scholarly journals Variation of sediment provenance at the 09 - 1 Block, Cuu Long Basin: their significance in assessing the Oligocene - Miocene reservoir quality

2021 ◽  
Vol 62 (5) ◽  
pp. 29-42
Author(s):  
Anh Lam Nguyen ◽  
Tung Thanh Nguyen ◽  
Long Van Hoang ◽  
Dung Viet Bui ◽  
Hieu Trung Nguyen ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Sedimentary Basins ◽  
Early Miocene ◽  
Sediment Provenance ◽  
Local Source ◽  
Reservoir Quality ◽  
Physical Parameters ◽  
Late Oligocene ◽  
Better Than

The Cuu Long Basin is one of the Tertiary sedimentary basins situated on the continental shelf of Vietnam, which demonstrates the high potential of oil and gas. Apart from fractured granite reservoirs, the Oligocene - Miocene sand bodies are thought to have significant potential for forming non - structural traps. The results of the study on the composition and physical properties of the sediments derived from wells "X" and "Y", block 09 - 1, Cuu Long Basin show that there is a clear difference between the Late Oligocene and Early Miocene sandstone in the well "X", namely the Miocene sandstone shows larger particle size, higher roundness and sortness (TB: 434.2; Ro: 0.69; So: 2.22) than those of the Late Oligocene sandstone (TB: 104.28; Ro: 0.64; So: 1.46). This difference is likely attributed to the fact that the Miocene sandstone was influenced by the marine environment, which intensified the roundness and sortness. Meanwhile, the well "Y" did not show much difference in the physical parameters of the sediments between the Late Oligocene and Early Miocene age ranges. However, the grain size was slightly increased and the roundness was less during the Early Miocene. It is possible that the “Y” well is located closer to the local source. The variation in the physical parameters of the sediments, proportion of sand grains and clay minerals shows that the quality of late Oligocene reservoir is better than that of Early Miocene reservoir, and the Late Oligocene reservoir quality in the "X" well is better than that in the borehole "Y".

scholarly journals PENGARUH KOMPOSISI SEKAM PADI TERHADAP PARAMETER FISIS BRIKET TEMPURUNG KELAPA

2018 ◽  
Vol 3 (1) ◽  
pp. 37-42
Author(s):  
Maria Lurumutin Umrisu ◽  
Redi K. Pingak ◽  
Albert Zicko Johannes
Keyword(s):  
Water Content ◽  
Rice Husk ◽  
Ash Content ◽  
The Other ◽  
Coconut Shell ◽  
Thickness Variation ◽  
Physical Parameters ◽  
Better Than

ABSTRAK Briket bioarang merupakan salah satu bahan bakar yang berasal dari biomassa. Biomassa yang digunakan dalam penelitian ini adalah tempurung kelapa dan sekam padi. Penelitian ini bertujuan untuk mengetahui pengaruh variasi komposisi sekam padi dan variasi perekat terhadap parameter fisis briket tempurung kelapa. Hasil penelitian ini menunjukkan nilai densitas, nilai kadar air, nilai porositas dan nilai kadar abu, secara berturut-turut berkisar antara (0.69  - 1.12 ), (3,33% - 7,57%.), (16,66% - 31,88%.), (38,46% - 66,66%.). Analisis menunjukkan bahwa secara umum, komposisi sekam padi berbanding terbalik dengan nilai densitas, nilai kadar air dan nilai kadar abu briket dan berbanding lurus dengan nilai porositas briket. Berdasarkan nilai densitas, nilai kadar air, dan nilai kadar abu briket, dapat disimpulkan bahwa dalam penelitian ini briket dengan komposisi 40% tempurung kelapa dan 60% sekam padi memiliki kualitas yang lebih baik dibandingkan dengan komposisi lainnya. Kata Kunci : Briket, Tempurung kelapa, Sekam padi, Densitas, Kadar air, Porositas dan Kadar abu. ABSTRACT Bio-briquette is one of the fuels that comes from biomass. The biomass used in this research is coconut shell and rice husk. The aims of this research are to know the influence of variation of rice husk composition and thickness variation on physical parameters of shell briquettes. The results of this study indicate that the density, moisture value, porosity and ash values, respectively ranged between (0.69  - 1.12 ), (3,33% - 7,57%.), (16,66% - 31,88%.), (38,46% - 66,66%.). The analysis showed that in general, the composittion of rice husk is inversely proportional to density, moisture value and briquette ash value, otherwise the composition of rice husk is directly proportional briquette porosity value. Based on density value, mositure value and ash value it can be concluded that in this research the quality  of briquettes with composition 40% coconut shell and 60% rice husk is better than the other compositions. Keywords: Briquette, Coconut shell, Rice husk, Density, Water content, Porosity and Ash content.

