Sinopec Matrix Navigation Rotary Steering Drilling System achieved remarkable results.  The upgraded IB Plus high-reliability rotary steering drilling system broke through multi-sensor guided dynamic azimuth measurement technology. The system's structural strength increased by 22%, vibration resistance reached 20gRMS, key component lifespan extended to 2,000 hours, temperature resistance improved to 165°C, and localization rate reached 94.7%. It was selected for the National Energy Administration's first sets of major technological equipment.

Complex mountainous area seismic acquisition capability was enhanced.  Efforts on the 3D seismic in North Luntai area of the Tianshan Mountains in Xinjiang led to breakthroughs in "non-standard" shot-receiver point layout, "combined well-seismic" excitation, Beidou short message + MESH self-organizing network communication, LiDAR point cloud data acquisition, and helicopter-assisted operation. These innovations addressed challenges such as operation in blade-shaped cliff areas, efficient production in wide gravel riverbeds, and communication and transportation in high, steep unmanned mountainous areas, enabling us to work on all conditions for onshore seismic and exploration.

Continuous progress was made in deep well drilling technologies.  In Shunbei, technologies including long open-hole wellbore reinforcement and leak-proof cementing were upgraded, with the shortest drilling cycle for ultra-deep wells under 80 days. Zhengshen 101 well hit a record for the deepest drilling depth of 8,962.85 meters in the Junggar Basin, while Hexing 1 well achieved the deepest drilling depth of 7,452 meters and shortest drilling cycle of 241.85 days in volcanic formations in Sichuan Basin. The composite brine-based + high-temperature anti-collapse oil-based drilling fluid process in the Southwest working areas ensured safe ultra-deep volcanic well completion. A total of 271 ultra-deep wells were completed, averaging 6,781.36 meters in depth, 11.35 m/h in ROP, and 82.34 days in drilling cycle, demonstrating significant efficiency gains.

Shale oil & gas engineering techniques were steadily improved.  The slim-hole horizontal trajectory calculation model helped optimize well path design and down-hole tool combinations, increasing ROP and slim-hole extension capability. Horizontal section length grew by 25%, drilling cycle shortened by 13%, and the longest single-run footage reached 2,786 meters. We developed key technologies including rotary steering plus bit-tool integration for faster drilling, deep shale gas remote LWD plus screw drilling efficiency, "density fine-tuning plus dynamic backpressure" precise pressure control, foam cementing, high-angle fractured formation coring for shale oil, etc. We drilled 194 shale gas wells with an average depth of 5,585.93 meters, ROP of 10.99 m/h, drilling cycle of 72.86 days. 59 shale oil wells were drilled with average depth 5,423.03 meters, ROP 18.99 m/h, drilling cycle of 46.27 days, demonstrating significant quality and efficiency improvement. The Fengye 1-2-512HF well hit a record for the shortest drilling cycle of 17.71 days in China for continental-phase shale oil wells deeper than 5,500 meters.

Down-hole Operations & Reservoir Services steadily advanced.  We strived to build technology strength for down-hole operations. Fracturing efficiency increased by 10.7% in key regions including Shengli, North China, Sichuan and Chongqing. The world's first 175 MPa ultra-high-pressure fracturing equipment was deployed in 3 wells, raising pressure limits to 140 MPa. Post-fracture tests at Ziyang 2# and Jinye 3HF wells yielded 3.06 million cubic meters and 1.62 million cubic meters daily free flows respectively, marking breakthroughs in Qiongzhusi shale gas exploration. The Haixie 3 well achieved 1,010 cubic meters of daily production in testing, supporting a major discovery in the Beibu Gulf Basin. Eight demonstration zones for challenging reserves yielded 700 thousand tonnes of crude and 370 million cubic meters of gas annually, totaling a million tonnes of oil and gas equivalent.

