Rational use of reservoir energy might provide increased efficiency of offshore oil and gas production. The utilization of traditional technologies leads to significant energy losses at the wellhead when oil and gas stream goes through the choke. The problem of the reservoir energy utilization remains unsolved due to the absence of technologies and technics, working on multiphase environment with significant changes of composition and properties of gas-liquid mixtures. Creating special turbines and additional equipment for energy conversion is necessary to solve the specified problem. Holistic research of multiphase stream energy production and conversion technologies is carried out within the scope of current studies. The main objective of studies is to create an experimental hydraulic machine sample, which includes a special turbine and a dynamic type separator. The utilization of this special turbine, with a reticulation rotor instead of blades, makes this method of energy conversion unique. The study of the liquid and gas flow key features, through the reticulation rotor, deals with the solution of the liquid and gas flow through the permeable obstacle problem applied to a rotary movement. Key advantages of these considered technologies are reduced energy, necessary for hydrocarbon production, and reduced expenses for equipment maintenance. The utilization of new hydraulic machines will allow directing the reservoir energy to a multiphase environment separation and transportation process, taking into account unique features of each producing well.
The main application of this considered technology deals with the Arctic offshore oil and gas production. Moreover, research results might be used for creating energy effective technologies in other spheres of the industry, including oil and gas treatment and processing.
Reference
1. Sazonov Yu.A., Mokhov M.A., The research of technical systems for offshore
oil fields (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2015, no. 4, pp. 80–82.
2. Bondarenko V.V., Sazonov Yu.A., Mokhov M.A., Hybrid equipment developing
for oil and gas offshore production and treatment (In Russ.), Neftyanoe
khozyaystvo = Oil Industry, 2015, no. 10, pp. 116–119.
3. Sarwar N., UK Gas pipeline to generate renewable energy through geopressure
technology, Climatico. Independent analysis of climate policy, 2009,
January, URL: http://www.climaticoanalysis.org/post/uk-gas-pipeline-to-generate-
renewable-energy-through-geo-pressure-technology/.
4. Geothermal energy production with co-produced and geopressured resources,
2011, URL: www.nrel.gov/docs/fy10osti/47523.pdf
5. Kaupert K., Use better designed turboexpanders to handle flashing fluids,
Hydrocarbon Processing, 2012, URL: http://www.hydrocarbonprocessing.
com/Article/3005111/Use-better-designed-turboexpanders-to-handle-
flashing-fluids.html
6. EP 2467568 b1, A method and an apparatus for obtaining energy by expanding
a gas at a wellhead, 18.09.13.
7. US patent no. 4369373, Method and apparatus for generating electricity
from the flow of fluid through a well, 18.01.83.
8. US patent no. 5117908, Method and equipment for obtaining energy from
oil wells, 02.01.92.
9. US patent no. 6907727, Gas energy conversion apparatus and method,
21.01.05.
10. US patent no. 7043905, Gas energy conversion apparatus and method,
16.05.06.
11. US patent no. 3960319, Centrifugal separator, 01.06.76.
12. US patent no. 4044943, Centrifugal separator and system, 30.07.77.
