CN106401521B - Preset plugging device and excessively electric pump well testing responding curve of well plugging device - Google Patents
Preset plugging device and excessively electric pump well testing responding curve of well plugging device Download PDFInfo
- Publication number
- CN106401521B CN106401521B CN201610959222.5A CN201610959222A CN106401521B CN 106401521 B CN106401521 B CN 106401521B CN 201610959222 A CN201610959222 A CN 201610959222A CN 106401521 B CN106401521 B CN 106401521B
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- mounting groove
- mandrel
- transit joint
- outside
- threadably secured
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims description 108
- 238000007789 sealing Methods 0.000 claims description 55
- 230000007704 transition Effects 0.000 claims description 32
- 230000002787 reinforcement Effects 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to down-hole plugging engineering device technique field, it is a kind of preset plugging device and crosses electric pump well testing responding curve of well plugging device；It includes oil pipe, breeches joint, blanking plug outer cylinder, preset plugging device and submersible electric pump that this, which crosses electric pump well testing responding curve of well plugging device,；Oil pipe is fixedly mounted on the outlet end of breeches joint, blanking plug outer cylinder is fixedly mounted on the liquid feeding end of breeches joint lower left side, it is fixedly installed with preset plugging device in the lower end of blanking plug outer cylinder, submersible electric pump is fixedly mounted on the liquid feeding end on the right side of breeches joint lower part.Structure of the invention is reasonable and compact, it is easy to use, pass through being used cooperatively for oil pipe, breeches joint, blanking plug outer cylinder, preset plugging device and submersible electric pump, realize the purpose that test, the admissions of parameters such as down-hole pressure, temperature are carried out in the case where being not related to electric submersible pump, have the characteristics that safe and reliable, operation is facilitated, is improved work efficiency.
Description
Technical field
The present invention relates to down-hole plugging engineering device technique field, it is a kind of preset plugging device and crosses electric pump well testing responding curve of well and block
Device.
Background technique
In oilfield production, submersible electric pump plays important work in the Lifting Technique of non-self-spray high-yield well or High water cut
With.Since submersible electric pump is all that same oil pipe is pumped in tripping in oil well below liquid level together, electric pump itself has been blocked in oil pipe
Channel, thus the data admission of submerged electric oil pump well underground oil reservoir is relatively difficult.Currently, mostly using " breeches joint " electricity
Pump biasing, reserves a TCH test channel, is blocked during normal production, in TCH test channel with a blanking plug in oil well, takes out electric pump
Fluid out is output to well head through tubing string above " breeches joint ".When needing to test, first powered-down pump, lower steel wire tool is pulled out stifled
Device is filled in, with steel wire tool tripping in test equipment and test blanking plug, test is blocked with blanking plug to origin-location, steel wire tool
Under lower going-into-well, electric pump production, test are opened.After test, first powered-down pump, proposes downhole tool, then descended blanking plug again, opens
Pump production.In the process, need to switch electric pump three times, steel wire tool enters well three times.For the electric submersible pump of underground, when switch
Electric current is maximum, and the probability for burning motor is high, meanwhile, it cannot be produced after closing pump, also influence oily well yield.Steel wire tool it is every
Once enter well, there is also security risks.
Summary of the invention
The present invention provides a kind of preset plugging device and electric pump well testing responding curve of well plugging device is crossed, overcomes above-mentioned existing skill
The deficiency of art, can effectively solve that existing apparatus is cumbersome, and motor is easily burnt, while be unable to the production of Influence of production oil well after closing pump
The problem of amount.
