海上稠油多元热流体吞吐开采技术研究

摘要

渤海某油田地质特征及开发现状与国外类似油藏开发的比较研究表明：该稠油油田有可能通过热采改善开发效果，考虑到海上平台空间小、经济制约等因素可引进多元热流体热采吞吐技术进行开发。为此，利用数值模拟手段对该技术的开发效果进行了预测，综合分析了该技术在海上稠油油田实施的可行性及有效性。已开展的现场试验效果也证实热采井吞吐后产量有较大的提高，表明多元热流体吞吐能有效地改善海上稠油开发效果。%Research on comparison of Bohai oilfield geological characteristics and its current development situation with foreign similar reservoir development showed that it is possible to use thermal recovery to improve the development effects of the heavy oil field. Considering the small offshore platform space and restricted economic conditions, the complex thermal fluids huff and puff technology is considered to be applied to develop the heavy oil field. Thus, numeric simulation method is used to predict the devel-opment effects of this technology and comprehensively analyze the feasibility and effectiveness of the application of the technology in offshore heavy oil field. The carried out field tests proved that the production of thermal recovery wells increased considerablly after huff and puff, indicating that complex thermal fluids huff and puff could effectively improve the development effects of off-shore heavy oil field.