6200 North Central Expressway, Drawer 64705, Dallas, Texas 75206. Sets of Proceedings from previous conferences can be obtained at the same address.

NASA Tours — Tours will be offered Tuesday and Wednesday to the nation's only center for manned space flight.

Technical Program Monday Morning 9:00 to 11:30 a.m.

• Safety and Containment OTC 4442 Risk Analysis Applied to Offshore Platforms During the Unpiled Installation Phase 4443 A 100-Well Analysis of Offshore Blowout Causes 4444 Reliability of Subsea BOP Systems 4445 Limitation of Liability Under U.S.

Laws Pertaining to Offshore Technology Operations 4446 Containment of Naturally Occurring Subsea Hydrocarbon Emissions- Project Review • Material Selection and Specifications OTC 4447 Development of a Specification for Offshore Christmas Tree and Wellhead Components 4448 Problems Associated With the Specifications of Castings for Offshore Application 4449 Selection and Evaluation of High Strength Steel for Hutton TLP Tension Leg Elements 4450 Evaluation of Structural Steel Castings for the Hutton Tension Leg Platform 4451 High Alloy Materals for Offshore Applications • Offshore Pipelines OTC 4452 Construction of the Hondo Sour Gas Pipeline 4453 The Behavior of Concrete Over Thin Film Epoxy Coatings on Offshore Pipelines 4454 Hydrodynamic Forces From Wave and Current Loads on Marine Pipelines 4455 The Influence of Boundary Layer Velocity Gradients and Bed Proximity on Vortex Shedding From Free Spanning Pipelines 4456 Stresses of Pipelines During Earthquakes • Ice Mechanics OTC 4457 A Probabilistic Basis for Selecting Design Ice Pressures and Ice Loads for Arctic Offshore Structures 4458 Added-Mass and Damping for Ice Floes by Long Water Wave Theory 4459 Physical and Mechanical Properties of Icebergs 4460 Forecast of Iceberg Ensemble Drift 4461 Experimental Study of Ice Action on Two Structures 4462 Evaluation of Pile-Up Formation and Structure Interaction Forces Monday Afternoon 2:00 to 4:30 p.m.

• Foundation and Soil Investigation OTC 4463 Geotechnically Instrumented Seafloor Probe (GISP)-1981 Field Test, South Pass, Block 28 4464 Interpretation of Cone Penetrometer Test Data for Offshore Sands 4465 Effects of Offshore Sampling and Testing on Undrained Soil Shear Strength 4466 Site Investigation for Magnus 4467 1981 Geotechnical Site Investigation: Santa Ynez Unit Offshore California 4468 Water-Borne Resistivity/Induced Polarization Survey in Prudhoe Bay • Design for Impact and Buckling OTC 4469 The Impact Loads of Ships Colliding With Fixed Structures 4471 Design for Impact of Dropped Objects 4472 Buckling Design of Ring-Stiffened Cylinders 4473 The Buckling Design of Stringer Stiffened Shells Subject to Combined Pressure and Axial Compression 4474 Current Research Related to Buckling of Shells for Offshore Structures • Geophysical Data Gathering and Data Processing OTC 4475 A Powerful Marine Seismic Source Seismic Tuned Array of Steam Jets 4476 Pressurized Sparker Transducer 4477 Effectiveness of Wide Marine Seismic Source Arrays 4478 First Results From a Combination Side-Scan and Sea Floor Mapping System 4479 High Sensitivity Magnetic Profiling 4480 Marine Permafrost Detection Using Galvanic Electrical Resistivity Methods • Drilling Production and Completion Technology OTC 4481 Kulluk - An Arctic Exploratory Drilling Unit 4482 Bop and Wellhead Prolection/Subsea Arctic Caisson 4483 Seal Integrity and Connector Clamping Force at the Subsea Wellhead 4484 Newest TFL Retrievable Safety Valves for Subsea Completions 4485 Evaluation of API 14E Erosional Velocity Limitations for Offshore Gas Wells • TLP and Mooring Analysis OTC 4486 Viscous Damping in TLP Analysis 4487 Motion and Tether Force Prediction for a Deep Water Tension Leg Platform 4488 New Concepts for Mooring Offshore Structures 4489 Application of Digital Complex Demodulation Techniques to Low- Frequency Nonlinear Drift Forces in Irregular Seas 4490 Drag Coefficients of Long Flexible Cylinders • Ocean Mining OTC 4491 Deep Ocean Mining Economics 4492 Mineral Resource Potential of Pacific Sea Mount Crusts 4493 Evaluating the Economic Significance of Polymetallic Sulfides Deposits 4494 Distribution and Analysis of Selected Economic Heavy Mineral Species Within the Inner New York Bight 4495 Offshore Sand and Gravel Mining Tuesday Morning 9:00 to 11:30 a.m.