Technical solution of the present invention first is that being realized by following measures: a kind of preset plugging device, including top connection,
Fishing head, mandrel, pawl outer cylinder, elastic claw cylinder, transit joint and pipe shoe；It is solid on the inside of the lower outside of top connection and the upper end of pipe shoe
Dingan County is fitted together, and fishing head is located in top connection, and the lower end of fishing head and the upper end of mandrel are fixedly installed togather, outside pawl
Cylinder is sleeved on the upper outside of mandrel, and pawl outer cylinder, elastic claw cylinder, transit joint and lower contact are sequentially fixedly mounted on from top to bottom
Together, lower contact is opening up goblet, and the lower end of mandrel is sleeved in transit joint, at the middle part and lower part edge of mandrel
It axially is provided with vertical-sprue, at least one upper radial flowing hole being connected with vertical-sprue is provided in the middle part of mandrel,
The lower part of mandrel is provided at least one lower radial flowing hole being connected with vertical-sprue, is arranged in the lower part of transit joint
There is the radial switch hole of at least one, lower radial direction flowing hole is located at the top of radial switch hole, in the lower inner wall of elastic claw cylinder
At least two vertical reinforcement blocks are circumferentially equipped at intervals with, are provided with phase on the elastic claw cylinder at each vertical reinforcement block two sides and top
Logical notch；It is equipped with pawl head on the outside of the corresponding elastic claw cylinder in each vertical reinforcement block upper end, it is integrally solid in the lower inside of pipe shoe
Surely there is step corresponding with pawl head, the middle part outer diameter of mandrel is greater than upper and lower part outer diameter, holds out against in the middle part of mandrel vertical
In reinforcement block, for elastic claw cylinder through pawl headstock in the lower step of pipe shoe, transit joint 7 and lower contact are set in pipe shoe
In lower step.
Here is further optimization or/and improvement of one of the above technical solutions of the invention:
The above-mentioned upper outside in mandrel is integrally fixed with upper block machine, and the lower end of pawl outer cylinder is against in block machine；Or/
Be integrally fixed with lower block machine in the lower end inside of elastic claw cylinder, the upper end of transit joint is against in lower block machine；Or/and it is corresponding perpendicular
The outside of the elastic claw cylinder of straight reinforcement block position is provided with vertical slot along the vertical direction, and vertical slot is located at below pawl head.
It is above-mentioned to be integrally fixed with fixture block on the outside of the upper end of fishing head；Or/and the upper inner diameter of top connection is greater than in lower part
Diameter；Or/and have spacing between pawl outer cylinder and pipe shoe, there is spacing between the top and pipe shoe of elastic claw cylinder.
It is above-mentioned to be provided with outer groove on the outside of the upper end of mandrel, it is set with pawl cylinder on the top of the outer groove of mandrel,
The lower end stationary distribution of pawl cylinder has pawl, is provided with pawl corresponding with pawl along the vertical direction in the inside of pawl outer cylinder
Slot, the lower part of pawl are mounted in the pawl slot of pawl outer cylinder, and pawl outer cylinder is hung on pawl by pawl slot.
The above-mentioned top in top connection is provided with internal screw thread or external screw thread；Or/and the lower part of lower contact is up big and down small
Taper.
The middle part of above-mentioned mandrel is up-small and down-big taper；Or/and the internal diameter of lower contact is equal to or more than outside mandrel lower part
Diameter.
The above-mentioned lower end outside in top connection is provided with mounting groove, and the upper end of pipe shoe, which is threadably secured, is mounted on top connection
Lower end mounting groove in, be provided with mounting groove on the bottom face of fishing head, the upper end of mandrel is threadably secured to be mounted on and beat
It fishes out in the mounting groove on head bottom face, the lower end outside of pawl outer cylinder is provided with mounting groove, the upper end of elastic claw cylinder passes through screw thread
It is fixedly mounted in the lower end outside mounting groove of pawl outer cylinder, is respectively arranged in the upper outside and lower outside of transit joint
Mounting groove, the lower end of elastic claw cylinder are threadably secured in the top mounting groove for being mounted on transit joint, and the upper end of lower contact passes through
It is screwed and is mounted in the lower part mounting groove of transit joint；Or/and sealing is installed between transit joint and lower contact
It encloses, sealing ring is installed between the transit joint and mandrel above radial switch hole, the mistake below radial switch hole
It crossing and sealing ring is installed between connector and mandrel, the lower end of elastic claw cylinder and the bottom face of transit joint top mounting groove have spacing,
Ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, is equipped in ring cavity and is slidingly sealed component.