Uncovering Diagenetic Bias in Sediment Provenance Studies: Implications for Reservoir Quality of the Nile Delta Sediments

2019 ◽  
Author(s):  
L. Fielding ◽  
E. Garzanti ◽  
Y. Najman ◽  
I. Millar ◽  
S. Ando ◽  
...  
Keyword(s):  
Nile Delta ◽  
Sediment Provenance ◽  
Reservoir Quality ◽  
Provenance Studies ◽  
Delta Sediments

scholarly journals Unsteady Bioconvection Squeezing Flow in a Horizontal Channel with Chemical Reaction and Magnetic Field Effects

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Qingkai Zhao ◽  
Hang Xu ◽  
Longbin Tao
Keyword(s):  
Magnetic Field ◽  
Chemical Reaction ◽  
Oil Recovery ◽  
Oil And Gas ◽  
Sedimentary Basins ◽  
Squeezing Flow ◽  
Physical Parameters ◽  
Magnetic Field Effects ◽  
Parallel Plates ◽  
Similarity Transformations

The time-dependent mixed bioconvection flow of an electrically conducting fluid between two infinite parallel plates in the presence of a magnetic field and a first-order chemical reaction is investigated. The fully coupled nonlinear systems describing the total mass, momentum, thermal energy, mass diffusion, and microorganisms equations are reduced to a set of ordinary differential equations via a set of new similarity transformations. The detailed analysis illustrating the influences of various physical parameters such as the magnetic, squeezing, and chemical reaction parameters and the Schmidt and Prandtl numbers on the distributions of temperature and microorganisms as well as the skin friction and the Nusselt number is presented. The conclusion is drawn that the flow field, temperature, and chemical reaction profiles are significantly influenced by magnetic parameter, heat generation/absorption parameter, and chemical parameter. Some examples of potential applications of such bioconvection could be found in pharmaceutical industry, microfluidic devices, microbial enhanced oil recovery, modeling oil, and gas-bearing sedimentary basins.

scholarly journals Quality of tiger shrimp artificial feed using various dosages of seaweed (Gracilaria gigas) meal as binder

2011 ◽  
Vol 10 (1) ◽  
pp. 59 ◽  
Author(s):  
Edison Saade ◽  
Siti Aslamyah ◽  
Nur Insana Salam
Keyword(s):  
Physical Parameters ◽  
Water Stability ◽  
Sinking Rate ◽  
Hardness Level ◽  
Randomized Design ◽  
Commercial Feed ◽  
Binding Agents ◽  
The Stability ◽  
Better Than

