八扇区水泥胶结测井

•aluation of the cement return height position.
• 在CBL显示第一 界面水泥胶结良 好的位置，SBT 胶结图呈灰色或 白色，显示第一 界面胶结中等或 差。
• The CBL displays the first interface cementing good location, SBT bond graph gray or white, displaying a first interface cementing medium or poor.
测量范围 Measuring Range
• • • • 适用于新井固井质量评价 适用于老井固井质量复查评价 适用于4-7英寸套管井质量测井 Suitable for the new well cementing quality evaluation • Suitable for the old well cementing quality review evaluation • Applicable to 4-7 inch casing well logging
测量时间 Measurement of time
固井48小时后进行测井 48 hours after cementing logging
SBT测井资料解释方法 SBT logging data interpretation method
• 根据八扇区胶结成像图、声幅、变密度曲线显示综合 分析。根据声幅曲线的幅度值，结合变密度显示采用相对 幅度法评价第一、二交界面的固井质量。再结合八扇区胶 结成像图，在管外有水泥胶结呈黑色，反之呈白色。 • According to the eight sector consolidated imaging, CBL, VDL shows make a comprehensive analysis. According to the CBL of amplitude values, using the relative amplitude method evaluates cementing quality of the first and the second interface with the VDL shows. Combining with the eight sector consolidated imaging, outside of the pipe with cement is black, otherwise is white.
SBT主要作用 SBT the main role
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精确评价水泥返高位置 评价第一界面水泥胶结情况 评价第二界面水泥胶结情况 能准确评价第一界面存在的槽道、孔洞的位置、 大小及分布情况 Accurate evaluation of the cement return height position Evaluation of the first interface cement bond Evaluation of the second interface cement bond Accurate evaluation of trench and cavern of position, size and distribution in the first interface
SBT下井仪器技术指标
The technical indicators of SBT downhole instrument
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仪器外径：70mm 仪器长度：2.9m 仪器重量：68KG 最高耐温：150℃ 最高耐压：80MPa OD：70mm length：2.9m weight：68KG The max temperature：150℃ The max voltage：80MPa
CBL显示第一界面 水泥胶结良好 SBT胶结图呈白色 表示第一界面交 接不好。
• CBL displays the first interface cementing well. • SBT bond graph is white, displaying the first interface cementing poor.
八扇区水泥胶结测井 SBT
一、SBT测井原理
一、SBT WELL LOGGING PRINCIPLE
• 根据几何声学的原理：套管中的声波由发射器发出，经过泥浆传 播到套管壁，再经过套管壁传播到第一界面，而后传播到第二界面。 • 传播路径大致是：套管波、水泥环波、地层波、泥浆波。最早到 达接收器的套管波（滑行波），其次是地层波，最后泥浆波（直达 波）。 • According to the principle of geometrical acoustics: acoustic tube by a transmitter, through the mud to the casing wall, and then after the casing wall spread to the first interface, and then spread to the second interface. • The propagation path is roughly: casing wave, cement ring wave , the formation wave , mud wave. The casing wave was the first to reach the receiver (slide wave), followed by the formation wave, finally mud wave (direct wave).