Application of Fracturing Technology for Temporary Blockage and Turning of Rope Knots in Complex Fault Block Oilfield

DOI

10.2991/978-94-6463-708-3_2How to use a DOI?

Keywords

thin inter-bedded layers; fracturing; temporary blockage and turning; temporary blockage agent; rope knot temporary blockage ball; Sealing performance; Fushan Oilfield

Abstract

The main characteristics of reservoirs in complex fault block oil fields are thin inter-bedded development, small oil layer thickness, and high mud content in the inter-layer. To improve the utilization degree of vertical oil layers, it is necessary to use inter-layer temporary blockage and directional fracturing technology during fracturing construction. Fushan Oilfield is a complex fault block oilfield. Before 2021, soluble balls and particle temporary blockage agents were mainly used in Fushan Oilfield to achieve inter-layer temporary blockage. However, during on-site implementation, there were issues with unclear temporary blockage pressure response and even particle temporary blockage agents blocking the plunger valve of fracturing pump trucks.In the past two years, through the improvement of temporary blockage materials and processes, a new type of knot temporary blockage ball has been used to replace the previous soluble balls and particle temporary blockage agents. At the same time, thin inter-layer perforation optimization, analysis of the erosion law of sand carrying fluid on the perforation hole, and research on the matching of the diameter and quantity of knot temporary blockage balls with the perforation hole have been carried out indoors. The fracturing technology technology for temporary blockage and turning of knots that adapts to reservoir characteristics has been applied in Fushan Oilfield and has achieved good temporary blockage and turning effects as well as increased production.

Copyright

© 2025 The Author(s)

Open Access

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TY  - CONF
AU  - Xiaolan Lv
AU  - Dongxiao Feng
AU  - Zhiyong Zhang
PY  - 2025
DA  - 2025/05/09
TI  - Application of Fracturing Technology for Temporary Blockage and Turning of Rope Knots in Complex Fault Block Oilfield
BT  - Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)
PB  - Atlantis Press
SP  - 4
EP  - 13
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-708-3_2
DO  - 10.2991/978-94-6463-708-3_2
ID  - Lv2025
ER  -