Electrodrill cable elasticity helps sealing structure
Technical field
The invention belongs to field of petroleum exploitation, help sealing structure in particular to a kind of electrodrill cable elasticity.
Background technology
Downhole electric drilling tool is at the drilling equipment of driving by bottom hole bit with submersible electric motor, can be used for straight well, determines
To well and horizontal well operation.Electrodrill is driving force by electric power, and main advantage has: compare typical well, the rotating speed of drilling tool,
Moment of torsion and other parameters are unrelated with the injection rate of drilling fluid, viscosity and physicochemical property, the most relevant with motor performance;Compared to tradition
Helicoid hydraulic motor and turbine bore, have and can carry out reacting cycle;The power supply using driven by power to be alternatively arranged as device for subsurface measuring makes
With, the working time of measuring instrument can be made significantly to lengthen.
Operationally, the electric power of electrodrill needs to pass to downhole electric machine from ground by cable, so needing general
Logical drilling rod is transformed, and the method used now is at two ends of drill erection joint pipe nipple, is provided with cable plug in pipe nipple.When
During jointed rod, cable plug completes grafting simultaneously.In drilling operation course, plug is energized always, owing to going back in drilling rod
There is full drilling fluid, if at this moment drilling fluid entrance plug will cause short circuit, cause the damage of electrodrill, it is also possible to can make
The injures and deaths of one-tenth personnel.So, the most how preventing plug water inlet is the key technology of electrodrill success or not.
In view of this, the present inventor, according to being engaged in the production design experiences of this area and association area for many years, develops one
Plant electrodrill cable elasticity and help sealing structure, to solving the problem that prior art exists.
Summary of the invention
It is an object of the invention to be to provide a kind of electrodrill cable elasticity to help sealing structure, its reliable operation, can prevent
Only water inlet, it is achieved quickly install and dismounting, overcome the defect of prior art.
To this end, the present invention proposes a kind of electrodrill cable elasticity helps sealing structure, its be provided with a female joint pipe nipple and
One male joint pipe nipple, is fixed with a female, is provided with a public plug in described male joint pipe nipple in described female joint pipe nipple, its
In:
The front end face of described female is arranged with a caulking groove, and the medial wall of described caulking groove is provided with interior conducting strip, its groove
Being provided with an elastomeric seal portions at Kou, be additionally provided with cable on the downside of in the of in described female, one end of described downside cable is with described
Interior conducting strip electrically connects;
The rear end face of described public plug is convexly equipped with a connection-peg, and the lateral surface of described connection-peg is embedded with outer conducting strip,
Separately being provided with cable on the upside of in the of inside it, one end of described upside cable electrically connects with described outer conducting strip;
When one end of the corresponding and described female in one end of described public plug is connected, the front end of described connection-peg is corresponding
Sealing is inserted in described caulking groove, and described interior conducting strip contacts with described outer conducting strip, and the rear end of described connection-peg is the most corresponding
Compress described elastomeric seal portions, and mutually closely connected with described elastomeric seal portions, the bottom land of described caulking groove and the front end of described connection-peg
Between formed closing chamber can fill insulate fat.
Electrodrill cable elasticity as above helps sealing structure, and wherein, being additionally provided with one in described public plug can be with institute
Stating and close the L-type passage that chamber is connected, one end of described L-type passage is positioned on the sidewall of described public plug, its other end then position
On the front end face of described connection-peg.
Electrodrill cable elasticity as above helps sealing structure, and wherein, the sidewall of described female joint pipe nipple is provided with
First hole, in described first hole, correspondence is embedded with one first square head screw, and described square head screw passes through the first positioner
Described female is fixed in described female joint pipe nipple.
Electrodrill cable elasticity as above helps sealing structure, and wherein, described first positioner includes one the
One bolt and one is arranged at the protuberance of described female lateral surface, and described first bolt is arranged in described protuberance and institute successively
State the screw rod of the first square head screw, and with the screw rod bolt of described first square head screw, wherein, the nut of described first bolt
And it is provided with a packing ring between described protuberance.
Electrodrill cable elasticity as above helps sealing structure, and wherein, the sidewall of described male joint pipe nipple is provided with
Second hole, is correspondingly arranged on one second square head screw in described second hole, described second square head screw is by the second location
Described public plug is fixed in described male joint pipe nipple by device.
