新站油田地应力研究与应用  

Research on Earth stress and its application to Xinzhan oilfield

作　　者：左松林[1] 鹿立卿[2] 肖洪伟[2] 徐安军[2] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [2]大庆油田有限责任公司第九采油厂,黑龙江大庆163853

出　　处：《大庆石油地质与开发》2008年第1期93-96,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：大庆长垣西部新站油田属于特低渗透裂缝型油藏。油田注水开发主要矛盾是油井见水早、含水上升快、产量递减快，并且见水井没有明显的方向性，注采系统调整难度大，油田稳产难度大。为此，通过井壁崩落、微地震、波速各向异性等方法，对新站油田地应力进行研究，搞清了新站油田现今最大水平主应力方向主要为NE71．4°～100°，近东西向，从而明确了新站油田裂缝发育方位。应用地应力研究结果，新站油田宜采用矩形五点法或菱形反九点法注采井网注水开发，近东西向和南北向的油井要慎重压裂。Xinzhan oilfield in the west of Daqing placanticline is one ultra low the main conflicts for water flood development are： early water breakthrough in fast decrease of oil production, without obvious direction in water breakthrough permeability oil reservoir. In this field, producers, quick increase of water cut, wells, great difficulty in injection -production system adjustment and great difficulty in production stabilization. Therefore, based on many methods, such as borehole wall breakage, micro seismic and wave velocity anisotropy, the Earth stress in Xinzhan oilfield is studied to make clear the orientation of the maximum horizontal main stress. Then will be determined to guide the well pattern arrangement and hydraulic the fractures development orientation in this field fracturing.

关 键 词：裂缝 地应力 最大水平主应力 井网部署 水力压裂 

分 类 号：TE321[石油与天然气工程—油气田开发工程]