摘要
对压裂缝高度的评价一直是评价储层压裂效果的核心,由于受制于海上施工时间及放射性污染等因素,传统的井温测井、同位素测井等评价方法无法在海上油田应用。在评价固井水泥窜层风险基础上,过套管交叉偶极子声波和声波水泥胶结(SBT)固井质量测井技术相互结合,可以准确地评价海上致密储层压裂缝高度,从而定量对压裂施工效果进行指导和评估。通过多口井实际应用,该技术方法效果较好,值得推广应用。
The height of fracturing fractures is one of the essential parameters in the evaluation of fracturing effect.Due to the restrictions such as long period of operation and high risk of radioactive pollution,conventional ways of evaluating fracturing fractures,borehole temperature and isotope logging,cannot be applied for offshore oil field.On the basis of assessing the risk of cross strata,a method combining casing cross dipole acoustic and cementing quality logging(SBT)is proposed to precisely evaluate the height of fracturing fractures.The height of fracturing fractures provided by this method are proved to be precise enough to guide the fracturing operations in several offshore wells,which demonstrates the method is worth applying widespread.
出处
《石油地质与工程》
CAS
2016年第5期88-90,96,共4页
Petroleum Geology and Engineering
基金
中国海油石油总公司"十二五"重大科技专项"中国近海低孔低渗油气藏勘探开发关键技术与实践(CNOOC-KJ125 ZDXM07 LTD)"部分研究成果
该研究成果已被授予国家发明专利"一种确定海上低孔渗储层压裂裂缝高度方法
专利号201410026095.4"
关键词
致密储层
交叉偶极子声波
固井质量
压裂缝
tight sandstone reservoir
cross dipole acoustic logs
cementing quality
fracturing fracture
