Construction of Oil and Gas Wells on Land and Sea

Antonina Vasilievna Stupakova, dr. of geol.-mineral sci., Professor, Head of the Petroleum Department, Professor, Head of the Department, coordinator of the “Geotech” cluster, Director of the Institute for Advanced Study of Oil and Gas MSU,

Roman Sergeevich Sautkin, Cand. of geol.-mineral sci., senior researcher,

Georgy Alexandrovich Kalmykov, dr. of geol.-mineral sci., Professor of Petroleum Department, Head of the "Kern" center of the Institute for Advanced Study of Oil and Gas MSU,

Anna Anatolievna Suslova, Cand. of geol.-mineral sci., leading researcher MSU,

Sergey Mikhailovich Karnaukhov, Cand. of geol.-mineral sci., advisor of the Institute for Advanced Study of Oil and Gas MSU,

Vasily Sergeevich Belokhin, Cand. of phys.-math. sci., researcher of Petroleum Department MSU,

Dmitry Valentinovich Mitronov, Cand. of geol.-mineral sci., engineer of Petroleum Department MSU

Lomonosov Moscow State University

Moscow, Russian Federation,

e-mail: a.suslova@oilmsu.ru

Sergey Borisovich Korotkov, Cand. of geol.-mineral sci., Deputy Head of the Management Board

LLC "GazpromInvest"

St. Petersburg, Russian Federation

Since 2018, the Institute for Advanced Study of Oil and Gas of Lomonosov Moscow State University, together with the Petroleum Department of the Geological Faculty of Lomonosov Moscow State University and experts in the oil and gas industry, has been developing an integrated technology for clarifying and forecasting a geological section during drilling exploration and production wells. At the intersection of oil and gas geology, petrophysics, geochemistry and drilling, a fundamentally new approach to in-depth study of drill cuttings has been developed and proposed for commercial use in conjunction with geophysical well survey (GIS) methods (neutron logging (NL), nuclear magnetic resonance (NMR), lithoscanner, gamma-gamma logging (GGL), spectrometric gamma-ray logging (SGRL). The basis of the complex for in-depth study of cuttings in order to determine the mineralogical composition and reservoir properties is a portable laser emission spectrometer (LIBS), which was originally used only in the mining and metallurgical industries to determine the chemical composition of alloys and ore raw materials. The demand for the above-said method is caused by the necessity of an operational geological forecast of complications during drilling of complex wells and refinement of geological and hydrodynamic models of hydrocarbon deposits based on the data of drilling of a dense network of production wells in which core sampling is minimal or not provided.

Keywords: digital drill cuttings; drill cuttings; neutron logging (NL); nuclear magnetic resonance (NMR); litoscanner; gamma-gamma logging (GGL); spectrometric gamma logging (SGL); portable laser emission spectrometer.

Order this article in the electronic library

UDC 553.982.2 DOI: 10.33285/0130-3872-2021-12(348)-16-23

FEATURES OF GEOLOGICAL EXPLORATION
WHEN DEVELOPING HYDROCARBON RESERVES IN THE ARCTIC ZONE
OF THE TIMAN-PECHORA OIL- AND GAS-BEARING PROVINCE (p. 16)

Vladimir Borisovich Rostovshchikov, Cand. of geol.-mineral sci., Head of the Department,

Natalia Pavlovna Demchenko, Cand. of geol.-mineral sci., Dean,

Yana Stepanovna Sbitneva, senior lecturer

Ukhta State Technical University (USTU)

Ukhta, Russian Federation,

e-mail: vrostovchikov@ugtu.net, ndemchenko@ugtu.net, yana.loma4inskaya@yandex.ru

Irina Vladimirovna Kolokolova, researcher

Oil and Gas Research Institute RAS (IPNG RAS)

Moscow, Russian Federation,

e-mail: ipngkolokolova@yandex.ru

The Arctic zone of the European North is a vast territory beyond the Arctic Circle (70 parallel), including the continental part of the Timan-Pechora oil- and gas-bearing province and its continuation in the Pechora Sea, as well as the Barents Sea oil and gas potential province. The total area of promising lands is more than 1 million km². By now, eight fields have been discovered within the Arctic shelf of the Pechora Sea, where the main structural elements of the continental part of the Timan-Pechora province continue: Severo-Gulyaevskoye, Dolginskoye, Pomorskoye, Prirazlomnoye, Medynskoye-more, Varandey-more, Peschanoozerskoye and Tarskoye. According to the results of a comprehensive express interpretation of seismic surveys with CDP-2D and 3D on the shelf, transit and continental parts, structure N is a continuation of the Lower Devonian deposit in the continental part of the Roman Trebs field. It is with it that the main prospects for creating a large raw material base for the development of the oil and gas industry are associated.

