国家知识产权局信息显示，中国石油天然气股份有限公司申请一项名为"一种碳酸盐岩潜山油气藏储层 物性分布模型的建立方法"的专利，公开号CN121351325A，申请日期为2024年7月。 专利摘要显示，本发明属于油气开采技术领域，具体涉及一种碳酸盐岩潜山油气藏储层物性分布模型的 建立方法、系统，旨在解决现有技术构建的碳酸盐岩潜山油气藏储层物性分布模型精度较低的问题。本 方法包括：建立碳酸盐岩潜山的顶面构造、内幕地层构造的三维网格体，作为第一、第二网格体；构建 第一网格体的裂缝分布模型；构建第二网格体的沉积层段索引参数模型及各沉积层段岩石成分分布模 型，并赋值到第一网格体；得到主要影响因素；对第一网格体的非过井网格进行条件模拟，生成非过井 网格的物性参数；非过井网格的物性参数赋值至对应的第二网格体的网格，得到碳酸盐岩潜山油气藏储 层物性分布模型。本发明提升了碳酸盐岩潜山油气藏储层物性分布模型的构建精度。 天眼查资料显示，中国石油天然气股份有限公司，成立于1999年，位于北京市，是一家以从事石油和天 然气开采业为主的企业。企业注册资本18302097万人民币。通过天眼查大数据分析，中国石油天然气股 份有限公司共对外投 ...

Group 1 - The State Intellectual Property Office of China has published a patent application by China National Petroleum Corporation (CNPC) for a high-frequency resistance welding high-strength large-strain oil casing and its preparation method and application, published under CN120193215A, with an application date of December 2023 [1] - The patent details a composition for the oil casing, including specific percentages of various elements such as C: 0.17% to 0.27%, Si: 0.15% to 0.33%, Mn: 1.35% to 1.65%, and others, designed to meet the demands of complex working conditions in oil and gas wells [1] Group 2 - China National Petroleum Corporation was established in 1990, located in Beijing, primarily engaged in oil and gas extraction, with a registered capital of 48.69 billion RMB [2] - CNPC has invested in 112 companies, participated in 5,000 bidding projects, and holds 1,446 trademark records and 5,000 patent records [2] - China National Petroleum Group Engineering Materials Research Institute, founded in 2021 and located in Xi'an, focuses on specialized equipment manufacturing with a registered capital of 679.11 million RMB [2] - The Research Institute has invested in 4 companies, participated in 1,253 bidding projects, and holds 15 trademark records and 647 patent records [2]