| After-sales Service: | Online |
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| Warranty: | 12month |
| Manufacturing Process: | Forging |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier API Spec Factory Supply Square/Hexagonal Kelly Pipe for Drilling 3 1/2"Kelly is the drive part of whole drill stem, it has two types, square kelly and hexagonal kelly and all of them are manufactured comfort to API Spec7-1 and SY/T6509-2000 criterion.
Our Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285-341. Kelly's end, drive cross-section and joint are all processed and tested comform to API criterion.The formulated process can ensure that the misalignment of the hole reaches the standard wall thickness. Kelly bars are manufactured according to API-7-1 Spec.
The Main Technical Specification of Kelly ( Square& Hexagonal )
|
Norminal Size (in) |
Length(ft) |
Top Upset Joint |
Bottom Upset Joint |
Bore D |
Drive Section |
|||
|
API BOX Thread Left Hand |
Du |
Right Hand Connections |
DL |
Across Corners |
Across Flates |
|||
|
3-1/2 |
40 |
6 5/8REG |
7 3/4 |
NC38(3 1/2IF) |
4 3/4 |
2 1/4 |
4.437 |
3 1/2 |
|
4-1/4 |
40 |
6 5/8REG |
7 3/4 |
NC46 (41F) NC50(4 1/2IF) |
6~6 3/8 6 1/8~6 3/8 |
2 13/16 |
5.500 |
4 1/4 |
|
5-1/4 |
40 |
6 5/8REG |
7 3/4 |
NC50 5 1/2FH |
7 |
3 1/4 |
6.750 |
5 1/4 |
|
6 |
40 |
6 5/8REG |
7 3/4 |
NC50 |
7 3/4 |
3 1/2 |
7.625 |
6 |
SEACO Oilfield Equip,is manufacturer & stockist of equipments,services and solutions to the upstream to downstream in oil & gas industry.We are aimed at helping customers to obtain the maximum from their each well.Providing our customers superior quality at the best value for products and services in order to ensure our customers' continued satisfaction.
Our main range includes but not limited below:
1).Rig packages: 250hp to 3000hp Land drilling rigs; Workover rigs(Fast-moving rigs are available).
2). Rig components: Crown block; Travelling block; Hook; Swivel; Rotary table; Drawwork; Driller's cabin; MCC/SCR house; MCC/VD house; Top drive ect...
3). Wellhead & Pressure control equipment: BOP; Chock & Kill manifold; Pressure hoses; BOP closing unit; Casing&Tubing head; X-Mas tree; Valves; Spools and flanges etc...
4). Solid control & Mud system equipment: Shale shaker; Desander; Desilter; Mud cleaner; Hopper; Centrifuge; Agitator; Mud tanks; Unions,ect...
5). Tubulars & Drilling strings: Drill pipe; HWDP; Drill collar; Kelly; Casing; Tubing; Pup joint; Sucker rod; Line pipes ect...
6). Tubular Running and handing tools: Elevator; Slip; Manual/Power tong; HPU; Bushing; Spinner; Bit breaker; Spider; Links; Stuibing guide; Thread protector ect...
7).Downhole/Fishing tools: Drilling & Fishing jar; Stabilizers; Hole opener; Overshot; Drilling bit ect...
8). Cement tools: Cement unit; Float collar; Float shoe; Liner hanger; Cement head etc...
9). Others: Air winch; Drilling line; Safety equipment; Mud pump spare parts; Rig parts; Fittings etc...
10). Commissioning and other services.
Quality Control:
Quality admits no compromises.For this purpose.we exercise strict control on the starting materials.We ensure our equipments are manufactured to the international standards,producing per API,ISO or/and other applicable quality standards.We accentuate QA and QC monitoring & control processes to guarantee the quality.Our efforts is for providing the Customers with the peace of mind that when the equipment arrives on location,it is ready to go to work,and it will perform reliably.
Suppliers with verified business licenses
Audited Supplier 
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