The Brass Injection Packers are our product, and the principle of the related packer is introduced here.

To achieve separate production and injection of a single well, there must first be a downhole tool to separate the oil layers. The packer is one of the most important downhole tools used in the casing to seal oil, gas, and water layers by using the deformation of its elastic sealing elements. The packer is connected to the appropriate part or lower part of the tubing string. This tubing string with packers and other downhole tools is called a downhole process string. Use the downhole process string to isolate the oil sleeve annulus and separate the pay zone, and use the downhole tools such as oil and water distributors and sandblasters on the process string to be aligned with the pay zone to control the fluid (or pay zone). The realization of measures such as separate production, separate injection and stratification of a single well in a multi-layered oilfield is an important means to ensure the reasonable development of the oilfield, make it stable and high-yield for a long time, and increase the rate of oil recovery and recovery. In addition, packers are also used in drilling, oil testing, water blocking, thermal recovery, workover, protection casing and other fields. It is precisely because of the unique sealing effect of the packer that it provides a reliable guarantee for the normal production of oil, gas and water wells and the smooth realization of various downhole technological measures. These are several examples of the application of packer process string.

Due to human needs for the exploration of petroleum reserves, drilling and well completion have to be carried out in increasingly harsh environments-extreme high temperature, extreme high pressure, and extremely complex conditions. In order to meet the needs of production, the packer will develop towards high performance, multi-purpose, adapt to a variety of working conditions, long life, simple structure, large diameter, and better expansion and contraction performance of sealing materials.