Pengaruh penambahan Konsentrasi Reverse Demulsifier terhadap Nilai oil content dan Emulsion Block pada Air injeksi lapangan Jambi
DOI:
https://doi.org/10.29017/LPMGB.56.1.1726Kata Kunci:
water flooding, injection water quality, oil content, emulsion block, reverse demulsifier.Abstrak
Air injeksi yang digunakan sebagai fluida pendesak dalam water flooding sering ditemukan masalah pada kualitasnya, diantaranya adalah masalah oil content dan emulsion block. karena minyak bertindak sebagai perekat pada padatan yang menyebabkan penyumbatan pada pori – pori batuan. Hal tersebut berpotensi dalam penyebab terjadinya low oil recovery factor pada proses water flooding. Air injeksi (IW) dan air formasi (FW) sebelum di injeksikan kedalam reservoir perlu dianalisa dilaboratorium dengan tujuan air injeksi dapat digunakan sebagai fluida pendesak pada proses water flooding. Berdasarkan hasil uji laboratorium, air injeksi (IW) menunjukkan konsentrasi oil content yang tinggi yaitu 50.55 mg/L, sehingga dapat membentuk emulsion block, hal ini dapat mengakibatkan plugging pada pori-pori batuan. Untuk itu, solusi yang dipilih untuk menyelesaikan masalah emulsion block dalam penelitian ini yaitu dengan menggunakan chemical treatment. Masalah oil content dan emulsion block dapat diatasi dengan menggunakan reverse demulsifier, pada uji di laboratorium dengan menambahkan konsentrasi 50 mg/L reverse demulsifier kedalam air injeksi dapat meningkatkan kualitas air injeksi dari poor water quality (oil content 50.55 mg/L) menjadi good water quality (oil content 15.89 mg/L)
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