Formation Analysis of Well ‹‹ x ›› in Order to Find the Prospective Gas and Oil in East of Kalimantan Area by Using Geological and Geophysical Methods

AlHdad, ZouhirSaadAmhmed (2013) Formation Analysis of Well ‹‹ x ›› in Order to Find the Prospective Gas and Oil in East of Kalimantan Area by Using Geological and Geophysical Methods. Magister thesis, Universitas Brawijaya.

Abstract

Evaluasi formasi dilakukan untuk memastikan kemampuan lubang bor dalam memproduksi petroleum dan sekaligus mengevaluasi persoalan seperti batas bawah porosity, permeability dan batas atas kejenuhan air yang menghasilkan produksi menguntungkan dari sebuah formasi tertentu atau zona bayar, baik di area geograik tertentu, atau di iklim ekonomi tertentu, agar bisa ditemukan minyak dan gas. Studi dilakukan untuk mendapatkan pengetahuan tentang core dan sampel potong. Tanpa mengetahui core dan sampel potong, tidak bisa didapatkan sumber minyak dan kita harus mengetahui komponen fisik batu dan fluida yang terkandung di dalam core dan sampel potong. Manfaat informasi ini tergantung cara menghitung wireline-nya, yang meliputi mineralogy, kerogen, kepadatan grain, porosity, dan kejenuhan gas yang nantinya dicocokkan dengan data core. TOC (Total Organic Carbon) dihitung dari log dengan mempertimbangkan korelasi bulk-density-log untuk hitungan serapan-gas. Porosity bebas-gas interpretasi-log tidak cocok dengan data core ketika menggunakan eksponen sementasi Archie sebesar 2, mungkin karena porosity terisi-gas di core mengukur gas bebas bersama dengan jumlah gas yang terserap. Dalam Area “X” di Indonesia, pengeboran dilaksanakan dengan stringer 0,5-2,0 m ke dalam lapisan limestone yang keras. Dalam terapan sama sebelumnya, rate of penetration (RP) dipengaruhi oleh beberapa desain PDC. Bagian lubang dimasuki peralatan logging wireline Halliburton. Ran # 1: GR/RDT/MRILAB, dengan hasil BHST sebesar 111,60C. Ada 38 tes pressure RDT. Hasilnya adalah 26 baik, 3 terekstrapolasi, dan 9 rapat. EMW Maksimum adalah 1,01 SG pada 2919,3 mWL/2104,3 mTVD dan EMW minimum sebesar 0,82 SG pada 2999,8 mWL/2166,1 mTVD. Upaya melibatkan 2 point analisis fluida MRI Lab. Hasilnya adalah 1 minyak dan 1 air. Terakhir, total operasi di blok Mahakam menghasilkan 2,6 milyar cubic feet per hari produksi gas. Output tetap terjaga di level ini setidaknya di tahun-tahun awal dekade selanjutnya karena produksi “X”. Blok Mahakam menjadi produsen minyak dan kondensat tingkat-atas, dengan output hampir 90 ribu barrel per hari. Total operasi area “X” adalah 47,9 interest, bersama dengan INPEX (47,9 %) dan Pertamina (4,2 %).

English Abstract

Formation evaluation is used to determine the ability of a borehole to produce petroleum and to evaluation problem is a matter of the lower limits for porosity, permeability and upper limits for water saturation that permit profitable production from a particular formation or pay zone; in a particular geographic area; in a particular economic climate in order to find gas and oil, I have made this study to obtain the knowlegment of cores and cutting samples. Whithout knowing of cores and the cutting sample, it will not be obtain oil source and to know the physical properties of rocks and the fluids contained within them and all these information depend on how to calculate wireline- log of mineralogy, kerogen, grain density, porosity, and gas saturation that agree with core data and calculate TOC(Total organic carbon) from logs, with a bulk-density-log correlation for the adsorbed-gas-inplace calculation. The log-interpretation free-gas porosity would not agree with the core data when using an archie cementation exponent of 2, probably because the core`s gas-filled porosity measures free gas along with some amount of adsorbed gas. In the ‘`x`` Field in Indonesia, drill through 0.5-2.0 m stringers of moderately hard to hard limestone effectively. In previous similar applications, rate of penetration (ROP) rate of pentration suffered with multiple PDC designs. The hole section was logged by Halliburton wireline logging tool. Ran #1: GR/RDT/MRILAB , with result BHST 111.6° C. Attempted 38 pressure test of RDT. Result: 26 good, 3 extrapolated and 9 tight. Maximum EMW 1.01 SG at 2919.3 mWL/2104.3 mTVD and minimum EMW 0.82 SG at 2999.8 mWL/2166.1 mTVD. Attempted 2 point of fluid analysis MRI Lab tools. Result: 1 oil and 1 water. Finally TOTAL operates nearly 2.6 billion cubic feet per day of gas production from the Mahakam block. Output will be maintained at this level at least through the early years of the next decade thanks to ‘`x`` production. The Mahakam block is also a top-tier oil and condensate producer, with output of nearly 90,000 barrels per day. Total operates the ‘`x`` fields with a 47.9% interest, alongside INPEX (47.9%) and Pertamina (4.2%).

Item Type: Thesis (Magister)
Identification Number: TES/555.983/ALH/f/041304858
Subjects: 500 Natural sciences and mathematics > 555 Earth sciences of Asia
Divisions: S2/S3 > Magister Fisika, Fakultas MIPA
Depositing User: Endro Setyobudi
Date Deposited: 21 Jun 2013 13:50
Last Modified: 21 Jun 2013 13:50
URI: http://repository.ub.ac.id/id/eprint/157640
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