scholarly journals HYDROCARBON GENERATION DYNAMICS OF KUREIKA SYNCLINE KUONAMKA SOURCE ROCK BASED ON THE DATA OF CHIRINDINSKAYA-271 WELL

2021 ◽  
Vol 2 (1) ◽  
pp. 307-315
Author(s):  
Ekaterina S. Yaroslavtseva ◽  
Ilya I. Noskov
Keyword(s):  
Source Rock ◽  
Hydrocarbon Generation ◽  
Subsidence History ◽  
History Of ◽  
The Moment

Based on the materials of Chirindinskaya-271 well Kureika syncline sedimentary boundary subsidence history has been performed, the history of source rock catagenesis before trap magmaizm has been recreated, the time of kuonamka source rock getting into oil window has been set, hydrocarbon generation extent has been calculated till the moment before trap magmatism.

HYDROCARBON PROSPECTIVITY OF THE DEEPWATER GIPPSLAND BASIN, VICTORIA, AUSTRALIA

2001 ◽  
Vol 41 (1) ◽  
pp. 91 ◽  
Author(s):  
T. Bernecker ◽  
M.A. Woollands ◽  
D. Wong ◽  
D.H. Moore ◽  
M.A. Smith
Keyword(s):  
Source Rock ◽  
Oil And Gas ◽  
Data Sets ◽  
Hydrocarbon Generation ◽  
The North ◽  
Potential Source Rock ◽  
Exploration And Production ◽  
Modelling Studies ◽  
History Of ◽  
Gippsland Basin

After 35 years of successful exploration and development, the Gippsland Basin is perceived as a mature basin. Several world class fields have produced 3.6 billion (109) BBL (569 GL) oil and 5.2 TCF (148 Gm3) gas. Without additional discoveries, it is predicted that further significant decline in production will occur in the next decade.However, the Gippsland Basin is still relatively underexplored when compared to other prolific hydrocarbon provinces. Large areas are undrilled, particularly in the eastern deepwater part of the basin. Here, an interpretation of new regional aeromagnetic and deep-water seismic data sets, acquired through State and Federal government initiatives, together with stratigraphic, sedimentological and source rock maturation modelling studies have been used to delineate potential petroleum systems.In the currently gazetted deepwater blocks, eight structural trapping trends are present, each with a range of play types and considerable potential for both oil and gas. These include major channel incision plays, uplifted anticlinal and collapsed structures that contain sequences of marine sandstones and shales (deepwater analogues of the Marlin and Turrum fields), as well as large marine shale-draped basement horsts.The study has delineated an extensive near-shore marine, lower coastal plain and deltaic facies association in the Golden Beach Subgroup. These Late Cretaceous strata are comparable to similar facies of the Tertiary Latrobe Siliciclastics and extend potential source rock distribution beyond that of previous assessments. In the western portion of the blocks, overburden is thick enough to drive hydrocarbon generation and expulsion. The strata above large areas of the source kitchen generally dip to the north and west, promoting migration further into the gazetted areas.Much of the basin’s deepwater area, thus, shares the deeper stratigraphy and favourable subsidence history of the shallow water producing areas. Future exploration and production efforts will, however, be challenged by the 200–2500 m water-depths and local steep bathymetric gradients, which affect prospect depth conversion and the feasibility of development projects in the case of successful exploration.

Unconventional Shale Play in Oman: Preliminary Assessment of the Shale Oil / Shale Gas Potential of the Silurian Hot Shale of the Southern Rub al-Khali Basin

2015 ◽  
Author(s):  
Jamal A. Madi ◽  
Elhadi M. Belhadj
Keyword(s):  
Source Rock ◽  
Shale Gas ◽  
Oil And Gas ◽  
Source Rocks ◽  
Geochemical Data ◽  
Hydrocarbon Generation ◽  
Shale Oil ◽  
Lower Silurian ◽  
History Of ◽  
Oil Gas

