The invention relates to a deep geothermal conduction root built with heat conduction agent, by the raw materials with the following weight percentage: well prepared superfine cement 15 ~ 25%, 3 ~ 5% kaolin, bentonite 1 ~ 3%, 1 ~ 3% of calcium sulfate, heat conducting silica gel of 2 ~ 5%, 8 ~ 15% carbon fiber, water 30 ~ 50%, 2 ~ 5% styrene butadiene rubber latex, graphite from 10 to 18%; the preparation method is: room temperature, the wells superfine cement and carbon fiber and graphite are fully mixed, and then obtain a mixture; the other components are added in the mixture, stirring constantly, obtained after mixing evenly. Heat transfer agent of the invention can be directly downward into the surface casing into the preparation, separation of underground collapsing in loose terrain; the preparation method is simple, easy to operate; and according to several compositions of the present invention into the thermal conduction agent not only has significant effect, but also has strong adhesion, good crack resistance, especially with deep geothermal conduction the root system using heat conduction effect is more significant.
【技术实现步骤摘要】
一种深层地热传导根系建造用导热剂及其制备方法
本专利技术属于地热传导
,具体涉及一种深层地热传导根系建造用导热剂及其制备方法。
技术介绍
干热岩(HDR),也称增强型地热系统(EGS),或称工程型地热系统,是一般温度大于200℃,埋深数千米,内部不存在流体或仅有少量地下流体的高温岩体。开发干热岩资源国际上普遍采用的是双井压裂渗透回灌法,其原理是:从地表往干热岩中打一眼井(注入井),封闭井孔后向井中高压注入温度较低的水,产生了非常高的压力;在岩体致密无裂隙的情况下,高压水会使岩体大致垂直最小地应力的方向产生许多裂缝;若岩体中本来就有少量天然节理,这些高压水使之扩充成更大的裂缝;随着低温水的不断注入,裂缝不断增加、扩大,并相互连通,最终形成一个大致呈面状的人工干热岩热储构造;在距注入井合理的位置处钻几口井并贯通人工热储构造,这些井用来回收高温水、汽,称之为生产井;注入的水沿着裂隙运动并与周边的岩石发生热交换,产生了温度高达200~300℃的高温高压水或水汽混合物;从贯通人工热储构造的生产井中提取高温蒸汽,用于地热发电和综合利用;利用之后的温水又通过注入井回灌到干 ...
【技术保护点】
一种深层地热传导根系建造用导热剂,其特征在于:由以下重量百分比的原料制备而成:油井超细水泥15~25%,高岭土3~5%,膨润土1~3%,硫酸钙1~3%,导热硅胶2~5%,碳素纤维8~15%,水30~50%,丁苯橡胶乳液2~5%,石墨10~18%。
【技术特征摘要】
1.一种深层地热传导根系建造用导热剂,其特征在于:由以下重量百分比的原料制备而成:油井超细水泥15~25%,高岭土3~5%,膨润土1~3%,硫酸钙1~3%,导热硅胶2~5%,碳素纤维8~15%,水30~50%,丁苯橡胶乳液2~5%,石墨10~18%。2.根据权利要求1所述的深层地热传导根系建造用导热剂,其特征在于:由以下重量百分比的原料制备而成:油井超细水泥19%,高岭土4%,膨润土2%...
【专利技术属性】
技术研发人员:徐冰钦,罗智星,
申请(专利权)人:西安浩沃新能源有限公司,
类型:发明
国别省市:陕西,61
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