Comprehensive Assessment and Targeted Approach to the Implementation of the Gas-Lift Method of Operation on the Yamal Peninsula Novy Port Field

2021 ◽  
Author(s):  
Aleksander Nikolaevich Blyablyas ◽  
Sergey Anatolevich Vershinin ◽  
Petr Nikolaevich Afanasiev ◽  
Ayrat Anvarovich Mingazov ◽  
Rustem Faridovich Akhmetgareev

Abstract As geological environment becomes more complicated, specifics of oil fields with high gas content more demanding, and the Company's requirements for assets development efficiency more stringent, new challenges arise that require application of high-tech approaches and new tools to solve the tasks set. The era of "easy" oil is far behind, and there are no "simple" tasks left, so the key goal of oil companies now is to radically improve efficiency of existing "difficult" fields including development of gas condensate reservoirs and oil rims. The interest in development of new approaches to improve efficiency of the Novoportovskoye field is caused by the huge potential of the asset. Despite the fact that the field was discovered back in 1964, its remaining reserves are estimated at more than 250 million tons of oil and gas condensate and more than 270 billion cubic meters of natural gas, which are concentrated in five reservoirs. The Novoportovskoye field is the northernmost and largest on the Yamal Peninsula, but the complexity of its development and operation is caused not so much by geography and the lack of transport infrastructure but by the presence of a gas cap, low reservoir permeability, the occurrence of underlying water, and high gas content in produced reservoir fluid. The high gas content complicates the production process. The main method of operation in the existing fields of the Yamal Peninsula is artificial lift by electric submersible pumps (ESP) on rental basis. Given the remoteness and isolation of the Arctic region, the high cost of equipment rental, and the low efficiency of ESPs in liquids with high content of dissolved gas, it is only fair to ask a question of whether there is a tool that may allow us to predict operation parameters for different lift methods. The existing models and tools intended to assess behavior of the field are not good enough to fully predict gas breakthrough rates, optimize well operation parameters in case of short-term production forecasting, or select the optimal lift method. In this paper, we described application of an integrated modeling process for a targeted assessment of well operation parameters at the Novoportovskoye field. Also, in the framework of this paper, we performed a technical and economic estimation of the options under consideration, and formulated some recommendations to improve efficiency of development and operation of the field under the impact of the existing complicating factors.

Author(s):  
Dmitry V. Arzyutov

This article deals with the ethnographic analysis of the history and social life of electricity among Nenets in the Yamal Peninsula. Based on historical documents and field data the author reconstructs a history of the electrification of the northern part of the peninsula. This work also includes the reflections on social and cultural meanings of electricity among Nenets in and out the tundra. Through these historical and current dynamics, the author suggests analysing the life of electricity in off-the-grid settings through the lens of transnational technological entanglements in the Arctic


Author(s):  
Yuriy V. Erokhin ◽  
Kirill S. Ivanov ◽  
Anatoliy V. Zakharov ◽  
Vera V. Khiller

The results of studying the mineralogy of metamorphic schists from the Pre-Jurassic base of the Arctic part of the West Siberian plate are presented. The accessory and ore mineralization of schists from the Zapadno-Yarotinsky license area located in the southern part of the Yamal Peninsula is studied. The schists was uncovered by the Zapadno-Yarotinskaya No. 300 well at a depth of 2762 m. Above the section, the metamorphic rocks are overlain by a young Meso-Cenozoic cover. The schists are mainly composed of quartz, plagioclase (albite), carbonates (dolomite and siderite), mica (muscovite) and chlorite (donbassite). The discovered accessory and ore minerals in the metamorphic schists of the Zapadno-Yarotinsky area can be divided into two groups. The first group includes minerals that were formed during the metamorphism of schists, or were preserved as detrital matter. These minerals include zircon, fluorapatite, and rutile as the most stable compounds. The remaining mineralization (pyrite, sphalerite, chalcopyrite, cubanite, galena, cobaltite, barite, xenotime-(Y), goyazite, synchysite-(Nd), native silver and copper) is clearly secondary and was formed as a result of superimposed metasomatic processes. Judging from the described mineralogy, the schists underwent changes as a result of superimposed propyllitization. The temperature range of this process is determined by the formation of cubanite in association with chalcopyrite at a temperature of 200-210 оС.


