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中国石化在四川发现储量3878亿立方米页岩气田_我的网站

一 |     PORTLAND, Ore. -- Teachers in Portland, Oregon, have voted to go on strike, their union announced Friday, in another sign of a growing national organized labor movement that's seen thousands of workers in various sectors walk off the job this year. The Portland Association of Teachers' strike would start Nov. 1 unless an agreement with the school district is reached before then. The union said nearly 99% of teachers voted in favor of the strike, with 93% of its members participating in the ballot. Teachers have cited large class sizes, salaries that have not kept up with inflation and a lack of resources as key concerns. The union has been bargaining for months with the district for a new contract, which expired in June.“Students need stability and experienced educators in our schools, but the high cost of living is pushing teachers to leave the district. I don’t know how I’m going to survive on a teacher salary in Portland and I’m at the top of the pay scale," said Shannon Kittrick, a high school educator, in an emailed statement from the union.Schools will close and there will be no classroom or online instruction if the strike takes place, according to the district, which said it wants to avoid such a scenario.“We want to reach a fair, sustainable settlement, and we will stay at the bargaining table as long as it takes to get there. We ask our educators to stay at the table with us, not close schools," Portland Public Schools said in an emailed statement.The district is the largest in Oregon with roughly 45,000 students.Public education has been gripped by a series of high-profile strikes this year. In the Los Angeles Unified School District, the nation's second-largest, workers including teachers' aides, cafeteria workers and custodians walked out for three days in March to demand better wages and increased staffing, shutting down education for half a million students.In Oakland, California, the union representing teachers, counselors, librarians and other workers went on strike for more than a week in May. In addition to typical demands such as higher salaries, it also pushed for “common good” changes, such as reparations for Black students and resources for students who are homeless.。    10月18日，中国石化西南石油局在四川盆地部署的金石103HF探井获得高产稳产工业气流，日产天然气25.86万立方米，评价落实地质资源量3878亿立方米。这是我国首次在寒武系筇竹寺组地层取得页岩气勘探的重大突破，开辟了页岩气规模增储新阵地，将为页岩气勘探开发向新区、新层系、新类型领域纵深推进提供有力支撑，助力川渝地区国家天然气（页岩气）千亿立方米级产能基地建设。

二 | 页岩气是指赋存于富有机质泥页岩及其夹层中，以吸附或游离状态存在的非常规天然气，成分以甲烷为主，主要用于居民燃气、城市供热和发电等。据介绍，四川盆地主要有龙马溪组、寒武系筇竹寺组两套主力海相页岩层系，其中龙马溪组已实现规模开发，包括我国首个深层页岩气田——威荣页岩气田。寒武系筇竹寺组则是未来最具潜力的海相页岩气勘探目标。图自中国石化，下同中国石化西南石油局加强研究，建立了针对寒武系页岩层系新的评价标准，发现了粉砂质新类型页岩气勘探目的层。同时，面对该层系优质页岩厚度薄、纵向应力差异大、规模改造难度大等问题，攻关粉砂质页岩改造技术，创新采用新的压裂工艺和压裂液体系，多段压裂改造。十年来，中国石化西南石油局大力提升油气勘探开发力度，建成世界首个7000余米超深高含硫生物礁大气田——元坝气田，探明我国首个深层页岩气田——威荣页岩气田等，落实了合兴场须家河、永川龙马溪组、井研筇竹寺组等千亿立方米以上规模增储新阵地。天然气年产量由2012年的28.2亿立方米上升至2021年的80.01亿立方米，累计生产天然气529.5亿立方米，成为中国石化最大的天然气生产企业。

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Published on:07:32:31