scholarly journals Effect of Effective Pressure on the Permeability of Rocks Based on Well Testing Results

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2306
Author(s):  
Evgenii Vasilevich Kozhevnikov ◽  
Mikhail Sergeevich Turbakov ◽  
Evgenii Pavlovich Riabokon ◽  
Vladimir Valerevich Poplygin
Keyword(s):  
Oil And Gas ◽  
Oil Fields ◽  
Well Testing ◽  
Effective Pressure ◽  
Field Development ◽  
The North ◽  
Oil And Gas Fields ◽  
Gas Fields ◽  
Perm Region ◽  
Pressure Analysis

During the development of oil and gas fields, the permeability of the reservoirs decreases due to a decrease in reservoir pressure and an increase in effective pressure, as a result of which significant reserves of oil and gas remain in the reservoir. To predict the rate of decrease in oil production rates during field development and to respond quickly, it is necessary to know the law of permeability decrease with an increase in effective pressure. Existing methods for describing the change in the permeability of rocks were analyzed in the paper. Numerical analysis of the results of core studies from previously published papers and the results of field well testing on the examples of the north Perm region oil fields showed that in both cases, regardless of the type of rock and the type of reservoir, the change in permeability can be described by the same equations (exponential and power-law). Obtained equations can be used to predict changes in the permeability of terrigenous reservoirs of the north Perm region oil fields. At the same time, according to the results of well testing, an intensive decrease in permeability is observed with an increase in effective pressure. Analysis of the nature of permeability changes using the Two-Part Hooke’s Model showed that significant irreversible deformations are currently taking place in the formations of the oil fields under consideration. Predicting the change in permeability from effective pressure can allow to optimize the development of oil deposits.

CANNING BASIN AND GLOBAL PALAEOZOIC PETROLEUM SYSTEMS—A REVIEW

2005 ◽  
Vol 45 (1) ◽  
pp. 349 ◽  
Author(s):  
G.M. Carlsen ◽  
K. Ameed R. Ghori
Keyword(s):  
North America ◽  
North American ◽  
Oil And Gas ◽  
Oil Fields ◽  
North African ◽  
Canning Basin ◽  
Petroleum Systems ◽  
The North ◽  
Oil And Gas Fields ◽  
Gas Fields

There are more than 131 giant and super-giant oil and gas fields with Palaeozoic source and reservoir that are similar to the Canning Basin. These include Palaeozoic basins of North America, North Africa, and the North Caspian Basin of Kazakhstan and Russia.The productivity of these Palaeozoic petroleum systems depends on timing of generation and preservation of charge. Thick Ordovician, Permian, and Triassic evaporite deposits played a very important role in creating and preserving the North American, north Caspian, and north African giant oil and gas fields, respectively.The Mesozoic–Tertiary charged Palaeozoic systems are typically more productive than the Palaeozoic charged systems as exemplified by the north African basins.The Ordovician sourced and reservoired giant oil fields of the North American Mid-Continent are also highly productive. Within the Canning Basin, Ordovician sourced oil has been recovered on the Barbwire Terrace (in Dodonea–1, Percival–1 and Solanum–1) on the Dampier Terrace (in Edgar Range–1 and Pictor–1) and along the Admiral Bay Fault Zone (in Cudalgarra–1, Great Sandy–1, and Leo–1).The Canning Basin may be the least explored of the known Palaeozoic basins with proven petroleum systems. The Palaeozoic basins of North America are the most explored with 500-wells/10,000 km2 compared to the Canning Basin with only 4-wells/10,000 km2.The presence of five oil fields, numerous oil and gas shows and the well density in the Canning Basin (200 wells in 530,000 km2) suggests that further exploration is warranted. Critical analysis of the distribution of source rock, reservoir, seal, timing of generation versus trap formation and post accumulation modification for each tectonic unit of the Canning Basin is required.

