钻井过程中的油层污染可分为泥浆固相颗粒侵入和滤液侵入2种类型。
The formation damage during drilling are recognized as 2 types: mud solid particles plug and mud filtrate invasion.
本文提出了利用渗透率测定仪检测泥浆固相颗粒侵入岩芯深度的方法——分段截割法。
A method for determining the depth of invasion by drilling solids from permeability measurement is proposed in this paper.
本文具体讨论了注水过程中由于固体颗粒侵入造成地层伤害的非线性抛物型偏微分方程反问题模型。
In this paper, an inverse problem of a nonlinear parabolic partial differential equation of formation damage caused by the solids invading during the course of injection is presented.
分析了造成A 8井堵塞的三种主要原因，认为堵塞的原因依次是污油堵塞、固体颗粒侵入堵塞和地层出砂堵塞。
Three kinds of main plugging factors in A8 well have been analyzed, their sequence is effluent oil plugging, solidity invasion plugging and sanding plugging.
双重介质储层受损害的主要原因，是外来液相的侵入或固相颗粒的堵塞。
The invasion of extrinsic liquid phase and the plugging of solid-phase particle are the main factors which damage dual-media reservoirs.
红豆草根瘤胞间隙和侵入线中另有个别细菌含有PHB颗粒，而且数量很少，一个细菌通常仅有一个。
Only very few bacteria contain PHB granules in the intercellular spaces and the infection threads of Onobrychis viciaefolia nodules and usually is one in a bacterium.
红豆草根瘤胞间隙和侵入线中另有个别细菌含有PHB颗粒，而且数量很少，一个细菌通常仅有一个。
Only very few bacteria contain PHB granules in the intercellular spaces and the infection threads of Onobrychis viciaefolia nodules and usually is one in a bacterium.
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