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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8 1/4" Non Magnetic Oil Rig Drilling Spiral Drill Collar
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... chemical composition and achieved its mechanical properties by forging. When the magnetic field strength is 1 × 105 / 4π A / m, the relative permeability μr≤1.010 of the non-magnetic drill collar. The...
Langfang pangolin construction machinery co. LTD
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Oil & Well drilling API spec standard drill collar/ Slick drill collar, Spiral drill colla
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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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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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6 3/4" Non Mag Drill Collars NMDC Drilling Tool For Oil Gas
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...Drill Collars NMDC Oil Gas Drilling Tool API Drill Collar Spiral Drill Collar And Non Magnetic Drill Collar Introduction Non-magnetic drill collars have unusual design requirements and therefore bring unique corrosion resistance issues. The drill collar is the bottom component of the drill string. The weight of the drill generates a force on the drill bit on the drill generates to make it drill in. The stiffness of the drill......
Langfang Pangolin Drilling Tools 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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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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Lightweight Drill Collar Slip Carbon Steel Material For Energy / Mining
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Drill Collar Slip Introduction: Type DCS Drill Collar Slip The Type DCS drill collar slips are designed and manufactured in API Spec 7K and SY5049-91.It is manufactured in a structure of multi-segment pieces with firm structure, light weight, and large holding range, which is easy to fit the changing of the external diameter of the drill collar......
XIAN ATO INTERNATIONAL CO.,LTD
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