2018 ◽  
Vol 8 (3) ◽  
pp. 6-19
Author(s):  
V. F. Bogachev ◽  
S. Yu. Kozmenko ◽  
A. B. Teslya ◽  
A. A. Shchegolkova

The development of new technologies, reducing the economic and physical costs of access to the unique resources of the Arctic, has simultaneously identified a set of interrelated economic and geopolitical problems arising during the Arctic territory development. Therefore, the subject of research of the article is the problem of the Arctic communication system formation, without which the further development of the region is not possible. The authors tried to substantiate the priority directions of the development of the communication system of the Arctic region with the aim to ensure continuous mobile access to strategically significant resources of the region in the current economic and geopolitical tendencies. The article proves that the main task of developing the Arctic should be to ensure the sustainable development of the Arctic region, which can not be achieved without the formation of an adequate level of a system of transport communications which meets the set goals and objectives of the development of the territories. Limited resources with a significant amount of required initial capital investment require an informed choice of priority investment areas, “points of growth” of the system of communications formed. The main conclusion is that the provision of operational access to the strategic resources of the Arctic is impossible without further development of the transport communications system in the region, and first of all the marine transport infrastructure (in particular, the Northern Sea route). At the same time, the impact of the redistribution of traffic flows on various aspects of the region's livelihoods, including the labor market and the social sphere, requires a separate study.


Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5345
Author(s):  
Vasily Bogoyavlensky ◽  
Igor Bogoyavlensky ◽  
Roman Nikonov ◽  
Vladimir Yakushev ◽  
Viacheslav Sevastyanov

The article is devoted to the four-year (2017–2020) monitoring of gas emissions from the bottom of the Seyakha Crater, located in the central part of the Yamal Peninsula (north of Western Siberia). The crater was formed on 28 June 2017 due to a powerful blowout, self-ignition and explosion of gas (mainly methane) at the site of a heaving mound in the river channel. On the basis of a comprehensive analysis of expeditionary geological and geophysical data (a set of geophysical equipment, including echo sounders and GPR was used) and remote sensing data (from space and with the use of UAVs), the continuing nature of the gas emissions from the bottom of the crater was proven. It was revealed that the area of gas seeps in 2019 and 2020 increased by about 10 times compared to 2017 and 2018. Gas in the cryolithosphere of the Arctic exists in free and hydrated states, has a predominantly methane composition, whereas this methane is of a biochemical, thermogenic and/or mixed type. It was concluded that the cryolithosphere of Yamal has a high level of gas saturation and is an almost inexhaustible unconventional source of energy resources for the serving of local needs.


Author(s):  
Vladimir Sergeevich PONOMAREV ◽  
◽  
Yuriy Viktorovich EROKHIN ◽  
Kirill Svyatoslavich IVANOV ◽  
Nadezhda Nikolaevna FARRAKHOVA ◽  
...  

Relevance of the work. The Arctic part of the West Siberian megabasin is the main source of oil and gas in Russia, therefore, the study of the geological structure of this region is extremely important. Recently, Russia has lodged an application to extend its territory in the Arctic Ocean along the ridges that stretch from the continental shelf. Unfortunately, at the same time, we know little about the geological structure of the Arctic in the region of Western Siberia, where the thickness of the sedimentary cover is very high (about 3–4 km), therefore, the study of the basement of the Yamal Peninsula seems to be extremely urgent. The purpose of this work is mineralogical, petrological and geochemical study of dolerites from the pre-Jurassic basement of the Bovanenkovskaya area (well No. 114) within the territory of the gas condensate field of the same name, located in the western part of the Yamal Peninsula. Scope of the work. This work can be useful in constructing geological maps of the pre-Jurassic basement of the Yamal Peninsula. Results and conclusions. We have studied the mineralogical and geochemical features of dolerites from the pre-Jurassic basement of the Bovanenkovskaya area (well No. 114, sampling depth – 3210 m) of the West Siberian megabasin. The mineralogy of the rocks is represented by augite, diopside, albite, magnesian chamosite, ferrous hornblende, calcite, siderite, dolomite, anorthoclase, grossular, zeolite (gmelenite-K), pyrite, chalcopyrite, and rare lead chloride – cotunnite. The rocks underwent minor transformations in the conditions of the lower greenschist metamorphism, as well as secondary alterations in the form of superimposed propylitization. As a result of this low-temperature metasomatic process, zeolite, carbonate (calcite, dolomite, and siderite) and sulfide mineralization composed of pyrite and chalcopyrite, as well as cotunnite, which apparently replaced the dissemination of galena, were formed in the rock. Judging by geological position of the region, these dolerites are most likely formed at shallow depths during continental rifting. Remelting of the Paleozoic island arc substrate during the Early Triassic rifting and volcanism provided some closeness to the island arc trend in the geochemical features of these rift volcanics.


