Geochemical Monitoring of Formation Fluids for Reservoir Management Considering Complicating Factors in Mature Oilfields

2021 ◽  
Author(s):  
Mariya Sergeevna Shipaeva ◽  
Danis Karlovich Nurgaliev ◽  
Artem Aleksandrivich Zaikin ◽  
Vladislav Anatolevich Sudakov ◽  
Artur Albertovich Shakirov ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
New Technologies ◽  
Produced Water ◽  
Point Of View ◽  
Geochemical Monitoring ◽  
Digital Revolution ◽  
Stage Of Development ◽  
Modern Development ◽  
Geochemical Studies

Abstract At the present stage of the hydrocarbon production process, most of the unique and largest fields in the world are at a late stage of development. Despite the active development and policy of a decarbonised economy, the demand for liquid and gaseous hydrocarbons remains high, while of inevitably growing the number of mature fields. The Volga-Ural oil and gas province today is an old oil and gas producing region, most of the fields have already entered the final stage of development. However, through the introduction and development of new technologies for oil extraction, monitoring of production and localization of reserves, the life of the fields can be extended. One of these technologies is geochemical monitoring of well production. Its goal is to optimize the development of mature fields on the basis of promptly obtained information about the state of the wells using geochemical studies of the formation fluid, allowing timely implementation of the necessary measures. Geochemical studies allow identifying the source of fluid entering the well, determining a violation in the wellbore structure, checking the tightness of downhole equipment for separate operation, and performing an area analysis of the area development efficiency. This type of research is relevant both in giant fields with a large stock of production wells, often characterized from a geological point of view by multilayer structure, with technological complexity, packing, wear of equipment and strings, in some cases the impossibility of running gauge for research, and in fields with low depletion. The possibilities of geochemistry for solving local operational problems in wells are shown. Several hydrogeological complexes have been studied, the change in the properties of the produced water during the development process is described. The concepts of the geochemical conditions in the hydrocarbon deposits that existed earlier are changing due to the development of these objects as a dynamic system, continuous injection of different types of water into the reservoir, the use of enhanced oil recovery methods and other technogenic impact associated with the development of reserves. The digital revolution and the modern development of the industry marked the beginning of the creation of the Digital Atlas of Groundwater, the development of specialized algorithms that allow processing large amounts of data.

Financial and Economic Support of Innovation Processes in the Russian Fuel and Energy Complex

2019 ◽  
Vol 12 (3) ◽  
pp. 77-85
Author(s):  
L. D. Kapranova ◽  
T. V. Pogodina
Keyword(s):  
Oil Recovery ◽  
Large Scale ◽  
Oil And Gas ◽  
New Technologies ◽  
Innovative Development ◽  
Oil Reserves ◽  
Energy Complex ◽  
Innovation Activities ◽  
Substantial Investment ◽  
The Government

The subject of the research is the current state of the fuel and energy complex (FEC) that ensures generation of a significant part of the budget and the innovative development of the economy.The purpose of the research was to establish priority directions for the development of the FEC sectors based on a comprehensive analysis of their innovative and investment activities. The dynamics of investment in the fuel and energy sector are considered. It is noted that large-scale modernization of the fuel and energy complex requires substantial investment and support from the government. The results of the government programs of corporate innovative development are analyzed. The results of the research identified innovative development priorities in the power, oil, gas and coal sectors of the fuel and energy complex. The most promising areas of innovative development in the oil and gas sector are the technologies of enhanced oil recovery; the development of hard-to-recover oil reserves; the production of liquefied natural gas and its transportation. In the power sector, the prospective areas are activities aimed at improving the performance reliability of the national energy systems and the introduction of digital technologies. Based on the research findings, it is concluded that the innovation activities in the fuel and energy complex primarily include the development of new technologies, modernization of the FEC technical base; adoption of state-of-the-art methods of coal mining and oil recovery; creating favorable economic conditions for industrial extraction of hard-to-recover reserves; transition to carbon-free fuel sources and energy carriers that can reduce energy consumption and cost as well as reducing the negative FEC impact on the environment.

