Deepwater Technology Supplement

August 1998 Vol. 219 No. 8 Contents This second issue of World Oil's supplemental


August 1998 Vol. 219 No. 8 Contents

	This second issue of World Oil's supplemental special report builds on the initial issue's (August 1997) introduction of basic concepts of the exciting new deepwater play. In this report, a central theme is the cooperative effort that U.S. and international operators have displayed in working among themselves, the service/supply sector and government agencies in meeting the complex technical, environmental and regulatory challenges. To that end, presentations herein contain discussions by the U.S. DOI's Minerals Management Service, Brazil's national oil company Petrobras, and the 21-company-sponsored DeepStar organization, in addition to features on key technology.
	— The Editors

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TECHNOLOGY UPDATE

Cooperative efforts needed for deepwater challenges
A panel in print: Carolita Kallaur – MMS Paul Hays – DeepStar Antonio de Agostini – Petrobras Ivor Forsdyde – Flow assurance Edward Heerema – Allseas

Petrobras deepwater technology update
Marcos Assayag, Jose Formigli, Sibele Assayag
Review of technical milestones, recent advances for ultra-deep water

Shallow water flow: A technology update
George H. Medley, Jr.
DeepStar's efforts to help operators understand and predict problems

Estimating shallow fracture gradients in the Gulf of Mexico
John W. Barker
A simplified method using good estimates of the overburden pressure

Subsea intervention requirements
James E. Chitwood
Industry data from DeepStar studies identify equipment / vessel needs

OPERATIONS REVIEW

Compliant towers find attractive niche in GOM deep water
Steve Will, John Simon
Engineering contractor and operator comment on design/applications

How Marathon is developing its deepwater Gulf of Mexico field
Lee Nirider, Allen Verret
Multi-well clustered manifold highlights Arnold subsea development

Methods tested to extend reach of blockage removal capability
B. F. Baugh, J. Illeman, J. B. Crawford, D. McStravick, W. Warren
DeepStar-sponsored test loop simulates 5-mile wax remediation

Engineers design new pigging devices to handle flowline wax
A. C. F. Lino, C. Mastrangelo, F. B. Pereira, M. G. F. M. Gomes
Dual-size pigs, new loops/equipment keep cold seabed lines working

Laybarge converted for service in deepwater West African fields
A. J. Borelli, D. Perinet
Review of pipelay techniques, conversion of derrick-laybarge Polaris