Territorija Neftegas № 6 2014
Read in this issue:
» Comparative analysis of the service life of pipelines with inner corrosion-resistant coating and pipelines made of steel 20 KT in the Western SiberiaOpen PDF
The article renders comparative analysis of the service life of pipelines with inner corrosion-resistant coating and pipelines made of steel 20 KT. Data of the check test pieces obtained in the NDT laboratory are given, the pipeline service life is calculated on the basis of the data obtained from experiments and regulatory documents.
Keywords: corrosion, pumped medium corrosion power, wall thickness, standard service life, pipeline, pipeline residual service life.
» On sensitivity of the non-destructive test methods for fault detectionOpen PDF
The article describes the methods for determination of the acoustic emission sensitivity when detecting faults of various sizes. Sensitivity is defined as the probability of detecting an open-end hole of a given size during axial compression of cylindrical tubular samples. The obtained sensitivity is compared with already available data on the sensitivity of ultrasonic, capillary and radiographic non-destructive test methods.
Keywords: non-destructive tests, sensitivity, acoustic emission, probability, Kaiser effect, load, test, experiment, research, sensitivity.
» Prospects of application of cycloidal gearing in the oil and gas industryOpen PDF
Promising areas of application cycloidal gearing in machinery drilling and oilfield equipment, as well as the design of profiles directional wells. The features and advantages of profiling cycloidal gear mechanisms with external gear wheels and planetary type.
Keywords: single-rotor screw hydraulic machine, planetary gear, the gear ratio, well profile, working bodies, rotor, cycloidal gearing.
» Elaboration of biopolymer mud for wells killing with abnormally low reservoir pressureOpen PDF
The possibility of using the biopolymer mud as the process fluid for wells killing. Described the method of calculation rheological parameters. Received the results of laboratory experiments.
Keywords: well killing, biopolymer, blocking mud, blocking and unblocking the couche productive.
» Mathematical modeling of the composition and properties of drilling fluids on water base with application of the drilling complex reagent BKR-5МOpen PDF
The use of reagents with combined effect allows preventing difficulties arising in the operational control of properties of drilling fluids, particularly in drilling complex wells. Drilling complex reagent BKR-5M is an efficient non-toxic reagent used for improving anti-stick properties of filter cakes of water-based drilling fluids. The experimental studies are carried out and the choice of the optimal formulation for clayless and polymer clay drilling fluids with complex reagent BKR-5M is established. The verification of adequacy of the derived mathematical models for drilling fluids was carried out.
Keywords: sticking, antifriction properties and adhesiveness, complex reagent, mathematical modeling, optimal formulation of drilling fluids.
» Study of drill pipe joint wear resisting properties under friction against rock in various mediaOpen PDF
Оne of the causes of drill pipe string failure during well drilling is its fatigue, considering that most failures are caused by wearout of drill pipe joints. The article analyses effect of various drilling fluids on wear resisting properties and friction factor of joint steel 40 XH under friction against core samples on a special-purpose unit.
Keywords: drill pipe string fatigue, friction pair «metal – rock», lubricating additives.
» Effect of geological non-uniformity on extraction efficiencyOpen PDF
The article is dedicated to effect of geological non-uniformity of development objects on non-uniform reserve recovery and fast watering of areas with increased values of filtration, capacity, and structure. It is recommended to use jointly GIS results and core studied with hydrodynamic studies at transient modes to localize reservoir intervals by productivity in order to validate the development system and to correct actions intended to impact the layer according to established geological non-uniformity of pay zones as well as to specify the border of reserve industrial grade.
Keywords: reservoir, oil, gas, deposit, geological non-uniformity, model, filtration-capacitive properties, reservoir delivery, oil recovery factor.
» Genetic classification of tempestitesOpen PDF
The review was made concerning genetic conditions while forming tempestite sediments. It is shown that the signs of storm impact are present in Vikulovskaya suite. Genetic classification is given for Vikulovskaya suite, which will be used during generation of 3D geological model.
Keywords: storm sediments, sedimentation, classification, stratified anisotropic reservoir.
» Scientometrics in scientific institutions: creativeness harmony check using algebraOpen PDF
This essay is another attempt to describe the science efficiency and success using the scientomentrics language. The main difficulty in it is not to shield the most important intangible and non-calculated factor - scientists’ personal creative vitality expressed in creation of scientific works and technologies with numbers, tables and statutes.
Fields Development and operation installation
» Characterization and directions of rational use of condensates Achimov deposits of the Urengoy oil and gas condensates fieldOpen PDF
Conducted a complex physico-chemical study of condensate from the Achimov deposits (layers Ah 3-4, Ah 3-4,5 and Ah 5) of the Urengoy oil and gas condensate field. It is established that the condensates explored deposits are similar by its physical and chemical characteristics, belong to heavy condensates methane-naphthenic type. It is shown that gasoline, kerosene and diesel fractions condensates are favourable raw material for use as the basis for the respective fuels.
Keywords: gas kondensate, fractional composition, the group’s hydrocarbon composition, gasoline, kerosene, diesel fractions.
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