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oa Microfacies and Petrographic study for Yamama formation in Ratawi field
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, First EAGE Workshop on Iraq - Hydrocarbon Exploration and Field Development, May 2012, cp-286-00028
- ISBN: 978-94-6282-050-0
Abstract
The available thin section examination for Yamama formation in Ratawi field, Six cyclic type microfacies have been recognized for Yamama Formation ( L. Beriassian - E. Valangenian ) at Ratawi-3 (Rt -3) and Ratawi-4 (Rt-4) Wells , Those are as Follows : Peloidal packstone, Algal wackestone - packstone , Oolitic- Peloidal grainstone, Bioclastic wackestone - packstone, foraminifera wackestone and mudstone microfacies , the latter has been divided into two submicrofacies: argillaceous lime mudstone and sparse fossiliferous lime mudstone. The horizontal extension of these microfacies can be identified by studying log Characters variation and thin sections.