DETAIL KOLEKSI

Analisa pressure build up dan deliverability dari hasil drill stem test sumur CWD-2


Oleh : Ayu Khairunnisa

Info Katalog

Nomor Panggil : 954/TP/2018

Penerbit : FTKE - Usakti

Kota Terbit : Jakarta

Tahun Terbit : 2018

Pembimbing 1 : Mulia Ginting

Pembimbing 2 : Djoko Sulityanto

Subyek : Drilling mud - Oil technic;Pressure build up

Kata Kunci : well test, deliverability, nodal analysis


File Repositori
No. Nama File Ukuran (KB) Status
1. 2018_TA_TM_071001400176_Halaman-Judul.pdf 2259.77
2. 2018_TA_TM_071001400176_Bab-1.pdf 702
3. 2018_TA_TM_071001400176_Bab-2.pdf 1553.21
4. 2018_TA_TM_071001400176_Bab-3.pdf 1770.26
5. 2018_TA_TM_071001400176_Bab-4.pdf 1401.39
6. 2018_TA_TM_071001400176_Bab-5.pdf 678.18
7. 2018_TA_TM_071001400176_Daftar-Pustaka.pdf 674.8
8. 2018_TA_TM_071001400176_Lampiran.pdf 1078.22

S Salah satu tujuan dari pengujian sumur yaitu untuk menganalisis parameter – parameter reservoir seperti tekanan awal reservoir, permeabilitas, kerusakan formasi,batas reservoir, serta kemampuan produksi dari suatu lapisan atau formasi. Sumur CDW-2 merupakan sumur baru dimana pengeboran dilakukan pertama kali pada tahun 2016. Sumur CDW-2 terletak pada lapangan Cendrawasih di Cekungan Jawa Timur dimana jenis reservoirnya adalah gas dengan jenis batuan sandstone. Untuk mengetahui karakteristik reservoir seperti permeabilitas, skin, tekanan reservoir, batas reservoir (boundary), jenis fluida hidrokarbon (air, minyak atau gas), dan potensi lapisan produktif. maka pada sumur CDW-2 ini dilakukan Drill Stem Test (DST).Dari data DST dianalisa uji PBU dan uji deliverabilitas. Uji PBU dianalisa dengan Metode Horner dan Metode Pressure Derivative, sedangkan uji Deliverabilitas dianalisa dengan Metode Konvensional dengan pendekatan Pressure Square. Kedua uji tekanan tersebut dianalisa dengan menggunakan perangkat lunak dan manual.Pada analisa Pressure Derivative di sumur CDW-2, diperoleh karakteristik dan sifat reservoir yaitu dengan reservoir model Homogenous, dan Boundary model Intersecting Pi/N dengan nilai skin sebesar 3.66, permeabilitas 310 mD, tekanan reservoir awal 1276.11 psia. Lalu pada analisis Horner menggunakan software didapatkan nilai transmisibilitas sebesar 6100 mD.ft, permeabilitas 310 mD dan faktor skin 3,68, sedangkan analisis Horner menggunakan perhitungan manual didapatkan transmisibilitas sebesar 6230,88, permeabilitas 316,53 mD, dan nilai faktor skin 3,22. Pada analisa uji deliverability ini diperoleh nilai AOFP (Absolute Open Flow) 72,94 MMSCF/D. Selain itu pada penelitian ini juga dilakukan sensitivitas nilai Pwh terhadap kurva IPR dimana laju alir dari beberapa nilai Pwh yaitu 900, 1000, 1100, 1200 psia secara berurutan yaitu 11,581, 9,463, 6,630, dan 1,329 MMSCFD.

O One of the objectives of well testing is to analyze reservoir parameters such as reservoir initial pressure, permeability, formation damage, reservoir boundary, and production capability of a layer or formation. The CDW-2 well is a new well where drilling was carried out for the first time in 2016. The CDW-2 well is located on the Cendrawasih field in the East Java Basin where the reservoir type is a sandstone rock type. To find out reservoir characteristics such as permeability, skin, reservoir pressure, reservoir limit (boundary), type of hydrocarbon fluid (water, oil or gas), and the potential for productive layers. then the CDW-2 well is carried out Drill Stem Test (DST).From the DST data PBU test is analyzed and deliverability tests. PBU test was analyzed by the Horner Method and Pressure Derivative Method, while the Deliverability test was analyzed with a Conventional Method with a Pressure Square approach. Both pressure tests are analyzed using software and manuals.In the Pressure Derivative analysis at CDW-2 well, the characteristics and properties of the reservoir are obtained by the Homogenous reservoir model, and the Intersect Pi / N Boundary model with a skin value of 3.66, 310 mD permeability, the initial reservoir pressure 1276.11 psia. Then in the Horner analysis using software obtained transmissibility value of 6100 mD.ft, permeability of 310 mD and skin factor of 3.68, while Horner's analysis using manual calculation obtained transmissibility of 6230.88, permeability of 316.53 mD, and skin factor 3, 22. In this deliverability test analysis obtained the value of AOFP (Absolute Open Flow) 72.94 MMSCF / D. In addition, in this study the sensitivity of the Pwh value to the IPR curve was carried out where the flow rates of several Pwh values were 900, 1000, 1100, 1200 psia respectively, 11.581, 9.463, 6.630, and 1.329 MMSCFD.

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