{"title":"COMPUTATIONAL AND EXPERIMENTAL STUDY OF THE STRESS-STRAIN STATE OF A PIPE UNDER EXTERNAL RADIAL LOAD, INTERNAL PRESSURE AND TEMPERATURE DIFFERENCE","authors":"A. A. Ignatik","doi":"10.17122/ntj-oil-2024-3-120-135","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-120-135","url":null,"abstract":"Oil and gas pipelines are subjected to complex of loads and impacts during operation. The purpose of this article is an experimental assessment of the stress-strain state of a pipe under the action of external radial force on a laboratory bench by the strain gauge method, as well as a computational and experimental assessment of the stress-strain state under the combined action of radial force, internal pressure and temperature difference. Accounting for internal pressure and temperature difference (other factors affecting the pipeline) is carried out using well-known theoretical formulas which are confirmed by practice. The total stresses from the effects of several factors of influence are determined due to the principle of superposition.Experimental and computational studies of the stress-strain state of the pipe cross section under the influence of external radial force corresponding to the pipe deflection from 0 to 8 mm; internal pressure from 0 to 14 MPa; temperature difference from minus 60 C to 60 C have been carried out. Graphs of the dependence of maximum stresses on the factors of influence are constructed. Empirical formulas have been obtained for calculating the maximum equivalent von Mises stress of the cross-section of the pipe with a diameter of 325 mm under various loading options, they are necessary to assess the strength of the pipeline structure.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"82 S358","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V.A. Ivanov, N.A. Borisov, M.N. Chekardovskij, A.B. Shabarov, T. Ponomareva
{"title":"FEATURES OF CALCULATING LONGITUDINAL DISPLACEMENTS OF PIPELINES LAID IN HETEROGENEOUS SOILS","authors":"V.A. Ivanov, N.A. Borisov, M.N. Chekardovskij, A.B. Shabarov, T. Ponomareva","doi":"10.17122/ntj-oil-2024-3-174-182","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-174-182","url":null,"abstract":"Achieving and maintaining the required reliability of the linear part of the main gas pipelines is of particular importance. Emergency destruction usually leads to large gas leaks into the atmosphere and undersupply to consumers, significant costs for the restoration of main gas pipelines. The difficulty and cost of carrying out repairs of main gas pipelines directly depends on the difficult conditions of the route and special technical solutions are needed to achieve the stability and reliability of pipelines on low-bearing soils. Thus, on existing gas pipelines, their longitudinal movements occur under the action of longitudinal forces, which leads to an increase in the stress state of gas pipelines and even the destruction of pipes. The significant time duration of the increase in gas pipeline movements indicates that these movements occur due to the rheological properties of soils. An analysis of the stress state of such sections of gas pipelines is necessary to assess their reliability, timing and methods of repair. ","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"127 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Z. Denislamov, A.I. Bakhtegareev, B.R. Fayzullin
{"title":"PRESSURE САLCULATION OF THE FIRST DIFFERENTIAL SEPARATION STAGE OF GAS FROM RESERVOIR OIL","authors":"I. Z. Denislamov, A.I. Bakhtegareev, B.R. Fayzullin","doi":"10.17122/ntj-oil-2024-3-54-62","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-54-62","url":null,"abstract":"The multistage separation of associated gas from reservoir oil is based on a gradual decrease in pressure and sequential selection of light components into the gas pipeline. The final tasks of the separation process are: the pressure at the first stage and the quality of commercial oil according to the pressure of saturated oil vapor. The separation of phases of borehole products is performed by material balance method, first in molar terms, then in mass terms. The thermobaric conditions for the oil and gas separation stages are selected based on the production need for heating the oil-water emulsion and stabilizing the oil at the final stage of the technological process of the final product treatment.The article considers the features of differential separation, proposes a method for express pressure evaluation at the first separation stage and reveals a linear relationship between this parameter and the methane content in reservoir oil for a sample of 41 oil production facilities. The issues of assessing of degassed oil stability after multistage separation are considered.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"59 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. V. Yadrin, Yu.B. Lind, A.S. Geraskin, A.F. Galiev
{"title":"TECHNOLOGICAL SOLUTIONS FOR DRILLING USING FLEXIBLE TUBING – UP-TO-DATE WORLD EXPERIENCE AND PROSPECTS FOR RUSSIA","authors":"V. V. Yadrin, Yu.B. Lind, A.S. Geraskin, A.F. Galiev","doi":"10.17122/ntj-oil-2024-3-9-21","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-9-21","url":null,"abstract":"The article presents an analytical review of modern technologies for using flexible tubing to perform complex technological operations aimed at increasing oil recovery, exploration and repair of wells, and construction of lateral and horizontal wellbores. The authors have been most interested in the technology of underbalanced coiled tubing drilling, since it has the potential to increase oil production while maintaining or minimizing drilling costs without drilling complications while ensuring operational safety.The experience of a foreign company in coiled tubing drilling is reviewed, positive results and growth points are highlighted. Solutions for the implementation of coiled tubing drilling in Russian conditions are proposed to reduce the costs of constructing horizontal wells and additional hydrocarbon production during the drilling process. Preparatory work is underway to conduct pilot-industrial research of the proposed technology.