| 牛德成,张聪慧,祁晓,向威,董兴蒙.CBMT第二界面成像理论和实验研究[J].,2019,38(3):418-426 |
| CBMT第二界面成像理论和实验研究 |
| CBMT second Interface imaging theory and experimental study |
| 投稿时间：2018-12-23 修订日期：2019-04-25 |
| 中文摘要: |
| 长期以来,测井中主要利用声波法测井探测水泥环第一界面进而评价固井质量。水泥环第二界面胶结状况评价则一直是固井质量评价的重大难点,通常只能根据声波变密度VDL进行定性评价。本文在中海油服自主研发的水泥胶结成像测井仪器CBMT基础上,利用CBMT贴壁全波波形,采取系统的数值模拟配以适当的实验室物理模拟相结合的方式,研究了利用水泥环第二界面反射波进行第二界面成像技术的可行性及影响因素,为实现水泥环第二界面定量评价奠定了理论和实验基础。 |
| 英文摘要: |
| For a long time, logging is mainly used to detect the first interface of cement by Sonic logging method and then evaluate cementing quality. Cementing condition evaluation of cement second interface has been a major difficulty in cementing quality evaluation, and it is usually only qualitative evaluation according to the VDL of sonic variable density [1]. Based on the CBMT of the cement cementation imaging logging instrument developed by COSL, this paper presents and proves the feasibility and influence factors of the second interface imaging technology by using the second interface reflection wave of the cement by using the CBMT-wall full-wave shape and combining the system numerical simulation with the appropriate laboratory physical simulation. Finally, the second interface imaging of the cement is realized by the experimental well measurement method, which is consistent with the experimental well design model. |
| DOI：10.11684/j.issn.1000-310X.2019.03.019 |
| 中文关键词: 固井质量 数值模拟 第二界面胶结 反射波成像 |
| 英文关键词: cementing quality numerical simulation cement second interface cementation imaging |
| 基金项目: |
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