MULTI-POLARIZATION FOR ANALYSIS OF GEOLOGICAL STRUCTURES AS FORMATION OF HYDROCARBON TRAPS CONTROLLER IN EAST JAVA BASIN

The decline in oil reserves and the increasing demand for oil and gas energy led to the search for new reserves. The geological structure pattern used to know the pattern of distribution and formation of hydrocarbons traps in the East Java Basin is one of the important information that can be extracted through remote sensing data of multi-polarization system. The multi-polarization system of this study merged the \ Alos Palsar imagery with HH and HV polarization, and Sentinel Image polarized VV and VH. Processing both image data through calibration, multilook, speckle fi ltering, geometric correction and mosaic. Filtered imagery is composite and sharpening. The fi ltering technique use Lee 5x5 kernel fi lter and then continue with 5x5 median fi lter. The results of multi-polarization system image interpretation can be identifi ed by fold, thrust faults, normal faults, strike-slip faults, bedding, and closure structure. In the formation research area the structure lasted two periods, with the main emphasis N-S in the order of 1 and the main direction of the SW-NE direction in the order-2. The hydrocarbon traps and exploration targets can be distinguished in three zones (Zone A, Zone B, and Zone C). Closure in Zone A includes closures 3, 4, 5, 7, 8, 9, 10, 11, 22, 23, 24, 25, 26, 27, 28, 29, 30. Closure in Zone B includes closures 1, 2, 6, 12, 13, 14, 15, 16, 17, 31, 32. Closure on Zone C includes closure18, 19, 20, 21.

Download Full-text

Structural Geology Analysis In A Disaster-Prone Of Slope Failure, Merangin Village, Kuok District, Kampar Regency, Riau Province

Journal of Geoscience Engineering Environment and Technology ◽

10.24273/jgeet.2017.2.4.691 ◽

2017 ◽

Vol 2 (4) ◽

pp. 249 ◽

Cited By ~ 1

Author(s):

Yuniarti Yuskar ◽

Dewandra Bagus Eka Putra ◽

Adi Suryadi ◽

Tiggi Choanji ◽

Catur Cahyaningsih

Keyword(s):

Structural Geology ◽

Slope Failure ◽

Good Condition ◽

Research Area ◽

Geological Structure ◽

Normal Faults ◽

Reverse Fault ◽

Weak Zone ◽

West Sumatra ◽

National Road

The geological disaster of landslide has occurred in Merangin Village, Kuok Subdistrict, Kampar Regency, Riau Province which located exactly in the national road of Riau - West Sumatra at Km 91. Based on the occurrence of landslide, this research was conducted to study geological structure and engineering geology to determine the main factors causing landslides. Based on measurement of the structural geology found on research area, there were fractures, faults and fold rocks which having trend of stress N 2380 E, plunge 60, trending NE-SW direction. Several faults that found was normal faults directing N 2000 E with dip 200 trending from northeast-southwest and reverse fault impinging N 550 E with dip 550, pitch 200 trending to the northeast. Fold structures showing azimuth N 2010 E trending southeast-northwest. From geological engineering analysis, the results of scan line at 6 sites that have RQD value ranges 9.4% - 78.7 % with discontinuity spacing 4 - 20 cm. So, It can be concluded that the formed structure was influenced by the extensive northeast-southwest tectonic phase, then continued through north-south tectonic phase, and ended by a tectonic period with directing from northeast-southwest. Rock Mass Rating classification showing value 62 – 76, Which also resulted that rocks in the study area have weathered on the outside but still in good condition (good rock). However, This condition of structure has caused the formation rocks producing weak zone that became one cause of the occurrence of landslides.

Download Full-text

The Use of Spot-HRV Data for the Mapping of the Land Cover (applied upon East-Mono, Central Togo)

Afrika Focus ◽

10.21825/af.v7i1.6123 ◽

1991 ◽

Vol 7 (1) ◽

Author(s):

Beata Maria De Vliegher

Keyword(s):

Remote Sensing ◽

Land Use ◽

Land Cover ◽

Image Interpretation ◽

Remote Sensing Data ◽

Image Data ◽

Visual Image ◽

Data Set ◽

Land Cover Map ◽

Colour Composite

The mapping of the land use in a tropical wet and dry area (East-Mono, Central Togo) is made using remote sensing data, recorded by the satellite SPOT. The negative, multispectral image data set has been transferred into positives by photographical means and afterwards enhanced using the diazo technique. The combination of the different diazo coloured images resulted in a false colour composite, being the basic document for the visual image interpretation. The image analysis, based upon differences in colour and texture, resulted in a photomorphic unit map. The use of a decision tree including the various image characteristics allowed the conversion of the photomorphic unit map into a land cover map. For this, six main land cover types could be differentiated resulting in 16 different classes of the final map. KEY WORDS :Remote sensing, SPOT, Multispectral view, Visual image interpre- tation, Mapping, Vegetation, Land use, Togo.

