Controls on Cementation in a Chalk Reservoir

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In this study, we identify different controls on cementation in a chalk reservoir. Biot’s coefficient, a measure of cementation, stiffness and strength in porous rocks, is calculated from logging data (bulk density and sonic Pwave velocity). We show that Biot’s coefficient is correlated to the water saturation of the Kraka reservoir and is partly controlled by its stratigraphic sub-units. While the direct causal relationship between Biot’s coefficient and water saturation cannot be extended for Biot’s coefficient and porosity, a correlation is also identified between the two, implying that some degree of pore filling cementation occurred in Kraka (Alam, 2010). Lack of correlation between Biot’s coefficient and Gamma Ray (GR) indicates that the small amount of clay present is generally located in the pore space, thus not contributing to frame stiffness. While there was no compositional control on cementation via clay, we could infer that stratigraphy impacts on the diagenetic process.
Original languageEnglish
Title of host publicationProceedings of the 79th EAGE Conference and Exhibition 2017
Number of pages5
PublisherEuropean Association of Geoscientists and Engineers
Publication date2017
DOIs
Publication statusPublished - 2017
Event79th EAGE Conference & Exhibition 2017 - Paris, France
Duration: 12 Jun 201715 Jun 2017
Conference number: 79

Conference

Conference79th EAGE Conference & Exhibition 2017
Number79
CountryFrance
CityParis
Period12/06/201715/06/2017

Fingerprint Dive into the research topics of 'Controls on Cementation in a Chalk Reservoir'. Together they form a unique fingerprint.

Cite this