Main products include: auto dry-mixing facility for oil well cement, no-subpressure remote monitor and control water supplying equipment, electrical sets and automation instrument.

油井水泥自动干混装置、远程监控无吸程无负压供水设备、电气成套设备、智能自动化仪表系列。

The expansion mechanism of hydroxide expanding phase for oil well cement slurry are discussed on the basis of principle of chemical thermodynamics and topochemical reaction model.

要基于膨胀剂原地反应模型和化学热力学原理，讨论了晶体生长压的源动力及水泥浆体体积膨胀与结晶压的关系。