Design, Operations, and Interpretation of CO2 and Water Injection Test in Low-Permeability Saline Aquifer

2010 ◽  
Author(s):  
Viren Kumar ◽  
Andrew J. Garnett ◽  
Giridhar Kumar Chinagandham ◽  
Simon David James ◽  
bhaskar Trivedi ◽  
...  
Keyword(s):  
Water Injection ◽  
Low Permeability ◽  
Saline Aquifer ◽  
Injection Test ◽  
Water Injection Test

In Situ Test Research for the Affect of Surface Water Seepage on the Ground Fissures Action

2011 ◽  
Vol 243-249 ◽  
pp. 3233-3237
Author(s):  
Xin Sheng Li ◽  
Chao Liu ◽  
Li Wang ◽  
Tian Zhu Xu ◽  
Hua Jun Meng ◽  
...  
Keyword(s):  
Surface Water ◽  
Hanging Wall ◽  
Water Injection ◽  
Differential Settlement ◽  
Injection Test ◽  
Water Seepage ◽  
Ground Fissures ◽  
Two Sides ◽  
Water Injection Test

An in-situ water injection test across Xi’ an ground fissures has been done, in order to simulate the activity of the fissures after water seeps, from October to December, 2005. According to the settlement observed of the bottom of testing pit, it is proven that the surface water seepage speeds the movement of ground fissures. Usually, the soil on the hanging wall of the fissures is more fragmentized than that on the footwall, which is propitious to water seepage. The seepage promotes the interaction between water and soil particles and brings about the differential settlement of two sides of fissures. Therefore, surface water seepage accelerates the activity of the ground fissures.

Factors affecting water injection in the ultra-low permeability sandstone oil reservoirs

2021 ◽  
Author(s):  
Xuefen Liu ◽  
Fei Chen ◽  
Hongwu Xu ◽  
Yazhou Li ◽  
Siyang Wang ◽  
...  
Keyword(s):  
Water Injection ◽  
Oil Reservoirs ◽  
Low Permeability ◽  
Factors Affecting

The Research and Evaluation of Finely Layered Water Injection Standard in Low-Permeability Reservoirs - A Case from Block A in one Low-Permeability Reservoir

2014 ◽  
Vol 1073-1076 ◽  
pp. 2310-2315 ◽  
Author(s):  
Ming Xian Wang ◽  
Wan Jing Luo ◽  
Jie Ding
Keyword(s):  
Oil Recovery ◽  
Water Injection ◽  
Injection Pressure ◽  
Injection Rate ◽  
Low Permeability ◽  
Reservoir Permeability ◽  
Engineering Parameters ◽  
The Common ◽  
Common Problems ◽  
Low Permeability Reservoirs

Due to the common problems of waterflood in low-permeability reservoirs, the reasearch of finely layered water injection is carried out. This paper established the finely layered water injection standard in low-permeability reservoirs and analysed the sensitivity of engineering parameters as well as evaluated the effect of the finely layered water injection standard in Block A with the semi-quantitative to quantitative method. The results show that: according to the finely layered water injection standard, it can be divided into three types: layered water injection between the layers, layered water injection in inner layer, layered water injection between fracture segment and no-fracture segment. Under the guidance of the standard, it sloved the problem of uneven absorption profile in Block A in some degree and could improve the oil recovery by 3.5%. The sensitivity analysis shows that good performance of finely layered water injection in Block A requires the reservoir permeability ratio should be less than 10, the perforation thickness should not exceed 10 m, the amount of layered injection layers should be less than 3, the surface injection pressure should be below 14 MPa and the injection rate shuold be controlled at about 35 m3/d.

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