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Φ 114 double-wall drill pipe-beneficial mining technology-drill pipe-geological drill pipe-spiral drill pipe
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Classification:
- Product Description
- Instructions for use
- Application Case
- Product Parameters
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- Commodity name: Φ 114 double-wall drill pipe-beneficial mining technology-drill pipe-geological drill pipe-spiral drill pipe
- Commodity ID: DZG-405
- 上架时间：: 2017-08-08 17:36
- 直径：: 114
- 长度：: 1000
- 螺纹形式：: Male and female connection
- 生产工艺：: Quality steel forging forming
- 适用范围：: National coalfield. Oil drilling. Geological exploration, water conservancy and hydropower. Railways and roads. Tunnel construction and other industries
Shandong yi mining drilling technology co., ltd. production of drilling engineering dedicated to all kinds of geological drill pipe, spiral drill pipe, triangular drill pipe, coal drill pipe, drill bit, drill pipe, complete specifications! company set research and development-production-sales-sales as one, welcome customers to purchase, tel: 0635-2311078
1.Introduction of Double Wall Drill Pipe
Double-wall drill pipe is also called double-layer drill pipe. By the inner and outer two layers of drill pipe(Inner tube and outer tube)composed. The question between the inner and outer tubes constitutes an annulus.,It is hydraulic rock transport drilling and central sampling drilling.,A channel for pumping flushing medium to the bottom of the well. The central bore of the inner tube is discharged and the flushing medium is fixed into a whole,The connection between each double-walled drill pipe is made with the thread of the outer pipe.,Guaranteed transmission of torque and pressure. And the inner tube between the use of plug-in mode,Generally, it only plays the role of circulating flushing medium,Therefore,Sealing device shall be set at the plug joint.
2.Basic structure of double-wall drill pipe
Drill pipe for rotary table drive mainly has two types of square section and hexagonal section, Under the condition that the inner diameter and outer diameter have been determined, The hexagonal section has greater mechanical strength, Therefore, the drill rod for driving the double-walled pipe is determined to be a hexagonal cross-section.
The design of the double-wall drill pipe joint is focused on the buckle type of the outer pipe joint. Theoretically speaking, The greater the taper of the thread, The greater the external force the screw thread bears., The standard taper shall be selected when considering both the external force of the thread and the comprehensive bearing capacity of the joint., This is conducive to processing, Guaranteed quality. by calculating, Taper of screw thread is preliminarily determined1 :16, The pitch is4.2 mm, The tooth type is geological drill pipe buckle tooth type.
3.Connection of double-wall drilling tool system
It is mainly composed of wellhead and downhole. The wellhead part mainly has double-walled tube rotary inflatable joint and double-walled tube hexagonal drill pipe from top to bottom., Downhole part from top to bottom mainly includes double-walled pipe drill pipe, double-walled pipe blowout preventer sub-section, double-walled pipe gas-liquid diversion sub-section
Key words:- 地质钻杆
- 螺旋钻杆
- 钻杆
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Geological production of our companyThe main body of the drill pipe uses high-quality geological special alloy steel pipe, and the joint of the drill pipe uses high-quality alloy structural steel. It is manufactured by high-pressure forming, vacuum tempering treatment, friction welding and overall surface hardening. Advanced automatic processing equipment is used for thread processing, which effectively ensures the processing accuracy of each product. The production process of friction welding before thread processing ensures the best coaxiality standard of multiple connections of drill pipes during deep hole drilling. Compared with similar products, it has the characteristics of high bending strength, large rotating torque and stable operation.
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The geological drill pipe products produced by our company are widely used in various regions at home and abroad. The main use areas in China are: China Coal Group, Longmei Group, Shenmei Group, Fengfeng Coal Industry, Kailuan Coal Industry, Lu'an Coal Industry, Yangmei Group, Jinmei Group, Xishan Coal Power, Fenxi Coal Industry, Datun Coal Industry, Xinji Energy, etc. The main use areas abroad are Russia, Australia, Southeast Asia and Northern Europe.
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★ COMPANY PROFILE ★
Shandong Yikuang Drilling Technology Co.,Ltd. Located in Linqing City, a famous city of the ancient Beijing-Hangzhou Canal and an important industrial town in Shandong Province, it is located 500 meters south to the west at the intersection of 323 Provincial Highway and 247 Provincial Highway of Youth Sub-district Office. The company has a registered capital of 50 million yuan and the factory covers an area of 100000 ㎡. It is a high-tech enterprise integrating technology development and equipment manufacturing, sales and technical services in the fields of geological drilling, coal mining, engineering anchoring, gas and dust disaster control.
Since its establishment, the company has been committed to the development and application of drilling, mining, anchoring and equipment in coal mines, mines, construction and water conservancy projects, railways, highways, tunnels and bridges. In 2018, "Liaocheng industrial and mining safety protection drilling tool engineering technology research center" was settled here, and was successively rated as "national high-tech enterprise", "provincial specialized and special new enterprise", "science and technology small and medium-sized enterprise" and "Shandong gazelle enterprise" Liaocheng "one enterprise, one technology" R & D center. The company has established long-term strategic cooperative relations with many scientific research institutions and equipment enterprises. The strength of the company, there is a professor, associate professor, doctor, master and other composed of more than 40 people of high-quality scientific and technological personnel. Relying on the talent and technical advantages of many mining universities and strategic cooperation units, and aiming at the needs of coal, mining, construction engineering and other industries, it has developed and produced a number of drilling products and equipment with independent intellectual property rights.
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