CN108005586B - Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe - Google Patents
Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe Download PDFInfo
- Publication number
- CN108005586B CN108005586B CN201711372951.1A CN201711372951A CN108005586B CN 108005586 B CN108005586 B CN 108005586B CN 201711372951 A CN201711372951 A CN 201711372951A CN 108005586 B CN108005586 B CN 108005586B
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- inner tube
- direct type
- cable unit
- type composite
- oil pipe
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- 239000002131 composite material Substances 0.000 title claims abstract description 54
- 210000002445 nipple Anatomy 0.000 title claims abstract description 16
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- WABPQHHGFIMREM-YPZZEJLDSA-N lead-205 Chemical compound [205Pb] WABPQHHGFIMREM-YPZZEJLDSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention provides a kind of attachment devices and tubing nipple for non-stick direct type composite continuous oil pipe, attachment device includes inner tube, outer tube and seal assembly, outer wall outwardly convex of the inner tube close to upper end is formed with peripheral flange, it is provided with multiple first perforation, the upper end of outer tube and peripheral flange limit annular groove, when the core pipe of non-stick direct type composite continuous oil pipe is set in outside inner tube, pillar presses between the inner and outer pipe sections, the upper end of multi-strand cable unit is protruded into annular groove, the lead wire cable that lower end is protruded into annular groove and is electrically connected with cable unit is worn in multiple first perforation respectively, seal assembly is connected with peripheral flange and outer tube, annular groove and seal assembly, which are formed, is accommodated in sealed chamber therein for the junction of the upper end of multi-strand cable unit and the lower end of multiple lead wire cables.The present invention is suitable for the assembly of the cable and non-stick direct type composite continuous oil pipe of the Rodless oil extraction system of huge discharge, to realize the sealing and protection to cable.
Description
Technical field
The present invention relates to Rodless oil extraction equipment technical fields more particularly to a kind of for huge discharge Rodless oil extraction system
The attachment device and tubing nipple of non-stick direct type composite continuous oil pipe.
Background technique
The description of this part, which is only provided, discloses relevant background information to the present invention, without constituting the prior art.
Compared to there is bar oil recovery technique, Rodless oil extraction technology is obtained promoting and be answered because having greater advantage in energy-saving square face
With.
However, Rodless oil extraction technology locks into the influence of oily in-tube fouling or wax deposition, average pump detection period is unable to get
Effectively extend.To solve the above problems, Rodless oil extraction technology introduces coiled tubing made of composite material, (abbreviation is compound continuous
Oil pipe).The inner surface of composite continuous oil pipe is relatively smooth, can effectively prevent fouling and wax deposition, and power cable and signal cable
It can be laid in composite continuous oil pipe, avoid the process in conventional oil pipe operation in oil pipe outer surface fixed cable, substantially mention
Rise operating efficiency.Non-stick direct type multiple tube is current a kind of common composite continuous oil pipe type, and each layer is all on cross section
Can Relative sliding, advantage is to can get smaller bending radius.
The sectional area of cable used in Rodless oil extraction technology correspondingly increases with the increase of its discharge capacity, in simple terms,
The discharge capacity for measuring Rodless oil extraction system is bigger, and cable is thicker.But in practice, the internal diameter of pit shaft is usually certain, then well
The size of the non-stick direct type multiple tube accommodated in cylinder unconfined can not increase to be adapted to the increase of cable sectional area.From
And how to realize the assembly to the cable and non-stick direct type composite continuous oil pipe of the Rodless oil extraction system for being suitable for huge discharge, with
And sealing and protection of the realization to cable, it is a technical problem to be solved urgently.
It should be noted that the above description of the technical background be intended merely to it is convenient to technical solution of the present invention carry out it is clear,
Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes of the invention
Background technology part is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Summary of the invention
Based on prior art defect above-mentioned, the present invention provides a kind of connections for non-stick direct type composite continuous oil pipe
Device and tubing nipple, the assembly of the cable of the Rodless oil extraction system suitable for huge discharge and non-stick direct type composite continuous oil pipe,
Realize the sealing and protection to cable.
To achieve the goals above, the present invention provides the following technical solutions.