The main features and problems when carrying out geological exploration works (GEW) both on the continent and on the shelf include: general geological (features of the formation and placement of promising oil and gas traps due to the history of the geological development of oil and gas complexes (OGC), technological (presence of a transit zone, island permafrost, climatic conditions, features of construction of offshore drilling facilities, etc.) and economic (significant increase in the cost of GEW in the shelf part of the Arctic zone).

A set of geological exploration works (seismic survey and prospecting-appraisal drilling) allows making a conclusion that: the transit zone is a link between continental fields and their offshore extensions in the Arctic shelf; this zone, up to 10–15 km wide and hundreds of km long, has practically not been explored by seismic exploration because of to technical and technological difficulties; exploration of offshore oil-promising structures as well as the development of coastal blocks of fields is possible from the onshore part using directional and horizontal drilling. Taking into account the high prospects of the transit zone, it is recommended to conduct special geological and geophysical studies there and assess its oil and gas potential.

Keywords: seismic CDP-2D and 3D; arctic zone; transit zone; directional drilling; structural-stratigraphic trap; Lower Devonian carbonate complex.

Order this article in the electronic library

UDC 622.24 DOI: 10.33285/0130-3872-2021-12(348)-24-28

STUDY OF TRACKING (RACK FORMATION) AT THE WELLBOTTOM (p. 24)

Oleg Gennadievich Blinkov, Dr. of tech. sci.

Ural Federal University named after B.N. Yeltsin, the first President of Russia

Ekaterinburg, Russian Federation,

e-mail: blinkovog@gmail.com

Research, analysis and identification of the reasons for the decline of bits performance in case of occurrence of such common and undesirable phenomenon as tracking (rack formation) at the wellbottom is an important aspect of studying the effectiveness of rock destruction by roller cone bits. Factors affecting rocks destruction efficiency at the bottom of the well have been theoretical studied. A mathematical model of roller-cone drill bits operation at the wellbottom has been created, which allows the development of new cutting structures of roller-cone drill bits, capable of effectively destroying rocks without tracking (rack formation). The main reasons and regularities of the tracking occurrence at the bottom of the well, which reduces the efficiency of rocks destruction, have been identified, methods have been developed to prevent or minimize it. An analytical model and a calculation scheme have been developed that allow obtaining reliable information about the parameters and operating conditions of individual roller cone bits and their rolling cutter teeth row at the wellbottom.

Keywords: rack formation; tracking; roller cone drill bits; cone gear ratio; efficiency.

Order this article in the electronic library

UDC 622.24 DOI: 10.33285/0130-3872-2021-12(348)-29-34

AUTOMATED SYSTEM OF ADAPTIVE CONTROL
OF DRILLING OIL AND GAS WELLS (p. 29)

Valery Alexandrovich Shmelev, Cand. of tech. sci., associate professor

Volgograd State Technical University

Volgograd, Russian Federation,

e-mail: app@vstu.ru

Increasing potential commercial reserves and production of hydrocarbon raw materials requires the use and development of new field development technologies. Scientifically based creation of automated production facilities and control systems for drilling technological processes is one of the instruments for increasing the economic efficiency of drilling operations, the determining factor of which is the presence of an automated drilling control system (ACS) that is optimal in structure.

Keywords: efficiency assessment; integral performance criteria; drilling operating parameters; similarity theory and dimension analysis; dimensionless complexes; tools operation mode; energy efficiency; automated control system.

