Continuous sucker rod with communication function and preparation device and preparation method thereof

Abstract

The invention belongs to the field of oil extraction devices for oil fields and especially relates to a continuous sucker rod with the communication function and a preparation device and a preparation method thereof. The device comprises carbon fiber core body, a glass fiber layer wrapping outside the carbon fiber core body and an epoxy resin layer wrapping outside the glass fiber layer; the center of the carbon fiber core body is provided with a ribbon heater; the carbon fiber core body is made of carbon fiber bundles which are bonded with resin; the glass fiber layer is made of a winding glass fiber layer and a vertical glass fiber layer; the winding glass fiber layer spirally winds outside of the carbon fiber core body; the glass fiber and the carbon fiber forming the vertical glass fiber layer are parallelly arranged. The technology of the invention is simple; the layout is reasonable; by means of the method, a multi-layer antifriction continuous sucker rod can be produced; the sucker rod is provided with thermostatic heating function and can prevent wax precipitation; the sucker rod is light, stands wear and tear and has high twisting strength, shearing strength and tensile strength.

Description

technical field [0001] The invention belongs to the field of oil production equipment in oil fields, and in particular relates to a continuous sucker rod with a communication function, 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 rods are se...

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Problems solved by technology

But this kind of sucker rod also has some defects: 1. During the use of the existing carbon fiber sucker rod, there will be wax deposition on the outside, and the wax deposition will cause many negative effects on production; 2. Oil well production During the process, it is often necessary to communicate with downhole electronic equipment. There are two communication methods in the prior art. One way is to penetrate the optical fiber into the hollow sucker rod and fix it, and then lower the sucker rod together with the optical fiber into the well , but the structural strength of the hollow sucker rod is poor, and it is difficult to adapt to deep well operations; another way is to take the sucker rod out of the oil well, and then lower the logging tool into the tubing through the communication cable to realize the communication between the surface and the downhole. Because the sucker rod must be pulled out before using this communication method, the construction process is complicated and the construction cost is high

3. The torsional strength of the existing carbon fiber sucker rod is relatively poor; 4. The direction of the carbon fiber and glass fiber in the existing carbon fiber sucker rod is the same as the length direction of the sucker rod. During production, it should be coated The glass fibers on the outside of the carbon fibers are easily incorporated into the carbon fiber bundles, adversely affecting the strength of the sucker rod

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

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