Optimization of the Well Start-Up Procedure and Operating Parameters for ESP Gas Well Dewatering

Xiaolei Wang, Xuezhang Feng, Jinbo Liu, Jiangling Hong, Jinsong Yao, Honglei Liu, Zelin Liu and Guoqing Han ()
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Xiaolei Wang: No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
Xuezhang Feng: No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
Jinbo Liu: No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
Jiangling Hong: No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
Jinsong Yao: Key Laboratory of Petroleum Engineering Education Ministry, China University of Petroleum (Beijing), Beijing 102249, China
Honglei Liu: No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
Zelin Liu: No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
Guoqing Han: Key Laboratory of Petroleum Engineering Education Ministry, China University of Petroleum (Beijing), Beijing 102249, China

Sustainability, 2023, vol. 15, issue 2, 1-12

Abstract: The Electrical Submersible Pump (ESP) systems were deployed in two gas wells for the dewatering of the gas reservoir. However, problems, such as the failure to start up the ESP, and changes in reservoir parameters occurred during the production. For the first problem, the well start-up operation records indicate that the ESP’s gas locking happened. To avoid this, an optimization method of the well start-up procedure for the ESP well with a check valve was correspondingly proposed, which can solve the problem without any workovers. Secondly, based on the working characteristics of the ESP and the nodal analysis method, a set of optimization methods for the operating parameters of ESPs were introduced to achieve the inflow and outflow balance. For one well, the original ESP system was planned to be installed after hydraulic fracturing. Traditionally, the ESP operating parameters were designed based on the production rate. However, in this case, the production rate and the ESP operating frequency were designed simultaneously to maximize the pump efficiency.

Keywords: electrical submersible pump; gas well dewatering; optimization of well start-up procedure; optimization of operating parameters; node analysis method (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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