A kind of attachment device for non-stick direct type composite continuous oil pipe, the non-stick direct type composite continuous oil pipe includes core
The pillar outside the core pipe is managed and be set in, multi-strand cable unit, per share institute are folded between the core pipe and the pillar
Stating cable unit includes more cables；The attachment device includes:
Inner tube, the outer tube and seal assembly being set in outside said inner tube, said inner tube can be arranged for the core pipe, described
Outer wall outwardly convex of the inner tube close to upper end is formed with peripheral flange, and multiple first perforation are provided in the peripheral flange, more
A first perforation is corresponding with cable unit described in multiply；It is spacious that the upper end of the outer tube and the peripheral flange limit one
The annular groove opened, when the core pipe of the non-stick direct type composite continuous oil pipe is set in outside said inner tube, the pillar pressing
Between said inner tube and the outer tube, the upper end of cable unit described in multiply is extended into the annular groove, Duo Gesuo
It states and is equipped with lead wire cable in the first perforation respectively, the lower end of multiple lead wire cables extends into the annular groove simultaneously
Be electrically connected respectively with cable unit described in multiply, the both ends of the seal assembly respectively with the peripheral flange and the outer tube
Side wall close to upper end is connected, so that the annular groove is formed with the seal assembly by the upper of cable unit described in multiply
The junction of end and the lower end of multiple lead wire cables is accommodated in sealed chamber therein.
Preferably, the upper end of the outer tube bends inwards to form bending part, on the bending part circumferentially arranged with multiply
Correspondingly recess, the recess are set in described the cable unit in the core pipe of the non-stick direct type composite continuous oil pipe
The cable unit is pressed together on the outer wall of said inner tube when managing outer.
It preferably, further include connector, outer wall of the connector close to lower end extends outward to form interconnecting piece, the company
Socket part is connected with the peripheral flange, is provided on the interconnecting piece and correspondingly second wears with multiple first perforation
Hole, second perforation are connected with accordingly first perforation；
The lead wire cable is plugged in first perforation and the second perforation of corresponding connection, and the lead wire cable
Upper end extends to outside second perforation, and lower end extends into the sealed chamber.
Preferably, the cutting ferrule being sealed against is provided in second perforation, the lead wire cable fixation is threaded through described
In cutting ferrule.
Preferably, the seal assembly includes:
The solid peripheral flange is pushed up in packing element, the upper end of the packing element, and lower end is set in outside the outer tube；
The multiple wedge shapes watt being set in outside the packing element, the direction of the wall thickness edge of multiple wedge shapes watt from bottom to up is gradually
Increase；
The fastening shield being set in outside multiple wedge shapes watt, wall thickness are gradually increased along direction from top to bottom；It is described
The lower end of fastening shield is set in outside the outer tube, and upper end is threadedly coupled with the peripheral flange, thus the fastening shield energy
The relatively described peripheral flange moves axially.
Preferably, fixed ring, shape between the inner wall of the fixed ring and the outer wall of said inner tube are arranged with outside said inner tube
At there is gap；
The non-stick direct type composite continuous oil pipe further includes being folded between the core pipe and the pillar and being located at multiply
The upper end of the core pipe and the pillar is stretched out in tensile layer on the outside of the cable unit, the upper end of the tensile layer；Work as institute
When stating core pipe and being set in outside said inner tube, the upper end of the tensile layer passes through the gap and is pressed together on the pillar and described outer
Between pipe, cable unit described in multiply passes through the gap and enters in the sealed chamber.
Preferably, the outer wall outwardly convex of said inner tube is formed with multiple first steps distributed along its axial direction, and described
One step has the first mount surface towards the peripheral flange.
Preferably, the inner wall of the outer tube is inwardly protruding is formed with multiple second steps distributed along its axial direction, and described
Two steps have the second mount surface towards the peripheral flange.
A kind of tubing nipple, comprising:
Non-stick direct type composite continuous oil pipe comprising: core pipe and the pillar being set in outside the core pipe, the core pipe and
Multi-strand cable unit is folded between the pillar, the per share cable unit includes more cables；
Attachment device as described in any one above-mentioned embodiment, the core pipe are set in outside said inner tube, the pillar
It is pressed together between said inner tube and the outer tube, the upper end of cable unit described in multiply extends into the annular groove, more
It is equipped with lead wire cable respectively in a first perforation, the lower end of multiple lead wire cables extends into the annular groove
In and be electrically connected respectively with cable unit described in multiply, the both ends of the seal assembly respectively with the peripheral flange and described
Side wall of the outer tube close to upper end is connected, so that the annular groove and the seal assembly are formed cable unit described in multiply
Upper end and the junctions of lower end of multiple lead wire cables be accommodated in sealed chamber therein.
