Tag Archives: pressure gradient
Methods, providing a normal operations mode of gas-liquid mixture (GLM) flow at oil dehydration facilities (ODF) of Arlan fields JSC “ANK “Bashneft” are shown in the article. Based on researches of GLM flow modes, delivered in works of many authors, a number of recommendations are developed on the pipeline design to provide a normal operations flow mode in a suction of multiphase pumps, running at ODF. The analytic solution of the scientific problem is worked out, connected with the selection of a pipeline diameter to provide a normal operations flow mode of GLM, as a result the algorithm of pipeline geometry selection is proposed in base of a lateral pressure gradient. Technical tools are proposed to solve the problem of gas caps passing through a multiphase pump, which realize a forced blending of pumping GLM stratified structure.
The determination of current gas-liquid mix stream mode at the pipeline in oil and petroleum gas gathering system of JSC ANK «Bashneft» on Arlan group of oilfields
In the article JSC “ANK “Bashneft” gathering system of oil wells production with the water dump on preliminary sewage disposal plant operation is considered. Features of exploitation ofequipmentin JSC ANK «Bashneft» oil and petroleum gas gathering and transportation system on Arlan group of oilfields are presented. Factors negatively influencing work of the multiphase screw pumps in structure of preliminary sewage disposal plant operation are marked. The possible current modes of gas-liquid mix are analyzed. The calculation methods of current modes of gas-liquid mix,the results of forecasting and the calculation of a gradient of pressure in structure of preliminary sewage disposal plant operation are defined by Beggs and Brill methodfor the considered equipment arepresented.
Results of the analysis of geological and physical characteristics and indicators of the Kome development oil field in the republic of Chad. The following characteristics were confirmed: highly permeable reservoirs, heavy oil, high temperatures. Operations to increase the productivity index of this field have been a conducted for seven years. This work is based on the use of different applications of hydraulic fracturing. The efficiency of the fracturing depends on the amount of fluids. It also depends the fluid-sand carrier (proppant); precisely on its concentration, on its sequence of entry into the cracks and finally on the rate of injection process during the hydraulic fracturing. A block diagram of the choice of hydraulic fracturing technology has been proposed. The most effective TSO hydraulic fracturing has been identified. Moreover, it has been noted that the most effective fluid-sand carriers for hydraulic fracturing are the water-based, time adjustable gels. For this reason, we recommend research on enhancing hydraufrac TSO technology be oriented to the experimental study of process liquids and to the modeling of key parameters which take into account the minimum values of leaks in the reservoir rock.