Packer is one of the most common and essential tools in the process of oil recovery, water shutoff and water injection. It is used throughout the whole process of oil and gas exploration and development, especially in the well completion. The main part of the packer is the packer element, which is made of rubber with good elasticity. It is set in the annular space of casing and tubing by means of pressure, which is mainly used to separate the oil layer at different levels, block the water and inject water in different layers. Because packers are used in different wells, packers are faced with high temperature, high pressure, mixed fluids and gases, and aging, damage, tearing and other problems often occur. Therefore, the quality of the packer element, the ability to withstand high temperature and pressure, corrosion resistance directly determines the sealing effect of the packer.

The packer element is mainly made of rubber, and the quality of rubber determines the quality of the packer element. If the rubber quality is good, the elasticity of the packer element is good. Then in the setting process, the elasticity of the packer relatively becomes good, which makes it can be set under a small force.

Because the packer in the wellbore is always in the environment of high temperature and high pressure, and in contact with the mixture of oil, gas and water for a long time, the material of the packer element is easy to age, and its elasticity, scalability and strength are gradually weakened., which makes the bearing capacity of the packer weakened, and the packer is prone to failure. Especially when enter to the middle and late stage of oil-field development, the well condition and subsurface fluid have changed a lot, and the performance of the packer is increasingly required.

In the design of packer element, it is necessary to consider the compression, dimensional accuracy, tolerance and surface roughness. At the same time, the environment of the field and the wellbore should be taken into account.

JST can provide packer elements made of HNBR, NBR, FKM, AFLAS, or reinforced with stainless steel wire mesh or metal insert. Our packer elements are qualified by many top oil service companies. Contact with us if you need them.