八扇區(qū)水泥膠結(jié)測(cè)井

1、八扇區(qū)水泥膠結(jié)測(cè)井八扇區(qū)水泥膠結(jié)測(cè)井SBT一、SBT測(cè)井原理一、SBT WELL LOGGING PRINCIPLE 根據(jù)幾何聲學(xué)的原理：套管中的聲波由發(fā)射器發(fā)出，經(jīng)過(guò)泥漿傳播到套管壁，再經(jīng)過(guò)套管壁傳播到第一界面，而后傳播到第二界面。 傳播路徑大致是：套管波、水泥環(huán)波、地層波、泥漿波。最早到達(dá)接收器的套管波（滑行波），其次是地層波，最后泥漿波（直達(dá)波）。According to the principle of geometrical acoustics: acoustic tube by a transmitter, through the mud to the casing wall, a

2、nd 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, fina

3、lly mud wave (direct wave).SBT下井儀器技術(shù)指標(biāo) The technical indicators of SBT downhole instrument 儀器外徑：70mm 儀器長(zhǎng)度：2.9m 儀器重量：68KG 最高耐溫：150 最高耐壓：80MPa OD：70mm length：2.9m weight：68KG The max temperature：150 The max voltage：80MPaSBT主要作用 SBT the main role 精確評(píng)價(jià)水泥返高位置 評(píng)價(jià)第一界面水泥膠結(jié)情況 評(píng)價(jià)第二界面水泥膠結(jié)情況 能準(zhǔn)確評(píng)價(jià)第一界面存在的槽道、孔洞的位

4、置、大小及分布情況 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 測(cè)量范圍 Measuring Range 適用于新井固井質(zhì)量評(píng)價(jià) 適用于老井固井質(zhì)

5、量復(fù)查評(píng)價(jià) 適用于4-7英寸套管井質(zhì)量測(cè)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測(cè)量時(shí)間 Measurement of time固井48小時(shí)后進(jìn)行測(cè)井48 hours after cementing loggingSBT測(cè)井資料解釋方法 SBT logging data interpretation method 根

6、據(jù)八扇區(qū)膠結(jié)成像圖、聲幅、變密度曲線(xiàn)顯示綜合分析。根據(jù)聲幅曲線(xiàn)的幅度值，結(jié)合變密度顯示采用相對(duì)幅度法評(píng)價(jià)第一、二交界面的固井質(zhì)量。再結(jié)合八扇區(qū)膠結(jié)成像圖，在管外有水泥膠結(jié)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

7、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. 精確評(píng)價(jià)水泥返高位置。 Accurate evaluation of the cement return height position.在CBL顯示第一界面水泥膠結(jié)良好的位置，SBT膠結(jié)圖呈灰色或白色，顯示第一界面膠結(jié)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.l CBL顯示第一界面水泥膠結(jié)良好l SBT膠結(jié)圖呈白色表示第一界面交接不好。