Analisis pressure build up test dengan metode horner dan kurva derivative pada sumur rg lapangan tama

DETAIL KOLEKSI

Analisis pressure build up test dengan metode horner dan kurva derivative pada sumur rg lapangan tama

Oleh : Ricardo Giotama

Info Katalog

Penerbit : FTKE - Usakti

Kota Terbit : Jakarta

Tahun Terbit : 2023

Pembimbing 1 : Lestari Said

Pembimbing 2 : Arinda Ristawati

Subyek : Drilling and boring machinery

Kata Kunci : pressure Build-Up, Software X, Horner, Skin, IPR

Status Posting : In Pres

Status : Lengkap

Abstrak
Abstract

D Demi menjaga kestabilan pada sumur produksi diperlukan beberapa penanganan yang dinilai sangat penting dalam mengefisiensikan produksi pada sumur. Adanya tahapan well testing mejadi upanya dalam menjaga kelangsungan sumur dalam berproduksi. Pressure Build-Up adalah salah satu dari tahapan ini. Adanya Pressure Build-up test ini bertujuan untuk mengidentifikasi keadaan pada sumur apakah sumur mengalami kerusakan pada formasi (formation damage) yang dapat menyebabkan keadaan sumur mengalami penurunan diwaktu sumur telah berproduksi. Pressure Build-Up test dapat dilakukan dengan cara memproduksikan sumur hingga waktu tertentu dengan laju aliran yang konstan (flow period) selama waktu tertentu kemudian sumur ditutup (shut-in period). Pada saat sumur ditutup menyebabkan kenaikan tekanan yang kemudian dicatat sebagai fungsi waktu. Analisis Pressure Build-Up test penelitian ini bertujuan untuk mengetahui parameter dan model reservoir yaitu seperti model reservoir, boundary reservoir, tekanan Initial reservoir (Pi), skin (s), penurunan tekanan akibat skin (âˆ†ð‘ƒð‘ ), permeabilitas (k) dan laju alir maksimum sumur. Pada pengujian ini dilakukan pada sumur RG lapangan TAMA, dengan analisis Pressure Build-Up menggunakan metode Horner dan kurva derivative. Hasil dari penelitian ini, yaitu analisis dengan menggunakan software X dan kurva derivative plot hasil yang diperoleh adalah model reservoir sumur RG homogeneous dan boundary reservoir infinite model, dengan nilai initial reservoir pressure (Pi) sebesar 812,748 psia, Permeabilitas (k) sebesar 6,51 mD, skinsebesar -3.02, penurunan tekanan akibat skin (âˆ†ð‘ƒð‘ ) sebesar -275,314 psia. Selanjutnya perhitungan manual exel dengan metode Horner didapatkan nilai Pressure initial (Pi) sebesar 843,064, skin sebesar -3,75, Î”Pskin sebesar -317.658 psi, permeabilitas (k) sebesar 6,873 mD, flow efficiency (FE) sebesar 0,002, radius investigasi (ri) sebesar 750 feet, dan laju alir maksimum sebesar 525,098 bopd dan tekanan rata-rata menggunakan metode Ramey-Cobb sebesar 804,96 psi serta MBH sebesar 822,223 psi.

I In order to maintain stability in production wells, several treatments are required which are considered very important in making production efficient in wells. The stages of well testing are an effort to maintain the continuity of the well in production. Pressure Build- Up is one of these stages. The existence of this Pressure Build-up test aims to identify the condition of the well whether the well has damage to the formation (formation damage) which can cause the condition of the well to experience production during drilling operations or during the time the well has been in production. A pressure build-up test can be carried out by producing a well for a certain time with a constant flow rate (flow period) for a certain time and then closing the well (shut-in period). When the well is closed it causes an increase in pressure which is then recorded as a function of time. Analysis of the Pressure Build-Up test of this study aims to determine the parameters and reservoir models, namely the reservoir model, boundary reservoir, average reservoir pressure (Pr), skin (s), pressure drop due to skin (âˆ†ð‘ƒð‘ ), permeability (k) and the maximum flow rate of the well. This test was carried out on the TAMA field RG well, with Pressure Build-Up analysis using the Horner method and derivative curves. The results of this study, namely the analysis using software X and using the derivative plot curve the results obtained are homogeneous reservoir model RG well and boundary reservoir model, with an initial reservoir pressure (Pi) value of 812,748, permeability (k) of 6,51 mD , skin is -3.02, pressure drop due to skin (âˆ†ð‘ƒð‘ ) is -275,314 psia. Furthermore, manual exel calculations using the Horner method obtained an initial Pressure (Pi) value of 843,064, skin of -3,75, Î”Pskin of -316,954 psi, permeability (k) of 6,873 mD, flow efficiency of 0,002, radius of investigation (ri) of 750 feet, and a maximum flow rate of 525,098 bopd and an average pressure using the Ramey-Cobb method of 804,96 psi and an MBH of 822,223 psi.