长庆油田区中深层地热资源储量评价

doi:10.13809/j.cnki.cn32-1825/te.2023.06.005

油气藏评价与开发 ›› 2023, Vol. 13 ›› Issue (6): 749-756.doi: 10.13809/j.cnki.cn32-1825/te.2023.06.005

长庆油田区中深层地热资源储量评价

郭路^1,²(),夏岩^1,²,段晨阳^3,⁴,高文冰^1,²,陈凯^1,²,侯亚云^1,²,郭鸿^3,⁴

1.中国石油长庆油田公司勘探开发研究院，陕西西安，710018
2.低渗透油气田勘探开发国家工程实验室, 陕西西安 710018
3.陕西省地调院水工环地质调查中心，陕西西安，710068
4.陕西省城市地质与地下空间工程技术研究中心，陕西西安 710068

收稿日期:2023-03-13 发布日期:2024-01-03 出版日期:2023-12-26
作者简介:郭路（1978—），男，硕士，高级工程师，主要从事油气勘探与开发及地热资源评价与开发研究工作。地址：陕西省西安市未央区未央路151号长庆大厦，邮政编码：710018。E-mail：107786382@qq.com

Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield

GUO Lu^1,²(),XIA Yan^1,²,DUAN Chenyang^3,⁴,GAO Wenbing^1,²,CHEN Kai^1,²,HOU Yayun^1,²,GUO Hong^3,⁴

1. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710018, China
2. National Engineering Laboratory of Exploration and Development for Low Permeability Oil and Gas Fields; Xi'an, Shaanxi 710018, China
3. Shaanxi Hydrogeology Engineering Geology and Environment Geology Survey Center; Xi'an, Shaanxi 710068, China
4. Shaanxi Engineering Technology Research Center for Urban Geology and Underground Space, Xi'an, Shaanxi 710068, China

Received:2023-03-13 Online:2024-01-03 Published:2023-12-26

摘要/Abstract

摘要：

地热能作为一种稳定持续的清洁能源，未来将对中国能源结构转型及“双碳”目标实现发挥重要作用。鄂尔多斯盆地内地热资源丰富，但其储量及分布特征尚不明确，勘查开发程度总体较低。以长庆油田及周边区域为研究区，在成井资料的基础上，分析了区内地热地质特征，应用单元容积法估算了地热资源储量，并根据地热资源开发利用潜力进行分区。研究表明：区内地层构造相对简单，地温梯度介于2.2~3.0 ℃/hm，主要热储为传导型中生界砂岩热储，除洛河组外，其他热储层富水性较差；区内地热资源呈西高东低分布，总量为79.91×10¹⁷kJ，可采量为6.39×10¹⁷kJ，地热流体储量为2.47×10¹²m³；区内红柳沟镇—大水坑—姬村—山城区块、张沟门—流曲镇—三岔镇区块和庆阳市附近区块地热资源开发潜力较大，可以优先考虑将废弃油气井改造，建设中深层套管式换热系统进行开发利用。

关键词: 油田地热, 储层温度分布特征, 地热资源储量, 单元容积法, 废弃油气井改造

Abstract:

Geothermal energy, as a stable and sustainable clean energy source, is set to play a crucial role in China's energy structure transformation and the realization of the “double carbon” goal in the future. The Ordos Basin, noted for its abundant geothermal resources, still holds much untapped potential due to incomplete understanding of its reserves and distribution characteristics, and the relatively low level of exploration and development. Focusing on the Changqing Oilfield and its surrounding areas, the study delves into the geothermal geological characteristics using well data. It employs the unit volume method to estimate the geothermal resource reserves and conducts zoning based on the development and utilization potential of these resources. The study reveals that the formation structure in the area is relatively straightforward, with a general geothermal gradient of 2.2~3.0 ℃/hm. The primary thermal reservoir consists of conductive Mesozoic sandstone, while other thermal reservoirs, except for Luohe Formation, exhibit poor water yield. The geothermal resources in the region are distributed with higher concentrations in the western areas and lower in the east, with a total amount of 79.91 × 10¹⁷kJ. Among this a recoverable capacity of 6.39 × 10¹⁷kJ, and a geothermal fluid reserve of 2.47 × 10¹² m³ have been identified Blocks such as Hongliugou-Dashuikeng-Jicun-Shancheng block, Zhanggoumen-Liuquzhen-Sanchazhen block and the block near Qingyang exhibit significant potential for geothermal resource development. Therefore, the study recommends prioritizing the redevelopment of abandoned oil and gas wells, alongside the construction of medium and deep casing heat exchange systems. This approach would facilitate the effective development and utilization of geothermal resources in these areas.

Key words: oilfield geothermal, reservoir temperature distribution characteristics, geothermal resource reserves, unit volume method, renovation of abandoned oil and gas wells

中图分类号:

TE01

郭路,夏岩,段晨阳等. 长庆油田区中深层地热资源储量评价[J]. 油气藏评价与开发, 2023, 13(6): 749-756.

Lu GUO,Yan XIA,Chenyang DUAN, et al. Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield[J]. Petroleum Reservoir Evaluation and Development, 2023, 13(6): 749-756.

图/表 2

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长庆油田区中深层地热资源储量评价

Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield

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