Electrodrill cable elasticity as above helps sealing structure, and wherein, described second positioner includes one the
Two bolts, a plug briquetting and are arranged at the projection of described public plug lateral surface, and described second bolt is arranged in institute successively
State plug briquetting and described second square head screw, and be spirally connected fixing with the screw rod of described second square head screw, wherein, described
The screw rod end of two square head screws, the side of described plug briquetting are respectively formed with a gap, and described projection correspondence is embedded at two
In described gap, wherein, it is provided with a packing ring between nut and the described plug briquetting of described second bolt.
Electrodrill cable elasticity as above helps sealing structure, wherein, is provided with a cloth in described female vertically
Wire casing, the front end bottom land of described wiring groove is positioned at described female adjacent to the outer surface of described interior conducting strip, its rear end notch
Rear end face, the leading portion of described downside cable stretches in described wiring groove, and the copper core head of its front end welds with described interior conducting strip
Connecting, its back segment stretches out the rear end face of described female through described rear end notch, and described downside cable is interior with described wiring groove
It is in sealing contact between sidewall.
Electrodrill cable elasticity as above helps sealing structure, wherein, is provided with a line in described public plug vertically
Cable groove, adjacent to described outer conducting strip at the bottom of the rear end slot of described cable trough, its front end notch is positioned at the front end face of described public plug
On, the back segment of described upside cable is placed in described cable trough, and the copper core head of its rear end is welded to connect with described outer conducting strip,
Its leading portion stretches out the front end face of described public plug through described front end notch, the medial wall of described upside cable and described cable trough it
Between be in sealing contact.
Electrodrill cable elasticity as above helps sealing structure, and wherein, the rear end face of described female is provided with sealing
Being sheathed on the back-end sealing head of described downside cable, the front end face of described public plug is provided with before sealing mutually with described upside cable
End seal head.
Electrodrill cable elasticity as above helps sealing structure, and wherein, at the notch of described caulking groove, ecto-entad expands
Footpath is formed with one first ring portion and one second ring portion, and the internal diameter of described second ring portion is less than the internal diameter of described first ring portion, and
More than the internal diameter of described caulking groove, being formed with one first ring shoulder between described second ring portion and described first ring portion, it is embedding with described
One second ring shoulder it is formed with between the medial wall of groove;
Described elastomeric seal portions includes spacing collar, back-up ring and the sealing being embedded in described first ring portion the most successively
Cushion rubber, is embedded with disc spring in described second ring portion, described disc spring two ends contact with described second ring shoulder and described O-ring seal,
The leading portion of described connection-peg is the cylindrical section that the medial wall with described caulking groove matches, and its back segment is expanding is formed with a shoulder, when
Described connection-peg seals and is inserted in described caulking groove, and described shoulder energy correspondence pushes described back-up ring, O-ring seal and disc spring, makes institute
State O-ring seal to compress and mutually closely connected with described connection-peg.
The electrodrill cable elasticity that the present invention provides helps sealing structure, short with male joint by arranging female joint pipe nipple
Joint, relies on caoutchouc elasticity sealing elastic deformation under connection-peg extrudes, then holds the outside of connection-peg tightly, makes caulking groove and inserts
Realize between joint sealing, prevent the drilling fluid of outside from entering, and utilize the caulking groove of female and the grafting of public plug inside it
Cooperating of head so that interior conducting strip contacts with each other with outer conducting strip, it is achieved that upside cable is electrically connected with downside cable
Connect.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not delimit the scope of the invention.Wherein:
Fig. 1 is the composition structural representation of female joint pipe nipple in the present invention.
Fig. 2 is the composition structural representation of male joint pipe nipple in the present invention.
Fig. 3 is schematic diagram during female joint pipe nipple jointed rod in the present invention.
Fig. 4 is schematic diagram during male joint pipe nipple jointed rod in the present invention.
Fig. 5 is male joint pipe nipple and the connection diagram of female joint pipe nipple in the present invention.
Simplification reference view when Fig. 6 is that in the present invention, public plug is connected initial with female.
Fig. 7 is the simplification reference view after public plug has been connected with female in the present invention.
Fig. 8 is the section of structure of female in the present invention.
Fig. 9 is the close-up schematic view in Fig. 8 at H.
Figure 10 is the section of structure of public plug in the present invention.
Main element label declaration:
1 female joint pipe nipple 11 first hole
12 first square head screw 121 screw rods
13 first bolt 2 male joint pipe nipples
21 second hole 221 screw rods
22 second square head screw 23 second bolts
24 plug briquetting 3 females
301 protuberance 302 packing rings
31 caulking groove 311a the first ring portions
311b the second ring portion 311c the first ring is takeed on
Conducting strip in 311d the second ring shoulder 32
33 elastomeric seal portions 331 spacing collars
332 back-up ring 333 O-ring seals
Cable on the downside of 334 disc springs 34
341 copper core 35 wiring grooves
36 back-end sealing heads
4 public plug 401 projections
41 connection-peg 411 shoulders
Cable on the upside of 42 outer conducting strips 44
45 L-type passage 46 cable trough
47 forward end seal 5 close chamber
51 insulation fat P gap
Detailed description of the invention
The present invention proposes a kind of electrodrill cable elasticity and helps sealing structure, and it is provided with a female joint pipe nipple and a public access
Head pipe nipple, is fixed with a female, is provided with a public plug, wherein: institute in described male joint pipe nipple in described female joint pipe nipple
The front end face stating female is arranged with a caulking groove, the medial wall of described caulking groove is provided with interior conducting strip, is provided with at its notch
One elastomeric seal portions, is additionally provided with cable on the downside of in the of, one end of described downside cable and described interior conducting strip electricity in described female
Connect;The rear end face of described public plug is convexly equipped with a connection-peg, the lateral surface of described connection-peg is embedded with outer conducting strip, in it
Portion is separately provided with cable on the upside of in the of, and one end of described upside cable electrically connects with described outer conducting strip;When described public plug one
When the one end holding corresponding and described female is connected, the front end correspondence of described connection-peg seals and is inserted in described caulking groove, institute
State interior conducting strip to contact with described outer conducting strip, the rear end of the described connection-peg then described elastomeric seal portions of corresponding compression, and with
Described elastomeric seal portions is mutually closely connected, and the closing chamber formed between bottom land and the front end of described connection-peg of described caulking groove can be filled absolutely
Edge fat.
The electrodrill cable elasticity of the present invention helps sealing structure, and its reliable operation can prevent into water, it is achieved quickly pacify
Dress and dismounting, overcome the defect of prior art.
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, below in conjunction with accompanying drawing and preferably
Embodiment, the electrodrill cable elasticity proposing the present invention helps the sealing detailed description of the invention of structure, structure, feature and merit
Effect, after describing in detail such as.It addition, by the explanation of detailed description of the invention, when the present invention being taked by reaching predetermined purpose
Technological means and effect more goed deep into concrete understanding, but institute's accompanying drawing be only to provide with reference to and explanation use, not use
The present invention is any limitation as.
Fig. 1 is the composition structural representation of female joint pipe nipple in the present invention.Fig. 2 is the composition of male joint pipe nipple in the present invention
Structural representation.Fig. 3 is schematic diagram during female joint pipe nipple jointed rod in the present invention.Fig. 4 is male joint pipe nipple in the present invention
Schematic diagram during jointed rod.Fig. 5 is male joint pipe nipple and the connection diagram of female joint pipe nipple in the present invention.Fig. 6 is this
Simplification reference view when bright middle public plug is connected initial with female.Fig. 7 is that in the present invention, public plug is connected with female
Simplification reference view after completing.Fig. 8 is the section of structure of female in the present invention.Fig. 9 is that in Fig. 8, local at H is put
Big schematic diagram.Figure 10 is the section of structure of public plug in the present invention.
As shown in Figures 1 to 4, the electrodrill cable elasticity that the present invention proposes helps sealing structure, is provided with a female joint short
Joint 1 and a male joint pipe nipple 2, be fixed with a female 3, be provided with in described male joint pipe nipple 2 in described female joint pipe nipple 1
One public plug 4, wherein:
The front end face of described female 3 is arranged with a caulking groove 31, and the medial wall of described caulking groove 31 is provided with interior conducting strip
32, an elastomeric seal portions 33 is installed at its notch, in described female 3, is additionally provided with cable 34 on the downside of in the of, described downside cable
One end of 34 electrically connects with described interior conducting strip 32, to realize conducting function;
The rear end face of described public plug 4 is convexly equipped with a connection-peg 41, and the lateral surface of described connection-peg 41 is embedded with outer leading
Electricity sheet 42, is separately provided with cable 44 on the upside of in the of inside it, one end of described upside cable 44 electrically connects with described outer conducting strip 42;
When one end of the corresponding and described female 3 in one end of described public plug 4 is connected, the front end of described connection-peg 41
Corresponding sealing is inserted in described caulking groove 31, and described outer conducting strip 42 contacts with described interior conducting strip 32 so that described female plug
The downside cable 34 of 3 and the upside cable 44 of public plug 4, can be corresponding by described outer conducting strip 42 and described interior conducting strip 32
Contact conduct electricity, the rear end of described connection-peg 41 is then mutually closely connected with described elastomeric seal portions 33, the bottom land of described caulking groove 31
And insulation fat 51 can be filled in the closing chamber 5 formed between the front end of described connection-peg 41, to balance external and internal pressure.
