Home > Products > Protective Equipment > Low-price sale!! API standard!! Back-off Sub for oilfield drilling,made in China
Low-price sale!! API standard!! Back-off Sub for oilfield drilling,made in China
- 1000 Piece / Pieces per Month
- Shanghai / Tianjin / Qingdao Port
- T/T
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Product Details
| Place of Origin | China | Brand Name | SINOTAI | |
| Model Number | ZDK | Type | Other, Back-off Sub | |
| Machine Type | Drilling Tool | Certification | API | |
| Material | Carbon Steel | Processing Type | Forging | |
| Use | Well Drilling |
export standard packing or as customer's requirment
Product Description
Specifications
Incident handling tool Back-Off Sub (back-off spear)1.API Spec
2.High strength, high toughness
3.Reliable performance
Back-off Sub
Product Explanation: The back-off sub also named back-off spear. There is usually a left hand thread for tool joint at the upper part of the body, while the expansion sleeve has right hand thread. The guide cone at the lower part can make the expansion sleeve of the sub conveniently screw the fish connection. Raising the drilling tool, the expansion sleeve can hold the fish firmly, then reversing.
Product types and specifications:
Type | O.D. | I.D. | Connection | Fishing Connection | OAL |
ZDK105 | 105(4-1/8) | 20(25/32) | NC31 LH | 2 7/8″EUE | 572(22-1/2) |
ZDK121 | 121(4-3/4) | 22(7/8) | NC38 LH | 3-1/2″EUE | 600(23-5/8) |
ZDK121 | 121(4-3/4) | 22(7/8) | NC38 LH | NC38 | 630(24-13/16) |
ZKD159 | 159(6-1/4) | 28(1-5/32) | NC50 LH | NC50 | 690(27-11/64) |
ZDK178 | 178(7) | 28(1-1/4) | NC50 LH | 5-1/2FH | 680(26-3/4) |
Company Profile
As a professional supplier of OCTG, drilling equipment and workover service, Sinotai Petroleum Equipment Co., Ltd. lies in the production base of petroleum equipment and China's second largest oil field --Shengi Oilfield. Our company is a high-tech enterprise in Dongying City with business scope covering the sale, trading, post-sale service and technological development of a wide variety of petroleum equipment. Besides OCTG, we provide our customers with other drilling and oil recovery equipment like fishing tools, cementing tools, workover rigs, pumping units and OCTG accessories. The striving target of our company is "Prestige first, Quality supreme; The shortest delivery time, The lowest price, The best quality". Customers' needs are our first priority and customer satisfaction is the bottom line by which we measure our success.
Contact Us
- Sinotai Petroleum Equipment Co., Ltd.
- Contact nameHerish Kuo Chat Now
- Phone86-546-8300512
- AddressNo. 107, Bldg. 45, Gaoerfu, Wanda, Dongcheng
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