Effect and cognition of hole filling measures in ultra-low permeability reservoir block

Ziwei Li,Z Tan,L Liu

doi:10.1051/e3sconf/202132901028

Abstract

In this paper, based on the application of water-flooded layer interpretation plate, multi-well comparison, and the combination of dynamic and static analysis methods to optimize the well selection of fill hole wells, and through the analysis of the production of fill hole wells in **block in recent years, we summarize the relationship between fill hole effect and fill hole well injection and extraction well spacing, connection relationship, water content before the measure, and the relationship between fill opening thickness of the patch opening, so as to provide reference for the next step to continue to carry out fill hole work and find fill hole potential.

Highlights

In this paper, based on the application of water-flooded layer interpretation plate, multi-well comparison, and the combination of dynamic and static analysis methods to optimize the well selection of fill hole wells, and through the analysis of the production of fill hole wells in **block in recent years, we summarize the relationship between fill hole effect and fill hole well injection and extraction well spacing, connection relationship, water content before the measure, and the relationship between fill opening thickness of the patch opening, so as to provide reference for the step to continue to carry out fill hole work and find fill hole potential
Since the old block had been developed with water injection for more than 10 years at the time of encryption, the distribution of subsurface oil and water was complicated and the water flooding condition in some well areas was serious, the layers with the same oil and water layer, a higher degree of water flooding and a higher risk of hole injection explained at the time of encryption well injection were not injected
3.1 In encryption, the small layer that is not shot open can be selectively filled with holes, which can achieve a certain effect of oil increase

Summary

Introduction

In this paper, based on the application of water-flooded layer interpretation plate, multi-well comparison, and the combination of dynamic and static analysis methods to optimize the well selection of fill hole wells, and through the analysis of the production of fill hole wells in **block in recent years, we summarize the relationship between fill hole effect and fill hole well injection and extraction well spacing, connection relationship, water content before the measure, and the relationship between fill opening thickness of the patch opening, so as to provide reference for the step to continue to carry out fill hole work and find fill hole potential. 2.1 Small injection and extraction well spacing, After hole filling to increase the liquid and oil effect becomes better, But there is a risk of rising water content.

Results

Conclusion