|
Vladimir V. Shaydakov
|
Ufa State Petroleum Technical University, Engineering company “Inkomp-neft” |
Ufa, Russian Federation v1v2sh50@yandex.ru |
|
Artem L. Sukhonocov
|
Ufa State Aviation Technical University |
Ufa, Russian Federation suhonos@mail.ru |
|
Alla R. Lyudvinitskaya
|
Ufa State Petroleum Technical University |
Ufa, Russian Federation Ljudvinickaja@yandex.ru |
|
Riad D. Dzhafarov
|
Trade house Neftekamsk machine building plant |
Neftekamsk, Russian Federation nkmz@nkmz.ru |
|
Fedor V. Dragan
|
Scientific and manufacturing company “Geofizika" |
Ufa, Russian Federation fedor.dragan@gmail.com |
In the article discussed the method of gas withdrawal from a packer with the use of polymeric reinforced small-diameter pipeline.Mathematic model for hydrate formation in the pipeline is described considering irregularity of temperature distribution along well bore in conditions of permafrost. Hydrate formation rate is evaluated.
Materials and methods
Runge-Kutta method was used for calculations.
Results
In the article the issue regarding possibility of hydrate formation in small-diameter pipeline is discussed. Ratefor hydrate layer growth and depth of possible formation is defined.
Сonclusions
1. Gas accumulation under packer in a wellbore is grounded because gas is accumulated after discharging from ring stream in case of laminar bubble flow and excluding receiving unit of well pump.
2. Mathematic model describing hydrate formation process in small-diameterpipeline in quasi-static approximationis created. Specified mathematic model makes it possible to define conditions, in case of which hydration formation ispossible. The model makes it possible to predict the rate of hydrate layer grow thin a pipeline depending on parametersof gas to be withdrawn by the pipeline and “behind-pipeline” side conditions.Keywords
packer
well
wateryoil
gasfactor
reinforced polymeric pipeline
gas withdrawal
hydrate formation
