NEW CEMENT SLURRIES AND TECHNOLOGIES FOR CEMENTING OIL AND GAS WELLS

Samsonenko N.V. – Candidate of Technical sciences, senior lecturer of the Drilling Department of Oil and Gas wells, National University of Oil and Gas «Gubkin University», nvsamsonenko@rambler.ru nvsamsonenko@rambler.ru

УДК 622.24

Key words: complications of the well cementing process, expanding cement slurries, aerated cement slurry, casing string cementing technology, cement slurries, well casing, dry mixes for cementing oil and gas wells, cross-flow between layers, intercasing pressure, behind-the-casing flow.

Known and new cement powder mixtures used in primary cementing of wells are considered. Well-known cement slurries do not provide the necessary tightness of annular and intercolumn spaces and reliable separation of formations, which leads to various complications, to early watering of oil and gas wells, and to environmental problems. The use of new powdery erosive buffer expanding cement slurries and technologies for their application will eliminate the occurrence of complications of the primary cementing of wells in different mining and geological conditions.

NEW CEMENT SLURRIES AND TECHNOLOGIES FOR CEMENTING OIL AND GAS WELLS

Samsonenko N.V. – Candidate of Technical sciences, senior lecturer of the Drilling Department of Oil and Gas wells, National University of Oil and Gas «Gubkin University», nvsamsonenko@rambler.ru

Key words: complications of the well cementing process, expanding cement slurries, aerated cement slurry, casing string cementing technology, cement slurries, well casing, dry mixes for cementing oil and gas wells, cross-flow between layers, intercasing pressure, behind-the-casing flow.

Known and new cement powder mixtures used in primary cementing of wells are considered. Well-known cement slurries do not provide the necessary tightness of annular and intercolumn spaces and reliable separation of formations, which leads to various complications, to early watering of oil and gas wells, and to environmental problems. The use of new powdery erosive buffer expanding cement slurries and technologies for their application will eliminate the occurrence of complications of the primary cementing of wells in different mining and geological conditions.

 

REUSABLE DEVICE FOR PRESSURE TESTING OF PIPES IN A WELL

Korabelnikov M.I. – Candidate of Technical Sciences, Associate professor of the department «Oil and Gas Business», a branch of the Federal State budget institution of higher education «Tyumen industrial University» in Nizhnevartovsk, korabelnikovmi@mail.ru korabelnikovmi@mail.ru
Ovchinnikov V.P. – Doctor of Technical Sciences, Professor of the Federal State budget institution of higher education «Tyumen industrial University», ovchinnikovvp@tyuiu.ru ovchinnikovvp@tyuiu.ru
Aksenova N.A. – Candidate of Technical Sciences, Associate professor, Director of the branch of the Federal State budget institution of higher education «Tyumen industrial University» in Nizhnevartovsk, na-acs@yandex.ru na-acs@yandex.ru
Lipatov E.Yu. – Candidate of Technical Sciences, Associate professor of the department «Oil and Gas Business», a branch of the Federal State budget institution of higher education «Tyumen industrial University» in Nizhnevartovsk, na-acs@yandex.ru na-acs@yandex.ru

УДК 622.24

Key words: well, pressure testing of pipes, valve of reusable actions, drill pipes, thrown ball, die sleeve.

A new device (valve) has been developed for pressure testing of drill and compressor pipes when descending into a well, drilling a side hole, processing the bottom-hole zone of the formation, repair work, and other technological operations. The valve allows multiple pressure testing of pipes without lifting them. The article shows the scheme of the device and the technology of its operation in the well, as well as the results of factory and field tests of the pilot sample of the valve, which showed its efficiency and feasibility of practical application in technological processes during drilling and operation of wells.

REUSABLE DEVICE FOR PRESSURE TESTING OF PIPES IN A WELL

Korabelnikov M.I. – Candidate of Technical Sciences, Associate professor of the department «Oil and Gas Business», a branch of the Federal State budget institution of higher education «Tyumen industrial University» in Nizhnevartovsk, korabelnikovmi@mail.ru
Ovchinnikov V.P. – Doctor of Technical Sciences, Professor of the Federal State budget institution of higher education «Tyumen industrial University», ovchinnikovvp@tyuiu.ru
Aksenova N.A. – Candidate of Technical Sciences, Associate professor, Director of the branch of the Federal State budget institution of higher education «Tyumen industrial University» in Nizhnevartovsk, na-acs@yandex.ru
Lipatov E.Yu. – Candidate of Technical Sciences, Associate professor of the department «Oil and Gas Business», a branch of the Federal State budget institution of higher education «Tyumen industrial University» in Nizhnevartovsk, na-acs@yandex.ru

Key words: well, pressure testing of pipes, valve of reusable actions, drill pipes, thrown ball, die sleeve.

