三类油层作为油田潜在储量的重要组成部分，因层间及平面非均质严重、开发难度大，此前一直缺乏成熟的三次采油技术方案。 为破解这一难题，2018年8月，大庆油田采油五厂第七作业区现场试验攻关团队正式启动上返葡I1-2层聚合物驱现场试验，旨在探索适合杏南开发区三类油 层的注入体系与开发技术，为后续规模开发积累经验。 试验过程中，技术人员针对三类油层"非均质突出"的核心难点，创新建立井组分类开发原则。根据油层发育以及连通情况，按照从好到差划分，通过聚驱过 程中个性化设计分类井注入方案，实现聚合物连续注入，形成"一类一策"的全过程精细跟踪调整。在实现不同类型井均高效开发的同时，有效提升了油层动 用效率，试验区累计动用厚度比例达94.59%，远超预期目标。 经过多年持续攻关与精细管理，试验区开发效果逐步显现。截至目前，该试验区已累计增油5.0万吨，不仅验证了三类油层三次采油技术的可行性，更为杏 南开发区乃至整个油田的储量挖潜提供了可复制、可推广的技术模式。 （受访单位供图）责任编辑：冷媚 科技日报记者 朱虹 通讯员 裴宇 11月17日，记者从大庆油田了解到，大庆油田采油五厂杏南开发区上返葡I1-2层聚合物驱现场试验，累计增 ...

新华社济南11月17日电 题：山东东营：河海交汇的湿地之城 新华社记者袁敏 九曲黄河奔涌5000余公里，在渤海之滨奔流入海。黄河携带泥沙淤积而成的黄河三角洲，是共和国 最年轻的土地，孕育出山东东营这座生机盎然的城市。 作为退海之地，黄河三角洲大部分地区土地盐碱化严重，生态环境脆弱。"1988年我刚入站，这里 还是白茫茫的盐碱地，荒草丛生、漫天黄沙。"保护区黄河口管理站高级工程师张希涛说。 近年来，保护区实施生态补水工程，近3年累计补水超5.2亿立方米，清理互花米草13.1万亩，恢复 盐 地 碱蓬、海草床等本土植物5.2万亩，新增淡水湿地7.4万亩。如今，保护区内自然植被覆盖率已达 55.1%，成为中国沿海最大的新生湿地自然植被区。 在位于东营市区的明潭公园，一只编号159的国家一级保护动物朱鹮成了市民的"鸟友"。2024年10 月，这只身体雪白、面部鲜红、嘴巴又尖又长的"鸟中大熊猫"，由保护区野化放归，不久后飞至这 里"安家落户"。 明潭公园环境安静，种植着大量水生植物，生长着樱花、玉兰、海棠等40多种乔灌木。迂回曲折的 林中小径、高低起伏的山坡绿地，适合朱鹮夜宿栖息，也能满足觅食需要。 朱鹮在城市公园安居， ...

11月14日，苏丹现场网报道，昨天下午，黑格里格油田遭到无人机袭击，造成油田分析实验室的值班主 管死亡，另有两人受伤。油田随即宣布全面关停，并疏散了所有员工。军方消息人士证实，此次袭击不 仅针对平民工人，还造成两名负责保护油田的苏丹士兵受伤。 （原标题：黑格里格油田因无人机袭击而关停） ...

Core Insights - The report reveals that in 2024, 5,091 listed companies in China contributed approximately 39,727 billion yuan in actual tax payments, remaining stable compared to 2023, accounting for about 22.7% of the national tax revenue [3][4]. Group 1: Tax Contributions and Distribution - The top 100 listed companies contributed around 73% of the total tax payments, indicating a significant concentration of tax contributions among a small number of firms [5]. - Major contributors include China National Petroleum (3,961 billion yuan) and Sinopec (3,313 billion yuan), with several banks and other companies also exceeding 1,000 billion yuan in tax payments [5]. - The average tax payment per listed company was 7.8 million yuan, with a median of 0.53 million yuan [6]. Group 2: Industry Contributions - The mining, financial, and manufacturing sectors accounted for nearly 77% of the total tax contributions from listed companies, with mining alone contributing about 1 trillion yuan [8]. - The manufacturing sector saw the highest growth in tax contributions, increasing by approximately 22.6 billion yuan, while the real estate sector experienced the largest decline at around -28% [12]. Group 3: Ownership Structure and Tax Burden - State-owned enterprises represented about 30% of listed companies but contributed nearly 80% of the total tax payments, highlighting the dominance of state-owned firms in tax contributions [12]. - The average tax burden for listed companies has decreased over the years, with the tax payment per 100 yuan of revenue dropping to approximately 5.6 yuan in 2024 [13]. - The mining and financial sectors had the highest tax payment per 100 yuan of revenue at around 12 yuan, while the manufacturing sector had a lower tax burden of about 4 yuan [14].

