Reservoir Evaluation

Comprehensive evaluation for effectiveness of complex carbonate reservoir: A case from Tishirine Oilfield in Syria

  • Jun JIA
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  • 1.School of Resource and Environmental Engineering, Mianyang Teachers’ College, Mianyang, Sichuan 621006, China;
    2.School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received date: 2019-04-16

  Online published: 2020-04-28

Abstract

Reservoir effectiveness is a key factor restricting the efficient development and also one of the difficulties in reservoir evaluation. Formation C and J of the T oilfield in Syria are carbonate fractured reservoirs. The diversified storing space, complex lithology, pore structure and other reservoir characteristics lead to high porosity and low permeability of matrix pore. Although fractures formed by tectonic action have improved reservoir’s seepage capacity significantly, there still have great ambiguity in fracture effectiveness well logging interpretation. It is urgent to establish a criterion for the effectiveness of matrix-fracture complex carbonate reservoirs. According to the above problem, geology and rock physics analysis such as core observation, scanning electron microscopy(SEM) and mercury injection data are used to calibrate well logging. In combination with multivariate statistical method, the comprehensive evaluation standard of reservoir effectiveness, including the lithology, physical properties, pore structure characteristics, logging response and reservoir parameters like reservoir quality factor and flow index of different reservoir storing space, has been established. This study provides technical support for comprehensive evaluation and efficient development of such complex carbonate reservoirs.

Cite this article

Jun JIA . Comprehensive evaluation for effectiveness of complex carbonate reservoir: A case from Tishirine Oilfield in Syria[J]. Petroleum Reservoir Evaluation and Development, 2020 , 10(2) : 30 -36 . DOI: 10.13809/j.cnki.cn32-1825/te.2020.02.005

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