Order this article in the electronic library

UDC 622.244.442 DOI: 10.33285/0130-3872-2021-12(348)-35-40

SOME PRACTICAL PROBLEMS OF REGULATING
THE PROPERTIES OF WATER-BASED DRILLING FLUIDS
UNDER POLYMINERAL AGGRESSION (p. 35)

Mikhail Alexandrovich Mikheev, Cand. of tech. sci., associate professor,

Nadezhda Mikhailovna Ulyasheva, Cand. of tech. sci., Professor, Head of Department

Ukhta State Technical University

Ukhta, Russian Federation,

e-mail: miheev_ma@mail.ru, nulyasheva@ugtu.net

The article considers the problems of optimizing the management of drilling fluids properties in conditions of polymineral aggression. The most common problems with drilling fluids in the presence of various types of salts in the section are indicated. Examples of possible aftereffects of violation of drilling fluids properties are given. The simplest techniques of preventing emerging problems and controlling drilling fluids properties are proposed.

Keywords: drilling fluid; polymineral aggression; complications; salt.

Order this article in the electronic library

UDC 622.24 DOI: 10.33285/0130-3872-2021-12(348)-41-45

STUDYING OF EMULSION DRILLING FLUIDS
WITH ORGANIC INHIBITORS OF CLAY HYDRATION (p. 41)

Daniyar Lyabipovich Bakirov, Cand. of tech. sci., Deputy Director,

Eduard Valerievich Babushkin, Cand. of tech. sci., Head of the Department,

Marsel Masalimovich Fattakhov, Cand. of tech. sci., Head of the Department,

Vladimir Gennadievich Vaulin, chief specialist,

Lyudmila Anatolievna Volkova, specialist

KogalymNIPIneft, Branch Office of "LUKOIL-Engineering" in Tyumen

Tyumen, Russian Federation,

e-mail: BakirovDL@tmn.lukoil.com, BabushkinEV@tmn.lukoil.com, Fattahovmm@tmn.lukoil.com, VaulinVG@tmn.lukoil.com, VolkovaLA@tmn.lukoil.com

Vadim Valerievich Fatikhov, Section Head

LLC "LUKOIL-Western Siberia"

Kogalym, Russian Federation,

e-mail: Vadim.Fatihov@lukoil.com

The construction of horizontal wells in the target formations of the Yu group in the Western Siberia is often connected with a number of complications associated with the presence of intervals of unstable deposits. It is necessary to develop a highly inhibited drilling fluid, the use of which will prevent the softening of clay rocks that form the walls of the well. The article proposes to increase the inhibiting ability of known drilling fluids by introducing additional organic inhibitors based on fatty acids of vegetable oils into their composition.

Keywords: unstable deposits; inhibitory ability; organic inhibitor.

Order this article in the electronic library

UDC 523.528 DOI: 10.33285/0130-3872-2021-12(348)-46-49

USE OF HYDRAULIC JETS WHEN OPERATING OIL PRODUCTION FACILITIES (p. 46)

Alexandra Alexandrovna Ladenko, Cand. of tech. sci., associate professor

Kuban State Technological University

Armavir, Russian Federation,

e-mail: saha-ladenko@yandex.ru

Evgeny Ivanovich Velichko, Cand. of tech. sci., Head of the Department

Kuban State Technological University

Krasnodar, Russian Federation,

e-mail: johnbottle@mail.ru

The article presents a solution of using hydraulic jets in modern environmentally friendly and energy-saving methods of cleaning equipment surfaces of oil production facilities. This solution can be used, for example, in water jet drilling, operation of offshore drilling platforms, cleaning of working bodies of ESP pumping units and internal surfaces of oilfield equipment.

Keywords: jets; drilling; cleaning technology; hydrocavitation method; destruction; layering; jet flow.

Order this article in the electronic library

UDC 622.276.66 DOI: 10.33285/0130-3872-2021-12(348)-50-52

TECHNICAL AND TECHNOLOGICAL SOLUTION FOR CARRYING OUT
A MULTI-STAGE HYDRAULIC FRACTURING IN A WELL AND
A DEVICE FOR ITS IMPLEMENTATION (p. 50)

