CN107091082B

CN107091082B - Heating device for resistivity

Info

Publication number: CN107091082B
Application number: CN201710451146.1A
Authority: CN
Inventors: 胡秀凤; 赵小勇; 唐玉强; 王志强; 李宝鹏; 穴强; 边瑞超; 曹乾洪; 谭璐; 乔宏实
Original assignee: CNPC Bohai Drilling Engineering Co Ltd
Current assignee: China National Petroleum Corp; CNPC Bohai Drilling Engineering Co Ltd
Priority date: 2017-06-15
Filing date: 2017-06-15
Publication date: 2020-06-05
Anticipated expiration: 2037-06-15
Also published as: CN107091082A

Abstract

The invention discloses a heating device for resistivity, which comprises a round rod body formed by splicing an upper half pipe and a lower half pipe, wherein a plurality of springs are arranged between the upper half pipe and the lower half pipe, the upper half pipe and the lower half pipe are connected together through a plurality of countersunk head screws, the upper parts of the countersunk head screws are smooth slide rods, the lower parts of the countersunk head screws are in threaded connection with the lower half pipe, the upper half pipe can move slightly along the smooth slide rods on the upper parts of the countersunk head screws, the upper half pipe is sequentially provided with a short half pipe and n long half pipes from left to right, the lower half pipe is sequentially provided with n long half pipes and a short half pipe from left to right, two short grooves are symmetrically arranged in the short half pipe for placing a shorter heating pipe, and two long grooves are symmetrically arranged in the long half pipe for placing a longer heating pipe. The invention has the advantages of safety, reliability, simple structure and convenient assembly, can cure and package the epoxy resin adhesive of the resistivity antenna shell, can effectively play a role in heating, and can reduce heat loss in the heating process.

Description

Heating device for resistivity

Technical Field

The invention relates to the field of petroleum drilling, in particular to a heating device for resistivity.

Background

At present, a hot air gun is generally adopted for maintaining the resistivity of petroleum drilling equipment, and epoxy resin covered on a resistivity antenna shell is cured and packaged. Because the hot air gun is exposed in the air during operation, the heat loss is high, the epoxy resin curing and packaging speed is low, and the curing and packaging effect cannot be achieved in a cold operation environment, so that the potential quality hazard exists in the resistivity maintenance.

Disclosure of Invention

The invention aims to provide a heating device for resistivity, which can reduce heat loss and has good heating effect.

In order to solve the technical problem, the heat exchanger comprises a round rod body formed by splicing an upper half pipe and a lower half pipe, wherein a plurality of springs are arranged between the upper half pipe and the lower half pipe, the upper half pipe and the lower half pipe are connected together through a plurality of countersunk head screws, the upper parts of the countersunk head screws are smooth rods, the lower parts of the countersunk head screws are in threaded connection with the lower half pipe, the upper half pipe can move slightly along the smooth rods on the upper parts of the countersunk head screws, the upper half pipe is sequentially provided with a short half pipe and n long half pipes from left to right, the lower half pipe is sequentially provided with n long half pipes and a short half pipe from left to right, two short grooves are symmetrically formed in the short half pipes and used for placing shorter heating pipes, and two long grooves are symmetrically formed in the long half pipes and used for placing longer heating pipes.

The invention has the beneficial effects that: the invention has the advantages of safety, reliability, simple structure and convenient assembly, can cure and package the epoxy resin adhesive of the resistivity antenna shell, can effectively play a role in heating, and can reduce heat loss in the heating process.

Drawings

FIG. 1 is a schematic sectional view of a heating apparatus for resistivity according to the present invention;

FIG. 2 is a schematic view of the internal structure of the short half tube of the present invention;

FIG. 3 is a schematic view showing the internal structure of the long half pipe according to the present invention;

FIG. 4 is a cross-sectional view of the spring connection between the upper and lower tube halves of the present invention;

fig. 5 is a cross-sectional view of a countersunk head screw connected between an upper half pipe and a lower half pipe in accordance with the present invention.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 to 5, the heating device for resistivity of the present invention includes a round rod body formed by splicing an upper half pipe and a lower half pipe, wherein a plurality of springs 1 are disposed between the upper half pipe and the lower half pipe, the upper half pipe and the lower half pipe are further connected together by a plurality of countersunk screws 2, wherein the upper portions of the countersunk screws 2 are smooth rods, the lower portions of the countersunk screws are connected to the lower half pipe in a threaded manner, the upper half pipe can slightly move along a smooth rod on the upper portion of the countersunk screws 2, the upper half pipe is sequentially provided with a short half pipe 3 and n long half pipes 4 from left to right, the lower half pipe is sequentially provided with n long half pipes 4 and a short half pipe 3 from left to right, wherein two short grooves 31 are symmetrically disposed inside the short half pipe 3 for placing a shorter heating pipe, and two long grooves 41 are symmetrically disposed inside the long half pipe 4 for placing a longer heating pipe.

The long half pipe and the short half pipe in the upper half pipe and the lower half pipe are arranged in a staggered mode and fixed together through countersunk screws; the heating tube is placed in the long and short grooves of the long half tube and the short half tube, and the spring is placed between the upper half tube and the lower half tube, so that the heating device has a certain amount of expansion; the heating device is placed in the resistivity water hole, the expansion amount of the diameter of the heating device prevents a gap from occurring between the resistivity water hole and the heating device, the heat loss is reduced, and the heating speed is higher and more uniform.

In summary, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can propose other embodiments within the technical teaching of the present invention, but these embodiments are included in the scope of the present invention.

Claims

1. A heating device for resistivity, characterized in that: comprises a round rod body formed by splicing an upper half pipe and a lower half pipe, wherein a plurality of springs (1) are arranged between the upper half pipe and the lower half pipe so as to enable the upper half pipe and the lower half pipe to relatively extend and retract, the upper half pipe and the lower half pipe are also connected together through a plurality of countersunk head screws (2), wherein the upper part of the countersunk head screw (2) is a smooth rod, the lower part of the countersunk head screw is connected on the lower half pipe in a threaded manner, the upper half pipe can move slightly along the smooth rod on the upper part of the countersunk head screw (2), the upper half pipe is provided with a short half pipe (3) and n long half pipes (4) from left to right in turn, the lower half pipe is provided with n long half pipes (4) and a short half pipe (3) from left to right in turn, wherein two short grooves (31) are symmetrically arranged in the short half tube (3) for placing the shorter heating tube, two long grooves (41) are symmetrically arranged in the long half pipe (4) and used for placing a long heating pipe.