Based on the study of cement slurry setting property, a test instrument has been developed for in-house evaluating the anti-gas channeling ability of slurry under the simulated downhole conditions.
通过对固井水泥浆凝固特性的研究，研制出了可模拟井下条件的室内“水泥浆防气窜能力评价仪”。
2
High quality, low bit rate image compression method is one of the key technologies to develop downhole video logging instrument.
高清晰度，低比特率的图像压缩技术是研究井下电视的关键技术之一。
3
JW-5 borehole em system is a new instrument for downhole (or underground) geophysical survey, which consists of a data acquisition unite and a data processing unit.