Here is a detailed introduction to four important standards recently issued or initiated by China National Petroleum Corporation (CNPC):  1. **"Nepheline-Dibutadiene Rubber" (GB/T 46327-2025)**     - **Issuing Authority**: Led by Dushanzi Petrochemical, released by the National Standardization Administration of China on October 5, 2025, with implementation effective from May 1, 2026.     - **Technical Content**: Specifies the technical requirements, testing methods, inspection rules, as well as markings, packaging, transportation, and storage of nepheline-dibutadiene rubber. The product is divided into two grades based on Mooney viscosity (45-55 and 60-70), with premium-grade indicators including volatile matter ≤0.50%, ash content ≤0.50%, and a light-colored, translucent block appearance.     - **Industry Impact**: Fills the gap in domestic high-end synthetic rubber standards, breaking international monopolies. Currently, China's domestic nepheline-dibutadiene rubber production capacity is approximately 265,000 tons, accounting for 38% of global output, but high-end products still rely on imports. This advancement promotes the upgrading of the tire industry. The material reduces rolling resistance by 10%-15% and enhances wear resistance by 20%, already applied in high-performance radial tires from brands such as Michelin and Dunlop.     - **Dushanzi Petrochemical**, as the largest domestic producer (with an annual capacity of 280,000 tons, representing 27% of the national total), plans to add 100,000 tons of rare-earth butadiene rubber capacity through the Tarim Phase II ethylene project. Upon completion in 2026, this will further solidify its market position.  ---  2. **"Bisphenol A" (GB/T 46328-2025)**     - **Issuing Authority**: National Standardization Administration of China, effective from December 1, 2025.     - **Technical Content**: Defines the technical requirements, testing methods, inspection rules, and markings, packaging, transportation, and storage of bisphenol A. The product is categorized into two grades: food-grade and industrial-grade, with food-grade indicators including free phenol ≤0.001%, free formaldehyde ≤0.001%, and a colorless or light-colored appearance.     - **Industry Impact**: Addresses the lack of domestic bisphenol A standards, ensuring safety for food applications. China's domestic bisphenol A production capacity is around 300,000 tons, with imports primarily from the U.S. and South Korea. This standard enhances domestic supply security and supports industries such as plastics and electronics.  3. **"Ethylene Propylene Diene Monomer (EPDM) Rubber" (GB/T 46329-2025)**     - **Issuing Authority**: National Standardization Administration of China, effective from January 1, 2026.     - **Technical Content**: Outlines the technical requirements, testing methods, inspection rules, and markings, packaging, transportation, and storage of EPDM rubber. The product is classified into three grades: general-purpose, automotive-grade, and high-performance, with high-performance indicators including tensile strength ≥15 MPa, elongation at break ≥400%, and a light-colored, semi-transparent appearance.     - **Industry Impact**: Supports the automotive and construction industries by improving EPDM quality standards. China's domestic EPDM production capacity is approximately 150,000 tons, with imports from the U.S. and South Korea. This standard enhances domestic supply stability and reduces reliance on foreign imports.  4. **"Polypropylene" (GB/T 46330-2025)**     - **Issuing Authority**: National Standardization Administration of China, effective from March 1, 2026.     - **Technical Content**: Defines the technical requirements, testing methods, inspection rules, and markings, packaging, transportation, and storage of polypropylene. The product is divided into five grades: general-purpose, food-grade, medical-grade, automotive-grade, and high-performance, with high-performance indicators including melt flow index (MFI) ≤1.0 g/10 min and tensile strength ≥40 MPa.     - **Industry Impact**: Strengthens domestic polypropylene standards, supporting industries such as packaging, automotive, and medical. China's domestic polypropylene production capacity is around 500,000 tons, with imports primarily from the U.S. and South Korea. This standard enhances domestic supply security and promotes the development of high-performance applications.

