Skip to Main Content
Book Chapter

Case History 4 3-D Seismic Interpretation of an Upper Permian Gas Field in Northwest Germany

By
H. E. C. Swanenberg
H. E. C. Swanenberg
BEB Erdgas und Erdoel GmbH
Search for other works by this author on:
F. X. Fuehrer
F. X. Fuehrer
BEB Erdgas und Erdoel GmbH
Search for other works by this author on:
Published:
January 01, 2011

Abstract

In northwest Germany, sour gas is produced from Zechstein (Upper Permian) carbonates in a number of mainly medium-sized fields. A 3-D survey was acquired in 1985 to optimize drilling in the Goldenstedt field and some smaller adjacent fields (Figure 14-4-1). Recent appraisal drilling has proved significantly more potential than originally assumed in this area of complex structure and facies. Total reserves are currently estimated at 0.5 tcf of sour gas with an H2S content varying between 7 and 26%.

Structural definition and resolution of the target horizon at 3500 to 4000 m depth (corresponding to 2.2 to 2.4 sec two-way traveltime) is severely influenced by lateral velocity variations in the overburden, which complicated processing and interpretation of the survey. Despite nominally lower coverage than regular 2-D, the superiority of 3-D data significantly enhanced structural control. Some information on the reservoir was also obtained from reflection amplitudes. The 3-D data set thus revealed details of the tectono-depositional framework not observed on previous 2-D data.

You do not currently have access to this article.

Figures & Tables

Contents

AAPG Memoir

Interpretation of Three-Dimensional Seismic Data

Alistair R. Brown
Alistair R. Brown
Consulting Reservoir Geophysicist
Search for other works by this author on:
American Association of Petroleum Geologists
Volume
42
ISBN electronic:
9781629810034
Publication date:
January 01, 2011

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal