兴隆台潜山基岩油藏储层分类评价

郭子南

doi:10.3969/j.issn.1006-6535.2022.02.009

特种油气藏 >

2022 , Vol. 29 >Issue 2: 64 - 71

DOI: https://doi.org/10.3969/j.issn.1006-6535.2022.02.009

地质勘探

兴隆台潜山基岩油藏储层分类评价

郭子南

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中国石油辽河油田分公司,辽宁盘锦 124010

郭子南(1988—),男,工程师,2009年毕业于长江大学地质学专业,2016年毕业于东北石油大学地质工程专业,获硕士学位,现主要从事油田开发管理工作。

收稿日期: 2021-10-09

修回日期: 2022-01-10

网络出版日期: 2023-01-10

基金资助

中国石油科技重大专项“辽河油田千万吨持续稳产关键技术研究及应用”(2017E-1605)

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Classification and Evaluation of Bedrock Reservoirs in Xinglongtai Buried Hill

Guo Zinan

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PetroChina Liaohe Oilfield Company, Panjin, Liaoning 124010, China

Received date: 2021-10-09

Revised date: 2022-01-10

Online published: 2023-01-10

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摘要

基岩油藏储集空间以裂缝为主,裂缝发育段预测的准确程度决定了基岩油藏勘探开发的效果。针对基岩油藏储层非均质性强、裂缝发育主控因素多,导致储层预测难度大等问题,以辽河油田兴隆台潜山为例,综合分析钻井、录井、测井、地震等多种资料,识别裂缝发育段地质、地震、产能特征。结果表明,潜山内幕储层可划分为3类:酸性侵入岩、混合花岗岩为潜山内幕最优势岩性,混合片麻岩、中性侵入岩次之,片麻岩最差,基性侵入岩、角闪岩为非储层。酸性侵入岩、混合花岗岩的裂缝最为发育,且具有一定成层性,在裂缝识别基础上,准确刻画有利储层三维展布形态,有效提高了开发井储层钻遇率和投产效果。该研究结果可为国内外同类型油藏开发提供重要借鉴。

关键词： 基岩油藏; 裂缝; 储层分类评价; 储层预测; 兴隆台潜山

本文引用格式

郭子南 . 兴隆台潜山基岩油藏储层分类评价[J]. 特种油气藏, 2022 , 29(2) : 64 -71 . DOI: 10.3969/j.issn.1006-6535.2022.02.009

Abstract

The reservoir space of bedrock oil reservoir is dominated by fractures, and the effect of exploration and development depends on the precision of fracture-developed interval prediction. In view of much difficulties in reservoir prediction and other problems due to strong heterogeneity of bedrock reservoirs and multiple main controlling factors of fracture development, based on a study case of Xinglongtai buried hill in Liaohe Oilfield, this paper briefly analyzed comprehensively the drilling, logging, testing and seismic data, to identify the geological, seismic and productivity characteristics of fracture-developed zones. The results showed that the reservoirs of inner buried hill were divided into three types: acid intrusive rock and migmatitic granite were the most dominant lithology in the inner buried hill, with the most developed fractures and a certain stratification, followed by migmatitic gneiss and neutral intrusive roc, and next by gneiss. Basic intrusive rocks and amphibole were non-reservoirs.On the basis of fracture identification, the three-dimensional distribution pattern of favorable reservoirs was accurately characterized, which could effectively improve the reservoir penetration rate and production effect of development wells. The study results are an important reference for the development of similar reservoirs at home and abroad.

Key words： bedrock reservoir; fracture; reservoir classification and evaluation; reservoir prediction; Xinglongtai buried hill

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