Oil Gas Industry High Quality BHA API Standard and Spiral Drill Collar

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: Z01 Z02
• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Cast Steel
• Connection: Nc Reg
• Od mm: 79.4-279.4
• ID mm: 31.8-76.2
• Length mm: 9150-9450
• Hardness: 285-341
• Transport Package: Woden Box
• Specification: see the detail specification
• Trademark: Tianheoil
• Origin: China
• HS Code: 7318160000
• Production Capacity: 50000

Product Description

Product Description

Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension.

TIANHE Drill Collar is manufactured from AISI 4145H modified quenched and tempered steel and is heat treated along its entire length for uniform toughness and durability. Strict metallurgical tests are performed per specifications to ensure that the heat treatment produces consistent and maximum hardness through the depth of the bar.

Features and Benefits

• A hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs are guaranteed for evenly distributed 16 points in any cross sections at room temperature;
• Connections are phosphate coated after machining to protect the threads from corrosive elements and to prevent galling upon initial make-up;
• Thread roots are cold rolled on API and H-90 connections;
• Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connections

When ordering please specify:

• Drill collar OD and ID;
• Overall length;
• Connections required (size and type);
• Special features desired, for example: Slick or Spiral;
• Stress Relief Features;
• Slip and/or Elevator Recess; Hardbanding;

 

Detailed Photos

 

 

Product Parameters

 

Number And Connection Table	Product Code	Outside Diameter		Inside Diameter		Length mm	Bevel Diameter mm	Bending Strength Ratio
		mm in		mm in
NC23-31	Z01/Z02-01000	79.4	3 1/8	31.8	1 1/4	9150	76.2	2.57:1
NC26-35(2 3/8 IF)	Z01/Z02-02000	88.9	3 1/2	38.1	1 1/2	9150	84.5	2.42:1
NC31-41(2 7/8 IF)	Z01/Z02-04000	104.8	4 1/8	50.8	2	9150 or 9450	101.6	2.43:1
NC35-47	Z01/Z02-06000	120.6	4 3/4	50.8	2	9150 or 9450	114.7	2.58:1
NC38-50(3 1/2 IF)	Z01/Z02-07000	127	5	57.2	2 1/4	9150 or 9450	121	2.38:1
NC44-60	Z01/Z02-23000	152.4	6	57.2	2 1/4	9150 or 9450	144.5	2.49:1
NC44-60	Z01/Z02-23100	152.4	6	71.4	2 13/16	9150 or 9450	144.5	2.84:1
NC44-62	Z01/Z02-08000	158.8	6 1/4	57.2	2 1/4	9150 or 9450	149.2	2.91:1
NC46-62(4 IF)	Z01/Z02-08100	158.8	6 1/4	71.4	2 13/16	9150 or 9450	150	2.63:1
NC46-65(4 IF)	Z01/Z02-09000	165.1	6 1/2	57.2	2 1/4	9150 or 9450	154.8	2.76:1
NC46-65(4 IF)	Z01/Z02-09100	165.1	6 1/2	71.4	2 13/16	9150 or 9450	154.8	3.05:1
NC46-67(4 IF)	Z01/Z02-11000	171.4	6 3/4	57.2	2 1/4	9150 or 9450	159.5	3.18:1
NC50-67(4 1/2 IF)	Z01/Z02-11100	171.4	6 3/4	71.4	2 13/16	9150 or 9450	159.5	2.37:1
NC50-70(4 1/2 IF)	Z01/Z02-12000	177.8	7	57.2	2 1/4	9150 or 9450	164.7	2.54:1
NC50-70(4 1/2 IF)	Z01/Z02-12100	177.8	7	71.4	2 13/16	9150 or 9450	164.7	2.73:1
NC50-72(4 1/2 IF)	Z01/Z02-24000	184.2	7 1/4	71.4	2 13/16	9150 or 9450	169.5	3.12:1
NC56-77	Z01/Z02-13000	196.8	7 3/4	71.4	2 13/16	9150 or 9450	185.3	2.70:1
NC56-80	Z01/Z02-14000	203.2	8	71.4	2 13/16	9150 or 9450	190.1	3.02:1
6 5/8 REG	Z01/Z02-15000	209.6	8 1/4	71.4	2 13/16	9150 or 9450	195.7	2.93:1
NC61-90	Z01/Z02-16000	228.6	9	71.4	2 13/16	9150 or 9450	212.7	3.17:1
7 5/8 REG	Z01/Z02-17000	241.3	9 1/2	76.2	3	9150 or 9450	223.8	2.81:1
NC70-97	Z01/Z02-25000	247.6	9 3/4	76.2	3	9150 or 9450	232.6	2.57:1
NC70-100	Z01/Z02-18000	254	10	76.2	3	9150 or 9450	237.3	2.81:1
8 5/8 REG	Z01/Z02-19000	279.4	11	76.2	3	9150 or 9450	266.7	2.84:1
Slips and elevator grooves can be produced upon customers' request.

         
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.

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.