The Use of a Sensor Modules System for Measuring Drilling Parameters in a Bit, Significantly Reduces the Construction Time of Wells in Eastern Siberia

2021 ◽  
Author(s):  
Andrey Alexandrovich Rebrikov ◽  
Anton Anatolyevich Koschenkov ◽  
Anastasiya Gennadievna Rakina ◽  
Igor Dmitrievich Kortunov ◽  
Nikita Vladimirovich Koshelev ◽  
...  
Keyword(s):  
Oil And Gas ◽  
New Technologies ◽  
Field Tests ◽  
Depth Of Cut ◽  
Drilling Process ◽  
Eastern Siberia ◽  
Construction Time ◽  
Stage Of Development ◽  
Drilling Parameters ◽  
Pdc Bit

Abstract Currently, production and exploration drilling has entered a stage of development where one of the highest priority goals is to reduce the time for well construction with new technologies and innovations. One of the key components in this aspect is the utilizing of the latest achievements in the design and manufacture of rock cutting tools – drill bits. This article presents some new ideas on methods for identifying different types of vibrations when drilling with PDC bits using a system of sensors installed directly into the bit itself. In the oil and gas fields of Eastern Siberia, one of the main reasons for ineffective drilling with PDC bits are vibrations, which lead to premature wear of the cutting structure of the bit and the achievement of low ROPs in the dolomite and dolerite intervals. For efficient drilling of wells of various trajectories with a bottom hole assembly (BHA), including a downhole motor (PDM) and a PDC bit, special attention is paid to control of the bit by limiting the depth of cut, as well as the level of vibrations that occur during drilling process. Often, the existing complex of surface and BHA equipment fails to identify vibrations that occur directly on the bit, as well as to establish the true cause of their occurrence. Therefore, as an innovative solution to this problem, a system of sensors installed directly into the bit itself is proposed. The use of such a system makes it possible to determine the drilling parameters, differentiated depending on the lithological properties of rocks, leading to an increase in vibration impact. Together with the Operators, tests have been successfully carried out, which have proven the effectiveness of the application of this technology. The data obtained during the field tests made it possible to determine the type and source of vibration very accurately during drilling. In turn, this made it possible to precisely adjust the drilling parameters according to the drilled rocks, to draw up a detailed road map of effective drilling in a specific interval. Correction of drilling parameters based on the analysis of data obtained from sensors installed in the bit made it possible to reduce the resulting wear of the PDC bit cutting structure and, if necessary, make changes to the bit design to improve the technical and economic indicators. Thus, the use of a system of sensors for measuring the drilling parameters in a bit ensured the dynamic stability of the entire BHA at the bottomhole when drilling in rocks of different hardness, significantly reduced the wear of the drilling tools and qualitatively improved the drilling performance.

An Experimental Research on Enhanced Oil Recovery Using Local Polymers

2021 ◽  
Author(s):  
Abiola Oyatobo ◽  
Amalachukwu Muoghalu ◽  
Chinaza Ikeokwu ◽  
Wilson Ekpotu
Keyword(s):  
Enhanced Oil Recovery ◽  
Experimental Research ◽  
Oil Recovery ◽  
Capital Investment ◽  
Oil And Gas ◽  
Produced Water ◽  
Water Injection ◽  
Gum Arabic ◽  
Oil And Gas Industry ◽  
Profile Control

Abstract Ineffective methods of increasing oil recovery have been one of the challenges, whose solutions are constantly sought after in the oil and gas industry as the number of under-produced reservoirs increases daily. Water injection is the most extended technology to increase oil recovery, although excessive water production can pose huge damage ranging from the loss of the well to an increase in cost and capital investment requirement of surface facilities to handle the produced water. To mitigate these challenges and encourage the utilization of local contents, locally produced polymers were used in polymer flooding as an Enhanced Oil Recovery approach to increase the viscosity of the injected fluids for better profile control and reduce cost when compared with foreign polymers as floppan. Hence this experimental research was geared towards increasing the efficiency of oil displacement in sandstone reservoirs using locally sourced polymers in Nigeria and also compared the various polymers for optimum efficiency. Starch, Ewedu, and Gum Arabic were used in flooding an already obtained core samples and comparative analysis of this shows that starch yielded the highest recovery due to higher viscosity value as compared to Ewedu with the lowest mobility ratio to Gum Arabic. Finally, the concentration of Starch or Gum Arabic should be increased for optimum recovery.

