DETAIL KOLEKSI

Analisis uji pressure build-up dan deliverability sumur mrk-1 di lapangan x


Oleh : Muhammad Refli Kashah

Info Katalog

Penerbit : FTKE - Usakti

Kota Terbit : Jakarta

Tahun Terbit : 2025

Pembimbing 1 : Samsol

Pembimbing 2 : Aqlyna Fattahanisa

Subyek : -

Kata Kunci : Deliverability, Permeability, Pressure build-up, Skin

Status Posting : Published

Status : Lengkap


File Repositori
No. Nama File Hal. Link
1. 2025_SK_STP_071002100032_Halaman-Judul.pdf 11
2. 2025_SK_STP_071002100032_Surat-Pernyataan-Revisi-Terakhir.pdf 1
3. 2025_SK_STP_071002100032_Surat-Hasil-Similaritas.pdf 1
4. 2025_SK_STP_071002100032_Halaman-Pernyataan-Persetujuan-Publikasi-Tugas-Akhir-untuk-Kepentingan-Akademis.pdf 1
5. 2025_SK_STP_071002100032_Lembar-Pengesahan.pdf 1
6. 2025_SK_STP_071002100032_Pernyataan-Orisinalitas.pdf 1
7. 2025_SK_STP_071002100032_Formulir-Persetujuan-Publikasi-Karya-Ilmiah.pdf 1
8. 2025_SK_STP_071002100032_Bab-1.pdf 3
9. 2025_SK_STP_071002100032_Bab-2.pdf 13
10. 2025_SK_STP_071002100032_Bab-3.pdf 5
11. 2025_SK_STP_071002100032_Bab-4.pdf 19
12. 2025_SK_STP_071002100032_Bab-5.pdf 2
13. 2025_SK_STP_071002100032_Daftar-Pustaka.pdf 4
14. 2025_SK_STP_071002100032_Lampiran.pdf 13

P Penelitian ini bertujuan untuk mengevaluasi performa dan karakteristik reservoir gas dari sumur mrk-1 yang berada di lapangan x dengan menggunakan pendekatan analisis tekanan transien menggunakan pressure build-up test dan uji deliverability. permasalahan yang menjadi fokus utama dalam studi ini mencakup identifikasi model reservoir dan batas reservoir, analisis parameter tekanan serta laju alir produksi, perhitungan tekanan reservoir rata-rata, penilaian tingkat kerusakan formasi melalui nilai skin, dan perhitungan absolute open flow potential (aofp).pendekatan pressure build-up digunakan untuk mengetahui perubahan tekanan dasar sumur setelah proses shut-in dilakukan. data yang dianalisis berasal dari hasil pengujian lapangan dan diolah menggunakan pressure transient software serta perhitungan manual melalui ms.excel sebagai pembanding. metode yang digunakan dalam analisis pressure build-up meliputi metode pressure derivative untuk mengidentifikasi pola aliran serta metode horner dengan pendekatan pseudo-pressure ψ(p) untuk memperoleh parameter tekanan awal sumur (pi), permeabilitas, ketebalan zona produktif, serta faktor skin (s). untuk penghitungan tekanan reservoir rata-rata, digunakan kombinasi dari metode matthews-brons-hazebroek (mbh), ramey-cobb, modified muskat, dan arps-smith guna menjamin keakuratan hasil interpretasi.hasil interpretasi pressure build-up menunjukkan bahwa sumur mrk-1 memiliki model sumur vertical, model reservoir two porosity slab, dan batas reservoir berbentuk rectangle. berdasarkan analisis menggunakan pressure transient analysis didapatkan permeabilitas sebesar 267.33 md, sedangkan analisis menggunakan ms.excel didapatkan permeabilitas sebesar 260.05 md. faktor skin yang diperoleh melalui pressure transient software sebesar 7.53 dan menggunakan perhitungan manual ms.excel didapatkan sebesar 10.91, nilai skin ini menunjukkan adanya hambatan aliran fluida akibat kerusakan formasi di sekitar lubang bor. selain itu, nilai tekanan reservoir rata-rata yang dihitung pada saat middle-time dengan metode matthews-brons-hazebroek (mbh) didapatkan sebesar 1934.07 psia dan metode ramey-cobb sebesar 1934.56 psia, sedangkan pada saat late-time dengan metode arps-smith sebesar 1952.828 psia dan modified muskat sebesar 1956 psia.untuk analisis deliverability, digunakan metode back pressure test untuk memproduksi sumur pada berbagai tekanan balik. hasil uji ini digunakan untuk menghitung nilai absolute open flow potential (aofp) dan membuat kurva inflow performance relationship (ipr). nilai absolute open flow potential (aofp) yang dihitung berdasarkan data uji deliverability menggunakan pressure transient software didapatkan sebesar 20198.9 mscfd sedangkan menggunakan ms.excel didapatkan sebesar 22789.5 mscfd. kurva ipr juga menunjukkan tren penurunan laju alir seiring dengan meningkatnya tekanan dasar sumur, yang sesuai dengan karakteristik sistem aliran gas pada reservoir terbatas.perbandingan hasil antara pressure transient software dan metode manual ms.excel menunjukkan tingkat kesesuaian tinggi dengan deviasi kurang dari 5%, yang menandakan validitas dan konsistensi data. hal ini menguatkan bahwa kedua pendekatan dapat saling melengkapi dalam mengevaluasi performa reservoir dan memberikan gambaran menyeluruh terhadap potensi produksi sumur. temuan ini penting sebagai dasar dalam pengambilan keputusan teknis seperti optimasi produksi dan perencanaan stimulasi reservoir untuk mengatasi efek skin yang tinggi.secara keseluruhan, penelitian ini berhasil mengidentifikasi karakteristik penting dari sumur mrk-1 baik dari sisi geometri reservoir maupun performa alirnya. hasil ini tidak hanya memberikan wawasan akademik dalam bidang teknik reservoir, tetapi juga menawarkan kontribusi praktis dalam pengelolaan lapangan gas bumi, khususnya dalam hal optimalisasi produksi dan evaluasi kondisi formasi di sekitar sumur. studi ini juga dapat menjadi referensi bagi penelitian selanjutnya dalam pengembangan metode analisis pressure build-up dan uji deliverability secara lebih komprehensif.

