A New Productivity Evaluation Method for Horizontal Wells in Offshore Low-Permeability Reservoir Based on Modified Theoretical Model DOI Open Access
Li Li,

Mingying Xie,

Weixin Liu

et al.

Processes, Journal Year: 2024, Volume and Issue: 12(12), P. 2830 - 2830

Published: Dec. 10, 2024

In the early stages of offshore low-permeability oil field development, it is crucial to ascertain productivity production wells select high-production, high-quality reservoirs, which affects design development plan. Therefore, accurate evaluation well essential. Drill Stem Testing (DST) only way obtain true but conducting DST in oilfields extremely costly. This article introduces a novel method for horizontal reservoirs based on an improved theoretical model, relieves limitations traditional methods. Firstly, new model derived, with consideration effects threshold pressure gradient, stress sensitivity, skin factor, and formation heterogeneity fluid flow reservoirs. Then, profiles are classified differences permeability distribution sections. Thirdly, equation modified by calculating correction coefficients maximize model’s accuracy. Based overdetermined concepts existing data, derived this paper x1 = 3.3182, x2 0.7720, x3 1.0327. Finally, proposed successfully applied reservoir nine wells, increasing accuracy from 65.80% 96.82% compared Production Index (PI) method. technology provides approach evaluating

Language: Английский

A New Productivity Evaluation Method for Horizontal Wells in Offshore Low-Permeability Reservoir Based on Modified Theoretical Model DOI Open Access
Li Li,

Mingying Xie,

Weixin Liu

et al.

Processes, Journal Year: 2024, Volume and Issue: 12(12), P. 2830 - 2830

Published: Dec. 10, 2024

In the early stages of offshore low-permeability oil field development, it is crucial to ascertain productivity production wells select high-production, high-quality reservoirs, which affects design development plan. Therefore, accurate evaluation well essential. Drill Stem Testing (DST) only way obtain true but conducting DST in oilfields extremely costly. This article introduces a novel method for horizontal reservoirs based on an improved theoretical model, relieves limitations traditional methods. Firstly, new model derived, with consideration effects threshold pressure gradient, stress sensitivity, skin factor, and formation heterogeneity fluid flow reservoirs. Then, profiles are classified differences permeability distribution sections. Thirdly, equation modified by calculating correction coefficients maximize model’s accuracy. Based overdetermined concepts existing data, derived this paper x1 = 3.3182, x2 0.7720, x3 1.0327. Finally, proposed successfully applied reservoir nine wells, increasing accuracy from 65.80% 96.82% compared Production Index (PI) method. technology provides approach evaluating

Language: Английский

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