Practical Well Test Analysis of a Hydraulically Fractured Low Permeability Gas Reservoir: A Case History

被引：0

作者：

Dmour, Hazim N. ^{[1
]}

机构：

[1] Department of Petroleum and Natural Gas Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh

来源：

Journal of King Saud University - Engineering Sciences | 2008年 / 20卷 / 01期

关键词：

Finite conductivity fracture; Gas well performance; Hydraulic fracturing; Low permeability gas reservoir; Modified isochronal test; Non-Darcy effect;

D O I：

10.1016/S1018-3639(18)30855-9

中图分类号：

学科分类号：

摘要：

The primary objective of hydraulic fracturing is to create a propped fracture with sufficient conductivity and length to amplify or at least optimize well performance of low permeability tight gas reservoir. The oil industry has suggested that hydraulically fractured tight gas wells performance is hindered significantly by non-Darcy flow effect. This work will present an investigation of non-Darcy flow effect to hydraulically fractured gas wells performance and provide the development, validation, and application of actual well test analysis for wells with a finite conductivity vertical fracture. Also, this work presents the results obtained in the study of actual post frac modified isochronal test data of gas wells intersected by a finite conductivity vertical fracture in a tight low permeability gas reservoir. In addition, the estimation of reservoir properties and fracture properties were carried out to construct a simple analytical model, which used for rate prediction. The effect of non-Darcy flow in fractures is clearly seen in the tests data and will lead to limiting production especially on higher chokes (after one inch). Therefore, non-Darcy effects should be considered in design of hydraulic fracture treatments, otherwise the design might be far from optimal © 2008 (1429H.) King Saud University

引用

页码：47 / 59

页数：12

共 35 条

[1]

Anderson D., Mattar L., A Systematic and Comprehensive Methodology for Advanced Analysis of Production Data, SPE, 8447, (2003)

[2]

Barenblatt G.E., On Certain Boundary-value Problems for the Equations of Seepage of a Liquid in Fissured Rocks, J. Appl. Math, pp. 460-510, (1963)

[3]

Barenblatt G.E., Zheltov I.P., Kochina I.N., Basic Concepts in the Theory of Homogeneous Liquids in Fissured Rocks, J. Appl. Math., pp. 1286-1303, (1960)

[4]

Belani A.K., Jalali-Yazdi Y., Estimation of Matrix Block Size Distribution in Naturally Fractured Reservoirs, SPE, 18171, (1988)

[5]

Cinco-Ley H., Mavor M.J., Transient Pressure Behavior of Naturally Fractured Reservoirs, SPE, 7977, (1979)

[6]

Cinco-Ley H., Samaniego F.V., Kucuk F., The Pressure Transient Behavior for Naturally Fractured Reservoirs with Multiple Block Size, SPE, 14168, pp. 22-25, (1985)

[7]

Clark K.K., Transient Pressure Testing of Fractured Water Injection Wells, JPT, 1821-PA, pp. 639-643, (1968)

[8]

Crawford G.E., Hagedorn A.R., Pierce A.E., Analysis of Pressure Buildup Tests in Naturally Fractured Reservoirs, JPT, 4558-PA, pp. 1295-1300, (1976)

[9]

DeSwaan O.A., Analytic Solution for Determining Naturally Fractured Reservoir Properties by Well Testing, SPEJ, 5346-PA, pp. 117-122, (1976)

[10]

Fetkovich M.J., Decline Curve Analysis Using Type Curves, JPT, 4629-PA, pp. 1065-1077, (1980)

← 1 2 3 4 →