API Spec 7-1 Drilling Collar -Downhole Drilling Tools

Model: KINGWELL Drill Collar 009
Place of Origin: Shaanxi,China (Mainland)
Standard: API Spec 7-1
Material: NOn-mag material
Size: 9-1/2"
Drill Collar Nominal size: 7-5/8REG
Bending Strength ratio: 2.81:1
length: 9.150-9.450m
Color: Customized
Brand Name: Kingwell
Supply Ability: 1000 sets per month
Usage: offshore drilling


basketAdd to Basket  Edit

Share |

Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:10.0 USDProduction Capacity:1000 set per month
Payment Terms:L/C, D/A, T/TDelivery Date:30 days after received...
Min. Order:1 Piece/Pieces
Means of Transport:Ocean, Air, Land

API Spec 7-1 Drilling Collar -Downhole Drilling Tools

API Spec 9-1/2" Drilling Collar

1.Standard: API Spec 7-1

2.Material: AISI 4145 H Modified Alloy Steel


4.Export Percentage: 95%

5.Supply Ability: 1000 sets per month
6. Main Market: Middle East, North America, Europe
7. Delivery time: 10 days in stock, 30 days after advance payment

Drilling Collar Generally Introduction:

Drill Collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. Kingwell brand drill collars are manufactured strictly according with API Spec7-1 and SY5411 standard.   

Detailed Specification:

Technical specifications and parameters
Drill Collar NumberO.D.I.D.Length 
Bevel DiameterRef bend g Strength ratio
NC23-3179.43 1/831.81 1/2915076.22.57:1
NC26-35(2 3/8 IF)88.93 1/238.11 1/2915082.92.42:1
NC31-41(2 7/8 IF)104.84 1/850.829150100.42.43:1
NC35-47120.64 3/450.829150114.72.58:1
NC38-50(3 1/2 IF)127.0557.22 1/49150121.02.38:1
NC44-60152.4657.22 1/49150 & 9450144.52.49:1
NC44-60152.4671.42 13/169150 & 9450144.52.84:1
NC44-62158.86 1/457.22 1/49150 & 9450149.22.91:1
NC46-62(4IF)158.86 1/471.42 13/169150 & 9450150.02.63:1
NC46-65(4IF)165.16 1/257.22 1/49150 & 9450154.82.76:1
NC46-65(4IF)165.16 1/271.42 13/169150 & 9450154.83.05:1
NC46-67(4IF)171.46 3/457.22 1/49150 & 9450159.53.18:1
NC50-67(4 1/2 IF)171.46 3/471.42 13/169150 & 9450159.52.37:1
NC50-70(4 1/2 IF)177.8757.22 1/49150 & 9450164.72.54:1
NC50-70(4 1/2 IF)177.8771.42 13/169150 & 9450164.72.73:1
NC50-72(4 1/2 IF)184.27 1/471.42 13/169150 & 9450169.53.12:1
NC56-77196.87 3/471.42 13/169150 & 9450185.32.70:1
NC56-80203.2871.42 13/169150 & 9450190.13.02:1
6 5/8 REG209.68 1/471.42 13/169150 & 9450195.72.93:1
NC61-90228.6971.42 13/169150 & 9450212.63.17:1
7 5/8 REG241.39 1/276.239150 & 9450223.82.81:1
NC70-97247.69 3/476.239150 & 9450232.82.57:1
NC70-1002541076.239150 & 9450237.32.81:1
8 5/8 REG279.41176.239150 & 9450266.72.84:1

Drilling Collar Detail:

Types of Drilling Collar we offer:

1. Api spiral drill collar

2. Slick drill collar

3. Non-magnetic drill collar

Company Profile:

Xi'an Kingwell Oilfield Machinery Co.,Ltd is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provide complete solutions.

With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, 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.
It is a professional supplier for oilfield products according to the API standard. We exporting ALL KINDS OF OILFIELD MACHINERY AND TOOLS with super Quality and Competitive Price in CHINA.   


Design & Development

Kingwell has an ongoing relationship with Xi'an Petroleum University and built up long term cooperation with China Aerospace Group for more than 10 years. Design Department is familiar with CAD and Pro-E facilities and has on rolls qualified & experienced engineers. Now, they are engaged in development of new products as required in the market place. Kingwell' products are validated in-house in a Test Well, a Sub-surface Type Test Facility with simulated well conditions up to 15000 psi Differential pressure , 400°F and Max 450°F.

Training and Field Supports

We have a team of well qualified and experienced field support personnel for Training. According to customer's requirements, we provide operation training service for our customers who purchase our products.

Generally speaking, our customer training mainly includes followings:

1) To know the basic knowledge of the products, such as the usage, the working environments, the working principles, the structure, ect.

2) To learn the operation and use of products.

3) To master the basic requirement of designs of tool strings and of testing operation.

Product delivery

Payment:TT/LC:30% advance payment.70%before shipment

Warranty: Warranty period is 1 year after installation.

Origin: China

Minimum order: 1 set

Packaging: wood case or steel carton

Delivery Date: within 1-2 month(s) after receiving prepayment

Logo: KW, we can produce according to customer requirements.

Technical Documents: We can provide technical documents according to your requirements.

Additional service: Customers are served to test our products in our factory upon request.

Category: Drill Pipe/HWDP/Drill Collar

Related Category: Drill Stabilizer and Stabilizer Forging  Drill Tools