It is preferred that be additionally provided with a L-type passage 45 being connected with described closing chamber 5, described L-type in described public plug 4
One end of passage 45 is positioned on the sidewall of described public plug 4, and its other end is then positioned on the front end face of described connection-peg 41.Pass through
This L-type passage is set, the internal and external pressure balance after described female 3 can be kept to be connected, moreover it is possible to side after mounting with public plug 4
Just insulation fat is poured into.
Wherein, the sidewall of described female joint pipe nipple 1 is provided with the first hole 11 that cross section is square, described first hole
In 11, correspondence is embedded with one first square head screw 12, and described first square head screw 12 passes through the first positioner by described female
3 are fixed in described female joint pipe nipple 1.
Referring to Fig. 1, Fig. 3 and Fig. 8, described first positioner includes one first bolt 13 and and is arranged at described
The protuberance 301 of female 3 lateral surface, described first bolt 13 is arranged in described protuberance 301 and described first square toes spiral shell successively
The screw rod 121 of nail 12, and with screw rod 121 bolt of described first square head screw 12, wherein, the nut of described first bolt 12
A packing ring 302 it is provided with between 122 and described protuberance 30.It is preferred that protuberance 301 described in Tu Shi is a ring type structure.
It is square by described first hole 11 is arranged, and coordinates described first square head screw 12 to use, the can be improved
One positioner and the connection reliability of described female 3, it is to avoid disturb docking because of described rocking of female 3, it is ensured that make
Use effect.Quantity as described first hole 11 can be decided according to the actual requirements, and as in the construction illustrated, connects described mother
Circumferentially spaced on head pipe nipple 1 it is laid with two described first holes 11.
Preferably, the sidewall of described male joint pipe nipple 2 is provided with the second hole 21 that cross section is square, described second party
Being correspondingly arranged on one second square head screw 22 in hole 21, described second square head screw 22 passes through the second positioner by described male plug
4 are fixed in described male joint pipe nipple 2.
Further, described second positioner includes one second bolt 23, plug briquetting 24 and and is arranged at
The projection 401 of described public plug 4 lateral surface, described second bolt 23 is arranged in described plug briquetting 24 and described second successively
Square head screw 22, and it is spirally connected fixing with the screw rod 221 of described second square head screw 22, wherein, described second square head screw 22
Screw rod 221 end, the side of described plug briquetting 24 are respectively formed with a gap P, and described projection 401 correspondence is embedded at described in two
In gap P, wherein, it is provided with a packing ring 402 between nut and the described plug briquetting 24 of described second bolt 23.Wherein, at figure
Described in projection 401 be preferably a bulge loop.
By described second hole 21 is used with described first square toes screw fit, can improve the second positioner and
The connection reliability of described public plug 4, in the construction illustrated, preferably the most circumferentially spaced on described male joint pipe nipple 2
Be laid with two described second holes 21.
It addition, in the construction illustrated, the most described first hole 11, second hole 21 are respectively set to counterbore
Form, the nut being the most both easy to arrange described first square head screw the 12, second square head screw 22 is placed in described mother completely
In joint pipe nipple 1, male joint pipe nipple 2, preferably keep female joint pipe nipple 1, male joint pipe nipple 2 outer surface smooth attractive in appearance.
Wherein, as shown in Figure 8, a wiring groove 35, the front end slot of described wiring groove 35 it are provided with in described female 3 vertically
Adjacent to the outer surface of described interior conducting strip 32, its rear end notch is positioned at the rear end face of described female 3, described downside cable at the end
The leading portion of 34 stretches in described wiring groove 35, and the copper core 341 of its front end is welded to connect with described interior conducting strip 32, its back segment warp
Described rear end notch stretches out the rear end face of described female 3, between described downside cable 34 and the medial wall of described wiring groove 35
It is in sealing contact.
Further, refer to Figure 10, in described public plug 4, be provided with a cable trough 46 vertically, described cable trough 46
Adjacent to described outer conducting strip 42 at the bottom of rear end slot, its front end notch is positioned on the front end face of described public plug 4, described upside cable
The back segment of 44 is placed in described cable trough, and the copper core 441 of its rear end is welded to connect with described outer conducting strip 42, its leading portion warp
Described front end notch stretches out the front end face of described public plug 4, between described upside cable 44 and the medial wall of described cable trough 45
It is in sealing contact.
