在石油钻井工程中,固井是重要环节之一。固井是用水泥浆顶替钻井中的泥浆,把水泥浆用泵沿钻井套管向下送至套管底部并上返至套管外环形空间的一定部位,硬结后阻止地层之间流体窜流及固结套管柱。因此,固井质量低劣,将造成不同地层之间的流体窜流,给采油作业带来很大的影响,如水泥浆因流动性差或凝结时间过短而导致在套管中硬结,则将造成更大的损失。 Cement drilling is an important part of the oil drilling project. Cementing is the use of cement slurry to replace the mud in the well. The cement slurry is pumped down the well casing to the bottom of the casing and back to a certain part of the annular space outside the casing. After induration, fluid turbulence between the formations is prevented and Consolidation casing string. Therefore, poor cementing quality will cause fluid turbulence between different formations, which will have a great impact on oil production. For example, if the cement slurry is poorly fluidized or the condensation time is too short, it will harden in the casing. Big loss.