Download Full-text

GEOLOGICAL STUDIES OF OIL AND GAS FIELDS IN THE EAST ARAL SEDIMENTARY BASIN

10.34708/gstou.conf..2021.82.70.010 ◽

2021 ◽

Author(s):

С.К. Курбаниязов

Keyword(s):

Oil And Gas ◽

Sedimentary Basin ◽

Raw Materials ◽

Sediment Accumulation ◽

Research Area ◽

Seismic Exploration ◽

Hydrocarbon Traps ◽

Oil And Gas Fields ◽

Detailed Search ◽

Gas Potential

Объектом исследований являлись верхнепалеозойские, мезозойские и кайнозойские отложения, слагающие разрез в Восточно-Аральском осадочном бассейне, в связи с перспективами выявления месторождений нефти и газа. Обобщены и систематизированы сведения по стратиграфии, литологии, тектонике и нефтегазоносности района исследований. Изучен вещественный состав, палеогеографические, палеотектонические и геодинамические условия накопления осадков данных стратиграфических уровней, установлена их фациальная принадлежность. Составлены литолог-стратиграфические колонки скважин и проведена корреляция стратиграфических подразделений разрезов. Уточнена история геологического развития региона. Выявлены потенциальные коллектора и покрышки. Определены стратиграфические горизонты, благоприятные для формирования залежей углеводородного сырья. Обоснованы наиболее перспективные типы ловушек углеводородного сырья по стратиграфическим уровням и выявлена зональность их распространения. Дана оценка перспектив района на выявление залежей нефти и газа. Выделены информативные и качественные признаки (критерии) нефтегазоносности. Обоснованы площади и конкретные структуры для постановки детальных поисковых работ на выявление залежей нефти и газа. Рассчитана оценкапотенциальных ресурсов углеводородного сырья. Даны рекомендации на проведение первоочередных сейсморазведочных и буровых работ. The object of research was the Upper Paleozoic, Mesozoic and Cenozoic sediments composing the section in the East Aral sedimentary basin, in connection with the prospects for identifying oil and gas deposits. The data on stratigraphy, lithology, tectonics, and oil and gas potential of the research area are summarized and systematized. The material composition, paleogeographic, paleotectonic, and geodynamic conditions of sediment accumulation at these stratigraphic levels were studied, and their facies affiliation was established. The lithological and stratigraphic columns of the wells were compiled and the stratigraphic divisions of the sections were correlated. Updated the history of the geological development of the region. Potential collectors and tires have been identified. The stratigraphic horizons favorable for the formation of hydrocarbon deposits are determined. The most promising types of hydrocarbon traps are justified by stratigraphic levels and the zoning of their distribution is revealed. The assessment of the prospects of the area for the identification of oil and gas deposits is given. Informative and qualitative signs (criteria) of oil and gas potential are identified. The areas and specific structures for setting up detailed search operations to identify oil and gas deposits are justified. The estimation of potential resources of hydrocarbon raw materials is calculated. Recommendations for conducting priority seismic exploration and drilling operations are given.

Download Full-text

Tectonic-structural analysis of deposits in sediments of contact between sedimentary cover and basement

Oil and Gas Studies ◽

10.31660/0445-0108-2020-3-8-19 ◽

2020 ◽

pp. 8-19

Author(s):

E. S. Milei ◽

S. R. Bembel

Keyword(s):

