Xinyu Zhou1,2, Jia Huang1,2, Yuchen Qian1,2, Wenli Luo1,2, Lisha Qi3, Jie Wang3, Zhibin Jiang3, Hao Kang4,*
Energy Engineering, Vol.120, No.3, pp. 763-774, 2023, DOI:10.32604/ee.2023.025893
- 03 January 2023
Abstract
Due to the characteristics of reservoir formation, the producing level of low permeability reservoir is relatively very low. It is hard to obtain high recovery through conventional development schemes. Considering the tight matrix, complex fracture system, low production level of producers, and low recovery factor of M block in Xinjiang oilfield, it is selected for on-site pilot test of nitrogen foam flooding. Detailed flooding scheme is made and the test results are evaluated respectively both for producers and injectors. The pressure index, filling degree, and fluid injection profile are found to be all improved in injectors
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