为深入贯彻落实绿色勘查理念,按照雄安新区《容东片区控制性详细规划》工作安排,拟采用中深层地热作为基础热源,联合其他绿色能源对片区内的建筑进行集中供热.雄安新区容东片区安居工程配套供热(冷)工程中深层地热项目(第二标段)拟设8眼地热井,包括监测井1眼,开采井4眼,回灌井3眼,其中开采井和回灌井均为定向井.本文主要从项目井区、地质状况、井身结构及钻探施工情况等方面进行了介绍;总结了取得的钻探成果,包括抽水试验成果、热储层水化学特征和施工质量;提炼出容东片区中深层地热定向井施工技术;完成了目的层抽水试验,获取了地层水文、水量等参数,为容东片区地热资源开发利用提供了资料.
In order to deeply implement the concept of green survey,according to the working arrangement of"Rongdong Zone Control Detailed Planning"in Xiong'an new area,it is proposed to adopt medium to depth geothermal as the basic heat source,and combine with other green energy sources to centrally supply heat to the buildings in this area.The medium to deep geo-thermal project(the second bidding section)for the subsidized housing supporting heating(cooling)engineering at Rongdong zone in Xiong'an new area is proposed to set up 8 geothermal wells,including 1 monitoring well,4 extraction wells and 3 re-charge wells,of which the extraction wells and the recharge wells are all directional wells.This paper mainly introduces the project well area,geological condition,well structure and drilling construction,summarizes the drilling results obtained,inclu-ding pumping test results,hydrochemical characteristics of thermal reservoir and construction quality,refines the drilling tech-nology of middle to deep geothermal directional wells at Rongdong zone,completes the pumping test for destination layer,ob-tains the formation hydrology,water amount and other parameters,which can provide reference for the development and utili-zation of geothermal resources at Rongdong zone.