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API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H

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API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H

China API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H supplier
API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H supplier API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H supplier API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H supplier API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H supplier

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Product Details:

Place of Origin: China
Brand Name: TIPTOP
Certification: MTC
Model Number: Drill Collar

Payment & Shipping Terms:

Minimum Order Quantity: 5 pcs
Price: Negotiation
Packaging Details: Framework bundle
Delivery Time: 15-60 days
Payment Terms: T/T, L/C, D/A, D/P
Supply Ability: 1000 pieces per month
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Detailed Product Description
Material: 4145H Length: 30-31 Ft
Connection: API Connection Size: 2 7/8''~14''
Type: Slick Or Spiral Special Connection: Non API, Special

Downhole Drilling Tools, Slick /Spiral Drill Collar AISI 4145H

 

Tiptop provides a full range of slick and spiral drill collars in AISI 4145H or AISI 4145H modified steel. All the materials are heat treated in full length with best material quality.

 

Slick Drill Collar: we can produce from 2 7/8’’ OD to 14’’ OD drill collar with API, Non API, or special connections.

Spiral Drill Collar: we can produce three right-hand spiral grooves on drill collar. Spiral grooves decrease the volume of contact between well side and pipe, and it leads to reduce the occurrence of differential pressure sticking. The weight of spiral drill collar is 4% less than slick drill collar at small size. Spiral drill collar can be divided in to Type I and Type II according to spiral grooves.


Mechanical properties guaranteed to 1.5” below surface at ambient temperature; Enhanced fatigue resistance (threads cold-rolled, pin-relief groove and box bore back); Phos-coated to prevent galling; and Hardbanding is available upon request.

 

The upper radius of the elevator recess is cold-rolled to increase product life. Slip and elevator recesses can be used together or separately. Special drill pipe elevator designs can be supplied for automated handling operations to decrease non-productive time.

 

Please contact us to order your drill collar.

 

Tool Joint OD Bore Diameter B.S.R. Round Number Tensile Strength Impact Value Hardness
inch mm inch mm Length, Ft±6 in Yield Strength (0.25% pffset) Tensile Strength Elongation Charpy V Brinnel
NC23-31 3 1/8 79.4 1 1/4 31.8 2.57:1 30 min. 110,000 psi
(≥758N/mm2)
min. 140,000 psi
(≥965N/mm2)
min. 13% min. 59 ft-lbs
(≥80J)
285~341
NC26-35 (2 3/8 IF) 3 1/2 88.9 1 1/2 38.1 2.42:1 30
NC31-41 (2 7/8 IF) 4 1/4 104.8 2 50.8 2.43:1 30 or 31
NC35-47 4 3/4 120.7 2 50.8 2.58:1 30 or 31
NC38-50 (3 1/2 IF) 5 127.0 2 1/4 57.2 2.38:1 30 or 31
NC44-60 6 152.4 2 1/4 57.2 2.49:1 30 or 31
NC44-60 6 152.4 2 13/16 71.4 2.84:1 30 or 31
NC44-62 6 1/4 158.8 2 1/4 57.2 2.91:1 30 or 31
NC46-62 (4 IF) 6 1/4 158.8 2 13/16 71.4 2.63:1 30 or 31
NC46-65 (4 IF) 6 1/2 165.1 2 1/4 57.2 2.76:1 30 or 31
NC46-65 (4 IF) 6 1/2 165.1 2 13/16 71.4 3.05:1 30 or 31
NC46-67 (4 IF) 6 3/4 171.5 2 1/4 57.2 3.18:1 30 or 31
NC50-67 (4 1/2 IF) 6 3/4 171.5 2 13/16 71.4 2.37:1 30 or 31
NC50-70 (4 1/2 IF) 7 177.8 2 1/4 57.2 2.54:1 30 or 31 min. 100,000 psi
(≥689N/mm2)
min. 135,000 psi
(≥931N/mm2)
min. 13% min. 59 ft-lbs
(≥80J)
285~341
NC50-70 (4 1/2 IF) 7 177.8 2 13/16 71.4 2.27:1 30 or 31
NC50-72 (4 1/2 IF) 7 1/4 184.2 2 13/16 71.4 3.12:1 30 or 31
NC56-77 7 3/4 196.9 2 13/16 71.4 2.70:1 30 or 31
NC56-80 8 203.2 2 13/16 71.4 3.02:1 30 or 31
6 5/8 REG 8 1/4 209.6 2 13/16 71.4 2.93:1 30 or 31
NC61-90 9 228.6 2 13/16 71.4 3.17:1 30 or 31
7 5/8 REG 9 1/2 241.3 3 76.2 2.81:1 30 or 31
NC70-97 9 3/4 247.7 3 76.2 2.57:1 30 or 31
NC70-100 10 254.0 3 76.2 2.81:1 30 or 31
8 5/8 REG 11 279.4 3 76.2 2.84:1 30 or 31

 

API Oilfield Downhole Drilling Tools Slick / Spiral Drill Collar AISI 4145H

Contact Details
Xi'An Tiptop Machinery Co., Ltd.

Contact Person: Sales Manager

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