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1、裸眼測井屮,以表層套管管鞋或技術(shù)套管管鞋深度為準(zhǔn),通過地層GR、電阻率等數(shù)據(jù)測出油層段深度。下套管時,在油頂之上50?100m的位置下同位素,固井結(jié)束,測固井質(zhì)量吋,通過地層GR測出油層段深度,然后反推出套管同位素深度。在射孔作業(yè)中,在射孔管柱中下入鉆桿同位素(深度在套管同位素之上30?50m),電測校深時測出鉆桿同位素深度,根據(jù)射孔槍與鉆桿同位素的相對距離,定出射孔槍相對于油層的深度,然后再通過井口配長,使射孔槍正對所要射開的油氣層。圖1隨鉆測井曲線CBL測井曲線3525序號層位測井解釋射開層段備注斜深m斜厚m垂深m垂厚m孔隙度%平均滲透率103pm2含油飽和度%泥質(zhì)含雖%結(jié)論射開
2、段斜深m斜片m垂深m垂厚m1①聊33420.2-3420.60.43136.9-3137.30.417.85&924.7油層*2②3422.7-3424.01.33139.4-3140.61.215.857.71.1汕層*3③3591.2-3594.63.43303.2-3306.53.38.55.354.722.7水淹層14?3595.8-3596.20.43307.7-3308.10.49.66.345.220.8水淹層3591.2-3600.18.93303.2-3311.98.7初期滑套5⑤3597.1-3597.60.53308.9-3309.40.511.39.856.2
3、22.4水淹層打開生產(chǎn)6⑥E2S313599.2-3600.10.93311.0-3311.90.910.44.160.429.9水淹層17?3605.4-3607.62.23317.0-3319.22.29.27.342.419.1水換8?3608.5-3617.28.73320.0-3328.58.511.08.957.523.1水淹層93619.7-3621.51.83331.0-3332.71.711.516.746.115.4水層103622.5-3622.90.43333.7-3334.10.414.41&047.921.1水層113701.0-3711.910.9341
4、0.2-3420.910.79.826.850.59.3油層■3701.0-3711.910.93410.2-3420.910.7初期滑套123719.9-3728.58.63428.7-3437.1&49.724.853.910.3汕層■3719.9-3728.58.63428.7-3437.18.4打開生產(chǎn)133733.8-3734.70.93442.2-3443.10.914.033.954.215.3油水同層14耶:<1【3753.4-3755.11.73461.3-3463.01.712.53&957.111.8可能油層153770.9-3772.92.03478.4-34
5、80.42.010.510.662.521.8油層13770.9-3777.66.73478.4一3484.96.5初期滑套163774.1一3777.63.53481.5-3484.93.411.468.35&24.4油層1打開生產(chǎn)173780.7-3784.53.83488.0-3491.73.712.576.157.45.3含水汕層183785.4-3788.53.13492.5-3495.63.114.5125.145.57.0油水同層備注:1、??根據(jù)電阻率測井,該汕層斜厚為斜深3420.2—3424.伽。該層初期不射開,等待后期上返。⑤⑥地質(zhì)油藏綜合分析,該層為少呈注入水
6、侵入,考慮到汕井的嚴(yán):能情況,初期射開生產(chǎn)。