Tag Archives: скважинное оборудование
Currently, there are a huge number of packers type of tool for conducting geological and technical measures in open hole. But despite the great diversity of types of packers, all united by the presence of common deficiencies, namely:
– not reliable sealing packer;
– the destruction of the sealing element in rubber re-planting packer in the wellbore;
– inadvertent operation of the packer during tripping operations (SPO)
– the probability of sticking packer in the wellbore.
The above disadvantages packers may cause complications in the wells that increases the downtime or loss of the well and consequently leads to high cost oil and gas companies.
To address the identified shortcomings in the packer, packer radically new design for the open hole was developed. Special attention was given to the design of sliding bearings to prevent leaking of the sealing rubber member due to occurrence of the pressure difference, and provide further breakdown reliable packer. Increasing the number of cycles stall rubber sealing element is achieved by adding a rubber composition belting cord, leading to increasing its stiffness, with slightly decreased rubber elasticity. Specially designed landing node allowed to exclude spontaneous land packer during tripping, thereby eliminating the possibility of complications during tripping. As a result of constructive upgrades for openhole packer column significantly decreased the percentage of no packer leakage, as was improved sealing rubber elements and node responsible for the safety of these elements.
Thus, to the ins developed packer designs include the preservation of the performance of the sealing rubber member by applying belting cord in the rubber and the mechanism of sliding bearings, which allows multiple re-planting packer in open hole. Just packer design allows exclusion of unauthorized operation during tripping. Another advantage of the upgraded design is to improve the packer tightness when working in wells with a large pressure drop.