Openhole Multistage Acid-Fracturing Increases Hydrocarbon Production in Deep Naturally Fractured Carbonate Horizontal Wells in Ta-zhong Gasfield of Tarim Basin, West China

2015 ◽  
Author(s):  
Che Mingguang ◽  
Zhang Fu-xiang ◽  
Wang Yonghui ◽  
Yang Xiangtong ◽  
Zhu Raoyun ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Horizontal Wells ◽  
Hydrocarbon Production ◽  
West China ◽  
Acid Fracturing ◽  
Naturally Fractured ◽  
Fractured Carbonate

scholarly journals Acid Fracturing Optimizing Design and Application in Deep Naturally Fractured Carbonate

2021 ◽  
Vol 687 (1) ◽  
pp. 012114
Author(s):  
Mingguang Che ◽  
Yonghui Wang ◽  
Jianxin Peng ◽  
Changlin Zhou ◽  
Kai Dong
Keyword(s):  
Acid Fracturing ◽  
Naturally Fractured ◽  
Fractured Carbonate ◽  
Optimizing Design ◽  
Design And Application

Acid Fracturing Productivity Model for Naturally Fractured Carbonate Reservoirs

2018 ◽  
Author(s):  
Assiya Ugursal ◽  
Mateus Palharini Schwalbert ◽  
Ding Zhu ◽  
Alfred Daniel Hill
Keyword(s):  
Carbonate Reservoirs ◽  
Acid Fracturing ◽  
Naturally Fractured ◽  
Fractured Carbonate

A New Leakoff Analysis Approach for Acid Fracturing in Naturally Fractured Carbonate Gas Reservoirs

2019 ◽  
Vol 37 (1) ◽  
pp. 139-147
Author(s):  
Linjing Xu ◽  
Guoyong Wang ◽  
Tianyu Liu ◽  
Naizhen Liu ◽  
Shicheng Zhang ◽  
...  
Keyword(s):  
Analysis Approach ◽  
Gas Reservoirs ◽  
Acid Fracturing ◽  
Naturally Fractured ◽  
Fractured Carbonate

Acid Leakoff Mechanism in Acid Fracturing of Naturally Fractured Carbonate Gas Reservoirs

2013 ◽  
Vol 868 ◽  
pp. 682-685 ◽  
Author(s):  
Lin Jing Xu ◽  
Shi Cheng Zhang ◽  
Jian Ye Mou
Keyword(s):  
Fluid Loss ◽  
Natural Fractures ◽  
Gas Reservoirs ◽  
Gas Reservoir ◽  
Acid Rock ◽  
Acid Fracturing ◽  
Naturally Fractured ◽  
Fractured Carbonate ◽  
Acid Leakoff ◽  
Fractured Carbonates

In acid fracturing, excessive acid leakoff is thought to be the main reason that limits fracture propagation and live acid penetration distance, so its very important to do research about acid leak-off on naturally fractured carbonates. we developed a new model in this paper to simulate acid leakoff into a naturally fractured carbonates gas reservoir during acid fracturing. Our model incorporates the acid-rock reaction on the fractured surfaces. Given the information of the Puguang gas reservoir, the model predicts acid filtration and leakoff rate over time. In this study, we found that acid leak-off mechanism in naturally fractured carbonates is much different from that in reservoirs without natural fractures. The leakoff volume is several times of nonreactive acid. Since the acid widened natural fractures, leakoff velocity increase with time firstly , then decrease. While the leakoff velocity of the nonreactive fluid decrease sustained. We also analyze other sensitivity parameters of the acid leakoff. In this model, we explain the acid leakoff mechanism in naturally fractured carbonates, and provide a more accurate calculating of fluid loss.

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