层状热储地热井权益保护半径计算探讨

刘帅; 冯守涛; 刘志涛; 黄松; 黄星; 朱利民

doi:10.19388/j.zgdzdc.2020.03.14

层状热储地热井权益保护半径计算探讨

刘帅^1,2,,
冯守涛^1,2, ,,
刘志涛^1,2,
黄松^1,2,
黄星^1,2,
朱利民^1,2

1.
山东省地勘局第二水文地质工程地质大队(山东省鲁北地质工程勘察院),德州 253015
2.
山东省地热清洁能源探测开发与回灌工程技术研究中心,德州 253015

基金项目: 山东省地质矿产勘查开发局“山东省地热系列标准编制(鲁地字[2019]34号,编号: KY201945)”项目资助

详细信息

作者简介:
刘帅(1989—),男,工程师,主要从事地热地质研究工作。Email: 332182068@qq.com。

通信作者:
冯守涛(1978—),男,高级工程师,主要从事地热地质研究工作。Email: 515631333@qq.com。

中图分类号: P314.2
计量
- 文章访问数: 283
- HTML全文浏览量: 0
- PDF下载量: 285
出版历程
- 收稿日期: 2019-08-14
- 修回日期: 2019-11-26
- 刊出日期: 2020-06-19

Discussion on the calculation of the rights protection radius of the geothermal well for stratified thermal reservoir

LIU Shuai^1,2,,
FENG Shoutao^1,2, ,,
LIU Zhitao^1,2,
HUANG Song^1,2,
HUANG Xing^1,2,
ZHU Limin^1,2

1.
No.2 Hydrogeology and Engineering Geology Brigade, Shandong Exploration Bureau of Geology and Mineral Resources ( Lubei Geo-engineering Exploration Institute), Dezhou 253072, China
2.
Geothermal Resources and Reinjection Research Center of Shandong Province, Dezhou 253072, China

摘要

摘要: 为保证地热资源的可持续开采,防止地热尾水回灌时发生热突破现象,文章系统整理了地热井权益保护半径的计算方法。通过理论推导,发现开采井权益保护半径的计算方法有3个不足之处: (1)公式中参数f定义为水比热与热储岩石比热的比值,存在缺陷; (2)热储回收率取值0.15,较为片面,不能代表不同岩性热储回收率的取值; (3)计算时间固定为36 500 d,较为片面,不适用于地热井间歇开采期。针对上述问题,该文重新给定了参数f的定义,并将热储回收率和开采时间以变量符号替代,可根据不同热储层和具体开采时间加以确定。通过研究不同回灌井权益保护半径计算方法的适用条件,提出应根据(β^-1-α)与3λ的大小关系选择不同的计算公式。对开采井和回灌井权益保护半径计算公式进行对比,发现开采井权益保护半径恒大于回灌井权益保护半径,并以德城区水文家园开采系统和回灌系统为例进行计算,验证了理论推导的结果。
- 层状热储 /
- 地热井权益保护半径 /
- 计算公式 /
- 对比分析
Abstract: In order to ensure the sustainable exploitation of geothermal resources and prevent the occurrence of thermal breakthrough during the process of geothermal water reinjection, the authors systematically summarized the calculation formulas of the rights protection radius of the geothermal well in this paper. Three shortcomings in the calculation method of the rights protection radius of the geothermal well were identified through theoretical derivation. (1) The parameter f, which is defined as the ratio of the specific heat of water to that of thermal reservoir rocks, is defective. (2) The value of the thermal reservoir recovery rate defined as 0.15 is relatively unilateral, which is not applicable for geothermal wells with different lithology. (3) The calculation time is fixed as 36 500 d, which is not appropriate for geothermal wells with interval development. Based on the problems above, the authors redefined the parameter f and used variables to replace the previous thermal reservoir recovery rate and exploitation time, which can be identified according to different thermal reservoirs and specific exploitation time. By comparison of the applicable conditions of different calculation formulas of the rights protection radius of the geothermal well, the authors proposed that different calaulation formuas should be chosen based on the relationship of the size between β^-1-α and 3λ. And by comparison of the rights protection radius calculation formulas for the mining well and the recharge well, it is found that the rights protection radius of the mining well is always bigger than that of the recharge well. Finally, Shuiwen residential area of Decheng district was taken as an example to verfity the theoretical results.
- stratified thermal reservoir /
- rights protection radius of the geothermal well /
- calculation formula /
- comparative analysis

HTML全文

参考文献(15)

[1]	崔煜烽,张杰,殷焘,等.鲁东地区地热资源分布规律及勘查定井方法探讨[J].中国地质调查,2018,5(2):86-92.
[2]	Kang F X.Sustainable yield and its assessment of geothermal reservoirs in China[J].GRC Trans,2013,37(4):843-852.
[3]	杨询昌,康凤新,王学鹏,等.砂岩孔隙热储地温场水化学场特征及地热水富集机理——鲁北馆陶组热储典型案例[J].地质学报,2019,93(3):738-750.
[4]	王浩,赵季初.鲁西北平原区地热资源开发对地下水环境的影响[J].山东国土资源,2015,31(7):36-39.
[5]	国家发展和改革委员会,国家能源局,国土资源部.地热能开发利用"十三五"规划[EB/OL].(2017-01-23).http://www.nea.gov.cn/136035635_14863708180701n.pdf.
[6]	He M C,Liu B,Yao L H,et al.Study on the theory of seepage field for geothermal single well reinjection[J].Acta Energ Solar Sin,2003,24(2):197-201.
[7]	朱家玲,朱晓明,雷海燕.地热回灌井间压差补偿对回灌效率影响的分析[J].太阳能学报,2012,33(1):56-62.
[8]	中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 11615—2010地热资源地质勘查规范[S].北京:中国标准出版社,2010.
[9]	刘志明,梁继运,刘春雷.地热回灌条件下流体可采量评价方法[J].地下水,2016,38(2):61-63.
[10]	刘志明,王贵玲,蔺文静.地热回灌条件下单井开采权益保护半径的计算[J].地下水,2014,36(6):72,75.
[11]	Gringarten A C,Sauty J P.A theoretical study of heat extraction from aquifers with uniform regional flow[J].J Geophys Res,1975,80(35):4956-4962.
[12]	中华人民共和国地质矿产部.DZ 40—85地热资源评价方法[S].北京:中国标准出版社,1992.
[13]	王彦俊,王贞国,王岩,等.德州市地热资源开发与保护[J].山东国土资源,2005,21(5):31-35.
[14]	张平平,王秀芹.回灌水温对砂岩热储回灌效果的影响分析——以德州市地热田馆陶组热储为例[J].山东国土资源,2015,31(6):64-67.
[15]	周训,陈明佑,赵维明.深层地下热水钻井井内动水位升高值的计算[J].勘察科学技术,2000(5):33-35.

施引文献(4)

期刊类型引用(3)

1.	李皓东，朱俊宇，王辉，刘文辉，刘行祥，李松. 兰州彭家坪砂岩型热储地热尾水回灌试验结果分析与启示. 科学技术与工程. 2025(11): 4438-4447 . 百度学术
2.	甄彦龙，李迎朋，崔佳星，李锋，刘小夕. “双碳”背景下河北省海岛地热综合利用与关键技术研究. 能源与环保. 2024(08): 150-158+165 . 百度学术
3.	段晓飞，康凤新，吴晓华，王明珠，杨亚宾，战静华，陈京鹏. 基于采灌均衡模拟的砂岩热储合理采灌井距计算方法. 地质科技通报. 2024(05): 170-180 . 百度学术