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"75 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANALYSIS OF TECHNOLOGIES FOR COLLARING LARGE-DIAMETER SECTIONS OF OIL AND GAS WELLS","authors":"R.R. Valitov, Yu.B. Lind","doi":"10.17122/ntj-oil-2024-3-22-31","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-22-31","url":null,"abstract":"The article considers issues on construction of deep oil and gas multi-column wells with an extended trunk. Drilling of such wells is relevant, for example, on offshore fields, where drilling from the shore with a vertical deviation of over 1000 m is much more economically feasible than from floating vehicles.For drilling wells with an extended trunk and passing through zones incompatible with drilling for geological reasons, it is necessary to begin construction of a well with landing a large diameter direction – often up to 720 mm. The article analyzes the emerging problems and ways to solve them by drilling large-diameter wells and landing casing string. The results of practical experience in conducting work in the Pechora Sea and at the Astrakhan gas condensate field are summarized, on the basis of which recommendations for carrying out similar works are given.When constructing wells, especially starting with a large diameter, it is not always possible to drill a well efficiently, even with drilling equipment ideally suited to specific geological and technological conditions. And this, in turn, can lead to losses of production time and materials, and in the extreme case – to emergency works. Based on the analysis carried out, the article proposes an algorithm of technological operations for drilling wells and landing large diameter directions, which increases the probability of successful drilling to the design depth.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"210 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141681302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DEVELOPMENT AND TESTING OF A MODULE FOR CALCULATING THE PARAMETERS OF SCALE INHIBITORS SQUEEZE TREATMENT","authors":"I.V. Valekzhanin, A. Voloshin","doi":"10.17122/ntj-oil-2024-3-43-53","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-43-53","url":null,"abstract":"Inorganic scale (salt) deposition in the oil and gas industry is a serious and widespread problem that requires timely measures for effective control and management. The process of formation and deposition of mineral salts depends on a large number of changing factors, which creates additional difficulties for predicting and controlling scale formation processes. The fields of Eastern Siberia, the formation waters of which belong to the category of brines with a mineralization of 250 g/l and more (in some cases more than 600 g/l), are characterized by the scale formation of complex composition (sulfate, carbonate and chloride salts). Scale deposits can occur in the near-wellbore zone of the formation, which can lead to a significant decrease in the productivity of production wells. Many fields in Eastern Siberia have a number of features that complicate their operation. Among them are low reservoir temperature (10–14 °C), reservoir pressure close to the saturation pressure and salinity (halitization) of the reservoir. In the practice of the global oil and gas industry, it has been repeatedly proven that the implementation of technologies to prevent scale deposits is much more technologically and economically efficient than removing already formed sediments. In this regard, the use of scale inhibitors (SI) is one of the key methods to combat the formation of salts. When scale deposits lead to disruption of the operation of submersible well equipment, technologies for continuous or periodic dosing of SI into the annulus of the well can be effective. To protect the bottomhole zone of the formation from scale deposits, the priority technology should be the injection of scale inhibitors or squeeze treatment into the formation under pressure.In this work, based on a set of laboratory filtration experiments, a module has been developed that allows calculating the volumes of scale inhibitor and process fluids required for SI squeeze into the reservoir. The successful results of two operations of SI squeeze into the formation of horizontal wells for protection against deposits of sulfate salts are shown.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":" 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141680575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANALYSIS AND CREATION OF NEW ENERGY-SAVING DESIGNS OF INSTALLATIONS FOR ENVIRONMENTALLY COMBUSTION OF LIQUID FUEL IN OIL FACTORY FURNACES USING THE HEAT OF OUTLET COMBUSTION PRODUCTS","authors":"V. D. Katin, A. A. Zhuravlev","doi":"10.17122/ntj-oil-2024-3-183-190","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-183-190","url":null,"abstract":"The article analyzes the installations and methods used at oil refineries for recycling the heat of exhaust flue gases in order to increase the efficiency of fuel use in tube furnaces and accompanying reduction in pollutant emission into the air basin. Recommendations on rational type selection of waste heaters for furnace units of oil refining industries are given.The authors present fundamentally new installations for burning liquid fuel in the form of oil-water emulsions using the heat recovery of emitted combustion products of furnace installations for heating the oil-water emulsion and its further environmentally friendly combustion, i.e. reduction of harmful emissions. The proposedoriginal installations differ from well-known analogues in the novelty of their design, a fairly high environmental effect and relatively low material costs.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"128 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. M. Gennadyeva, S. Z. Kalaeva, O.P. Filippova, V.B. Petropavlovskaya, G.M. Kuznetsova
