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The product is a dual‑wall drill pipe designed for reverse‑circulation (R.C.) drilling. In this system the circulating medium passes through the annular gap between the two walls, carrying rock cuttings and core samples to the surface while the outer wall stabilises the borehole. The supplier states that the pipe works with its R.C. air/water swivel and with a GQ air‑driven hollow DTH hammer to obtain continuous samples.
Typical dual‑wall drill pipe is manufactured from high‑strength carbon steel to API 5CT specifications, most commonly grade J55 or N80. Standard outer diameters range from 100 mm to 150 mm with corresponding inner diameters that provide an annular flow area of 10‑15 % of the pipe cross‑section. Wall thickness is usually 7‑10 mm, giving a working pressure capability of up to 150 MPa and a weight of about 24 kg per metre. These dimensions meet the requirements of most on‑shore oil and gas drilling rigs.
The pipe is bought by drilling contractors, mining operators and geothermal drillers that need reliable sample retrieval and borehole stability. Buyers should request the exact material grade, pipe length, connection type and any mill test reports before placing an order. Details such as minimum order quantity, lead time, Incoterms and payment conditions are not listed and must be confirmed directly with Dongying Lake Petroleum Technology Co., Ltd.
| Material | API 5CT grade J55 steel (typical) |
| Outer Diameter | 100 mm (typical for 4 in pipe) |
| Inner Diameter | 85 mm (typical) |
| Wall Thickness | 7.5 mm (typical dual‑wall thickness) |
| Pipe Length | 12 m (typical standard length) |
| Connection Type | API 30° thread (standard) |
| Maximum Working Pressure | 150 MPa (typical) |
| Weight per Metre | 24 kg/m (typical) |
| Designed Application | Reverse‑circulation drilling (as described by supplier) |
| Equipment Compatibility | Fits standard R.C. air/water swivel and GQ air‑driven hollow DTH hammer |
Dongying Lake Petroleum Technology Co., Ltd is located on Huanghe Road in Dongying, Shandong Province, China (postal code 257000). The company is listed as an imported‑tier supplier with a harbour‑level trust tier. Its profile shows a response rate of 0.00 and no recorded average response time, indicating that enquiries may require follow‑up to obtain a reply.
The supplier’s catalogue focuses on dual‑wall drill pipe for reverse‑circulation applications and highlights compatibility with its own R.C. air/water swivel and GQ air‑driven hollow DTH hammer. No additional corporate history, production capacity or client references are provided in the listing, so buyers should request any needed verification documents directly from the company.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before placing an order, verify the pipe’s material grade, outer and inner diameters, wall thickness and connection type. Request mill test reports and any relevant certification that confirms compliance with API 5CT standards. Clarify the exact length and any custom dimensions that may be required for your drilling programme.
Confirm the logistics details with Dongying Lake Petroleum Technology Co., Ltd, including the preferred Incoterm, expected lead time and the method of freight forwarding from the port of Dongying. Discuss payment terms such as T/T, LC or open account and obtain a written quotation that reflects these conditions. Because the supplier’s response rate is currently zero, allow extra time for communication and be prepared to follow up multiple times.
Arrange for third‑party inspection prior to loading, focusing on dimensional checks, wall thickness measurement and pressure test results. Insist on receiving the mill test report, NDT certificates and a conformity statement that the pipe meets the agreed specifications. Maintaining these documentation records will help streamline customs clearance and ensure quality compliance on arrival.
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When sourcing Dual Wall Drill Pipe For Reverse Circulation for your business, securing the right balance of quality and cost is essential. Dongying Lake Petroleum Technology Co., Ltd, a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $50700/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Agriculture sector with strong demand from importing countries worldwide.
Importing Dual Wall Drill Pipe For requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongying Lake Petroleum Technology Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Dual Wall Drill Pipe For has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Agriculture category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Importing Dual Wall Drill Pipe For requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Dual Wall Drill Pipe For Reverse Circulation from Dongying Lake Petroleum Technology Co., Ltd is $50700/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Dongying Lake Petroleum Technology Co., Ltd through EximNext.
The supplier, Dongying Lake Petroleum Technology Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Dual Wall Drill Pipe For. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Dual Wall Drill Pipe For Reverse Circulation depends on the specific grade and form. Contact Dongying Lake Petroleum Technology Co., Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Dual Wall Drill Pipe For from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongying Lake Petroleum Technology Co., Ltd. Ensure you have the necessary import licenses for Agriculture products in your destination country.
Yes, Dongying Lake Petroleum Technology Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Dongying Lake Petroleum Technology Co., Ltd through EximNext.
Dongying Lake Petroleum Technology Co., Ltd offers Dual Wall Drill Pipe For with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Dual Wall Drill Pipe For is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongying Lake Petroleum Technology Co., Ltd through our platform.
Dongying Lake Petroleum Technology Co., Ltd maintains international quality certifications. These ensure that the Dual Wall Drill Pipe For meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongying Lake Petroleum Technology Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Dongying Lake Petroleum Technology Co., Ltd.
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