scholarly journals Innovative Optical-Sensing Technology for the Online Fouling Characterization of Silicon Carbide Membranes during the Treatment of Oily Water

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1161
Author(s):  
Mehrdad Ebrahimi ◽  
Axel A. Schmidt ◽  
Cagatay Kaplan ◽  
Oliver Schmitz ◽  
Peter Czermak
Keyword(s):  
Silicon Carbide ◽  
Oil Recovery ◽  
Oil And Gas ◽  
Produced Water ◽  
Cross Flow ◽  
Oil And Gas Industry ◽  
Ceramic Membranes ◽  
Transmembrane Pressure ◽  
Sensing Technology ◽  
Water Sensor

The oil and gas industry generates a large volume of contaminated water (produced water) which must be processed to recover oil before discharge. Here, we evaluated the performance and fouling behavior of commercial ceramic silicon carbide membranes in the treatment of oily wastewaters. In this context, microfiltration and ultrafiltration ceramic membranes were used for the separation of oil during the treatment of tank dewatering produced water and oily model solutions, respectively. We also tested a new online oil-in-water sensor (OMD-32) based on the principle of light scattering for the continuous measurement of oil concentrations in order to optimize the main filtration process parameters that determine membrane performance: the transmembrane pressure and cross-flow velocity. Using the OMD-32 sensor, the oil content of the feed, concentrate and permeate streams was measured continuously and fell within the range 0.0–200 parts per million (ppm) with a resolution of 1.0 ppm. The ceramic membranes achieved an oil-recovery efficiency of up to 98% with less than 1.0 ppm residual oil in the permeate stream, meeting environmental regulations for discharge in most areas.

scholarly journals Expansion of oil and gas production and increase environmental risk

2017 ◽  
pp. 7-16
Author(s):  
V. T. Trofimov ◽  
A. V. Nikolaev ◽  
A. D. Zhigalin ◽  
T. A. Baraboshkina ◽  
M. A. Kharkina ◽  
...  
Keyword(s):  
Oil And Gas ◽  
New Technologies ◽  
National Level ◽  
Oil And Gas Industry ◽  
Gas Production ◽  
Point Of View ◽  
Total Probability ◽  
Hydrocarbon Production ◽  
Marginal Seas ◽  
Emergency Situations

Oil and gas industry shows the danger of this kind of industry, including from the environmental point of view. Entering the waters of marginal seas and ocean significantly aggravated the situation, moving a significant part of the emergency situations related to hydrocarbon production, the level of regional and global. The use of new technologies in the production of shale hydrocarbons added new problems - the total probability of contamination of large amounts of geological space highly toxic chemicals. Tracking down of a new perspective mineral energy source - gas hydrates - allows to plan only while possible passing dangers, but shows, that the ecological risk can many times more. For opposition to threat of occurrence of emergencies in connection with growth of extraction of hydrocarbons expediently creation at a national level of special structures of the control and fast reaction. Such structures can be if necessary opened for the international cooperation, and are entered into jurisdiction of the United Nations Organization.

scholarly journals RESEARCH OF THE MECHANISM OF OIL RECOVERY FROM HYDROCARBON DEPOSITS WITH LOW PERMEABILITY RESERVOIRS

2020 ◽  
Vol 17 (34) ◽  
pp. 892-904
Author(s):  
Zinon A KUANGALIEV ◽  
Gulsin S DOSKASIYEVA ◽  
Altynbek S MARDANOV
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
New Technologies ◽  
High Viscosity ◽  
Economic Feasibility ◽  
Oil Field ◽  
Low Permeability ◽  
Low Grade ◽  
Oil Reserves ◽  
Low Permeability Reservoirs

