Geological and Field Feasibility Study of Field Development Management Using Marker-Based Production Profiling Surveillance in Horizontal Wells: The Case Study of the Yuzhno-Vyintoiskoye Field

2021 ◽  
Author(s):  
Marat Rafailevich Dulkarnaev ◽  
Yuri Alexeyevich Kotenev ◽  
Shamil Khanifovich Sultanov ◽  
Alexander Viacheslavovich Chibisov ◽  
Daria Yurievna Chudinova ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Water Saturation ◽  
Clay Content ◽  
Horizontal Wells ◽  
Integrated Approach ◽  
Geological Structure ◽  
Gas Field ◽  
Field Development ◽  
Reservoir Rocks

In pursuit of efficient oil and gas field development, including hard-to-recover reserves, the key objective is to develop and provide the rationale for oil recovery improvement recommendations. This paper presents the results of the use of the workflow process for optimized field development at two field clusters of the Yuzhno-Vyintoiskoye field using geological and reservoir modelling and dynamic marker-based flow production surveillance in producing horizontal wells. The target reservoir of the Yuzhno-Vyntoiskoye deposit is represented by a series of wedge-shaped Neocomian sandstones. Sand bodies typically have a complex geological structure, lateral continuity and a complex distribution of reservoir rocks. Reservoir beds are characterised by low thickness and permeability. The pay zone of the section is a highly heterogeneous formation, which is manifested through vertical variability of the lithological type of reservoir rocks, lithological substitutions, and the high clay content of reservoirs. The target reservoir of the Yuzhno-Vyintoiskoye field is marked by an extensive water-oil zone with highly variable water saturation. According to paleogeographic data, the reservoir was formed in shallow marine settings. Sand deposits are represented by regressive cyclites that are typical for the progressing coastal shallow water (Dulkarnaev et al., 2020). Currently, the reservoir is in production increase cycle. That is why an integrated approach is used in this work to provide a further rationale and creation of the starting points of the reservoir pressure maintenance system impact at new drilling fields to improve oil recovery and secure sustainable oil production and the reserve development rate under high uncertainty.

scholarly journals FEATURES OF THE STRUCTURE AND OIL AND GAS POTENTIAL OF LOWER CRETACEOUS AND UPPER JURASSIC SEDIMENTS IN WESTERN AREAS OF WESTERN SIBERIA

2017 ◽  
pp. 25-34
Author(s):  
G. .. Mukher ◽  
S. F. Kulagina ◽  
A. V. Goryachev ◽  
E. A. Pakhomova ◽  
A. A. Gladyshev
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Integrated Approach ◽  
Upper Jurassic ◽  
Geological Structure ◽  
Silty Sand ◽  
Reservoir Rocks ◽  
Bazhenov Horizon ◽  
Gas Potential ◽  
Hydrocarbon Deposits

The features of the geological structure and oil and gas potential of the Bazhenov-Abalak oil and gas complex are discussed. Based on new geological and seismic data, using an integrated approach, the zones of distribution and the boundaries of thinning out of silty sand reservoir rocks of Vogulkinskaya strata were mapped, four traps and two zones (Ourinskaya, Eastern Tolumskaya), which are perspective for hydrocarbon deposits search, were distinguished. In Bazhenov horizon, the zones of development of anomalous sections and bituminous sediments were mapped, laying above Bazhenov formation, which are perspective for hydrocarbon deposits search. Recommendations for further exploration are given.

scholarly journals Methodological approaches to increasing the flooding system efficiency at the later stage of reservoir development

2021 ◽  
pp. 161-171
Author(s):  
V. A. Grishchenko ◽  
◽  
I. M. Tsiklis ◽  
V. Sh. Mukhametshin ◽  
R. F. Yakupov ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Geological Structure ◽  
Oil Fields ◽  
Lower Carboniferous ◽  
Field Development ◽  
Reservoir Development ◽  
Recovery Techniques ◽  
Efficiency Cost ◽  
Methodological Approaches

Based on the analysis of the efficiency of CVI.1 and CVI.2 oil reservoirs development, which partially coincide in structural terms, and the terrigenous strata of the Lower Carboniferous of one of Volga-Ural oil and gas province oil fields, an algorithm for assessing the efficiency of waterflooding was proposed, which takes into account the geological structure of the facility, the results of core and geophysical well surveys, as well as the historical performance of wells. The presented algorithm makes it possible to identify ineffective injection directions for making decisions on waterflooding system optimizing. The effect is the identified potential to cut costs by reducing inefficient injection, as well as identifying areas for the introduction of enhanced oil recovery techniques. Keywords: field development; reservoir pressure maintenance system; waterflooding efficiency; cost reduction.

scholarly journals The features of the geological structure of the Verkhnechonsky oil and gas condensate field and their influence on the field development and operation system