<p>The quality of an artificial feed particularly the stability of the feed in the water is highly determined by binding agents. The objective of this study was to determine the optimum dosage of seaweed, <em>Gracilaria gigas</em> meal as binder.  Completely randomized design was used in this study, with three dosages of sea weed meal as treatment feeds, i.e. 3, 6, and 9%, with three replications. The control feed was a commercial feed. The physical parameters measured were water stability, hardness level, homogeneity level, sinking rate, attractiveness, and palatability of the feed, and the chemical parameters were protein and lipid dispersion. Based on parameters of hardness level, homogeneity level, protein and lipid dispersion, feed used <em>G. gigas</em> meal of 9% was better than the commercial feed; parameters of sinking rate, attractiveness, and palatability with <em>G. gigas</em> of 9% was equal to the commercial feed; and based on parameters of water stability, the commercial feed was better than treatment feeds. However, when the three treatment feeds were compared, the 9% dosage of <em>G. gigas </em>meal was better than the other two dosages. Based on the results, the feed using seaweed, <em>G. gigas</em> meal of 9% was the best feed.</p> <p>Key words:  Artificial feed, binder, feed quality, G. gigas meal</p> <p> </p> <p>ABSTRAK</p> <p>Bahan perekat sangat menentukan kualitas pakan buatan, terutama stabilitas dalam air.  Tujuan penelitian ini adalah untuk menentukan dosis tepung rumput laut, <em>Gracilaria gigas</em> yang terbaik sebagai bahan perekat. Penelitian didesain menggunakan rancangan acak lengkap, dengan tiga dosis tepung <em>G.gigas</em>, yaitu 3, 6, dan 9% yang diulang tiga kali.  Pakan komersial digunakan sebagai pakan kontrol.  Parameter fisik yang diukur adalah <em>water stability</em> (kecepatan pecah dan dispersi padatan), tingkat kekerasan, tingkat homogenitas, kecepatan tenggelam, daya pikat dan daya lezat pelet, sedangkan parameter kimiawi adalah dispersi protein dan lemak.  Berdasarkan parameter tingkat kekerasan, tingkat homogenitas, dispersi potein dan dispersi lemak pakan yang menggunakan <em>binder </em>tepung <em>G. gigas</em> 9% lebih baik dibanding dengan pakan komersial; parameter kecepatan tenggelam, daya pikat dan daya lezat pakan yang mengandung <em>binder</em> <em>G. gigas</em> 9% sama dengan pakan komersial; dan berdasarkan <em>water stability</em>, pakan komersial lebih baik dibanding dengan pakan yang menggunakan <em>binder </em>tepung rumput laut <em>G. gigas</em>. Namun bila ketiga pakan perlakuan dibandingkan, pakan dengan <em>binder</em> <em>G. gigas</em> 9% masih lebih baik dibanding dengan kedua pakan perlakuan lainnya.  Sesuai hasil penelitian ini, pakan yang menggunakan <em>binder</em> tepung rumput laut, G. <em>gigas</em> dengan dosis 9% adalah pakan terbaik.</p> <p>Kata kunci:  kualitas pakan, <em>binder</em>, tepung <em>G. gigas</em>, pakan buatan</p>

scholarly journals Impact of Diagenesis on the Reservoir Properties of the Cretaceous Sandstones in the Southern Bredasdorp Basin, Offshore South Africa

Minerals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 757
Author(s):  
Temitope Love Baiyegunhi ◽  
Kuiwu Liu ◽  
Oswald Gwavava ◽  
Christopher Baiyegunhi
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Reservoir Quality ◽  
Reservoir Properties ◽  
Oil And Gas Production ◽  
Thin Sections ◽  
Hydrocarbon Reservoir ◽  
Porosity And Permeability ◽  
The Impact

The Cretaceous sandstone in the Bredasdorp Basin is an essential potential hydrocarbon reservoir. In spite of its importance as a reservoir, the impact of diagenesis on the reservoir quality of the sandstones is almost unknown. This study is undertaken to investigate the impact of digenesis on reservoir quality as it pertains to oil and gas production in the basin. The diagenetic characterization of the reservoir is based on XRF, XRD SEM + EDX, and petrographic studies of 106 thin sections of sandstones from exploration wells E-AH1, E-AJ1, E-BA1, E-BB1 and E-D3 in the basin. The main diagenetic processes that have affected the reservoir quality of the sandstones are cementation by authigenic clay, carbonate and silica, growth of authigenic glauconite, dissolution of minerals and load compaction. Based on the framework grain–cement relationships, precipitation of the early calcite cement was either accompanied or followed up by the development of partial pore-lining and pore-filling clay cements, particularly illite. This clay acts as pore choking cement, which reduces porosity and permeability of the reservoir rocks. The scattered plots of porosity and permeability versus cement + clays show good inverse correlations, suggesting that the reservoir quality is mainly controlled by cementation and authigenic clays.

