A flow of reservoir fluids into the wellbore during drilling operations.
在钻井作业过程中油藏流体进入到井眼内的流动称为井涌。
Lost circulation is often happened during drilling in multi -fracture formation.
井漏是多裂缝地层钻井作业中经常发生的复杂情况之一。
Logging tool sticking often occurs during drilling operation in Zhongyuan oilfield.
在中原油田，测井阻卡是钻井施工中常遇到的现象之一。
Precision servo motors on x, y, Z axes provide excellent stability during drilling.
轴采用精密伺服电机，在打孔过程中提供了优异的稳定性。
The characteristics of power signal during drilling on machining centers is analyzed in this article.
本文对加工中心钻削过程功率信号的特征进行了分析。
Blowouts occur in all types of exploration and production operations, not just during drilling operations.
井喷可能发生在各种类型的勘探与开发作业过程中，不仅仅是在钻井作业过程中。
Because the mud is expensive and could be harmful to ocean life, it is recycled back to the ship during drilling.
因为这种泥浆较贵，而且对海洋生物有害，所以在钻探过程中，这种泥浆被回收到船上。
The formation damage during drilling are recognized as 2 types: mud solid particles plug and mud filtrate invasion.
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 borehole falling and hydraulic fracture during drilling have a close relation with the distribution of stress field.
钻井过程中井眼跨塌、水力压裂裂缝的形成与应力场的分布有十分密切的关系。
The adapter between the first casing string and either the BOP stack (during drilling) or the wellhead (after completion).
在第一根套管柱和防喷器组(钻井时)或完井后的井口之间的一个接头。
The drilling wire rope of a rig's hoisting system suddenly broke during drilling process, cause serious damage of equipment.
钻机提升系统的钻井钢丝绳在油田钻井过程中突然断裂，造成设备顿钻事故。
Water-power deep perforation well can ameliorate perforation completion and reduce skin factor of pollution during drilling.
实践证明，水力射孔井能够起到改善完井效果、降低表皮系数的作用。
During drilling process, screw drill motor sometimes doesn't work properly or even seriously damaged because of sand jamming.
在钻井施工作业中，螺杆钻具常因砂卡导致螺杆马达工作失效，导致螺杆钻具报废，严重影响了正常钻井作业。
It will cause serious formation damage while water intrude into the gas reservoir during drilling, completion and development.
在钻井完井及开发过程中，工作液及边底水侵入致密砂岩气藏会导致严重的储层损害。
This paper analyzed the practical situation of drilling string lateral vibration during drilling, established mechanical model.
文章针对钻井工程中钻柱横向振动的实际情况，建立力学模型。
This paper introduces the mechanic characteristics, showing during drilling and drilling countermeasures of coal bed in Tuha Basin.
煤层钻探是钻探工程的一大技术难题，分析了吐哈盆地煤层力学特征、煤层钻探的复杂表现和煤层安全钻探对策。
During drilling in high-temperature and high-pressure gas well, the accuracy request of the formation pressure inspection is very high.
在高温高压气井钻井过程中，对地层压力随钻监测精度要求非常高。
In Yanchang oilfield, serious lost circulation often occur during drilling in Panlong and Zichang areas, directly affect drilling rate.
延长油矿管理局在蟠龙、子长等主生产区经常遇到严重漏失井，直接影响了钻井速度。
During drilling operation, the track in horizontal interval is controlled and the hang sidetrack drilling technology is successfully used.
在钻井施工中精确控制了水平段轨迹，应用了悬空侧钻技术。
This article briefly introduces the drill bit condition effected during drilling process and the program - Ming technique to drilling data.
简要介绍数控钻孔加工过程中，钻头的受力情况和对应钻孔程序的编制技巧。
The pressure sensitiveness of gas reservoir with low permeability is one of main factors resulting in gas formation damage during drilling.
低渗气层压力敏感性是钻井过程中造成气层损害的主要因素之一。
In order to increase drilling efficiency and reduce cost during drilling operations, it is necessary to do some research on PDC bit selection.
在钻井施工过程中，为了提高钻进效率，降低成本，对PD C钻头进行选型研究是必要的。
After the various visual defects during drilling processes were analyzed, the importance of drilling with compressive pre stress was presented.
根据复合构件加工中的各种缺陷，分析了采用预压应力钻削对改善表面加工质量的重要性。
The article sketches out the procedure for trial VSP modeling during drilling, the involved instruments and their functions, and the trial effect.
文中介绍了随钻VSP模拟试验的方法、仪器设备及其功能和试验的效果。
A simple separator vessel used to remove free or entrained gas from fluids circulated in the wellbore, such as mud used during drilling operations.
从井筒的循环流体(如钻井作业中所用的泥浆)中去除游离气或夹带气所用的一种简单的分离容器。
The trenchless pneumatic hammers which don t rotate themselves during drilling include impact moles, pipe ramming hammers and pipe bursting hammers.
穿孔过程中自身不回转的非开挖气动锤包括冲击矛、夯管锤和爆管锤。
Shale (mudstone) densimeter is a special instrument used to measure shale (mudstone) density during drilling in geological exploration for oil and gas.
页(泥)岩密度计是石油及天然气地质勘探中现场随钻测量页(泥)岩密度的专用计量器具。
During drilling horizontal well, usually adopt geometry steerable drilling technology to increase the penetration rate of borehole track in oil reservoir.
在水平井钻井中，通常采用地质导向钻井技术来提高井眼轨迹在油层中的穿透率。
During drilling horizontal well, usually adopt geometry steerable drilling technology to increase the penetration rate of borehole track in oil reservoir.
在水平井钻井中，通常采用地质导向钻井技术来提高井眼轨迹在油层中的穿透率。
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