Anisotropy-based wireline logging data normalization in shale gas horizontal wells and customized formation evaluation in Changning shale gas field

2021 ◽  
Author(s):  
Mao Jie Liao ◽  
Bin Lin ◽  
Zhong Li ◽  
Yang Yang ◽  
Yan Hui Fu ◽  
...  
Keyword(s):  
Shale Gas ◽  
Horizontal Wells ◽  
Data Normalization ◽  
Gas Field ◽  
Formation Evaluation

Comprehensive Analysis of Production Loggings in Fuling Shale Gas Play in China

2021 ◽  
Author(s):  
Yaowen Liu ◽  
Wei Pang ◽  
Jincai Shen ◽  
Ying Mi
Keyword(s):  
Shale Gas ◽  
Mineral Content ◽  
Horizontal Wells ◽  
Organic Content ◽  
Gas Production ◽  
Liquid Loading ◽  
Comprehensive Overview ◽  
Gas Field ◽  
Well Trajectory ◽  
Positive Effect

Abstract Fuling shale gas field is one of the most successful shale gas play in China. Production logging is one of the vital technologies to evaluate the shale gas contribution in different stages and different clusters. Production logging has been conducted in over 40 wells and most of the operations are successful and good results have been observed. Some previous studies have unveiled one or several wells production logging results in Fuling shale gas play. But production logging results show huge difference between different wells. In order to get better understanding of the results, a comprehensive overview is carried out. The effect of lithology layers, TOC (total organic content), porosity, brittle mineral content, well trajectory is analyzed. Results show that the production logging result is consistent with the geology understanding, and fractures in the favorable layers make more gas contribution. Rate contribution shows positive correlation with TOC, the higher the TOC, the greater the rate contribution per stage. For wells with higher TOC, the rate contribution difference per stage is relatively smaller, but for wells with lower TOC, it shows huge rate contribution variation, fracture stages with TOC lower than 2% contribute very little, and there exist one or several dominant fractures which contributes most gas rate. Porosity and brittle minerals also show positive effect on rate contribution. The gas rate contribution per fracture stage increases with the increase of porosity and brittle minerals. The gas contribution of the front half lateral and that of latter half lateral are relatively close for the "upward" or horizontal wells. However, for the "downward" wells, the latter half lateral contribute much more gas than the front half lateral. It is believed that the liquid loading in the toe parts reduced the gas contribution in the front half lateral. The overview research is important to get a compressive understanding of production logging and different fractures’ contribution in shale gas production. It is also useful to guide the design of horizontal laterals and fractures scenarios design.

Formation Evaluation Based on Anisotropy Derived Logging Curve Normalization in Shale Gas Horizontal Wells of China

2021 ◽  
Author(s):  
Hai Jie Zhang ◽  
Jun Wei Pu ◽  
Ling Song Qin ◽  
Tong Tong Luo ◽  
He Fa Yao
Keyword(s):  
Shale Gas ◽  
Horizontal Wells ◽  
Formation Evaluation

scholarly journals Fracturing Parameters Optimizing Simulation of Horizontal Well In WeiYuan Shale Gasfield

2021 ◽  
Vol 2076 (1) ◽  
pp. 012001
Author(s):  
Mingguang Che ◽  
Meng Wang ◽  
Bo Zeng ◽  
Yi Song ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Shale Gas ◽  
Horizontal Well ◽  
Horizontal Wells ◽  
Fluid Volume ◽  
Parameters Optimization ◽  
Geological Model ◽  
Gas Field ◽  
Number Of Clusters ◽  
Pumping Rate ◽  
Lateral Length

Abstract Multistage fracturing and multi-clusters with long lateral fracturing were applied during developing the WeiYuan shale gas field, and the fracturing parameters were variable obviously for the fracturing lateral, perforating clusters, pumping rate, fracturing fluid volume and proppant quality. In this paper, the 3D geological model of a WeiYuan shale gas pad was used to simulate and optimize the fracturing parameters of the shale gas horizontal wells. The simulating results show that there is a reasonable matching relationship between different fracturing lateral length and the perforating clusters, and there is an optimal fluid volume and proppant quality. As the length of the fracturing lateral and the number of clusters increase, the spacing of horizontal wells need to be reduced reasonably. With the purpose of fracturing parameters optimization for WeiYuan shale gas horizontal wells, it is recommended to increase the number of perforation clusters, increase the treating rate, and use the reasonable fluid volume and proppant quality for different fracturing lateral. The research results of this paper have guiding significance for the optimization and treatment of fracturing shale gas horizontal well.

PERFORMANCE ANALYSIS OF MULTI-FRACTURED HORIZONTAL WELLS WITH COMPLEX FRACTURE NETWORKS IN SHALE GAS RESERVOIRS

2019 ◽  
Vol 22 (3) ◽  
pp. 299-320 ◽  
Author(s):  
Guanglong Sheng ◽  
Ting Xu ◽  
Feifei Gou ◽  
Yuliang Su ◽  
Wendong Wang ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Shale Gas ◽  
Horizontal Wells ◽  
Fracture Networks ◽  
Gas Reservoirs ◽  
Complex Fracture ◽  
Shale Gas Reservoirs ◽  
Fractured Horizontal Wells
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