Drilling fluid witnessed breakthroughs.  We made research on near oil-based base fluid with low water activity, super strong inhibition and high lubricity, and developed a near oil-based drilling fluid system with independent intellectual property rights. It effectively solved the problem of borehole wall instability in the fractured Longmaxi Formation of Well Jiaoye 66-Jian 5, and helped obtain cores from the formation after the fracturing of the first horizontal well. The in-house biomass synthetic-based drilling fluid technology had a maximum density of 2.20 g/cm³ and a maximum temperature of 156°C. The drilling fluid enjoyed stable performance, met the requirements of carrying cuttings and sand, and were successfully applied in the Fuxing Block in Southwest China, achieving remarkable results in friction reduction.

The logging and testing technology continuously optimized. In terms of logging while drilling,  the MSAMR-175 azimuthal resistivity boundary detection instrument for logging while drilling was included in the fourth batch of the list of the first set major technical equipment in the energy field. The ultra-deep forward detection while drilling achieved a deep detection of 30 meters and a forward detection of 15 meters. Five sets of high-speed pulsers were developed, with a transmission rate of more than 8 bits per second (at a well depth of 3,683 meters). It was equipped with azimuthal gamma and resistivity instruments and applied in 14 wells. The ultra-high temperature and high pressure measurement system while drilling had passed the long-term high-temperature test of 200°C for 500 hours as a whole, and the sensor could withstand 225°C for 80 hours. It was applied in 3 wells such as Well Gaoxie 861 (with a maximum circulating temperature of 160°C). In terms of open hole logging, the conventional logging instrument series for ultra-high temperature and high pressure at 260°C/206 MPa were applied in 10 wells, achieving a 100% one-time success rate. The high-temperature direct push/wireline remote detection instruments at 200°C/172 MPa were applied on site in 17 wells, with radial detection depth for geological anomalies reaching 65 meters. In terms of technology, to adapt to the complex down-hole environments of high-angled and horizontal wells, a lantern-shaped structure pusher was developed, and a wireline/ direct push dual-mode electrical imaging logging technology at 200°C/172 MPa was formed accordingly, successfully applied in more than 10 wells. The sampling resolution of the distributed optical fiber logging system reached 0.1 meters, and the spatial resolution was 1 meter, helping Well Jiaoye 18-S12 to complete the whole-process dynamic fracturing monitoring of 44 sections in the 4,286-meter horizontal section in one trip into the well. In terms of interpretation and evaluation, the interpretation accuracy rate of various reservoirs was 94.6%. The geological steering and drilling optimization technologies were promoted in the continental tight sandstone of the Xujiahe Formation in Well Ma 306-1H in the northeastern Sichuan Basin, and the reservoir encounter rate reached 100%. A total of 1,772 old wells were rechecked, supporting the profitable development and mineral rights expansion and protection of multiple oilfields. In terms of mud logging, an automatic water-based cuttings sampling and washing system was developed, and experimental applications were carried out in 32 wells in work areas such as Shengli and Northwest. More than 20 thousand bags of cuttings were fished, meeting the standards of on-site cutting logging. The dual-mode imaging cutting element online detection technology had completed the dual-mode imaging detection experiments of 10 standard samples, achieving the differentiation of five lithologies including shale, basalt, andesite, granite, and quartz sandstone.

Surface engineering technology and innovation achieved fruitful results in efficiency improvement, and standardization, modularization, prefabrication, mechanization, and digitization.  The natural gas liquefaction process and skid-mounted technology for remote wells with a capacity of 100 thousand cubic meters per day were applied in the construction project of the skid-mounted recovery test station for the natural gas produced by Well Dongfeng 103 during its trial production. It shortened the construction period by more than 50 days, and the skid-mounted rate was as high as 92.1%. The automatic external root welding technology with tungsten inert gas (TIG) welding was applied to national key pipeline projects such as the Third West-East Gas Pipeline and the Second Sichuan-East Gas Transmission Pipeline. The welding efficiency was increased by 100%, and the welding cost was reduced by 15%. The key "Five Modernizations" technologies for inspection, maintenance, and repair of the ground system in high-sulfur gas fields were applied in the maintenance project of the joint devices in the Puguang Gas Field Group. This reduced the maintenance time by 3 days, and the rates of standardized and mechanized operation were significantly improved. We promoted and improved the strengthening and supplementing of the CCUS industrial chain, and achieved the completion and operation of the first domestic supercritical carbon dioxide transportation pipeline with a capacity of one million tonnes and a length of one hundred kilometers. The "Technology and Application of Smart Oil Depot Construction Based on Carbon Neutrality" was rated as the first prize of the Scientific and Technological Progress Award by the Petroleum Engineering Construction Association, reaching the international advanced level. An integrated management system for the integration of informatization and industrialization was established, and a Class AAA evaluation certificate of the national integration management system for informatization and industrialization was obtained. We participated in the "Protection, Inheritance and Revitalization Project of the Garden Residences on Dongguan Street in Yangzhou" and won the Outstanding Award for the Protection of Cultural Heritage by the United Nations. We ensured the construction of the national natural gas pipeline network, and multiple national key projects such as the West-East Pipeline Phase Four met criteria for commissioning as scheduled.

