Abstract
The Donghe 6 block in Tarim oilfield has the problems of ultra-deep, high temperature, high pressure, high salinity, low permeability, strong water sensitivity, low oil production, low water cut and low recovery rate of recoverable reserves relying on natural energy depletion. Based on the brief introduction of the geological characteristics of the block, the basic situation of the single well and the review of the old wells in the Donghe 6 well group were analyzed, with the emphasis on the nitrogen injection test. Combined with the actual situation of Donghe 6 well group, the feasibility of CO2 flooding in ultra-deep, high temperature, high pressure and high salt reservoir group was demonstrated by continuously injecting supercritical carbon dioxide into the high part of the structure to give full play to the gravity assisted flooding effect of injected gas. The demonstration results show that the Donghe 6 well group adopts the continuous gas drive mode of one injection and two production of pure carbon dioxide, with a cumulative injection of 16000 tons of liquid carbon dioxide, and a predicted cumulative oil production of 26800 tons in five years, with a stage increase of 4.9% in recovery, and considerable economic benefits. This achievement can be popularized and applied to carbon dioxide flooding in other similar reservoirs.
Copyright 2023, IFEDC Organizing Committee.
This paper was prepared for presentation at the 2023 International Field Exploration and Development Conference in Wuhan, China, 20-22 September 2023.
This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Technical Team and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Technical Committee its members. Papers presented at the Conference are subject to publication review by Professional Team of IFEDC Technical Committee. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of IFEDC Organizing Committee is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Li, S.L., Zhou, S.X., Du, J.F., et al.: Review and prospects of gas injection technology for enhanced oil recovery at home and abroad. Oil Gas Geol. Recov. 9(2), 1–6 (2002)
Guo, P., Yuan, Z.W., Liao, G.Z.: Current status and inspiration of gas injection and oil drive technology development. Nat. Gas. Ind. 29(8), 92–96 (2009)
Ji, B.Y.: Progress and prospects of recovery enhancement technology in oil fields at home and abroad. Pet. Nat. Gas Geol. 33(01), 111–117 (2012)
Tang, Y., Sun, L., Zhou, Y., et al.: Evaluation of mixed-phase drive mechanism of hydrocarbon-rich gas condensate/evaporation injection. Pet. Explor. Dev. 32(02), 133–136 (2005)
Deng, X.X., Chen, T., Zhao, J., et al.: Simulation and prediction of gas injection method in Bakken reservoir. J. Southwest Pet. Univ. (Nat. Sci. Edn.) 43(05), 104–112 (2021)
Qi, H., Li, Y.Q., Chen, X.L., et al.: Characteristics of low-temperature oxidation of oxygen-reduced air drive for light crude oil. Pet. Explor. Dev. 48(6), 1210–1217 (2021)
Zhu, C.S., Cheng, L.S.: Evaluation of CO2 drive for improving crude oil recovery in low permeability reservoirs. Drill. Ind. 30(6), 55–57+60 (2007)
Zheng, W.K., Yang, Y., Lv, G.Z., et al.: CO2 drive injection coupled with recovery enhancement technology. J. **’an Univ. Pet. (Nat. Sci. Edn.) 36(5), 77–82 (2021)
Li, L., Zheng, Z.G., Yang, C.W., et al.: Characteristics of supercritical CO2 oil drive and crude oil utilization capacity in ultra-low permeability reservoirs. Sci. Technol. Eng. 21(29), 12551–12558 (2021)
Zhang, C.B.: A theoretical model for CO2 drive recovery evaluation of low permeability reservoirs. Oil Gas Geol. Recov. 28(4), 131–139 (2021)
Zhou, X., Zhou, D., Deng, J.S., et al.: Experimental study of supercritical CO2 drive to improve recovery of tight reservoirs. Special Oil Gas Reservoirs 28(3), 118–123 (2021)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Tao, Zw. et al. (2024). Carbon Dioxide Flooding Feasibility of Well Groups in Ultra-deep High Temperature, High Pressure and High Salt Reservoirs - An Example from the Donghe 6 Block of Tarim Oilfield. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2023. IFEDC 2023. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-97-0268-8_46
Download citation
DOI: https://doi.org/10.1007/978-981-97-0268-8_46
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-97-0267-1
Online ISBN: 978-981-97-0268-8
eBook Packages: EngineeringEngineering (R0)