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- Also air bladder and sand contained in mud, type of mud affect attenuation of mud pulse signal. 钻井深度、泥浆中的气泡量、含砂量和泥浆类型对信号衰减有一定的影响。
- Mud pulse MWD can not be used when too much gas or air in drilling fluid, and therefore electro-magnetic telemetry has speedily developed as an alternative. 钻井液气体较多时泥浆脉冲方法也难以应用,而电磁波随钻遥测技术作为一种替代技术近年来发展很快。
- The paper introduces three basic working styles of signal transmission of mud pulse MWD sys tern,pressure positive pulse, pressure negative pulse and continuous pressure wave. 介绍了泥浆脉冲随钻测量系统信号传输的3种基本工作方式:压力正脉冲、压力负脉冲和连续压力波。
- In the course of transmission, mud pulse signal mainly disturbed by drilling pump,engine in the bottom hole, air bladder contained in mud and movement of drilling equipment. 泥浆脉冲信号在传输过程中主要受钻探泵、井底动力机、泥浆中的气泡及活动钻具的干扰;
- With the development of drilling technology, more borehole information is needed to know while drilling and the mud pulse telemetry now hardy meets the requirement of intelligent drilling. 摘要随着钻井技术的发展,需要了解的井下信息越来越多,泥浆脉冲随钻信息传输难以满足智能化钻井要求。
- Mud Pulse Measurement While Drilling System 泥浆脉冲随钻测量系统研究
- They are either transmitted to surface by mud pulses, or else recorded downhole and retrieved later when the instrument is brought to surface. 两种方式或者通过泥浆脉冲将信息传输到地表,或者在井下记录,或者在将工具带到表面之后再进行检索。
- The tuck slowly ploughed through the mud. 车在泥泞中吃力地缓慢行驶。
- An unwanted false electronic pulse. 一种不希望有的假电子脉冲。
- A passing car splashed mud on my new trousers. 路过的一辆车把泥水溅到我的新裤子上了。
- The mud was soft and our feet sank in. 泥很软,我们的脚都陷进去了。
- The truck bespattered my clothes with mud. 卡车溅得我满身衣服都是泥浆。
- The heavy wheels churned the earth into mud. 笨重的车轮将大地碾成了泥浆。
- She combed the mud out of the dog's fur. 她梳去狗的皮毛中的泥土。
- Her clothes were bespattered with mud. 她的衣服溅上了泥污。
- He knew the pulse of the nation. 他了解国民的心态。
- As the bus passed, it spattered mud on my clothes. 公共汽车开过时溅了我一身泥。
- The doctor took my temperature and my pulse. 医生量了量我的体温和脉搏。
- He removed the mud from his shoes. 他去掉鞋上的泥。
- The excitement quickened my pulse. 激动使我的心跳加快。