• Mooring Dynamics OTC 4496 Hydrodynamic Coefficients of Mooring Tower 4497 Dynamic Response in Mooring Line Subjected to Irregular End-Point Excitation: Numerical Simulations and Full-Scale Measurements 4498 The Dynamics of Inclined Taut and Slack Marine Cables 4499 Comprehensive Dynamic Analysis of Offshore Loading Concepts 4500 Dynamic Cable Analysis Models • Piles and Foundations OTC 4501 Using the Pressuremeter Curve to Design Laterally Loaded Piles 4502 Lateral Pile Response and p-y Curves From Centrifuge Tests 4503 An Improved Pile Driveability Theory for Gulf of Mexico Soils 4504 Lateral Response of a Group of Large Diameter Piles - A Case Study of a North Sea Platform 4505 Jack-Up Rig Failures in Soft Clay Deposits • Geophysical Interpretation OTC 4506 Scattering of Sound in Gassy Water and Sediments 4507 Diffractions Reveal Drilling Hazards 4508 Synthetic Seismograms With Offset for a Layered Elastic Medium 4509 Migration Before Stack With a Full Wave Equation 4510 2D and 3D Vector Forward Modeling 4511 North Sea Model Construction, Data Acquisition and Interpretation • Production Risers and Controls OTC 4512 Deepwater Production Riser 4513 Tie Back Requirements for Early Production System 4514 Differential Thread Riser Coupling for T.L.P. and Platform Tie-Back Applications 4515 Subsea and Process Controls for the Cadlao Floating Production System 4516 Subsea Production Controls - The Trend Toward Simplification • Tarsiut Caisson Island OTC 4517 Design and Construction of Tarsiut Island in the Canadian Beaufort Sea 4518 Tarsiut Winter Ice and Island Monitoring 4519 Geotechnical Instrumentation and Performance Monitoring of a Caisson Retained Island - Beaufort Sea 4520 The Influence of Waves on the Design of a Caisson Island 4521 Experience With Alert and Evacuation Tarsiut Island, Summer 1982 • Fatigue Analysis and Design OTC 4522 The Cognac Fatigue Experiment 4523 Corrosion Fatigue Strength of Offshore Monopod Tubular Joints in Cold Ocean Environment 4524 Experiences With Fatigue Analysis and Inspection Results in the North Sea 4525 Spectrum Fatigue of Welded Structural Steel in Sea Water 4526 Application of Liebovitz-Eftis Non- Linear Method to Fracture Control of Welded Structures 4527 Fatigue Tests on Welded Tubular T-Joints With Equal Brace and Chord Diameters Tuesday Afternoon 2:00 to 4:30 p.m.

