金融界2025年5月3日消息,国家知识产权局信息显示,中国石油集团渤海钻探工程有限公司、中国石油天然气集团有限公司申请一项名为“油管开孔工具”的专利,公开号CN119900487A,申请日期为2023年10月。专利摘要显示,本发明提供了一种油管开孔工具,涉及石油、天然气等非常规油气藏开采技术领域,本发明提供的油管开孔工具通过将压杆插装于外套,传动盘上连接有传动销和从动销,压杆通过第一通孔与传动销...
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