well cuttings

Results show that: ( 1) High production of well rooted cuttings can be realized by keeping straight stem and platform crown of the cutting collecting trees;

结果表明：华北落叶松直干台形冠采穗树，插条产量高，生根效果好；

For extended reach well, the cuttings bed is the key factor restricting hole cleaning.

大位移井中，岩屑床是制约井眼净化的关键性因素。

Based on the study of cores, well cuttings, and outcrop sections, the facies of volcanic rocks can be divided into 4 types and 12 sub-facies.

根据钻井岩芯/岩屑和剖面地质研究结果，火山岩相可分为4类12型。

The paper develops the base compound of water-in-oil emulsion drilling fluid, evaluates its inhibition, thermal stability and its capacity of water cut-resistance, well cuttings cut-resistance and cement cut-resistance.

研制了油包水乳化钻井液的基本配方，评价了其抑制性，热稳定性，以及抗水侵污能力，抗钻屑侵污能力，抗水泥侵污能力。