Mikhail Ivanovich Korabelnikov, Cand. of tech. sci., associate professor,

Natalia Alexandrovna Aksenova, Cand. of tech. sci., associate professor,

Evgeny Yurievich Lipatov, Cand. of tech. sci., associate professor

Tyumen Industrial University, branch in Nizhnevartovsk

Nizhnevartovsk, Russian Federation,

e-mail: korabelnikovmi@mail.ru, na-acs@yandex.ru, eylipatov@vgng.rosneft.ru

Sergey Nikolaevich Bastrikov, Dr. of tech. sci., Professor

Tyumen Industrial University

Tyumen, Russian Federation,

e-mail: bastrikovsn@tyuiu.ru

The article provides a variant of solution to the problem of carrying out an expensive technological operation of a multi-stage hydraulic fracturing. The authors of the article, within the framework of the import substitution program, propose using a technology and a technical device for carrying out a multistage hydraulic fracturing. Equipping the production casing string by pipes with a weakened cross-section, equipped with a brittle bitumen bandage and a wear-resistant material casing, allows creating a large number of hydraulic fracturing intervals in one approach to the well using a tubing assembly with a selective packer.

Keywords: well; production; oil; multi-stage hydraulic fracturing of a formation; production casing string; pipe branch.

Order this article in the electronic library

UDC 622.242.4 DOI: 10.33285/0130-3872-2021-12(348)-53-57

INVESTIGATION OF THE METHOD FOR SELECTING INPUT DATA
FOR FUZZY SYSTEMS DURING ASSESSING THE SUITABILITY
OF A JACK-UP RIG FOR A DESIGN POINT (p. 53)

Natik Ramiz Hadzhiev, Cand. of tech. sci., adviser on wells drilling

e-mail: hajiyevnatik@yahoo.com

Vladimir Yurievich Bliznyukov, Dr. of tech. sci., Professor, academician RANS

RANS

Moscow, Russian Federation,

e-mail: v.bliznukov@yandex.ru

As it is known, in fuzzy systems and fuzzy sets, input and output variables play the role of linguistic variables. In this case, the base of the fuzzy rule is based on a clear regulator, where the rule is "if … then". The principles of these complex systems, described by fuzzy relations, generate a large number of rules for inference of a finite element. The grouping of the state into clusters, on the basis of which conclusions are drawn about the value of the output variable, is performed by an expert based on his experience and knowledge. Ideally, the number of clusters should correspond to the number of attributes by which the value of the output variable is classified. But actually it is not. In the absence of experts, as a rule, a classification is made according to special criteria. One way to group descriptive states into clusters is presented in this article. It is applicable when solving the problem of determining the suitability of a jack-up drilling rig for a design point.

Keywords: fuzzy rules; membership function; jack-up drilling rig; assessment of jack-up rig suitability; deepening of the shoe of the supports; the probability of the failure of the supports when deepening.

Order this article in the electronic library

UDC 622.276.04 DOI: 10.33285/0130-3872-2021-12(348)-58-62

THE RESULTS OF DETERMINING LOCAL OVERSTRESSES
FOR STRUCTURAL ELEMENTS OF MARINE STATIONARY PLATFORMS
IN CASE OF CORROSION DEFECTS PRESENCE (p. 58)

Ivan Viktorovich Starokon, Cand. of tech. sci., associate professor,

Pavel Kirillovich Kalashnikov, Cand. of tech. sci., associate professor,

Ilya Mikhailovich Kryventsov, master’s student,

Alexandr Yuryevich Fursov, applicant

National University of Oil and Gas "Gubkin University"

Moscow, Russian Federation,

e-mail: starokon79@mail.ru

The Russian Federation is actively operating offshore oil and gas facilities. During operation, these structures are exposed to significant corrosive effects from the surrounding marine environment. Corrosion, acting on the elements of offshore platforms, significantly affects their strength properties and can lead to the destruction of the entire platform. In places of corrosive damage, local overvoltage occurs, which can pose a great danger to the operation of offshore platforms. Evaluation of local overvoltage is carried out by determining the stress concentration factors. On the basis of the studies carried out, the authors of the article have developed a formula for calculating the values of the stress concentration factors for structural elements of marine stationary platforms(MSP) in case of corrosion defects presence in them.

Keywords: corrosion defects; marine stationary platforms; structural elements; security; stress concentration.

Order this article in the electronic library

KULIKOV VLADIMIR VLADISLAVOVICH – 60 YEAR ANNIVERSARY
(p. 63)

Order this article in the electronic library

IN MEMORY OF IVAN IVANOVICH KLESHCHENKO
(p. 64)

Order this article in the electronic library

NATIONAL UNIVERSITY OF OIL AND GAS "GUBKIN UNIVERSITY"

Main page of journal