The Key Parameters and Reservoir-forming Characteristic of Tight Oil of Dodsland Field Viking Formation

doi:10.11885/j.issn.1674-5086.2015.10.22.03

Abstract

Abstract: Tight oil is considered a realistically superior, unconventional oil and gas resource. However, systematic standards regarding various key parameters of tight oil such as estimated ultimate recovery (EUR), recoverable coefficient, and oil-gas resource abundance have not yet been effectively established in China. Standard values from mature tight oil calibration areas in other countries are often used as reference. This study conducts an in-depth analysis on a tight oil calibration area of the Viking Formation at Dodsland Field located in the Alberta Basin in western Canada in order to examine the oil-gas reservoir conditions and characteristics. The tight oil reserves and ultimate recovery of Viking Formation are evaluated using the Monte Carlo method and the EUR method, based on which the recoverable coefficient and oil-gas resource abundance are also determined. The results have shown that: 1) the tight oil reserves of the Viking Formation at Dodsland Field are 5.39×10⁸ t, of which the recoverable reserves are 0.79×10⁸ t; 2) according to the study results of the calibration area, the geological resource abundance is evaluated to be 37.799×104 t/km², of which the recoverable resource abundance is 5.565×104 t/km², and 3) the recoverable coefficient of the evaluation area is 14.7%. Based on the analysis of oil-gas geological characteristics of the tight reservoir at Viking Formation, a basic parameter system featuring tight oil-gas geological conditions can be constructed.

Key words: estimated ultimate recovery, recoverable coefficient, oil-gas resource abundance, tight oil, Monte-Carlo method

CLC Number:

TE121

ZHENG Min, WANG Wenguang, LI Peng, LI Jianzhong, WU Xiaozhi. The Key Parameters and Reservoir-forming Characteristic of Tight Oil of Dodsland Field Viking Formation[J]. 西南石油大学学报(自然科学版), 2017, 39(1): 53-62.

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