عنوان به زبان ديگر :
Source of Cement in the Great Oolite Reservoir, Storrington Oil Field., Weald Basin., South of England
چكيده لاتين :
the source of cement in oilfields IS critical to the prediction of the distribution of
cements in the reservoirs and also prediction of reservoir quality. יThe source of
.nincral iorming cements has been determined for the Storrington oolitic
carbonate reservoir (Middle Jurassic Great Oolite Formation, Weald Basin,
onshore UK) using a combination of petrography, electron microscopy, tluid
inclusion analysis, atomic absorption spectrometry and stable isotopes analysis
techniques. Petrographic interpretations revealed that ferroan calcite cement is the
illest significant diagenetic mineral and has a major control on reservoir quality.
The preferred conclusion frorn this study is that the Great Oolite reservoir has
acted as closed system during early diagenesis and has performed as open system
during burial diagenesis. Also, elements for burial diagenetic cements have been
sourced from neighbouring formation. Finally, stable isotopes analysis
demonstrated that the dominant source of carbon in the Great Oolite reservoir is
marine and is derived from the rock itself
