Forging Circulating Sub Steel Material Oil Well Drilling Sub Tools with Drill Pipe Thread

• After-sales Service: 3 Years
• Warranty: 24moths
• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: 4145h
• Model NO.: NC38
• Transport Package: Wood Case or Stantdard Sea Packing
• Specification: I. D. 57-71MM
• Trademark: Tianhe
• Origin: China
• HS Code: 8431431000
• Production Capacity: 5000000PCS

Product Description

The Circulating Sub is connected between wellhead pipe string and ground circulating system. When casing is running or completed, the circulating sub can be connected to provide fluid circulation.

According to the application, circulating sub is connected between Kelly and casing or between casing and a hose.


Construction
The circulating sub during running casing is equipped with casing pin thread on one end and DP thread, DP box thread or union thread on the other.

Thread/ Model			I.D. (mm)	Length (mm)
Drill pipe box connection	Casing thread	Product  Code
NC38	5 BTC	J030701	57	580
	5 LTC	J030702
	5 STC	J030703
NC38	5 1/2 BTC	J030801	57	580
	5 1/2 LTC	J030802
	5 1/2 STC	J030803
NC50	7 BTC	J031201	71	610
	7 LTC	J031202
	7 STC	J031203
NC50	9 5/8 BTC	J031801	71	610
	9 5/8 LTC	J031802
	9 5/8 STC	J031803
NC50	10 3/4 BTC	J031901	71	610
	10 3/4 STC	J031902
NC50	13 3/8 BTC	J032001	71	650
	13 3/8 STC	J032002

Thread/ Model			I.D. (mm)	Length (mm)
Union thread	Casing thread	Product  Code
2″1502 Union	5 BTC	J040701	50.8	500
2″1502 Union	5 1/2 BTC	J040801	50.8	500
2″1502 Union	7 BTC	J041201	50.8	500
	7 LTC	J041202
2″1502 Union	9 5/8 BTC	J041801	50.8	500
	9 5/8 LTC	J041802
2″1502 Union	10 3/4 BTC	J041901	50.8	560
	10 3/4 STC	J041902
2″1502 Union	13 3/8 BTC	J042001	50.8	610
	13 3/8 BTC	J042002

Specifications - Circulating Sub With Drill Pipe Thread                                  Specifications - Circulating Sub With Hammer Union Thread

 

Detailed Photos

Certifications

Packaging & Shipping

 

Company Profile

Our Advantages

Tianhe principle is to offer high quality products at competitive price to benefit our customers and the industry in the long run.
We are the Leading manufacturer in China since 1973 for drilling /fishing /milling equipment for oil and gas.
We have established a complete quality control system, all products& equipments manufactured as per international standard and API standard.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time & Flexible payment terms.
3. Full range of drilling /fishing /milling equipment for oil and gas.
4. Timely after-sale service.
5. Imported International brands Machines such as Japan Mazak machining center, Austria WFL machining center etc
6. Complete quality control system, offices and testing equipment.
 

FAQ

Dear  customer,

Thanks for your time of visiting us on made in china, if you have any further questions and needs, please kindly inform us by inquiry online or contact us by below information.

We look forward to your kind reply, thanks very much.

Ms. Dongyan
Sales Manager

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.