A new device (valve) has been developed for pressure testing of drill and compressor pipes when descending into a well, drilling a side hole, processing the bottom-hole zone of the formation, repair work, and other technological operations. The valve allows multiple pressure testing of pipes without lifting them. The article shows the scheme of the device and the technology of its operation in the well, as well as the results of factory and field tests of the pilot sample of the valve, which showed its efficiency and feasibility of practical application in technological processes during drilling and operation of wells.

 

ESTIMATION OF THE SURVIVABILITY INDEX OF FLOATING DRILLING RIGS DURING THEIR OPERATION ON THE ARCTIC SHELF

Kharchenko Yu.A. – Doctor of Technical Sciences, Professor, Department of Development of Offshore Oil and Gas fields, National University of Oil and Gas «Gubkin University», doc.2004.8@yandex.ru doc.2004.8@yandex.ru
Kalashnikov P.K. – Candidate of Technical Sciences, Assistant professor, Department of Computer Aided Design of Oil and Gas Industry Facilities, National University of Oil and Gas «Gubkin University», kpk@gubkin.ru kpk@gubkin.ru
Melekhova A.Yu. – undergraduate student, National University of Oil and Gas «Gubkin University», nastya-melehova@mail.ruMelekhova A.Yu. – undergraduate student, Gubkin Russian State University of Oil and Gas (National Research University), nastya-melehova@mail.ru nastya-melehova@mail.ru

УДК 629.5.02+519.876

Key words: : arctic, exploration of offshore hydrocarbon resources, floating drilling rig, deterministic approach, probabilistic analysis, rig survivability, survivability index, event tree, protective barrier, semi-submersible floating rigs, ice resistance, ice conditions, ice conditions, ice control subsystem, physical physics, ice management subsystem, ice management systems, level of safe operation of the installation.

The issue of ensuring the integrated safety of floating drilling rigs (FDR) in the process of developing the Arctic shelf of the Russian Federation is extremely relevant. When designing a control system, possible loads and effects are taken into account using a deterministic approach, while most factors affecting them are probabilistic in nature, and the values of these factors can periodically exceed the accepted design values. A probabilistic approach is proposed in the work, which assumes the calculation of the FDR survivability index from an event tree under the influence of one or another initiating factor. The methodology of the approach is described, the results of calculations are analyzed on the example of the operation of FDR in ice conditions. Such an approach allows one to take into account the multivariance of scenarios of the influence of external factors on the state of the control system, as well as various components of security barriers.

ESTIMATION OF THE SURVIVABILITY INDEX OF FLOATING DRILLING RIGS DURING THEIR OPERATION ON THE ARCTIC SHELF

Kharchenko Yu.A. – Doctor of Technical Sciences, Professor, Department of Development of Offshore Oil and Gas fields, National University of Oil and Gas «Gubkin University», doc.2004.8@yandex.ru
Kalashnikov P.K. – Candidate of Technical Sciences, Assistant professor, Department of Computer Aided Design of Oil and Gas Industry Facilities, National University of Oil and Gas «Gubkin University», kpk@gubkin.ru
Melekhova A.Yu. – undergraduate student, National University of Oil and Gas «Gubkin University», nastya-melehova@mail.ru

Key words: arctic, exploration of offshore hydrocarbon resources, floating drilling rig, deterministic approach, probabilistic analysis, rig survivability, survivability index, event tree, protective barrier, semi-submersible floating rigs, ice resistance, ice conditions, ice conditions, ice control subsystem, physical physics, ice management subsystem, ice management systems, level of safe operation of the installation.

The issue of ensuring the integrated safety of floating drilling rigs (FDR) in the process of developing the Arctic shelf of the Russian Federation is extremely relevant. When designing a control system, possible loads and effects are taken into account using a deterministic approach, while most factors affecting them are probabilistic in nature, and the values of these factors can periodically exceed the accepted design values. A probabilistic approach is proposed in the work, which assumes the calculation of the FDR survivability index from an event tree under the influence of one or another initiating factor. The methodology of the approach is described, the results of calculations are analyzed on the example of the operation of FDR in ice conditions. Such an approach allows one to take into account the multivariance of scenarios of the influence of external factors on the state of the control system, as well as various components of security barriers.

