Scientific and technical journal

«Oilfield engineering»

ISSN 0207-2351

Oilfield engineering
№ 2 (638), February 2022
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Control of diaphragm critical section for providing wells’ flow-rate control when operating wells at set modes

UDC: 622.276.346
DOI: 10.33285/0207-2351-2022-2(638)-43-51

Authors:

GRIGULETSKY VLADIMIR G.1,
KOROTKOV SERGEY V.1,
SAVEL'EV YURY P.2

1 National University of Oil and Gas "Gubkin University", Moscow, Russia
2 Baltic State Technical University "VOENMEH" named after D.F. Ustinov, Saint-Petersburg, Russia

Keywords: deep and ultra-deep gas production wells, bottomhole pressure, flow-rate, bottomhole diaphragm section

Annotation:

The article presents and substantiates a mathematical model for predicting production rates of deep and ultra-deep gas production wells (3,5...8,5 km) by controlling the calculated critical diameter of the wellhead diaphragm in time at constant bottomhole pressure modes, which provide hydrate-free well operation in a single system productive formation – wellhead diaphragm.

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