Company Details

  • Hejian Deris Petroleum Drilling Equipment Co.,Ltd.

  •  [Hebei,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Retailer , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO9001, API, CE
  • Description:API 7-1 Spiral Drill Collar,Oil Well Drilling Collar,Oil Well Spiral Drill Collar
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Home > Products > Drill Collar > Spiral Drill Collars > API7-1 Oil Well Drilling Tools Spiral Drill Collar

API7-1 Oil Well Drilling Tools Spiral Drill Collar

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    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 5 Piece/Pieces
    Delivery Time: 15 Days

Basic Info

Model No.: Oil Well Drilling Spiral Collar

Customized: Customized

Surface Treatment: Polish

Type: Spiral Drill Collar

Certification: API

Usage: Well Drilling

Material: Carbon Steel

Material:: AISI 4145H

OD:: 209.9mm (8 1/4 Inch)

ID:: 71.4mm (2 13/16 Inch)

Connection:: 6 5/8" REG

Hardfacing: Arnco 100XT, Arnco 300XT,B

Bevel Diameter: 195.7 Mm

Length: 9150 Or 9450 Mm

Product Name: Spiral Drill Collars

Tensile Strength BMpa: 930

Internal Plastic Coating: TC2000,DPC200

Additional Info

Packaging: bundle or as client demand

Productivity: 180 pcs per Month

Brand: Deris

Transportation: Ocean,Land,Air,Express

Place of Origin: Hebei

Supply Ability: 180 pcs per Month

Certificate: API 7-1

HS Code: 8431431000

Port: Tianjin,Beijing,Shanghai

Product Description

Spiral Drill Collars during drilling to prevent the drilling pressure differential block, spiral grooves may allow slurry flows freely around the Drill Collar to prevent blocking the formation of the equilibrium pressure, so as to effectively prevent the phenomenon of differential sticking. Can reduce the area of contact with the borehole wall, which can effectively reduce the possibility of generating a differential pressure is blocked. The reason why the spiral drill collars are widely used because of its own characteristics of the decision, this special Spiral Drill Collar wall and the tube to reduce the contact area, thus avoiding the drill string "sticking" phenomenon. Spiral drill collar is our product line in one.


Drill collar dimension Specifications
Threadtype D/OD D/ID L mm Taiwan shoulder
chamfer diameter
Reference
bending
strength ratio
mm in mm in DF mm
NC23-31 79.4 3 1/8 31.8 1 1/4 9150 76.2 2.57:1
NC26-35(2 3/8IF) 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42:1
NC31-41(2 7/8IF) 104.8 4 1/8 50.8 2 9150or9450 100.4 2.43:1
NC35-47 120.7 4 3/4 50.8 2 9150or9450 114.7 2.58:1
NC38-50(3 1/2IF) 127.0 5 57.2 2 1/4 9150or9450 121.0 2.38:1
NC44-60 152.4 6 57.2 2 1/4 9150or9450 144.5 2.49:1
NC44-62 158.8 6 1/4 57.2 2 1/4 9150or9450 149.2 2.91:1
NC46-62(4IF) 158.8 6 1/4 57.2 2 13/16 9150or9450 150.0 2.63:1
NC46-65(4IF) 165.1 6 1/2 71.4 2 1/4 9150or9450 154.8 2.76:1
NC46-65(4IF) 165.1 6 1/2 57.2 2 13/16 9150or9450 154.8 3.05:1
NC46-67(4IF) 171.4 6 3/4 71.4 2 1/4 9150or9450 159.5 3.18:1
NC50-67(4 1/2IF) 171.4 6 3/4 57.2 2 13/16 9150or9450 159.5 2.37:1
NC50-70(4 1/2IF) 177.8 7 71.4 2 1/4 9150or9450 164.7 2.54:1
NC50-70(4 1/2IF) 177.8 7 57.2 2 13/16 9150or9450 164.7 2.73:1
NC50-72(4 1/2IF) 184.2 7 1/4 71.4 2 13/16 9150or9450 169.5 3.12:1
NC50-77 196.8 7 3/4 71.4 2 13/16 9150or9450 185.3 2.70:1
NC50-80 203.2 8 71.4 2 13/16 9150or9450 190.1 3.02:1
6 5/8REG 209.6 8 1/4 71.4 2 13/16 9150or9450 195.6 2.93:1
NC61-90 228.6 9 71.4 2 13/16 9150or9450 212.7 3.17:1
7 5/8REG 241.3 9 1/2 76.2 3 9150or9450 223.8 2.81:1
NC70-97 247.6 9 3/4 76.2 3 9150or9450 232.6 2.57:1
NC70-100 254.0 10 76.2 3 9150or9450 237.3 2.81:1