The main part of Russia's hard-to-recover reserves is 73% for low-grade and carbonate reservoirs, 12% for high-viscosity oil, about 15% of extensive sub-gas zones of oil and gas deposits and 7% of reservoirs lying at great depths. The development of such stocks with the usage of traditional technologies is economically inefficient. It requires the application of new technologies for their development and fundamentally new approaches to design, taking into account the features of extraction of hard-to-extract reserves (HtER). The purpose of this research is to find ways to improve the performance of low-permeability reservoirs. To accomplish this task, the Novobogatinsk South-Eastern Oil Field has been taken as an example and described. The necessary properties of production facilities in the field are highlighted, along with economic feasibility and technological efficiency. The reserves involved in the development are determined and, thanks to the knowledge of the geological oil reserves of the deposits, the potential oil recovery factor is calculated with the existing development technology. As a result of the research, development options were worked out with the results of the calculation of design indicators for the field as a whole. The comparison of oil recovery schedules and ORI, as well as the layout of wells, have been presented. As a result of the study, a description of 3 options for the development of design indicators for the field as a whole is given. The figures show oil production graphs, as well as location patterns. The authors of the study conclude which of the recommended development options can help extract maximum oil reserves.

scholarly journals Improving efficiency of oil recovery and finding a source of watering in multi-zone deposits by geochemical methods of research

Georesursy ◽  
2020 ◽  
Vol 22 (4) ◽  
pp. 93-97
Author(s):  
Maria S. Shipaeva ◽  
Ilyas A. Nuriev ◽  
Nikolay V. Evseev ◽  
Timur R. Miftahov ◽  
Vladislav A. Sudakov ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Produced Water ◽  
Element Composition ◽  
Geochemical Composition ◽  
Well Production ◽  
Quantitative Characteristics ◽  
Production Wells ◽  
Macro Element ◽  
Water Cut ◽  
Geochemical Studies

One of the strategic ways in the development of multilayer fields is to identify the source of water inflow into the well production and, as a result, to eliminate it with subsequent optimization of the production of non-watered formations. A method for assessing the degree of water cut in formations based on the quantitative characteristics of the composition of the produced water is proposed in this article. The study of a wide collection of produced water samples made it possible to trace the change in its geochemical composition depending on the age of formation of the reservoir in the Volga-Ural region.The microelements and macro element composition of water, as well as its isotopic composition were investigated. The water of different layers differs in some of the elements, which are called «key elements». Using the methods of mathematical statistics at 2 reservoir objects operated by a common filter, the incoming water was divided into fractions depending on the geochemical composition. It is shown which of the layers has more water out. The feasibility of carrying out these geochemical studies was confirmed by blocking one of the production wells operating in 2 layers, the most watered interval according to geochemical studies, as a result of which the water cut of the well production decreased from an average of 75% to 4% and is observed for several months, the oil production rate increased from 1–2 t/day to 2.5–3 t/day and remains at a constant level.

scholarly journals ANALISIS PENGOLAHAN AIR TERPRODUKSI DI WATER TREATING PLANT PERUSAHAAN EKSPLOITASI MINYAK BUMI (STUDI KASUS: PT XYZ)

2015 ◽  
Vol 12 (2) ◽  
pp. 78
Author(s):  
Pertiwi Andarani ◽  
Arya Rezagama
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
High Efficiency ◽  
Produced Water ◽  
Enhanced Recovery ◽  
Good Condition ◽  
Gas Production ◽  
Energy Company ◽  
Steam Flooding ◽  
Water Handling

