научный журнал по геофизике Нефтяное хозяйство ISSN: 0028-2448

ЕВТУШЕНКО Н.Н., ЗАЙЦЕВ А.И., КИБАШ М.Ф., КОВХУТО А.М., ЛОБОВ К.А., ЛОБОВА Н.Л. — 2015 г.

According to the results of analysis of main geodynamic parameters (rock, breakdown, formation pressures, oil and fluid production rates) were calculated the compensation factors of rock pressure, deformation loss, productive capacity for over 23 oil fields, 29 accumulations and more than 600 oil wells in Rechitsko-Vishanskaya area of Pripyat foredeep. The classification of accumulations by stress -strain state was developed for the whole period of well operation. Constant monitoring of changes in stress - strain state of complex structure reservoirs during drilling process, testing, deployment, developing and production of oil will allow us to manage these processes in a timely manner and increase oil recovery

ДОЛГИЙ И.Е. — 2015 г.

Exploitation of high viscous oil deposits requires specific technical and economical solution of oil extraction. Based on the analysis of current practice of high viscous oil extraction in Yaregskoye oil-titan deposit, the author suggested a system of preparation and exploitation of oil deposit by thermo-mining method. Parameters of suggested system and sequence of its realization was justified. The method of coupled extraction of oil and titan from the same layer, which is suggested in this work, let to achieve the designed production level of high viscous oils in shorter term, to decrease the duration of oil extraction from the current part of the layer and to pass to extraction of titan-oil ore in shorter time. The coupled method of high viscous oil extraction and titan ore lets to achieve the high level of oil-titan site preparation for further extraction. The method of oil extraction lets to achieve the ratio of oil-titan extraction coefficient to a number of 90 %.

ПЕТРУХА В.В., ХРАМЧЕНКОВ М.Г., ХРАМЧЕНКОВ Э.М. — 2015 г.

Osmotic pressure in swelling clay rock depends on the type and concentration of the pore solution. At zero concentration of the pore solution osmotic pressure is generated by ions-compensators negative electric charge of clay particles. Last is the cause of heterovalent substitution of iron ions in the octahedral sites and silicon ions in tetrahedral sites. If the osmotic pressure is balanced by the external pressure on the osmotic system, the latter starts to swell. The presence of electrolytes in the water changes the magnitude of the osmotic pressure in the clayey rock. The dependence of the concentration of the osmotic pressure of the solution is rather complex, therefore at different solution concentrations swelling of clayey rocks proceeds differently.

ЕСКИН А.А., КОЛЬЧУГИН А.Н., КОРОЛЕВ Э.А., МОРОЗОВ В.П., НУРИЕВА Е.М. — 2015 г.

The authors studied conditions of changing carbonate reservoir rocks of Tournaisian stage in phase of water-flooding of oil reservoirs. We studied the sequence of changes in the pore volume in the limestone caused by oil oxidation products and identified three stages of change rocks: 1) increase of porosity, caused by activation of dissolution processes in mineral skeleton of rocks; 2) formation at the periphery of cavities thin crusts of calcite, which reduces of pore volume; 3) filling of open pore space large grains of calcite. These stages correspond to bitumen, water-bitumen and water subzones in structure of water-oil contact zones. Involvement in the development oxidized parts of oil reservoirs is important direct in oil exploration industry, today. Regularities identified in the work can help to choose methods of impact on the oil reservoir with heavy oil and bitumen.

ВЫЧУЖАНИНА Е.Ф., ПЛЕХАНОВ Ф.И., ТОНКИХ А.С. — 2015 г.

Planetary gears used in drilling rigs have limited radial dimension and therefore they are usually performed multi-row, and for load balancing between the rows of wheels used complex mechanisms of self-installation units. At the same time transmission elements compliance in its rational constructive performance and correct selection of parameters allows, as seen from the work done, to achieve near- uniform load distribution in meshes, without the complication of the drive, thereby increasing reliability and reducing the cost. Study of deformability elements multilane planetary gear console location of the axes of satellites and its impact on load distribution linkages wheels showed that the coefficient of uneven load distribution on small rims of satellites even at a relatively low degree of precision manufacturing of transmission; it should be considered when designing. Gear type test expedient to use actuators with limited radial dimension, in particular in the oil and gas drilling and pumping equipment. Multi-row planetary mechanisms cantilever caliper axes located relatively simple in design and low power losses due to friction are effective against both the load capacity, and in terms of weight and dimensions.

МАРТЮШЕВ Д.А., МОРДВИНОВ В.А. — 2015 г.

