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STUDI INTEGRASI WELL TESTING ANALYSIS DAN RESERVOIR CHARACTERIZATION UNTUK DISTRIBUSI PROPERTI RESERVOIR

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Penilaian

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Pemodelan reservoir yang dikonfirmasi oleh well testing analysis memiliki tingkat akurasi yang baik terlebih jika di tambah dengan data pendukung seperti well log dan informasi geologi seperti struktur dan lingkungan pengendapan. Meskipun, terdapat kekurangan dalam hal area observasi yang terbatas pada lapisan uji dan radius investigasi. Sedangkan, pada reservoir characterization area observasi relatif luas yang mencakup seluruh lapisan reservoir, namun memiliki tingkat ketidakpastian yang cukup tinggi. Penelitian ini dilakukan untuk memahami pengaruh integrasi well testing analysis dan reservoir characterization secara mendalam dalam pemodelan reservoir. Penentuan model reservoir berdasarkan well testing analysis, digunakan metode pressure derivative dan semi-log plot. Untuk memperoleh hasil invers problem yang baik digunakan software Ecrin Kappa. Sementara itu metode reservoir characterization dalam pemodelan reservoir menggunakan software PETREL, dalam proses ini integrasi antara well testing analysis dan reservoir characterization dihubungkan dengan penentuan nilai major dan minor pada parameter variogram berdasarkan radius investigasi. Model reservoir hasil integrasi kedua metode tersebut sesuai dengan parameter petrofisika dan fluida reservoir, ditandakan dengan hasil initialisasi dengan selisih sebesar 0.025%. History matching juga mengkonfirmasi bahwa model reservoir sesuai dengan karakter dinamik reservoir yang direpresentasikan sebagai laju alir dan tekanan reservoir.rnrnModeling of reservoir characterization which is confirmed by well testing analysis has a good degree of accuracy especially when added with supporting data such as well logs, geological structure and environment of deposition. Although, there is a shortage in the event of a limited observation areas on a layer of testing and a radius of investigation. Whereas, in the reservoir characterization of relatively broad observation area which covers the whole layer reservoir, but has a fairly high degree of uncertainty. This research was conducted to understand the influence of integration of well testing analysis and reservoir characterization in depth in modeling reservoir characterization. Determination of reservoir character based on well testing analysis, used methods of pressure derivative and semi-log plot. To obtain the results of inverse problem of good used software Ecrin Kappa. While that method of reservoir characterization in reservoir modeling using software PETREL, in this process of integration between well testing analysis and reservoir characterization associated with the determination of the value of major and minor on the variogram based on the parameters radius of investigation. Reservoir character of the results of the integration of both these methods in accordance with the parameters of the petrophysics and reservoir fluid, indicated by the results of the initialisasi with the difference of 0.025%. History matching confirm that reservoir models also correspond to the dynamical characters of reservoir is represented as flow rate and pressure of the reservoir.,

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Penerbit

: ., 2019

Deskripsi Fisik

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Bahasa

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Pernyataan Tanggungjawab

perpustakaan.itsb.ac.id

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