Calculation method for effort value of development of necessary hermetization of plunger-sealing pair

2021 ◽  
pp. 34-37
Author(s):  
V.Sh. Huseinova ◽  
Keyword(s):  
Service Time ◽  
Calculation Method ◽  
Oil Field ◽  
Field Equipment ◽  
Definition Of ◽  
Operation Characteristics

The task on the definition of effort value for development of necessary hermetization of plunger-sealing pair in oil field pumps has been solved. Many years experience of operation of oil field equipment while underground repair of wells shows that ensuring reliability and service time of applied pump units is mostly specified with the quality and operation characteristics of detail components and friction of pumps’ hydraulic parts. It is shown that among the main reasons for detail failures, the wear of plunger and valves, the breakage of sealing collar are dominating.

New liquid for leak testing of oil field equipment

1977 ◽  
Vol 13 (9) ◽  
pp. 845-847
Author(s):  
Kh. T. Kakhramanov ◽  
S. M. Rustamov ◽  
A. M. Bairamov ◽  
Sh. Sh. Shafiev ◽  
A. V. Muradov
Keyword(s):  
Oil Field ◽  
Field Equipment ◽  
Leak Testing

Problems of the strength of oil-field equipment

1978 ◽  
Vol 10 (5) ◽  
pp. 615-617
Author(s):  
G. N. Tret'yachenko
Keyword(s):  
Oil Field ◽  
Field Equipment

Study the effect of casting temperature on details from thermo-plastic materials

2020 ◽  
pp. 42-45
Author(s):  
J.A. Kerimov ◽  
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Mold Temperature ◽  
Quality Parameters ◽  
Oil Field ◽  
Casting Temperature ◽  
Gas Industry ◽  
Field Equipment ◽  
Wide Range ◽  
The Impact

The implementation of plastic details in various constructions enables to reduce the prime cost and labor intensity of machine and device manufacturing, decrease the weight of design and improve their quality and reliability at the same time. The studies were carried out with the aim of labor productivity increase and substitution of colored and black metals with plastic masses. For this purpose, the details with certain characteristics were selected for further implementation of developed technological process in oil-gas industry. The paper investigates the impact of cylinder and compression mold temperature on the quality parameters (shrinkage and hardness) of plastic details in oil-field equipment. The accessible boundaries of quality indicators of the details operated in the equipment of exploration, drilling and exploitation of oil and gas industry are studied in a wide range of mode parameters. The mathematic dependences between quality parameters (shrinkage and hardness) of the details on casting temperature are specified.

scholarly journals MODELING OF THE OPERATIONAL SITUATION IN THE EXCLUSION ZONE

2020 ◽  
Vol 1 (1) ◽  
pp. 42-51
Author(s):  
A Tsyhankov ◽  
V Nizhnyk ◽  
Y Feshchuk ◽  
O Teslenko ◽  
Yа Ballo
Keyword(s):  
Service Time ◽  
Emergency Service ◽  
Statistical Data ◽  
The State ◽  
Empirical Dependence ◽  
Exclusion Zone ◽  
Fire Station ◽  
Service Areas ◽  
Normative Response ◽  
Definition Of

The urgency of the work is due to the objective dynamics of changes in the level of man-made and natural threats in the exclusion zone and unconditional (compulsory) resettlement, increasing the volume of taskssolved by operational and rescue units of the State Emergency Service of Ukraine, the need for security people who are, work and live in the Exclusion Zone. Potential threats and dangers in the exclusion zone and unconditional (compulsory) resettlement have been identified. The analysis of statistical data on the involvement of fire and rescue equipment for firefighting. The empirical dependence of the involvement offire and rescue equipment of the State Emergency Service of Ukraine on the elimination of fires in the exclusion zone during the year on their number has been established. It was found that most often 4 to 7 units of fire and rescue equipment of the State Emergency Service of Ukraine are involved in extinguishing fires. Based on the processing of numerical analysis of statistical data, the following conclusions were made: 95% of the time during the year, fire and rescue units are on duty (without calls); 438 hours a year put out single fires; Two hours a year, two fires are extinguished simultaneously. The analysis of calls by service time is carried out. It is established that the service time of calls of fire and rescue units in 25% of cases is up to 2 hours and in 22% of cases is 7-8 hours. An assessment of the locations of fire and rescue units and forest posts with the definition of their service areas. As a result of calculations, it was established that to ensure the normative response to fires at existing facilities in the exclusion zone, it is necessary to provide 4 additional locations of forces and means of fire and rescue units, as well as to ensure the functioning of the fire station on the Vector complex. 

scholarly journals METHODS FOR INCREASING EFFICIENCY OF HYDRAULIC RIGGING IN THE OIL PRODUCTION PROCESSES

2020 ◽  
pp. 32-38
Author(s):  
М. А. Куразов ◽  
З. Х. Газабиева ◽  
Р. Х. Моллаев ◽  
А. Ш. Халадов
Keyword(s):  
High Efficiency ◽  
Essential Elements ◽  
Oil Field ◽  
Hydraulic Pressure ◽  
Field Equipment ◽  
Field Development ◽  
Bottom Hole ◽  
Oil Flow ◽  
Complex Technology ◽  
Pumping Equipment

