Domestic near-bit gamma ray
Keyword:Domestic near-bit gamma ray
Classification:
- Product description
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Company's self-produced near-bit equipment overall performance indicators:
Instrument features:
Serial number Technical features Advantages 1 Near-bit inclination measurement technology Using high-precision quartz accelerometers, suitable for the rapid rotation conditions of the drill bit, near-bit static and continuous inclination measurement technology, measuring point distance from the bit is 0.56 meters, better achieving trajectory control under motor operation mode. 2 Near-bit azimuth gamma measurement technology Provides real-time 4-sector and 8-sector memory near-bit azimuth gamma imaging measurement, measuring point distance from the bit is 0.42 meters, achieving near-bit geological guidance function, effectively determining whether it is "top out" or "bottom out." 3 Downhole short-distance wireless transmission technology It is the core technology and difficulty of near-bit instruments, applicable to water-based and oil-based mud, transmitting signals across the motor. 4 Non-insulated structure Compared to market insulated structure near-bit instruments, it has high structural reliability and low maintenance costs. 5 Compatible with conventional motors Strong applicability, low on-site operation costs. Parameters Technical indicators Applicable wellbore 8.5in Temperature resistance 150° Pressure resistance 145MPa Continuous working time >200h Pulse generator type 675 rotary valve Upload rate 1.0bit/s Drill bit rotation speed 100-250r/min Motor flow rate 18-40L/s Surface equipment working temperature -25-+70℃ Power supply 220 ±20V, frequency 50HZ-60HZ Instrument measurement parameters Parameters Measurement range Measurement accuracy Measurement zero length (budget) Inclination angle 0-180° ±0.1° 12-14m Azimuth angle 0-360° ±1° 12-14m Near well inclination angle 0-180° ±0.2° 1m Tool face angle 0-360° ±1° 12-14m Azimuth gamma 0-300API ±5% 0.8m Parameters Technical indicators Transmitter short section Tool size 7” Transmission method Electromagnetic wave short transmission Gamma sensor position 0.42m from the bottom shoulder Inclination sensor position 0.56m from the bottom shoulder Transmission rate Maximum 100 bits/second Gamma measurement range 0-300API Inclination range and accuracy 0-180°±0.2° Transmitter short section length 1.1m Transmitter short section outer diameter φ178mm Transmitter short section inner diameter Φ45mm Transmitter short section thread type 4 1/2”REG Upper thread torque 15,000 ft-lbs Receiver short section Receiver short section length 1.8m Receiver short section outer diameter φ178mm Receiver short section inner diameter φ50.8mm Receiver short section thread type 4 1/2”IF Upper thread torque
Product inquiry
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National Sales Hotline:
E-mail: ZhiBin.Li@chbtr.com
Address: Floor 1, Building 4, Phase III, Xihu Science Park, No.2 Meihu Road, Xihu Street, Hanjiang District, Yangzhou City, Jiangsu Province
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