Formation burst pressure is one of the key parameters for the thermal production of heavy oil, drilling engineering and downhole operation.
地层破裂压力是钻井工程、井下作业及稠油油藏热力开采的重要参数。
The brake rims on drilling rig drawworks are subjected to heat load during string lowering and will end in thermal fatigue failure.
石油钻机绞车刹车鼓在下钻过程中，由于热负荷的作用会发生热疲劳破坏。
The description covers full-hydraulic core drilling machines, portable drills, geo-thermal drills, offshore and beach sampling equipment, all-casing drilling rig, etc.
介绍的主要设备有全液压岩心钻机系列、轻便设备系列、地源热泵钻机、浅海及滩涂取样钻机、全套管钻机等。
The stable relationship between the degree of compaction and thermal maturity has important practical significance in the prediciton of organic maturity of a sedimentary basin ahead of drilling.
压实程度与热成熟度之间的稳定关系对沉积盆地热演化程度早期评价具有重要应用意义。
But it has limitation in complex formation drilling for its natural thermal instability and high sensitivity to salt contamination, whereas tannin could he modified to widen its using fields.
因其在使用中具有不耐温、不耐盐等较多缺陷，无法适用于特殊复杂的地层，但是通过对其改性，可以拓宽其应用范围。
The inner cracks of 430 stainless steel samples with adding various vanadium were gotten by drilling and compressing, and then thermal-healing experiment to inner cracks was carried out.
对添加不同含量钒的430不锈钢试样，采用钻孔压缩方法获得内裂纹，然后对其进行热愈合实验，研究了钒对试样内裂纹热愈合和形态演化的影响。
The inner cracks of 430 stainless steel samples with adding various vanadium were gotten by drilling and compressing, and then thermal-healing experiment to inner cracks was carried out.
对添加不同含量钒的430不锈钢试样，采用钻孔压缩方法获得内裂纹，然后对其进行热愈合实验，研究了钒对试样内裂纹热愈合和形态演化的影响。
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