Premium API 5CT Casing & Tubing Pipes
High-performance OCTG solutions for oil, gas, and water well completion. Seamless and ERW casing pipes, slotted liners, wire-wrapped screens, and pup joints engineered for durability and precision.
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High-performance OCTG solutions for oil, gas, and water well completion. Seamless and ERW casing pipes, slotted liners, wire-wrapped screens, and pup joints engineered for durability and precision.
A trusted leader in oilfield tubular goods and sand control solutions since 1992.
Established in 1992, Dongying Mingde Petroleum Technology Co., Ltd (formerly Drilling Mud Additives Factory of Petroleum University) is a professional oilfield service company focusing on drilling, well completion, and production enhancement.
As a certified manufacturer of API 5CT OCTG tubing and casing pipes, we deliver high-quality, reliable products used in oil, gas, and water well applications worldwide. Our expertise extends to downhole sand control screens, slotted liners, and pup joints designed for extreme downhole conditions.
Precision-engineered oilfield tubular goods and completion tools built to API standards.
Seamless and ERW steel casing pipes for oil, gas, and water well completion and cementing operations.
Short-length connectors for precise alignment and connection in oil, water, and gas wells.
High-precision laser or plasma-cut slotted liners for gravel packing and well completion.
Keystone slot design for effective sand control in oil, water, and gas wells.
Optimize well productivity with precision screens for sand control and gravel packing.
Industry-grade tubular goods for drilling, exploration, and well completion.
Corrosion-resistant hot-rolled galvanized tubing for extended well life.
Laser-cut precision tubes for maximum drilling potential in challenging formations.
Decades of expertise, rigorous quality control, and global reliability.
All products are manufactured to API 5CT, API 5B, and other international standards ensuring compatibility and safety in critical oilfield operations.
Every batch undergoes comprehensive testing for dimensional accuracy, pressure resistance, material composition, and weld integrity.
Trusted by operators in over 30 countries, with efficient logistics and full traceability from factory to field.
API 5CT is the American Petroleum Institute specification for casing and tubing pipes used in oil and gas wells. It defines requirements for dimensions, mechanical properties, testing, and marking.
Casing is used to line the wellbore during drilling to prevent collapse and control pressure. Tubing is installed inside the casing to carry oil or gas to the surface during production.
Yes, we manufacture pup joints in various lengths, diameters, and connection types (EUE, Buttress) based on API 5CT and API 5B standards with full traceability.
We offer slotted liners in carbon steel, stainless steel, and corrosion-resistant alloys, depending on the downhole environment and customer specifications.
Absolutely. We provide Mill Test Certificates (MTC), Material Traceability Reports, and API compliance documentation with every shipment.
For quotes, technical support, or product inquiries, visit our official website.
Phone (24/7): +86 135 8995 3895
Fax: +86 546 8221951
Address: No. 739, Beiyi Road, Dongying District, Dongying, Shandong, China
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