| Place of Origin |
China (Mainland) |
Product specifications and technical parameterO.D. at each endO.D. of workingAvailable diameter of the drilling bitConnection of bottom hole typeConnection of drilling string typemm(in)mmmmUpper endLower endUpper endLower end121(4-3/4)158、158.7、157158.7(6-1/4)NC353-1/2REGNC35NC35159(6-1/4)190.5、190、189190.5(7-1/2)NC444-1/2REGNC44NC44215.9、215、214215.9(8-1/2)NC46NC46NC46178(7)190.5、190、189190.5(7-1/2)NC504-1/2REGNC50NC50215.9、215、214215.9(8-1/2)244.5、244、243244.5(9-5/8)203(8)311.1、310、309311.1(12-1/4)NC566-5/8REGNC56NC56444.5、443、441444.5(17-1/2)229(9)444.5、443、441444.5(17-1/2)NC617-5/8REGNC61NC61660.4、658、655660.4(26) Integral Screw Stabilizer plays an important role in stabilizing petroleum, gas and geoexploration.