海拉尔盆地塔木兰沟组储层可压性评价  

Evaluation of reservoir compressibility of Tamulangou reservoir in Hailar basin

作　　者：王贤君[1,2] 肖丹凤 魏宇[1,2] 吴浩兵 WANG Xianjun;XIAO Danfeng;WEI Yu;WU Haobing(Oil Production Engineering Research Institute of Daqing Oilfield Co.,Ltd.,PetroChina,Daqing,Heilongjiang 163453,China;Heilongjiang Key Laboratory of Oil and Gas Reservoir Stimulation,Daqing,Heilongjiang 163453,China)

机构地区：[1]中国石油大庆油田有限责任公司采油工程研究院,黑龙江大庆163453 [2]黑龙江省油气藏增产增注重点实验室,黑龙江大庆163453

出　　处：《石油地质与工程》2022年第5期106-110,114,共6页Petroleum Geology and Engineering

摘　　要：海拉尔盆地塔木兰沟组储层属于低孔低渗层系,天然裂缝发育,多种岩性并存,储层敏感性强,岩石力学特征不明确。为此,在海拉尔油田开展储层三类岩性岩石力学参数测试及可压性评价,以脆性指数、断裂韧性、水平应力差和天然裂缝发育程度为影响因素,通过归一法建立了塔木兰沟组储层可压性模型,结合测井解释结果给出了可压性指数。实验结果表明,泥质粉砂岩、凝灰岩可压性指数为0.4~0.6,为第二类可压性层段;角砾岩可压性指数为0.3~0.4,为第三类可压性层段。获得的评价结果为海拉尔油田塔木兰沟组储层压裂优化设计提供了依据,提高了压裂施工的成功率。The reservoirs of Tamulangou formation are characterized by low porosity and low permeability,developed natural fractures,coexistence of various lithology and strong sensitivity,but the mechanical characteristics of rock are not clear.Therefore,the mechanical parameters test and compressibility evaluation of three types of lithology and rock in Hailar oilfield are carried out.Taking brittleness index,fracture toughness,horizontal stress difference and natural fracture development degree as influencing factors,the compressibility model of Tamulangou formation is established by normalization method,and the compressibility index is given in combination with the logging interpretation.The experimental results show that the compressibility index of argillaceous siltstone and tuff is 0.4~0.6,which is the second type of compressible interval,while the compressibility index of breccia is 0.3~0.4,which belongs to the third type.The evaluation results provide a basis for the optimal fracturing design and improve the success rate of fracturing operation.

关 键 词：海拉尔油田 塔木兰沟组 岩石力学 可压性评价 可压性指数 

分 类 号：TE3[石油与天然气工程—油气田开发工程]