Roads, Pads, and Access Along Gravel Free Pipeline Routes

2008 ◽  
Author(s):  
Rupert G. Tart
Keyword(s):  
Oil And Gas ◽  
Thermal State ◽  
Oil Fields ◽  
Yamal Peninsula ◽  
Ural Mountains ◽  
Fine Grained ◽  
The North ◽  
Oil And Gas Fields ◽  
North American Arctic ◽  
Gas Fields

In many of the major oil and gas fields in the North American Arctic, gravel is abundant and close to the production fields and the pipeline routes. In many other Arctic areas in Europe and Asia, gravel is almost non-existent. As new fields are being developed, gravel free areas are being encountered in more areas such as the National Petroleum Reserve Alaska (NPRA) and many of the Russian oil fields west and east of the Ural Mountains and into the Yamal Peninsula. Without free draining gravel, access and development of these new fields becomes more costly, more schedule sensitive, and more complicated. This paper looks at options for roads, pads, and access for developing the oil fields and building and operating the pipelines in areas where gravel deposits are sparse. Some of the options that are discussed and evaluated are using: 1. Additives to increase the strength of available fine-grained materials. 2. Ice and snow pads and roads. 3. Seasonal scheduling of construction. 4. Various road and pad surfacing options including: a) Year-around ice pads, b) Concrete pads and pavements, and c) Mats constructed of various materials. 5. Dredging and draining to obtain available sandy materials from waterways. 6. Geofabrics to contain ice rich materials placed in winter. 7. Methods for maintaining the thermal state of winter placed embankment.

Waste Мanagement of Oil and Gas Fields

2021 ◽  
Vol 25 (11) ◽  
pp. 4-11
Author(s):  
K.L. Chertes ◽  
O.V. Tupitsyna ◽  
V.N. Pystin ◽  
G.G. Gilaev ◽  
N.I. Shestakov ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Oil Fields ◽  
Secondary Products ◽  
Large Capacity ◽  
Oil And Gas Fields ◽  
Gas Fields

The features of maintaining large-capacity waste from oil and gas fields that are suitable for recycling into secondary products are considered. A step-by-step system for selecting and justifying a waste is proposed taking into account the development of the deposit, its natural and manmade features, as well as the selected stages of operation. Pieces of technological schemes of waste preparation are given, as well as the design of the waste preparation complex for disposal constructed at one of the largest oil fields of the Samara region.

Diagnostic Results of Current Distribution Injected Water Flow in the Productive Formation for Neft Dashlary Oilfield

2021 ◽  
Author(s):  
Khidir Mansum Ibragimov ◽  
Nahide Ismat Huseinova ◽  
Aliabas Alipasha Gadzhiev
Keyword(s):  
Current Distribution ◽  
Oil And Gas ◽  
Experimental Studies ◽  
Oil Field ◽  
Fluid Distribution ◽  
Field Development ◽  
Hydrodynamic Parameters ◽  
Oil And Gas Fields ◽  
Oil Field Development ◽  
Gas Fields

Abstract For controlling the oil field development proposed an economically efficient express calculation and visualization method of the hydrodynamic parameters current values distribution in the productive formation. The presented report shows the results of applying this technique for determining the injected water propagation direction into the productive formation (X horizon) at the «Neft Dashlary» field. Based on the calculated results, the current distribution of the injected water was visualized in the selected section of the formation. High accuracy of the calculation was confirmed by comparing obtained results with the results of a simultaneous tracer study conducted in the field conditions. During tracer studies it was tested a new tracer material, more effective than its analogs. According to laboratory and experimental studies, the addition of 0.003% of this indicator substance to the volume of injected water is the optimal amount for its recognition in the well's product. At the allocated area of the "Neft Dashlari" field, the benefits from the use of the calculation method amounted to 62.9 thousand manats. Based on the obtained satisfying results of the new method for calculating hydrodynamic parameters and the use of a tracer indicator application at the «Neft Dashlary» oilfield, it is recommended to apply these developments in other oil and gas fields for mass diagnostic of the reservoir fluid distribution in a selected area of productive formations.

scholarly journals GEO-ENVIRONMENTAL FEATURES OF HYDROCARBON FIELD DEVELOPMENT IN THE BLACK SEA-CASPIAN REGION

2021 ◽  
Author(s):  
A.K. Akhmadiev ◽  
◽  
V.N. Ekzaryan
Keyword(s):  
Black Sea ◽  
Oil And Gas ◽  
Oil Pollution ◽  
The Black Sea ◽  
Caspian Region ◽  
Negative Consequences ◽  
Field Development ◽  
Environmental Features ◽  
Oil And Gas Fields ◽  
Gas Fields

