Any fracturing design must rely on the appropriate fracturing process technology to implement and ensure. Fracturing technology is mainly used in Wells where the oil and gas reservoir is contaminated or blocked, and where water injection is not effective or ineffective. For oil and gas formations with different characteristics, it is necessary to adopt suitable technology to ensure the smooth execution of fracturing design and obtain good stimulation effect. There are many kinds of fracturing technology, mainly the following kinds.

The packer is fractured in layers

There are many multilayer oil and gas fields in China, which usually need to be fractured by layers. Packer layer fracturing is a kind of fracturing technology widely used at home and abroad, but the operation is complicated and the cost is high. There are four types, depending on the packer and string selected.

1) Single packer stratified fracturing is used to fracture the bottom layer and is suitable for various types of oil and gas formations, especially deep Wells and large-scale fracturing.

2) Dual packer stratified fracturing can be used to fracture any zone in an open oil and gas well.

3) Bridge packer layer fracturing.

4) Slip sleeve packer layer fracturing