Technical solution of the present invention second is that being realized by following measures: it is a kind of to cross electric pump using preset plugging device
Well testing responding curve of well plugging device, including oil pipe, breeches joint, blanking plug outer cylinder, preset plugging device and submersible electric pump；In breeches joint
Top be provided with outlet end, be respectively arranged with liquid feeding end on the right side of the lower left side of breeches joint and lower part, oil pipe is fixedly mounted
On the outlet end of breeches joint, blanking plug outer cylinder is fixedly mounted on the liquid feeding end of breeches joint lower left side, outside blanking plug
The lower end of cylinder is fixedly installed with preset plugging device, and submersible electric pump is fixedly mounted on the liquid feeding end on the right side of breeches joint lower part.
Here is further optimization or/and improvement of the technical scheme ii of the invention:
Above-mentioned oil pipe and breeches joint, which are threadably secured, to be installed together, and blanking plug outer cylinder and breeches joint are solid by screw thread
Dingan County is fitted together, and the top connection of preset plugging device and being threadably secured with blanking plug outer cylinder is installed together.
The upper inner diameter of above-mentioned blanking plug outer cylinder is greater than middle part and lower inner diameter.
Structure of the invention is reasonable and compact, easy to use, passes through oil pipe, breeches joint, blanking plug outer cylinder, preset plugging device
With being used cooperatively for submersible electric pump, the test that the parameters such as down-hole pressure, temperature are carried out in the case where being not related to electric submersible pump, record are realized
The purpose taken, has the characteristics that safe and reliable, facilitates operation, improves work efficiency.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure of embodiment 1.
Attached drawing 2 is the enlarged structure schematic diagram of elastic claw cylinder in embodiment 1.
Attached drawing 3 be attached drawing 2 in A-A to schematic cross-sectional view.
Attached drawing 4 is schematic diagram of main cross-sectional structure of embodiment 2.
Coding in attached drawing is respectively as follows: 1 for top connection, and 2 be fishing head, and 3 be mandrel, and 4 be pawl cylinder, and 5 be pawl outer cylinder,
6 be elastic claw cylinder, and 7 be transit joint, and 8 be lower contact, and 9 be pipe shoe, and 10 be vertical-sprue, and 11 be upper radial flowing hole, under 12 are
Radial flowing hole, 13 be radial switch hole, and 14 be vertical reinforcement block, and 15 be vertical slot, and 16 be vertical long hole, and 17 be step, 18
It is lower block machine for upper block machine, 19,20 be fixture block, and 21 be oil pipe, and 22 be breeches joint, and 23 be blanking plug outer cylinder, and 24 be latent oil electricity
Pump, 25 be pawl head.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 1
Butut mode be described, such as: front, rear, top, and bottom, left and right positional relationship be the cloth according to Figure of description 1
Figure direction determines.
Below with reference to examples and drawings, the invention will be further described:
Embodiment 1, as shown in attached drawing 1,2,3, the preset plugging device include top connection 1, fishing head 2, mandrel 3, outside pawl
Cylinder 5, elastic claw cylinder 6, transit joint 7 and pipe shoe 9；One is fixedly mounted on the inside of the lower outside of top connection 1 and the upper end of pipe shoe 9
It rising, fishing head 2 is located in top connection 1, and the lower end of fishing head 2 and the upper end of mandrel 3 are fixedly installed togather, and 5 sets of pawl outer cylinder
Mounted in the upper outside of mandrel 3, pawl outer cylinder 5, elastic claw cylinder 6, transit joint 7 and lower contact 8 are sequentially fixedly mounted from top to bottom
Together, lower contact 8 is opening up goblet, and the lower end of mandrel 3 is sleeved in transit joint 7, mandrel 3 middle part and
Lower part is axially disposed vertical-sprue 10, the middle part of mandrel 3 be provided at least one be connected with vertical-sprue 10 it is upper
Radial flowing hole 11 is provided at least one lower radial flowing hole 12 being connected with vertical-sprue 10 in the lower part of mandrel 3,
The lower part of transit joint 7 is provided with the radial switch hole 13 of at least one, and lower radial direction flowing hole 12 is located at radial switch hole 13
Top is circumferentially equipped at intervals at least two vertical reinforcement blocks 14, in each vertical reinforcement block in the lower inner wall of elastic claw cylinder 6
The notch communicated is provided on the elastic claw cylinder 6 at 14 two sides and top；Outside the corresponding elastic claw cylinder 6 in each vertical 14 upper end of reinforcement block
Side is equipped with pawl head 25, step 17 corresponding with pawl head 25 is integrally fixed in the lower inside of pipe shoe 9, outside the middle part of mandrel 3
Diameter is greater than upper and lower part outer diameter, and the middle part of mandrel 3 is held out against in vertical reinforcement block 14, and elastic claw cylinder 6 is by 25, pawl head in pipe
In the lower step 17 of shoes 9, transit joint 7 and lower contact 8 are set in the lower step 17 of pipe shoe 9.Top connection 1 is beaten
It is existing public for fishing out head 2, pawl cylinder 4, pawl outer cylinder 5, elastic claw cylinder 6, transit joint 7, lower contact 8 and pipe shoe 9；Elastic claw
Cylinder 6 is that elastic material is made, and has elasticity, and vertical reinforcement block 14 forms elastic claw, and the middle part of mandrel 3 struts elastic claw simultaneously
Seat is in the lower step 17 of pipe shoe 9；When not in use, lower radial flowing hole 12 and radial switch hole 13 are staggered, radial to switch
Hole 13 is in close state, and prevents inside and outside connection.
