Untuk mengurangi dampak dari banjir tersebut dapat dilakukan dengan cara mengendalikan banjir.
Bencana banjir tersebut bisa terjadi karena kapasitas tampung sungai berkurang (pendangkalan sungai, penciutan alur sungai, hambatan atau penutupan muara sungai), peningkatan debit sungai, perubahan tata guna lahan di DAS, bencana alam dan kegagalan fungsi bangunan pengendali banjir sungai. The conclusion of three results above that hydrocarbon prospect zone located at the top structure in the southeast near Tabah-3 well and north direction near the Tabah-4 and Tabah-5 well with characteristic reservoir in the form of low AI, high RMS dan high envelope.īanjir adalah aliran yang melebihi kapasitas tampung sungai, terjadi limpasan keluar badan sungai, terjadi genangan di kawasan yang tidak seharusnya tergenang dan terjadi kerugian. From RMS attribute analysis results, conglomeratic sandstone reservoir has a value that ranges from 2,5 to 5 and the reflection strength or envelope attribute analysis results, conglomeratic sandstone reservoir has a value that ranges between 2,5 and 4.
The result of model based inversion analysis obtained the acoustic impedance of conglomeratic sandstone reservoir from 23.000 to 30.000 ((ft/s)*(g/cc). The Model Based Inversion method is used to transform the reflection of seismic data into quantitative values of physical properties (acoustic impedance) and reservoir description. The processing begins by applying seismic attribute analysis using Root Mean Square (RMS) and Reflection Strength or Envelope to obtain distribution map of conglomeratic sandstone reservoir and used as Direct Hydrocarbon Indicator (DHI).
Characteristic and distribution of the reservoir was determined by using seismic attributes and model based inversion as the method. The hydrocarbon target in this field is the conglomeratic sandstone of the Lower Talangakar Formation because it indicated the presence of gas and condensate based on Drill Stem Test (DST) data. Tabah Field is a hydrocarbon exploration field located in Jambi Sub Basin, South Sumatra.
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