Oil And Gas ◽

Pannonian Basin ◽

Sedimentary Cover ◽

Geological Structure ◽

Southeastern Part ◽

Hydrocarbon Traps ◽

Deep Faults ◽

Adjacent Structures ◽

Wide Range ◽

Characteristic Features

The article is devoted to a comprehensive analysis of the geological structure of a complex oil reservoir located in the southeastern part of the Pannonian basin. The concept of the hydrocarbon traps formation is based on the connection with the deep processes of oil and gas formation and phenomena, which lead to the formation of cracks, faults, local positive structures in the interval from the foundation to the upper part of the sedimentary cover. The article shows the significance of deep faults in the basement during the formation of sedimentary cover structures. These processes result in a wide range of oil and gas potential of the Pannonian basin deposits. In studying the specifics of tectonic movements and the features of gravitational deposits (conglobreccia), a tectono-sedimentary approach has been developed that can reduce a number of methodological difficulties in creating geological models and concepts. Recommendations are given on the additional study of adjacent structures in order to detect hydrocarbon deposits on the slopes with protrusions of the crystalline basement. Characteristic features of the geological structure are the local volume of the identified oil and gas deposits, small foci of increased productivity and improved filtration properties of reservoirs. Such features of the uneven distribution of sites of different productivity have a significant impact on the success of prospecting and exploration, the effectiveness of development of oil and gas deposits.

Download Full-text

HORIZONTAL ACCURACY ASSESSMENT OF GOOGLE EARTH DATA OVER TYPICAL REGIONS OF AUSTRALIA USING WORLDVIEW

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xliii-b3-2021-763-2021 ◽

2021 ◽

Vol XLIII-B3-2021 ◽

pp. 763-768

Author(s):

J. Guo ◽

H. J. Tu ◽

H. Li ◽

Y. Zhao ◽

J. Zhou

Keyword(s):

Remote Sensing ◽

Reference Data ◽

Accuracy Assessment ◽

Remote Sensing Data ◽

Image Data ◽

Research Area ◽

Google Earth ◽

Accuracy Evaluation ◽

Australian Continent ◽

Assessment Results

Abstract. Since the release of Google Earth image data, it has been the most widely used remote sensing data worldwide, and its accuracy evaluation has also been the focus of historical research. However, the researchers found that Google Earth's image accuracy assessment results have obvious regional characteristics. This article uses the Australian continent as the research area and WorldView-2 remote sensing images as reference data to study the accuracy evaluation results of Google Earth data. The research shows that the overall accuracy of the assessment area in Australia is better. The areas with the best overall accuracy appear in the western coastal areas, with an accuracy range of 0.7–1.4; the accuracy assessment results in the central desert area are also better, with the accuracy range 1.4–2.2, and the areas with the worst accuracy appear in the western mountains and hills of 14.5 and 17.1.

Download Full-text

The Use of Spot-Hrv Data for the Mapping of the Land Cover (Applied upon East-Mono, Central Togo)

Afrika Focus ◽

10.1163/2031356x-00701003 ◽

1991 ◽

Vol 7 (1) ◽

pp. 15-48

Author(s):

Beata Maria De Vliegher

Keyword(s):

Land Cover ◽

Image Interpretation ◽

Remote Sensing Data ◽

Image Data ◽

Visual Image ◽

False Colour Composite ◽

Data Set ◽

Image Characteristics ◽

Land Cover Map ◽

Colour Composite

Download Full-text

Multi-Source and Multi-Temporal Image Fusion on Hypercomplex Bases

Remote Sensing ◽

10.3390/rs12060943 ◽

2020 ◽

Vol 12 (6) ◽

pp. 943

Author(s):

Andreas Schmitt ◽

Anna Wendleder ◽

Rüdiger Kleynmans ◽

Maximilian Hell ◽

Achim Roth ◽

...

Keyword(s):

Image Fusion ◽

Optical Sensors ◽

Remote Sensing Data ◽

Image Data ◽

Machine Learning Algorithms ◽

Alos Palsar ◽

Data Set ◽

Multi Temporal ◽

The Stability ◽

Sentinel 2

This article spanned a new, consistent framework for production, archiving, and provision of analysis ready data (ARD) from multi-source and multi-temporal satellite acquisitions and an subsequent image fusion. The core of the image fusion was an orthogonal transform of the reflectance channels from optical sensors on hypercomplex bases delivered in Kennaugh-like elements, which are well-known from polarimetric radar. In this way, SAR and Optics could be fused to one image data set sharing the characteristics of both: the sharpness of Optics and the texture of SAR. The special properties of Kennaugh elements regarding their scaling—linear, logarithmic, normalized—applied likewise to the new elements and guaranteed their robustness towards noise, radiometric sub-sampling, and therewith data compression. This study combined Sentinel-1 and Sentinel-2 on an Octonion basis as well as Sentinel-2 and ALOS-PALSAR-2 on a Sedenion basis. The validation using signatures of typical land cover classes showed that the efficient archiving in 4 bit images still guaranteed an accuracy over 90% in the class assignment. Due to the stability of the resulting class signatures, the fuzziness to be caught by Machine Learning Algorithms was minimized at the same time. Thus, this methodology was predestined to act as new standard for ARD remote sensing data with an subsequent image fusion processed in so-called data cubes.