Above-described embodiment 1 can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 1, it is integrally fixed with upper block machine 18 in the upper outside of mandrel 3, the lower end of pawl outer cylinder 5 is against
In block machine 18；Or/and it is integrally fixed with lower block machine 19 in the lower end inside of elastic claw cylinder 6, the upper end of transit joint 7 is against lower block
On platform 19；Or/and the outside of the elastic claw cylinder 6 of corresponding vertical 14 position of reinforcement block is provided with vertical slot 15 along the vertical direction, vertically
Slot 15 is located at 25 lower section of pawl head.In this way, upper block machine 18 and lower block machine 19 play position-limiting action.
As shown in Fig. 1, fixture block 20 is integrally fixed on the outside of the upper end of fishing head 2；Or/and in the top of top connection 1
Diameter is greater than lower inner diameter；Or/and have spacing between pawl outer cylinder 5 and pipe shoe 9, between having between the top and pipe shoe 9 of elastic claw cylinder 6
Away from.In this way, the fixture block 20 on fishing head 2 is convenient in test, tool string catches fishing head 2；Pawl outer cylinder 5 and elastic claw cylinder 6
Top has spacing to be convenient for forming fluid course between pipe shoe 9 respectively, when being tested, radial switch hole 13 after 3 downlink of mandrel
When opening inside and outside connection, liquid phase passes through radial switch hole 13, lower radial flowing hole 12, vertical-sprue 10, upper radial flowing hole 11
Circulation passage is formed with vertical long hole 16.
As shown in Fig. 1, it is provided with outer groove on the outside of the upper end of mandrel 3, is set on the top of the outer groove of mandrel 3
Pawl cylinder 4 has pawl in the lower end stationary distribution of pawl cylinder 4, is provided with along the vertical direction and pawl in the inside of pawl outer cylinder 5
Corresponding pawl slot, the lower part of pawl are mounted in the pawl slot of pawl outer cylinder 5, and pawl outer cylinder 5 hangs over spine by pawl slot
On pawl.Pawl is existing public；The lower outer diameter of pawl is greater than top and the middle part outer diameter of pawl, is convenient for pawl outer cylinder 5
It is hung on pawl by pawl slot.
As shown in Fig. 1, the top of top connection 1 is provided with internal screw thread or external screw thread；Or/and the lower part of lower contact 8 is
Up big and down small taper.In this way, being convenient for the installation of top connection 1.
As shown in Fig. 1, the middle part of mandrel 3 is up-small and down-big taper；Or/and the internal diameter of lower contact 8 is equal to or more than
3 lower outer diameter of mandrel.
