Measurement while drilling systemluhai mwd system is equipped with international brand of directional sensor and gamma sensor, use us patented well depth measurement technique and exclusive rotary joint design which make our system outstanding in oil and gas drilling industry. It has the unique structure of dropping prevent system allow the down hole parts can be fishing during sticking.Measurement parametersinclinationazimuthgravity tool facemagnetic tool facegravity summagnetic field sumtemperaturenatural gammadirectional gammamwd system specification & features:1.work environment parameterspulser: positive pulse, key typesize of non-magnetic drill collar: 89mm 229mm(3.59)mud displacement: 10---55lsmud density:1gcm 2.1gcm(7.5ppg18ppg)sand content :