The paper notes that the hydrocarbon potential of the Black Sea-Caspian region is not exhausted, and therefore the development of its resources is intensifying. The exploitation of oil and gas fields is closely associated with negative consequences for theenvironment. Therefore, the geo-environmental features of the area must be studied and taken into consideration. In relation to the Black Sea-Caspian region the authors have identified and described such features as: the diversity of geopolitical, regional-geological, geographical conditions; the factor of stability of the geological environment; oil pollution of the marine environment and the organization of monitoring of oil pollution.

scholarly journals THE ISSUE OF APPLICATION OF PHYSICAL AND CHEMICAL TECHNOLOGIES IN THE DEVELOPMENT OF OIL AND GAS FIELDS

2016 ◽  
pp. 71-74
Author(s):  
E. F. Zakharova ◽  
E. V. Levanova ◽  
G. N. Farkhutdinov
Keyword(s):  
Oil And Gas ◽  
High Water ◽  
Oil Fields ◽  
Chemical Methods ◽  
Oil And Gas Fields ◽  
Extraction Factor ◽  
High Water Cut ◽  
Water Cut ◽  
Gas Fields ◽  
Physical And Chemical

The efficiency of different physical and chemical technologies used in various areas and Romashkinskoye New-Elkhovskoye oil fields was researched. The result was a conclusion that at high water-cut objects, restriction of movement of water in highly permeable leached zones of a productive layer is one of the main conditions for increasing the efficiency of not only flooding, but also the use of physical and chemical methods based on improving of oil extraction factor.

scholarly journals Improve The Efficiency Of The Study Of Complex Reservoirs And Hydrocarbon Deposits - East Baghdad Field

2020 ◽  
Author(s):  
Sudad H Al-Obaidi
Keyword(s):  
Oil And Gas ◽  
Water Saturation ◽  
Well Logging ◽  
Well Testing ◽  
Petrophysical Parameters ◽  
Oil And Gas Fields ◽  
Hydrocarbon Fields ◽  
Gas Fields ◽  
Hydrocarbon Deposits

Practical value of this work consists in increasing the efficiency of exploration for oil and gas fields in Eastern Baghdad by optimizing and reducing the complex of well logging, coring, sampling and well testing of the formation beds and computerizing the data of interpretation to ensure the required accuracy and reliability of the determination of petrophysical parameters that will clarify and increase proven reserves of hydrocarbon fields in Eastern Baghdad. In order to calculate the most accurate water saturation values for each interval of Zubair formation, a specific modified form of Archie equation corresponding to this formation was developed.

scholarly journals Designing problems of oil fields infrustructre in the Arctic under the climate change

2021 ◽  
Vol 6 (3) ◽  
pp. 130-135
Author(s):  
Elena A. Poskonina ◽  
Anna N. Kurchatova
Keyword(s):  
Climate Change ◽  
Oil And Gas ◽  
Thermal Stabilization ◽  
Oil Fields ◽  
The Arctic ◽  
Soil Conditions ◽  
Industrial Facilities ◽  
Oil And Gas Fields ◽  
Gas Fields ◽  
Forecast Modeling

Background. Designing problems of oil fields infrastructure in the Arctic under climate change, namely, applying of temperature coefficient when calculating bearing capacity, heaving of lightly loaded foundations, optimization of thermal stabilization solutions are presented in the article. Aim. To change the strategy for designing foundations on permafrost by choosing the worst soil conditions to the implementation of an invariant matrix for designing and construction of soil bases and foundations considering specifics of industrial facilities of oil and gas fields based on unified numerical calculations (regulations). Materials and methods. An overview of the current regulatory requirements to the design of foundations on permafrost is made. The analysis of forecast modeling of the temperature of soil bases of typical industrial facilities of oil and gas fields to justify design solutions and also the use of thermal stabilization systems is done. Results. It is proposed to develop a regional directory of weather stations with long observation period based on updated climate data to decrease the volume of designing work and the amount of mistakes in applying of thermal stabilization systems. It is necessary to create regional dynamic models of permafrost geosystems, implement forecast modeling of seasonal thawing potential depth and frozen ground temperature in natural landscapes on the base of geotechnical monitoring data and select adaptation methods to existing or expecting climate change trends. Conclusions. Regulations on designing and construction of soil bases and foundations on permafrost considering specifics of industrial facilities of oil and gas fields is an effective solution. It allows moving on the strategy implementation of uniform approaches to oil fields development on permafrost: from designing for every structure on the base of typical solutions and results of engineering surveys to invariant matrix of project solutions.

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