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Drilling Free Stage Cementing Collar
The Drilling Free Stage Cementing Collar offered by Dongying Lake Petroleum Technology Co., Ltd is a specialised downhole tool designed for two‑stage cementing operations without the need to halt drilling. Manufactured in Dongying, China, the collar incorporates a built‑in hollow plug, first‑stage plug, shut‑off baffle, free‑fall opening plug and closing plug to achieve independent cementing stages. Key dimensions include an API 5 ½ in (139.7 mm) connection thread and an overall length of 1090 mm, while pressure ratings reach up to 25 MPa sealing capacity. The device is engineered to allow drilling to continue while cementing actions are performed, improving operational efficiency.
The collar’s components are fabricated from premium‑grade rubber and aluminium, materials commonly used in downhole equipment for their wear resistance and corrosion tolerance. Typical industry practice specifies an operating temperature range of - 20 °C to 120 °C for such tools, which aligns with the material selection. Standard design tolerances for the API 5 ½ in thread are maintained to ensure compatibility with existing casing strings.
Oil‑field service companies and drilling contractors that require rapid stage cementing without pulling the drill string are the primary users of this collar. Dongying Lake Petroleum lists flexible MOQ options and indicates that the product can be shipped under FOB or CIF terms with payment by L/C or T/T, though exact quantities and lead times should be confirmed directly. Prospective buyers are advised to request the detailed engineering drawing, pressure test certificates and to arrange a pre‑delivery inspection to verify compliance with API standards.
| Connection thread | API 5½ in (ltc) with max OD 174 mm (supplier data) |
| First‑stage plug opening pressure | 2 MPa (supplier data) |
| Free‑fall plug opening pressure | 6 ± 1 MPa (supplier data) |
| Closing plug closing pressure | 6 ± 1 MPa (supplier data) |
| Sealing capacity | 25 MPa (supplier data) |
| Rated load | 120 t (supplier data) |
| Drill‑out inner diameter | 118 mm (supplier data) |
| Overall length | 1090 mm (supplier data) |
| Operating temperature range | Typical - 20 °C to 120 °C (standard for downhole tools) |
| Material construction | Premium rubber and aluminium alloy (typical for cementing collars) |
Dongying Lake Petroleum Technology Co., Ltd is based at Huanghe Road, Dongying 257000, China and is classified as an imported supplier with a harbour‑level trust tier. The platform profile records a response rate of 0 % and an average response time of zero hours, suggesting that communication may require proactive follow‑up. The company’s catalogue highlights the Drilling Free Stage Cementing Collar as a key product for advanced cementing solutions.
No further corporate history, employee numbers or revenue data are disclosed in the supplier profile, and no specific client references are provided. All trade conditions, including MOQ flexibility, incoterms and payment options, are outlined in the product description and should be verified with Dongying Lake Petroleum before finalising a purchase. Buyers are encouraged to request engineering drawings, pressure test certificates and to schedule a pre‑shipment inspection as part of their due‑diligence.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing Drilling Free Stage Cementing Collar from Dongying Lake Petroleum Technology Co., Ltd - China Import Guide
Importers should first obtain the full engineering drawing and verify that the API 5½ in thread matches the casing to be used. Request the pressure‑test certificates and, if possible, a recent API 7‑1 test report to confirm the 25 MPa sealing capacity before committing to purchase. Confirm the material specifications, especially the rubber and aluminium grades, to ensure they meet the required corrosion‑resistance standards for the intended well environment.
Logistics planning must include clarification of the preferred incoterm - FOB or CIF - and an agreed payment method such as L/C or T/T. As the supplier’s response rate is recorded as zero, allow additional time for quotation preparation and negotiate realistic lead‑time expectations directly with Dongying Lake Petroleum. Align shipment schedules with the project’s drilling programme to avoid downtime.
Upon arrival, arrange for a third‑party inspection to check the overall length, thread integrity and the condition of the plugs and baffle. Retain the inspection report together with the pressure‑test certificates and material test reports as part of the import documentation. These records will support customs clearance and provide assurance of product conformity before field deployment.
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30 suppliersBuy & Import Drilling Free Stage Cemen — Wholesale Supply from China
Securing a reliable supply chain for Drilling Free Stage Cementing Collar is critical for maintaining your business operations. Dongying Lake Petroleum Technology Co., Ltd, a supplier located in China, provides high-quality Drilling Free Stage Cemen ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Mining Machinery, Equipments & Spare Parts industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Drilling Free Stage Cemen from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Dongying Lake Petroleum Technology Co., Ltd. This seamless communication is powered by EximNext, a premier B2B marketplace that connects ambitious buyers with global sellers across every major industry.
About Dongying Lake Petroleum Technology Co., Ltd — Supplier in China
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International Shipping & Import Guidelines for Drilling Free Stage Cemen
When importing Drilling Free Stage Cemen from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Drilling Free Stage Cemen
How can I get the wholesale price for Drilling Free Stage Cementing Collar?
Click the "Request Quotation" button to contact Dongying Lake Petroleum Technology Co., Ltd directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Drilling Free Stage Cemen in bulk from China?
Yes, Dongying Lake Petroleum Technology Co., Ltd provides Drilling Free Stage Cemen for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Dongying Lake Petroleum Technology Co., Ltd. Contact the supplier to discuss the best logistics options for importing Drilling Free Stage Cemen to your country.
How do I request a sample of Drilling Free Stage Cementing Collar?
Send a direct message to Dongying Lake Petroleum Technology Co., Ltd through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Dongying Lake Petroleum Technology Co., Ltd is a registered supplier on EximNext. Check the company profile and documents before ordering, and use our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Drilling Free Stage Cemen?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Dongying Lake Petroleum Technology Co., Ltd.
Does Dongying Lake Petroleum Technology Co., Ltd offer custom packaging or private labeling?
Many suppliers on EximNext, including Dongying Lake Petroleum Technology Co., Ltd, offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
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Yes, EximNext hosts a wide network of Mining Machinery, Equipments & Spare Parts manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Dongying Lake Petroleum Technology Co., Ltd for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our B2B marketplace.
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