Constant-temperature heat tracing carbon fiber continuous sucker rod, and preparation device and preparation method thereof

Abstract

The invention belongs to the field of oil extraction equipment in oil fields, and in particular relates to a constant-temperature heat tracing carbon fiber continuous sucker rod, and a preparation device and a preparation method thereof. The sucker rod comprises a carbon fiber core, a glass fiber layer coating the outer side of the carbon fiber core, and an epoxy resin layer coating the outer side of the glass fiber layer, wherein an electric heating strip A is arranged at the center of the carbon fiber core, the carbon fiber core is formed by carbon fiber bundles adhered by resin, the glass fiber layer is composed of a glass fiber winding layer and a longitudinal glass fiber layer, the glass fiber winding layer is wound on the outer side of the carbon fiber core, and glass fibers and carbon fibers forming the longitudinal glass fiber layer are arranged in parallel. The sucker rod provided by the invention is simple in technology and reasonable in layout; according to the preparation method provided by the invention, the multi-layer friction-resistant continuous sucker rod with a constant-temperature heating function and being capable of preventing paraffin precipitation can be produced, and the produced sucker rod has the multiple advantages of light weight, friction resistance, and high torsional strength, shearing strength and tensile strength.

Description

technical field

[0001] The invention belongs to the field of oil production equipment in oilfields, and in particular relates to a constant-temperature heat tracing 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 su...

Examples

Embodiment

[0044] A carbon fiber continuous sucker rod with constant temperature and heat tracing includes a carbon fiber core body 28, an electric heating band A40 is arranged in the center of the carbon fiber core body 28, and the carbon fiber constituting the carbon fiber core body 28 is wrapped around the electric heating band A40. The setting of the heat tracing belt 40 can realize the constant temperature heat tracing of the sucker rod, even if the sucker rod maintains a high and stable temperature, thereby preventing the paraffin in the crude oil from condensing on the sucker rod.

[0045] The carbon fiber core 28 is composed of 150 / 12K --- 242 / 12K carbon fibers bonded by epoxy resin, and the tensile strength of the carbon fiber is ≥4950MPa. The carbon fiber core 28 is spirally wound with an electric heating belt B 45. The wound glass fiber layer A29 and the wound glass fiber layer B34, the wound glass fiber layer B34 is covered with a longitudinal glass fiber layer 30, and the out...

technical field

[0001] The invention belongs to the field of oil production equipment in oilfields, and in particular relates to a constant-temperature heat tracing 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 su...

Examples

Embodiment

[0044] A carbon fiber continuous sucker rod with constant temperature and heat tracing includes a carbon fiber core body 28, an electric heating band A40 is arranged in the center of the carbon fiber core body 28, and the carbon fiber constituting the carbon fiber core body 28 is wrapped around the electric heating band A40. The setting of the heat tracing belt 40 can realize the constant temperature heat tracing of the sucker rod, even if the sucker rod maintains a high and stable temperature, thereby preventing the paraffin in the crude oil from condensing on the sucker rod.

[0045] The carbon fiber core 28 is composed of 150 / 12K --- 242 / 12K carbon fibers bonded by epoxy resin, and the tensile strength of the carbon fiber is ≥4950MPa. The carbon fiber core 28 is spirally wound with an electric heating belt B 45. The wound glass fiber layer A29 and the wound glass fiber layer B34, the wound glass fiber layer B34 is covered with a longitudinal glass fiber layer 30, and the out...

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