An Analysis on Performance Characteristics of the Tight Oil Reservoir

doi:10.11885/j.issn.1674-5086.2013.06.08.12

Abstract

Abstract:

Generally，there are natural fractures of varied sizes distributed in the tight oil reservoir. According to the size and
density of fractures and the porosity and permeability of matrix，the tight oil reservoirs could be classified into 4 types：the
Porous Type，the Fracture-porous type，the Porous-fracture type and the Fracture-type. This paper is mainly focused on the
performance characteristics analysis of the different types. The performance curves of different types exhibit different decline
trends. Applying Eclipse software into the tight oil reservoir simulation，we built 4 different models to study their performance.
Based on the results analysis，the fracture permeability and matrix porosity is proved to be very key parameters to the initial
production rate and the decline rate. Thus，fractures are the necessary conditions to get a high initial production rate and the
matrix with considerable storage capacity is the necessary conditions to get a high cumulative production.

Key words: tight oil, dual porosity dual permeability, dual porosity single permeability, fracture-porous type, porous-fracture
type

CLC Number:

TE33.1

Peng Hui1*, Liu Yuzhang1, Ran Qiquan1, Wang Xin2, Tong Min1. An Analysis on Performance Characteristics of the Tight Oil Reservoir[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.06.08.12.

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