物探化探计算技术
物探化探計算技術
물탐화탐계산기술
COMPUTING TECHNIQUES FOR GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2010年
1期
31-34
,共4页
地热田%电阻率%温度
地熱田%電阻率%溫度
지열전%전조솔%온도
geothermal field%resistivity%temperature
电阻率方法是众多地热田勘探方法中比较好的一种.用电阻率方法勘查不仅能够探测地层埋深及破碎状况,还能预测热储构造的含水性.热储构造电阻率主要取决于岩层的岩性、孔隙度、地下水矿化度及所处环境温度,当地热田勘查范围较小时,深部地层的岩性、孔隙度、地下水矿化度基本可以假定不变,因此热储构造电阻率只和温度相关.这里主要探讨地层温度和地层电阻率之间的关系,进而提出电阻率参数预测地热田深部温度方法技术,这对当前地热田勘查具有重要意义.
電阻率方法是衆多地熱田勘探方法中比較好的一種.用電阻率方法勘查不僅能夠探測地層埋深及破碎狀況,還能預測熱儲構造的含水性.熱儲構造電阻率主要取決于巖層的巖性、孔隙度、地下水礦化度及所處環境溫度,噹地熱田勘查範圍較小時,深部地層的巖性、孔隙度、地下水礦化度基本可以假定不變,因此熱儲構造電阻率隻和溫度相關.這裏主要探討地層溫度和地層電阻率之間的關繫,進而提齣電阻率參數預測地熱田深部溫度方法技術,這對噹前地熱田勘查具有重要意義.
전조솔방법시음다지열전감탐방법중비교호적일충.용전조솔방법감사불부능구탐측지층매심급파쇄상황,환능예측열저구조적함수성.열저구조전조솔주요취결우암층적암성、공극도、지하수광화도급소처배경온도,당지열전감사범위교소시,심부지층적암성、공극도、지하수광화도기본가이가정불변,인차열저구조전조솔지화온도상관.저리주요탐토지층온도화지층전조솔지간적관계,진이제출전조솔삼수예측지열전심부온도방법기술,저대당전지열전감사구유중요의의.
Resistivity exploration is a better survey method among the lots of geothermal exploration methods. Resistivity exploration can not only explore the depth and the fragmentation of the stratum but also predict the hydrous property of the structure that contains thermal. The resistivity of the structures that contains thermal is mainly decided by the rock property, the gap extent of the stratum, the mineralization degree of the groundwater, and the ambient temperature of it. While the exploration scale on geothermal field is not so large, we can assume the rock property, gap extent and degree of mineralize of the deep stratum are constant parameters, so the resistivity of the structure that contains thermal is only correlated with the temperature of it. The article discusses the relation between the temperature and resistivity of the stratum, then put forward the technology using resistivity parameter to predict the temperature of the deep geothermal field, which nowadays has significant meaning to the geothermal exploration.