油基泥浆钻屑物理化学分析与水泥窑处置可行性探讨

采用XRF荧光分析、TG-MS热重质谱联用分析、TG-DSC综合热分析、煅烧试验分析、XRD分析,对来自四川某地的油基泥浆钻屑的物理化学性质进行了研究,并根据测试结果,分析水泥工业协同处置油基泥浆钻屑的可行性.结果 表明:油基泥浆钻屑主要成分以SiO2、SO3、CaO和BaO为主,在常温条件下会有一部分挥发性组分选出;在升温过程中,其中所含的有机质、化石燃料等会在200~500℃之间燃烧并释放出一定的热量,同时在1 400℃时,会有大量的液相产生,其主要成分变化不大,但是物相发生了较大的变化.根据其物理化学性质判断,可以从分解炉、窑头、篦冷机窑口底下等部位加入油基泥浆钻屑,进而完成对其资源化利用.

Physical and chemical analysis of oil-based mud drilling cuttings and feasibility study of co-processing of oil-based mud drilling cuttings by cement kiln

The physical and chemical properties of oil-based mud drilling cuttings were studied by XRF fluorescence analysis, TG-MS thermogravimetry mass spectrometry analysis, TG-DSC comprehensive thermal analysis, calcination test analysis and XRD analysis. According to the test results, the feasibility of co-processing of oil-based mud drilling cuttings by cement kiln were analyzed. The results showed that the main components of drilling cuttings were SiO2, SO3, CaO and BaO. There will be some volatile constituent escape under ambient conditions. In the process of heating up, the organic matter and fossil fuels will be burning between 200-500 T and release a certain quantity of heat. There will be a lot of liquid phase at 1400℃,its main composition is a little change, but the phase changing greatly. Oil-based mud drilling cuttings could be added from the precalciner, kiln head, grate cooler and other parts, so as to complete the resource utilization.