All Title Author
Keywords Abstract

Publish in OALib Journal
ISSN: 2333-9721
APC: Only $99


Relative Articles


Research on Optimization of Reservoir Perforation Position in Offshore Polymer Flooding Oilfield

Remaining Oil Distribution Law and Potential Tapping Strategy of Horizontal Well Pattern in Narrow Oil Rim Reservoir with Gas Cap and Edge Water

Multicomponent polymer flooding in two dimensional oil reservoir simulation

Study on Water Injection Formula by Grey Correlation Method for Offshore Water Flooding Reservoir

Morphological and photosynthetic responses of riparian plant Distylium chinense seedlings to simulated Autumn and Winter flooding in Three Gorges Reservoir Region of the Yangtze River, China

Holistic Approach for Critical System Security: Flooding Prevention and Malicious Packet Stopping

Environmental Impact of Flooding in the Main (Smallwood) Reservoir of the Churchill Falls Power Plant, Labrador, Canada . III. Environmental Impact Zones and Direct and Indirect Changes.

Physical Simulation Experiments of Steam Flooding for Horizontal Well in Ultra-heavy Oil Reservoir

Diversity and Above-Ground Biomass Patterns of Vascular Flora Induced by Flooding in the Drawdown Area of China's Three Gorges Reservoir


Study on the Critical Production Calculation Method of the Water-Flooding Reservoir with Gas Cap

DOI: 10.4236/ojogas.2019.41003, PP. 31-42

Keywords: Water-Flooding, Gas Cap Oilfield, Horizontal Well, Critical Production, Gas Peak Coning, Water Cut

Full-Text   Cite this paper   Add to My Lib


The aim of this paper is to solve the problems that the existing method of critical production of gas cap reservoir is only suitable for single-phase flow, and the method of critical production of gas cap reservoir under water-flooding is still blank. In this paper, the relationships between dynamic and static equilibrium, plane radial flow theory, oil-water infiltration method and three-dimensional seepage field decomposition theory, were applied to study a calculation method for critical production of directional wells and horizontal wells. Furthermore, the effects of different factors on critical output were studied, such as horizontal permeability, ratio of horizontal permeability to vertical permeability, length of horizontal section, effective thickness, viscosity of crude oil and water content etc. Results show that the critical production increases with the increment of the horizontal permeability, the ratio of the vertical permeability to the horizontal permeability, the reservoir thickness and the horizontal well length; when the viscosity of crude oil is small, the critical production decreases first and then increases with the increase of water content; when the viscosity of crude oil is high, the critical production increases continuously with the increase of water content. This study could provide theoretical and technical guidance for changing of the working system of oil wells. It can avoid gas channeling and improve the development effect.


[1]  Muskat, M. and Wycokoff, R.D. (1935) An Approximate Theory of Water-Coning in Oil Production. Transactions of the AIME, 114, 144-163.
[2]  Mayer, H.I. and Garder, A.O. (1954) Mechanics of Two Immiscible Fluids in Porous Media. Journal of Applied Physics, 25, 1400-1406.
[3]  Schols, R.S. (1972) An Empirical Formula for the Critical Oil Production Rate. Erdoel-Erdgas, 88, 6-11.
[4]  Wheatley, M.J. (1985) An Approximate Theory of Oil/Water Coning. SPE Annual Technical Conference and Exhibition, Las Vegas, 22-26 September 1985, SPE-14210.
[5]  Chaperon, I. (1986) Theoretical Study of Coning toward Horizontal and Vertical Well in Anisotropic Formations: Subcritical and Critical Rates. SPE Annual Technical Conference and Exhibition, New Orleans, 5-8 October 1986, SPE-15377.
[6]  Giger, F.M. (1989) Analytic Two-Dimension Models of Water Cresting before Breakthrough for Horizontal Wells. SPE Reservoir Evaluation & Engineering, 4, 409-416.
[7]  Joshi, S.D. (1991) Horizontal Well Technology. PennWell Publishing Company, Tulsa, 59-105.
[8]  B., Guo and Lee, R.L. (1992) Determination of the Maximum Water-free Production Rate of a Horizontal Well with Water-Oil-Interface Cresting. SPE Rocky Mountain Regional Meeting, Casper, 18-21 May 1992, SPE-24324.
[9]  Fan, Z.F. and Lin, Z.F. (1994) A Study of Critical Rate of a Horizontal Well in a Reservoir with Bottom-Water Drive. Petroleum Exploration and Development, 21, 65-70.
[10]  Dou, H.E. (1994) Calculation of Critical Flow Rate for Horizontal Well in Bottom-Water Oil Reservoir. Oil Drilling&Production Technology, 21, 70-75.
[11]  Zhou, D.Y., Jiang, T.W., Zhao, J.Z., et al. (1995) The Uncertainty and Prediction of Critical Output of Horizontal Wells in Bottom Water Reservoir. Drilling & Production Technology, 28, 33-36.
[12]  Li, C.L., Yang, B.X. and Cheng, L.S. (2004) A Method to Determine the Optimum Perforation Place and Height in a Vertical Well of Gas-Water Coning Reservoir. China Offshore Oil and Gas, 16, 105-106.
[13]  Rao, Z., Wu, F. and Li, X.P. (2006) The Method of Ascertaining the Horizontal Well’s Reasonable Position in Gas-Cap Reservoir. Journal of Southwest Petroleum Institute, 28, 7+42-44.
[14]  Lv, A.M. and Yao, J. (2007) Study on Optimal Vertical Position of Horizontal Well in Gas-Cap Reservoir. Oil Drilling & Production Technology, 29, 98-99.
[15]  Wang, D.L., Ling, J.J., Zheng, S.J., et al. (2008) Study on Optimum Vertical Location of Horizontal Wells in Reservoir with Bottom Water and Gas Cap. Fault-Block Oil and Gas Field, 15, 76-79.
[16]  Yao, K., Chen, S.Y., Jiang, H.Q., et al. (2009) Research and Application of Critical Productivity in Water-Driving Development Horizontal Well Reservoirs. Petroleum Geology and Recovery efficiency, 16, 77-80.
[17]  Zhou, K., Tang, H., Lv, D.L., et al. (2010) Optimum Perforated Position for Gas Cap and Bottom Water Reservoir. Well Testing, 19, 8-10.
[18]  Chen, Y.Q. (2010) New Methods to Predict Critical Production Rates in Horizontal Wells with Water and Gas Coning. China Offshore Oil and Gas, 22, 22-26.
[19]  Tu, B., Han, J. and Sun, J. (2014) A Calculation Method of Critical Production for Oil Wells in Thick Reservoirs with Bottom Water. Petroleum Drilling Techniques, 42, 107-110.
[20]  Yuan, L., Li, X.P. and Liu, P.P. (2015) New Method for Determining Critical Rate of Horizontal Well in Gas Cap and Bottom Water Reservoirs. Lithologic Reservoirs, 27, 122-126.
[21]  Yuan, L., Li, X.P. and Yan, Y.C. (2015) New Method for Determination of Horizontal Well Critical Output in Bottom-Water Reservoir. Natural Gas and Oil, 33, 65-68.
[22]  Zhang, Y., Tang, L.D., Xu, Y.D., et al. (2017) Research on Critical Production of Heavy Oil Reservoir with Bottom Water. Natural Gas and Oil, 35, 72-75.


comments powered by Disqus