Analisis pressure build up dan deliverability sebagai evaluasi partial penetration sumur x-15

DETAIL KOLEKSI

Analisis pressure build up dan deliverability sebagai evaluasi partial penetration sumur x-15

Oleh : Yustitia Rizki Arumdanie

Info Katalog

Nomor Panggil : 897/TP/2018

Penerbit : FTKE - Usakti

Kota Terbit : Jakarta

Tahun Terbit : 2018

Pembimbing 1 : Onnie Ridaliani

Pembimbing 2 : Andry Halim

Subyek : Petroleum engineering - Drilling well;Partial penetration

Kata Kunci : pressure build up, deliverability, pressure derivative, horner, dual porosity, partial penetration

Status Posting : Published

Status : Lengkap

File Repositori

No.	Nama File	Hal.
1.	2018_TA_TM_071001400165_Halaman-Judul.pdf
2.	2018_TA_TM_071001400165_Bab-1.pdf
3.	2018_TA_TM_071001400165_Bab-2.pdf
4.	2018_TA_TM_071001400165_Bab-3.pdf
5.	2018_TA_TM_071001400165_Bab-4.pdf
6.	2018_TA_TM_071001400165_Bab-5.pdf
7.	2018_TA_TM_071001400165_Daftar-Pustaka.pdf	2
8.	2018_TA_TM_071001400165_Lampiran.pdf

Abstrak
Abstract

S alah satu cara untuk menentukan karakteristik reservoir yaitu denganmelakukan analisis pressure transient, dimana yang dilakukan pada sumur X-15 iniadalah analisa pressure build up. PBU Test berguna untuk mendapatkan informasimengenai karakteristik reservoir,seperti permeabilitas,kerusakan formasi,danproperties sumur lainnya. Selain itu untuk mengetahui kemampuan sumurberproduksi dilakukan deliverability test. Uji deliverability yang dilakukan padasumur X-15 adalah Modified Isochronal Test. Kedua uji sumur ini dilakukanmenggunakan Software Ecrin 4.20. Pada sumur X-15 ini terdapat masalah partialpenetration yang kemudian dilakukan reperforasi. Pada analisa ini dilakukanperbandingan yaitu sebelum dilakukan reperforasi dan sesudah dilakukanreperforasi. Sumur ini merupakan sumur gas dengan batuannya karbonat.Pada analisa pressure derivative yang dilakukan sebelum reperforasidiperoleh well model Vertical-Limited Entry, reservoir model Two Porosity PSSdengan boundary infinite. Nilai skin yang diperoleh 8,64, permeabilitas 57,9 mDft,ketebalan perforasi 42,31 ft, Zw 25,74 ft, omega (Ï‰) 0,728 dan nilai lambda (Î») 1,02x 10-9. Dengan menggunakan metode horner pendekatan pseudo pressure secaramanual diperoleh nilai skin 8,755, permeabilitas 58,28 mD, dan FE 0,5514.Pada analisa Pressure Derivative di sumur X-15 setelah reperforasidiperoleh karakteristik dan sifat reservoir yaitu dengan reservoir model TwoPorosity PSS, dan Boundary model Infinite. Pada sumur X-15 diperoleh nilai skin-2,74 dengan permeabilitas 57,9 mD, kh 4750 mDft, tekanan reservoir awal2980,07 psi. Karakteristik yang ada pada model dual porosity ini adalah nilai omega(Ï‰) 0,511 dan nilai lambda (Î») 5,25 x 10-7. Pada analisa Horner diperoleh kh 4649,4mDft, permeabilitas 56,7 mD, skin -2,55 dan FE 1,292. Pada analisa ujideliverability ini diperoleh nilai AOFP dengan pendekatan pseudo pressuresebelum reperforasi adalah 47,406 MMSCF/D, sedangkan setelah reperforasidiperoleh nilai AOFP 64,43 MMSCF/D, dimana hasil ini diperoleh menggunakanSoftware Ecrin V4.02.

O ne way to determine the characteristics of the reservoir is to do a transientpressure analysis, which is done on the well X-15 is a pressure build up analysis.The PBU Test is useful for obtaining information on reservoir characteristics, suchas permeability, formation damage, and other well properties. In addition toknowing the ability of producing wells carried out deliverability test. Thedeliverability test performed on the X-15 well is Modified Isochronal Test. Bothtests were conducted using Ecrin 4.20 Software. In this X-15 well there is a partialpenetration problem which is then reperfored. In this analysis, the comparison isdone before reperforasi and after reperforasi. This well is a gas well with itscarbonate rock.In the pressure derivative analysis that was carried out before reperfationwas obtained well Vertical-Limited Entry model, reservoir of Two Porosity PSSmodel with infinite boundary. Skin values obtained were 8,64, permeability 57,9mDft, perforation thickness 42.31 ft, Zw 25.74 ft, omega (Ï‰) 0.728 and lambdavalue (Î») 1,02 x 10-9. By using the Horner method, the manual pseudo pressureapproach obtained a skin value of 8,755, permeability 58,28 mD, and FE 0,5514.In the Pressure Derivative analysis in the X-15 well after reperforation, thecharacteristics and properties of the reservoir are obtained, namely the reservoirwith Two Porosity PSS model, and Infinite Boundary model. At the well X-15obtained skin -2,74 with permeability of 57,9 mD, kh 4750 mDft, initial reservoirpressure of 2980,07 psi. The characteristics of this dual porosity model are theomega (Ï‰) value of 0.511 and the lambda value (Î») 5,25 x 10-7. In Horner's analysis,it is obtained 4649,4 mDft, permeability 56,7 mD, skin -2,55 and FE 1,292. In thisdeliverability test analysis obtained the AOFP value with the pseudo pressureapproach before reperforation was 47,406 MMSCF / D, while after reperforationwas obtained the AOFP value was 64,43 MMSCF / D, where these results wereobtained using Ecrin V4.02 Software.