摘要
大庆油田致密油资源丰富,但存在储层致密、单井产量低、开发效益差等问题,为探索致密油有效开发技术,开展了致密油水平井开发现场试验.在精细构造研究基础上,井震结合研究致密油储层分布规律,精细刻画砂体空间展布特征,优选有利布井区.通过致密油储层水平井井网优化研究,形成了致密油藏水平井开发模式及井网优化技术,经过水平井优化设计、现场动态跟踪调整实施及有效的增产改造,取得较好的投产效果,为致密油储层有效开发奠定了基础。
The resources of the tight oil is rich and abundant in Daqing Oilfield,but there are the following problems such as tight reservoirs,low production for the individual well and poor development benefits.So the effective developing techniques are explored actively and the field tests of horizontal wells are conducted.Daqing tight oil is mainly distributed in the following two major serieses of the strata：Fuyu and Gaotaizi oil reservoirs.There are two large sedimentary types：deltaic front sand sheet in the later; distributary channel in the former.And moreover the reservoir conditions are rather complicated.By means of the fine structural study,and integrated with the well and seismic results,the distribution laws of the reservoirs are studied,the spatial spread features of the sandbodies are carefully characterized,the favorable well location area is chosen.On the basis of the above,combined with the characteristics of the terrestrial stress,the location of the horizontal wells are optimized,and furthermore by using numerical well test,numerical simulating and other methods and techniques,the parameters including the reasonable length of the horizontal wells,well spacing and so forth are optimized,and then the optimal researches on the well patterns of the tight oil reservoirs developed by the horizontal wells are engaged,the development mode and well pattern optimizing techniques are established,the corresponding field test is designed and successfully monitored.In a word,the drilling effects are much better,and moreover the production is perfect with the help of the effective simulations and reforms.All these achievements have laid a certain foundation for the effective development of the tight oil reservoirs.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2014年第5期30-35,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
中国石油天然气股份公司重大科技专项“大庆探区非常规油气勘探开发关键技术研究与现场试验”(2012E2603-01和2012E-2603-08)
关键词
大庆油田
致密油藏
井网优化技术
扶余油层
高台子油层
水平井
Daqing Oilfield
tight oil reservoir
well pattern optimization
Fuyu oil reservoir
Gaotaizi oil reservoir
horizontal well