Preferably, fixed ring, shape between the inner wall of the fixed ring and the outer wall of said inner tube are arranged with outside said inner tube
At there is gap；
The non-stick direct type composite continuous oil pipe further includes being folded between the core pipe and the pillar and being located at multiply
The upper end of the core pipe and the pillar is stretched out in tensile layer on the outside of the cable unit, the upper end of the tensile layer；Work as institute
When stating core pipe and being set in outside said inner tube, the upper end of the tensile layer passes through the gap and is pressed together on the pillar and described outer
Between pipe, cable unit described in multiply passes through the gap.
The attachment device of the embodiment of the present invention and the tubing nipple formed using the attachment device, by the upper of inner tube
End setting axial ledge, so that the annular groove that the upper end for the outer tube being set in outside outer tube and axial ledge limit is open type
, even if also can preferably realize cable unit and lead wire in this way, the area of section for the cable that cable unit is included is larger
Cable is attached operation in open space.
And after completing the attended operation of cable unit and lead wire cable, annular groove, Ji Keshi are sealed by seal assembly
Now to the sealing and protection at the junction of the lower end of the upper end of cable unit and lead wire cable.
Referring to following description and accompanying drawings, the particular embodiment of the present invention is disclosed in detail, specifies the principle of the present invention
It can be in a manner of adopted.It should be understood that the embodiment of the present invention is not so limited in range.It is wanted in appended right
In the range of the spirit and terms asked, the embodiment of the present invention includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in other embodiments, is combined with the feature in other embodiments, or the feature in substitution other embodiments.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings:
Figure 1A is the schematic cross-section of non-stick direct type composite continuous oil pipe；
The structural schematic diagram that Figure 1B is connected between cable unit and lead wire cable；
Structural schematic diagram when Fig. 2 is the not set connector of attachment device and seal assembly of the embodiment of the present invention；
Fig. 2A is the overlooking structure diagram of attachment device shown in Fig. 2；
Fig. 2 B is the structural schematic diagram in the face B-B of attachment device shown in Fig. 2；
Fig. 3 is the structural schematic diagram of the attachment device of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the tubing nipple of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of wedge shape watt；
Fig. 6 A to Fig. 6 F is the flow diagram for being assembled to form the tubing nipple of the embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to guarantor of the present invention
The range of shield.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
The present invention provides a kind of attachment devices 200 for non-stick direct type composite continuous oil pipe 100, and apply the company
The tubing nipple that connection device 200 is formed.
As shown in Figure 1A, non-stick direct type composite continuous oil pipe 100 may include core pipe 101 and be set in outside core pipe 101
Pillar 102, core pipe 101 and pillar 102 are by deformable flexible material such as PE (polyethylene), PA (polyamide), PVDF
Polymer composites such as (Kynoar) are made.
Multi-strand cable unit 106 is folded between core pipe 101 and pillar 102, per share cable unit 106 may include more
The specific manifestation form of cable 106a, cable 106a can be copper core.
The quantity of cable unit 106 can for it is multiple (it is 4 that Figure 1A, which schematically illustrates the quantity of cable unit 106,
But in practice, the quantity of cable unit 106 can according to circumstances carry out the adjustment of adaptability, and this is not limited by the present invention), it is more
Share of cable unit 106 circumferentially can uniformly arrange.
Likewise, 3 that the quantity of cable 106a is including but not limited to anticipated as shown in Figure 1A, it in practice can be according to operating condition
Unrestricted choice matching, this is not limited by the present invention.
In order to which the position for more cable 106a for being included to cable unit 106 is fixed, core pipe 101 and pillar 102
Between can be folded with fixing layer 103, cable unit 106 is arranged in fixing layer 103.
In addition, down-hole liquid may be corroded caused by cable 106a in order to prevent, can be coated with outside cable 106a resistance to
Oil-insulation layer 105.
Also, in order to increase the contact area of cable unit 106 Yu fixing layer 103, cable unit 106 is together with being coated
Oil resistant insulating layer 105 in it is arranged preferably in the form of the rotation of spiral winding along axial direction, so that cable unit 106 be avoided to be wrapped
The more cable 106a contained come along axial direction from being sliding out in fixing layer 103.
Further, non-stick direct type composite continuous oil pipe 100 can also include be folded in fixing layer 103 and pillar 102 it
Between tensile layer 104, tensile layer 104 can be made of the biggish flexible material of toughness, such as above-mentioned cited macromolecule
Composite material can meet the requirement.