{"title":"TECHNOLOGY OF WATER TREATMENT FROM OIL PRODUCTS USING MAGNETIC LIQUIDS FROM INDUSTRIAL WASTE","authors":"A. M. Gennadyeva, S. Z. Kalaeva, O.P. Filippova, V.B. Petropavlovskaya, G.M. Kuznetsova","doi":"10.17122/ntj-oil-2024-3-191-203","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-191-203","url":null,"abstract":"This article explores new perspectives on the use of magnetic fluids for efficient water treatment of petroleum products. A review of existing technologies and their limitations is provided, emphasizing the need for new approaches. The use of magnetic fluids that are highly selective to petroleum products is investigated. Experimental results show that the modified magnetic fluids effectively remove petroleum products from water, providing high quality treatment. The study also examines the durability and cost-effectiveness of the proposed approach, suggesting its practical application in water treatment plants. The paper provides a valuable contribution to the water treatment field, opening up new opportunities for effective removal of petroleum products and protection of water resources. Aims of the study are to reduce the concentration of petroleum products in wastewater; to develop an effective technology for wastewater treatment from petroleum products using magnetic fluid. Objectives of the work are to study the composition of iron-containing waste; to consider the technology of wastewater treatment from petroleum products; to study the parameters of wastewater treatment from petroleum products.The objects of the study are industrial iron-containing waste, magnetite obtained from waste, as well as magnetic liquid synthesized on the basis of magnetite and wastewater.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"USAGE OF TECHNICAL MEANS FOR ANNULAR GAS EXTRACTION TO INCREASE OIL WELL PRODUCTION","authors":"A.V. Kokh, A.R. Khafizov","doi":"10.17122/ntj-oil-2024-3-110-119","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-110-119","url":null,"abstract":"In recent years, the technology of annular gas extraction from wells has become increasingly widespread in the fields in order to improve the working conditions of the submersible pump due to increasing its filling and supply coefficients, as well as increasing depression on the formation. Some types of compressor designs have been developed and put into production, allowing the annular gas extraction from wells and forced injection into the pressure line of the well. One of the most well-known types of compressors is a piston pair driven by a piston from a rocking machine balancer. They were used at oil production facilities in the Orenburg, Ulyanovsk Regions, the Republics of Tatarstan and Bashkortostan, Udmurtia and other regions of the Russian Federation.In the fields of Sheshmaoil LLC, a complex for pumping gas from the annulus of a well and pumping it into the COGS product collection system has found mass usage, allowing gas to be taken from a group of wells and reducing pressure in the annulus to values close to 0.1 MPa. Hydraulic piston compressors, in which gas compression occurs using a high-pressure pump that drives the piston group of the compressor, have been tested.One of the main disadvantages of the developed types of compressors is the insufficient volume and pressure of the compressed gas. The article provides an analysis of the technological parameters of the compressors. As a result of research possible solutions to the problem are worked out.To achieve the largest pumping volumes of separated annular gas, the maximum permissible diameter of the compressor cylinder should not exceed 0.07 m in order to prevent significant resistance exerted by the piston rod on the balancer of the pumping machine.The most suitable region for the effective use of suspended compressors is the Ural-Volga Region at fairly depleted oil fields with at least 60–65 % water cut, oil well flow rate of no more than 10–15 tons/day and a gas factor of no more than 15–20 m3/t . At the fields of Western Siberia, suspended compressors cannot be used due to high flow rates and gas factors. Exceptions may be wells with a water cut of at least 80 % and flow rates of no more than 20–25 tons/day.The KOGS compressor unit, developed and widely implemented at Sheshmaoil Management Company LLC, showed positive results, consisting of an increase in flow rate and additional oil production. For further use of the unit in fields, especially for high-viscosity oil production, as well as operation in winter conditions, it is necessary to increase the maximum gas injection pressure.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANALYSIS OF METHODS OF ETHANE PIPELINE TRANSPORTATION","authors":"S. V. Kitaev, R.A. Molchanova, D.I. Melnikov","doi":"10.17122/ntj-oil-2024-3-146-158","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-3-146-158","url":null,"abstract":"The products of hydrocarbon light fractions processing are becoming of great demand. An important component of natural gas is ethane used for high-tech products at gas chemical complexes. Ethane production in situ is a promising direction, with its subsequent transportation to gas and chemical plants. The most economical type of transport is pipeline transportation, providing the construction of a pipeline system including facilities and a linear part. Ethane is a gas that can be transported along isothermal pipelines in both liquid and gaseous states. At the same time, the question of choosing the most rational variant is relevant. The article analyzes possible methods of transporting ethane and ethane fractions along pipelines, consideres variants for pumping gas in a liquid and gaseous states, taking into account the component composition of the product at a specified productivity and initial thermal parameters to summarize recommendations when choosing the most rational method of product transportation. A method is presented for the analytical representation of the dependences of pressure, elasticity, density and viscosity on temperature for the convenient determination of physical properties of multicomponent ethane fractions. The methodological foundations of the thermal and hydraulic analysis of variants for ethane transportation in two phase states – in liquid and gaseous – with the energy efficiency assessment of gas pumping are presented. It is shown that when transporting ethane in a gaseous state, the metal consumption for the pipeline increases twice as compared with the pipeline for transporting the product in a liquid state, while energy consumption also doubles.","PeriodicalId":511822,"journal":{"name":"Problems of Gathering Treatment and Transportation of Oil and Oil Products","volume":"112 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141682844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}