As shown in Fig. 1, the lower end outside of top connection 1 is provided with mounting groove, the upper end of pipe shoe 9 is threadably secured peace
In the lower end mounting groove of top connection 1, mounting groove is provided on the bottom face of fishing head 2, the upper end of mandrel 3 passes through screw thread
It is fixedly mounted in the mounting groove on 2 bottom face of fishing head, the lower end outside of pawl outer cylinder 5 is provided with mounting groove, elastic claw cylinder 6
Upper end be threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder 5, transit joint 7 upper outside and under
It is respectively arranged with mounting groove on the outside of portion, the lower end of elastic claw cylinder 6 is threadably secured the top mounting groove for being mounted on transit joint 7
Interior, the upper end of lower contact 8 is threadably secured in the lower part mounting groove for being mounted on transit joint 7；Or/and in 7 He of transit joint
Sealing ring is installed between lower contact 8, sealing is installed between the transit joint 7 and mandrel 3 above radial switch hole 13
Circle is equipped with sealing ring, the lower end of elastic claw cylinder 6 and transition between the transit joint 7 and mandrel 3 of radial 13 lower section of switch hole
The bottom face of 7 top mounting groove of connector has spacing, and elastic claw cylinder 6, transit joint 7 and pipe shoe form ring cavity between 9 lower part, in ring cavity
It is inside equipped with and is slidingly sealed component.It is installed together in this way, being threadably secured, is easily installed and dismantles；Sealing ring and sliding
Seal assembly can play better seal effect.
Embodiment 2, as shown in attached drawing 1,4, this uses the electric pump well testing responding curve of well plugging device excessively of preset plugging device, including
Oil pipe 21, breeches joint 22, blanking plug outer cylinder 23, preset plugging device and submersible electric pump 24；It is provided on the top of breeches joint 22
Outlet end, is respectively arranged with liquid feeding end on the right side of the lower left side of breeches joint 22 and lower part, and oil pipe 21 is fixedly mounted on Y type and connects
On first 22 outlet end, blanking plug outer cylinder 23 is fixedly mounted on the liquid feeding end of 22 lower left side of breeches joint, in blanking plug outer cylinder
23 lower end is fixedly installed with preset plugging device, and submersible electric pump 24 is fixedly mounted on the liquid feeding end on the right side of 22 lower part of breeches joint.
Breeches joint 22 and submersible electric pump 24 are existing public；In this way, by oil pipe 21, breeches joint 22, blanking plug outer cylinder 23,
Preset plugging device and submersible electric pump 24 can carry out test, the record of the parameters such as down-hole pressure, temperature in the case where being not related to electric submersible pump
It takes, has the characteristics that safe and reliable, facilitate operation, improve work efficiency.
Above-described embodiment 2 can be made further optimization and/or improvements according to actual needs:
As shown in attached drawing 1,4, oil pipe 21 and breeches joint 22 are threadably secured and are installed together, blanking plug outer cylinder 23 and Y
Type joint 22, which is threadably secured, to be installed together, the top connection 1 of preset plugging device and solid by screw thread with blanking plug outer cylinder 23
Dingan County is fitted together.In this way, being easily installed and dismantling.
As shown in Fig. 4, the upper inner diameter of blanking plug outer cylinder 23 is greater than middle part and lower inner diameter.In this way, convenient for blocking
Undergauge is formed at the top of device outer cylinder 23.
The above technical features constitute embodiments of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
The use process of the embodiment of the present invention: when test, steel wire blanking plug, steel were sequentially connected from top to bottom on steel wire
Cord cap and test equipment form tool string, and when arriving the undergauge end of blanking plug outer cylinder 23 under tool string, steel wire blanking plug is got lodged in
At the undergauge end of blanking plug outer cylinder 23, tool string is continued traveling downwardly, until tool string catches the fishing head 2 on preset plugging device, after
Continuous downlink pushes fishing head 2, pawl cylinder 4 and mandrel 3 along the pawl slot direction of pawl outer cylinder 5 with respect to 5 downlink of pawl outer cylinder, core
When the lower end of axis 3 comes downwards to the intracavity bottom of lower contact 8, at this time on the lower radial flowing hole 12 and transit joint 7 on mandrel 3
Radial switch hole 13 is connected, and the top of vertical reinforcement block 14 is no longer influenced by the elastic claw for squeezing and making to correspond to vertical 14 position of reinforcement block
Cylinder 6 inwardly retraction, continue traveling downwardly make fishing head 2, mandrel 3, pawl cylinder 4, pawl outer cylinder 5, elastic claw cylinder 6, transit joint 7 and under connect
First 8 together downlink, the radial switch hole 13 come downwards on transit joint 7 be exposed to outside pipe shoe 9, radial switch hole 13 is opened inside and outside
Connection starts to test when continuing traveling downwardly to test position；After test, above mentioning tool string makes fishing head 2, mandrel 3, pawl
Cylinder 4, pawl outer cylinder 5, elastic claw cylinder 6, transit joint 7 and lower contact 8 uplink and return to original position together, and radial switch hole 13 closes
It closes, fishing tool is given up, and preset plugging device blocks the TCH test channel of blanking plug outer cylinder 23, and tool string continues uplink, steel excessively
Silk blanking plug releases blocking, and entire tool string uplink goes out well head, completes test, the admission of parameter, during well testing, latent oil electricity
Pump 24 does not have to close.
