Enhancing ultimate recovery in mature carbonate reservoirs by managing uncertainties in stimulation design

Albertus Retnanto, Abraham Ryan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Carbonate stimulation design constitutes many uncertainties and challenges. Reservoir heterogeneity, in addition to the formation damage, complicates the attempt to understand matrix acidizing stimulation design. Without proper reservoir characterization and modeling, stimulation treatment uncertainty cannot be predicted nor evaluated, which poses difficulties for treatment evaluation and improvement processes. In practice, complete and representative data necessary for treatment design may not available. In a mature carbonate reservoir, the degree of uncertainties is increasing significantly. The additional uncertainties come from the different hydrocarbon recovery methods across the formation which leads to different resistance to flow for the stimulation fluid that sometimes is not taken into account in the stimulation design. The increasing number of mature carbonates reservoirs in the world calls for a methodology to evaluate the uncertainties in mature carbonate formations that consider recovery uncertainties, pressure uncertainties, and formation damage uncertainties. As operators are developing hydrocarbon potential in more complex carbonate formations, conventional matrix acidizing may not be the best treatment to achieve good production results. This paper will present the workflow that could optimize carbonate stimulation design, taking into account the uncertainties in mature fields. Stimulation strategy should not only be based on the knowledge of petrophysical data, but also on other key parameters that influence design. Several scenarios for those uncertainties will be simulated. The outcomes of this simulation scenario will be proposed for stimulation fluid selection and optimization.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - International Petroleum Technology Conference 2014, IPTC 2014 - Innovation and Collaboration: Keys to Affordable Energy
PublisherSociety of Petroleum Engineers
Pages2885-2898
Number of pages14
Volume4
ISBN (Electronic)9781634398350
Publication statusPublished - 2014
Externally publishedYes
EventInternational Petroleum Technology Conference 2014 - Innovation and Collaboration: Keys to Affordable Energy, IPTC 2014 - Kuala Lumpur, Malaysia
Duration: 10 Dec 201412 Dec 2014

Other

OtherInternational Petroleum Technology Conference 2014 - Innovation and Collaboration: Keys to Affordable Energy, IPTC 2014
CountryMalaysia
CityKuala Lumpur
Period10/12/1412/12/14

    Fingerprint

ASJC Scopus subject areas

  • Geochemistry and Petrology

Cite this

Retnanto, A., & Ryan, A. (2014). Enhancing ultimate recovery in mature carbonate reservoirs by managing uncertainties in stimulation design. In Society of Petroleum Engineers - International Petroleum Technology Conference 2014, IPTC 2014 - Innovation and Collaboration: Keys to Affordable Energy (Vol. 4, pp. 2885-2898). Society of Petroleum Engineers.