Analisis uji pressure build Up dan deliverability untuk prediksi plateau Time produksi sumur VLL-1

DETAIL KOLEKSI

Analisis uji pressure build Up dan deliverability untuk prediksi plateau Time produksi sumur VLL-1

5.0

Oleh : Hanif Fachrizal

Info Katalog

Nomor Panggil : 924/TP/2018

Penerbit : FTKE - Usakti

Kota Terbit : Jakarta

Tahun Terbit : 2018

Pembimbing 1 : Onnie Ridaliani

Pembimbing 2 : Andry Halim

Subyek : Fluid reservoir characteristics

Kata Kunci : pressure transient and deliverability test, drilling test, reservoir

Status Posting : Published

Status : Lengkap

File Repositori

No.	Nama File	Hal.
1.	2018_TA_TM_071001400070_Halaman-Judul.pdf	21
2.	2018_TA_TM_071001400070_BAB-1.pdf
3.	2018_TA_TM_071001400070_BAB-2.pdf
4.	2018_TA_TM_071001400070_BAB-3.pdf
5.	2018_TA_TM_071001400070_BAB-4.pdf
6.	2018_TA_TM_071001400070_BAB-5.pdf
7.	2018_TA_TM_071001400070_Daftar-Pustaka.pdf	2
8.	2018_TA_TM_071001400070_Lampiran.pdf

Abstrak
Abstract

A Analisis uji sumur gas VLL-1 dilakukan untuk meninjau karakteristikreservoir Beta-1 dan kondisi sumur. Uji sumur yang dilakukan adalah PressureBuild Up Test dengan metode Pressure Derivative dan Horner Plot pendekatanpseudo pressure. Selain itu analisis dilanjutkan dengan uji alir lapisan (deliverabiltytest) dengan metode Modified Isochornal Test dimana pengujian ini bertujuan untukmengetahui kemampuan produksi formasi didalam sumur yang diwakili oleh nilaiAbsolute Open Flow Potential (AOFP). Dari hasil uji Pressure Build Up dapatdiketahui beberapa parameter beserta karakteristik formasi yang dapat digunakanuntuk menentukan besarnya GIIP (by well). Sedangkan dari hasil uji deliverabilitasdapat diperhitungkan inflow performance relationship (IPR) formasi serta verticallift performance (VLP) dari sumur. Selanjutnya hasil analisis GIIP (by well), IPRdan VLP sumur akan digunakan untuk menentukan plateau time sumur VLL-1 padaberbagai laju alir produksi. Kedua uji sumur tersebut akan dilakukan denganbantuan software Ecrin dan perhitungan manual sebagai pembanding dan validasi.Berdasarkan hasil analisis Pressure Derivative didapatkan karakteristikreservoir Beta-1 yaitu model reservoir adalah Two Porosity PSS, dan modelboundary adalah One Fault, serta didapat nilai initial pressure (Pi) sebesar 2989,46psi. Pada reservoir Beta-1 memiliki nilai skin negatif yaitu -3,29, nilai permeabilitassebesar 6,01 mD, serta nilai kehilangan tekanan akibat skin sebesar -129,315 psi.Sedangkan pada hasil analisis Horner Plot didapatkan nilai flow efficiency sebesar1,9309 serta nilai radius investigasi sebesar 326,827 ft. Selanjutnya pada analisisuji deliverabilitas didapat nilai Absolut Open Flow Potential (AOFP) sebesar52864,9 mscf/D. Melalui perhitungan volumetrik didapatkan besarnya GIIP (bywell) sebesar 3438,18 mmscf. Kemudian analisis inflow performance relationshipreservoir Beta-1 dan tubing performance relationship sumur VLL-1 dilakukandengan software IPM Prosper. Diakhiri dengan prediksi plateau time menggunakansoftware IPM MBAL untuk berbagai laju alir produksi gas, sehingga didapatkanbahwa untuk laju alir produksi 3 mmscf/D, 6 mmscf/D, 9 mmscf/D, 11 mmscf/D,13 mmscf/D, 14 mmscf/D, dan 15,859 mmscf/D berturut-turut dapatmemproduksikan gas pada laju plateau selama 32 Bulan 3 Hari, 14 Bulan 4 Hari, 8Bulan 6 Hari, 6 Bulan 1 Hari, 4 Bulan 14 Hari, 3 Bulan 26 Hari, dan 2 Bulan 28Har

G Gas well test analysis for Vll-1 well has been done to evaluate Beta-1reseroir characteristics and condition of the well. The type of well test analysis werepressure derivative and horner plot method. Beside that, analysis was followed bydeliverabilty test with modified isochronal method which intend to determineformation production ability that described by absolute open flow potentiall(AOFP). Based on pressure build up result can be known several parameters offormation characteristics that can be used to determine GIIP (by well). Meanwhile,deliverability result can be used to determine formation inflow performancerelationship (IPR) and vertical lift performance (VLP) from the wellbore.Moreover, from GIIP (by well) analysis will calculate plateau time of VLL-1 wellfrom various production flow rate. These two well test analysis will done by Ecrin4.02 and manual calculation as a comparison.Based on pressure derivative analysis results, obtained Beta-1 reservoircharacteristics which is two porosity PSS as the reservoir model, and boundarymodel is one fault, and also initial pressure (Pi) values at 2989,96 psi. Beta-1reservoir obtained negative skin value of -3,29, permeability of 6.01 mD, andpressure loss caused by skin at -129,315 psi. meanwhile, from horner plot anlaysisresults obtained flow efficiency 1,9309 and radius of investigastion 326,827 ft. next,from the analysis of deliverability obtained absolute open flow potential (AOFP)52864,9 mscf/d. from volumetric calculation obtained GIIP (by well) 3438,18mmscf. And then, the analysis of Beta-1 reservoir inflow performance relationshipand VLL-1 well tubing performance relationship have been done by IPM Prospersoftware. At last plateau time predicted with IPM MBAL software for various gasflow rate, so that flow rate 3 mmscf/d, 6 mmscf/d, 9 mmscf/d, 11 mmscf/d, 13mmscf/d, 14 mmscf/d, and 15,859 mmscf/d can produce at plateau rate for about32 months 3 days, 14 months 4 days, 8 months 6 days, 6 months 1 days, 4 months14 days, 3 months 26 days, and 2 months 28 days.