Download Full-text

Characteristics of Facies Associations, Ichnofacies and Microfossils for Depositional Environment Interpretation of The Clastic Pulau Balang Formation, Samarinda

Proc. Indon. Petrol. Assoc., Digital Technical Conference, 2020 ◽

10.29118/ipa20-sg-12 ◽

2020 ◽

Author(s):

B. Andika

Keyword(s):

Depositional Environment ◽

Oil And Gas ◽

Facies Analysis ◽

Research Area ◽

Geological Structure ◽

Depositional Environments ◽

Geological Mapping ◽

Intertidal Flat ◽

Facies Association ◽

Facies Associations

The Kutai Basin contains prolific reserves of oil and gas. The study of depositional environments is one of the goals of oil and gas exploration. The location of this research is situated in the Tanah Merah area, Samarinda. The objective of this research was to analyse outcrops of the Pulau Balang Formation exposed in the Tanah Merah area to determine the depositional environment. Site specific studies were conducted at 3 localities in this area; TM1, TM2 and TM3. This study combines geological mapping, measured sections, facies analysis, petrography, ichnofacies analysis and microfossil analysis. Geological mapping was carried out to determine the distribution of rock units and geological structures. Measured sections were used for facies analysis and the identification of sedimentary structures and ichnofacies. Petrography was carried out to determine the mineral content of rocks and microfossil analysis for palaeobathymetric environmental analysis. The geological structure of the study area comprises a NE-SW trending anticline and syncline and a left lateral strike-slip fault with E-W direction. The study area is entirely within the Middle Miocene age Pulau Balang Formation and can be divided into three facies associations. The TM1 facies association comprises strata interpreted to be deposited in a supratidal marsh and intertidal flat environment. The TM2 facies association comprises strata interpreted to be deposited in a subtidal, intertidal, and supratidal environment. The TM3 facies association comprises strata interpreted to be deposited in a shoreface environment. The petrography of the study area indicates that rock units predominantly comprise quartz wacke and lithic wacke. Two ichnofacies were identified in the research area 2, namely the Skolithos ichnofacies and the Skolithos-Cruziana ichnofacies and contain ichnogenera namely Ophiomorpha, Skolithos, Planolites, Thalassinoides, Paaleophycus. Microfossil analysis found benthonic foraminifera species including Nodosaria lamellala, N. radicula, Vaginulinopsis tricarinata, Lagena costata, Striatissima vaginulina, Bulimina lappa, Planularia auris, Quinqueloculina seminulum, Bolivina punctata and Lahena laevis. Based on the presence of these microfossils and ichnofacies, it is interpreted that the research area was deposited in a neritic-bathyal environment.

Download Full-text

STUDI IDENTIFIKASI PERANGKAP HIDROKARBON PALEOGEN - NEOGEN DI PERAIRAN WOKAM ARU UTARA, PAPUA BARAT: DATA UTAMA HASIL SURVEI GEOMARIN III

JURNAL GEOLOGI KELAUTAN ◽

10.32693/jgk.19.1.2021.694 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

Priatin Hadi Wijaya ◽

Deny Setiady ◽

Jusfarida Jusfarida ◽

R. Wibowo

Keyword(s):