THE INFLUENCE OF THE RHEOLOGICAL AND SURFACE-ACTIVE PROPERTIES OF PROCESS FLUIDS ON THE PERMEABILITY OF THE RESERVOIR

Mazykin S.V. – Deputy General Director, NBS LLC,
mcv@scsbm.ru mcv@scsbm.ru
Belenko E.V. – Scientific Advisor, Service Center SBM LLC, belkub@yandex.ru belkub@yandex.ru
Polischuchenko V.P. – Candidate of Chemical Sciences, Chief Process Engineer, Service Center SBM LLC,
pvp@scsbm.ru pvp@scsbm.ru
Nozdrya V.I. – Candidate of Geological and Mineralogical Sciences, General Director, Research and Production Company Spetsburmaterialy LLC, npk@scsbm.ru npk@scsbm.ru
Berzhets M.S. – Deputy General Director, Service Center SBM LLC,
bms@scsbm.ru bms@scsbm.ru
Berzhets M.S. – Deputy General Director, Service Center SBM LLC, bms@scsbm.ru Mnatsakanov V.A. – Deputy General Director, Gazprom Bureniye LLC, mnacakanov@burgaz.ru mnacakanov@burgaz.ru

УДК 622.24

Key words: drilling fluids, well-killing fluids, rheology, pseudoplastic fluid, periodic colloidal structures, surfactants, Darcy equation, non-linear filtration.

This article is devoted to the generalization of rheological models of the flow of various process fluids used in well construction. Particular attention is paid to pseudoplastic drilling fluids at the stage of drilling of reservoirs. It is shown that when filtering through the capillaries of the collector for pseudoplastic fluids, a deviation from the linear Darcy law is observed, which must be taken into account in core studies.

THE INFLUENCE OF THE RHEOLOGICAL AND SURFACE-ACTIVE PROPERTIES OF PROCESS FLUIDS ON THE PERMEABILITY OF THE RESERVOIR

Mazykin S.V. – Deputy General Director, NBS LLC, mcv@scsbm.ru
Belenko E.V. – Scientific Advisor, Service Center SBM LLC, belkub@yandex.ru
Polischuchenko V.P. – Candidate of Chemical Sciences, Chief Process Engineer, Service Center SBM LLC, pvp@scsbm.ru
Nozdrya V.I. – Candidate of Geological and Mineralogical Sciences, General Director, Research and Production Company Spetsburmaterialy LLC, npk@scsbm.ru
Berzhets M.S. – Deputy General Director, Service Center SBM LLC, bms@scsbm.ru
Mnatsakanov V.A. – Deputy General Director, Gazprom Bureniye LLC, mnacakanov@burgaz.ru

Key words: drilling fluids, well-killing fluids, rheology, pseudoplastic fluid, periodic colloidal structures, surfactants, Darcy equation, non-linear filtration.

This article is devoted to the generalization of rheological models of the flow of various process fluids used in well construction. Particular attention is paid to pseudoplastic drilling fluids at the stage of drilling of reservoirs. It is shown that when filtering through the capillaries of the collector for pseudoplastic fluids, a deviation from the linear Darcy law is observed, which must be taken into account in core studies.

THE DEVELOPMENT OF WELL DRILLING TECHNOLOGIES – IS A KEY DIRECTION IN THE DEVELOPMENT OF THE OIL AND GAS INDUSTRY

Gelfgat M.Ya. – Candidate of Technical sciences, Professor, National University of Oil and Gas «Gubkin University», mikhailgelfgat@gmail.com mikhailgelfgat@gmail.com

УДК 622.24

Key words: drilling technologies, VNIIBT, high-tech well, horizontal drilling, extended-reach drilling, drilling of multilateral and multibranch wells, electric drilling, telemetry information transmission, casing drilling, Managed Pressure Drilling, sliding expanders.

The article is devoted to the development of technologies for drilling oil and gas wells providing the construction of modern wells for the oil and gas industry of the Russian Federation. The relevance of addressing the experience of the USSR in the current conditions of the industry is substantiated.