In order to improve sealing property, the preferably rear end face at described female 3 is provided with sealing shroud and is located at described downside cable
The back-end sealing head 36 of 34, the front end face of described public plug 4 is provided with the forward end seal 47 sealed with described upside cable 44 phase.
(as shown in Figure 3, Figure 4).
It is preferred that please also refer to Fig. 8, Fig. 9, the most expanding at the notch of described caulking groove 31 it is formed with one first ring
Portion 311a and one second ring portion 311b, the internal diameter of described second ring portion 311b is less than the internal diameter of described first ring portion 311a, and
More than the internal diameter of described caulking groove 31, between described second ring portion 311b and described first ring portion 311a, it is formed with one first ring shoulder
311c, is formed with one second ring shoulder 311d between itself and the medial wall of described caulking groove 31;
Spacing collar 331 that described elastomeric seal portions 33 includes being embedded at the most successively in described first ring portion 311a,
Back-up ring 332 and O-ring seal 333, be embedded with disc spring 334, described disc spring two ends and described second in described second ring portion 311b
Ring shoulder 311d and described O-ring seal 333 contact, and described spacing collar 331 is for limiting described back-up ring 332, O-ring seal 333
Position, prevents both after outer shifting under the elastic force effect of disc spring 334, it is to avoid to come off from described first ring portion 311a, described slotting
The leading portion of joint 41 is the cylindrical section that the medial wall with described caulking groove 31 matches, and its back segment is expanding is formed with a shoulder 411, when
Described connection-peg seals and is inserted in described caulking groove 31, and described shoulder 411 correspondence can push described back-up ring 332, O-ring seal 333
And disc spring 334, make described O-ring seal 333 compress and mutually closely connected with described connection-peg.
Referring to Fig. 5 to Fig. 7, the electrodrill cable elasticity that the present invention provides helps sealing structure, in practicing, first
By lower end and the upper end jointed rod 5 respectively of public plug 4 of described female 3, when specifically connecting, it is by described male joint pipe nipple
The lower end of 2 is socketed in downwards outside the upper end of described female 1, simultaneously, and connection-peg 41 corresponding inserted of described public plug 4
In described caulking groove 31, making the corresponding and described interior conducting strip 32 of described outer conducting strip 42 contact, its shoulder 411 is then corresponding to be squeezed
Compression elasticity sealing 33 deforms, and the most described shoulder 411 pushes described back-up ring 332, O-ring seal 333 moves inward, and compact disc
Spring 334, when being gradually increased along with thrust and be more than the elastic force of disc spring 334, described disc spring 334 is compressed so that described fluid sealant
Circle 333 is resisted against described first ring shoulder 311c, produces deformation, and along with female joint pipe nipple 1, the connection of male joint pipe nipple 2, thrust is more
Coming the biggest, O-ring seal 333 deformation is increasing, finally, and connection-peg 41 outer wall of O-ring seal 333 tightly locking public plug 4,
Thus complete to seal, completely cut off drilling fluid 7, prevent drilling fluid from entering through the joint of female 3 with public plug 4, it is to avoid in work
Time the generation of short-circuit conditions occurs, thus, the present invention completes grafting, it is achieved the electrical connection of downside cable 34 and upside cable 44.
Wherein, when connecting, in described caulking groove 31, fill insulation fat 51 in advance, in described connection-peg 41 is inserted in described caulking groove 31
Time, described insulation fat 51 can correspondence be squeezed in L-type passage 45, to keep internal and external pressure balance.
When dismounting drilling rod 6, described public plug 4 along with described male joint pipe nipple 2 is away from described female 3, its shoulder 411
Outward movment, thrust tapers into, and when thrust is less than the elastic force of described disc spring 334, described O-ring seal 333 is the most described
Disc spring 334 promotes and resets, and deformation fades away, and is restored to original state.
The electrodrill cable elasticity that the present invention provides helps sealing structure, short with male joint by arranging female joint pipe nipple
Joint, relies on elastomeric seal portions elastic deformation under connection-peg extrudes, then holds the outside of connection-peg tightly, make caulking groove and connection-peg
Between realize sealing, prevent the drilling fluid of outside from entering, and utilize the connection-peg of the caulking groove of female and public plug it inside
Cooperate so that interior conducting strip contacts with each other with outer conducting strip, it is achieved that upside cable and the electrical connection of downside cable.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.Any
Those skilled in the art, the equivalent variations made on the premise of without departing from the design of the present invention and principle and amendment, all should
Belong to the scope of protection of the invention.