Wells flow indexes, reservoir permeability, natural fractures opening dependence on bottom-hole and lateral rock pressures ratio is established during the analysis of data, characterizing operation of producing wells of Tournaisian-Famennian deposit of Ozyornoye field. It is shown, that the deposit in the borehole zones is transformed from the fractured-porous type into the porous one at decreasing of bottom hole pressures and natural fractures closing during the reservoir deformation.

КОЛЬЧУГИН А.Н., КОРОЛЕВ Э.А., МОРОЗОВ В.П. — 2015 г.

The authors have shown principle structure of oil-water contact zones in Bashkirian carbonate reservoirs of Volga-Ural region. There were established structural and mineral characteristics of oil-water contact zones and were shown main regularities of changing composition of hydrocarbons along the section. It depends from type, speed and intensity of metasomatic transformations of rocks.

БРАВИЧЕВ К.А., КАЗАКОВ К.В. — 2015 г.

The article describes the physical processes occurring in the reservoir when the reservoir pressure decrease below the initial value, but above the bubble point, and reviews their effect on oil recovery under water drive. These processes are simulated taking into account the changes in the physical properties of oil, water and rock when the pressure changes. It is shown that the reduction in reservoir pressure increases the waterflood oil recovery and the efficiency of this process is practically independent of water cut and the degree of the current depletion of reserves.

ЛЕКОМЦЕВ А.В., МАРТЮШЕВ Д.А., САВЧИК М.Б., ЧЕРНЫХ И.А. — 2015 г.

The article presents the results of processing data obtained during tracer tests conducted on the carbonate deposits Bashkir-Serpukhov sediments of Siberian deposits. It is found that fracture permeability and indicator speed in the north-west direction are higher in several times than the corresponding parameters in other areas.

БАКИРОВ Д.Л., ВОДОРЕЗОВ Д.Д., ДВОЙНИКОВ М.В., ОШИБКОВ А.В., СВЕТАШОВ В.Н., СЫЗРАНЦЕВА К.В., ФРОЛОВ С.А. — 2015 г.

The paper reviews the issues of construction of multilateral wells associated with junction of wellbores. The authors also presents technique of modeling of the stress-strain state of the joint multilateral well using software package ANSYS, which implements the finite element method, a nonlinear analysis based on elastic-plastic deformation in metal pipes. It is shown that tension occurring in the metal pipe due to differential pressure action at the junction, is significant factor affecting the structural integrity of the wellbore. Analysis of the results of computational experiments revealed that during the operation of considered TAML-4 design involves the risk of the annular flows behind column and gas and water breakthrough. It is also concluded that designing well construction should regard rock properties not only in the area of the joint, but at a considerable distance above and below the junction of wellbores. Analysis of factors affecting the magnitude of tension showed that the creation of isolated junction of TAML-4 level is impractical because it increases the value of the differential pressure, and thus significantly increases the tension in structure materials.

АЙТКАЛИЕВА Г.С., БОЙКО Г.И., КАРАБАЛИН У.С., КАСЫМГАЛИЕВ К.М., ЛЮБЧЕНКО Н.П., МАЙМАКОВ Т.П., САРМУРЗИНА Р.Г., ШАЙХУТДИНОВ Е.М. — 2015 г.

The analysis of the component composition of the oil from Kumkol oilfield was carried out. It is shown that the base of oil is paraffinic hydrocarbons. The study of group composition of paraffin and resin extracted from Kumkol oil was carried out using the method of IR spectroscopy. Thermal characteristics of an oil sample were studied by thermogravimetric and differential combined thermal analysis. Study of melting temperature of paraffin separated from oil performed by differential scanning calorimetry. The studies revealed that the main components of Kumkol oil are paraffins of n-structure with a melting point of 49 °C. The results obtained by the definition of a group of oil and their melting point is a necessary condition for choosing the most effective methods of preventing and removing the paraffin.

АШИХМИН С.Г., КАШНИКОВ Ю.А., ЧЕРНЫШОВ С.Е., ШУСТОВ Д.В. — 2015 г.

Results of modeling stability of controlled directional wells borehole drilled through the unstable beds with lack of reliable information about geomechanical characteristics of rocks are presented. The program complex in which is realized the elasto-plastic transversal-isotropic medium with Mohr- Coulomb yield criterion and taking into account possibility of shifts by bedding was used.

ГЕРЖБЕРГ Ю.М. — 2015 г.

The problem of BHA holding as a result of its sticking to a well wall is considered. There are the results of researches of comparative efficiency of various actions to prevent such holding straps including the use of lubricants in boring mud, hydraulic vibrators to decrease adhesion forces with a clay crust, inclusions in assembly structure of the basic elements reducing its contact. The most effective technological decisions to prevent such holding straps are shown.

