Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)

Development of Technological Complex for Removing Gel and Proppant from Well Bore

Authors
A. E. Verisokin, S. A. Kutovoy, T. A. Gunkina, I. O. Datsyuk
Corresponding Author
A. E. Verisokin
Available Online March 2019.
DOI
https://doi.org/10.2991/ciggg-18.2019.57How to use a DOI?
Keywords
hydraulic fracturing; proppant; gel; hydraulic hammer; coiled tubing; jet pump; foam
Abstract

The problems arising from the backflow of proppant, rock particles, non-decomposed liquid from hydraulic fractures into the well bore are considered in the paper. The urgency of developing a device for flushing out in the horizontal well after formation hydrofracturing is proved. It is shown that solidified and viscoelastic particles of gel stick to the walls of a well. Later these zones of particles' deposits decrease potential flow rates. On the basis of the conducted investigation, the authors developed a device for removing gel and damaged proppant which allows for cleanout of horizontal well bore after formation hydrofracturing. The main advantage of the proposed device is joint hydraulic and mechanic effect on deposits. In the operation of the unit, the rotation of the crown under dynamic head makes it possible to clean efficiently the surface over the entire circumference of the tube. It is proposed to use foam to act efficiently on deposits. Foam can be generated by the jet pump developed by the authors. As the treatment proceeds, the device can move in axial direction through the shifting of the coiled tubing. On completion of well flushing out, the nozzle cease to rotate and returns to its original position thus preventing from internal fouling of the device.

Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)
Series
Advances in Engineering Research
Publication Date
March 2019
ISBN
978-94-6252-690-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/ciggg-18.2019.57How to use a DOI?
Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - A. E. Verisokin
AU  - S. A. Kutovoy
AU  - T. A. Gunkina
AU  - I. O. Datsyuk
PY  - 2019/03
DA  - 2019/03
TI  - Development of Technological Complex for Removing Gel and Proppant from Well Bore
BT  - Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)
PB  - Atlantis Press
SP  - 301
EP  - 304
SN  - 2352-5401
UR  - https://doi.org/10.2991/ciggg-18.2019.57
DO  - https://doi.org/10.2991/ciggg-18.2019.57
ID  - Verisokin2019/03
ER  -