Instead of using composite and chemical synthesis technology, we import birch and beech from overseas and adopt Tenon plug structure to avoid or reduce the use of cementing compound.
This paper introduces a new cementing tool named circulating blind pipe, and it's mechanical structure, operation principle and successful applications while cementing a liner in a lost well.
详细介绍了一种新型固井用井下工具——可循环盲板的结构、工作原理及其在漏失井筛管固井中的成功应用。
3
Soil aggregate is the main component of soil and the basic unit of soil structure. Its formation and stability are realized by the effects of all kinds of cementing substance in soil.