Cuttings Bed Height Prediction in Microhole Horizontal Wells with Artificial Intelligence Models

Yaotu Han, Xiaocheng Zhang, Zhengming Xu (), Xianzhi Song, Weijie Zhao and Qilong Zhang
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Yaotu Han: State Key Laboratory of Offshore Oil Exploitation, Beijing 100028, China
Xiaocheng Zhang: State Key Laboratory of Offshore Oil Exploitation, Beijing 100028, China
Zhengming Xu: School of Energy Resources, China University of Geosciences (Beijing), Beijing 100083, China
Xianzhi Song: College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Weijie Zhao: State Key Laboratory of Offshore Oil Exploitation, Beijing 100028, China
Qilong Zhang: State Key Laboratory of Offshore Oil Exploitation, Beijing 100028, China

Energies, 2022, vol. 15, issue 22, 1-15

Abstract: Inadequate drill cuttings removal can cause costly problems such as excessive drag, lower rate of penetration, and even mechanical pipe sticking. Cuttings bed height is usually used to evaluate hole-cleaning efficiency in horizontal wells. In this study, artificial intelligence models, including artificial neural network (ANN), support vector regression (SVR), recurrent neural network (RNN), and long short-term memory (LSTM), were employed to predict cuttings bed height in the well-bore. A total of 136 different tests were conducted, and cuttings bed height under different conditions were measured in our previous study. By training four different artificial intelligence models with the experiment data, it was found that the ANN model performed best among other artificial intelligence models. The ANN model outperformed the dimensionless cuttings bed height model proposed in our previous study. Due to the amount of data points, the memory ability of RNN and LSTM models has not been entirely played compared with the ANN model.

Keywords: cuttings bed height; artificial intelligence model; horizontal well; dimensionless model; solid-liquid flow (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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