The exploration and production process of oil and its supporting operations always generates wasteas by-product. If they are uncontrolled, it might decrease the environmental quality. Thus, it isnecessary to manage and treat the waste in order to meet the regulation standard of quality andquantity. PT XYZ is an energy company, particularly oil and gas production, which its productionactivity generate a large amount of waste as well as produced water. Thus, PT XYZ must havefacilities or produced water handling plant which could minimize pollution caused by produced water.PT XYZ already has a system of produced water handling with recycling principle. After oil and waterseparation including water treating at Water Treating Plant (WTP), produced water will be used forsteam injection. This is the part of enhanced oil recovery by steam flooding in Duri Field. Besides,produced water could be used as backwash water at WTP, that is Oil Removal Filter (ORF) and WaterSoftener, which is called brine water. If the produced water and brine water is over load the capacity ofoil enhanced recovery injection, it might be disposed through injection to Disposal Well and there arecertain condition that produced water should be discharged into canal. The objective f this study is toanalyze the performance of a water treating plant in PT XYZ. Water Treating Plant is a facility fortreating produced water. Basically, WTP is on good condition and each unit has high efficiency forseparating oil and water (60-99%). Horizontal velocity at pit #A of API Separator was larger than thedesign criteria. In addition, Water Softeners have efficiency until 99% for the hardness.

scholarly journals Online Backwash Optimization of Membrane Filtration for Produced Water Treatment

Membranes ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 68 ◽  
Author(s):  
Kasper L. Jepsen ◽  
Mads V. Bram ◽  
Leif Hansen ◽  
Zhenyu Yang ◽  
Steven M. Ø. Lauridsen
Keyword(s):  
Water Treatment ◽  
Membrane Filtration ◽  
Oil And Gas ◽  
New Technologies ◽  
Produced Water ◽  
Removal Rate ◽  
Scheduling Algorithm ◽  
Produced Water Treatment ◽  
Treatment Train ◽  
Offshore Oil And Gas

In the offshore oil and gas sector, produced water is discharged into the sea, but increasing environmental concerns and stricter governmental regulations require new technologies to be considered. Membrane filtration is a promising technology to improve separation, but fouling of the membranes causes a significant reduction in flow capacity. To reduce fouling, optimization of the backwashing parameters is given much attention. Comprehensive and time-consuming experiments are used to model the effect of backwashing, but most methods neglect time varying features present in the offshore produced water treatment train. In this paper, a backwashing scheduling algorithm is proposed, which dynamically selects the filtration and backwashing durations to maximize the average net permeate production. The proposed algorithm is tested on a lab-scaled pilot plant, where it was able to adapt as irreversible fouling accumulated and the OiW concentration changed. The paper concludes that the removal rate of oil fouling was observed to be dependent on the rate at which the backwashing pressure could be established. As the proposed method online adapts to the current conditions, it can improve the filtration capacity compared to cases with constant backwashing and filtration durations throughout the lifetime of the facilities.

Curbing the Climate Footprints of Oil and Gas

2021 ◽  
pp. 95-116
Author(s):  
Deborah Gordon
Keyword(s):  
Oil Recovery ◽  
Carbon Capture ◽  
Oil And Gas ◽  
Produced Water ◽  
Ghg Emissions ◽  
Climate Index ◽  
Supply Side ◽  
Demand Side ◽  
Renewable Electricity ◽  
Mitigation Potential

Chapter 4 lays out real-world solutions from the Oil Climate Index + Gas (OCI+). It argues that demand-side strategies, while necessary, have not been sufficient. An array of supply-side oil and gas strategies are needed to curb global warming. Numerous strategies that mitigate upstream, midstream, and downstream greenhouse gas (GHG) emissions are enumerated, including (1) eliminating routine flaring, (2) using renewable electricity, (3) using only manmade carbon dioxide for enhanced oil recovery, (4) reusing and pumping produced water more efficiently, (5) employing green hydrogen in refining, (6) locking up carbon in noncombustible end uses, (7) sequestering heavy residuals for reclamation and reuse, (8) reducing GHG emissions from liquefied natural gas, (9) decommissioning legacy assets with high GHGs, (10) minimizing fossil fuel inputs, (11) employing leak-free equipment, (12) operating permanent carbon capture, and (13) avoiding operating in sensitive ecosystems. The chapter concludes by presenting the cumulative mitigation potential of supply-side oil and gas strategies that are the responsibility of various actors.

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