It should be further noted that the upper end of tensile layer 104 and cable unit 106 can be from core pipe 101 and pillar
102 upper end is stretched out.Concrete operations can be that non-stick direct type composite continuous oil pipe 100 with attachment device 200 before connecting in whole
Body structure is cut or is burnt by correspondingly strip operation such as knife, the upper end of tensile layer 104 and cable 106 is stripped out.
As shown in Figures 2 and 3, the attachment device 200 for non-stick direct type composite continuous oil pipe 100 may include inner tube
201, the outer tube 202 and seal assembly 203 being set in outside inner tube 201,201 energy core tube feeding 101 of inner tube are arranged, and inner tube 201 is leaned on
The outer wall outwardly convex of nearly upper end is formed with peripheral flange 201a, and multiple first perforation 201b are provided in peripheral flange 201a,
Multiple first perforation 201b are corresponding with multi-strand cable unit 106.
The upper end of outer tube 202 and peripheral flange 201a limit an open annular groove 204, when the compound company of non-stick direct type
The core pipe 101 of continuous oil pipe 100 be set in inner tube 201 it is outer when, pillar 102 is pressed together between inner tube 201 and outer tube 202, multi cord
The upper end of cable unit 106 extends into annular groove 204, is equipped with lead wire cable 205 respectively in multiple first perforation 201b,
The lower end of multiple lead wire cables 205 extends into be electrically connected in annular groove 204 and respectively with multi-strand cable unit 106.
The structure of lead wire cable 205 can refer to the description to cable unit 106 above, and the structure of the two can be identical,
This is not repeated.
Cable unit 106 and the connection type of lead wire cable 205 are as shown in Figure 1B, the more lines that cable unit 106 includes
Any one in cable 106a winds the lower end of remaining cable 106a and lead wire cable 205, by remaining cable 106a at coiling end
Left-hand thread is held to compress, finally in outer surface around upper insulating tape.
Alternatively, principle is using mechanical cold pressing connection: using seamless aluminium (copper) casing of cold-drawn and dedicated Press Plier,
Casing is pressed on cable 106a and lead wire cable 205 using the pressure of Press Plier, makes casing and cable 106a and lead wire cable
Stress is generated between 205, reaches and combines closely, to form good conductive access.
Side wall of the both ends of seal assembly 203 respectively with peripheral flange 201a and outer tube 202 close to upper end is connected, thus
Annular groove 204 and seal assembly 203 are formed the upper end of multi-strand cable unit 106 and the lower end of multiple lead wire cables 205
Junction is accommodated in sealed chamber 206 therein.
In the present embodiment, inner tube 201 and outer tube 202 are made of metal material.In particular, the metal of outer tube 202 is made
Material has preferable plastic deformation ability (such as can be alloy material), can occur under the action of buckle machine permanent
Plastic deformation, thus non-stick direct type composite continuous oil pipe 100 core pipe 101 be set in inner tube 201 it is outer when, withheld generation
The outer tube 202 of permanent plastic deformation can compress non-stick direct type composite continuous oil pipe 100 and (specially compress the compound company of non-stick direct type
The core pipe 101 and pillar 102 of continuous oil pipe 100), realize the fixation of non-stick direct type composite continuous oil pipe 100 and this attachment device 200
Connection.
As shown in Figures 2 and 3, in order to further increase non-stick direct type composite continuous oil pipe 100 and this attachment device 200
Bonding strength, inner tube 201 and outer tube 202 can have the structure design for increasing friction.
Specifically, can be, the outer wall outwardly convex of inner tube 201 be formed with multiple first steps distributed along its axial direction
2013, first step 2013 has the first mount surface 2014 towards peripheral flange 201a.
The inner wall of outer tube 202 is inwardly protruding to be formed with multiple second steps distributed along its axial direction 2023, second step
2023 have the second mount surface 2024 towards peripheral flange 201a.
First step 2013 and second step 2023 be respectively separated setting, to make the outer wall and outer tube 202 of inner tube 201
Inner wall is uneven.Since core pipe 101 and pillar 102 are made of flexible material, permanent plastic occurs in outer tube 202
When deformation, core pipe 101 and pillar 102 can be extruded and deform, to be closely adhered to 201 outer wall of inner tube and outer respectively
On wall inner wall.
