Case Study: Numerical Simulation on Formation Damage in Low-permeability Gas Reservoir

2011 ◽  
Author(s):  
Feng Xu ◽  
Xiao Guo ◽  
Yong Zhang ◽  
Mianmian Wang ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Formation Damage ◽  
Low Permeability ◽  
Gas Reservoir

Numerical Simulation Study of Daqing Wuzhan Low Permeability Gas Reservoir

2013 ◽  
Vol 385-386 ◽  
pp. 474-477
Author(s):  
Yu Feng Lu ◽  
Min Yang ◽  
San Chuan Li ◽  
Bo Lv
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Simulation Study ◽  
Field Data ◽  
Confining Pressure ◽  
Low Permeability ◽  
Production Potential ◽  
Gas Reservoir ◽  
Gas Field ◽  
Porosity And Permeability

Daqing Wuzhan gas field is a deformable low permeability gas filed. Based on the lab study of changing law of porosity and permeability with confining pressure, a numerical simulation model of deformable low permeability gas reservoir is established and is solved by using IMPES method. Comparing with the result of eclipse shows the method is valid. Field example shows the dynamic geological reserves of Wuzhan gas field is low and the new wells should be drilled at the area where there is production potential and larger effective thickness. Comparison of results obtained from different models with field data shows the result considering medium deformation is more reasonable.

scholarly journals A simulation of mud invasion and characteristics of array laterolog responses in a low-permeability gas reservoir: a case study

2017 ◽  
Vol 14 (3) ◽  
pp. 456-465 ◽  
Author(s):  
Yanjiao Jiang ◽  
Jianmeng Sun ◽  
Jianshen Gao ◽  
Pengyun Zhang ◽  
Jiangman Cui
Keyword(s):  
Low Permeability ◽  
Gas Reservoir

scholarly journals Numerical simulation of formation damage by drilling fluid in low permeability sandstone reservoirs

2021 ◽  
Vol 11 (4) ◽  
pp. 1865-1871
Author(s):  
Weiwei He ◽  
Zhiqiang Liu
Keyword(s):  
Numerical Simulation ◽  
Drilling Fluid ◽  
Empirical Relationship ◽  
High Viscosity ◽  
Formation Damage ◽  
Low Permeability ◽  
Drilling Fluids ◽  
Drilling Operation ◽  
Fracture Damage ◽  
Low Permeability Reservoirs

AbstractUnderstanding the formation damage surrounding the well during the drilling operation is the key to predict damage degree and protect the formation in oil/gas reserviors. Based on the core drainage results, we obtained an empirical relationship between the invasion volume of drilling fluid and permeability reduction of formation. Furthermore, the equation is incorporated into a commercial reservior numerical simulation simulator to characterize the behaviors of drilling fluid invasion process. The results show that, although the invasion depth in low permeability reservoirs is short with the range of 1.7–2.5 m, the effect on recovery factor is significant due to the narrow seepage area in the near fracture region. When considering the formation damage, the pressure in the near-fracture damage region drops sharply, leading to a three-stage shape in pressure distribution curve. In addition, we found that high viscosity and low density oil-based slurry and shorter soaking period are conducive to decrease the formation damage during drilling operation. This work reveals the fundamental mechanisms of formation damage in low permeability reservoirs, which is a theoretical basis in formulation drilling fluids and optimization operation parameters.

Case Study: Numerical Simulation of a Tight Gas Reservoir with Multifractured Horizontal Wells

2012 ◽  
Author(s):  
Yang Feng ◽  
Ning Zhengfu ◽  
Liao Xinwei ◽  
Liu Huiqing ◽  
Liao Hongmei
Keyword(s):  
Numerical Simulation ◽  
Horizontal Wells ◽  
Tight Gas ◽  
Gas Reservoir ◽  
Tight Gas Reservoir
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