• Mooring and Anchoring Experience OTC 4528 Model Anchor Tests in Cohesionless Soil 4529 Anchor Holding Tests in the Norwegian Trench 4530 Steady Wind-and-Current Induced Loads on Moored Vessels 4531 Wind Forces on a Semisubmersible Equipped With Alternative Drilling Derricks 4532 Full-Scale Measurements of Free- Oscillation Motions of Two Semi- Submersibles 4533 Three-Year Experience in the Numer- • Monitoring of Fixed Platforms OTC 4 5 3 4 Field Measurement of Platform Behavior, Comparison With Design, and Long Term Monitoring of Responses Stability After Three Years of Service 4 5 3 5 Flexibility Monitoring of Offshore Jacket Platforms 4 5 3 6 Instrumentation of BP Forties Field Platform FB 4 5 3 7 A Comparison of Analytical Methods With Experimental Data for Assessing the Ductility of a Tubular Frame Subjected to Intense Ground Motion 4 5 3 8 Structural Integrity Monitoring in Real Seas • Vertical Seismic Profiling OTC 4 5 3 9 Acquisition and Processing of Gulf Coast VSPs 4 5 4 0 Interpretation Aspects of Offshore VSPs 4 5 4 1 Panel Discussion on Marine Vertical Seismic Profiling • Field Development - Floating Production Systems OTC 4 5 4 2 Hondo Field Development and Operations 4 5 4 3 Topside Facilities for Floating Production Systems Require New Engineering Thinking 4 5 4 4 Self Installable: Floating Production Facility Requires Only Light Support Craft 4 5 4 5 Tanker-Based Floating Production: Startup and Operational Experiences With FPSO II Over the First Eighteen Months 4 5 4 6 Petrobras Experience on Early Production Systems 4 5 4 7 Behavior of a Floating Vessel/ Articulated Mooring Column System • Arctic Island Construction OTC 4 5 4 8 Construction of an Arctic Gravel Island in 39 Feet of Water During Winter and Summer 4 5 4 9 Strength of Offshore Gravel Islands to Ice Loads 4 5 5 0 The Design Ice Island for Impact Against an Artificial Island 4 5 5 1 A Satellite Terminal System for the Arctic 4 5 5 2 Berm Construction for the Gulf Canada Mobile Arctic Caisson 4 5 5 3 Application of Multiple Spuds (Dowels) to Development of Sliding Resistance for Gravity - Base Platforms • Diving, Salvage and Repair Operations OTC 4 5 5 4 Underwater Modifications to the Brent Field Gas Export Facilities 4 5 5 5 Hyperbaric Post Weld Heat Treatment 4 5 5 6 At-Sea Evaluation of Ship Motion Compensation Hoisting Devices 4 5 5 7 Salvage and Recovery of the OTEC-1 Cold Water Pipe 4 5 5 8 Removal and Abandonment of Offshore Oil and Gas Production Platforms Wednesday Morning 9:00 to 11:30 a.m.

• Marine Riser Analysis OTC 4 5 5 9 Improvements to Frequency Domain Riser Programs 4 5 6 0 Random Analysis of a Riser for a Floating Production System (FPS) in a Northern North Sea Environment 4 5 6 1 Tension Variation of Heave Compensation Systems: Results of Field Measurements 4 5 6 2 Analysis of Riser Measurements in the North Sea 4 5 6 3 Analysis of the 13,200 Ft. Riser Syst em With a Three Dimensional Riser Program 4 5 6 4 Deepwater Drilling Riser Disconnect Dynamics • Corrosion Control and Monitoring OTC 4 5 6 5 The Murchinson Cathodic Protection System 4 5 6 6 Hot Risers in the North Sea: A Parametric Study of CP and Corrosion Characteristics of Hot Steel in Cold Seawater 4 5 6 7 A New Versatile Method for Designing Cathodic Protection Systems for Marine Structures 4 5 6 8 Development of an Ultrasonic Inspection Pig for In-Service Wall Thickness Measurements of Gas Pipelines 4 5 6 9 Marine Growth on the Hondo Platform in the Santa Barbara Channel • Platform Construction and Installation OTC 4 5 7 0 Assembly of the Magnus Tower 4 5 7 1 Precise Seabed Emplacement of an Articulated Loading Platform in the North Sea 4 5 7 2 Bumper Pile Design for Mating Platform and Subsea Drilling Template 4 5 7 3 An Analytical Study and Systematic Monitoring Procedure for a Huge Scale Jacket Load Out Operation - North Rankin a Jacket Load Out 4 5 7 4 Full Scale Measurements of Motions and Stresses on a 1600T Jacket During Transportation • Subsea Production Facilities OTC 4 5 7 5 EDPP Subsea Trees for the Espoir Field, Ivory Coast 4 5 7 6 Satellite Tree Subsea Completions Permit Marginal Reserves Production Offshore East Kalimantan, Indonesia 4 5 7 7 Specific Features of a New Concept for Deep Water Flow-Line Laying and Connecting and Its Sea Trials in 250 Meters 4 5 7 8 Pressure Fall-Off Response Time Considerations in Subsea Wells Equipped for Through Flowline Maintenance OTC Sponsor Societies and Executive Committee The American Association of Petroleum Geologists (AAPG)—M.E. Milling, ARCO Oil and Gas Company.

