Search Repository STTMIGAS Balikpapan

Seiring Berjalannya waktu produksi minyak dan gas akan mengalami
penurunan yang disebabkan antara lain penurunan tekanan reservoir maupun
karena kerusakan formasi, maka perlu dilakukan pengujian untuk mengetahui
kondisi formasi yaitu dengan melakukan uji sumur menggunakan metode
Pressure Build Up Test serta dilakukan uji deliverability untuk mengetahui
kondisi produktivitas sumur.
Pada pengujian Pressure Build Up Test ini penulis menggunakan metode
horner dengan pendekatan Pressure Square dikarenakan tekanan yang berada di
bawah 2000 psia, untuk uji deliverability penulis melakukannya dengan
pendekatan Modified Isocronal dengan menggunakan simulator prosper untuk
menentukan produktivitas maksimumnya.
Dari hasil analisa PBU dengan perhitungan manual dapat diketahui nilai
dari k=39.6849707 mD , S = 3.712255656 , Ps = 15.58971032 psia, FE =
0.650663012, PI =137.842 Mscfd/psi. Dari hasil analisa Uji Deliverability
menggunakan simulator Prosper dengan metode Modified Isocronal didapatkan
nilai AOF = 26165.997 Mscf/day.
Berdasarkan hasil analisis sumur gas YR-52 lapangan Y berdasarkan
indikator absolute open flow untuk menentukan produktivitas maksimum
didapatlah nilai Skin sebesar 3.712255656 dan penurunan tekanan pada sumur
produksi sebesar 15,58971032 Psia. Didapat juga AOF sebesar 26165.997
Mscf/day.

As time goes on, oil and gas production will experience a decrease
due to, among others, a decrease in reservoir pressure and damage to formations,
it is necessary to conduct tests to determine the condition of the formation,
namely by conducting a well test using the Pressure Build Up Test method and a
deliverability test to determine the condition of well productivity.
In this Pressure Build Up Test, the writer uses the Horner method with the
Pressure Square approach because the pressure is below 2000 psia. For the
deliverability test, the writer uses the Modified Isocronal approach using the
prosper simulator to determine its maximum productivity.
From the results of PBU analysis with manual calculations, it can be seen
that the value of k = 39.6849707 mD, S = 3.712255656, Ps = 15.58971032 psia,
FE = 0.650663012, PI = 137.842 Mscfd / psi. From the analysis of the
Deliverability Test using the Prosper simulator with the Modified Isocronal
method, the AOF value is obtained = 26165.997 Mscf / day.
Based on the results of the analysis of the gas well YR-52 field Y
based on absolute open flow indicators to determine maximum productivity, the
Skin value is 3.712255656 and the pressure drop in the production well is
15.58971032 Psia. Also obtained AOF of 26165,997 Mscf/day