Territorija Neftegas № 6 2013
Read in this issue:
Construction and repair of oil and gas wells
» The technology of invert-emulsion drilling fluids utilizationOpen PDF
In the article the important problem of the utilization of invert-emulsion drilling fluids is discussed. Invert emulsions should be reusable fluids in order to substantiate the economic efficiency of their use. The developed technology allows to separate invert emulsions on water and hydrocarbon phases with the use of standard equipment of the circulating system with the extraction of high-quality hydrocarbonic phase, suitable for re-use.
Keywords: utilization, invert-emulsion drilling fluid, the technology of invert-emulsion drilling fluid destruction.
» Calculation of optimum values of gas turbines and its control systems reliability characteristics for oil and gas industry uninterruptable power supplyOpen PDF
There is the calculation process of optimum values of gas turbines and its control systems reliability characteristics is examined by GTPP Kuryanovo (Moscow) example.
Keywords: gas turbine power plant, GTPP, gas turbine, reliability, optimization, power supply, automation.
Enhanced oil recovery
» Methodical basics of ASP flood compounds lab testingOpen PDF
One of the tight oil development methods is ASP-flooding. Important component of ASP-composition is surfactants, which under the optimal conditions form microemulsion, capable of getting the ultralow IFT values. In present work, experimental evaluaton methods of surfactant activity and adsorption on porous media during surfactant solution filtration are given.
Keywords: surfactants, ASP-flooding, surfactant activity, microemulsions, adsorption, porous media, saturated core desaturation method.
» Improvement technology of development AB1 layer of the Soviet field for effective industrial developmentOpen PDF
With the involvement purpose in development of low-permeability layers of fields at a late stage of development, application on a field of new technologies is offered when developing. Only such approach will allow to solve problems of joint development of highly productive layers with low filtrational and capacitor properties. For implementation of this program all is generalized available a material on productive deposits of the Soviet field. Criteria are created at geonavigation allowing to increase the effective length of a horizontal site at well construction.
Keywords: oil, multilaterull well, drilling, geonavigation, horizontal well.
Maintenance and repair of pipelines
» Determination of process parameters for gas pipeline dismantlingOpen PDF
When removing gas pipeline for preparation and factory re-insulation the most effective way to remove it is stripping above the pipe and slight cutting of it from side generatrices. After that the pipeline section is opened, cut into pipes sections, under which trolley pipe holders are put, and removing (using required number of pipe handlers) stepwise and gas pipeline section installation on benching are done. With this method of removal earthworks volumes regarding pipeline opening, as well as the cost parameters are significantly reduced.
» Russian valve manufacturing in 2012Open PDF
Abridged version of the analytical review (review full version containing 49 pages, 34 tables and 44 diagrams demonstrates the current state of the Russian valve industry and the main trends of its development). The analysis of the Russian valve market according to the results of 2012 shows that the main development trends are practically unchanged in comparison with the results of 2011. The volume of the Russian production did not show significant dynamics based on the continued import growth as for actual expression and cost parameters. Production financial volumes growth has been still achieving by production cost increase. A share of exports in the structure of the Russian production does not exceed 7-10% and it has a steady downward trend for the last three years.
Transport, storage and processing of oil and gas
» Influence of oil rheological characteristics on the design and operation of above-ground field pipelinesOpen PDF
In moderately cold climate crudes containing up to 6% of paraffin (middle paraffin oil) do not show Newtonian properties when transported through underground field pipelines. Laboratory tests of oil from one of the fields in the RF European North evidence that crudes containing up to 6 % of paraffin demonstrate non-Newtonian properties in the regions with extremely severe environmental conditions, where the pipelines of field gathering and transfer systems are above-ground.
Keywords: paraffin oil, effective viscosity, pour point depressant, initial dynamic shear stress, shear rate.
» Problems of reliability and repair of buried subsea pipelines for oil and gaz transport at continental shelf developmentOpen PDF
Key factors at marine pipelines design are requirements on reliability assurance. Two concepts are possible at their operation: when the risk of failure of their linear part is not considered and when the risk of failure of linear pipeline portions is not considered and when patrol of their internal states is annually carried out. For the certificated marine pipelines separate repair works are classified as planned and emergency, and there are very many difficult and their various technologies.
Keywords: computer simulation modeling, pipelines damage, pipelines integrity, risk analysis, scheduled and emergency repair.
» Features of the protection of the marine oil terminals with consecutive berths from hydraulic water hammerOpen PDF
Marine oil terminals, which include not one, but several consecutive berths on the pier for tankers of various dwt are considered. The question of the minimum number of protection systems from the water hammer (SZGU) and their locations to ensure safe conditions for the loading of ships at all berths of the terminal investigated. It is shown that location of the protection systems of the water hammer (SZGU) at the end of the pier is the most preferred for the serial arrangement of two berths at the pier. This allows protecting the terminal in case of the loading on each of the berths, and also avoiding the need for protection against the pressure wave in a dead end of the pipe. Under certain conditions, SZGU, placed at the end of pier, provides protection from the water hammer is not only 2, but 3 consecutive berths
Keywords: water hammer, marine oil terminal, the effective time of closing valves, consistent layout berths.
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