Introduction

KINGWELL is a professional manufacturer of medium and large forgings based in mainland China. We mainly focus on the manufacturing of big size special steel forging which are widely used in great equipment manufacturing industry of oil, electricity, chemical, shipping, metallurgy, machinery and military. 

The  well drilling equipment mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Drill stabilizers, Non magnetic drill stabilizers, Integral heavy weight drill pipes, welded heavy weight drill pipes, drill pipes, etc.

Application of product: 
Drill pipe is a portion of the overall drill string. The drill string consists of both drill pipe and the drill stem which is the tubular portion closest to the bit or downhole assembly. Drill pipe and drill stems can be differentiated in that the drill pipe is quite flexible and produced in longer segments whereas the drill stem is much more rigid and manufactured in shorter task specific segments.

Superiority of our product:

KINGWELL's integral heavy weight drill pipe drilling tool are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.

Production Specification:

1. Product: well drilling equipment  heavy weight drill pipe 

2. Raw material: AISI 4145H

3. Diameter: 2 7/8"-6 5/8" 
5. Length: 9300mm/13500mm 
7. Delivery time: 30 days after receive the deposit. 
8. Process:  EAF + LF + VD +(ESR) + Forged + Heat Treatment (optional)
9. Delivery condition: Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining.
10.SURFACE FINISHES: Black, Peeled, Turned & Polished
12.Payment: 30% advance by T\T; Balance pay before the shipment against shipping documents or irrevocable LC at sight
13.Technical Data: Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement

The following reports provide to the customers to assure our quanlity:

a) Chemical Composition Report

b) Mechanical Properties Report

c) Dimension Test Report

d) Hardness Test Report

e) Heat Treatment Chart Report

f ) UT, MT Test Report

g) Or Others according to clients' demand

We are dedicated to supply quality product and service for you. Welcome to contact us

Specification of integral heavy weight drill pipe

Products Photos:

Company Introduction

XI'AN KINGWELL OILFIELD MACHINERY Co., Ltd. (KINGWELL) is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provides complete solutions.

With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, drilling tools, DST tools and Solid control products.

KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation; our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices. Our products have been exported to Europe, American and Middle East.