2020 ◽  
Vol 43 (3) ◽  
pp. 350-363
Author(s):  
L. A. Rapatskaya
Keyword(s):  
Oil And Gas ◽  
Horizontal Wells ◽  
Geological Structure ◽  
Field Structure ◽  
Gas Condensate ◽  
Reservoir Properties ◽  
Reservoir Water ◽  
Horizontal Drilling ◽  
Development System ◽  
Field Development

The study aims to analyze the relationship between the redetermination of the complexity of the geological structure of the Verkhnechonsky oil and gas condensate field and the schedule adjustment of the field development plans. The paper uses the data on the exploration and production wells obtained from the pilot operation of JSC Verkhnechonskneftegaz, the geophysical work results, and the research materials publicly available in the press. The geological structure of the Verhnechonskoye oil and gas condensate field is unique in its complexity. This is due to the following factors: a combination of tectonic disturbances accompanied by the intrusion of traps; high mineralization of the reservoir water; sharp variability of the filtration and reservoir properties of the producing horizons by area and section due to the unevenness of the lithological composition of the reservoirs, their salinization and complete pinch-out. The development system of any field should take into account the peculiarities of the field’s tectonic and lithological-facies structure, and meet specific technical and economic requirements for drilling and operating wells. The complexity of the field structure requires a thorough selection of a development system that inevitably changes as the features of the field structure are studied, e.g. vertical drilling suggested at the initial stage of the filed development was shortly after replaced with inclined-horizontal drilling with the calculation of two options. Within the pilot operation project of the Verkhnechonsky field, JSC Verkhnechonskneftegaz has developed two variants of uniform grids of directional and horizontal wells with pattern flooding for the most explored deposits of the Verkhnechonsky horizon of blocks I and II. Because of the intensive processes of the reservoirs’ secondary salinization, the flooding method required a study of the reservoir water composition. However, the proposed drilling plan using a downhole engine and gamma-ray logging could not ensure the wellbores ducting through the most productive sections of the horizon, therefore, the flow rates of some directional and horizontal wells were not high enough. To increase the drilling efficiency, the specialists of the Drilling Department (JSC Verhnechonskneftegaz), together with the Department of Geology and Field Development (Schlumberger Ltd.), proposed a new methodology that increases the drilling efficiency by using a rotary-controlled system, logging-while-drilling, and geosteering. Thus, the development system of the Verkhnechonsky oils and gas condensate field was changing in the process of specifying the field’s geological structure, anisotropy reservoir properties, and the thickness of the producing horizons in size and cut, their salinization and pinch-out, and the composition of the reservoir waters.

scholarly journals Improvement of oil and gas field development technology

2021 ◽  
Vol 1 (79) ◽  
pp. 76-80
Author(s):  
B. M. Nuranbayeva ◽  
◽  
E. S. Oryngozhin ◽  
D. R. Alaguzov ◽  
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Gas Field ◽  
Field Development ◽  
Oil Reserves ◽  
Original Volume ◽  
Stage Of Development ◽  
Development Technology ◽  
Oil And Gas Field ◽  
Last Stage

During the period of depletion of the main oil reserves in fields entering the last stage of development due to the priority development of highly productive highly permeable reservoirs, an increasing proportion of residual reserves become difficult to recover.Therefore, it becomes relevant to use effective methods of increasing oil recovery in existing fields, most of the original volume of geological reserves remains in the deposits. One of these methods is unsteady waterflooding, which has proven its effectiveness in a number of fields.

scholarly journals THE IDENTIFICATION OF THE PRODUCTIVE STRATA WITHIN TYNIV-HRUSHIV OIL AND GAS FIELD

2019 ◽  
pp. 26-31
Author(s):  
D. Fedoryshyn ◽  
I. Bagriy ◽  
A. Trubenko ◽  
S. Fedoryshyn ◽  
N. Khovanets
Keyword(s):  
Oil And Gas ◽  
Geological Structure ◽  
Well Testing ◽  
Key Factors ◽  
Correlation Pattern ◽  
Gas Field ◽  
Reservoir Rocks ◽  
Oil And Gas Field ◽  
Set Up ◽  
Gas Bearing

The findings of the geological and geophysical researches reveal the high prospects of Krukenychi Depression in terms of new deposits discovery. Notably, some productive reservoir rocks have been indentified within the Neogene formations of Tyniv-Hrushiv Oil and Gas Field. The major gas capacity is associated with the lower Dashava deposits; that is supported by considerable well rates which were apparent within previously discovered fields. According to the readings of the geophysical well logging, the correlation pattern of prospective strata distribution has been introduced; as a followup, it has been determined what the fluid content is within the lower Dashava age. Consequently, just over the gas-bearing reservoir rocks, the waterbearing strata have been located. The geological structure of the lower Dashava age is featured by the two-meter unit of claystones and siltstones which separate the water-bearing strata from the productive ones. The very feature of the geological structure causes the encroachment of productive horizons; that is proved by the well testing results. The more thorough researches help to define the key factors which influence the distribution of the sand material through the section of the Sarmatian age. Furthermore, it is possible to set up a water and gas ratio within the productive strata.

