We discuss the role of Bose enhancement of the dipole matrix element in photoassociation, using stimulated Raman adiabatic passage as an example. In a nondegenerate gas the time scale for coherent optical transients tends to infinity in the thermodynamic limit, whereas Bose enhancement keeps this time scale finite in a condensate. Coherent transients are therefore absent in photoassociation of ...

Iran's proved natural gas reserves are the world's second largest reserves. Mainly, because of different climate changes and different reservoirs characterizations, studying the behavior of producing outcome fluids and their transportation, is of major interest. One of the main problems occur in the gas reservoirs is related to the hydrate formation while producing from a well, either in produc...

pyrolysis of low density polyethylene (ldpe) by equilibrium fluid catalytic cracking (fcc) was studied in a stirred reactor under different process parameters. in this work, the effect of process parameters such as degradation temperature (420-510°c), catalyst/polymer ratio (0-60%), carrier gas type (h2, n2, ethylene, propylene, ar and he), residence time and agitator speed (0-300 rpm) on the c...

gas injection into heavy oil reservoirs could result in high ultimate recovery of oil. experimental studies showed that an application of a combined technology of gas assisted gravity drainage (gagd) and vapor extraction (vapex) could increase final oil recovery of a candidate viscous oil reservoir. in this paper the results of laboratory investigation are presented, including pressure-volume-t...

Multistage hydraulic fracturing is one of the most prevalent approaches for shale reservoir development. Due to complexity constructing environments experiments, numerical simulation a vital method study flow behavior under conditions. In this paper, we propose model that considers multistage fractured horizontal well with hilly-terrain trajectory in presence natural fractures. The was construc...

The Changbei gas field, which initially exhibited high gas-production performance, is dominated by large-displacement horizontal wells. With the decrease in reservoir pressure, liquid loading well currently severe, and production has been rapidly decreasing. Thus, recognizing gas-well to maintain stable necessary. A method was established identify water source of field. First, formation condens...

The object of research is gas condensate reservoirs, which being developed under the conditions manifestation water drive development and negative effect formation on process natural production. results performed theoretical experimental studies show that a promising direction for increasing hydrocarbon recovery from fields at final stage displacement to producing wells by injection non-hydroca...

The Orenburg oil and gas complex is one of the key participants in Russian fuel-energy sector economy. However, fields have moved to final stage operation. In this regard, authors article attempt formulate justify scientific-technical developments that allow stabilize production increase resource potential through: introduction innovative geological-technical measures; use «CO2-technologies»; m...