CN210829157U

CN210829157U - Wellhead cable sealing device for oil pipe electric heating paraffin removal process

Info

Publication number: CN210829157U
Application number: CN201921504055.0U
Authority: CN
Inventors: 王彬; 郝正强; 田刚
Original assignee: Tianyi Industry Co ltd Liaonin
Current assignee: Tianyi Industry Co ltd Liaonin
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-06-23
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses an oil pipe electrical heating paraffin removal technology well head cable sealing device belongs to oil well equipment technical field. The cable is fixed outside the tubing hanger in the pit, the design of side opening is adopted to the well head tubing hanger, the cable is drawn forth through the upper port of the big cross of sleeve pipe, well head and the side opening of well head tubing hanger in the pit, the big cross of well head is connected with the well head valve, be provided with cable sealing device between the side opening of well head tubing hanger and the cable in the pit. This oil pipe electrical heating paraffin removal process well head cable sealing device simple structure, and reasonable in design, the cable is drawn forth through the big cross-joint upper shed of well head, well head oil pipe hanger side opening in the pit, need not pass through the well head valve, has ensured the integrality of oil recovery well head, and in addition, cable sealing device carries out that the cable is fixed and sealed in the pit, and it need not here cut off and directly wear out to draw forth the cable, has reduced the well head accessory, has simplified the well head technology, has reduced the potential safety hazard, has made things convenient for the field installation.

Description

Wellhead cable sealing device for oil pipe electric heating paraffin removal process

Technical Field

The utility model relates to an oil pipe electrical heating paraffin removal technology well head cable seal device belongs to oil well equipment technical field.

Background

The oil pipe electric heating paraffin removal process is applied to partial oil fields and achieves better application effect.

However, the original wellhead cable leading-out and sealing mode of the process has certain potential safety hazard, as shown in fig. 1, an underground cable e of the original process is fixed outside an underground oil pipe a, is led out from an underground casing b through one side of a wellhead large four-way joint c, a wellhead valve d, a wellhead tee joint f and a slip g, is connected with a wellhead cable sealer, is subjected to sealing and insulating treatment, and is connected with an external cable through the wellhead cable sealer. This way of cable exit and sealing presents the following problems:

1. when the underground cable e is led out, the underground cable e is inconvenient to install on site;

2. the well head valve d must be normally opened, and if the well head is not operated properly, the cable is easy to cut off;

3. the well head has more fittings and complex process, and the leading-out side of the well head cable is longer and unsafe.

Disclosure of Invention

To the above problem, the to-be-solved technical problem of the utility model is to provide an oil pipe electrical heating paraffin removal technology well head cable sealing device.

The utility model discloses an oil pipe electrical heating paraffin removal technology well head cable seal device, it contains oil pipe, sleeve pipe, the big cross of well head, well head valve, well head tubing hanger, cable seal device and cable in the pit, the cable is fixed outside the oil pipe in the pit, well head tubing hanger adopts the side opening design, the cable is drawn forth through the side opening of the last mouthful of the big cross of sleeve pipe, well head and well head tubing hanger in the pit, the big cross of well head is connected with the well head valve, be provided with cable seal device between the side opening of well head tubing hanger and the cable in the pit.

Compared with the prior art, the beneficial effects of the utility model are that: this oil pipe electrical heating paraffin removal process well head cable sealing device simple structure, and reasonable in design, the cable is drawn forth through the big cross-joint upper shed of well head, well head oil pipe hanger side opening in the pit, need not pass through the well head valve, has ensured the integrality of oil recovery well head, and in addition, cable sealing device carries out that the cable is fixed and sealed in the pit, and it need not here cut off and directly wear out to draw forth the cable, has reduced the well head accessory, has simplified the well head technology, has reduced the potential safety hazard, has made things convenient for the field installation.

Drawings

FIG. 1 is a schematic structural diagram of the prior art;

fig. 2 is a schematic structural diagram of the present invention.

Reference numerals: the device comprises an oil pipe 1, a casing 2, a wellhead large four-way joint 3, a wellhead valve 4, a wellhead oil pipe hanger 5, a cable sealing device 6 and an underground cable 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the following technical solutions are adopted in the present embodiment: it contains oil pipe 1, sleeve pipe 2, the big cross 3 of well head, well head valve 4, well head tubing hanger 5, cable seal device 6 and cable 7 in the pit, cable 7 fixes outside oil pipe 1 in the pit, well head tubing hanger 5 adopts the side opening design, cable 7 draws forth through the last mouthful of the big cross 3 of sleeve pipe 2, well head and the side opening of well head tubing hanger 5 in the pit, the big cross 3 of well head is connected with well head valve 4, be provided with cable seal device 6 between the side opening of well head tubing hanger 5 and the cable 7 in the pit, and cable seal device 6 carries out cable 7 in the pit and fixes and seals, draws forth the cable and need not cut here and cut off and directly wear out.

The leading-out mode of the underground cable 7 is leading-out through the upper opening of the large four-way joint 3 of the well mouth and the side hole of the oil pipe hanger 5 of the well mouth, and the integrity of the oil extraction well mouth is ensured without passing through the valve 4 of the well mouth.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an oil pipe electrical heating paraffin removal technology well head cable seal device which characterized in that: it contains oil pipe (1), sleeve pipe (2), the big cross of well head (3), well head valve (4), well head oil pipe hanger (5), cable seal device (6) and cable (7) in the pit, cable (7) are fixed outside oil pipe (1) in the pit, well head oil pipe hanger (5) adopt the side opening design, cable (7) are drawn forth through the side opening of the last mouthful of the big cross of sleeve pipe (2), the big cross of well head (3) and well head oil pipe hanger (5) in the pit, the big cross of well head (3) is connected with well head valve (4), be provided with cable seal device (6) between the side opening of well head oil pipe hanger (5) and cable (7) in the pit.