BOBO Energy Equipment Co., Ltd
Company Description
We are Bobo Energy Equipment Co., LTD located in Beijing , China. We are member of Tradekey.com since December, 2010. Our business is related to Energy Products industry and we specifically deal in drilling tools. Please find our product details below: drill collar, API 7 drill collar, drilling tool Standard: API Spec 7 Material: AISI 4145H Alloy Steel or Non-magnetic material Specification: OD: 3 1/8â€-11†Length: 10’-32’ Usage: The Drill Collar is used between the drill pipe and the bit in the drill stem. It is used to put weight on the bit so that the bit can drill. For more information of Drill Collar, please refer to Technical Support. Description: Slick Drill Collars Drill collars are made of AISI 4145 H or 4145 H modified alloy steel, which are trepanned and drifted to API Spec. 7. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec. 7 requirements. A hardness range of 285-341 Brinell Hardness and Charpy “V†notch minimum impact strength of 40ft-lb at 70F are guaranteed one inch below the surface. Spiral Drill Collars We manufactures not only slick Drill Collars, but also spiral Drill Collars with Slip, Elevator recesses and hardbanding. Our drill collars are available in lengths from 10 to 32 feet and outside diameter from 3-1/8" to 11". Spiral drill collars are complete product line. Spiral grooves let mud circulate freely around the drill collar to equalize pressure and prevent a seal from forming. The reduces the occurrence of differential sticking without spiral. Spiral collars are wide used because of their maintenance features. The special grooves decrease the volume of the contact between the well side and the pipe, it leads to the decrease of the “tack†of the pipe and to turning of the drill pipe string. The weight of round drill collars will be reduced approximately 4-6% by spiral conversion. Non-magnetic Drill Collars Materials of the Non-magnetic drill collars are from chrome manganese, low carbon alloy obtained by combining a proprietary chemical analysis and a rotary hammer process. The material is resistant to stress corrosion cracking, with high machine ability and no tendency to galling. drill pipe, API 5DP drill pipe, drill rod Drill pipe Standard: API 5DP Specification: OD: 2 3/8â€-6 5/8†Steel Grade: E75, X95, G105, S135 Heavy Weight Drill pipe Standard: API Spec 7-1 Specification: OD 3 1/2â€, 4", 4 1/2â€, 5â€, 5 1/2â€, 6 5/8" Material: AISI 4145H Alloy Steel and Non-magnetic material Type: Integral and Friction welded drill collar, API 7 drill collar, drilling tool Standard: API Spec 7 Material: AISI 4145H Alloy Steel or Non-magnetic material Specification: OD: 3 1/8�-11� Length: 10�-32� Usage: The Drill Collar is used between the drill pipe and the bit in the drill stem. It is used to put weight on the bit so that the bit can drill. For more information of Drill Collar, please refer to Technical Support. Description: Slick Drill Collars Drill collars are made of AISI 4145 H or 4145 H modified alloy steel, which are trepanned and drifted to API Spec. 7. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec. 7 requirements. A hardness range of 285-341 Brinell Hardness and Charpy �V� notch minimum impact strength of 40ft-lb at 70F are guaranteed one inch below the surface. Spiral Drill Collars We manufactures not only slick Drill Collars, but also spiral Drill Collars with Slip, Elevator recesses and hardbanding. Our drill collars are available in lengths from 10 to 32 feet and outside diameter from 3-1/8" to 11". Spiral drill collars are complete product line. Spiral grooves let mud circulate freely around the drill collar to equalize pressure and prevent a seal from forming. The reduces the occurrence of differential sticking without spiral. Spiral collars are wide used because of their maintenance features. The special grooves decrease the volume of the contact between the well side and the pipe, it leads to the decrease of the �tack� of the pipe and to turning of the drill pipe string. The weight of round drill collars will be reduced approximately 4-6% by spiral conversion. Non-magnetic Drill Collars Materials of the Non-magnetic drill collars are from chrome manganese, low carbon alloy obtained by combining a proprietary chemical analysis and a rotary hammer process. The material is resistant to stress corrosion cracking, with high machine ability and no tendency to galling. drill pipe, API 5DP drill pipe, drill rod Drill pipe Standard: API 5DP Specification: OD: 2 3/8�-6 5/8� Steel Grade: E75, X95, G105, S135 Heavy Weight Drill pipe Standard: API Spec 7-1 Specification: OD 3 1/2�, 4", 4 1/2�, 5�, 5 1/2�, 6 5/8" Material: AISI 4145H Alloy Steel and Non-magnetic material Type: Integral and Friction welded Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.
Contact info
- Contact Person: Mr. Winnie Niu
- Department: Sales
- Telephone:
- Mobilephone:
- Zip/Post Code: 100010
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