据全球能源新闻网2月26日报道，俄罗斯天然气工业石油公司(Gazprom Neft)在2020年削减了非传统石油生产成本，将其降至每吨1.3万卢布，并在2019年的基础上削减了20%的成本。预计到2021年底，生产成本将达到每吨8500卢布，这使得该公司可以在基础设施已经成熟的油田开始Bazhenov地层的商业化生产。
俄气石油技术伙伴关系(该公司的工业集成中心,以前称为Bazhen技术中心)实现了2020年在Bazhenov地层产量同比增长78%,达到10万吨,这是开发非传统碳氢化合物的新技术解决方案，使该企业能够将生产Bazhenov石油的成本减少一半以上，从项目启动时的3万卢布减少到2021年的1.3万卢布。
2020年，还在坎蒂-曼西自治州奥克鲁格-尤格拉（Khanty-Mansi Autonomic Okrug-Yugra）的Palyanovskoye油田建造了一口高技术井，涉及两公里横轴、30级水力压裂和高速注液（每分钟16立方米），这是第一次完全由俄罗斯生产的设备进行这类复杂的所有作业。
俄气石油预计将在2021年完成一系列解决方案的测试，以实现Bazhenov石油的可行性生产。Palyanovskoye油田将钻探8口井，以最终确认开发非传统储量的商业技术的有效性。完成这项试验，并将非传统石油生产成本降低到每吨8500卢布，将使Bazhenov油气在西伯利亚西部油田的基础设施已经就位的情况下开始可行性的生产。
俄气石油技术开发总监阿列克谢·瓦什凯维奇（Alexey Vashkevich）表示，我们在为开发“难以开采”的石油创造动力以及将生产成本减半方面取得了长足的进步——而且，在这个时候，开发非传统储量所需的高技术油井的进口替代水平达到95%以上。
我们参与开发的许多解决方案在整个行业是无与伦比的。部署开发Bazhenov地层的商业技术，到2025年，不仅可以从这些储量中每年获得100万吨的额外产量，而且还可以打开西伯利亚西部其他致密储量的通道。
Bazhenov地层或 Bazhenov页岩是西伯利亚盆地的一个地质层。它是由蒂托尼亚-早贝里亚斯时期沉积在深海中的沉积物形成的。根据美国能源信息署(U.S. Energy Information Administration) 2013年6月公布的数据显示，Bazhenov页岩勘探区致密油储量约为1.243万亿桶。
郝芬 译自 全球能源新闻网
原文如下：
GAZPROM NEFT DOUBLES PRODUCTION OF BAZHENOV TIGHT OIL IN WESTERN SIBERIA
Gazprom Neft cut its non-traditional oil production costs in 2020, taking this down to RUB13,000 per tonne and delivering a 20% reduction on 2019 costs. Production costs are expected to reach RUB8,500 per tonne by the end of 2021, allowing the company to start commercial production of Bazhenov strata at fields with developed infrastructure already in place.
Gazpromneft-Technology Partnerships (the company’s industrial integration hub, previously known as the Bazhen Technology Centre) delivered a 78% year-on-year increase in production at Bazhenov strata in 2020, reaching 100,000 tonnes — new technological solutions for developing non-traditional hydrocarbons having allowed the business to more than halve the costs of producing Bazhenov oil, from RUB30,000 at the start of the project in 2017 to RUB13,000 by 2021.
2020 also saw the construction of a high-tech well involving a two-kilometre horizontal shaft, 30-stage hydraulic fracking, and high-speed fluid injection (of up to 16 cubic metres per minute) at the Palyanovskoye field in the Khanty-Mansi Autonomous Okrug—Yugra — this first time all operations on such complex construction have been undertaken using exclusively Russian-produced equipment.
Gazprom Neft is expecting to complete its testing of a range of solutions for the viable production of Bazhenov oil in 2021. Eight wells are to be drilled at the Palyanovskoye field for final confirmation of the effectiveness of commercial technology for developing non-traditional reserves. Completing this experiment, and reducing non-traditional oil production costs to RUB8,500 per tonne, will make it possible for viable production of Bazhenov hydrocarbons to commence at West Siberian fields with infrastructure already in place.
Alexey Vashkevich Director for Technological Development, Gazprom Neft said: “We have come a long way in being able to create the impetus for developing “hard-to-recover“’ oil, as well as halving production costs — at a time, moreover, when import-substitution levels in building the high-tech wells necessary for developing non-traditional reserves reached more than 95%.
Many of the solutions developed with our involvement are unparalleled throughout the industry. Deploying a commercial technology for developing the Bazhenov Formation will not only make it possible to produce an extra one million tonnes per year from these reserves by 2025, but will also open up access to other tight reserves in Western Siberia.“
The Bazhenov Formation or Bazhenov Shale is a geological stratum in the West Siberian basin. It was formed from sediment deposited in a deep-water sea in Tithonian–early Berriasian time. According to U.S. Energy Information Administration estimates published in June 2013, the total Bazhenov shale prospective area has a resource of a risked tight oil in-place of 1,243 billion barrels.