Digital intelligence in oilfield services empowered transition.  The "Digital Drill Bit Parameter Sensing and Optimization Control Technology" was selected as an outstanding case in China's oil and gas artificial intelligence technology. The "Well-site Data Transmission Based on Beidou-3 Short Message" won the Significant Achievement Award under the Central Enterprises Beidou Development Three-Year Action Plan. We accelerated the construction of the Petroleum Engineering Digital Intelligence Resource Center, with integration between the SICP System and BPEP System achieved. The Intelligent Collection and Data Box for Well sites (ICDB) enabled the collection and aggregation of 212 IPPE data points across 8 categories, including drilling, cementing, and fracturing. The widespread adoption of the Geology-Engineering Integration System increased the average rate of penetration by 26.5% and reduced average drilling cycles by 11.6%. The Fracturing Intelligent Early Warning and Analysis System leveraged big data models for anomaly recognition and risk prediction, achieving over 80% accuracy in risk forecasting. For deep-well drilling, the comprehensive early warning system for complex failures had improved stuck pipe prediction accuracy by over 40%, providing robust support for the "Four Improvements and One Reduction" initiative (efficiency, quality, safety, sustainability improvements, and cost reduction).

Iteration of core petroleum engineering equipment was accelerated.  Throughout the year, 19 drilling rigs underwent electrification and automation upgrades, with the electrified rig deployment rate rising to 67%, the adoption rate of grid-powered drive systems reaching 56%, and electric fracturing skids' share of hydraulic horsepower increasing to 29%. A total of 268 rigs were equipped with automated tubular handling systems. The equipment portfolio was further optimized through the procurement of 75 thousand-channel seismic acquisition systems, the renewal of a 16-level borehole seismic acquisition system, 32 fully automatic TIG welding machines, and 28 fully automatic single-torch external welding machines, significantly enhancing equipment efficiency and operational support capabilities.

Breakthroughs were made in core technologies for oil & gas and new energy equipments.  The world's highest single-unit-power 8.97 MW electric fracturing equipment completed industrial trials, while marine fracturing and cementing systems supported China's first large-scale fracturing ship and first ocean drilling vessel. New energy automated drilling and workover equipment reduced manpower and enhanced sustainability, with 10 thousand-meter workover rigs significantly improving ultra-deep well efficiency. Drill bits and tools for 10 thousand-meter wells enabled the "daily drilling progress of 2 thousand meters" milestone in deep-earth engineering. A 1.5 million cubic meters/day (standard) high-sulfur-resistant compressor filled a domestic technological gap, and Sinopec secured its first China Excellent Patent Award. Digital-intelligent production lines for cementing fracturing pumps and natural gas compressors were established, with applications including fully automated fracturing digital-intelligent command systems, compressor smart diagnostics, and drill bit/tool R&D platforms. We sped up development of hydrogen equipment manufacturing base, and a 50 thousand cubic meters (standard) salt-cavern hydrogen storage system was listed as a national first-of-its-kind technological achievement, and China's largest dual-pressure liquid-driven hydrogen compressor debuted at the Supply Chain Expo. These innovations powered Sinopec's first alkaline water electrolysis hydrogen production-refueling integrated station, first 10 thousand-cubic-meter hydrogen supply center, and Hubei's inaugural hydrogen demonstration line.