Water-rock interaction and hydraulic mobility of formation water at the Jujo-Tecominoacán oil field,Southeast Mexico

摘要：

Formation waters from the Jujo-Tecominoacán oil field are remnants of Late Pleistocene to Early Holocene infiltration processes that reached reservoir depths of 5,200 to 6,200 m b.s.l., as reflected by 14C values from 2.48 ±0.08 to 31.86 ± 0.23 pmC. Several groundwater bodies with heterogeneous chemical and isotopic pattern are found to be interlayered between hydrocarbon zones. Maximum TDS concentrafons of 385 g/L are derived by the evaporation of seawater prior to infiltration, reaching saturation conditions for epsomite. Dolomitization of the carbonate reservoir, illitization and precipitation of pyrite and ankerite altered significantly the primary composition of basinal brine. Linear chemical and isotopic mixing trends of formation water from different reservoir sections postulate the enhanced hydraulic communication between groundwater bodies, probably accelerated by the artificial extraction of hydrocarbon resources.

作者: P.Birkle B.Martínez García C.M.Milland Padrón

作者单位: Instituto de Investigaciones Eléctricas,Gerencia de Geotermia, Cuernavaca, Morelos,México PEMEX Exploración y Producción, Región Sur, Activo Integral Bellota-Jujo, Dise(n)o de Explotación,Ca

会议类型: 国际会议

会议名称: 第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)

会议地点: 昆明

会议语种:英文

页码: 193-197

在线出版日期: 2007-07-31（万方平台首次上网日期，不代表论文的发表时间）