Composite insulating material glass fiber reinforced plastic shell

Abstract

The utility model discloses a composite insulating material glass fiber reinforced plastic outer shell, which belongs to the technical field of petroleum logging instruments and is characterized in that positioning grooves are uniformly processed on the circumferential outer surface of a composite insulating material glass fiber reinforced plastic inner barrel shell, and a ceramic chip is arranged in each positioning groove; and a composite insulating material glass fiber reinforced plastic outer barrel shell is arranged on the outer circumference of the composite insulating material glass fiber reinforced plastic inner barrel shell. According to the utility model, the ceramic chip is added between the composite insulating material glass fiber reinforced plastic outer barrel shell and the composite insulating material glass fiber reinforced plastic inner barrel shell, and the ceramic chip has very high hardness and wear resistance and has a thermal expansion coefficient lower than that of resin, so that the ceramic chip is not easy to generate thermal expansion and stress at high temperature; the composite insulating material glass fiber reinforced plastic shell can improve the hardness and wear resistance of the glass fiber reinforced plastic shell, solves the problem that the composite insulating material glass fiber reinforced plastic shell is not wear-resistant, and meanwhile, the ceramic chips have good wear resistance and play a certain supporting role, so that wear between the composite insulating material glass fiber reinforced plastic outer barrel shell and the composite insulating material glass fiber reinforced plastic inner barrel shell is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of petroleum logging instrument, specifically relates to a composite insulating material glass steel shell. BACKGROUND

[0002] The composite insulating material glass steel is a material formed by embedding or wrapping a glass fiber reinforced material in a cured thermosetting resin to form a composite structure. The composite insulating material glass steel is widely used in the process of petroleum logging due to its lightweight, high-strength mechanical properties, corrosion resistance, and other characteristics. Currently, the composite insulating material glass steel is mostly formed by resin infiltrating glass cloth material. This method has good infiltration effect and high glass fiber content of the prepared material, but the laminated surface of the prepared composite insulating material glass steel material is prone to delamination.

[0003] The oil reservoir geological structure in China has diversity, the proven oil field depth is increasing, the exploration and development difficulty is getting bigger and bigger, the demand for high-performance logging equipment is becoming more and more urgent, with the increasing of deep well, super deep well, large displacement deviated well and horizontal well, the requirement for the wear resistance of logging instrument equipment is getting higher and higher. Logging instrument will occur serious wear phenomenon after long time friction contact work, which greatly reduces the performance of the material and needs to be replaced frequently, increasing the operation cost and time. UTILITY MODEL CONTENT

[0004] The utility model wants to overcome the shortcoming of prior art, provide a composite insulating material glass steel shell that improves the hardness and wear resistance of glass steel shell.

[0005] The technical scheme adopted to solve the above technical problems is that: the circumferential outer surface of the composite insulating material glass steel inner cylinder shell is uniformly processed with positioning grooves, each positioning groove is respectively provided with a ceramic sheet, the outer circumference of the composite insulating material glass steel inner cylinder shell is provided with a composite insulating material glass steel outer cylinder shell, the composite insulating material glass steel outer cylinder shell and the composite insulating material glass steel inner cylinder shell are integrated structure, one end of the composite insulating material glass steel outer cylinder shell is threadedly connected with a first metal hoop, the other end of the composite insulating material glass steel outer cylinder shell is threadedly connected with a second metal hoop.

[0006] Further, high-temperature resin glue is coated between the connection between each positioning groove and the corresponding ceramic sheet, and the high-temperature resin glue after high-temperature curing adheres the positioning groove and the ceramic sheet.

[0007] Further, the high-temperature resin glue is high-temperature epoxy resin AB glue.

[0008] Further, the inner circumferential side wall of the composite insulating material glass steel outer cylinder shell is in contact with the outer side of the plurality of ceramic sheets respectively, and the plurality of ceramic sheets are located between the composite insulating material glass steel outer cylinder shell and the composite insulating material glass steel inner cylinder shell.

[0009] Further, the plurality of positioning grooves are arranged in a ring shape and uniformly spaced on the outer surface of the composite insulating material glass steel inner cylinder shell.

[0010] The beneficial effects of the composite insulating material glass steel shell are as follows: (1) the ceramic sheets are added between the composite insulating material glass steel outer cylinder shell and the composite insulating material glass steel inner cylinder shell, the ceramic sheets have high hardness and wear resistance, and the thermal expansion coefficient is lower than that of resin, the ceramic sheets are not easy to produce thermal expansion and stress under high temperature, the hardness and wear resistance of the glass steel shell can be improved, the problem of wear resistance of the composite insulating material glass steel shell is solved, and the ceramic sheets have good wear resistance and play a supporting role, and wear between the composite insulating material glass steel outer cylinder shell and the composite insulating material glass steel inner cylinder shell is avoided.

