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| A discussion on the interpretation method of gas production profile logging datain the Daniudi low yield gas well |
| PENG Zhen1, LI Jian-Wei2, BAI Bin-Yan2 |
1. Institute of Geophysics and Space Information,China University of Geosciences, Wuhan 730000, China;
2. China Petroleum Engineering Company of SINOPEC, Zhengzhou 450006, China |
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Abstract When the gas yield is low, the gas velocity is not enough to take formation water out of the wellbore. As development time goes on, wellbore fluid will continue to increase, resulting in watering of gas well, which influences gas well productivity. In this paper, the mechanical model of the gas carrying water is established, which is used to calculate the gas flow in the gas carrying water dynamic state. According to the flow pattern characteristics of the upper, middle and lower sections of the wellbore, the three-section calculation method of gas phase flow is presented. The interpretation method is used to explain the log data of gas production profile in the low yield gas well. The interpretation result of the new method is more consistent with the actual production condition, which improves the accuracy of interpretation.
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Received: 29 March 2017
Published: 20 October 2017
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