The American Institute of Chemical Engineers (AlChE)—W.B. Katz, Illinois Chemical Corporation.

The American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME).

The American Society of Civil Engineers (ASCE)—W.J. Emrich, McClelland Engineers.

The American Society of Mechanical Engineers (ASME)—M.M. Livingston.

The Institute of Electrical and Electronics Engineers (IEEE)—J.C. Redmond, GTE Products Corporation.

The Marine Technology Society (MTS)—J.A. Rickard, Exxon Production Research Company.

The Society of Exploration Geophysics (SEG)—A.M. Olander, Exxon Company, U.S.A.

The Society of Mining Engineers (SME-AIME)—C.G. Welling, Ocean Minerals Company, and OTC Executive Committee chairman.

The Society of Naval Architects and Marine Engineers (SNAME)—W. DuB.

Thomas, J.J. Henry Co. Inc.

The Society of Petroleum Engineers (SPE-AIME)—D.G. Russell, Shell Oil Company.

The Metallurgical Society (TMS-AIME)—J.D. Defilippi, U.S. Steel-Research.

Exhibitor's representative—R.C. Rieder, Continental Emsco Company.

OTC Executive Manager—D.K. Adamson.

4579 Diverless Installation and Maintenance of Subsea Production Systems 300 M Test Project • Design of Arctic Islands Dynamics Applications Radar for Offshore Wave, Current, and Wind Monitoring Wednesday A f t e r n o on 2 : 0 0 to 4 : 3 0 p.m.

