Full Content is available to subscribers

Subscribe/Learn More  >

Vertical and Horizontal Migration of Gas Through the Marine Sediments of the Gulf of Mexico

[+] Author Affiliations
Raúl Nava Castro

Fugro Chance de México, Cd. del Carmen, CAM, Mexico

Wilbert E. Koh Cambranis

PEMEX, Cd. del Carmen, CAM, Mexico

Paul Baerenwald

Fugro GeoServices Inc., Houston, TX

Paper No. OMAE2011-49073, pp. 779-788; 10 pages
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 7: CFD and VIV; Offshore Geotechnics
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4439-7
  • Copyright © 2011 by ASME


Since petroleum exploitation began activity in the Gulf of Mexico, geophysical studies have been carried out to detect geological hazards and features, which can affect the design or installation of platforms or pipelines. In some of the studies it was noted that shallow gas accumulations increase their size and number through time. This paper presents a comparison of three geophysical studies which were carried out in 1978 [1], 1997 [2] and 2002 [3]. The comparison is complemented with results obtained from geotechnical studies performed in 2002 [4–7] to evaluate the influence of the gas on the properties of the foundation zone soils. In the 1997 geophysical study, there were more detected gas accumulations than in 1978. The existing gas accumulations (originally detected in 1978) also increased in size over the nineteen-year period. The same phenomenon was also identified in the geophysical study of 2002, when the results were compared with the study performed in 1997, it appeared that the shallow gas accumulations increased both their size and number considerably over a period of only five years. The only explanation found for this phenomenon was that gas migrates vertically from the reservoir along a major geological fault that crosses the entire area, forming a chimney. Once the gas reached the shallow strata, the gas spread laterally, saturating the area around the geological fault with gas. Sand Strata A, B, C and D (identified in the geotechnical investigation) were the primary gas-charged strata, that is, the gas migrates laterally within these strata until encountering soils that can not confine the pressure developed by the gas accumulation [8] or until the gas finds a route to escape upwards. As a consequence, a sudden or gradual emanation occurs, altering the initial characteristics of the foundation zone soils and/or possibly damaging marine structures, resulting in economic loss.

Copyright © 2011 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In