EXPERIENCE OF A GAS WELL WITH CONCENTRIC LIFT COLUMNS
Introduction: the Cenomanian deposit of the Urengoy oil, gas and condensate field (UOGCF) is at the advanced stage of its development. The decrease of terrastatic pressure and the rates of operational wells with production tubes of large diameter (168 mm) is the reason of its stops due to the accumu...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
North-Caucasus Federal University
2022-07-01
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| Series: | Наука. Инновации. Технологии |
| Subjects: | |
| Online Access: | https://scienceit.elpub.ru/jour/article/view/32 |
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| Summary: | Introduction: the Cenomanian deposit of the Urengoy oil, gas and condensate field (UOGCF) is at the advanced stage of its development. The decrease of terrastatic pressure and the rates of operational wells with production tubes of large diameter (168 mm) is the reason of its stops due to the accumulation of liquid at the bottom for expulsion to the torch. Materials and research methods: one of the possible technical solutions to provide operational stability of watering out wells is the application of concentric tubing (CT) which is implemented on one of the wells at the UOGCF. In these circumstances, an intelligence system for controlling the flow of borehole products along the central and annular production tubes channels was used to control the productive characteristics of the well in conditions of flooding with condensation water. Research results and discussion: The descent into the well of an additional small-diameter production tube (73 mm) at low terrastatic pressure was carried out without well kill and allowed to maintain the productivity of the reservoir. Conclusion: The analysis of the parameters of the concentric tubing usage and the adopted design solutions made it possible to identify and determine the prospects for maintaining the high efficiency of such usage. |
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| ISSN: | 2308-4758 |