Study on quantitative optimization of working system of low production and low efficiency oil wells
Konferenz: MEMAT 2022 - 2nd International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation Technology
07.01.2022 - 09.01.2022 in Guilin, China
Tagungsband: MEMAT 2022
Seiten: 3Sprache: EnglischTyp: PDF
Autoren:
Meng, Xiaoling (Exploration & Development Research Institute, Petro China Changqing Oilfield Company, Xi’an, Shaanxi, China & National Engineering Laboratory for Low~permeability Petroleum Exploration and Development, Xi’an, Shaanxi, China & Evaluation & potential excavation Project team of thousand-gas well, Changqing Oil Field Branch Company Ltd., PetroChina, Xi’an, Shaanxi, China)
Ye, Xiaochuang (o.3 Gas Production Plant of Changqing Oilfield Company, PetroChina, Wushenqi, China)
Zhang, Hongbo (CNPC Chuanqing Drilling Engineering Company Limited, Chengdu, Sichuan, China)
Meng, Xuedong (No.1 Gas Production Plant of Changqing Oilfield Company, PetroChina, Yulin, China)
Yang, Min (No.5 Oil Production Plant of Changqing Oilfield Company, PetroChina, Yulin, China)
Inhalt:
For the purpose of reducing production cost and saving energy, it has been widely accepted to carry out interleaved production for low production wells. It is particularly important to determine a reasonable inter well drilling system. Based on the close relationship between the recovery speed of static liquid level and its productivity, the reservoir converted pressure is introduced to preliminarily establish the working system of the oil well. On this basis, considering that the self weight of liquid column inhibits the liquid supply capacity of formation in the process of liquid level recovery, the model of wellbore liquid column height recovery with time is established, and the equation of actual liquid level recovery height with time is fitted, so as to optimize the working system. It has been applied to a production well and achieved good results.