2020 ◽  
Vol 13 (1) ◽  
pp. 183-194 ◽  
Author(s):  
Alexey Yu. Sidorchuk ◽  
Tatiana A. Matveeva

The net of dry valleys, gullies and shallow hollows is typical for the East European Plain. Dense vegetation usually covers their bottoms and slopes, so the modern erosion there is negligible in the pristine conditions. This erosion landscape formed in periglacial conditions during the terminations of the last two glaciations. The same kind of the erosion landscape is typical for the Arctic regions, especially for the Yamal, Gydan, and Tazovsky peninsulas. The size and the density of such valleys and gullies are quite similar to those existing on the East European Plain, but these erosion features are active there, especially in the conditions of natural or anthropogenic deterioration of the vegetation cover. As the density of dry valley network is an indicator of hydrological conditions in the river basin, the landscapes of the Arctic regions can be used as the modern analogs of the territories with the past periglacial erosion.The recent hydrological characteristics of the west-central Yamal Peninsula were used to estimate the parameters of erosion network at the Khoper River basin, formed in periglacial conditions. For these purposes gully erosion and thermoerosion model GULTEM was verified and calibrated based on the observation of the modern processes on the Yamal Peninsula. The meteorological characteristics were taken from ERA-Interim Reanalysis grid. To calculate the flow characteristics a synthetic hydrological model was used. These verified and calibrated models were used to find the most suitable characteristics of climate and vegetation cover, which can explain the structure and density of the Perepolye dry valley in the Khoper River basin. This dry valley with the main trunk length of 6400 m was formed at the end of the Late Valdai Glaciation (MIS 2). The conditions required for the formation of a periglacial gully of such length were estimated with the GULTEM model. The critical velocity of erosion initiation was within the range 0.8-0.9 m/s, and the surface runoff depth was close to the recent one on the Yamal Peninsula (330 mm). The system of shallow hollows in the Perepolye catchment (the gullies formed at the end of the Moscow Glaciation, MIS 6) is denser and longer than the dry valley system, and the modelling estimates showed that the surface runoff during that period was almost 3.3 times more than the recent one on the Yamal Peninsula. 


2012 ◽  
Vol 2 (2) ◽  
pp. 80-91 ◽  
Author(s):  
Mikhail G. Golovatin ◽  
Ludmila M. Morozova ◽  
Svetlana N. Ektova

Currently, 380 000 domestic reindeers are grazed on 106000 km2 of the Yamal peninsula. This unique situation was analyzed from a view of an ecosystem role of indigenous people. Attention was paied to two key points: the impact of overgrazing on (1) vegetation and (2) vertebrates. The results of our 30-years investigations were compared with the published vegetation data from the 1930-ies. In our paper, it is demonstrated, that overgrazing has resulted in a substantial transformation of vegetation, mostly in lichen tundra. Recent situation is close to total extinction of lichen pastures on the Yamal peninsula. Due to overgrazing, total availability of grasses and shrubs have also decreased, in grasses by 1.5-2.0 times, low shrubs - almost 8 times, tall shrubs – 2.0 times. The degradation of vegetation leads to desertification of the peninsula. The area of ​​sandy spots with no vegetation is on average about 5.5% of the peninsula land, however, it could reach up to 19% locally. Overgrazing affected the animal populations too. Since 1990, the peaks of lemmings have never reached former high values and become locally-limited and patchy. This has led to a decrease in the number of predators. The number of other tundra birds decreased as well. The decrease reached almost 2 times lower numbers in geese, 3 times in hygrophillous waders, 5.5 times in Lapland bunting, and 2 times in long-tailed Duck and Willow grouse on watershed. The Nenets themselves can not control reindeer population because of rigid social and psychological attitudes based on their traditions. The main aim of the Nenets reindeer-farming is not to create marketable products for a profit, but increasing the reindeer number of itself. A situation has formed, that, on the one hand, the Nenets are not economically dependent upon the society, and on the other hand, the society contributes to preservation of their traditional farming. The Nenets reindeer-farming, thus become an important factor contributing to rapid transformation of tundra ecosystem.


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