Oil And Gas ◽

Geological Structure ◽

Passive Margin ◽

Normal Faults ◽

Seismic Structure ◽

Seismic Section ◽

Half Graben ◽

Main Fault ◽

Survey Results ◽

Papua Barat

ABSTRAKPerairan Wokam Aru Utara, Papua Barat merupakan bagian tepi utara passive margin Mesozoik Arafura – Australia. Hasil survei dengan KR. Geomarin III di perairan Wokam 2014 diperoleh lintasan seismik Multi Kanal 1.182 km, dan pemeruman batimetri/sub bottom profiles (SBP) 1.510 km. Metode dilakukan interpretasi penampang seismik hasil survei, pengikatan sumur pemboran dan seismik, analisis petrofisika dan pemetaaan geologi bawah permukaan. Pada penampang seismik telah dilakukan interpretasi aspek struktur geologi dan perlapisan sedimen yang sebelumnya telah diikat dengan data sumur ASA-1X, ASM-1X dan ASB-1X untuk tiga horizon yaitu Top Neogen, Top Paleogen dan Base PaleogenPeta bawah permukaan Paleogen – Neogen menunjukan beberapa klosur yang berpotensi di bagian batas paparan dengan palung Aru serta bagian barat. Pada bagian Tenggara terdapat kenampakan onlapping sedimentasi Tipe struktural yang berkembang sebagai perangkap secara dominan berupa graben – half graben dan tilted faul. Onlaping sedimentasi yang mebaji juga dapat berpotensi.Struktur geologi pada area penelitian secara umum dikontrol oleh sesar utama Zona Sesar Palung Aru Utara di tepian paparan sampai lereng, mengarah utara - timur laut ke selatan - barat daya. Struktur ikutan yaitu sesar-sesar normal mengarah utara - timur laut ke selatan - barat daya di paparan sebelah timur zonar sesar utama.Studi awal potensi migas ini teridentifikasi empat lokasi potensi perangkap hidrokarbon dari umur Paleogen - Neogen, yaitu satu lokasi dari Peta Base Paleogen, dua lokasi Top Paleogen dan satu lokasi Top Neogen. kata kunci: Wokam, Aru, migas, seismik, struktur, interpretasi, jebakan, Geomarin III ABSTRACTThe waters of Wokam North Aru, West Papua are part of the northern edge of the Mesozoic passive margin of Arafura - Australia. Survey results with KR. Geomarin III in the waters of Wokam 2014 obtained a multi-channel seismic trajectory of 1,182 km, and bathymarism/sub bottom profiles (SBP) 1,510 km. The method is to interpret the seismic cross-section of the survey results, tie drilling and seismic wells, petrophysical analysis and mapping the subsurface geology. In the seismic section, an interpretation of the structural aspects of the geology and sediment layers has been carried out previously tied to data from the ASA-1X, ASM-1X and ASB-1X wells for three horizons, namely Top Neogen, Top Paleogene and Base Paleogene.The subsurface map of the Paleogene - Neogeneous surface shows several potential closures in the exposure boundary with the Aru Trench as well as the western part. In the Southeast, there is the appearance of sedimentation onlapping. Structural types that develop as traps are predominantly graben - half graben and tilted fault. The onlaping sedimentation also has potential. The geological structure in the study area is generally controlled by the main fault of the North Aru Trench Zone on the edge of the exposure to the slope, heading north - northeast to south - southwest. Follow-up structures are normal faults pointing north - northeast to south - southwest on the eastern exposure of the main fault zone.This preliminary study of oil and gas potential identified four potential locations for hydrocarbon traps from the Paleogene - Neogene age, namely one location from the Paleogene Base Map, two Top Paleogene locations and one Top Neogen location.Keyword: Wokam, Aru, oil and gas, seismic, structure, interpretation, traps, Geomarin III

Download Full-text

Mapping and Statistical Analysis of NO2 Concentration for Local Government Air Quality Regulation

Sustainability ◽

10.3390/su11143809 ◽

2019 ◽

Vol 11 (14) ◽

pp. 3809 ◽

Cited By ~ 2

Author(s):

Jieun Ryu ◽

Chan Park ◽

Seong Woo Jeon

Keyword(s):

Air Pollutants ◽

Satellite Image ◽

Remote Sensing Data ◽

Image Data ◽

Observation Data ◽

Concentration Data ◽

Administrative Unit ◽

Satellite Image Data ◽

Increasing Demand ◽

Administrative Units

With the growing interest in healthy living worldwide, there has been an increasing demand for more accurate measurements of the concentrations of air pollutants such as NO2. In particular, analyzing the characteristics and sources of air pollutants by region could improve the effectiveness of environmental policies applied in accordance with the environmental characteristics of individual regions. In this study, a detailed nationwide NO2 concentration map was generated using the cokriging interpolation technique, which integrates ground observations and satellite image data. The root-mean-square standardized (RMSS) error for this technique was close to 1, which indicates high accuracy. Using spatially interpolated NO2 concentration data, an administrative unit map was generated. When comparing the data for four NO2 data sources (observation data, satellite image data, detailed national data interpolated using cokriging, and NO2 concentrations averaged by an administrative unit based on the interpolated NO2 concentration data), the average concentrations were highest for remote sensing data. Land use regression (LUR) models of urban and non-urban regions were then developed to analyze the characteristics of the NO2 concentration by region using NO2 concentrations for the administrative units.

Download Full-text