摘要
永和海泡石粘土在盐水中具有良好的造浆性能,土粉的加工粒度、搅拌时的剪切力对其造浆率有一定的影响。用NaOH将其悬浮液的pH值调节到9~10,可大幅提高粘度。在南海油田进行的钻井试验中,成功地用该粘土代替不适宜用海水造浆的膨润土配制优质稠泥浆和阳离子泥浆,钻进了2730m。
Sepiolite clay produced in Yonghe,Hunan has remarkable capability of creating-mud in salt-water, this capability is influenced by granularity and shearing force mixing round the clay.It is possible to increase the creating-slurry-ratio of clay by adjusting pH of the mud to 9~10 with NaOH. It is successful to substitute bentonite with sepiolite clay for confecting thick mud and positive hydronium mud with sea water, having drilled 2 730 meters.
出处
《桂林工学院学报》
1999年第2期135-139,共5页
Journal of Guilin University of Technology
基金
湖南省地矿局海泡石工业利用研究课题