Fracture Propogation in Shallow Tight Reservoirs of Fuxian Block

Chang Xinghao

doi:10.3969/j.issn.1001-0890.2013.03.021

Volume 41 Issue 3

May 2013

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Petroleum Drilling Techniques > 2013 > 41(3): 109-113. > DOI: 10.3969/j.issn.1001-0890.2013.03.021

Chang Xinghao. Fracture Propogation in Shallow Tight Reservoirs of Fuxian Block[J]. Petroleum Drilling Techniques, 2013, 41(3): 109-113. DOI: 10.3969/j.issn.1001-0890.2013.03.021

Citation:

Chang Xinghao. Fracture Propogation in Shallow Tight Reservoirs of Fuxian Block[J]. Petroleum Drilling Techniques, 2013, 41(3): 109-113. DOI: 10.3969/j.issn.1001-0890.2013.03.021

Citation:

Chang Xinghao. Fracture Propogation in Shallow Tight Reservoirs of Fuxian Block[J]. Petroleum Drilling Techniques, 2013, 41(3): 109-113. DOI: 10.3969/j.issn.1001-0890.2013.03.021

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Fracture Propogation in Shallow Tight Reservoirs of Fuxian Block

Chang Xinghao

Sinopec Huabei Sub-Company,Zhengzhou,Henan,450006,China

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Received Date: January 06, 2013
Revised Date: May 10, 2013

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Abstract

Abstract

Reservoirs in Yanchang Fomation of Fuxian Block are shallow in buried depth,and complex in fracture propagation and shape.In order to improve fracturing effect in shallow tight sandstone reservoirs,the fracture propagation shape and its effect on production were investigated.On the basis of acoustic emission Kessel Effect experiment results,the analysis was made with fracture monitoring data,the fracturing pressure drop characterization and oil test results after fracturing,show that fracture propagation shape is directly related to the depth and layers of reservoirs,the main fractures created in the layers Chang 2,Chang 3 and Chang 6 were horizontal or complex,but main fractures in the layers Chang 7 and Chang 8 are vertical.Because the horizontal fractures greatly affect the fracturing effect,it is very important to optimize the fracture design and the technique to avoid forming horizontal fractures.One horizontal well fractured with 11 stages,has high output of oil 13.54 t/d,and kept stable oil production of 8.93 t/d currently,indicating good fracturing results.The research results of this article can provide technical reference for other similar shallow reservoirs.
- shallow formation,
- tight reservoir,
- fracture propagation shape,
- Fuxian Block

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