THE DEVELOPMENT OF WELL DRILLING TECHNOLOGIES – IS A KEY DIRECTION IN THE DEVELOPMENT OF THE OIL AND GAS INDUSTRY

Gelfgat M.Ya. – Candidate of Technical sciences, Professor, National University of Oil and Gas «Gubkin University», mikhailgelfgat@gmail.com

Key words: drilling technologies, VNIIBT, high-tech well, horizontal drilling, extended-reach drilling, drilling of multilateral and multibranch wells, electric drilling, telemetry information transmission, casing drilling, Managed Pressure Drilling, sliding expanders.

The article is devoted to the development of technologies for drilling oil and gas wells providing the construction of modern wells for the oil and gas industry of the Russian Federation. The relevance of addressing the experience of the USSR in the current conditions of the industry is substantiated.

ANALYSIS OF PROPERTIES CHANGE OF CEMENT SLURRY AND STONE UNDER FORMATION IN FROZEN ROCKS

Zimina D.A. – postgraduate student of Saint-Petersburg Mining University, ziminadar@yandex.ru ziminadar@yandex.ru
Dvoynikov M.V. – Doctor of Technical Sciences, Professor, Head of the Department of Well Drilling, St. Petersburg Mining University, dvoinik72@gmail.com dvoinik72@gmail.com
Polyansky S.D. – student of Saint-Petersburg mining university, boamundusrex@gmail.com boamundusrex@gmail.com

УДК 622.245.422

Key words: well casing, cement stone, cementing slurry, microsilica, cement stone strength, porosity, low and negative temperatures, permafrost, thermal field.

It is known that in the permafrost zone, the low interval temperature significantly affects the quality of well casing and can lead to troubles such as thawing of rocks, their refreezing, small cement stone adhesion, and others. Therefore, when choosing the composition of the cement slurry for cementing in the permafrost zone, it is necessary to take into account both technological and thermophysical properties. This paper presents brief information about the conditions for the formation of cementing slurry and cement stone in the range of frozen rocks. The results of a computational experiment to determine the temperature distribution as a function of time taking into account the temperatures of the cementing slurry and displacement fluid are presented. The results of experiments to identify the dependence of changes in the structure of stone on the temperature distribution show that on the side of the heated surface of the cement stone, the porosity decrease, which ensures a decrease in the gas permeability of the well. It is established that the regulation of the structure of the stone in the zone of frozen rocks during its formation under the conditions of alternative thermal fields is possible by using the setting time regulators and microsilica as additives in the mixing fluid.

ANALYSIS OF PROPERTIES CHANGE OF CEMENT SLURRY AND STONE UNDER FORMATION IN FROZEN ROCKS

Zimina D.A. – postgraduate student of Saint-Petersburg Mining University, ziminadar@yandex.ru
Dvoinikov M.V. – Doctor of Technical Sciences, Professor, Head of the Department of Well Drilling, Saint-Petersburg Mining University, dvoinik72@gmail.com
Polyansky S.D. – student of Saint-Petersburg mining university, boamundusrex@gmail.com

Key words: well casing, cement stone, cementing slurry, microsilica, cement stone strength, porosity, low and negative temperatures, permafrost, thermal field.

It is known that in the permafrost zone, the low interval temperature significantly affects the quality of well casing and can lead to troubles such as thawing of rocks, their refreezing, small cement stone adhesion, and others. Therefore, when choosing the composition of the cement slurry for cementing in the permafrost zone, it is necessary to take into account both technological and thermophysical properties. This paper presents brief information about the conditions for the formation of cementing slurry and cement stone in the range of frozen rocks. The results of a computational experiment to determine the temperature distribution as a function of time taking into account the temperatures of the cementing slurry and displacement fluid are presented. The results of experiments to identify the dependence of changes in the structure of stone on the temperature distribution show that on the side of the heated surface of the cement stone, the porosity decrease, which ensures a decrease in the gas permeability of the well. It is established that the regulation of the structure of the stone in the zone of frozen rocks during its formation under the conditions of alternative thermal fields is possible by using the setting time regulators and microsilica as additives in the mixing fluid.

