Optimasi Massa Laju Alir Gas Pada Multi Gas Wells System Menggunakan Simulasi Pipesim

Umam, Sayed Chairul (2016) Optimasi Massa Laju Alir Gas Pada Multi Gas Wells System Menggunakan Simulasi Pipesim. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sumur gas harus dirawat atau dijaga agar massa (m) gas yang terkirim sesuai permintaan. Dengan kata lain, jika terlalu banyak massa yang terkirim melebihi permintaan maka akan dikembalikan lagi ke dalam sumur. Sebaliknya, bila massa kurang akan menyebabkan produksi tidak maksimal bahkan dapat menyebabkan trip (mati) misalnya pada kompressor. Melihat fungsinya maka pengaturan neraca massa sangat penting pada sistem ini diperlukan perlakuan khusus salah satunya adalah dengan mengoptimasi kondisi laju massa dari setiap sumur dijadikan sebagai fungsi objektif dari optimasi. metode simpleks yang digunakan untuk mencari target laju massa upstream tiap sumur dan hubungannya dengan kehilangan tekanan. Variabel dalam penelitian ini memiliki constraint yaitu tekanan maksimum – tekanan minimum dan kapasitas laju massa maksimum pada setiap sumur. Hasil dari optimasi menunjukkan bahwa rata rata error 6.7% dari 15 sumur dengan nilai laju massa setiap sumur karakteristik A memiliki nilai 0.27 Kg/s dengan pressure drop 56261.22 Pa sedangkan pada karakteristik B memiliki nilai 0.43 Kg/s dengan kehilangan tekanan 340601 Pa dengan total laju massa 5 kg/s. ====================================================================== Gas wells must be treated or maintained gas mass flowrate that is delivered on demand. In other words, if too much mass that sent exceed will be reinstated into the well. And then when mass flowrate less will cause not maximal production and can even cause trip for example on the compressor. Therefore, See the function of mass balance needed special treatment in this system, one of which is by optimizing mass flowrate condition of any well made as objective function. On this research uses the Beggs-Brill equation and Gilbert correlation to find out the value of mass flowrate and pressure drop where each well will be collected at one point called with header and from the header will be sent to a separator facility. The mass flowrate target is the minimize difference sums of 15 wells with the mass flowrate at header is constant. Each well will divided into nine wells has same characteristics which called well A and six wells has same characteristics which called well B. which mass flowrate well is variables will be optimized.using simplex method. Mass flowrate target should not surpass the maximum mass capacity at each well. The variable have a constraint i.e. the maximum pressure – minimum pressure and maximum flowrate mass capacity at each well. The results show that the optimization of average error is 6.7% from 15 wells. Well A has a value is 0.27 Kg/s with pressure drop 56261.22 Pa while on well B has a value is 0.43 Kg/s with pressure drop 340601 Pa with total mass flowrate about 5 kg/s.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 671.832 Uma o
Uncontrolled Keywords: Optimasi; Analisa Sistem Nodal; Sumur Gas; IPR; OPR; Beggs-Brill; Gilbert; Optimization; Nodal Analysis System; Gas well
Subjects: T Technology > TS Manufactures > TS156 Quality Control. QFD
Divisions: Faculty of Industrial Technology > Physics Engineering > (S1) Undergraduate Theses
Depositing User: Mrs Anis Wulandari
Date Deposited: 13 Jun 2017 03:49
Last Modified: 27 Dec 2018 04:36
URI: http://repository.its.ac.id/id/eprint/41623

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