| After-sales Service: | on Site on Line |
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| Warranty: | 12 Months |
| Certification: | ISO 9001:2000 |
| 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 Heavy Weight Drill Pipe
1, Material 4145H API 7 Standard
2,Reliable Quality with competitive price
3,Avaliable in stocks if not byg quantities
Our Heavy Weight Drill Pipe (HWDP) was developed to provide a gradual transition from the drill collars to the drill pipe. This HWDP helps to prevent stress concentration at the top of the drill collar.It also allow drilling at higher rpms, reducing torque and differential pressure sticking. The HWDP is intended primarily for directional drilling. As it bends easily, it simplifies directional control and minimizes connection fatigue problems common to high-angle or horizontal drilling. The reduced number of pipe failures and increased drill-stem service also make HWDP appropriate for some straight-hole applications. Various combinations of HWDP, drill collars, and standard drill string can be created to meet the challenge of severe drilling conditions.
We can supply integral HWDP from 2-7/8" to 6-5/8". Also we can supply friction welded HWDP, which is assembled with AISI 1340 steel pipe and AISI 4145H or 4137H tool joints.
1. We have complete quality management system. All production is carried out stringently in accordance with quality management system. We were API and QHSE certified.
2. We are provided with complete testing equipments for magnetic powder inspection, ultrasonic inspection, rigidity inspection, ultrasonic wall thickness inspection, etc.
3. We also have complete experiment facilities undertaking experiments like stretching, impacting, bending, hardness, chemical components and crystal phase.
4. All the staffs in charge of inspection and experiment are trained and qualified. They all have the qualification certificates issued by inspection authorities. For all users, no matter for choosing our products or receiving or using our products, our company makes the following promise:
1. Quality Guaranntee:
1.1 We set up our quality management system according to GB/T19001-2000 and API standards, and keep the system functioning efficiently and constantly improve our quality.
1.2 We make the products exactly as per the criteria, specifications and technologies stipulated in the contract and agreement. We guarantee our products are 100 per cent qualified to meet users' needs.
2. Service Pledges:
We shall reply to you within 24 hours after receiving your complaints or service requirements.
We appreciate customers' support and help to our company. We shall continue focusing on product quality and pay back the widespread users with our top products and services. Welcome to visit Dongying Seaco OIlfield Equip.CO!
| FAQ |
| Q: How can I place order? |
| A:You can contact us by email about your order details, or place order on line |
| Q: How can l pay you? |
| A:After you confrm our Pl, we will request you to pay.T/T (HSBC bank) and Paypal, Western Union are the most usual ways we are using |
| Q: What's the order procedure? |
| A: First we discuss order details, production details by email or TM. Then we issue you an Pl for your confirmation.You will be requested to do prepaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25 days if we don't have the items in stock. Before production has been fnished,we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you. |
| Q:How do you take care when your clients received defective products? |
| A:replacement. If there are some defective items, we usually credit to our customer or replace in next shipment. |
| Q: How do you check all the goods in the production line? |
| A:We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure. |
Suppliers with verified business licenses
Audited Supplier 
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