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热力采油是稠油开发中最主要的开采方式,中国海上稠油储量大,稠油油田的合理高效开发,对海上油田的增产稳产具有重要意义。受海上特殊的自然环境、空间等条件限制,直到2008年,我国才在渤海湾南堡油区完成了海上第一口热采井的先导性试验项目,填补了国内海上稠油热采领域的空白,为多元热流体热采技术的发展和现场应用积累了经验。从多元热流体吞吐热采机理、多元热流体设备改造及作业流程设计、制氮设备在多元热流体吞吐热采中的应用、注入热流体管线的设计和预制、热采井口及井筒结构设计、多元热流体吞吐注采方案、多元热流体吞吐热采施工程序、多元热流体吞吐热采经济评价等方面,介绍了我国第一口海上多元热流体吞吐作业的工艺设计方法和实施方案。实施海上多元热流体吞吐热采工艺,对改善海上稠油开发效果、促进海上稠油高效开发具有指导作用。
Thermal oil recovery is the most important method for exploitation of heavy oil. The large offshore heavy oil reserves in China and the rational and efficient development of heavy oil fields are of great significance to the increase of oil production and stable production of offshore oil fields. Due to the special natural environment and space constraints at sea, it was not until 2008 that our country completed the pilot pilot project of the first offshore thermal recovery well in Nanpu Oilfield, Bohai Bay, filling the domestic field of heavy oil thermal recovery Blank, for the multi-thermal fluid thermal recovery technology and field applications accumulated experience. From the perspectives of multivariate thermal fluid throughput thermal recovery mechanism, multivariate thermal fluid equipment modification and operation process design, application of nitrogen equipment in multivariate thermal fluid throughput thermal recovery, design and prefabrication of thermal fluid injection lines, thermal wellhead and wellbore structure design, Multivariate heat fluid throughput injection and recovery program, multivariate thermal fluid throughput and thermal recovery construction sequence, multivariate thermal fluid throughput thermal recovery economic evaluation and so on, introduced China’s first sea multivariate thermal fluid throughput operation process design method and implementation plan. The implementation of multi-heat hydrothermal huff and puff at sea has a guiding role in improving the development effect of heavy oil at sea and promoting the efficient development of heavy oil at sea.