中国地质
中國地質
중국지질
CHINESE GEOLOGY
2014年
6期
2099-2109
,共11页
李攻科%王卫星%李宏%杨峰田%王林海%房万嶺
李攻科%王衛星%李宏%楊峰田%王林海%房萬嶺
리공과%왕위성%리굉%양봉전%왕림해%방만령
河北汤泉%地热田%地温场分布%控制因素
河北湯泉%地熱田%地溫場分佈%控製因素
하북탕천%지열전%지온장분포%공제인소
Tangquan of Hebei Province%geothermal field%distribution of geothermal field%controlling factors
汤泉位于河北省遵化市西北部,为山前丘陵地貌,地热资源丰富。本文对汤泉地热田内分布的诸多基岩热水井进行了钻孔测温,利用测温结果对该地热田地温场分布特征及控制因素进行了研究。研究发现:钻孔温度明显受地下水流的影响,绝大部分测温井表现为对流传热特征,个别表现为传导为主的传热特征;地温异常区域位于汤泉福泉宫和疗养院一带,异常中心呈两极分布,地热异常中心50 m埋深水温为51~54℃,100 m埋深水温可达60~67℃;该地热系统中地热水系地下水在深循环过程中,在正常的大地热流背景下被围岩逐渐加热所致;由花岗岩隔水底板构造形态所形成的隐伏盆地,构成了福泉宫至疗养院一带的蓄水构造;由于断裂构造切割花岗岩体,造成深部的热流沿断裂上升,混合并加热赋存于福泉宫至疗养院一带蓄水构造中的片麻岩裂隙水,形成该地段的地热异常现象;福泉宫地区和疗养院地区片麻岩含水层裂隙发育,使得深部热量能够快速到达浅部地层,并在浅部出现局部异常高温;汤泉地热田片麻岩热储层地热流体属于含岩盐地层溶滤的陆相沉积水,主要来源于大气降水。
湯泉位于河北省遵化市西北部,為山前丘陵地貌,地熱資源豐富。本文對湯泉地熱田內分佈的諸多基巖熱水井進行瞭鑽孔測溫,利用測溫結果對該地熱田地溫場分佈特徵及控製因素進行瞭研究。研究髮現:鑽孔溫度明顯受地下水流的影響,絕大部分測溫井錶現為對流傳熱特徵,箇彆錶現為傳導為主的傳熱特徵;地溫異常區域位于湯泉福泉宮和療養院一帶,異常中心呈兩極分佈,地熱異常中心50 m埋深水溫為51~54℃,100 m埋深水溫可達60~67℃;該地熱繫統中地熱水繫地下水在深循環過程中,在正常的大地熱流揹景下被圍巖逐漸加熱所緻;由花崗巖隔水底闆構造形態所形成的隱伏盆地,構成瞭福泉宮至療養院一帶的蓄水構造;由于斷裂構造切割花崗巖體,造成深部的熱流沿斷裂上升,混閤併加熱賦存于福泉宮至療養院一帶蓄水構造中的片痳巖裂隙水,形成該地段的地熱異常現象;福泉宮地區和療養院地區片痳巖含水層裂隙髮育,使得深部熱量能夠快速到達淺部地層,併在淺部齣現跼部異常高溫;湯泉地熱田片痳巖熱儲層地熱流體屬于含巖鹽地層溶濾的陸相沉積水,主要來源于大氣降水。
탕천위우하북성준화시서북부,위산전구릉지모,지열자원봉부。본문대탕천지열전내분포적제다기암열수정진행료찬공측온,이용측온결과대해지열전지온장분포특정급공제인소진행료연구。연구발현:찬공온도명현수지하수류적영향,절대부분측온정표현위대류전열특정,개별표현위전도위주적전열특정;지온이상구역위우탕천복천궁화요양원일대,이상중심정량겁분포,지열이상중심50 m매심수온위51~54℃,100 m매심수온가체60~67℃;해지열계통중지열수계지하수재심순배과정중,재정상적대지열류배경하피위암축점가열소치;유화강암격수저판구조형태소형성적은복분지,구성료복천궁지요양원일대적축수구조;유우단렬구조절할화강암체,조성심부적열류연단렬상승,혼합병가열부존우복천궁지요양원일대축수구조중적편마암렬극수,형성해지단적지열이상현상;복천궁지구화요양원지구편마암함수층렬극발육,사득심부열량능구쾌속도체천부지층,병재천부출현국부이상고온;탕천지열전편마암열저층지열류체속우함암염지층용려적륙상침적수,주요래원우대기강수。
Located in the northwest of Zunhua City of Hebei Province, Tangquan is characterized by hilly landscape and rich geothermal resources. In this paper, the authors studied the borehole data of many bedrock thermal wells (water wells) in the study area, and investigated the distribution characteristics and controlling factors of the geothermal field. The results show that borehole temperature is significantly affected by groundwater flow, and the vast majority of temperature wells are characterized by convective heat transfer, with a few temperature wells characterized dominantly by heat transfer conduction. The geothermal anomaly center of the study area is located in the area from Tangquan Fuquan Palace to the sanatorium, and the anomaly center exhibits bipolar distribution;the temperature of water at the depth of 50m in the geothermal anomaly center is about 51~54°C, and that at the depth of 100m is up to 60~67°C. The geothermal water of the geothermal system is caused by gradual heating action of surrounding rocks under the normal heat flow background in the process of deep circulation of groundwater. The water storage structure from Fuquan Palace to the sanitarium is formed by a buried basin with granite confining floor. Because faults cut through monolithic granite body, and cause the upward migration of the heat flux of the deep rock along the fault, whereas the heat flux is mixed with fissure water of the gneisses and is concentrated in the area from Fuquan Palace to the sanatorium. Because the gneiss fractures the aquifer in Fuquan Palace area and sanitarium area, the deep heat can quickly reach the shallow strata and give rise to local abnormal high temperature in the shallow part. The geothermal fluid belongs to continental sedimentary water that is formed in the strata with dissolved salt brine, and is mainly derived from meteoric water.