摘要
随着蒸汽吞吐开采进入后期,井楼油田一区Ⅲ5-6、Ⅲ8-9层,汽窜日趋剧烈,边水推进造成水淹井增多,油层纵横向动用程度差异大,区块油汽比逐渐下降;为改善区块生产状况,分析了区块油井吞吐规律及剩余油分布状况,提出了氮气化学降粘辅助吞吐、组合注汽、泡沫组合调剖、封堵水、换层补孔、短周期吞吐等综合治理对策。治理对策实施后,提高了储量动用程度,综合递减得到控制,取得了稳产增油的初步效果。
Gradually steam huff and puff production enters the later stage,in III5-6,III8-9 layer in Jinglou oilfield 1 block,gas channeling more violently,edge water caused more water flooding well,oil layer producing degree difference in horizontal and vertical direction is big,block oil and gas ratio gradually decreased.In order to improve block production situation,block oil well huff rules and residual oil distribution law has been analyzed,comprehensive countermeasures of nitrogen chemically decrease viscosity auxiliary stimulation,the combination of steam injection,foam combined sealing profile control,layer perforation adding,short period stimulation has been put forward.After the implementation of the measures,reserve producing degree is improved,the decreasing is controlled,which has obtained the initial effect of stable yield and oil increment.
出处
《石油地质与工程》
CAS
2012年第2期77-79,83,共4页
Petroleum Geology and Engineering
关键词
井楼油田
吞吐后期
水淹
汽窜
边水淹
治理对策
潜力
Jinglou oilfield
huff later stage
water flooding
gas channeling
edge water flooding
countermeasures
potential
