阵列声波测井海上油气田水力压裂效果评价技术  

Evaluation technology of hydraulic fracturing effect for offshore oiland gas fields with array acoustic logging

作　　者：张明 刘峰 张博 张璋[2] 祁晓 李东[2] 张聪慧[2] ZHANG Ming;LIU Feng;ZHANG Bo;ZHANG Zhang;QI Xiao;LI Dong;ZHANG Conghui(Tianjin Branch,CNOOC Limited(China),Tianjin 300459;Well-Tech Department,China Oilfield Services Limited,Tianjin 300459)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459 [2]中海油田服务股份有限公司油田技术事业部,天津300459

出　　处：《长江大学学报（自然科学版）》2023年第6期21-29,共9页Journal of Yangtze University(Natural Science Edition)

基　　金：国家科技重大专项“渤海油田高效开发示范工程”(2016ZX05058-002)。

摘　　要：近年来,海上压裂作业逐渐增多,深入了解和认识压裂裂缝的延伸情况、发育程度等信息,对于油气勘探开发至关重要。由于海上环境的特殊性,常规的压裂效果评价技术(井温法、放射性测量法、微地震监测、正交偶极各向异性反演)难以满足海上压裂效果评价需求,而海上压裂井中测井测试资料较为齐全,尤其是在压裂前、后的压裂井中测量了大量阵列声波数据。因此,基于阵列声波测井资料开展了水力压裂效果评价技术研究,主要在压裂前、后进行阵列声波测井,综合应用声波时差、横波幅度、声波各向异性、纵波走时层析成像、声波远探测等技术,对储层压裂缝高度进行定性评价,形成了一套针对海上油气田的水力压裂效果综合评价技术。该技术在渤海油田开发井中的成功应用,表明其能够满足海上油气田作业的要求,对于海上油气勘探开发具有重要意义。In recent years,offshore fracturing operations have gradually increased,and it is very important for the subsequent exploration and development of oil and gas to have a deep understanding of the extension and development degree of fractured fractures.Due to the particularity of the offshore environment,conventional fracturing effect evaluation technologies(well temperature method,radioactivity measurement method,microseismic monitoring,orthogonal dipole anisotropy inversion)are difficult to meet the needs of offshore fracturing effect evaluation.However,the well logging test data in offshore fracturing wells are more complete,especially the large amount of array acoustic wave data measured in the fractured wells before and after fracturing.Therefore,a research on hydraulic fracturing effect evaluation technology was carried out based on the array acoustic logging data.The array acoustic logging was mainly carried out before and after fracturing,and the ultrasonic wave time difference,S-wave amplitude,acoustic anisotropy,P-wave travel time tomography technology,acoustic remote detection and other technologies were comprehensively applied to qualitatively evaluate the reservoir pressure fracture height,forming a set of comprehensive evaluation technology of hydraulic fracturing effect for offshore oil and gas fields.The successful application of this technology in a development well in Bohai Oilfield shows that the above technology can meet the operation requirements of offshore oil and gas fields,and is of great significance for offshore oil and gas exploration and development.

关 键 词：声波各向异性 声波径向速度剖面 偶极横波远探测成像 压裂效果评价 

分 类 号：TE132.14[石油与天然气工程—油气勘探] P631.84[天文地球—地质矿产勘探]