Electric submersible pump behavior for pumping non-Newtonian fluids

Langbauer, Clemens; Pratscher, Hans-Peter; Ciufu, Alexandru-Cosmin; Hoy, M.; Marschall, Christoph; Pongratz, Reinhard

doi:10.1016/j.petrol.2020.107910

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…At present, the principle of gas drainage is mainly from the gas dynamics method [4] , physicochemical method [5] , and artificial lifting method [6] . In terms of broad categories, it was mainly divided into the preferred tubing column [7] , foam drainage [8] , gas lifting [9] , jet pump [10] , plunger [11] , machine pumping and drainage [12] , electro-submersible pumps IOP Publishing doi:10.1088/1742-6596/2659/1/012033 2 [13 ] (including electro-submersible centrifugal pumps and electro-submersible progressive cavity pumps), and other methods. However, in high water content gas wells, due to the electric pump running current fluctuation and serious airlock, it is easy to occur low load, underload, or even no-load operation, for example, control parameters were not set reasonably and airlock phenomenon cannot be found promptly, which would lead to no liquid flow in the pump.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Gas-liquid Separation Experiment of Electric Pump Drainage and Gas Extraction Unit in High Gas-liquid Ratio Gas Wells

Zhang,

Jing,

et al. 2023

J. Phys.: Conf. Ser.

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Given the prominent problem of water in the Tarim basin of China with high formation temperature and large water production, a preferred scheme of electric pump drainage and gas extraction unit for gas fields with a high gas-liquid ratio is proposed by the mechanical principle and structural design method. Then, the corresponding electric pumps were developed, and the drainage and gas extraction scheme of a permanent magnet electric pump unit with gas-liquid separation in the way of an inverted deflector is designed. Through indoor experiments simulating the downhole gas-liquid ratio environment, the gas-liquid separation ability and adaptability of the design scheme under different good conditions are verified. The results obtained demonstrate that the cable connection process can meet the requirements of high-pressure resistance (≥25 MPa), and the gas-liquid separation effect is very good in vertical wells by adopting the inverted deflector scheme. The separation effect exceeded 90% under different working conditions (production from 30 to 150 m3/day and inhalation gas-liquid ratio from 50% to 95% and even higher) in the experiment with high gas content. The results will promote the gas recovery rate of high gas-liquid ratio gas fields and improve extraction efficiency.

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Section: Introductionmentioning

confidence: 99%

Investigation of Gas-liquid Separation Experiment of Electric Pump Drainage and Gas Extraction Unit in High Gas-liquid Ratio Gas Wells

Zhang,

Jing,

et al. 2023

J. Phys.: Conf. Ser.

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“…Electric submersible pumps are a widely used artificial lifting tool for deep-sea oil operations [1], and their fault identification can effectively monitor the safety of production and effectively prevent the occurrence of major accidents. Carrying out fault identification of ESPs can predict or discover equipment faults in advance, so that timely measures can be taken to keep the equipment in the best condition and maintain the integrity of the equipment.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, when the ESP's failure data are limited and imbalanced in number, it becomes especially important to correctly identify the few failure samples. To identify faults in ESPs with limited samples and imbalanced distribution, the following issues are addressed: (1) how to extract the information features that are more representative of the minority fault data in the limited data, to reduce the burden on the model and increase the recognition effect of the model; (2) how to deal with the problem that the information contained in a minority of fault samples easily gets submerged in the majority of normal information, which easily leads to a high recognition error rate of the classifier for fault samples with a small amount of data.…”

Section: Introductionmentioning

confidence: 99%

Fault Identification of Electric Submersible Pumps Based on Unsupervised and Multi-Source Transfer Learning Integration

Yang

Chen

et al. 2022

Sustainability

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The ratio between normal data and fault data generated by electric submersible pumps (ESPs) in production is prone to imbalance, and the information carried by the fault data generally as a minority sample is easily overwritten by the normal data as a majority sample, which seriously interferes with the fault identification effect. For the problem that data imbalance under different working conditions of ESPs causes the failure data to not be effectively identified, a fault identification method of ESPs based on unsupervised feature extraction integrated with migration learning was proposed. Firstly, new features were extracted from the data using multiple unsupervised methods to enhance the representational power of the data. Secondly, multiple samples of the source domain were obtained by multiple random sampling of the training set to fully train minority samples. Thirdly, the variation between the source domain and target domain was reduced by combining weighted balanced distribution adaptation (W-BDA). Finally, several basic learners were constructed and combined to integrate a stronger classifier to accomplish the ESP fault identification tasks. Compared with other fault identification methods, our method not only effectively enhances the performance of fault data features and improves the identification of a few fault data, but also copes with fault identification under different working conditions.

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Mechanical analysis of radial hydraulic force in oil recovery by sliding vane pump

Wang

Cao

et al. 2022

Journal of Petroleum Science and Engineering

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Electric submersible pump behavior for pumping non-Newtonian fluids

Cited by 3 publications

References 7 publications

Investigation of Gas-liquid Separation Experiment of Electric Pump Drainage and Gas Extraction Unit in High Gas-liquid Ratio Gas Wells

Investigation of Gas-liquid Separation Experiment of Electric Pump Drainage and Gas Extraction Unit in High Gas-liquid Ratio Gas Wells

Fault Identification of Electric Submersible Pumps Based on Unsupervised and Multi-Source Transfer Learning Integration

Mechanical analysis of radial hydraulic force in oil recovery by sliding vane pump

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