Prediction of Subsidence Over Oil and Gas Fields with Use of Influence Functions (Case Study: South Pars Gas Field, Iran)

2016 ◽  
Vol 41 (2) ◽  
pp. 375-381 ◽  
Author(s):  
M. H. Taherynia ◽  
S. M. Fatemi Aghda ◽  
A. Ghazifard ◽  
E. Moradi
Keyword(s):  
Oil And Gas ◽  
Influence Functions ◽  
Gas Field ◽  
Oil And Gas Fields ◽  
Gas Fields

scholarly journals Use of the program and goal-oriented approach to observe the vertical displacements of the earth’s surface in Russia

2019 ◽  
Vol 91 ◽  
pp. 07023
Author(s):  
Victor Volkov ◽  
Nikita Volkov
Keyword(s):  
High Precision ◽  
Economic Efficiency ◽  
Oil And Gas ◽  
Sufficient Accuracy ◽  
Gas Field ◽  
Oil And Gas Fields ◽  
Vertical Displacements ◽  
Oil And Gas Field ◽  
Gas Fields ◽  
Oriented Approach

The paper considers the problematic issues of the special aspects of solution of the problems of modern geodynamics and technogenic geomechanics in oil and gas fields based on the results of re-levelling. The disadvantages and fundamental errors traditionally made by mining and land surveyors in organizing and performing re-levelling on the territories of oil and gas fields are given. The results of high precision levelling, obtained on the territory of an oil and gas field using the program and goal-oriented approach for its formulation, are presented. The representativeness and sufficient accuracy of obtaining the results of re-levelling allowed us to establish significant speeds of geodynamic and technogenic displacements of the earth’s surface (0.4 - 3.6 mm/year) in the shortest time possible with high economic efficiency.

scholarly journals Well selection in depleted oil and gas fields for a safe CO 2 storage practice: A case study from Malaysia

Petroleum ◽  
2017 ◽  
Vol 3 (1) ◽  
pp. 167-177 ◽  
Author(s):  
Arshad Raza ◽  
Raoof Gholami ◽  
Reza Rezaee ◽  
Chua Han Bing ◽  
Ramasamy Nagarajan ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Fields ◽  
Gas Fields

scholarly journals ECONOMIC EFFICIENCY OF CONSTRUCTION OF CLUSTER OIL TREATMENT SITES IN THE FAR NORTH CONDITIONS

2020 ◽  
Vol 70 (4/2020) ◽  
pp. 95-106
Author(s):  
V. V. Holodkova ◽  
◽  
A. B. Titov ◽  
J. V. Rjabkin ◽  
Keyword(s):  
Development Strategy ◽  
Economic Efficiency ◽  
Oil And Gas ◽  
Cost Savings ◽  
Weather Conditions ◽  
Gas Field ◽  
Innovative Technologies ◽  
Far North ◽  
Oil And Gas Fields ◽  
Gas Fields

The development of oil and gas fields, especially in the Far North, which are caused by complex climatic, geological and geocryological conditions, requires the introduction of innovative technologies. Today, a common option for the development of oil treatment fields is to organize them according to the cluster principle. Providing efficient access to cluster oil treatment is one of the key tasks in the development strategy of the Northern territories of Russia. The article focuses on evaluating the efficiency of the introduction of innovative technologies in the construction of road surfaces in the difficult conditions of the Far North using nanofibrobeton. It is proposed to use a special very light concrete or cellular gas-fiber concrete, which is a dry mixture of non-autoclave production, which is delivered dry to the construction site and only diluted with water directly on site in the volume necessary for a specific operation, after which it is poured into the monolith on the spot. When building access roads when creating an oil and gas field, it is necessary not only to create access roads, but also paths that connect the objects of the field with each other. The use of light concrete in creating access roads, as well as paths that connect the objects of the field with each other, has a number of advantages, especially in terms of low weight and strength. In addition, this coating protects the base from bad weather conditions. This paper presents a comparative calculation of the economic efficiency of using various road construction technologies in these conditions. A detailed overview of the existing tools for evaluation the capital investments, taking into account the time factor, is presented. The specifics of the investment evaluation of the project for the use of nanofibro-concrete for the development of oil and gas fields is a significant service life of the road surface and, consequently, cost savings for current and major repairs.

scholarly journals Ground Deformation Revealed by Sentinel-1 MSBAS-InSAR Time-Series over Karamay Oilfield, China

