Home > Products > Drilling Tools > China supplier!! high quality oilfield Circulating Sub
China supplier!! high quality oilfield Circulating Sub
- 5000 Piece / Pieces per Month
- Shanghai / Tianjin / Qingdao Port
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Product Details
| Place of Origin: | China | Brand Name: | SINOTAI | Model Number: | S |
| Type: | Other, Circulating Sub | Machine Type: | Drilling Tool | Certification: | API |
| Material: | Carbon Steel | Processing Type: | Forging | Use: | Well Drilling |
Packaging Details
export standard packing or as customer's requirments
Product Description
Circulating Sub
The circulating sub is connected between wellhead pipe string and ground circulating system. When casing is running or finished running, the circulating sub is connected to make fluid circulation. According to the application, the circulating sub is connected between Kelly and casing or between casing and hose. The former is used for fluid circulation during connecting of casing. The later generally is used after connecting of casing.
Construction
The circulating sub during running casing is equipped with casing pin thread on one end or DP thread and DP box thread or union thread on other end.
specifications - Circulating sub
Thread/ Model | I.D.(mm) | Length(mm) | |
Drill pipe box connection | Casing thread | ||
NC38 | 5 BTC | 57 | 500 |
5 LTC | |||
5 ST & C | |||
NC38 | 5 1/2 BTC | 57 | 580 |
5 1/2 LTC | |||
5 1/2 ST & C | |||
NC50 | 7 BTC | 71 | 600 |
7 LTC | |||
7 ST & C | |||
NC50 | 9 5/8 BTC | 71 | 620 |
9 5/8 LTC | |||
9 5/8 ST & C | |||
NC50 | 10 3/4 BTC | 71 | 670 |
10 3/4 LTC | |||
10 3/4 ST & C | |||
NC50 | 13 3/8 BTC | 71 | 670 |
13 3/8 LTC | |||
13 3/8 ST & C | |||
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
- Phone86-546-8300512
- AddressNo. 107, Bldg. 45, Gaoerfu, Wanda, Dongcheng
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