Research and Application of Tapping Potential Remaining Oil of Low Permeability Reservoir in Hei47 Block, Jilin Oilfield

Abstract:

At present, Hei47 block has already entered high water cut period, and it exists many problems, such as imbalance producing reserves, serious water flooded in main small layer, imperfect injection-production well spacing and so on. Aiming at these problems, this paper analyzed from two aspects of the potential: the first is the potentiality of well pattern thickening which would analyze the reasons of the remaining oil enrichment through four different imperfect patterns, the paper proposes different schemes. For example, this study design new wells in the injection-production incongruous area; As for the area without the control of well net, for example, the study design a horizontal well near the fault where concentrated much remaining oil, and the production conditions are good; The second is making some modification measures in high water cut layer, and perforating other potential small layers, in the light of the wells in low location and is high water cut can be considered to transfer to injection wells. Structural reservoir high-yielding well mainly concentrated in the structural high place, flooded well in the low position, this area is suitable for edge water injection.

• Periodical: Advanced Materials Research (Volume 663)
• Pages: 753-758
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.663.753
• Online since: February 2013
• Authors: Fang Ding, Xu Yang
• Keywords: High Water Cut Well, Horizontal Well, Injection-Production Well Pattern, Remaining Oil Concentration, Structural Pool

References

[1] WU-Yong. Development technology policy adjustment boundary theory and its application on the shaqiu fifth well reservoir. Southwest petroleum institute master's degree thesis.

[2] YU Hong-wen, ZHENG Xing-fan. A detailed infill drilling program in northern part of daqing oil field. ETROLEUM EXPLORAT ION AND DEVELOPMENT. 1992, 19(4):, 52 -60.

[3] ZHAO Lun, FAN Zi-fei, SONG Heng, etc. Technologies for improving producing degree of low permeability carbonate reservoirs. Petroleum explorat ion and development. 2009, 36(4): 508-511.

[4] YU-Gao-ming. Study of Development Effect of Low permeable Heterogeneous Sandstone Reservoirs in Waterflooding. Journal of jianghan petroleum institute, 1997, 19(4) : 59～62.

[5] Yang Shou-shan. The effect of development of peripheral water flooding in steeply dipped reservoirs with high salinity, Petroleum explorat ion and development. 1984(6): 41-48.

[6] LIU Xi-jie, ZHAO De-yong, FENG Cai-qin. The Research and Application of Profile Control for Low Porosity and Poor Permeability Fracture Reservoir in Baolang Oilfield. Journal of Chongqing University of Science and Technology: Natural Science Edition. 2005, 7(1): 20-22.