2、 Electromagnetic Wave Transmission Measurement System for Oil and Gas Drilling and Production Equipment (GB/T 46212-2025)
Published by: Led by the Engineering Technology Research Institute, in collaboration with Beijing Petroleum Machinery Factory, Great Wall Drilling and other units, this plan will be released in 2025 and implemented on March 1, 2026.
Technical content: It specifies the technical requirements, testing methods, and inspection rules for electromagnetic wave while drilling measurement systems, including key indicators such as transmission rate, detection depth, and anti-interference ability. Core technical parameters: transmission rate of 10-20bps (10 times that of conventional MWD), resistivity detection depth of 1500mm, natural gamma measurement accuracy of ± 5%, working temperature of -20 ℃ to 150 ℃.
Application case: A total of 662 well operations have been completed in the main block of LaSaXing in Daqing Oilfield and Qian'an block in Jilin Oilfield, with a single well failure rate of 0.32%, saving 2997 drilling hours and a direct economic benefit of 5.64 million yuan. In 2024, a record of 1789 meters of daily footage was set in the Gulong shale oil block, solving the problem of signal transmission in high sand and high displacement drilling fluid environments.
Industry significance: Eliminating the pain point of long-term lack of unified standards in the industry and promoting the substitution of imported domestic equipment (currently 70% of the domestic market relies on products from Schlumberger and Halliburton). Improve the efficiency of deep/ultra deep oil and gas development, such as achieving the first oil and gas breakthrough in the 4538 meter deep Cretaceous reservoir, with a daily production of 13.5 tons of oil and 42000 cubic meters of natural gas.
l Requirements for Design of Geothermal Scale Development Plan in Oil Regions (Industry Standard Approval)
Lead unit: North China Oilfield Exploration and Development Research Institute, approved on October 9, 2025, expected to be implemented in 2027.
Technical content: The first industry standard for geothermal development in oil regions in China, covering the entire process of resource evaluation, well network deployment, reinjection design, environmental monitoring, and other technical specifications. Core innovation points: 1 Integrate reservoir numerical simulation and geothermal flow field analysis to optimize the collaborative development mode between geothermal wells and oil wells. 2. Propose the principle of "irrigation determines extraction", requiring a reinjection rate of ≥ 90%, and establish technical indicators for geothermal tailwater treatment. 3. Standardize the completion process of geothermal wells, adopt corrosion-resistant pipes and efficient insulation technology, and reduce energy consumption by 15% -20%.
Implementation results: Huabei Oilfield has built a heating capacity of 26.21 million square meters and reduced carbon dioxide emissions by 1.57 million tons annually, accounting for 88% of its total new energy production capacity. For example, the geothermal project in the northern urban area of Hejian City has an annual heating capacity of 560000 GJ, covering 1.86 million square meters and reducing carbon dioxide emissions by 45500 tons.
After the implementation of the standard, it is expected to reduce the cost of geothermal development in oil fields by 20% -30%, promoting the large-scale utilization of geothermal resources in oil fields such as North China and Shengli.
4、 National standards for insulation of marine pipelines (two projects approved)
Lead unit: Pipeline Design Institute, approved for project approval in 2025, expected to be implemented in 2027-2028.
Technical content: The first national standard for wet insulation engineering of marine pipelines and facilities in China, referring to ISO 12736-1:2023 "Wet Insulation System for Petroleum and Natural Gas Industry", and developed in combination with high-pressure, low-temperature, and highly corrosive environments in the South China Sea, East China Sea, and other sea areas.
Core technical indicators: 1 The thermal conductivity of the insulation material is ≤ 0.025W/(m · K), and the compressive strength is ≥ 1.5MPa. 2. The system has a water pressure resistance of ≥ 30MPa, an impact load resistance of ≥ 500J, and a service life of ≥ 30 years. 3. Introduce 3D printing prefabricated insulation layer technology to improve installation accuracy to ± 2mm.
Application Scenario:
Suitable for subsea oil and gas pipelines, LNG transport ship connection facilities, offshore wind power foundations, etc. with a water depth of less than 1500 meters. For example, the 23 underwater gas wells of the "Deep Sea One" Phase II project adopt a wet insulation system, with a maximum daily production capacity of 15 million cubic meters.
Industry value: fill the gap in China and promote the localization of key materials such as polyurethane elastomer and nano aerogel (90% of them are imported at present).
Reducing the cost of deep-sea energy development is expected to reduce the cost of underwater pipeline insulation engineering by 15% -20%, while supporting the "dual carbon" goal and reducing energy transmission heat loss by more than 30%.           
The release and establishment of the above standards marks a significant breakthrough in the standardization construction of China Petroleum in the fields of high-end chemical materials, oil and gas drilling and production technology, geothermal development, and marine engineering. These standards not only enhance the uniformity of industry technical specifications and international competitiveness, but also provide strong support for safeguarding national energy security and promoting green and low-carbon transformation through the transformation of technology into actual productivity.

Author of this news: Ding Shuhan

Date: October 17, 2025