АХМЕТШИНА А.С., САЛИХОВ М.М., ТАИПОВА В.А., ХИСАМОВ Р.С., ШАРАПОВ И.Р. — 2015 г.

This paper presents the results of reliability evaluation for passive surface microseismic hydraulic fracture monitoring in injection wells of Tatneft. The authors describe key features of microseismic surface hydraulic fracture monitoring technology, developed by Gradient CJSC. Hydraulic fracture monitoring procedure is evaluated involving pre- and post-fracturing well testing (transient tests) and tracer logging.

ЧЕРЕВКО А., ЯНИН К.Е. — 2015 г.

Horizontal drilling combined with multi-stage hydraulic fracturing is increasingly used in Western Siberia. Focused primarily on the development of stranded oil, these technologies are actively implemented on the Priobskoye field. The authors present the first results of the application of horizontal wells with multi-stage fracturing indicate the high potential of these technologies and their future prospects on the Priobskoye field.

АСМАНДИЯРОВ Р.Н., ВАЛИУЛЛИН А.С., ВАЛИУЛЛИН М.С., НАЗАГАЛИН Э.Р., ТИХОНОВ И.Н., ЯРУЛЛИН Р.К. — 2015 г.

Western Siberian and Volga region oil fields, as a rule, are characterized with low reservoir pressure and exploitation by the method of mechanized extraction, that does not allow to assess the productivity in steady mode of fluid output (extraction) (flow rate), that is easily implemented in gushing wells. That's why, geophysical surveys (GS) are performed in overhaul periods, after stopping the well and extraction borehole equipment глушения скважин. In that case, is sufficiently disrupted work mode of well and reservoir, depression and flow rate created with GS does not correspond to the operating mode. Increasing the number of horizontal wells shows the urgency of the problem of assessing the efficiency of the multistage hydraulic fracturing. To eliminate these restrictions can be applied the technology of ESP bypasses (Y-Tool), where the borehole equipment is delivered on the CT below the depth of descent pump in horizontal wellbore interval.

АКИМОВ О.В., АНУФРИЕВ В.П., ЛОПУХОВ М.А., МАГАДОВА Л.А., СИЛИН М.А. — 2015 г.

An overview of water- and emulsion-based wells killing and washing fluids, developed in Gubkin Russian State University of Oil and Gas, is given. The possibility of using the modern brine plant facilities of the FSI International Services Ltd. manufacturing for qualitative process fluids production is shown. A comprehensive solution to the problem of wells killing with low-impact killing fluids and special equipment for their preparation will allow to eliminate the problems associated with trouble-free maintenance work execution and will preserve the recovery wells productivity.

ГАЛЬБРАЙХ Л.С., ЛАПИН Е.Е., ЛЕВИТИН С.В., ЛОГИНОВА Н.А., РЫЖЕНКОВ А.В., СУБЧЕВА Е.Н. — 2015 г.

The aim of this work was to research the reflectivity of the heat-resistant tissues in the visible and in the infrared spectra, metallized by method of ion-plasma spraying. In the result of studies it was established that the metallizing tissue increases the reflectance in the infrared range by 45%. Thus metallized tissue can be used at temperatures above 500 °C. The results of these tests can be used for further research of processes of metallization and for creating an effective thermal insulation for energy equipment, oil and gas pipelines.

КАРАСЕВА Т.В., КОЧНЕВА О.Е., КУЗНЕЦОВА Е.А. — 2015 г.

The article is devoted to the problem of oil and gas deep horizons Verhnepecherskij basin Ural foredeep. Due to the deep position of the oil-gas complexes, complicating exploration in this area, natural systems basin modeling was implemented. This article describes the results of 1D simulation using the software package Genex of well Vuktylskaya-58, who revealed the deep horizons of the sedimentary cover. The authors made several conclusions about the possibility of generation of gases and condensates, which could ensure the formation of deposits not only in the deeper horizons, but also large deposits in the overlying sediments, the selected periods of generation and accumulation of hydrocarbons, determined the position of the main zone of oil formation according to wells, and the lower limit of the existence of oil.

АНИСИМОВ Л.А., ДЕЛИЯ С.В., КУЗИЛОВ О.И., ФЕДОТОВ И.Б. — 2015 г.

Prospects of the unconventional resources have been considered for the European Russia. Some principal criteria have been proposed for the resource estimation. Shale maturation, enrichment of SiO2 and CaCO3 create fracturing and increase the shale capacity. Shale decompaction is a result of fault tectonics and this process creates the secondary capacity. The program of resource estimation is proposed.