低渗底水油藏缝高控制压裂技术在安塞油田的应用

针对油层之下有水层且隔层较薄的底水油藏,开展了多级注入下沉式转向剂缝高控制压裂技术研究,并通过室内实验,优选出下沉剂类型及组合方式。最后,结合化子坪储层特征,利用GOHFER真三维压裂软件,优化了下沉剂多级注入工艺在化子坪区的施工参数。现场试验了14口井,增油控水效果明显。

Fracture technology controlled by fracture length in bottom water reservoir with low permeability and its application for Ansai oilfield

In bottom water reservoir with thin interlayer and water layer underlying oil layer,fracture technical research controlled by fracture length in multi - injecting with setting diverting agent has been developed and studied.Through laboratory experiments,the type and combined pattern of the setting diverting agent have been sorted out.Finally,the operation parameters on multi - injecting the settling converting agent was optimized by using 3D software in Huaziping block.The oilfield application in 14 wells shows the purposes of oil increment and Water control have been achieved.