TY - JOUR
T1 - Stratigraphy and sedimentology of middle Eocene Kumaza calcarenites "Member" in the Ku, Maloob, and Zaap oil fields, offshore Campeche, Mexico
AU - Ríos-López, Jaime J.
AU - Cantú-Chapa, Abelardo
PY - 2009
Y1 - 2009
N2 - The middle Eocene Ku, Maloob, and Zaap (Kumaza) Calcarenites "Member" is formally proposed to describe a calcareous unit represented by one to three, calcite-cemented packstone to grainstone calcarenites in a thick undescribed sequence of shales that occur in the subsurface of Campeche Shelf, southeastern Gulf of Mexico. These calcarenite bodies are here called units 1-A, 1-B, and 1-C; they are separated by one to two shale layers denominated as units Lu-1 and Lu-2. The type section is in the Maloob 97 well. The Kumaza Member has been studied using seismic data, core, chip samples, and log information from 57 wells drilled in the Kumaza fields in the Campeche Shelf. The Kumaza Member contains the most important reservoir rocks in this region and is mappable more than approximately 100 km2 (39 mi2). These calcarenite banks are here inferred to have originated on a shallow water platform and were later redeposited in deeper waters from a restricted area. The age of the rock units in the Kumaza Member is established from foraminifera, including Morozovella lenheri, Morozovella spinulosa, Tnincorotaloides rohri, Orbulinoides beckmanni, and Lepidocyclina (Polylepidina) antillea.
AB - The middle Eocene Ku, Maloob, and Zaap (Kumaza) Calcarenites "Member" is formally proposed to describe a calcareous unit represented by one to three, calcite-cemented packstone to grainstone calcarenites in a thick undescribed sequence of shales that occur in the subsurface of Campeche Shelf, southeastern Gulf of Mexico. These calcarenite bodies are here called units 1-A, 1-B, and 1-C; they are separated by one to two shale layers denominated as units Lu-1 and Lu-2. The type section is in the Maloob 97 well. The Kumaza Member has been studied using seismic data, core, chip samples, and log information from 57 wells drilled in the Kumaza fields in the Campeche Shelf. The Kumaza Member contains the most important reservoir rocks in this region and is mappable more than approximately 100 km2 (39 mi2). These calcarenite banks are here inferred to have originated on a shallow water platform and were later redeposited in deeper waters from a restricted area. The age of the rock units in the Kumaza Member is established from foraminifera, including Morozovella lenheri, Morozovella spinulosa, Tnincorotaloides rohri, Orbulinoides beckmanni, and Lepidocyclina (Polylepidina) antillea.
UR - http://www.scopus.com/inward/record.url?scp=79951543020&partnerID=8YFLogxK
U2 - 10.1306/13191087M903336
DO - 10.1306/13191087M903336
M3 - Artículo
SN - 0271-8529
SP - 257
EP - 277
JO - AAPG Memoir
JF - AAPG Memoir
IS - 90
ER -