T This study aims to evaluate the performance and characteristics of the gas reservoir from well mrk-1 located in field x by using a transient pressure analysis approach through pressure build-up tests and deliverability tests. the main issues addressed in this study include identifying the reservoir model and boundaries, analyzing pressure parameters and production flow rates, calculating the average reservoir pressure, assessing the degree of formation damage through the skin factor, and calculating the absolute open flow potential (aofp).the pressure build-up approach is used to observe changes in bottom-hole pressure after the shut-in process. the analyzed data are obtained from field tests and processed using pressure transient software as well as manual calculations via ms.excel as a comparison. the methods applied in the pressure build-up analysis include the pressure derivative method to identify flow patterns and the horner method with a pseudo-pressure ψ(p) approach to obtain initial reservoir pressure (pi), permeability, productive zone thickness, and skin factor (s). to calculate the average reservoir pressure, a combination of the matthews-brons-hazebroek (mbh), ramey-cobb, modified muskat, and arps-smith methods are used to ensure accuracy in interpretation results.the interpretation results of the pressure build-up test show that well mrk-1 is classified as a vertical well with a two-porosity slab reservoir model and rectangular reservoir boundaries. based on analysis using pressure transient software, the permeability is found to be 267.33 md, while manual analysis using ms.excel yields a permeability of 260.05 md. the skin factor obtained from the pressure transient software is 7.53, while the manual calculation using ms.excel gives a value of 10.91; this high skin value indicates flow restrictions caused by formation damage around the borehole. in addition, the average reservoir pressure calculated at middle-time using the matthews-brons-hazebroek (mbh) method is 1934.07 psia, and using the ramey-cobb method is 1934.56 psia, while at late-time, the arps-smith method gives 1952.828 psia and the modified muskat method gives 1956 psia.for the deliverability analysis, a back pressure test is conducted to produce the well at various back pressures. the results of this test are used to calculate the absolute open flow potential (aofp) and construct the inflow performance relationship (ipr) curve. the aofp value calculated based on deliverability test data using pressure transient software is 20,198.9 mscfd, while the manual calculation using ms.excel produces a value of 22,789.5 mscfd. the ipr curve also shows a declining trend in flow rate as the bottom-hole pressure increases, which aligns with the flow characteristics of a limited gas reservoir system.a comparison between the results obtained using pressure transient software and the manual ms.excel method shows a high level of agreement, with deviations of less than 5%, indicating data validity and consistency. this finding strengthens the view that both approaches can complement each other in evaluating reservoir performance and provide a comprehensive picture of well production potential. these results are important as a basis for technical decision-making, such as production optimization and planning reservoir stimulation to overcome high skin effects.overall, this study successfully identifies important characteristics of well mrk-1 from both the reservoir geometry and production performance perspectives. the results not only provide academic insight in the field of reservoir engineering but also offer practical contributions to natural gas field management, particularly in terms of production optimization and evaluating formation conditions around the wellbore. this study can also serve as a reference for future research in developing more comprehensive pressure build-up and deliverability analysis methods.

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