超稠油油藏蒸汽吞吐稳产技术对策研究  

TECHNICAL COUNTERMEASURES FOR STABLE PRODUCTION BY STEAM HUFF AND PUFF IN SUPER-HEAVY CRUDE RESERVOIR

作　　者：徐家年[1] 冯国庆[1] 任晓[2] 黄显德[3] 刘虹利[1] 

机构地区：[1]'油气藏地质及开发工程'国家重点实验室.西南石油大学,四川成都610500 [2]中国石油西南油气田分公司川中油气矿天然气净化厂,四川遂宁629000 [3]中国石油辽河油田公司,辽宁盘锦124010

出　　处：《西南石油大学学报（自然科学版）》2007年第5期90-93,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：以辽河油田曙一区超稠油油藏为例,利用蒸汽吞吐温度场、饱和度场拟合结果及高温吸汽剖面、产液剖面、井温剖面等现场监测资料,分析了超稠油单井常规蒸汽吞吐高周期递减的主要因素。研究表明超稠油单井常规蒸汽吞吐油层动用程度低、油井供液能力下降是高周期递减的主要因素。针对这些因素,强化机理研究,加大室内实验和现场试验力度,提出了多井同步蒸汽吞吐、间歇蒸汽吞吐、高温调剖、一注多采等稳产技术对策。在现场应用后,有效地缓解了超稠油高周期蒸汽吞吐产量递减,周期递减由8.31%下降到3.25%,相同周期产油量高于单井常规蒸汽吞吐200t左右,油汽比提高0.03。In this paper, super-heavy crude reservoir of Liaohe Oil Field in Shu 1 area is taken as an example. Using the steam huff and puff temperature field, saturation field result and the in-situ monitoring data of high temperature steam intake and liquid-producing profiles, well temperature profile, the primary factors that the super-heavy crude single well convention steam huff and puff high cycle decreases progressively are analyzed. Research shows the low producing degree of super-heavy crude reservoir and the oil well decreases the fluid providing ability lead to the single well convention steam huff and puff high cycle decreasing progressively. Based on the above decreasing factors, strengthening mechanism, increased indoor and field experiment, a simultaneous multi-well cyclic steam huff and puff, intermittent steam huff and puff, high temperature profile control to adopt a multi-injection technology and other productivity measures are suggested. With the application of stability technical countermeasures in field, which effectively lightens the high-cycle steam huff and puff of super-heavy crude production decline, decreasing cycle dropped to 3.25% from 8.31%, higher than the same period production of conventional steam huff and puff 200 tons single well, about 0.03 higher in oil-gas ratio.

关 键 词：超稠油 蒸汽吞吐 剩余油 递减 辽河油田 

分 类 号：TE345[石油与天然气工程—油气田开发工程]