2019 ◽  
Vol 11 (17) ◽  
pp. 2027 ◽  
Author(s):  
Chengsheng Yang ◽  
Dongxiao Zhang ◽  
Chaoying Zhao ◽  
Bingquan Han ◽  
Ruiqi Sun ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Surface Deformation ◽  
Ground Deformation ◽  
Elastic Half Space ◽  
Dislocation Model ◽  
Oil And Gas Fields ◽  
Subsurface Fluid ◽  
Safety Assessments ◽  
Gas Fields

Fluid extraction or injection into underground reservoirs may cause ground deformation, manifested as subsidence or uplift. Excessive deformation may threaten the infrastructure of the oilfield and its surroundings and may even induce earthquakes. Therefore, the monitoring of surface deformation caused by oil production activities is important for the safe production of oilfields and safety assessments of surrounding infrastructure. Karamay oilfield is one of the major oil and gas fields in China. In this study, we take the Karamay oilfield in Xinjiang as a case study to detect surface deformation caused by subsurface fluid injection. Sentinel-1A images of 32 ascending (Path 114) and 34 descending (Path 165) tracks spanning March 2017 to August 2018, were used to derive vertical and horizontal deformation over Karamay oilfield using the MSBAS-InSAR method. The observed two-dimensional deformation exhibited significant vertical and east-west deformation in this region. The maximum uplift and horizontal velocity was approximately 160 mm/year and 65 mm/year, respectively. We also modeled one of the typical deformation zones using a dislocation model in a homogenous elastic half-space.

scholarly journals The problem of abnormally low formation pressure on the oil and gas fields in Ukraine

2020 ◽  
pp. 17-22
Author(s):  
A. Pokhylko
Keyword(s):  
Pressure Gradient ◽  
Oil And Gas ◽  
Low Pressure ◽  
Formation Pressure ◽  
Gas Field ◽  
Oil And Gas Fields ◽  
Geological Conditions ◽  
Remaining Oil ◽  
Oil And Gas Field ◽  
Gas Fields

The article presented information about specific of geological conditions depleted oil and gas fields, which has Remaining Oil and Gas in Place. The reasons of abnormally low pressure nascency in the deposit has been analyzed. The article presents information about influence of geodynamic processes and structural and tectonics of Earth crust to formation pressure. The information about availability of initial abnormally low formation pressure in Ukrainian Oil and Gas-Condensate fields has been written. Supposition of nascence the abnormally low formation pressure in difficult oil/water/gas saturation geological formation has been analyzed. The drop of pressure in of initial formation has been analyzed and researched. The article presented that drop of pressure gradient in main Ukrainian oil and gas fields is equal to the value of abnormally low formation pressure.The problems of considerable remaining Oil and Gas in with abnormally low pressure in Ukrainian oil and gas field deposit has been analyzed. The information about oil and gas reservoir conditions of depleted field and brown fields in Ukraine has been analyzed.The plot of the formation pressure gradient decreasing for Chornukhynske, Denysivske, Solokhivske, Druzheliubivske, Tymofiivske and Yablunivske fields has been presented. The drop of pressure to abnormally low in Chornukhynske, Denysivske, Solokhivske, Druzheliubivske, Tymofiivske and Yablunivske fields has been established. The problems of drilling and cementing in the well with abnormally low pressure has been describe. Difficult geological conditions in Ukrainian oil and gas field deposit has been analyzed.The article shows the importance to control parameters of all technological liquids, especially density of drilling and cementing liquid in a time of drilling well with abnormally low pressure. The article shows the aspect of the using of lightweight grouting solutions for mounting wells with abnormally low reservoir pressures, the importance of controlling the contamination of the bottom zone of the formation and preventing the occurrence of hydraulic fracturing during cementing.

scholarly journals Modern Political and Economic Aspects of the Oil and Gas Complex in the Southeast Asia Region

2014 ◽  
pp. 54-59
Author(s):  
V. I. Salygin ◽  
S. V. Berezinskiy
Keyword(s):  
Southeast Asia ◽  
Oil And Gas ◽  
American Business ◽  
Gas Field ◽  
Field Development ◽  
Oil And Gas Fields ◽  
Oil And Gas Field ◽  
Offshore Oil And Gas ◽  
Gas Fields ◽  
Offshore Oil

AbstracUThe article reviews the problems caused by the conflict of interests between certain Southeast Asian countries and other states, China foremost, which aroused from oil and gas field development on disputable offshore sections. At the same time the positions of the region's leading transnational corporations in the field of oil and gas policy and their relationships with the countries-ASEAN (Association of South East Asian Nations) members are outlined. Separately are represented the foreign policy stands of Indonesia, Vietnam, Brunei, Philippines and Malaysia on territorial disputes over offshore oil and gas fields. These processes are pushing both European and American business to abandon the conventional schemes and accept the new conditions of their activity in Southeast Asia.

