The mechanism of production enhancement by radial water jet drilling-deep acidizing combination measures in thin-poor physical properties reservoirs

Zhongyu Pei

doi:10.1117/12.3024594

13 May 2024 The mechanism of production enhancement by radial water jet drilling-deep acidizing combination measures in thin-poor physical properties reservoirs

Zhongyu Pei

Author Affiliations +

Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 1315932 (2024) https://doi.org/10.1117/12.3024594
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China

Abstract

With the development of oil and gas exploration and technology, China's oil and gas development has shifted from conventional reservoirs to low-permeability and difficult-to-utilize unconventional reservoirs, and reservoirs with thin layers and poor physical properties account for a larger portion of low-permeability reservoirs. In order to develop these types of reservoirs, it is necessary to explore production enhancement methods that can effectively exploit the reservoir. In this paper, numerical simulation was used to study the application effect of radial water jetting-deep acidizing combination measures. The field trial proved that this combination of measures has the effect of increasing oil production. The results show that this combination measure can improve the recovery degree of reservoirs with thin thickness and poor physical propertie, and that the method can change the seepage field around the wells, increase the spreading volume during the water drive process, and reduce the degree of interference between the wells; there is an optimal half-length of the water jetting borehole, and the half-length of the borehole is affected by the permeability of the reservoir. The ideal borehole half-length in the 10×10-3μm2~80×10-3μm2 range is 20~60 m. The results of this paper provide technical support for the effective development of thin thickness and poor physical reservoirs.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Zhongyu Pei "The mechanism of production enhancement by radial water jet drilling-deep acidizing combination measures in thin-poor physical properties reservoirs", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 1315932 (13 May 2024); https://doi.org/10.1117/12.3024594

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KEYWORDS

Permeability

Water

Engineering

Numerical simulations

Absorption

Carbonates

Environmental science

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