No abstract

No abstract

This paper was preparad for presentation at the Offshors Technology Confarance hekl in Houston, Texaa M L@ 1999.TIILS paperwsssekted for presenfsfion lV the OTC Prqrsm Comnilfee following rwiew G4information mntained in an atid subm"tiecf by the aufhoqs). Wntents of the PVC% ss Pr-nf4 haw nb een reubwed IV ttm Offstmre Tedmolcgy Ccmkmnca and am subject to scmcfian by the author(s). The msteriaãs presented, does not nes-assarily mflecf any pcdion G4the Offshore %chnolcgy Conference or its officem. Elecfronis rs?pmducfkm,distribution, or sfotage of any pat c+this psper for mmmercial purposes wfthcuf the wdtten ccmsenf d the Offshore Technokgy Conference is prohibted. l%rm"eeion to reproduce in prirt is rsstrkted to en abstrad c+ not mere than S03 wrdq illusfmficmmay net ba mpisd. The abstract nwsf contain sompicuous aciawwledgmenf of where and ty whom the paper was presented. ABSTRACTThe Douala Basin is a divergent basin along the West African coast whIeh developed by rifting between Aftiea and South America during break-up of Gondwanaland. This rifting rsuited in the formation of a break-up unconformity near the beginning of Albian time. Biostratigraphic analysis of the Kribi R-1, Kribi N-1 and Campo R-1 wells indicates that the b-p unconformity developed approximately 107.5 million years ago. Although the break-up unconformity developed by teetonic processes, erosion along it was increased by sea-level fall. Wells which penetrate thk unconformity exhibit thick sequenees of non-marine sands. Production in the Sanaga Sud Field oeeurs in these strata. Seismic interpretation is mostly in the Late Cretaceus to Pliocene strata. Late Cretaeeous stmta are relatively tldck in the central and northern portion of the Douala Basin and thin near stmctmal highs in the vicinity of the IQibi R-1, Kribi N-1, KribI B-1 and Campo R-1 wells. Seismic data indicates that strata thicken to the north. The Late Cketaceous sequences identi.fkd are the 98. 0,94.0, 90.0, 80.0, 77.5,75.0, 71.0 and 68.0 Ma boundaries. Deposition occurred in outer neritic water depths over much of the basin including the area near the KribI R-1 and Campo R-1 wells. The sediments in the onshore Kwa-Kwa 2X and offshore Yxsoukou Marine-1 wells are interpreted as slope deposition. This indicates that the basin extended for some distance into onshore Camerccm along au embayment separated from the offshore Niger delta by the Cameroon Volcanic Line.-"

Seismic data have often played a significant, and sometimes dominant role in previous Bob F. Perkins conferences, such as in last year's conference on seismic geomorphology. Nevertheless, the last conference to address the role of seismic attributes was held in 1996. The advancement in algorithm development, 3D multiattribute visualization, interpretation workflows, and more quantitative reservoir characterization during this 15-year interval has been astounding. This year's conference, "Attributes: New Views on Seismic Imaging-Their Use in Exploration and Production," gathers some of the world's foremost attribute software developers, service providers, and oil-company practitioners under one roof at the same time.The Perkins conference provides a unique opportunity for such an attribute forum. It is small enough, with only one session at a time, to provide a great deal of interaction, particularly at meals and breaks. Yet it is large enough to allow the participation and input of the greater seismic interpretation community. You will find the quality and technical content of the papers provide the feel of a "technical workshop," whereby experts can compare and contrast state-of-the-art innovations with their expert peer group. However, we have instructed the authors that the intended GCSSEPM audience will be primarily practicing geologists and geophysicists, and to pitch their papers and presentations appropri-7 3 7 xiv

No abstract