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RU
Произведена оценка надежности элементов бурильной колонны с учетом вероятностных динамических переменных нагрузок. Показано, что оценить долговечности того или иного элемента колонны при вероятных колебаниях можно при определении среднеквадратичного напряжения последующего расчета эквивалентного в отношении усталостной прочности напряжения при чисто гармоничной нагрузки элементов бурильной колонны.
EN
An assessment of the reliability of the elements of the drill string was carried out, taking into account the probability of dynamic variable loads. It is shown that the evaluation of a particular column element durability, when possible vibrations, can be done by determining the RMS subsequent calculation of the equivalent in relation to fatigue stress for purely harmonic load components of the drill string.
RU
Рассмотрены колебания колонны бурильных труб с прямолинейной осью постоянного или переменного по длине сечения в условиях искревлением ее траектории. Показано, что амплитуда изгибаючих колебаний усиливается за счет центробежных сил при вращении колонны (роторное бурение).
EN
Consider the drill string vibrations with linear axis AC or the length of sectional curvature in terms of its trajectory. It is shown that the amplitude of the bending vibrations is amplified by centrifugal force while rotating column (rotary drilling).
EN
The article provides the results of using of the dehydrating phosphor-соmрlех DFK-12 for restoration and increase of the well’s bottomhole zone permeability. The positive influence is achieved duе to chemical and physical influence at the reservoir.
EN
An increase of well productivity is one of the urgent challenges for oil and gas production industry. One of the methods of increasing the permeability in bottomhole area (ВНА) of formation is affecting the productive reservoir by methods providing the formation cracking. The offered unit allows to research filtration properties of productive formation and oi1 and gas wells in the process of affecting the bottomhole area by the endo- and exothermic systems.
EN
This article presents the рrоblem of inhibition protection of the gas production equipment with the help of the соmрlех reagent based bischofite OV-07. The technology of inhibitor preparation on the mining wells is proposed and the possibility of its chemical and thermal regeneration is showed. The use of reagent OV-07 in two technological schemes is recommended: the closed and semiclosed cycles.
6
Content available remote Problemy vskrytia i osvoennia plastov s ANPD
EN
The problem of saving the productive qualities of the layer is one of the most important in the process of the wells' renewal. We offer technology of fluids removal for wells complicated with the fluids column on the pit-face (the briquetted chemicals which have foaming and cleaning qualities are used in this technology). The aforesaid technology is created to increase intensity of the pronouncement of washing fluids after completion of works on the productive layer opening.
7
Content available remote Kompleksnyj ingibitor gidratoobrazovania i korrozii na osnove bisofita
EN
The complex inhibitor of hydrate and corrosion is developed on the basis оf bischofite to protect equipment in gas and gascondensat mining wells. Following results of lаboratory research the working agents for preparation of bishophit to be applied during production and preparation of gas for the transport are selected, and the mechanisms of an operation оf reactants are offered.
EN
Exploitation of the fields of low-permeable deep-laying carbonate collectors DDC is complicated by lithologic factors and physical/chemical characteristics of the production. We offer methods for hydrocarbones production intensification which save the basis of the rock from destruction, and methods of cracks' making, thermodynamic gap, thermal influence.
9
Content available remote K voprosy termodestrukcii porod produktivnyh plastov
EN
The data of experimental researches of thermal destruction impact on productive formations rock are cited. It is determined that an active fissure formation with crack depth up to 15-25 mm occurs under the temperature reduction to - 10 degrees of Celsius and less only or under the temperature increasing up to +500-700 degrees of Celsius. The researches reveal that the fissure formation goes more effective under lesser temperature depression with system cooling than system heating.
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