Abstract Oman's petroleum systems are related to four known source rocks: the Precambrian-Lower Cambrian Huqf, the Lower Silurian Sahmah, the Late Jurassic Shuaiba-Tuwaiq and the Cretaceous Natih. The Huqf and the Natih have sourced almost all the discovered fields in the country. This study examines the shale-gas and shale-oil potential of the Lower Silurian Sahmah in the Omani side of the Rub al Khali basin along the Saudi border. The prospective area exceeds 12,000 square miles (31,300 km2). The Silurian hot shale at the base of the Sahmah shale is equivalent to the known world-class source rock, widespread throughout North Africa (Tannezouft) and the Arabian Peninsula (Sahmah/Qusaiba). Both thickness and thermal maturities increase northward toward Saudi Arabia, with an apparent depocentre extending southward into Oman Block 36 where the hot shale is up to 55 m thick and reached 1.4% vitrinite reflectance (in Burkanah-1 and ATA-1 wells). The present-day measured TOC and estimated from log signatures range from 0.8 to 9%. 1D thermal modeling and burial history of the Sahmah source rock in some wells indicate that, depending on the used kinetics, hydrocarbon generation/expulsion began from the Early Jurassic (ca 160 M.a.b.p) to Cretaceous. Shale oil/gas resource density estimates, particularly in countries and plays outside North America remain highly uncertain, due to the lack of geochemical data, the lack of history of shale oil/gas production, and the valuation method undertaken. Based on available geological and geochemical data, we applied both Jarvie (2007) and Talukdar (2010) methods for the resource estimation of: (1) the amount of hydrocarbon generated and expelled into conventional reservoirs and (2) the amount of hydrocarbon retained within the Silurian hot shale. Preliminary results show that the hydrocarbon potential is distributed equally between wet natural gas and oil within an area of 11,000 square mile. The Silurian Sahmah shale has generated and expelled (and/or partly lost) about 116.8 billion of oil and 275.6 TCF of gas. Likewise, our estimates indicate that 56 billion of oil and 273.4 TCF of gas are potentially retained within the Sahmah source rock, making this interval a future unconventional resource play. The average calculated retained oil and gas yields are estimated to be 6 MMbbl/mi2 (or 117 bbl oil/ac-ft) and 25.3 bcf/mi2 (or 403 mcf gas/ac-ft) respectively. To better compare our estimates with Advanced Resources International (EIA/ARI) studies on several Silurian shale plays, we also carried out estimates based on the volumetric method. The total oil in-place is 50.2 billion barrels, while the total gas in-place is 107.6 TCF. The average oil and gas yield is respectively 7 MMbbl/mi2 and 15.5 bcf/mi2. Our findings, in term of oil and gas concentration, are in line or often smaller than all the shale oil/gas plays assessed by EIA/ARI and others.

scholarly journals Hydrocarbon Generation History of Tertiary Source Rocks in Phu Khanh Basin, Offshore Vietnam

2020 ◽  
Vol 9 (2) ◽  
pp. 59-65
Author(s):  
Huy Xuan Nguyen ◽  
Trang Thi Thu Nguyen ◽  
Van Nguyen Nguyen ◽  
Thi Hong Quyen Vo
Keyword(s):  
Source Rock ◽  
Middle Miocene ◽  
Development Planning ◽  
Source Rocks ◽  
Hydrocarbon Generation ◽  
Bottom Part ◽  
Field Development ◽  
Wet Gas ◽  
History Of ◽  
Southwest Part

The source rock maturity and the hydrocarbon generation history are evaluated in the deepwater Phu Khanh Basin. The average values of heat flow, paleo water depth, and surface-water interface temperatures range from 50.80–61.69 mW/m2, 150-3,500 m, and 2.30-250C, respectively. The Oligocene and Lower–Middle Miocene source rocks are presented. The Oligocene source rock is derived from the lacustrine environment; it is mature to overmature in the Southwest part of the Phu Yen Depression. The main oil phase started in the Early Miocene, and the amount of wet gas occurred only at the bottom part. The Lower-Middle Miocene source rock has been immature in both the Southwest and Northeast part of the Phu Yen Depression. Based on the geochemical analysis, these source rocks were predominantly a mixture of type II and type III kerogens. The total organic carbon and the hydrogen index values range from 1.8-2.5 % and 250-320 mg/g, respectively. The results can help define reservoir locations for future field development planning in the Phu Khanh Basin.

