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Development trend of wireless measurement while drilling technology
Dec 18, 2018

(1) There is a need to develop MWD instruments of various sizes that meet different conditions to meet the objective needs of practical wellbore dimensions for drilling engineering;
(2) Design of near-bit measurement. The closer the measurement while drilling is to the drill bit, the better the measurement result is for the trajectory measurement and the target rate in the target layer is improved;
(3) The reliability of the MWD instrument is enhanced. With the emergence of huge memory chips and high temperature and high voltage electronic components, MWD instruments that are more adaptable to the strong vibration, high temperature and high pressure of the drilling environment can be manufactured to adapt to the measurement while drilling in different drilling environments;
(4) The data transmission rate is further improved. Increasing the data transfer rate is an objective requirement for an increasing amount of downhole information. Mud pulse transmission, acoustic wave transmission, electromagnetic wave transmission, optical fiber transmission technology improvement, there are many technical difficulties to break through.
(5) The complexity of the target layer is increasingly demanding the accuracy of the instrument measurement. Therefore, only the development and application of high-precision measurement sensors can meet the requirements of drilling engineering.

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