CN207676702U

CN207676702U - Anti-overflow seal charge bearing detecting cable

Info

Publication number: CN207676702U
Application number: CN201721737406.3U
Authority: CN
Inventors: 高常青; 李阳; 聂源基; 刘金松; 刘成浩; 孙世峰
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2017-12-13
Filing date: 2017-12-13
Publication date: 2018-07-31
Anticipated expiration: 2027-12-13

Abstract

The utility model discloses a kind of anti-overflow seal charge bearing detecting cable, solve the problems, such as that existing charge bearing detecting cable anti-overflow effect is undesirable.It includes cable core, insulating layer, internal armored layer and external armor layer, the section of steel wire in the external armor layer is made of the side camber line of outer arcuate, interior camber line and both sides, the imaginary circles at the inside and outside arc and place are fitted, and the side camber line is one kind in S-shaped, C-shaped or ＞ shapes.This cable provides completely new sheathed structure, by the profiled outline for changing steel wire, increase the intensity of external armor layer and anti-buffer capacity, the anti-overflow ability of cable and the sealability of cable are enhanced, solves the problems, such as certain root steel wire of armor in the prior art to lead to depression of bearing force and oil spilling by mill section.

Description

Anti-overflow seal charge bearing detecting cable

Technical field

The utility model is related to field of cable technology, especially a kind of charge bearing detecting cable.

Background technology

Inside and outside sheath in traditional charge bearing detecting cable is generally protected using steel wire, and steel wire uses spiral way Winding, sectional view is with reference to figure 1, and the friction area between adjacent wires is very small, and when steel wire is by ambient pressure, both sides steel wire is deposited In the trend squeezed to centre, then the intermediate steel wire being extruded will stress protrude from the overall structure of crude oil armor easily by Section is ground in abrasion.The globality of armor is caused to be destroyed, the bearing capacity of cable declines.Simultaneously as in external armor layer, steel wire Between gap it is larger, after cable is gone into the well, underground fluid can overflow to well face between the gap of steel wire, cause large area dirty Dye.Another larger drawback of steel wire gap is exactly that armature of cable layer leakproofness is poor, can make external corrosion liquid corrosion Inside cable, cable life is influenced.

There is applicant to propose a kind of new structural external armor layer in order to solve the above problem thus, with reference to figure 2, in Fig. 2 Technology comes from CN104681166B, and the scheme in the technology is that external armor layer uses the steel wire that section is sector, that is, will be original It is adjacent between steel wire by line contact change into plane contact, increase the leakproofness between steel wire and steel wire in external armor layer, Achieve the effect that the gap between steel wire becomes smaller.

The above-mentioned external armor layer using sector crosssection steel wire, although realizing the purpose in gap between diminution steel wire.But it cuts Face is that the mating surface between the steel wire of scallop wire is still straight to hand in retroactively, that is to say, that mating surface does not form occlusion knot Structure, and the mating surface formed in plane engagement process is smaller, shorter, slightly more tiny dust is also can be from plane It breaks through and enters in gap.

In addition, in Fig. 2, plane cooperation, in use, due to not having location structure, is also easy production in winding process and later stage It raw phenomena such as deflecting, heaving, needs further to improve, to overcome the above problem.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a kind of anti-overflow seal charge bearing detecting cable, leads to The cross sectional shape for changing steel wire is crossed, the occlusion compactness between adjacent wires is increased, by the raising for being engaged compactness so that well Liquid be less susceptible to overflow and on, dust etc. is less susceptible to break through and enter from the gap between external armor layer.

Technical solution is used by the utility model solves its technical problem：

Anti-overflow seal charge bearing detecting cable, including cable core, insulating layer, internal armored layer and external armor layer, which is characterized in that institute The section for stating the steel wire in external armor layer is made of the side camber line of outer arcuate, interior camber line and both sides, the inside and outside arc and place Imaginary circles are fitted, and the side camber line is one kind in S-shaped, C-shaped or ＞ shapes.

In the middle part of the side camber line or sealing element is arranged in recess portion.

The sealing element is rubber strip or wick.

The internal armored layer is that circular steel wire and sealant layer collectively constitute by section, the seam between adjacent round wire Gap is filled by sealant layer.

The internal armored layer is identical as the section of steel wire in the external armor layer.

The utility model has the beneficial effects that：

This cable provides completely new sheathed structure, by changing the profiled outline of steel wire, increases the intensity of external armor layer With anti-buffer capacity, the anti-overflow ability of cable and the sealability of cable are enhanced, solves armor in the prior art The problem of certain root steel wire by mill section to lead to depression of bearing force and oil spilling.And its effect is done further in conjunction with specific embodiments Explanation.

Description of the drawings

Fig. 1 is prior-art illustration.

Fig. 2 is prior-art illustration.

Fig. 3 is the cross-section diagram of the utility model.

Fig. 4 is one of the differentiation of Fig. 3.

Fig. 5 is the two of the differentiation of Fig. 3.

Fig. 6 is the three of the differentiation of Fig. 3.

Fig. 7 is the four of the differentiation of Fig. 3.

Fig. 8 is the five of the differentiation of Fig. 3.

Fig. 9 is the cross-section diagram of internal armored layer novel type.