 

SOFTENING OF THE BOREHOLE WALLS IN CLAY-CONTAINING ROCKS

Okolnikov D.V. – graduate student, National University of Oil and Gas «Gubkin University», ok.danil95@mail.ru ok.danil95@mail.ru
Zozulya V.P. – Doctor of Technical Sciences, Professor, Department of Oil and Gas Well Drilling, National University of Oil and Gas «Gubkin University», zozulya.v@gubkin.ru zozulya.v@gubkin.ru

УДК 622.24

Key words: adsorption, osmotic swelling, crystalline swelling, swelling pressure, cavern formation, Mondshine and Kercheville hypothesis, Chenevertt method, montmorillonite, Shubar-Kuduk, clay shale.

The article is devoted to improving the efficiency of completion and development of productive deposits in clay-bearing rocks. The article describes the mechanisms of water adsorption on clay particles, the processes of cavern formation. A special part of the work is devoted to the study of core material from the well number 3 Shubar-Kuduk. In conclusion, recommendations are given in the selection of drilling mud for the completion of clay shale.

SOFTENING OF THE BOREHOLE WALLS IN CLAY-CONTAINING ROCKS

Okolnikov D.V. – graduate student, National University of Oil and Gas «Gubkin University», ok.danil95@mail.ru
Zozulya V.P. – Doctor of Technical Sciences, Professor, Department of Oil and Gas Well Drilling, National University of Oil and Gas «Gubkin University», zozulya.v@gubkin.ru

Key words: adsorption, osmotic swelling, crystalline swelling, swelling pressure, cavern formation, Mondshine and Kercheville hypothesis, Chenevertt method, montmorillonite, Shubar-Kuduk, clay shale.

The article is devoted to improving the efficiency of completion and development of productive deposits in clay-bearing rocks. The article describes the mechanisms of water adsorption on clay particles, the processes of cavern formation. A special part of the work is devoted to the study of core material from the well number 3 Shubar-Kuduk. In conclusion, recommendations are given in the selection of drilling mud for the completion of clay shale.

 

MOBILE UNIFIED ICE-RESISTANT STATIONARY PLATFORM FOR THE CREATION OF SURFACE-UNDERWATER OIL AND GAS FIELD FACILITIES

Mirzoev F.D. Oglu – Head of the laboratory of Offshore Oil and Gas field hydraulic structures, Gazprom VNNIIgaz LLC, oxana-arkhipova@yandex.ru oxana-arkhipova@yandex.ru
Bogatyreva E.V. – Candidate of Technical Sciences, Associate Professor, Deputy Head of the Department of offshore oil and gas fields Development, National University of Oil and Gas «Gubkin University», shelf1998@mail.ru shelf1998@mail.ru

УДК 622.27

Key words: Kara Sea, combined oil and gas field facility, integrated method for developing offshore fields, mobile unified ice-resistant stationary platform.

The article analyzes the degree of technical and technological preparedness for the development of promising fields by Russian industry, and in particular the possibility of developing the Kara Sea deposits by creating a mobile unified ice-resistant stationary platform.

MOBILE UNIFIED ICE-RESISTANT STATIONARY PLATFORM FOR THE CREATION OF SURFACE-UNDERWATER OIL AND GAS FIELD FACILITIES

Mirzoev F.D. Oglu – Head of the laboratory of Offshore Oil and Gas field hydraulic structures, Gazprom VNNIIgaz LLC, oxana-arkhipova@yandex.ru
Bogatyreva E.V. – Candidate of Technical Sciences, Associate Professor, Deputy Head of the Department of offshore oil and gas fields Development, National University of Oil and Gas «Gubkin University», shelf1998@mail.ru

Key words: Kara Sea, combined oil and gas field facility, integrated method for developing offshore fields, mobile unified ice-resistant stationary platform.

The article analyzes the degree of technical and technological preparedness for the development of promising fields by Russian industry, and in particular the possibility of developing the Kara Sea deposits by creating a mobile unified ice-resistant stationary platform.

 

HISTORY OF THE NATIONAL UNIVERSITY OF OIL AND GAS «GUBKIN UNIVERSITY»

Martynov V.G. – Rector of National University of Oil and Gas «Gubkin University», Professor, Corresponding Member of the Russian Academy of Education, com@gubkin.ru

HISTORY OF THE NATIONAL UNIVERSITY OF OIL AND GAS «GUBKIN UNIVERSITY»

Martynov V.G. – Rector of National University of Oil and Gas «Gubkin University», Professor, Corresponding Member of the Russian Academy of Education, com@gubkin.ru