scholarly journals Microfacies and sedimentary environments of the late Oligocene-early Miocene Qom Formation of the Gooreh Berenji region (Jandaq area, central Iran)

GeoArabia ◽  
2007 ◽  
Vol 12 (4) ◽  
pp. 41-60
Author(s):  
Shakeri Alireza ◽  
Douraghinejad Jalal ◽  
Moradpour Mehran
Keyword(s):  
Oil And Gas ◽  
Patch Reef ◽  
Depositional Environments ◽  
Central Iran ◽  
Source Rocks ◽  
Early Miocene ◽  
Petrographic Analysis ◽  
Late Oligocene ◽  
Qom Formation ◽  
Wide Range

ABSTRACT The late Oligocene-early Miocene Qom Formation in the Central Iran Basin contains oil and gas in the Alborz and Sarajeh fields. Organic geochemical analyses in previous studies indicated that the hydrocarbons migrated from deeper source rocks, likely of Jurassic age. In the Central Iran Basin, the Qom Formation is 1,200 m thick and is bounded by the Oligocene Lower Red Formation and the middle Miocene Upper Red Formation. In previous studies, the Qom Formation was divided into nine members designated from oldest to youngest: a, b, c to c4, d, e and f, of which “e” is 300 m thick and constitutes the main reservoir. Our study focused on a Qom section located in the Gooreh Berenji region of central Iran which is 294 m thick. The lower part of the formation was not deposited, and only the following four members of early Miocene age (Aquitanian and Burdigalian) were identified between the Lower and Upper Red formations: “c2”? (mainly greyish to greenish gypsiferous marls); “d” (thin- to thick-bedded anhydrite with intercalation of thin-bedded sandstone); “e” (argillaceous or sandy limestone); and “f” (fine-grained coral and bryozoan boundstone). In contrast to the Central Iran Basin, the “e” member in Gooreh Berenji is only 15 m thick and does not have a good reservoir potential. A detailed petrographic analysis of the Gooreh Berenji section resulted in the identification of 13 microfacies (MF) that were interpreted in terms of their depositional environments according to the following categories: MF1 (sabkha), MF2 (intertidal river channel), MF3 (lower intertidal), MF4 (peritidal), MF5 (supratidal), MF6 and MF7 (shallow restricted lagoon), MF8 and MF10 (proximal open-marine), MF9 (leeward lagoon), MF11 (shoal), MF12 (reef and patch reef formed within lagoon), and MF13 (open-marine). The Qom Formation constitutes a regional transgressive-regressive sequence that is bounded by two continental units (Lower and Upper Red formations). The transgression started from the south in the late Oligocene and by the early Miocene the sea covered all of central Iran. In the Gooreh Berenji area, carbonate deposition occurred on a shallow-marine ramp. The presence of a wide range of lagoonal facies indicates that reefal facies (“f”) developed in a narrow elongated strip away from the shoreline.

An adaptive approach to processing and interpretation well testing data in order to build seismic models

2020 ◽  
pp. 8-17
Author(s):  
S. K. Turenko ◽  
E. A. Cherepanov
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Oil Fields ◽  
Physical Parameters ◽  
Well Testing ◽  
Adaptive Approach ◽  
Testing Data ◽  
Seismic Models

The article is devoted to increasing the efficiency of well testing in the construction of seismic models of oil and gas objects. We suggest using the adaptive approach, which has been developed by us, to processing and interpretation of well testing data; it will increase the efficiency of management of the processing and interpretation of well testing data. The essence of the approach consists of dividing the process into stages, developing for each stage a multivariate decision scheme, and formal criteria for evaluating the results.A conceptual framework has been developed for the implementation of the proposed approach as applied to the processing and interpretation of well testing data in order to construct seismic models of terrigenous deposits in Western Siberia. We propose formalized criteria for assessing the quality of processing results of well testing data, modeling of well testing curves, and determination of petro-physical parameters. The results obtained are illustrated on practical data on oil fields in Western Siberia.