Decision making for modeling of oil and gas fields by using case based reasoning

2019 ◽  
Vol 5 (3) ◽  
pp. 147-163
Author(s):  
Igor N. Glukhikh ◽  
Dmitry V. Nikiforov
Keyword(s):  
Decision Making ◽  
Oil And Gas ◽  
Main Tool ◽  
Engineering Practice ◽  
Case Based Reasoning ◽  
Gas Field ◽  
Field Development ◽  
Oil And Gas Fields ◽  
Gas Fields ◽  
Case Based

This article describes a case-based reasoning (CBR) method as a decision-making tool in modeling oil and gas fields, its existing and potential application in the industry. The main direction for the application of the CBR method is the search for analogous objects for the design of oil and gas field development. The current engineering practice involves a vaguely formalized method of analogies, which does not allow defining the object as much as possible authentically the analogue that does not cause errors. The analogue object serves not only as a source of ready-made near optimal design solutions, but also as additional information about the object of development and key decisions in modeling hydrocarbon fields.<br> This paper considers the CBR method as the main tool for finding analogue objects, the main methods of extracting precedents from the database, and gives an idea of the object of development as a precedent. Proceeding from the peculiarities of presenting the object of development as a precedent and the peculiarities of applying the methods of extracting precedents, the authors have developed the concept of searching for analogue objects. In its implementation, it will allow for a different degree of information content of precedents stored in the database and will accelerate the procedure of extracting precedents from the database. The principal novelty is that the presented conceptual scheme allows using the methods of extracting precedents in the conditions of insufficient input data, which is important for the design of oil and gas fields.

scholarly journals Noise Evaluation in oil and gas Fields and associated risk assessment

2021 ◽  
Author(s):  
Wahid Salem Alzmzam ◽  
Walid Bashir Alfaghi
Keyword(s):  
Risk Assessment ◽  
Oil And Gas ◽  
Sulfur Recovery ◽  
Gas Processing ◽  
Ishikawa Diagram ◽  
Oil And Gas Fields ◽  
Recovery Unit ◽  
Noise Evaluation ◽  
Gas Fields

Abstract This work investigates the level of noise in oil and gas fields and its impact on the health of the operators, visitors, and trainees, as well as controlling noise within acceptable levels in the workplace by proper measurement. Risk assessment is done to identify the associated hazards of particular activities or tasks in the fields. Sulfur recovery unit (SRU) at a gas processing complex is the case study which consists of three production plants.Many master points were randomly selected, where workers are present. Therefore, in order to sufficiently measure the level of noise, the measurement of the noise level was performed in different periods of time within the years 2014-2017 and was compared with OSHA limits. Results show that most of the gathered noise field data were beyond the permissive limits of OSHA (85 dB). Ishikawa Diagram depicts the analysis of cause and effect of over limits readings which are rotating machines, maintenance activities, steam leakages, fluid flow, and gas flaring.Finally, the risk assessment presents that such workplaces may present a high noise risk score that could harm the workers.

scholarly journals Thawing of Permafrost During the Operation of Wells of North-Mukerkamyl Oil and Gas Field

2021 ◽  
Vol 14 (6) ◽  
pp. 795-804
Author(s):  
Mikhail Yu. Filimonov ◽  
◽  
Nataliia A. Vaganova
Keyword(s):  
Oil And Gas ◽  
Frozen Soil ◽  
Design Stage ◽  
Frozen Ground ◽  
Gas Field ◽  
Thermal Fields ◽  
Oil And Gas Fields ◽  
Geological Processes ◽  
Oil And Gas Field ◽  
Gas Fields

Thawing of ice-saturated rocks due to climate change or various technological impacts will be accompanied by subsidence of the earth’s surface and development of dangerous permafrost geological processes called thermokarst, leading to accidents, which may destruct the wells. Currently, the investment programs of the development of new northern oil and gas fields are restricted. In this regard, reducing the cost of developing the oil and gas fields is an urgent problem. For example, diminishing the area of well pads and maintaining efficiency in the northern oil and gas fields can significantly reduce the costs, in particular, during the design stage. A model of unsteady thermal fields propagation in frozen soil from new well construction for the North Mukerkamyl oil and gas field is developed, taking into account the construction features, the annulus, and the complex lithology of the soil surrounding the well. It is planned to take into account climatic and technological factors, in particular, an annual rest period of well operation, which held from several hours to two weeks. The paper discusses the computational features of the thermal fields calculating in frozen ground from wells and explores the influence of various parameters, which in the computations may lead to a significant increasing of thawing area in the well pads

Sign in / Sign up

Export Citation Format

Share Document