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We present a new method of regularization of seismic data using the finite offset common reflection source (FOCRS) traveltime approximation. This method fits curves of common reflection source to the reflection events and... more
Genetic algorithm is used to perform variable selection to determine the ranges of wavelengths in NIR spectral data suitable to be used as predictors in multivariate calibration model via partial least squares. The NIR spectral data... more
In May 2012, a series of medium-high intensity earthquakes struck a highly industrialized area of centralnorthern Italy and in particular the Emilia-Romagna region. As a consequence, there were 28 casualties, numerous injuries, and vast... more
The use of discrete wavelet based analysis, feature extraction, denoising, and compression methods have led to extremely interesting developments in the field of seismic data processing. Notwithstanding, discrete wavelets belong to a... more
The techniques of seismic surveying, especially reflection seismic, considerably varied during last year’s. The contribution to this variation mainly came from the oil industry, which has developed the geophysical methods for oil... more
Рассматриваются теоретические основы методов мультифокусирования сейсмических данных и практика их применения на различных территориях. Предложены новые методы: метод мультифокусирования Тейлора и двумерное сейсмостратиграфическое... more
The cross-calibration of different vintage data is an important prerequisite in attempting to determine the time-lapse seismic effects induced by hydrocarbon production in a reservoir. This paper reports the preprocessing and... more
Refraction seismic and geoelectric methods are usually applied for the delineation of near surface structures in environmental, engineering and hydrogeological investigations. When applied independently, these techniques yield... more
In this paper, we present a new method of normal move-out (NMO) correction that works on a trace by trace bases technique rather than the current conventional sample by sample semblance analysis. The method corrects the pre-stack seismic... more
Data mining and knowledge discovery in databases have been attracting a significant amount of research, industry, and media attention of late. There is an urgent need for a new generation of computational theories and tools to assist... more
In contrast to the use of marine seismic reflection techniques for reservoir-scale applications, where seismic inversion for quantitative sediment analysis is common, shallow-water, very-high-resolution seismic reflection data are seldom... more
The paper proposes the results of a research industry project concerning predictive maintenance process optimization, applied to a machine cutting polyurethane. A company producing cutting machines, has been provided with an online... more
Although Big Data is a trending buzzword in both academia and the industry, its meaning is still shrouded by much conceptual vagueness. The term is used to describe a wide range of concepts: from the technological ability to store,... more
Introducing and applying an appropriate strategy for reservoir modeling in strongly heterogeneous and fractured reservoirs is a controversial issue in reservoir engineering. Various integration approaches have been introduced to combine... more
3D model of pore pressure prediction becomes a critical tool as a platform for effective interpretation toward the drilling process. Inversion seismic velocity is crucial for modeling the seismic data into P-wave, S-wave, and density... more
PUSAT PENELITIAN DAN PENGEMBANGAN TEKNOLOGI MINYAK DAN GAS BUMI "LEMIGAS" JAKARTA PENGOLAHAN DATA SEISMIK 2D DARAT DI CEKUNGAN SUMATERA SELATAN DENGAN MENGGUNAKAN PERANGKAT LUNAK PROMAX LAPORAN PROGRAM PENGALAMAN LAPANGAN Oleh MUHAMMAD... more
There are many problems associated with the hydrocarbon exploration processes so that the trend of seismic data processing is developing with the needs of oil/gas exploration and exploitation. Innovations in geophysical data processing... more
Praktik Kerja Magang dilaksanakan di Pusat Penelitian dan Pengembangan Geologi Kelautan pada tanggal 18 Juli hingga 31 Agustus 2016 selama kurang lebih 30 Hari Orang Kerja (HOK). Kegiatan pembelajaran dan pengolahan data seismik sebagian... more
The study is focused on the formation evaluation of Srikail gas field located in western part of folded belt of the Bengal Basin which can be used to improve reservoir characterization. Digital version of wireline log data is used in this... more
An effective technique to process and analyse large amounts of data is achieved through using the MapReduce framework. It is a programming model which is used to rapidly process vast amount of data in parallel and distributed mode... more
Telah dilakukan pengolahan data multikomponen seismik pada komponen radial untuk menganalisis kualitas data yang dihasilkan oleh S-Wave. Data seismik yang digunakan pada penelitian ini adalah data seismik multi komponen pada Zona Transisi... more
This is a brief description of the mathematical basis of the programs supolar and supofilt and the set of values of the calculated time sequences. Both programs have been developed as part of my diploma thesis in geophysics and are now... more
To remove some of the ambiguities in a heterogeneous oil reservoir, a three dimensional model of the reservoir would be constructed by application of newly introduced methods. The aim of this study is to define an accurate and efficient... more
(In English) The strong and felt earthquake with magnitude 6.5 occurred in 119 km to the southeast of Cilacap Regency, Central Java Province at a depth of 48 km. The earthquake centered on the sea at coordinates 8.48o latitude and 109.17o... more
We have used on- and offshore seismic reflection profiles to determine the extension of a historic landslide at depth and toward the sea. The subsurface landslide structure was delineated by using four separate data sets produced by the... more
S U M M A R Y In this paper, we study 3-D multiparameter full waveform inversion (FWI) in viscoelastic media based on the generalized Maxwell/Zener body including arbitrary number of attenu-ation mechanisms. We present a frequency-domain... more
The 2D and 3D seismic data are interpreted to evaluate the subsurface geologic structures in the Abu Rudeis-Sidri area that occupy the northern central part of the Gulf of Suez. The structural configurations, as well as the tectonic... more
The paper focuses on the evaluation and mapping of the frequency-dependent spectrum based seismic intensity, also called instrumental intensity. This index, calculated basically from the integration of the square values of spectral... more
The method based on separation of the earth & structure. In this method applied force will be decreased during earthquake due to separation of structure & earth by making base of structure or floors flexible and applying energy dampers... more
This paper presents a tutorial on Kalman filtering that is designed for instruction to undergraduate students. The idea behind this work is that undergraduate students do not have much of the statistical and theoretical background... more
The development of carbonate reservoir characterization has evolved rapidly. One newmethod that is currently in use is Common Contour Binning (CCB). CCB is new technology whointroduced by using the concept of amplitudestacking of seismic... more
Diffractions encode subwavelength information and superior illumination but are weak in amplitude and strongly interfere with the more dominant reflected wavefield. Accordingly, the successful separation of diffractions in geophysical... more