海上油藏流场评价方法

doi:10.3969/j.issn.1006-6535.2021.04.018

特种油气藏 ›› 2021, Vol. 28 ›› Issue (4): 129-135.DOI: 10.3969/j.issn.1006-6535.2021.04.018

海上油藏流场评价方法

蔡晖¹, 刘英宪¹, 马奎前¹, 姜瑞忠², 张福蕾²

1.中海石油中国有限公司天津分公司,天津 300459;
2.中国石油大学华东,山东青岛 266580

收稿日期:2020-07-02 修回日期:2021-05-31 发布日期:2022-02-18
通讯作者: 马奎前(1971—),男,教授级高级工程师,1997年毕业于石油大学(华东)石油工程专业,现主要从事海上油气田开发方面的研究工作。
作者简介:蔡晖(1979—),女,高级工程师,1999年毕业于大庆石油学院石油工程专业,2002年毕业于石油大学(北京)油气田开发工程专业,获硕士学位,现主要从事海上油气田开发方面的工作。
基金资助:
中海石油(中国)有限公司科技项目“渤海双高油田挖潜关键技术研究”(YXKY-2018-TJ-04)

Study on Evaluation Method of Flow Field in Offshore Oil Reservoirs

Cai Hui¹, Liu Yingxian¹, Ma Kuiqian¹, Jiang Ruizhong², Zhang Fulei²

1. CNOOC Tianjin Branch, Tianjin 300459, China;
2. China University of Petroleum East China, Qingdao, Shandong 266580, China

Received:2020-07-02 Revised:2021-05-31 Published:2022-02-18

摘要/Abstract

摘要： 针对海上油藏流场优势通道及驱替的不均匀性评价难的问题,该文利用基于海上高含水阶段油田评价的新参数,分析水分流量关系曲线规律,得到水分流量、动用系数和通量强度3个用于表征海上油藏流场的参数。通过特征分级点法对流场进行分级,由通量强度与水分流量关系曲线的线性段特征、油水相渗比值半对数曲线直线段上拐点确定3个特征分级点,建立起“三点四级”指标流场表征法。将研究成果应用于海上油藏的流场评价中,结果表明:3个分级点水分流量为22%、73%和90%时能够分别对流场的潜力情况、动用状况和优势与否给出明确的界限。该流场评价方法为海上油田后期的流场重构和开发效果改善具有一定的理论指导意义。

关键词: 流场表征, 评价方法, 高含水阶段海上油藏, 特征分级点

Abstract: Aim to the difficulties during the evaluation of favourable channels and displacing heterogeneity, namely water fractional flow, development coefficient and flux intensity were obtained to characterize the flow field of offshore oil reservoir, by the law of the water fractional flow relationship curve, in combination with new parameters based on the evaluation of offshore oil oilfields in the high water-cut stage. The flow field was classified with feature classification point method. Three feature classification points were determined by the characteristics of the linear section of the relationship curve of flux intensity and water flow rate and the inflection points on the linear section of the semi-logarithmic curve of the oil-water permeability ratio, and a "three-point and four-level" index flow field characterization method was established. The study results were applied to the flow field evaluation of offshore oil reservoirs, and the results showed that when the water fractional flow of the three classification points was 22%, 73% and 90%, respectively, the potential, development status and dominance of the flow field can be clearly defined. This flow field evaluation method is of certain theoretical guiding significance for the flow field reconstruction and development effect improvement in the later stage of offshore oilfields.

Key words: flow field characterization, evaluation method, offshore oil reservoir in high water-cut stage, feature classification point

中图分类号:

TE349

蔡晖, 刘英宪, 马奎前, 姜瑞忠, 张福蕾. 海上油藏流场评价方法[J]. 特种油气藏, 2021, 28(4): 129-135.

Cai Hui, Liu Yingxian, Ma Kuiqian, Jiang Ruizhong, Zhang Fulei. Study on Evaluation Method of Flow Field in Offshore Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2021, 28(4): 129-135.

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海上油藏流场评价方法

Study on Evaluation Method of Flow Field in Offshore Oil Reservoirs

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