Petrolem API 7-1 Rotary Kelly Square or Hexagona Kelly Between Rotary Table and Swivel

• After-sales Service: 1 Year
• Warranty: 1 Year
• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: kelly
• Top Connection: Reg Lh
• Nominal Size: 2 1/2-6 Inch
• Square ID: 1 1/4- 3 1/4 Inch
• Hex ID: 1 1/4- 3 1/2 Inch
• Transport Package: Woden Box
• Specification: see the detail specification
• Trademark: Tianheoil
• Origin: China
• HS Code: 8431431000
• Production Capacity: 50000

Product Description

Product Description

Kelly is main driver of the whole drill string. It transmits torsional energy from the rotary table through the drill string to the bit at the bottom of the hole. TIANHE Kelly is a long square or hexagonal, precision machined heavy steel bar that is supported by the swivel through the rotary table and is connected to the first joint of drill pipe in the drill string.

Straightness of the kelly is very crucial in the manufacturing process, thus straightness inspections are carried out before, during and after each machining operation. The flats are precision-milled to API specifications. All milling processes are performed on specially designed rigid Kelly mills to ensure tight tolerances and high quality drive sections. Each TIANHE Kelly is furnished with a pressed steel thread protectors.


Features and Benefits

• Manufactured from AISI 4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341BHN and a minimum average Charpy impact value of 40 ft-lbs;
• Ends and drive sections, IDs and connections machined and inspected to API specifications;
• Ultrasonic inspection is performed on all sections;
• Shipped in a protective steel-cased scabbard;

When ordering please specify:

• Kelly type (square or hexagonal);
• Nominal size and overall length;
• Upper and lower connections.

Detailed Photos

 

 

Product Parameters

 

Nom Size (in)	Square kelly Product Code	Hexagonal Kelly Product Code	Top Connection(LH)		Bottom Connection		I.D.(in)		Drive Section(in)
			Standard  O.D.(in)	Optional   O.D.(in)	Square    O.D.(in)	Hex.   O.D.(in)	Square	Hex.	A	B
2 1/2	Z03-130000		6 5/8 REG LH    7 3/4	4 1/2 REG LH 5 3/4	NC26 85.7		1 1/4		3 1/4
3	Z03-130100	Z04-130000	6 5/8 REG LH    7 3/4	4 1/2 REG LH 5 3/4	NC31 4 1/8	NC26    3 3/8	1 3/4	1 1/4	3 3/8	3 3/8
3 1/2	Z03-130200	Z04-130100	6 5/8 REG LH  7 3/4	4 1/2 REG LH 5 3/4	NC38 4 3/4	NC31    4 1/8	2 1/4	1 3/4	4 7/16	4
4 1/4	Z03-130300	Z04-130200	6 5/8 REG LH    7 3/4	4 1/2 REG LH 5 3/4	NC46 6 1/4	NC38    4 3/4	2 13/16	2 1/4	5 1/2	4 4/5
	Z03-130400	Z04-130300	6 5/8 REG LH    7 3/4	4 1/2 REG LH 5 3/4	NC50 6 3/8	NC38    4 3/4	2 13/16	2 1/4	5 1/2	4 4/5
5 1/4	Z03-130500	Z04-130400	6 5/8 REG LH    7 3/4		5 1/2 FH 7	NC46    6 1/4	3 1/4	3	6 3/4	5 29/32
	Z03-130600	Z04-130500	6 5/8 REG LH    7 3/4		NC56 7	NC50    6 3/8	3 1/4	3 1/4	6 3/4	5 29/32
6		Z04-130600	6 5/8 REG LH    7 3/4			5 1/2 FH 7		3 1/2		6 13/16
		Z04-130700	6 5/8 REG LH    7 3/4			NC56 7		3 1/2		6 13/16

 

Company Profile

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.

As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.

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.

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.

We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.

Certifications

Packaging & Shipping

All the packing will be suitable for export packing. All precautions will be taken to protect the cases from damage during overseas transportation,so as to receive them under proper conditions at the final destination.Wooden case packaging materials will be treated.
 

 

Our Advantages

1)China Manufacturer

2)50years of the production experience

3)High Qualtiy contol procedure

4)API Certified
 

FAQ

1) How can I place order?

A: You can contact us by email about your order details, or place order on line.

2) How can I pay you?

A: After you confirm our PI, we will request you to pay. T/T or L/C detc payment terms are acceptable.

3) What's the order procedure?

A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid  payment or deposit before we go into production. After we get the deposit, we start to process the order.  Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.