[0011] (2) the plurality of ceramic sheets arranged in a ring shape and uniformly spaced can effectively reduce the probability of being damaged by impact, even if several ceramic sheets are damaged, the adjacent other ceramic sheets can still play a supporting role, and the working logging instrument is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of one embodiment of the composite insulating material glass steel shell.

[0013] Mark: 1, first metal hoop; 2, composite insulating material glass steel outer cylinder shell; 3, ceramic sheet; 4, second metal hoop; 5, composite insulating material glass steel inner cylinder shell. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0015] As shown in the drawing, Figure 1 the composite insulating material glass steel shell of the embodiment is composed of a first metal hoop 1, a composite insulating material glass steel outer cylinder shell 2, a ceramic sheet 3, a second metal hoop 4 and a composite insulating material glass steel inner cylinder shell 5.

[0016] The outer circumferential surface of the composite insulating material glass steel inner barrel shell 5 is uniformly processed with positioning grooves, and multiple positioning grooves are arranged in a ring shape and uniformly spaced on the outer surface of the composite insulating material glass steel inner barrel shell 5. Each positioning groove is respectively provided with a ceramic sheet 3, the ceramic sheet 3 has good wear resistance and insulation. High-temperature resin glue is coated between the connection between each positioning groove and the corresponding ceramic sheet 3, the high-temperature resin glue is high-temperature epoxy resin AB glue, and the high-temperature resin glue after high-temperature curing adheres the positioning groove and the ceramic sheet 3. The composite insulating material glass steel outer barrel shell 2 is arranged on the outer circumference of the composite insulating material glass steel inner barrel shell 5, the inner circumferential side wall of the composite insulating material glass steel outer barrel shell 2 is respectively in contact with the outer side surface of the multiple ceramic sheets 3, the composite insulating material glass steel outer barrel shell 2 and the composite insulating material glass steel inner barrel shell 5 are integrated structures, the insulation performance of the logging instrument is protected, and the wear resistance of the composite insulating material glass steel outer barrel shell 2 is improved. One end of the composite insulating material glass steel outer barrel shell 2 is threadedly connected with the first metal hoop 1, and the other end of the composite insulating material glass steel outer barrel shell 2 is threadedly connected with the second metal hoop 4.

[0017] The working principle of the embodiment is as follows: when the logging instrument works in the well, the composite insulating material glass steel outer barrel shell 2 is subjected to mud wrapping, rock particle impact and friction, and the multiple ceramic sheets 3 arranged in a ring shape and uniformly spaced can effectively reduce the probability of being damaged by impact, even if several ceramic sheets 3 are damaged, the adjacent other ceramic sheets 3 can still play a supporting role, and the working logging instrument will not be affected. At the same time, when the logging instrument works in the relatively smooth well wall section, the ceramic sheet 3 has good wear resistance and plays a certain supporting role, so as to avoid wear between the composite insulating material glass steel outer barrel shell 2 and the composite insulating material glass steel inner barrel shell 5.

[0018] The above merely describes a preferred embodiment of the present application, but is not intended to limit the protection scope of the present application.

Claims

1. A composite insulating fiberglass shell, characterized in that: A positioning groove is uniformly machined on the outer circumference of the composite insulating fiberglass inner cylinder shell (5), and a ceramic piece (3) is set inside each positioning groove. A composite insulating fiberglass outer cylinder shell (2) is set on the outer circumference of the composite insulating fiberglass inner cylinder shell (5). The composite insulating fiberglass outer cylinder shell (2) and the composite insulating fiberglass inner cylinder shell (5) are an integrated structure. One end of the composite insulating fiberglass outer cylinder shell (2) is threaded to the first metal hoop (1), and the other end of the composite insulating fiberglass outer cylinder shell (2) is threaded to the second metal hoop (4).

2. The composite insulating material fiberglass shell according to claim 1, characterized in that: Each of the positioning grooves is coated with high-temperature resin adhesive at the connection point with the corresponding ceramic piece (3). The high-temperature resin adhesive, after being cured at high temperature, will bond the positioning groove to the ceramic piece (3).

3. The composite insulating material fiberglass shell according to claim 2, characterized in that: The high-temperature resin adhesive is a high-temperature epoxy resin AB adhesive.

4. The composite insulating material fiberglass shell according to claim 1, characterized in that: The inner circumferential sidewalls of the composite insulating fiberglass outer shell (2) are in contact with the outer surfaces of multiple ceramic pieces (3), and the multiple ceramic pieces (3) are located between the composite insulating fiberglass outer shell (2) and the composite insulating fiberglass inner shell (5).

5. The composite insulating material fiberglass shell according to claim 1, characterized in that: Multiple positioning grooves are evenly arranged in a ring on the outer surface of the composite insulating fiberglass inner cylinder shell (5).

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