Glass fiber reinforced plastic centralizer

A glass fiber reinforced plastic and centralizer technology, which is applied in drilling equipment, earthwork drilling, drill pipe, etc., can solve the problems of poor corrosion resistance, inability to match glass fiber reinforced plastic casing and tubing, etc.

Active Publication Date: 2008-07-23
辐基斯(青岛)复合材料管道有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to solve the problem that most of the casing and tubing centralizers currently used in oil and gas fields are metal centralizers, which have poor corrosion resistance and cannot be matched with FRP casing and tubing

Method used

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  • Glass fiber reinforced plastic centralizer

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Experimental program
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Effect test

specific Embodiment approach 1

[0005] Specific embodiment one: (see Fig. 1, Fig. 2) the FRP centralizer of this embodiment is made up of four to twelve FRP arch bars 1 and two FRP fixing rings 2, and the two FRP fixing rings 2 are respectively fixed at four to twelve On both ends of a fiberglass bow bar 1. The manufacturing method of the FRP centralizer of this embodiment is: the arched back of the FRP bow 1 faces outward, and is radially fixed on the surface of the mold at equal distances, and the two ends of the FRP bow 1 are impregnated with thermosetting resin. The continuous glass fiber is wound on the pipe body, so that the wound glass fiber forms the FRP fixing ring 2, and the FRP bow strip 1 and the FRP fixing ring 2 are fixed together by curing, and the resin system is cured and released from the mold to become a complete FRP centralizer . There is another method in this embodiment, which is to directly solidify the FRP centralizer on the FRP casing or FRP oil pipe according to the above method ac...

specific Embodiment approach 2

[0006] Specific embodiment two: (refer to Fig. 2) the FRP arch bar 1 of this embodiment consists of six components. The other components, connections and manufacturing methods are the same as those in the first embodiment.

specific Embodiment approach 3

[0007] Specific Embodiment Three: The FRP arch bar 1 of this embodiment consists of eight pieces. The other components, connections and manufacturing methods are the same as those in the first embodiment.

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Abstract

The invention relates to a glass steel stabilizer. Wherein, two glass steel fixing rings (2) are individually mounted on two ends of 4-12 glass steel arc bars (1). The producing method comprises: making the arc back of said glass steel arc bars (1) outward to be distantly radial fixed on the surface of mould; coiling the continuous glass fiber immerged with thermosetting resin on two ends of glass steel arc bars (1), to be solidified to fix the bars (1) and the fixing rings (2), or directly fixing the glass steel stabilizer on the glass steel tube or glass steel oil tube via said method. The invention has lower weight, simple process and lower cost.

Description

technical field [0001] The invention relates to a centralizer. Background technique [0002] With the continuous development of oil and gas fields, many factors such as high water content and high salinity of oil and gas field production fluids have caused the corrosion of steel casings and steel oil pipes that transport the medium to become more and more serious. Therefore, oil and gas fields urgently need a A pipe that can replace steel casing and steel oil pipe to solve the problem of pipeline corrosion and perforation. FRP casings and FRP oil pipes with good corrosion resistance and high pressure resistance have emerged as the times require. Through the wide application of FRP casing and FRP tubing in oil and gas fields. It is found that if the FRP casing and FRP tubing are not protected by centralizing devices, it is easy to cause damage to the FRP casing and FRP tubing during well entry and production, and steel casing and tubing centralizers cannot solve the problem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/10
Inventor 赵岩孙雨虹张兵
Owner 辐基斯(青岛)复合材料管道有限公司
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