The testing of Qp and QsQp equation in Kujung i Formation, East Java, Indonesia

A. Sadat, A. Haris, Haryono, G. A. Dharmawan

Research output: Contribution to journalConference articlepeer-review


Hydrocarbon-bearing reservoir shows attenuation on seismic section, but the use of attenuation in hydrocarbon exploration is less popular than other attributes. This is due to the sophisticated and advanced technology required to measure attenuation. Meanwhile, some studies were designed to estimate attenuation by formulating rock quality factor equations from a wire-line log, although others run on sandstone samples. Therefore, this study aims to estimate rock quality factors in carbonate rock of Kujung Formation using three different methods, discriminate hydrocarbon-bearing reservoir, and identifying the impact of carbonate facies. The results showed the P-wave quality factor method is sensitive to discriminate high gas saturation on facies A. Meanwhile, the QsQp ratio is sensitive to discriminate shale and carbonate. The SQp and SQs methods are sensitive to discriminate hydrocarbon-bearing reservoirs and less affected by carbonate facies. The novelty of this is to estimate the rock quality factor from various methods and identify the impact of facies in hydrocarbon identification, especially for carbonate reservoirs in Northeast Java Basin. Therefore, a new understanding of facies impact on rock quality factor contributes to choosing the best methods in discriminating pore-filling fluid identification.

Original languageEnglish
Article number012049
JournalIOP Conference Series: Earth and Environmental Science
Issue number1
Publication statusPublished - 25 Oct 2021
Event2021 International Conference on Geological Engineering and Geosciences, ICGoES 2021 - Yogyakarta, Virtual, Indonesia
Duration: 16 Mar 202118 Mar 2021


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