Claims (36)
1. a kind of preset plugging device, it is characterised in that connect including top connection, fishing head, mandrel, pawl outer cylinder, elastic claw cylinder, transition
Head and pipe shoe；It is fixedly installed togather on the inside of the lower outside of top connection and the upper end of pipe shoe, fishing head is located in top connection, beats
The upper end of the lower end and mandrel of fishing out head is fixedly installed togather, and pawl outer sleeve is mounted in the upper outside of mandrel, pawl outer cylinder, bullet
Pawl cylinder, transit joint and lower contact are sequentially fixedly installed togather from top to bottom, and lower contact is opening up goblet, mandrel
Lower end be sleeved in transit joint, have vertical-sprue the middle part of mandrel and lower part are axially disposed, set in the middle part of mandrel
It is equipped at least one upper radial flowing hole being connected with vertical-sprue, the lower part of mandrel is provided at least one and Vertical Flow
The lower radial flowing hole that road is connected is provided at least one radial switch hole, lower radial direction flowing hole in the lower part of transit joint
Positioned at the top of radial switch hole, at least two vertical reinforcement blocks are circumferentially equipped at intervals in the lower inner wall of elastic claw cylinder,
The notch communicated is provided on the elastic claw cylinder at each vertical reinforcement block two sides and top；It is corresponding in each vertical reinforcement block upper end
It is equipped with pawl head on the outside of elastic claw cylinder, step corresponding with pawl head is integrally fixed in the lower inside of pipe shoe, outside the middle part of mandrel
Diameter is greater than upper and lower part outer diameter, holds out against in vertical reinforcement block in the middle part of mandrel, and elastic claw cylinder is by pawl headstock under pipe shoe
On portion's step, transit joint and lower contact are set in the lower step of pipe shoe.
2. preset plugging device according to claim 1, it is characterised in that the upper outside of mandrel is integrally fixed with block machine,
The lower end of pawl outer cylinder is against in block machine；Or/and lower block machine, transit joint are integrally fixed in the lower end inside of elastic claw cylinder
Upper end be against in lower block machine；Or/and the outside of the elastic claw cylinder of corresponding vertical reinforcement block position is provided with vertically along the vertical direction
Slot, vertical slot are located at below pawl head.
3. preset plugging device according to claim 1 or 2, it is characterised in that be integrally fixed with card on the outside of the upper end of fishing head
Block；Or/and the upper inner diameter of top connection is greater than lower inner diameter；Or/and have spacing between pawl outer cylinder and pipe shoe, elastic claw cylinder
There is spacing between top and pipe shoe.
4. preset plugging device according to claim 1 or 2, it is characterised in that it is provided with outer groove on the outside of the upper end of mandrel,
It is set with pawl cylinder on the top of the outer groove of mandrel, has pawl in the lower end stationary distribution of pawl cylinder, in pawl outer cylinder
Lateral edge vertical direction is provided with pawl slot corresponding with pawl, and the lower part of pawl is mounted in the pawl slot of pawl outer cylinder, spine
Pawl outer cylinder is hung on pawl by pawl slot.
5. preset plugging device according to claim 3, it is characterised in that outer groove is provided on the outside of the upper end of mandrel, in core
The top of the outer groove of axis is set with pawl cylinder, has pawl in the lower end stationary distribution of pawl cylinder, in the interior lateral edge of pawl outer cylinder
Vertical direction is provided with pawl slot corresponding with pawl, and the lower part of pawl is mounted in the pawl slot of pawl outer cylinder, outside pawl
Cylinder is hung on pawl by pawl slot.
