thermal stress compensator

Model

  The main technical parameters of RB casing thermal stress compensator

5.The thermal stress compensator also considers the adaption of the other equipment, although using the thermal stress compensator, still can use other anti-damage technique such as the lifting the prestress in order to prevent the casing damage integrally.

4.The thermal stress compensator has the thermochemistry stability and corrosion resistance in order to make sure the life span of the oil well.

3.The thermal stress compensator has good air-tightness in order to avoid the leakage during the process of steam injection thermal recovery and well cementation.

2.The inner diameter of the thermal stress compensator should be identical to the inner diameter of the casing. The outside diameter should adapt the drilling well diameter in order to make sure the enough annular space for the well cementation and the quality of the well cementation.

1.The thermal stress compensator can be acted as a part of the well cementation pipe string, and it has the same strength capacity with the other casings.

  technical performance of RB casing thermal stress compensator

  According to the investigation and the research outcome, one of the reason of the defective casing is the screw thread is destroyed and the casing deforms after the casing is heated and pressured. Therefore, fit 1-2 sets of the thermal stress compensator which may have the axial flex deflection. The stress valve in the casing can be controlled in the scope of the yield limit.