Research Progress and Development Trend of Numerical Simulation Technology for Unconventional Wells

GAO Da-peng; LIU Tian-yu; WANG Tian-jiao; YUAN He; WANG Dong>; LI Yong; LIU Ying-bo

doi:10.3879/j.issn.1000-0887.2015.12.003

Volume 36 Issue 12

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Article Navigation > Applied Mathematics and Mechanics > 2015 > 36(12): 1238-1256

GAO Da-peng, LIU Tian-yu, WANG Tian-jiao, YUAN He, WANG Dong>, LI Yong, LIU Ying-bo. Research Progress and Development Trend of Numerical Simulation Technology for Unconventional Wells[J]. Applied Mathematics and Mechanics, 2015, 36(12): 1238-1256. doi: 10.3879/j.issn.1000-0887.2015.12.003

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Research Progress and Development Trend of Numerical Simulation Technology for Unconventional Wells

doi: 10.3879/j.issn.1000-0887.2015.12.003

¹PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, P.R.China;²PetroChina Beijing Petroleum Machinery Co., Beijing 100083, P.R.China;³SINOPEC Shengli Oilfield, Dongying, Shandong 256600, P.R.China

Funds: The National Science and Technology Major Project of China（2011ZX05010-002）

Received Date: 2014-12-10
Rev Recd Date: 2015-10-27
Publish Date: 2015-12-15

Abstract

Abstract

Compared with the numerical simulation of conventional wells, the numerical simulation of unconventional wells focuses on the characterization of multiphase flow in vertical and horizontal wellbores, the explanation of the velocity difference between different phases and the pressure loss due to friction, hydrostatic force, acceleration and slip of each phase, and the simulation of the downhole flow control equipment and other complex phenomena. The research progress and existing defects of the numerical simulation techniques for unconventional wells were summarized from 7 aspects including the flow equations for complex-structure wells, the multiphase pipe flow and well-reservoir coupling simulation, the multi-segment well model, the downhole flow control device simulation, the near-wellbore area coarsening, the downhole complex phenomena simulation and the embedded discrete fracture model. The wellbore-reservoir numerical coupling simulation based on the multi-segment well model, the extended well model and the reservoir model coupling simulation, the fluid-structure coupling numerical simulation, the downhole monitoring control equipment simulation, and the multi-segment fracture complex-structure well simulation, make the development trend in the future.
- numerical reservoir simulation,
- unconventional well,
- multi-segment well model,
- coupling simulation,
- embedded fracture model,
- complex flow regime

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References

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