超高温高压流变仪的研发及应用

Development and application of the ultra high temperature high pressure （HTHP） rheometer

摘要:

由北京探矿工程研究所牵头的国家重大科学仪器设备开发专项“超高温高压钻井液流变仪的研发及产业化”历时5年，成功研发了Super HTHP Rheometer 2018超高温高压流变仪，实现了高温320 ℃、低温-10 ℃和高压220 MPa条件下的高精度粘度测量，主要技术指标达到国际先进水平，打破了国外高端钻井液流变仪的技术垄断，填补了国内空白。该产品可以模拟真实的高温高压环境，实时测定钻井液、压裂液、凝胶堵漏剂、黄原胶等不同样品的粘度随温度、压力和剪切速率的变化规律，可以真实地测定样品在高温高压环境下的流变性，可以克服传统滚子炉热滚法测试样品导致测试的性能指标虚高的弊端，避免井下事故的发生。在国内某新型清洁能源钻探等项目进行了应用，为多家单位的油基、水基钻井液和高温堵漏凝胶等不同样品提供了精确的测试技术服务。

Abstract:

The national major scientific instrument and equipment development project “Development and industrialization of ultra high temperature and high pressure drilling fluid rheometer” led by Beijing Institute of exploration engineering has lasted for five years， successfully developed super HTHP rheometer 2018 ultra-high temperature and high pressure rheometer， and achieved high precision viscosity measurement under the conditions of high temperature 320℃， low temperature-10℃ and high pressure 220MPa， The main technical indexes have reached the international advanced level， breaking the technical monopoly of foreign high-end drilling fluid rheometer and filling the domestic blank. The product can simulate the real high temperature and high pressure environment. The viscosity of different samples such as drilling fluid， fracturing fluid， gel plugging agent， xanthan gum and so on can be measured in real time according to the changing rules of temperature， pressure and shear rate. It can truly measure the rheological properties of samples under high temperature and high pressure environment， and overcome the disadvantages of the traditional roller furnace hot rolling test sample which leads to the high performance index of the test. Avoid the occurrence of underground accidents.