Techniques for improving fracture-controlled stimulated reservoir volume in ultra-deep fractured tight reservoirs: A case study of Kuqa piedmont clastic reservoirs, Tarim Basin, NW China

Lei, Qun; Yang, Zhanwei; Weng, Dingwei; LIU, Hongtao; Guan, Bowen; Chen, Bo; Fu, Haifeng; Liu, Zhao-long; Duan, Yonghong; Liang, Tiancheng; Ma, Zeyuan

doi:10.1016/s1876-3804(22)60341-0

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…(1) The penetration capacity of aqueous active substances is improved [34,35] through nano-and microemulsion and other technical means to ensure that the active substances which penetrate the oil layer reach the pore matrix and reduce adsorption losses.…”

Section: New High-efficiency Stimulation Fracturing Fluid Systemmentioning

confidence: 99%

Research and Applications of New Fracturing Technology in Low-Abundance and Greater-Depth Well LN-1 Reservoirs

Shi,

Chen,

Wang

et al. 2024

Processes

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The upper Shasi reservoir in the LN block is characterized by low abundance and greater depth, low porosity, low permeability, and low pressure. Due to high water injection pressure, the LN block has been developed in an elastic way. The natural productivity of oil wells in this block is low, but the productivity can be improved after fracturing. However, the field development effects show that the oil well has high initial production, but rapid decline and rapid pressure drop. At present, the recovery factor of this block is only 0.38%, and it is difficult to realize the economic and effective development of a difficult-to-develop block by conventional fracturing technology. Based on the geological characteristics of the LN block and the fracturing experience of adjacent wells, the fracturing process is optimized and the key fracturing parameters are determined in combination with the sand body distribution and logging curve of well LN-1. Due to the low-pressure coefficient and medium water sensitivity of well LN-1, a new high-efficiency stimulation fracturing fluid system was selected and the formula of the fracturing fluid system was formed. The cluster perforating process is optimized according to reservoir differences, and the perforating “sweet spot” is optimized. Based on the sand body spread point of well LN-1, the high diversion channel technology and the temporary plugging and turning fracturing technology are selected to form a new fracturing and stimulation technology suitable for this kind of oil reservoir. A fracturing test was performed in layers 17# (electrical sequencing number) and 22# of well LN-1. The initial oil production was 12.5 t/d, and the stimulation effect was significantly higher than the 8.3 t/d (general fracturing) of adjacent wells. At present, the well LN-1 has been producing steadily for more than six months, and the results of this work can provide technical guidance for the efficient development of low-abundance and greater-depth oil reservoirs that are difficult to develop.

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Section: New High-efficiency Stimulation Fracturing Fluid Systemmentioning

confidence: 99%

Research and Applications of New Fracturing Technology in Low-Abundance and Greater-Depth Well LN-1 Reservoirs

Shi,

Chen,

Wang

et al. 2024

Processes

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“…With a burial depth of 6500 m, the reservoir boasts a thickness of approximately 300 m, predominantly comprised of medium-fine sandstone lithology. The primary reservoir formation is the Bashijiqike Formation, further divided into three sections: K1bs1, K1bs2 and K1bs3 [10][11][12]. Keshen 8 gas reservoir commenced its development stage in 2014, showcasing a commendable average daily gas production rate of 680,000 cubic meters per well.…”

Section: Introductionmentioning

confidence: 99%

Reservoir Characteristics Analysis of Deep Buried and Low Porosity Gas Reservoir

Liu,

Zhang,

Zhang

et al. 2023

Advances in Transdisciplinary Engineering

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After ten years of efficient development, Keshen 8 gas reservoir has consistently maintained high and stable production, establishing itself as one of the successful development blocks within the Tarim Oilfield. However, in the past three years, water breakthrough has emerged in the western region of the Keshen 8 gas reservoir, posing a substantial risk to its stable production due to water invasion. In order to address this issue and enhance gas reservoir recovery, a reservoir description of sandbody, interlayers, and reservoir properties has been conducted. This paper not only offers a better understanding of the Keshen 8 gas reservoir’s current state but also provides a foundation for formulating effective strategies to mitigate the water breakthrough issue. By leveraging the knowledge gained from the analysis, engineers and researchers can devise targeted measures to improve reservoir management, enhance production techniques, and ultimately maximize the recovery efficiency of the gas reservoir.

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Experimental and simulation study on deep reservoir fracturing technology: A review and future perspectives

Qin,

Zhou,

Wei

et al. 2024

Geoenergy Science and Engineering

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Techniques for improving fracture-controlled stimulated reservoir volume in ultra-deep fractured tight reservoirs: A case study of Kuqa piedmont clastic reservoirs, Tarim Basin, NW China

Cited by 9 publications

References 14 publications

Research and Applications of New Fracturing Technology in Low-Abundance and Greater-Depth Well LN-1 Reservoirs

Research and Applications of New Fracturing Technology in Low-Abundance and Greater-Depth Well LN-1 Reservoirs

Reservoir Characteristics Analysis of Deep Buried and Low Porosity Gas Reservoir

Experimental and simulation study on deep reservoir fracturing technology: A review and future perspectives

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