大深度钻孔测量仪器隔热复合保温承压管设计关键技术

Key technology for design of compound insulation pressure-resistant housing of broehole measuring instrument for deep drilling

摘要:

本文介绍的“大深度隔热复合保温承压管”主要解决超高温高压环境钻孔测量仪器耐高温高压问题。任务目标是攻克超高温高压环境下真空绝热保温、高水压密封分析校正等设计关键技术，研制出具有自主知识产权的大深度隔热复合保温承压管，使用环境温度可达260 ℃，环境压力130 MPa，保持真空绝热保温瓶内8 h温升<80 ℃，通过在高温地热能钻探工程、干热岩钻探工程、科学钻探工程、深部矿产资源勘探和深部油气资源勘探等工程中的应用，拓展应用领域，进一步提升仪器性能指标。试制的承压外管及保温瓶进行了高温高压试验，试验结果表明承压外管高温高压同时作用环境下工作是可靠的，保温瓶的保温能力亦能达到技术要求，证明该设计方法是合理的。

Abstract:

The compound insulation pressure-resistant housing for deep drilling is designed mainly to solve the problem with the survey tool in extremely heat temperature high pressure environment. The mission target is to overrun extremely high pressure environment to descend vacuum unique hot heat preservation， high the water pressure seal completely analysis to correct etc. design key technique， develop to submit to have independence intelligent property right of the big depth separate hot compound the heat preservation accept to press tube， use the environment temperature can reach to 260 ℃ ， the environment pressure 130 MPa， keep vacuum unique hot the 8 h in the thermos bottle<80℃， pass the engineering Application in the subterranean heat the ability drill explore， dry heat rock drill explore， science drill explore， deeply the department the mineral resources investigate explore and deeply the department the oil the spirit the resources investigate explore etc. expand application realm， further promote instrument function index sign. Accept to press outside tube and thermos bottle carried on heat high pressure to experiment，Experiment result enunciation accept to press outside tube heat high pressure environment bottom work is credibility，The heat preservation ability of the thermos bottle as well the ability attain a technique a request，Certificate should design method is reasonable.