Study on the Nonlinear Flow Percolation Law in Low Permeability Carbonate Reservoir of HF Oilfield

Abstract:

With the development of the global oil industry,the production of the normal or high permeability reservoirs decline rapidly. Therefore, more and more low permeability reservoirs are used to the production stimulation. The oilfields overseas make great contribution to CNPC. The HF oilfield is one oilfield that the CNPC have in overseas. The HF oilfield is mainly the low permeability carbonate reservoirs which make it not easy to economically exploit. Due to the reason that the low permeability carbonate reservoirs present small porosity and the fluid’s flow situation in the low permeability carbonate reservoirs, the flow doesn't obey the Darcy's law. Thus it is greatly necessary to study the non-Darcy percolation characteristics. In this paper, the HF ‘s low permeability is tested and the threshold pressure gradient test is finished ,according to the experiment results, the nonlinear percolation ‘s law ,which is suited to HF-oil field , is illustrated and the reservoir classification is achieved.

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 5065-5070
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.5065
• Online since: September 2014
• Authors: Shuai Jiang*, Zheng Ming Yang, Xue Wei Liu, Meng Ting Wang, Qian Zhang
• Keywords: Low-Permeability Reservoir, Nonlinear‘s Non Darcy Percolation, Reservoir Classification, Threshold Pressure Gradient

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