Evaluation of concomitant gynecological pathology in group of patients of reproductive age with tumors and tumor formations

2020 ◽  
pp. 10-14
Author(s):  
N. V. Spiridonova ◽  
A. A. Demura ◽  
V. Yu. Schukin
Keyword(s):  
Diagnostic Errors ◽  
Ovarian Tumors ◽  
Reproductive Age ◽  
Women Of Reproductive Age ◽  
Predisposing Factor ◽  
Ovarian Tumours ◽  
Preoperative Diagnostic ◽  
Neoplastic Process ◽  
History Of ◽  
The Moment

According to modern literature, the frequency of preoperative diagnostic errors for tumour-like formations is 30.9–45.6%, for malignant ovarian tumors is 25.0–51.0%. The complexity of this situation is asymptomatic tumor in the ovaries and failure to identify a neoplastic process, which is especially important for young women, as well as ease the transition of tumors from one category to another (evolution of the tumor) and the source of the aggressive behavior of the tumor. The purpose of our study was to evaluate the history of concomitant gynecological pathology in a group of patients of reproductive age with ovarian tumors and tumoroid formations, as a predisposing factor for the development of neoplastic process in the ovaries. In our work, we collected and processed complaints and data of obstetric and gynecological anamnesis of 168 patients of reproductive age (18–40 years), operated on the basis of the Department of oncogynecology for tumors and ovarian tumours in the Samara Regional Clinical Oncology Dispensary from 2012 to 2015. We can conclude that since the prognosis of neoplastic process in the ovaries is generally good with timely detection and this disease occurs mainly in women of reproductive age, doctors need to know that when assessing the parity and the presence of gynecological pathology at the moment or in anamnesis, it is not possible to identify alarming risk factors for the development of cancer in the ovaries.

The Goal of the Moment (Summary of the Lecture Delivered by Ivan Ilyin in May 1917)

2019 ◽  
Vol 60 ◽  
pp. 424-428
Author(s):  
Alexandra I. Vakulinskaya
Keyword(s):  
The State ◽  
October Revolution ◽  
Legal Consciousness ◽  
New Order ◽  
History Of ◽  
The Moment

This publication is devoted to one of the episodes of I. A. Ilyin’s activity in the period “between two revolutions”. Before the October revolution, the young philosopher was inspired by the events of February 1917 and devoted a lot of time to speeches and publications on the possibility of building a new order in the state. The published archive text indicates that the development of Ilyin’s doctrine “on legal consciousness” falls precisely at this tragic moment in the history of Russia.

scholarly journals Coupling between Source Rock and Reservoir of Shale Gas in Wufeng-Longmaxi Formation in Sichuan Basin, South China

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2679
Author(s):  
Yuying Zhang ◽  
Shu Jiang ◽  
Zhiliang He ◽  
Yuchao Li ◽  
Dianshi Xiao ◽  
...  
Keyword(s):  
Source Rock ◽  
Shale Gas ◽  
Sichuan Basin ◽  
Gas Content ◽  
Potential Zone ◽  
Hydrocarbon Generation ◽  
Gas Generation ◽  
Longmaxi Formation ◽  
Siliceous Shale ◽  
Organic Pores

In order to analyze the main factors controlling shale gas accumulation and to predict the potential zone for shale gas exploration, the heterogeneous characteristics of the source rock and reservoir of the Wufeng-Longmaxi Formation in Sichuan Basin were discussed in detail, based on the data of petrology, sedimentology, reservoir physical properties and gas content. On this basis, the effect of coupling between source rock and reservoir on shale gas generation and reservation has been analyzed. The Wufeng-Longmaxi Formation black shale in the Sichuan Basin has been divided into 5 types of lithofacies, i.e., carbonaceous siliceous shale, carbonaceous argillaceous shale, composite shale, silty shale, and argillaceous shale, and 4 types of sedimentary microfacies, i.e., carbonaceous siliceous deep shelf, carbonaceous argillaceous deep shelf, silty argillaceous shallow shelf, and argillaceous shallow shelf. The total organic carbon (TOC) content ranged from 0.5% to 6.0% (mean 2.54%), which gradually decreased vertically from the bottom to the top and was controlled by the oxygen content of the bottom water. Most of the organic matter was sapropel in a high-over thermal maturity. The shale reservoir of Wufeng-Longmaxi Formation was characterized by low porosity and low permeability. Pore types were mainly <10 nm organic pores, especially in the lower member of the Longmaxi Formation. The size of organic pores increased sharply in the upper member of the Longmaxi Formation. The volumes of methane adsorption were between 1.431 m3/t and 3.719 m3/t, and the total gas contents were between 0.44 m3/t and 5.19 m3/t, both of which gradually decreased from the bottom upwards. Shale with a high TOC content in the carbonaceous siliceous/argillaceous deep shelf is considered to have significant potential for hydrocarbon generation and storage capacity for gas preservation, providing favorable conditions of the source rock and reservoir for shale gas.