scholarly journals The forming mechanisms of Oligocene combination/stratigraphic traps and their reservoir quality in southeast Cuu Long Basin offshore of Vietnam

2019 ◽  
Vol 22 (1) ◽  
pp. 185-195
Author(s):  
Chuc Dinh Nguyen ◽  
Xuan Van Tran ◽  
Kha Xuan Nguyen ◽  
Huy Nhu Tran ◽  
Tan Thanh Mai
Keyword(s):  
Oil And Gas ◽  
Integrated Approach ◽  
Gas Production ◽  
Reservoir Quality ◽  
Hydrocarbon Potential ◽  
Seismic Attribute ◽  
Oil And Gas Production ◽  
Seismic Sequence Stratigraphy ◽  
The One

To date, most of the oil and gas production in Cuu Long Basin (CLB) is contributed from structural traps, making them more and more depleted after years of exploitation. Exploration activities in CLB, therefore, are shifting towards other traps, including stratigraphic and/or combination ones. The results of exploration and appraisal activities in recent years have increasingly discovered more hydrocarbons in the Oligocene section; some of them were discovered in combination/ stratigraphic traps. Many studies on Oligocene targets in Southeast CLB have been carried out but only a few mention nonstructural traps. This leads to uncertainty about the forming mechanisms and distribution, as well as unevaluated hydrocarbon potential of these traps. An integrated approach- utilizing methods of seismic sequence stratigraphy, seismic attribute interpretation, and petrophysical/ petrographical analysis- was applied in this research to identify the forming mechanisms of Oligocene combination/ stratigraphic traps in southeast area of CLB and to evaluate their reservoir quality. The research results show that the key forming factor for stratigraphic traps of sand body is lithology change and the one for pinch-out stratigraphic traps is tapering off of sand layers landward or toward the horsts. The reservoir quality of these traps ranges from moderate to good. By integratedly applying the methods, the forming mechanisms and reservoir quality of Oligocene stratigraphic traps could be delineated. In order to optimize the next-stage exploration strategy in CLB, detailed studies on petroleum system, especially top and bottom seals, and the hydrocarbon potential of these stratigraphic traps, need to be carried out.  

scholarly journals PENGGUNAAN KAYU MANIS (Cinnamomum burmani) UNTUK MENGATASI KETENGIKAN PADA MINYAK KELAPA SECARA TRADISIONAL

2015 ◽  
Vol 5 (2) ◽  
pp. 81-88
Author(s):  
Kadir ◽  
Shabri Putra Wirman ◽  
Sri Fitria Retnawaty ◽  
Aji Suroso
Keyword(s):  
Ph Value ◽  
Saturated Fatty Acids ◽  
Coconut Oil ◽  
Physical Parameters ◽  
Cinnamon Oil ◽  
Betel Leaf ◽  
Smell Test ◽  
Long Time ◽  
Better Than

Coconut oil is an oil produced from coconuts. Based on the high levels of saturated fatty acids and lauric acid (anti-microbial) makes coconut oil as an oil that has the highest quality of other oils. But if oil is stored in a long time it will cause rancidity. Rancidity can be caused by several factors such as oxidation and hydrolysis reactions. One way to overcome this is to add antioxidant rancidity. Antioxidants can be found in everyday life, such as the onion, cloves, betel leaf and cinnamon. In this study using cinnamon oil as an antioxidant and pH were tested for physical parameters such as viscosity, Density, conductivity, resistivity, and the smell test. The results of the pH test and demonstrate physical if cinnamon can prevent oil from rancidity based on the length of storage. And the addition of cinnamon to a maximum of 8 grams are in 50 ml of coconut oil has a pH value, Viscosity, Density, conductivity, resistivity, and the test odors better than the other samples.

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