Nationality is acted on by the mounting of the first mount surface 2014 and the second mount surface 2024 in face of peripheral flange 201a, Ke Yiji
The earth increases the frictional force between core pipe 101 and 202 inner wall of 201 outer wall of inner tube, pillar 102 and outer tube, to make non-stick direct type
Composite continuous oil pipe 100 is further improved with this attachment device 200 along axial bonding strength.
It is interior in order to further improve the bonding strength of non-stick direct type composite continuous oil pipe 100 and this attachment device 200
It can be arranged with fixed ring 207 outside pipe 201, be formed with gap 208 between the inner wall of fixed ring 207 and the outer wall of inner tube 201.
When core pipe 101 be set in inner tube 201 it is outer when, the upper end of tensile layer 104 can pass through gap 208 and be pressed together on pillar
Between 102 and outer tube 202, multi-strand cable unit 106 can pass through gap 208 and enter in sealed chamber 206.
By the drag interaction of tensile layer 104, upward effect can be applied to non-stick direct type composite continuous oil pipe 100
Power, it is disconnected de- so as to avoid non-stick direct type composite continuous oil pipe 100 and this attachment device 200 that connection occurs.
The concrete operations that tensile layer 104 is pressed together between fixed ring 207 and outer tube 202 are that the upper end of tensile layer 104 passes through
The inside of fixed ring 207 is then turned over downwards and bypasses the outside of fixed ring 207, between fixed ring 207 and outer tube 202,
Operation is withheld to the application of pillar 102 again, after permanent plastic deformation occurs for pillar 102, radial contraction change occurs therewith for outer tube 202
Shape, so that tensile layer 104 is tightly pressed together between pillar 102 and outer tube 202.
On the one hand the peripheral flange 201a that outer wall outwardly convex of the inner tube 201 close to upper end is formed is used for and outer tube 202
Upper end limits annular groove 204, and the first perforation 201b of the sealed chamber 206 being provided with is used for for lead wire cable
205 wear.On the other hand, peripheral flange 201a is also used to the connection with connector 209, to form the oil that can be used for Practical Project
Pipe pipe nipple.
Specifically, outer wall of the connector 209 close to lower end can extend outward to form interconnecting piece 209a, so as to form company
Socket part 209a is similar to flange arrangement.
The interconnecting piece 209a concrete mode that is connected with peripheral flange 201a can be circumferentially uniformly to set in interconnecting piece 209a
It is equipped with multiple through-hole 209b.In conjunction with refering to shown in Fig. 2A, be provided in peripheral flange 201a with multiple through-hole 209b correspondingly
Threaded hole 201c.
Multiple threaded hole 201c and multiple first perforation 201b are staggered and non-interference, and multiple threaded hole 201c are along week
To uniform arrangement, multiple first perforation 201b circumferentially unevenly arrange.
Fastening bolt 210 is worn in through-hole 209b, fastening bolt 210 screws in threaded hole 201c, to realize inner tube
201 with the connection of connector 209.
As shown in figure 3, further, the second perforation, the second perforation and the first perforation 201b are provided on interconnecting piece 209a
It is connected, lead wire cable 205 is plugged in the first perforation 201b and the second perforation of corresponding connection, and lead wire cable 205 is upper
End extends to outside the second perforation, and lower end extends into sealed chamber 206.
Further, the cutting ferrule 211 being sealed against can be set in the second perforation, cutting ferrule 211 is in have hollow channel
Tubulose, lower end is plugged in the second perforation and is threadedly coupled, and the fixation of lead wire cable 205 is threaded through in cutting ferrule 211.
As shown in Fig. 2 and Fig. 2 B, the upper end of outer tube 202 bends inwards to form bending part 202a, along week on bending part 202a
To being equipped with and the correspondingly recess 202b of multi-strand cable unit 106, core of the recess 202b in non-stick direct type composite continuous oil pipe 100
Pipe 101 be set in inner tube 201 it is outer when cable unit 106 is pressed together on the outer wall of inner tube 201.
The opening that core tube feeding 201 passes through is offered in the middle part of bending part 202a, multiple recess 202b are implementing to withhold operation
Before, the hole that can be passed through for cable unit 106 is formed with 201 outer wall of inner tube, so that the upper end of cable unit 106 is able to enter
In annular groove 204.
After completing aforesaid operations, operation is withheld to the implementation of outer tube 202, bending part 202a is together with outer tube 202, quilt at this time
It is squeezed and deformed, radially shrinks, to cable unit 106 is tightly pressed together on the outer wall of inner tube 201.
