Abstract

One of the most important tasks in the development of multi-layered regions with a cluster layout of wells is to increase the low-pressure wells operation efficiency. A successful solution of this task can, in particular, help to increase the efficiency of developing multi-layer deposits by developing reserves of low-potential deposits, as well as reducing the time spent on producing reserves.

This task is relevant both in the development of oil and gas fields. And the situation is complicated at the late stage of field development. Inactivity of wells leads to loss of production, uneven development of productive layers and poor performance of fields development.

As a solution to the presented problem, in this paper, it is proposed to use gas-jet devices (GJD) to reduce the wellhead pressure of wells, which allows to jointly operate high-pressure and low-pressure wells in conditions of limited infrastructure.

This paper presents the results of the field trial of the developed method and the technological scheme for reducing the wellhead pressure of gas wells [5], [8], tested on gas wells at the Gubkinskoe field of LLC Rosneft-Purneftegaz. The tests were carried out with a positive result. An assessment was made of the further expediency of using GJD to improve the development efficiency of the Gubkinsky multi-layer field.

Based on the data obtained from the field trial, the prospects for further development of the technology for increasing the operation of gas condensate wells (in conditions of inefficient mechanization) and increasing the efficiency of oil wells (gushing and mechanized) are developed.

To solve these problems, the authors of the work used the results of theoretical and experimental studies of sonic GJD with the cylindrical throat conducted on special stands in laboratory of techniques and technology of oil production in Gubkin Russian State University of Oil and Gas (National Research University) [5].

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