Analytical Comparison of Empirical Two-Phase IPR Correlations for Horizontal Oil Wells

The difficulty for most existing electric/magnetic tomography approaches is the ill-posed characteristic of the inverse problem. Multimode measurement aims to improve the accuracy and efficiency of imaging by fusion of different data forms. We have established an electric-based dual-mode tomography system especially including an innovative image reconstruction algorithm with objectivity. The quality of the reconstructed images is assessed through the comparative study of various algorithms for four typical two-phase flow distributions in oil wells. The most precise result of the newly proposed algorithm indicates the development potential of electric-based dual-mode tomography for well-logging interpretation.

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Predicting Temperatures in Flowing Oil Wells

Journal of Energy Resources Technology ◽

10.1115/1.3227845 ◽

1980 ◽

Vol 102 (1) ◽

pp. 2-11 ◽

Cited By ~ 32

Author(s):

K. C. Shiu ◽

H. D. Beggs

Keyword(s):

Field Data ◽

Empirical Method ◽

Oil Wells ◽

Phase Flow ◽

Temperature Profiles ◽

Fluid Temperature ◽

Two Phase ◽

Design Problems ◽

Gas Lift ◽

Subsurface Temperatures

An empirical method is presented for calculating temperature profiles in flowing oil wells. The method is applicable to wells in which two-phase flow is occurring and in which the inlet fluid temperature is known. It was developed from field data and can be used in design problems which require accurate subsurface temperatures, such as flowing pressure traverse calculation and gas-lift design.

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A Semi-Analytical Method for Simulating Two-Phase Flow Performance of Horizontal Volatile Oil Wells in Fractured Carbonate Reservoirs

Energies ◽

10.3390/en11102700 ◽

2018 ◽

Vol 11 (10) ◽

pp. 2700 ◽

Cited By ~ 5

Author(s):

Suran Wang ◽

Linsong Cheng ◽

Yongchao Xue ◽

Shijun Huang ◽

Yonghui Wu ◽

...

Keyword(s):

Analytical Method ◽

Two Phase Flow ◽

Volatile Oil ◽

Oil Wells ◽

Carbonate Reservoirs ◽

Production Performance ◽

Phase Flow ◽

Two Phase ◽

Fractured Carbonate ◽

Phase Production

Two-phase flow behavior in fractured carbonate reservoirs was investigated due to the importance for geothermal and petroleum resource recovery, such as in this study the phase change of volatile oil. This paper presents a semi-analytical method for accurately modeling two-phase flow behavior and quickly predicting the production performance. The fractured carbonate reservoir was modeled with a dual-porosity model, and the phase change and two-phase flow were modeled using the black oil model. The production of the oil phase was obtained through linearizing and solving the mathematical model. The gas phase production was forecast using the producing gas-oil ratio (GOR), calculated using flowing material balance equations. By comparing the semi-analytical solution to the solution of the commercial numerical simulator and applying it to a field case, the accuracy and practicability of the proposed semi-analytical method could be validated. Based on the semi-analytical model, the influences of several critical parameters on production performance were also analyzed. The proposed model was shown to be efficient in evaluating two-phase production performance of horizontal volatile oil wells. Furthermore, the new technique is able to serve as a useful tool for analyzing two-phase production data and making forecasts for volatile oil wells in fractured carbonate reservoirs.

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