As shown in figure 3, seal assembly 203 may include: packing element 203a, solid peripheral flange is pushed up in the upper end of packing element 203a
201a, lower end are set in outside outer tube 202；The multiple wedge shape watt 203b being set in outside packing element 203a, multiple wedge shape watt 203b can edge
Radial contraction；The lower end of the fastening shield 203c being set in outside multiple wedge shape watt 203b, fastening shield 203c are set in outer tube 202
Outside, upper end is threadedly coupled with peripheral flange 201a, is moved axially to fasten the opposite peripheral flange 201a of shield 203c energy.
As shown in figure 5, wedge shape watt 203b can be in substantially circular arc housing shape, accordingly central angle is freely distributed according to quantity.
In practice, the quantity of wedge shape watt 203b can be 3, and the central angle of each wedge shape watt 203b is 120 degree.
Multiple groove 203d have can be set in the inner wall of wedge shape watt 203b, are protrusion between two neighboring groove 203d
203e.In this way, a wedge-shaped watt 203b inner wall forms rough surface, so as to increase the rubbing action to packing element 203a
Power preferably realizes fastening effect.
Multiple wedge shape watt 203b are coated in advance outside packing element 203a, and wall thickness is gradually increased from bottom to up.Fasten shield
203c is cylindrical, and wall thickness is gradually increased along direction from top to bottom.
It fastens inner wall of the shield 203c close to upper end and is provided with internal screw thread, correspondingly, peripheral flange 201a outer wall is provided with
External screw thread, so that axial movement can be realized by rotation by fastening shield 203c.
When fastening shield 203c is screwed on peripheral flange 201a to move up, the non-uniform inner wall of shield 203c is fastened
Radially inward pretightning force gradually can be applied to multiple wedge shape watt 203b, so that radial receive occurs for multiple wedge shape watt 203b
Contracting, and then compress packing element 203a.
In conjunction with shown in Fig. 6 A to Fig. 6 F, the tubing nipple formed using the attachment device 200 of the embodiment of the present invention is introduced
Workflow.
Step 1:
As shown in Figure 6A, the cable 106a and tensile layer of certain length are stripped out from non-stick direct type composite continuous oil pipe 100
104, so that the upper end of core pipe 101 and pillar 102 is stretched out in the upper end of cable 106a and tensile layer 104.
Step 2:
As shown in Figure 6B, fixed ring 207 is inserted in cable 106a and tensile layer 104, is close to the lower anchor ring of fixed ring 207
Then tensile layer 104 is bypassed fixed ring 207, and negative drawing, tension by the upper surface of pillar 102 outward.
Step 3:
As shown in Figure 6 C, the upper end that outer tube 202 is nested into the pillar 102 of non-stick direct type composite continuous oil pipe 100 is certain
Stop behind position, the tensile layer 104 across cable 106a and just tensed.Simultaneously by cable 106a along 202 upper end bending part of outer tube
Recess 202b on 202a is pulled out, and keeps cable 106a in recess 202b.
Outer tube 202 is during being inserted in because the reason that tensile layer 104 turns up increases non-stick direct type composite continuous oil pipe 100
The diameter of upper end, to there is certain resistance.
Step 4:
As shown in Figure 6 D, it is pushed into inner tube 201 using buckle machine, the upper end of cable unit 106 is made to extend into annular groove
In 204.The axial position for adjusting outer tube 202, withholds outer tube 202 using buckle machine.
Step 5:
As illustrated in fig. 6e, connector 209 is installed, jump lead 205 is inserted into, to jump lead 205 in annular groove 204
Lower end and cable unit 106 upper end carry out patching operations.To cable unit 106 there are after certain stretching surplus, utilize
Jump lead 205 is fixed on connector 209 by cutting ferrule 211.
Step 6:
As fig 6 f illustrates, the packing element 203a for covering in advance in outer tube 202 is inserted in annular groove 204, accommodates 3 pieces of wedge shapes watt
203b screws on fastening shield 203c, compresses wedge shape watt 203b, realizes sealing.
So far, tubing nipple completes assembling.
The attachment device 200 of the embodiment of the present invention and the tubing nipple formed using the attachment device 200, by inside
Axial ledge 201a is arranged in the upper end of pipe 201, thus the upper end for the outer tube 202 being set in outside inner tube 201 and axial ledge 201a
The annular groove 204 limited is open type, even if in this way, the area of section for the cable 106a that cable unit 106 is included
It is larger, it also can preferably realize that cable unit 106 and lead wire cable 205 are attached operation in open space.
