A multi-layer wear-resistant carbon fiber continuous sucker rod and its preparation device and preparation method

Abstract

The invention belongs to the field of oil field oil extraction equipment, and particularly relates to a multi-layer abrasion-resistant carbon fiber continuous sucker rod, a making device and a making method. The multi-layer abrasion-resistant carbon fiber continuous sucker rod comprises a carbon fiber core body, a glass fiber layer wrapping the carbon fiber core body and an epoxy resin layer wrapping the glass fiber layer, the carbon fiber core body is composed of carbon fiber beams bonded through resin, the glass fiber layer is composed of a winding glass fiber layer and a longitudinal glass fiber layer, the winding glass fiber layer winds around the outer side of the carbon fiber core body in a spiral mode, and glass fibers and carbon fibers which form the longitudinal glass fiber layer are arranged in parallel. According to the multi-layer abrasion-resistant carbon fiber continuous sucker rod, the making device and the making method, the technology is simple, layout is reasonable, the multi-layer abrasion-resistant carbon fiber continuous sucker rod which has the advantages of being light in weight, resistant to abrasion, high in torsional strength, shear strength and tensile strength and the like can be produced, the sucker rod is applied to oilfield production, the use function is guaranteed, the energy saving and efficiency improvement effects can be achieved simultaneously, and the benefit is significantly increased.

Description

technical field [0001] The invention belongs to the field of oil production equipment in oil fields, and in particular relates to a multi-layer wear-resistant carbon fiber continuous sucker rod, a preparation device and a preparation method. Background technique [0002] The sucker rod is a kind of equipment commonly used in the oil production process. During oil production, the pump rod of the downhole oil pump is driven to reciprocate up and down by the sucker rod, so as to pump the oil and other liquids in the formation to the ground. During use, it is usually necessary to connect the sucker rod to thousands of meters. In this case, the sucker rod has to bear its own suspension weight and the load of the oil pump, so it bears a relatively large pulling force. Existing sucker rods are mostly made of steel, but steel has physical defects such as heavy weight, easy corrosion, and easy wear, which makes the loss of sucker rods high. In addition, most of the existing sucker r...

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Problems solved by technology

But also there are some defects in this sucker rod: 1, the torsional strength of existing carbon fiber sucker rod is relatively poor; The length direction is the same. During production, the glass fiber that should be coated on the outside of the carbon fiber is easily mixed into the carbon fiber bundle, which will adversely affect the strength of the sucker rod.

3. The outer layer of the existing carbon fiber sucker rod is pure epoxy resin layer, which has poor wear resistance

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