Figure 10 is one of the differentiation of Fig. 9.

Figure 11 is the two of the differentiation of Fig. 9.

Figure 12 is the three of the differentiation of Fig. 9.

Figure 13 is the four of the differentiation of Fig. 9.

Figure 14 is the five of the differentiation of Fig. 9.

In figure：001 cable core,

002 insulating layer,

003 internal armored layer.

004 external armor layer, 014 side camber line, 024 sealing element.

Specific implementation mode

The present embodiment is illustrated based on only core cable, in the case where not departing from the present utility model essence, Two core cable, three-core cable, quad, five-core cable, six conductor cable etc. can be extended to, wherein for only core cable, Refer to being formed in the periphery package insulator of cable core, it may be multiple conducting wires that wherein cable core, which can be plain conductor, Mutually screw up.

The internal armored layer, external armor layer of the utility model are protection, tensile structure made of being enclosed in the periphery of above-mentioned cable core.

Understanding for ease of the public, the present embodiment is illustrated by taking Fig. 3 and the deformation that may relate to, combination as an example, But the assemble pattern for the steel wire that the utility model is protected is not limited to the revealed pattern of the utility model embodiment attached drawing, first closes Deformation be also within the protection scope of the utility model.

For shown in Fig. 3, structure is as follows：

Cable core 001 is metal cable core, usually copper material or aluminium material.

Insulating layer 002 is enclosed in copper stranded conductor outer layer, binding layer is cased with outside insulating layer.

It is cased with internal armored layer 003 on the outside of binding layer.

It is external armor layer 004 on the outside of internal armored layer.

About external armor layer 004, by several steel wires, king bolt is wound external armor layer on the outside, the section of each steel wire It is made of the side camber line of outer arcuate, interior camber line and both sides, wherein inside and outside arc is a part for circular arc, the void with place Quasi- circle fitting.The pattern of side camber line 014 includes at least the pattern in Fig. 3, Fig. 5 and Fig. 7, respectively S-shaped, C-shaped and ＞ shapes.It is adjacent Between steel wire between form occlusion structure, in conjunction with finer and close, effectively prevent steel wire local deformation therein, and combine more Bearing capacity and anti-overflow ability can be substantially improved in densification.

Compactness in the external armor layer 004 between steel wire so that cable surface smooth abrasion-proof forms pure circle structure.It can The appearance for the problem of preventing from encountering resistance, card in use.Liquid corrosion object can be effectively reduced simultaneously to enter inside cable, prevented It is corroded inside cable.Ensure cable tensile strength, improves the service life of cable, downhole oil hydrorrhea can be effectively prevent to flow to ground Face, opposite environment is at preferable protection.

Further in improvement project, can in the middle part of the camber line of side or recess portion setting rubber strip, wick sealing element 024, with reference to 4/ Fig. 6 of figure/Fig. 7 so that the sealing performance between steel wire is improved.

With reference to figure 3 to Fig. 8, it is that circular steel wire and sealant layer collectively constitute more circles that internal armored layer 003, which is by section, Steel wire is located on outside insulating layer, and the gap between adjacent round wire is filled by sealant layer, sealant layer and circle It is circular closure mechanism that steel wire, which collectively forms section,.

The internal armored layer 003 can also refer to the set-up mode of external armor layer, that is, internal armored layer is by several steel wires king bolt on the outside It is wound, the section of each steel wire is to be made of the side camber line of outer arcuate, interior camber line and both sides, wherein inside and outside Arc is a part for circular arc, is fitted with the imaginary circles at place.The pattern of side camber line includes at least the pattern in Fig. 9 to 14, point It Wei not S-shaped, C-shaped and ＞ shapes.Occlusion structure is formed between steel wire between adjacent, in conjunction with finer and close, is effectively prevent therein Steel wire local deformation, and combination is finer and close, and by the mutual cooperation with external armor layer, bearing capacity and anti-overflow energy is substantially improved Power.

Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, relevant technical staff in the field is to this The various modifications of utility model and improvement, should all be in the protection domain determined by the utility model claims book.

Claims

1. anti-overflow seal charge bearing detecting cable, including cable core, insulating layer, internal armored layer and external armor layer, which is characterized in that described The section of steel wire in external armor layer is made of the side camber line of outer arcuate, interior camber line and both sides, the void of the inside and outside arc and place Quasi- circle fitting.

2. anti-overflow seal charge bearing detecting cable according to claim 1, which is characterized in that the side camber line is " S " One kind in shape, " C " shape or " ＞ " shape.

3. anti-overflow seal charge bearing detecting cable according to claim 2, which is characterized in that in the middle part of the side camber line or Sealing element is arranged in person's recess portion.

4. anti-overflow seal charge bearing detecting cable according to claim 3, which is characterized in that the sealing element is rubber Adhesive tape or wick.

5. anti-overflow seal charge bearing detecting cable according to claim 1, which is characterized in that the internal armored layer is by section It is collectively constituted for circular steel wire and sealant layer, the gap between adjacent round wire is filled by sealant layer.

6. anti-overflow seal charge bearing detecting cable according to claim 1, which is characterized in that the internal armored layer with it is described The section of steel wire is identical in external armor layer.