Гидравлический разрыв пласта (ГРП) представляет собой комплексную технологию обработок скважин. При этом его следует рассматривать не только как средство воздействия на призабойную зону пласта (ПЗП), но и как один из существенных элементов системы разработки месторождения в целом. Технологические схемы ГРП, в том числе с последующим химическим воздействием, различаются в зависимости от коллекторских свойств обрабатываемых объектов. Их эффективность определяется условиями, связанными с фильтрационными характеристиками пластов, то есть коэффициентами проницаемости близлежащих и удаленных зон объекта. При этом подход к проектированию обработок ГРП будет различным в низко- и высокопроницаемых пластах, и в этой связи грамотный выбор скважин имеет существенное значение. Для исключения смыкания трещин после ГРП и снятия давления в призабойной зоне пласта (ПЗП) в скважины закачиваются различные расклинивающие агенты. Расклинивающие агенты (проппанты) должны противостоять напряжениям горной породы, удерживая трещину раскрытой после снятия гидравлического давления жидкости разрыва и обеспечивая, таким образом, высокую фильтрационную способность призабойной зоны пласта и дебиты нефти скважин. Обработки скважин проводятся с использованием стандартного нефтепромыслового оборудования и насосной техники. Промысловый опыт ГРП в условиях Верхне-Салымского месторождения (Западная Сибирь) показал его достаточно высокую эффективность. Hydraulic fracturing is a complex technology of well treatment. At the same time it should be considered not only as a means of impact on the bottom-hole zone of the formation, but also as one of the essential elements of the field development system as a whole. Technological schemes of MPG, including with subsequent chemical impact, differ depending on collector properties of processed objects. Their effectiveness is determined by conditions related to filtration characteristics of formations, i. e. permeability coefficients of nearby and remote zones of the object. At the same time, the approach to the design of GRP treatments will be different in low and highly permeable formations and in this regard, competent selection of wells is essential. Various proppantsare pumped into wells to prevent closing of cracks after MPG and to relieve pressure in bottom-hole zone of formation. Proppants (proppants) must withstand rock stresses by holding the fracture open after the hydraulic pressure of the fracturing fluid has been removed, and thus ensuring high filtration capacity of the bottom-hole formation zone and well oil flow rate. Well treatments are carried out using standard oil field equipment and pumping equipment. The field experience of GRP in the conditions of Verkhne-Salymsky field (Western Siberia) showed its rather high efficiency.

scholarly journals The composition of acid/oil interface in acid oil emulsions

2020 ◽  
Vol 17 (5) ◽  
pp. 1345-1355
Author(s):  
Yulia M. Ganeeva ◽  
Tatiana N. Yusupova ◽  
Ekaterina E. Barskaya ◽  
Alina Kh. Valiullova ◽  
Ekaterina S. Okhotnikova ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Oil Field ◽  
Field Equipment ◽  
Oil Emulsion ◽  
Acid Oil ◽  
Field Development ◽  
Intermediate Layers ◽  
Acid Sludge ◽  
Oil Emulsions ◽  
The Stability

Abstract In well stimulation treatments using hydrochloric acid, undesirable water-in-oil emulsion and acid sludge may produce and then cause operational problems in oil field development. The processes intensify in the presence of Fe(III), which are from the corroded surfaces of field equipment and/or iron-bearing minerals of the oil reservoir. In order to understand the reasons of the stability of acid emulsions, acid emulsions were prepared by mixing crude oil emulsion with 15% hydrochloric acid solutions with and without Fe(III) and then separated into free and upper (water free) and intermediate (with water) layers. It is assumed that the oil phase of the free and upper layers contains the compounds which do not participate in the formation of acid emulsions, and the oil phase of the intermediate layers contains components involved in the formation of oil/acid interface. The composition of the oil phase of each layer of the emulsions was studied. It is found that the asphaltenes with a high content of sulfur, oxygen and metals as well the flocculated material of protonated non-polar oil components are concentrated at the oil/acid interface. In addition to the above, in the presence of Fe(III) the Fe(III)-based complexes with polar groups of asphaltenes are formed at the acid/oil interface, contributing to the formation of armor films which enhance the emulsion stability.

Approaches to Evaluation of Profiler Accuracy

2003 ◽  
Vol 1860 (1) ◽  
pp. 129-136 ◽  
Author(s):  
Yongqi Li ◽  
James Delton
Keyword(s):  
Calculation Method ◽  
High Accuracy ◽  
Statistical Correlation ◽  
Definition Of

The inadequacy of the existing ASTM E950 method for definition of the bias of an inertial profiler in the measurement of a pavement profile is analyzed. An improved bias calculation method is proposed. An analysis of the profile measurements and international roughness indexes (IRIs) of four pavement locations was conducted, and the results show that there is no statistical correlation between the profile biases and IRI bias. This analysis demonstrates that a profiler classified as having high accuracy in measuring profiles by ASTM E950 or other proposed bias criteria does not necessarily provide an accurate measurement of IRI. Therefore, it is recommended that the accuracy of a profiler in the measurement of IRI be evaluated independently when IRI, instead of profile, is used for a smoothness specification or other purposes. A criterion to evaluate profilers’ accuracy to measure IRI is developed based on the concept of probability.

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