摘要
针对中国油砂矿藏分布特点和油砂矿开采技术要求,通过对油砂蒸汽辅助重力泄油法(SAGD)开采技术机理及工艺过程的研究,对油砂蒸汽辅助重力泄油技术优点和产能影响因素进行了分析,其中产能影响因素主要包括油砂矿藏自身特点和工艺技术因素。通过理论分析研究,并结合国外工程实践,对影响油砂蒸汽辅助重力泄油开采产能的技术影响因素,主要包括热能利用、井对间距离和布井方式进行了研究,并建立了井对间距离及布井方式的合理模型。通过对中国油砂资源的分布范围和矿藏特点进行调研,对中国油砂的分布及开采利用现状、存在的问题、开采方式方法及前景进行了分析。研究结果表明,油砂蒸汽辅助重力泄油开采技术采收率高,能有效提高油砂产能,对中国深部地层(大于100 m)储量丰富的油砂矿开发具有较强的适应性。
The paper studies production mechanism and technologies for producing oil sand by means of SAGD and analyzes the advantages and the factors affecting productivity of SAGD for producing oil sand in view of the oil sand distribution features and production technologies in China,in which the factors affecting productivity includes oil sand reservoirs and production technologies.The factors affecting productivity of oil sand by SAGD,such as thermal energy utilization,pair well space and well pattern,are studied and the reasonable models of pair well space and well pattern are established based on the theoretical study and the combination of engineering practice abroad.The distribution,current status of development,existing problems,production methods and prospect in China are analyzed through the investigation of the distribution scope and reservoir features of oil sand resources in China.The study shows that SAGD for producing oil sand can get a high recovery factor,high productivity and strong adaptability to the oil sand reserves of deep formation greater than 100 m in China.
出处
《特种油气藏》
CAS
CSCD
北大核心
2012年第6期8-12,141,共5页
Special Oil & Gas Reservoirs
基金
国家科技重大专项"大型油气田及煤层气开发"(2011ZX05024-005-007)
关键词
油砂
蒸汽辅助重力泄油
开采技术
产能影响因素
采收率
分布特点
开发前景
oil sand
steam assisted gravity drainage(SAGD)
production technology
factors affecting productivity
recovery factor
distribution feature
development prospect
