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ITS » Undergraduate Theses » Fisika
Posted by astutiknq@its.ac.id at 29/03/2010 09:59:16  •  8659 Views


ANALISIS PETROFISIKA PADA KASUS RESERVOAR DENGAN KONTRAS RESISTIVITAS YANG RENDAH MENGGUNAKAN METODE MRIAN MAGNETIC RESONANCE IMAGING ANALYSIS DAN DMR DENSITY MAGNETIC RESONANCE STUDI KASUS SUMUR DNA

PETROPHYSICAL ANALYSIS AT LOW CONTRAST RESISTIVITY RESERVOIR USING MRIAN MAGNETIC RESONANCE IMAGING ANALYSIS AND DMR DENSITY MAGNETIC RESONANCE METHOD Study Case Well dNa

Author :
Irawan, Deni ( 1105100042 )




ABSTRAK

Analisis petrofisika pada sumur dNa relatif lebih sulit jika hanya menggunakan data log konvensional disebabkan sumur dNa memiliki kontras resistivitas yang rendah. Permasalahan yang timbul adalah dalam penentuan tipe fluida di dalam formasi. Teknologi NMR nuclear magnetic resonance mempunyai beberapa keunggulan jika dibandingkan dengan teknologi log konvensional. Keunggulan dari teknologi NMR adalah teknologi NMR sangat sensitif terhadap fluida dalam formasi dan tidak terpengaruh dengan adanya perubahan litologi pada formasi. Teknologi NMR sendiri masih mempunyai kelemahan dalam penetrasi kedalaman serta masih terpengaruh dengan adanya gas. Sehingga untuk mengetahui parameter-parameter petrofisika yang lebih baik diperlukan penggabungan dari data log konvensional dan log NMR. MRIAN merupakan metode penggabungan antara log resistivitas dan log NMR yang bertujuan untuk mendapatkan penetrasi kedalaman yang lebih dalam. sedangkan DMR merupakan metode penggabungan antara log densitas dan log NMR yang bertujuan untuk mengoreksi nilai porositas dari NMR pada zona gas. Dari hasil pengolahan data dan interpretasi menggunakan metode MRIAN dan DMR pada sumur dNa didapatkan tiga zona reservoar yang produktif dengan interval porositas 19 - 25 dan saturasi air 30 - 60.


ABSTRACT

Petrophysical analysis at well dNa is difficult if using conventional log only because it has low contrast resistivity reservoir. The problems raising are fluid identification of the formation. NMR nuclear magnetic resonance technology has more advantages than the conventional well logging. The advantages of NMR technology are its sensitivity of fluid present and not affected with the change of lithology in the formation. On the other side the disadvantages of NMR technology are its small depth of investigation and affected with gas present. Therefore to determine good physics parameters data from conventional log is combining with data with NMR log data. MRIAN method is a method that combine a resistivity log and NMR log the purpose is to obtaining greater depth of investigation. Whereas DMR method is a method that combine a density log data with NMR log data the purpose is correcting the NMR porosity at the gas zone and also to obtaining fluid saturation in the invaded zone. The result of using MRIAN method and DMR method is obtaining three productive reservoir zone at well dNa with interval porosity 19 - 25 and water saturation 30 - 60.



KeywordsAnalisa petrofisika; Kontras resistivitas rendah; Log NMR; MRIAN; DMR
 
Subject:  Geofisika
Contributor
  1. Dr. WIDYA UTAMA, DEA
  2. WITA ANDITA, S.T
Date Create: 29/03/2010
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-3100010038242
Collection ID: 3100010038242
Call Number: RSFi 550 Ira a


Source
Undergraduate Theses of Physics Department, RSFi 550 Ira a, 2009

Coverage
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Copyright @2009 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library




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  1.  ITS-Undergraduate-9024-1105100042-Abstract_id.pdf - 14 KB
  2.  ITS-Undergraduate-9024-1105100042-Abstract_en.pdf - 14 KB
  3.  ITS-Undergraduate-9024-1105100042-Conclusion.pdf - 12 KB




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