Core Insights - The report from Southwest University of Finance and Economics reveals the tax contributions of listed companies in China for 2024, indicating a total actual tax payment of approximately 39,727 billion yuan, which remains stable compared to 2023 [1] Group 1: Tax Contributions - A total of 5,091 listed companies contributed an actual tax amount of about 39,727 billion yuan in 2024, accounting for approximately 22.7% of the national tax revenue [1] - The top 100 listed companies contributed around 73% of the total actual tax payments made by all listed companies [1] Group 2: Industry Contributions - The industries with the highest tax contributions are concentrated in mining, finance, and manufacturing [1] - China National Petroleum Corporation and Sinopec ranked first and second in actual tax payments, contributing 3,961 billion yuan and 3,313 billion yuan, respectively [1] - Major banks such as Industrial and Commercial Bank of China, China Construction Bank, Agricultural Bank of China, and Bank of China each contributed over 1,000 billion yuan, ranking third to seventh [1] - Kweichow Moutai, China State Construction Engineering, and China Mobile each contributed over 500 billion yuan, ranking eighth to tenth [1]

Core Insights - The report reveals that in 2024, 5,091 listed companies in China contributed approximately 39,727 billion yuan in actual tax payments, remaining stable compared to 2023, accounting for about 22.7% of the national tax revenue [1][2] Group 1: Tax Contributions and Distribution - The top 100 listed companies contributed around 73% of the total tax payments, indicating a significant concentration of tax contributions among a small percentage of companies [3] - Major contributors include China National Petroleum (3,961 billion yuan) and Sinopec (3,313 billion yuan), followed by major banks and companies like Agricultural Bank of China and China Mobile, each exceeding 1,000 billion yuan in tax payments [3] - The average tax payment per listed company was 7.8 million yuan, with a median of 0.53 million yuan [4] Group 2: Industry Contributions - The mining, financial, and manufacturing sectors accounted for nearly 77% of the total tax contributions from listed companies, with the mining sector alone contributing about 1 trillion yuan [4][9] - The manufacturing sector saw the highest growth in tax contributions, increasing by approximately 226 million yuan, while the real estate sector experienced the largest decline at -28% [9] Group 3: Ownership Structure and Tax Burden - State-owned enterprises represented about 30% of listed companies but contributed nearly 80% of the total tax payments, highlighting the dominance of state-owned firms in tax contributions [9] - The average tax burden for listed companies has decreased to approximately 5.6% in 2024, down from 8.9 yuan per 100 yuan of revenue in 2015, reflecting the impact of tax reduction policies [10] - The mining and financial sectors had the highest tax burden per 100 yuan of revenue, at around 12 yuan, while the manufacturing sector had a lower burden of about 4 yuan [10] Group 4: Emerging Sectors - Companies related to digital currency and digital government concepts had relatively low tax contributions, indicating potential for growth in tax contributions from these sectors [11]

Core Insights - The first permanent fiber optic well in Iraq has been successfully completed, located in the Maysan oil field led by China National Offshore Oil Corporation (CNOOC) [1] - This technology allows real-time monitoring of temperature, pressure, and production contributions, enhancing oil field management and production optimization [1] - The implementation of this technology is part of CNOOC's broader efforts to advance digitalization and improve oil field efficiency [1] Group 1 - The fiber optic well was installed to a depth of 5,000 meters, enabling the detection of fluctuations in temperature, heat, and pressure in real-time [1] - Previously, oil wells required regular shutdowns for measurements, resulting in production losses and increased costs, with each maintenance operation costing approximately $500,000 [1] - The project signifies a new advancement in the development of the Maysan oil field and demonstrates the company's technical strength and management capabilities in line with international oil and gas industry best practices [1] Group 2 - The manager of the joint operating agency for the Maysan oil field highlighted the well's ability to provide precise information for scientific management and production optimization [1] - CNOOC Iraq has also led and promoted a series of new technologies and processes over the past year to address bottlenecks in stable production [1] - These initiatives are aimed at enhancing the quality and efficiency of oil production in the field [1]

Group 1 - The core point of the article is that Sunshine Oilsands (02012) reported a total revenue and other income of CAD 13.002 million for the first three quarters of 2025, representing a year-on-year decrease of 22.95% [1] - The net loss attributable to equity holders narrowed to CAD 10.989 million, a year-on-year improvement of 67.32% [1] - The loss per share was reported at CAD 0.03 [1]

Core Insights - Sunshine Oilsands (02012) reported a total revenue and other income of CAD 13.002 million for the first three quarters of 2025, representing a year-on-year decrease of 22.95% [1] - The net loss attributable to equity holders narrowed to CAD 10.989 million, a reduction of 67.32% compared to the previous year [1] - The loss per share was CAD 0.03 [1]

Core Viewpoint - Sunshine Oilsands (02012.HK) reported a significant decline in oil sales revenue for the nine months ending September 30, 2025, primarily due to equipment maintenance at West Ells, resulting in a drop from 26.3 million CAD to 0 CAD [1] Financial Performance Summary - For the nine months ending September 30, 2025, oil sales revenue (net of royalties) decreased to 0 CAD from 26.3 million CAD for the same period in 2024 [1] - The net operating loss for the three months ending September 30, 2025, was 7.1 million CAD, compared to a net operating loss of 0.5 million CAD in the same period of 2024 [1] - The net cash flow from operations for the three months ending September 30, 2025, showed a loss of 1.1 million CAD, slightly worse than the net loss of 1.0 million CAD in the same period of 2024 [1] - The company reported a net profit attributable to shareholders of approximately 0.7 million CAD for the third quarter of 2025, compared to a net loss of 0.5 million CAD in the third quarter of 2024 [1]