127mm 5" Non Magnetic Drill Collars For Directional Drilling
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... composition, and its mechanical properties are obtained by forging. When the magnetic field strength was 1× 105/4marea/m, the relative permeability bias r of the non-magnetic drill collar ≤1.010. The...
Langfang pangolin construction machinery co. LTD
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3 1/2IF Directional Thread Drill Collars 127mm 5in For Oil Industry
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...Drill Collars For Directional Drilling Non Magnetic Collar Sprial Drill Collar For Oil Field Advantages Since all magnetic measuring instruments sense the borehole's geomagnetic field when measuring the direction of the borehole, the measuring instrument must be in a non-magnetic environment. However, in the drilling process, the drilling......
Langfang Pangolin Drilling Tools Co., Ltd.
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High Quality Hot sale Slick drill collar buy wholesale direct from china
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The surface finish of slick drill collar shall be hot-rolled and mill –finished. Spiral drill collar is to do slot turning outside the surface. Spiral groove on drill collar 's OD make the drilling fluid evenly, equal pressure, with less differential ......
Jiangsu Shuguang Huayang Drilling Tool Co., Ltd.
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Non Magnetic Auger Oilfield Drilling Collar 9150 MM Length
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... collars and drill collars with slip grooves. Product Specifications Ф79 drill collar, Ф89 drill collar, Ф105 drill collar, Ф121 drill collar, Ф146 drill collar, Ф159 drill collar, Ф165 drill collar, Ф178 drill collar, Ф203 drill collar, Ф229 drill collar....
Shaanxi FORUS Petroleum Machinery Equipment Co., Ltd
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API Standard Non Magnetic Drill Collar For Oil Field Well Drilling Pipe
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...drill bit and improving the rigidity of the drill string. Drill collars mainly play the following roles in the drilling process: (1) Apply drilling pressure to the drill bit; (2) Ensure the necessary strength under compression conditions; (3) Reduce the...
Shandong Huichi Industry and Trade Co.,Ltd.
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Non Magnetic Drill Collar Oil Field Drilling Tools 9150 and 9650mm API Certification
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API Spec Non Magnetic Spiral Drill Collar Oil Field Drilling Tools Description: Drill collars are manufactured from 4145H modified steel.Drill collars are bored and drifted to API Spec 7-1 and fully heated to meet or exceed the mechanical property ......
Jiyuan City Kunyuan Forging Co., Ltd
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Spiral Drill Drill Collars
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...Drill Drill Collars Spiral Drill Collars The spiral cut is added to a drill collar to prevent the likelihood of differential wall-sticking by reducing wall contact between the drill collar and the wall of the hole. The spiralling starts 22” from the bottom of the slip recess or 79” from the box end and ends 30” from the pin end. Adding spiralling to drill collars reduces the weight by approximately 4%. InterDril Spiral Well Test Drill...
ROSCHEN GROUP
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Non-Magnetic Drill Collar P530 P550 Meeting API Spec.7-1 and NS-1 Standards
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...Drill Collar P530 P550 A non-magnetic drill collar is a specialized component used in the drilling industry, particularly in directional and horizontal drilling operations. Unlike traditional drill collars, these are made from non-magnetic materials, such as stainless steel or other alloys, to avoid interference with the measurement-while-drilling (MWD) and logging-while-drilling......
Hunan Dinghan New Material Technology Co., LTD
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REG Thread AISI 4145H Non Magnetic Slick Drill Collars
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.../8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that...
Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
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NMDC Non Magnetic Drill Collar NC23 NC26 NC31 Thread
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...Drill Collar And NMDC Non Magnetic Drill Collar Drill collars are extra-heavy integral tools used to concentrate weight onto the drill bit so as to produce sufficient force for the drill bit to break rock efficiently while drilling. They are made of AISI 4145H or 4145H modified steel and are connected between drill pipes and drill bits. Our drill collar......
Dongying Oilman Machinery Equipment Co.,Ltd.
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