Increasing Reservoir Productivity at Yuzhno Vyintoyskoye Field, Western Siberia

2021 ◽  
Author(s):  
Marat Dulkarnaev ◽  
Nadir Husein ◽  
Evgeny Malyavko ◽  
Vladimir Liss ◽  
Viacheslav Bolshakov ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Western Siberia ◽  
Oil And Gas ◽  
Flow Simulation ◽  
Horizontal Wells ◽  
Oil And Gas Industry ◽  
Economic Conditions ◽  
Gas Industry ◽  
Field Development ◽  
The One

Abstract The new economic conditions characterised by the instability in the global oil and gas industry push market players to search for profitable and efficient ways of developing oil and gas deposits. One of the key opportunities is Enhanced Oil Recovery projects in hard-to-recover reservoirs and formations. When planning the entire scope of development operations, well interventions and surveys, it is important to follow a strategy that would help successfully overcome the geological and engineering challenges facing the operators. In this project, a geological feasibility study of the field development management was conducted with regards to the one formation of the Yuzhno-Vyintoyskoye field based on the data obtained using marker-based production surveillance in horizontal wells and flow simulation.

Using DNA-Logging to Determine Inflow Profile in Horizontal Wells

2021 ◽  
Author(s):  
Arsenii Stanislavovich Posdyshev ◽  
Pavel Vladimirovich Shelyakin ◽  
Nurislam Maratovich Shaikhutdinov ◽  
Aleksey Alekseevich Popov ◽  
Maria Dmitrievna Logacheva ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Horizontal Well ◽  
Oil And Gas ◽  
Saturation Temperature ◽  
Horizontal Wells ◽  
Field Studies ◽  
Sequencing Data ◽  
Gas Field ◽  
Field Development ◽  
Inflow Profile

Abstract The purpose of this work is to adapt and apply Next Generation Sequencing methods in oil and gas well field studies. Relatively recent NGS methods provide a description of a geological formation by analyzing millions of DNA sequences and represent an entirely new way to obtain information about oil and gas reservoirs and the composition of their fluids, which could significantly change the approach to exploration and field development. We present the results of pilot work to determine the inflow profile in a horizontal well based on DNA markers. The technology is based on the comparison of bacterial DNA from drill cuttings obtained while drilling with DNA from microorganisms of fluids obtained during production at the wellhead. Because of their high selectivity, individual microbes live only under certain conditions (salinity, oil saturation, temperature) and can be used as unique natural biomarkers. The comparison of DNA samples of drilling cutting and produced fluid allows for identification of the segment of the horizontal well from which the main flow comes, as well as identifying the type of incoming fluid (water, oil, gas) without stopping the operation process and without conducting expensive downhole operations. As a result of these studies, the microbial communities of the oil-bearing sands and formation fluids of the Cretaceous deposits (group BS) in Western Siberia were identified, and the relative numerical ratio of microorganisms in the formations was determined. It was shown that the microbiome diversity changes with depth, and depends on the lithological composition, and sequencing data obtained from cuttings samples correlate with data from wellhead samples of produced fluid. Thus, the practical applicability of DNA sequencing for solving field problems in oil and gas field development, in particular for determining the inflow profile in horizontal wells, was confirmed.

Study on the Characteristics of Well Completion Technology in Deepwater Oil and Gas Field Development

2021 ◽  
Vol 3 (8) ◽  
pp. 70-72
Author(s):  
Jianbo Hu ◽  
◽  
Yifeng Di ◽  
Qisheng Tang ◽  
Ren Wen ◽  
...  
Keyword(s):  
Deep Water ◽  
Deep Sea ◽  
Oil And Gas ◽  
Gas Field ◽  
Marine Research ◽  
Field Development ◽  
Research Technology ◽  
Well Completion ◽  
Development Capacity ◽  
Exploration And Development

In recent years, China has made certain achievements in shallow sea petroleum geological exploration and development, but the exploration of deep water areas is still in the initial stage, and the water depth in the South China Sea is generally 500 to 2000 meters, which is a deep water operation area. Although China has made some progress in the field of deep-water development of petroleum technology research, but compared with the international advanced countries in marine science and technology, there is a large gap, in the international competition is at a disadvantage, marine research technology and equipment is relatively backward, deep-sea resources exploration and development capacity is insufficient, high-end technology to foreign dependence. In order to better develop China's deep-sea oil and gas resources, it is necessary to strengthen the development of drilling and completion technology in the oil industry drilling engineering. This paper briefly describes the research overview, technical difficulties, design principles and main contents of the completion technology in deepwater drilling and completion engineering. It is expected to have some significance for the development of deepwater oil and gas fields in China.

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