科学技术是第一生产力，在国民经济支柱行业之一的石油行业里更是如此。在炼化之前的石油上游环节中，钻井成本占到了总成本的60～70%，具有显著的资金密集型、知识密集型、技术密集型特征。近年来全球油气资源形势日趋紧张，国家能源安全的战略地位不断提升，利用科技手段打造钻井利器成为石油公司的重要使命之一。

本期以“科技引领发展”为主题重拳推出的系列报道，集中介绍了中石油长城钻探工程有限公司工程技术研究院紧紧围绕“建设成国际化石油工程技术总承包商”的发展目标，立足国内外目标市场，历经十余年不懈努力，形成了一批以分支井、稠油热采钻完井技术为代表的，达到国内领先、国际先进水平的优势特色技术，为辽河等国内稠油油藏、后期开发油田的稳产、增产以及国外市场的开拓提供了坚实的技术保障，使得长城公司连续多年来收入始终保持十位数以上的增长速度，国际市场收入已经占到了总收入的一半，在激烈的国际竞争中占有了一席之地，用实际行动印证了“科学技术是第一生产力”这一伟大论断。

Science and technology are the primary productive forces, especially for the petroleum industry which is one of the pillars of the national economy. In the upstream link before refining, drilling cost accounts for 60~70% of overall costs, and has remarkably capital-intensive, knowledge-intensive and technology-intensive characteristics. In recent years, due to the growing shortage of global hydrocarbon resources, strategic power of national energy security is emerging, and use of technological means to obtain drilling weapons has become one of the important missions of petroleum companies.

This series of launched reports focusing on “Tech-led development” present that Engineering Research Institute of CNPC Greatwall Drilling Engineering Company Limited, centering on the development goal of “being built into an international petroleum engineering technology contractor”, deeply rooted in domestic and foreign target markets and through 10 years of unremitting efforts, has developed several dominant and featured technologies, which are represented by drilling and completion technology for multilateral well and heavy oil thermal production and have reached leading domestic level and advanced international level, so as to provide solid technical support for domestic heavy oil reservoirs such as Liaohe Oilfield, stable production/stimulation of later-developed oilfields, and development of foreign markets, thus realizing that the revenues from international markets of Greatwall Drilling Engineering Company Limited have accounted for half of total revenues, making it part of vigorous international competition, and practically demonstrating the great judgment “Science and technology are the primary productive forces”.