• Marine Riser Hydrodynamics OTC 4591 OTC 4580 4581 4582 4583 4584 4585 Design Criteria for Wave Run-up on Artificial Island Geotechnical Design of Caisson Retained Islands for Canadian Beaufort Sea Wave-Induced Erosion Around a Caisson-Retained Island Site Investigation and In-Situ Testing Techniques in Arctic Sea Bed Sediments Sea Bottom Scouring in the Canadian Beaufort Sea Iceberg Scouring on the Norwegian Continental Shelf Fluid Forces on Oscillating Cylinders in a Uniform Flow 4592 Sensitivity of Marine Riser Response to the Choice of Hydrodynamic Coefficients 4593 Large Scale Tests for Vortex Shedding Effects on Marine Risers 4594 An Assessment of Vortex Suppression Devices for Production Risers and Towed Deep Ocean Pipe Strings 4595 Effects of Shear Flow on the Vortex- Shedding-lnduced Vibration of Marine Risers 4596 Analysis of a 6000 Foot Riser During Installation and Storm Hangoff • Welding Technology • Oceanography and Meteorology OTC 4586 Gulf of Mexico Shallow Water Wave Heights 4587 Improved Wave Kinematics From Wave Staff Array Records 4588 Numerical Modelling of Extreme Wind- Driven Currents on the Norwegian Shelf 4589 Prediction of Weather Operating Windows for Offshore Drilling 4590 A Program to Develop Coastal Ocean OTC 4597 4598 4599 4600 4601 Recent Advances in the Welding Technology on the Fabrication of Jackup Drilling Rig MIG-Welding of Offshore Steels at Pressures From 1 to 30 Bar Recent Developments in High Toughness Welding Consumables for the Construction of Offshore Production Platforms Weld Root Embrittlement in Offshore Structural Steels Development of Fully Automated and Mobile Drilling and Support Vessels 4627 OTC 4602 4603 Development of a Novel Ice-Resistant Semi-Submersible Drilling Unit On the Motion Characteristics of Derrick Vessels in Waves During Lifting Operation 4604 Full-Scale Measurement Test on the New Semi-Submersible Polycastle 4605 Heave, Pitch and Roll Damping of Platforms and Ships Due to Positioning Thrusters 4606 Dynamic Positioning in Single-Point Moorings • Underwater Manifold Center OTC 4607 Overview of the Central Cormorant Underwater Manifold Centre Project (1974-1983) 4608 UMC/Design Review 4609 Landtesting the Underwater Manifold Centre for the Central Cormorant Field 4610 The UMC Control System 4611 Insulated Pipelines Between the Underwater Manifold Centre and Cormorant A Platform in the Northern North Sea Wave Loads on Structures OTC 4612 4613 4614 4615 4616 Ocean Transportation and Marine Terminals OTC 4617 4618 4619 4621 4626 Sources of Error in Determination of Reservoir Parameters From Seismic Data Pampo Linguado and Badejo Fields: Their Discoveries, Appraisals and Early Production Systems Instrumentation/Data Collection, Communication and Telemetry OTC 4628 4629 4630 4631 4632 4633 HF Message Data Terminal A Deepwater Vessel and Riser Monitoring Program An Acoustic Telemetry System for a Shallow-Water Under-lce Arctic Environment A New Concept for Remote Cycle Recovery in MF Radio Positioning Implementation and Testing of a Deep Water Correlation Velocity Sonar Toroidal Coupled Measurements While Drilling System Hydrodynamic Loading of Steel Structures Measured Dynamic Behavior of North Sea Gravity Platforms Under Extreme Environmental Conditions Design Wave and Design Force Estimation for Shallow Water Offshore Structures Effects of Wave-Current Interaction of the Design of Marine Structures A Comprehensive Sensitivity Analysis of the OTS Data • Wire and Synthetic Rope OTC 4634 Comparison of the Internal Friction Damping, Ultrasonic, and Acoustic Emission Nondestructive Evaluation Techniques for Application to Synthetic 4635 Cyclic Testing of Continuously Wetted Synthetic Fiber Ropes 4636 A Snap-Back Retained High Strength Kevlar Mooring Line 4637 Predicting Mooring System Fatigue Life by Probabilistic Methods 4638 The Tensile Fatigue of Wire Rope - A New Approach • Response of Compliant Structures A Critical Review of Transportation Analysis Procedure Expedient Navy SPM Fuel Terminal Parasitic Motions and Capsize Safety of a Swath-Type Ship 4620 Marine Operations in the Arctic - A New Development Finite Element Analysis of Marine Propellers Subjected to Propeller/Ice Interaction Forces T h u r s d a y Morning 9 : 0 0 to 11:30 a.m.

• Marine Geology and Geochemistry OTC 4622 Hydraulic Piston Coring • A New Era in Ocean Research 4623 A Rich Middle Triassic Source Rock in the Barents Sea Area 4624 Applications of Total Scanning Fluorescence to Exploration Geochemistry 4625 The IPOD Geological/Geophysical Data Bank OTC 4639 4640 4641 4642 4643 4644 Measured Motions of a North Sea Articulated Loading Platform Overall Dynamic Characteristics of Tension Leg Platforms Unsteady Aerodynamic Loading of a Tension Leg Platform in Extreme Conditions The Response of a TLP in Short Crested Waves Theory and Model Test Data for Tether Forces on Tensioned Buoyant Platforms Model Tests With a Single-Point Mooring System in Short-Crested Waves • Platform Design Issues OTC 4272 4645 4646 4647 4648 Offshore Facilities Weight, Area, and Cost Estimation Performed by Systems Computer Simulation Lateral Stability of Piles in Ungrouted Jacket Legs Comparison of Stress Distributions in a Simple Tubular Joint Using 3D Finite Element, Photoelastic and Strain Guage Techniques Stress Response and Fatigue Stress Cycle Distribution for a North Sea Steel Jacket Development of a Reliability Based Design Code for the Structure of Tension Leg Platforms

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