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At present,measurement while drilling(MWD) is a key developing direction of petroleum engineering. 目前,无线随钻测量技术是石油工程技术发展的一个主要方向。
When sidetracking, selecting the correct sidetracking method, and making the best of measurement while drilling (MWD) to monitor, achieve the objective of sidetracking. 侧钻时克服了侧钻点井斜大、裸眼段长、返砂少等困难,选择正确的侧钻方法,充分利用无线随钻侧斜仪进行监测,达到侧钻目的。
However,the channel transmission of drilling fluid pressure,well depth and pump pressure have serious effect on the sampled signal in the measurement while drilling(MWD) system. 由于受到钻井特殊条件的限制,井底和地面之间的随钻测量信号难以通过有线方式进行传输,目前工程中主要采用基于钻井液脉冲位置编码调制的无线传输方式。
With the research on the compensation algorithm and signal processing algorithm,a high accuracy MWD (Measurement While Drilling)system is designed in which the homemade sensors are used. 选用国产传感器并进行补偿算法和信号处理算法研究,设计了高精度的随钻测斜系统。
Sandia National Laboratories.Environmental Measurement While Drilling (EMWD),prepared for U.S.Department of Energy Office of Environmental Management Office of Science and Technology[R]. 叶建良;蒋国盛;窦斌.;非开挖铺设地下管线施工技术与买践[M]
Its main surveying system is consisted of a GST sub, LWD (Logging While Drilling ),and MWD (Measuring While Drilling ). 1997年南海东部陆丰22-1油田开发水平井应用了该系统,收到了良好的效果。
Mud Pulse Measurement While Drilling System 泥浆脉冲随钻测量系统研究
electromagnetic measurement while drilling 电磁随钻测量
measurement while drilling (MWD) 随钻测量
Developments of Electromagnetic Measurement While Drilling 电磁随钻测量技术现状及发展趋势
gravity measuring while drilling 重力MWD
Selection of Wavelet Base for Processing Signal of Wireless Measurement While Drilling 无线随钻测量系统信号处理的小波基选取
ZTS ELECTROMAGNETIC MEASUREMENT WHILE DRILLING SYSTEM AND ITS FIELD EXPERIMENTATION ZTS电磁波随钻测量系统及其现场试验
Keywords measurement while drilling;work principle;rotary pulser;control module; 工作原理;旋转阀脉冲发生器;控制模块;
Keywords mechanical inclinometer;vertical well;measurement while drilling;design scheme;key techniques; 机械测斜仪;直井;随钻测量;设计方案;关键技术;
Keywords development seismology;seismic measurement while drilling;vertical seismic profiling;comprehensive interpretation; 关键词开发地震;随钻地震;垂直地震剖面法;综合解释;
Be careful and not overexert while drilling through the hole. 孔将穿透时应十分小心，不可用力过猛。
Keywords trajectory;measuring while drilling;inclinometer;measurement error;stochastic error;error analysis; 井眼轨迹;随钻测量;测斜仪;测量误差;随机误差;误差分析;
High drum clutches are getting hot while drilling, please repair or change it! 高速离合器发热,请修理一下或换掉!
Actual Barite consumption will depend on hole condition while drilling. 实际的重晶石用量取决于井下的实际需要。