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Carbon fiber hollow heating rod column

A technology of carbon fiber and hollow sucker rods, which is applied in the direction of drill pipes, isolation devices, drilling equipment, etc., can solve the problems that the oil production system cannot adapt, the corrosion of the downhole medium is intensified, and the proportion of deep wells and ultra-deep wells increases, so as to reduce replacement and maintenance costs, and the effect of improving efficiency

Inactive Publication Date: 2020-02-11
大庆市汇成科技开发有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] At present, the mechanical oil recovery commonly used in major oil fields at home and abroad is the rod oil recovery system. As most of the major oil fields in my country have entered the middle and late stage of development, the water content of crude oil has increased, the dynamic fluid level has decreased, and the downhole medium corrosion has intensified. With the increasing proportion of oil wells, the existing oil production system consisting of conventional beam pumping units, conventional steel sucker rods and oil well pumps can no longer adapt to the

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  • Carbon fiber hollow heating rod column
  • Carbon fiber hollow heating rod column

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Embodiment Construction

[0013] Below, in conjunction with accompanying drawing and specific embodiment, the invention is further described:

[0014] see Figure 1-2 , a carbon fiber hollow heating rod column according to an embodiment of the present invention, including a plurality of carbon fiber hollow sucker rods 6 and a metal hollow double-end joint 2, the carbon fiber hollow sucker rod 6 includes a metal joint 3, an adhesive 4, and a sealing ring 5 and a carbon fiber hollow pipe 1, one end of the metal joint 3 is bonded to the outside of one end of the carbon fiber hollow pipe 1 through an adhesive 4, the other end of the metal joint 3 is provided with an internal thread, and the two ends of the metal hollow double-ended joint 2 Both ends of the metal hollow double-ended joint 2 are threadedly connected to the metal joints 3 at one end of the two carbon fiber hollow tubes 1 .

[0015] Further, the end where the metal joint 3 is bonded to the carbon fiber hollow tube 1 is provided with a sealing...

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Abstract

The invention discloses a carbon fiber hollow heating rod column which comprises a plurality of carbon fiber hollow sucker rods and a metal hollow double-end joint. Each carbon fiber hollow sucker rodcomprises a metal joint, an adhesive, a seal ring and a carbon fiber hollow pipe. One end of each metal joint is bonded to the outer side of one end of the corresponding carbon fiber hollow pipe through the adhesive, an inner thread is arranged at the other end of each metal joint, outer threads adaptive to the inner threads of the metal joints are arranged on the outer sides of two ends of the metal hollow double-end joint, two ends of the metal hollow double-end joint are in threaded connection to the metal joints at one ends of the two carbon fiber hollow pipes, and each seal ring is arranged at the end, bonded to the pipe wall of the corresponding carbon fiber hollow pipe, of the corresponding metal joint. The carbon fiber hollow heating rod column has the beneficial effects that thecarbon fiber hollow sucker rods are connected and communicate through the metal hollow double-end joint, so that the problem that the using effect of the carbon fiber hollow sucker rods is affected directly in use of the carbon fiber hollow sucker rods as a result of wax precipitation or viscosity in an oil well is solved, the oil suction efficiency is improved, and the replacement and maintenancecosts are lowered.

Description

technical field [0001] The invention relates to the technical field of oilfield exploitation, in particular to a carbon fiber hollow heating rod column. Background technique [0002] At present, the mechanical oil recovery commonly used in major oil fields at home and abroad is the rod oil recovery system. As most of the major oil fields in my country have entered the middle and late development stages, the water content of crude oil has increased, the dynamic fluid level has decreased, and the downhole medium corrosion has intensified. As the proportion of oil wells increases, the existing conventional beam pumping units, conventional steel sucker rods and pumps can no longer adapt to the oil production system. For this reason, our company has successfully developed the carbon fiber continuous sucker rod. In the use of carbon fiber continuous sucker rods, it is found that when the crude oil in the oil well is waxy or viscous, it will directly affect the use effect of carbon...

Claims

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Application Information

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IPC IPC(8): E21B17/00E21B17/042E21B36/00E21B36/04
CPCE21B17/00E21B17/042E21B36/006E21B36/04
Inventor 张建功
Owner 大庆市汇成科技开发有限公司
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