scholarly journals Decolonization and the aesthetics of disorder: Naipaul, Evaristo, Boland

2021 ◽  
pp. 002198942199605
Author(s):  
Matthew Whittle
Keyword(s):  
European History ◽  
Resistance Movements ◽  
Eavan Boland ◽  
History Of ◽  
Paul Gilroy ◽  
Orderly Transition ◽  
The Moment ◽  
Bear Witness ◽  
Formal Features

Decolonization is presented in dominant accounts as an orderly transition and not the culmination of anticolonial resistance movements. This in turn contributes to what Paul Gilroy terms an endemic “post-imperial melancholia” across contemporary European nations and the removal of empire and its demise from understandings of European history. Drawing on Bill Schwarz’s reconceptualization of a Fanonian commitment to disorder, this article focuses on Britain’s history of colonialism and post-imperial immigration and argues for the mapping of a disorderly aesthetics in works by V. S. Naipaul, Bernardine Evaristo, and Eavan Boland. The three formal features of non-linearity, polyvocality, and environmental imagery enable these writers to bear witness to the complex histories of empire, transatlantic slavery, decolonization, and immigration from the colonial “margins”. These “aesthetics of disorder” counter a dominant narrative of decolonial order and challenge conceptions of British exceptionalism that were reinforced at the moment of imperial decline.

Depositional style and subsidence history of the Turpan Basin (NW China)

1999 ◽  
Vol 128 (1-2) ◽  
pp. 155-169 ◽  
Author(s):  
Lei Shao ◽  
Karl Stattegger ◽  
Wenhou Li ◽  
Bernd J Haupt
Keyword(s):  
Nw China ◽  
Turpan Basin ◽  
Subsidence History ◽  
History Of

Epidemiological Characteristics of Sport-Related Concussion in Athletes of Brazilian Jiu-Jitsu and Muay Thai

Neurology ◽  
2021 ◽  
Vol 98 (1 Supplement 1) ◽  
pp. S23.1-S23
Author(s):  
Carlos Pinheiro ◽  
Francisca Taciane Nascimento Sousa
Keyword(s):  
Close Contact ◽  
Cross Sectional Study ◽  
Self Report ◽  
Combat Sports ◽  
Cross Sectional ◽  
Brazilian Sample ◽  
Individual Interviews ◽  
History Of ◽  
The Moment ◽  
Epidemiological Characteristics

ObjectiveTo evaluate the self-reported history of concussion in athletes of both Brazilian Jiu-Jitsu (BJJ) and Muay Thai.BackgroundCombat sports are widely practiced around the world. They include modalities that involves punches or kicks directed at the opponent's head (Striking sports) or that consists of grabbing an opponent and taking him to the ground (Grappling sports). Due to the objectives and close contact in combat sports, the risk of concussion is significant.Design/MethodsThis was a cross-sectional study involving a Brazilian sample of BJJ athletes (n-18) and Muay Thai athletes (n-22). The sample was consisted of both professional and amateur athletes (Women constituted 20% of sample). Through individual interviews with a researcher the following data were collected: self-report of concussion and the moment of the injury (whether in practice or in the fight). The Post-Concussion Symptoms Scale (PCSS) was also applied. In the present study, a concussion was considered as a direct impact on the head followed by symptoms. This study was approved by a local Ethics Committee.ResultsAmong BJJ athletes, 61% reported a history of concussion, while among Muay Thai athletes the percentage was more higher (86%). The main mechanisms of head impact were the throw/takedown and elbow-hits to the head in BJJ and punches and knee-hits to the head in Muay Thai. There was no difference in the symptom score between BJJ and Muay Thai concussed athletes (average of 11 vs 10.7, respectively). The most common symptoms were dizziness, headache and nausea in BJJ athletes, and headache, nausea, drowsiness and brain fogginess in Muay Thai ones.ConclusionsThe results presented herein suggest that concussions in Muay Thai and BJJ occur through different mechanisms. The clinical profile of post-concussion symptoms appears to be different between BJJ and Muay Thai athletes.

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