And after completing the attended operation of cable unit 106 and lead wire cable 205, it is recessed that annular is sealed by seal assembly 203
The sealing and protection at the junction of the lower end to the upper end and lead wire cable 205 of cable unit 106 can be realized in slot 204.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only and distinguish
Similar object between the two and is not present sequencing, can not be interpreted as indication or suggestion relative importance.In addition,
In description of the invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Herein cited any digital value all include between lower limit value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity an of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 21
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that all possibility for the numerical value enumerated between minimum and peak
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to cover that " about 20 to about
30 ", including at least the endpoint indicated.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be apparent for a person skilled in the art
's.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and these
The full scope of the equivalent that claim is possessed determines.Appointing for theme disclosed herein is omitted in preceding claims
Where face is not intended to abandon the body matter, also should not be considered as inventor and the theme is not thought of as to disclosed hair
A part of bright theme.
Claims (10)
1. a kind of attachment device for non-stick direct type composite continuous oil pipe, the non-stick direct type composite continuous oil pipe includes core pipe
And it is set in the pillar outside the core pipe, and multi-strand cable unit is folded between the core pipe and the pillar, it is per share described
Cable unit includes more cables；It is characterized in that, the attachment device includes:
Inner tube, the outer tube and seal assembly being set in outside said inner tube, said inner tube can be arranged for the core pipe, said inner tube
Outer wall outwardly convex close to upper end is formed with peripheral flange, and multiple first perforation, Duo Gesuo are provided in the peripheral flange
It is corresponding with cable unit described in multiply to state the first perforation；It is open that the upper end of the outer tube with the peripheral flange limits one
Annular groove, when the core pipe of the non-stick direct type composite continuous oil pipe is set in outside said inner tube, the pillar is pressed together on institute
It states between inner tube and the outer tube, the upper end of cable unit described in multiply extends into the annular groove, and multiple described
Lead wire cable is equipped in one perforation respectively, the lower end of multiple lead wire cables extends into the annular groove and difference
It is electrically connected with cable unit described in multiply, the both ends of the seal assembly are close with the peripheral flange and the outer tube respectively
The side wall of upper end is connected, thus the annular groove and the seal assembly formed the upper end of cable unit described in multiply and
The junction of the lower end of multiple lead wire cables is accommodated in sealed chamber therein.
2. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that the outer tube
Upper end bend inwards to form bending part, circumferentially arranged with correspondingly recessed with cable unit described in multiply on the bending part
Mouthful, the recess is when the core pipe of the non-stick direct type composite continuous oil pipe is set in outside said inner tube by the cable unit pressure
It closes on the outer wall of said inner tube.
3. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that further include connecting
Connector, outer wall of the connector close to lower end extend outward to form interconnecting piece, and the interconnecting piece is connected with the peripheral flange
Connect, be provided on the interconnecting piece with it is multiple it is described first perforation correspondingly second perforation, it is described second perforation with accordingly
First perforation is connected；
The lead wire cable is plugged in first perforation and the second perforation of corresponding connection, and the upper end of the lead wire cable
It extends to outside second perforation, lower end extends into the sealed chamber.
4. being used for the attachment device of non-stick direct type composite continuous oil pipe as claimed in claim 3, which is characterized in that described second
The cutting ferrule being sealed against is provided in perforation, the lead wire cable fixation is threaded through in the cutting ferrule.
5. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that the sealing
Component includes:
The solid peripheral flange is pushed up in packing element, the upper end of the packing element, and lower end is set in outside the outer tube；
The wall thickness of the multiple wedge shapes watt being set in outside the packing element, multiple wedge shapes watt gradually increases along direction from bottom to up
Greatly；
The fastening shield being set in outside multiple wedge shapes watt, wall thickness are gradually increased along direction from top to bottom；The fastening
The lower end of shield is set in outside the outer tube, and upper end is threadedly coupled with the peripheral flange, so that the fastening shield can be opposite
The peripheral flange moves axially.
6. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that said inner tube
It is arranged with fixed ring outside, is formed with gap between the inner wall of the fixed ring and the outer wall of said inner tube；
The non-stick direct type composite continuous oil pipe further includes being folded between the core pipe and the pillar and being located at described in multiply
The upper end of the core pipe and the pillar is stretched out in tensile layer on the outside of cable unit, the upper end of the tensile layer；When the core
When pipe sleeve is located at outside said inner tube, the upper end of the tensile layer pass through the gap and be pressed together on the pillar and the outer tube it
Between, cable unit described in multiply passes through the gap and enters in the sealed chamber.
7. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that said inner tube
Outer wall outwardly convex be formed with multiple first steps distributed along its axial direction, the first step has convex towards the circumferential direction
First mount surface of edge.
8. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that the outer tube
Inner wall it is inwardly protruding be formed with multiple second steps distributed along its axial direction, the second step has convex towards the circumferential direction
Second mount surface of edge.
9. a kind of tubing nipple characterized by comprising
Non-stick direct type composite continuous oil pipe comprising: core pipe and the pillar being set in outside the core pipe, the core pipe and described
Multi-strand cable unit is folded between pillar, the per share cable unit includes more cables；
Attachment device as described in claim 1 to 8 any one, the core pipe are set in outside said inner tube, the pillar pressure
It closes between said inner tube and the outer tube, the upper end of cable unit described in multiply extends into the annular groove, multiple
It is equipped with lead wire cable respectively in first perforation, the lower end of multiple lead wire cables extends into the annular groove
And be electrically connected respectively with cable unit described in multiply, the both ends of the seal assembly respectively with the peripheral flange and described outer
It manages the side wall close to upper end to be connected, so that the annular groove and the seal assembly are formed cable unit described in multiply
The junction of upper end and the lower end of multiple lead wire cables is accommodated in sealed chamber therein.
10. tubing nipple as claimed in claim 9, which is characterized in that be arranged with fixed ring, the fixed ring outside said inner tube
Inner wall and said inner tube outer wall between be formed with gap；
The non-stick direct type composite continuous oil pipe further includes being folded between the core pipe and the pillar and being located at described in multiply
The upper end of the core pipe and the pillar is stretched out in tensile layer on the outside of cable unit, the upper end of the tensile layer；When the core
When pipe sleeve is located at outside said inner tube, the upper end of the tensile layer pass through the gap and be pressed together on the pillar and the outer tube it
Between, cable unit described in multiply passes through the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372951.1A CN108005586B (en) | 2017-12-19 | 2017-12-19 | Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372951.1A CN108005586B (en) | 2017-12-19 | 2017-12-19 | Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005586A CN108005586A (en) | 2018-05-08 |
| CN108005586B true CN108005586B (en) | 2019-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711372951.1A Active CN108005586B (en) | 2017-12-19 | 2017-12-19 | Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe |
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| EP0198672A2 (en) * | 1985-04-17 | 1986-10-22 | Halliburton Company | Well tool suspension cable head weak point |
| CN2237713Y (en) * | 1995-06-20 | 1996-10-16 | 吉林省油田管理局钻采工艺研究院 | Multifunctional composite continuous oil pipe for oil well |
| US7407005B2 (en) * | 2005-06-10 | 2008-08-05 | Schlumberger Technology Corporation | Electrically controlled release device |
| CN202280430U (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Novel quick-connecting device for coiled tubing |
| CN103775750A (en) * | 2012-10-23 | 2014-05-07 | 中国石油天然气集团公司 | Coiled tubing cable-penetrating sealing device |
| CN105811324A (en) * | 2016-04-01 | 2016-07-27 | 中国石油化工股份有限公司 | Cable conveying assembly for penetrating cable into coiled tubing and cable penetrating system |
| CN106150394A (en) * | 2016-08-22 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of downhole oil pipe inner cable docking facilities |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0198672A2 (en) * | 1985-04-17 | 1986-10-22 | Halliburton Company | Well tool suspension cable head weak point |
| CN2237713Y (en) * | 1995-06-20 | 1996-10-16 | 吉林省油田管理局钻采工艺研究院 | Multifunctional composite continuous oil pipe for oil well |
| US7407005B2 (en) * | 2005-06-10 | 2008-08-05 | Schlumberger Technology Corporation | Electrically controlled release device |
| CN202280430U (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Novel quick-connecting device for coiled tubing |
| CN103775750A (en) * | 2012-10-23 | 2014-05-07 | 中国石油天然气集团公司 | Coiled tubing cable-penetrating sealing device |
| CN105811324A (en) * | 2016-04-01 | 2016-07-27 | 中国石油化工股份有限公司 | Cable conveying assembly for penetrating cable into coiled tubing and cable penetrating system |
| CN106150394A (en) * | 2016-08-22 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of downhole oil pipe inner cable docking facilities |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108005586A (en) | 2018-05-08 |
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