AB Type Drill collar mechanical properties
OD scope Yield strength
Mpa
Tensile strength
Mpa
Elongation
%
Brinell har
dness HB
Charpy im
pact J
mm in
79.4-174.6 3 1/8-6 7/8 ≥758 ≥965 ≥13 ≥285 ≥54
177.8-279.4 7-11 ≥689 ≥931 ≥13 ≥285 ≥54

Oil-Well-Drilling-Tools-Non-magnetic-Spiral


Spril drill collar

My company information

Hejian Deris Petroleum drilling equipment Co., Ltd was established in 2000, located in Hejian City Junziguan Industrial Park, next to National Highway 106, close to Tianjin Port, Beijing Airport, convenient transportation and superior location. The company covers an area of 30 acres and a factory building of 15,000 square meters.


Specializing in the production and sales of Drilling Tools such as Tricone Bit, PDC drill bits, Hole Opener, roller cone drills, hammer and hammer bit, drill pipes, drill collars, etc. A professional design, production, inspection and foreign trade sales team has been established. .

Products are sold to the United States, Canada, Russia, Kazakhstan, Iran, Qatar, Sweden, Germany, Australia, Singapore, Mexico, Colombia and other more than 30 countries. The sales volume reached 15,000 pieces of the roller cone, and the three-cone drill bit 5000 achieved.

Our company is planning to build a new factory, adding 3 production lines, CNC machine tools, drilling machines, milling machines, quality testing equipment, etc. to ensure quality and timely delivery. Make sure that every quality product meets customer needs.

Certificate

drill-pipe-tool-joint-production-process

iadc 127 tricone bit

Package and shipping

Package Type : wooden case ,also be packaged according to customers requirement

Transportation : by sea , by air or land transportation . Less than 50kg shipping by courier better
Delivery : If we have stock, the delivery time will need about 2~3 working days. In general, common size tricone bits and PDC Bit , we have stock.
If we have no stock, such as the tci reamer and PDC Hole Opener, it will be 7-10 working days in total.

Drill Collars

Spiral Drill Collar With ApiSpiral Drill CollarsDrilling Tools

If you are interested in our products please send Email to us

tricone bit api

How to complete the whole deal Step:

1. Firstly decide the design, material and color
2. Decide the size in accordance with client's requirement and our recommendation
3. We will give the best offer.
4. Client's accept the offer and we send proforma invoice.
5. Client transfers 30%-50% deposit and production begins
6. After production, we will send ready products photo
7. After client's confirmation, we will arrange shipment, and send copy shipping documents like B/L,commercial invoice and packing list
8. Client transfer balance payment and we will send original documents by express or Telex Release


FAQ

1. Are you a manufacturer?
Yes, we are a professional driiling tools and machine parts manufacturer.
And we have a professional R&D team.
2. What's products your company can provide?
We can provide drilling bucket,Core Barrel,auger,drilling teeth,casing series,rotary rig accessories ect.
3. How do you control the quality of your products?
First, we use good steel GB-Q345B.Our welding stick is flux-cored wire.
Second, we have strict quality controlling system;
Third, we promise good quality and after-sales service.
4. Can you produce according to special requirement?
Yes, we can produce customized products.
5. How is your product price?
We can give you factory price,more quantity,better price!

drill collars


Looking for ideal API 7-1 Spiral Drill Collar Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Oil Well Drilling Collar are quality guaranteed. We are China Origin Factory of Oil Well Spiral Drill Collar. If you have any question, please feel free to contact us.

Product Categories : Drill Collar > Spiral Drill Collars

Product Images
  • API7-1 Oil Well Drilling Tools Spiral Drill Collar
  • API7-1 Oil Well Drilling Tools Spiral Drill Collar
  • API7-1 Oil Well Drilling Tools Spiral Drill Collar
  • API7-1 Oil Well Drilling Tools Spiral Drill Collar
  • API7-1 Oil Well Drilling Tools Spiral Drill Collar
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