Self-expansion anti-seepage high-pressure sealing element for petroleum exploitation equipment

Abstract

The invention discloses a self-expansion anti-seepage high-pressure sealing element for petroleum exploitation equipment, and belongs to the field of the petroleum exploitation equipment. Targeted setting according to the characteristics of petroleum can be achieved, on one hand, materials are reinforced, so that the oil resistance to the petroleum is improved; on the other hand, and an oil absorption part is actively arranged, so that once a leakage phenomenon occurs, in-time sensing can be achieved, a specified bidirectional expansion action can triggered, circumferential expansion is performed to extrude a water storage material to release an emulsifier stored in advance, the petroleum is emulsified and decomposed, and corrosion of the petroleum to a sealing material is avoided; up-and-down expansion is performed to promote a peristaltic action of an inner expansion wire bag, the sealing material is forced to expand from inside to improve sealing performance, and the petroleum leakage phenomenon is prevented from further happening; and meanwhile, the bidirectional expansion action has the permanent characteristic, so that the efficient sealing performance can be kept all the time, the situation that the sealing performance is reduced as time goes on is avoided, and the working safety of the petroleum exploitation equipment is improved.

Description

technical field [0001] The invention relates to the field of oil extraction equipment, more specifically, to a self-expanding anti-seepage high-pressure seal for oil extraction equipment. Background technique [0002] For special equipment for oil drilling and production, among the faults of mining equipment, there are mainly four types of faults: damage, aging and loose faults, imbalance, and performance failure caused by blockage and leakage, which are manifested as crack corrosion of parts Problems and problems such as strain deformation, cracking and indentation, while aging problems are mainly reflected in the deterioration and aging of materials, wear and peeling, etc., followed by loose faults, which are mainly reflected in the falling and loosening of parts Wait. [0003] Due to the certain corrosion effect of oil, it will accelerate the aging of the seals in the special equipment for oil drilling and production, and it is prone to performance failure caused by bloc...

AI Technical Summary

Problems solved by technology

[0003] Because oil has a certain corrosion effect, it will accelerate the aging of the seals in the special equipment for oil drilling and production, and it is prone to performance failure caused by blockage and leakage. Once such a failure occurs, the equipment will be out of service, and the safety of life and property will occur. , so the safety of high-pressure seals is worthy of attention. In the prior art, the materials of seals are strengthened, such as enhancing the oil resistance of rubber parts, but as time goes by, the performance of seals will inevitably show different degrees. Generally, technicians can effectively avoid this problem by shortening the maintenance cycle and regular maintenance and replacement. However, such strengthening methods are too passive, and the cost is relatively high, requiring huge manpower and material resources

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