Oil Well Drilling Tool API Circulating Crossover Sub

• Standard: API
• Length: 580mm-650mm
• Usage: Oil Mining, Well Drilling
• Material: Alloy
• Operation Pressure: Atmospheric Pressure
• Surface Treatment: Spray-Paint
• Model NO.: I. D 57mm
• Product Name: Circulating Sub
• Others: See The Product Description
• Transport Package: Standard
• Specification: I. D 20mm-76mm
• Trademark: Tianhe
• Origin: China
• HS Code: 8431431000
• Production Capacity: 50000

Product Description

Product Description

About circulating sub

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.

Product Parameters

Specifications - Circulating Sub With Drill Pipe Thread

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
	13 3/8 STC	J032002

Specifications - Circulating Sub With Hammer Union Thread

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

 Detail Photoes




 

Packaging & Shipping

Company Profile

Tianhe Oil Group is an integrated corporation engaged in petroleum equipment design, manufacture, sale, rental, and maintenance, oil engineering services and oilfield exploration and development.Tianhe Oil Group has 5 business scopes throughout 50 countries and regions as follows:

1. Drilling Tools Scope :

The first scope supports the design, manufacture, sale, rental and maintenance of drilling tools such as drill pipe, heavy weight drill pipe, drill collar, kelly, stabilizers, downhole motors, jars, absorbers, fishing tools, milling tools and valves etc.
 

       2.Rigs and Offshore Services Scope :
 

This division supports the design, manufacture, sale, rental, maintenance and other engineering services for skid-
mounted rigs, mobile drilling rigs, workover rigs, offshore drilling platforms and platform cranes etc.
 

      3.Oilfield Engineering Services Scope:
 

This division provides an integrated oilfield engineering support for drilling engineering services, downhole operation services, logging services, directional drilling services, cooperative cementing services and cooperative well completion services etc.
 

      4.Oilfield Exploration and Development Scope :
 

This scope sources, acquires and manages oilfield exploration and development projects, via wholly owned, joint ventures or profit sharing company.
 

      5.Processing Trade with Provided Materials Scope:

Taking advantage of the geographical logistics of Shanghai Free Trade Zone and Yangshan Port, Shanghai Tianhe undertakes processing on giving materials or samples, seeking the common development of diversified forms such as cooperation or joint venture, both domestically and internationally.
Over the years, Tianhe Oil Group, regarding "people-oriented, technology first, continuous improvement, casting brand" as our management guidance, continuously strives to innovate and improve our products and expand business related to oilfield. Meanwhile, The company also increases investment in technology research and development, always takes providing the global customers with the best technical products and services as our company's mission.
Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.
Our manufacturing facilities are well equipped with four automated induction heat treatment lines and dozens of other types of heat treatment ovens and well furnaces to ensure full coverage of heat treatment requirements by different products to achieve the required mechanical properties.
In order to ensure the quality consistency and interchangeability of high precision components, Tianhe has introduced WFL 5-axis Linkage Turning & Milling Machining Center from Austria, Mazak's turn milling machining center from Japan and the Haas vertical machining center from USA. These processes are facilitated with precise quality inspection equipment such as the Brunker OES Metal Analyzers from Germany, Ultrasonic and Magnetic Powder Flaw Detector and high precision Hexagon Three Coordinate Measuring Machine and Farco Portable Three Coordinate Measuring Machine.
So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.

 

FAQ

1.Q:Are you a factory or trading company?
We are a factory and the Top 3 of oildrilling equipment manufacturer.
2.Q:Where is your factory located? 
We locate in Heilongjiang Province, China.
3. Q:What do your factory do regarding quality control?
From material to products, we inspect each process to keep good quality.
And SGS inspection can be accepted.
4.Q:How about MOQ ?
We have stock of common sizes at hand, so even few ton is accepted.
5.Q:How about payment ?
Both T/T and L/C can be accepted.
6.Q: How long does your warranty?
We can assured the quality within 90 days after receiving the cargoes.