DETAIL KOLEKSI

Analisa pressure build up dan deliverability dari hasil drill stem test


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 Sulistyanto

Subyek : Well test;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 2297.33
2. 2018_TA_TM_071001400176_Bab-1.pdf 559.02
3. 2018_TA_TM_071001400176_Bab-2.pdf 1225.21
4. 2018_TA_TM_071001400176_Bab-3.pdf 1401.39
5. 2018_TA_TM_071001400176_Bab-4.pdf 1129.14
6. 2018_TA_TM_071001400176_Bab-5.pdf 552.26
7. 2018_TA_TM_071001400176_Daftar-Pustaka.pdf 546.45
8. 2018_TA_TM_071001400176_Lampiran.pdf 963.96

S Salah satu tujuan dari pengujian sumur yaitu untuk menganalisis parameter –parameter reservoir seperti tekanan awal reservoir, permeabilitas, kerusakanformasi,batas reservoir, serta kemampuan produksi dari suatu lapisan atau formasi.Sumur CDW-2 merupakan sumur baru dimana pengeboran dilakukan pertama kalipada tahun 2016. Sumur CDW-2 terletak pada lapangan Cendrawasih di CekunganJawa Timur dimana jenis reservoirnya adalah gas dengan jenis batuan sandstone.Untuk mengetahui karakteristik reservoir seperti permeabilitas, skin, tekananreservoir, batas reservoir (boundary), jenis fluida hidrokarbon (air, minyak ataugas), dan potensi lapisan produktif. maka pada sumur CDW-2 ini dilakukan DrillStem Test (DST).Dari data DST dianalisa uji PBU dan uji deliverabilitas. Uji PBU dianalisadengan Metode Horner dan Metode Pressure Derivative, sedangkan ujiDeliverabilitas dianalisa dengan Metode Konvensional dengan pendekatanPressure Square. Kedua uji tekanan tersebut dianalisa dengan menggunakanperangkat lunak dan manual.Pada analisa Pressure Derivative di sumur CDW-2, diperoleh karakteristikdan sifat reservoir yaitu dengan reservoir model Homogenous, dan Boundarymodel Intersecting Pi/N dengan nilai skin sebesar 3.66, permeabilitas 310 mD,tekanan reservoir awal 1276.11 psia. Lalu pada analisis Horner menggunakansoftware didapatkan nilai transmisibilitas sebesar 6100 mD.ft, permeabilitas 310mD dan faktor skin 3,68, sedangkan analisis Horner menggunakan perhitunganmanual didapatkan transmisibilitas sebesar 6230,88, permeabilitas 316,53 mD, dannilai faktor skin 3,22. Pada analisa uji deliverability ini diperoleh nilai AOFP(Absolute Open Flow) 72,94 MMSCF/D. Selain itu pada penelitian ini jugadilakukan sensitivitas nilai Pwh terhadap kurva IPR dimana laju alir dari beberapanilai 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 suchas reservoir initial pressure, permeability, formation damage, reservoir boundary,and production capability of a layer or formation. The CDW-2 well is a new wellwhere drilling was carried out for the first time in 2016. The CDW-2 well is locatedon the Cendrawasih field in the East Java Basin where the reservoir type is asandstone 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 iscarried out Drill Stem Test (DST).From the DST data PBU test is analyzed and deliverability tests. PBU testwas analyzed by the Horner Method and Pressure Derivative Method, while theDeliverability test was analyzed with a Conventional Method with a PressureSquare approach. Both pressure tests are analyzed using software and manuals.In the Pressure Derivative analysis at CDW-2 well, the characteristics andproperties of the reservoir are obtained by the Homogenous reservoir model, andthe 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 usingsoftware obtained transmissibility value of 6100 mD.ft, permeability of 310 mD andskin factor of 3.68, while Horner's analysis using manual calculation obtainedtransmissibility of 6230.88, permeability of 316.53 mD, and skin factor 3, 22. Inthis 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 theIPR 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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