6. preset plugging device according to claim 1 or 2, it is characterised in that the top of top connection is provided with internal screw thread or outer
Screw thread；Or/and the lower part of lower contact is up big and down small taper.
7. preset plugging device according to claim 3, it is characterised in that the top of top connection is provided with internal screw thread or outer spiral shell
Line；Or/and the lower part of lower contact is up big and down small taper.
8. preset plugging device according to claim 4, it is characterised in that the top of top connection is provided with internal screw thread or outer spiral shell
Line；Or/and the lower part of lower contact is up big and down small taper.
9. preset plugging device according to claim 5, it is characterised in that the top of top connection is provided with internal screw thread or outer spiral shell
Line；Or/and the lower part of lower contact is up big and down small taper.
10. preset plugging device according to claim 1 or 2, it is characterised in that the middle part of mandrel is up-small and down-big taper；
Or/and the internal diameter of lower contact is equal to or more than mandrel lower outer diameter.
11. preset plugging device according to claim 3, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
12. preset plugging device according to claim 4, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
13. preset plugging device according to claim 5, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
14. preset plugging device according to claim 6, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
15. preset plugging device according to claim 7, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
16. preset plugging device according to claim 8, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
17. preset plugging device according to claim 9, it is characterised in that the middle part of mandrel is up-small and down-big taper；Or/
It is equal to or more than mandrel lower outer diameter with the internal diameter of, lower contact.
18. preset plugging device according to claim 1 or 2, it is characterised in that the lower end outside of top connection is provided with installation
Slot, the upper end of pipe shoe are threadably secured in the lower end mounting groove for being mounted on top connection, are provided on the bottom face of fishing head
Mounting groove, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end of pawl outer cylinder
Outside is provided with mounting groove, and the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder,
The upper outside and lower outside of transit joint are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on
It crosses in the top mounting groove of connector, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/
With sealing ring is installed between transit joint and lower contact, between the transit joint and mandrel above radial switch hole
Sealing ring is installed, sealing ring, the lower end of elastic claw cylinder are installed between the transit joint and mandrel below radial switch hole
There is spacing with the bottom face of transit joint top mounting groove, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring
Intracavitary be equipped with is slidingly sealed component.
19. preset plugging device according to claim 3, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
20. preset plugging device according to claim 4, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
21. preset plugging device according to claim 5, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
22. preset plugging device according to claim 6, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
23. preset plugging device according to claim 7, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
24. preset plugging device according to claim 8, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
25. preset plugging device according to claim 9, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
26. preset plugging device according to claim 10, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
27. preset plugging device according to claim 11, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
28. preset plugging device according to claim 12, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
29. preset plugging device according to claim 13, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
30. preset plugging device according to claim 14, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
31. preset plugging device according to claim 15, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
32. preset plugging device according to claim 16, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
33. preset plugging device according to claim 17, it is characterised in that the lower end outside of top connection is provided with mounting groove,
The upper end of pipe shoe is threadably secured in the lower end mounting groove for being mounted on top connection, and installation is provided on the bottom face of fishing head
Slot, the upper end of mandrel are threadably secured in the mounting groove being mounted on fishing head bottom face, in the lower end outside of pawl outer cylinder
It is provided with mounting groove, the upper end of elastic claw cylinder is threadably secured in the lower end outside mounting groove for being mounted on pawl outer cylinder, in transition
The upper outside and lower outside of connector are respectively arranged with mounting groove, and the lower end of elastic claw cylinder, which is threadably secured, to be mounted on transition and connect
In the top mounting groove of head, the upper end of lower contact is threadably secured in the lower part mounting groove for being mounted on transit joint；Or/and
Sealing ring is installed between transit joint and lower contact, is installed between the transit joint and mandrel above radial switch hole
There is sealing ring, sealing ring, the lower end of elastic claw cylinder and mistake are installed between the transit joint and mandrel below radial switch hole
The bottom face for crossing connector top mounting groove has spacing, ring cavity is formed between elastic claw cylinder, transit joint and pipe shoe lower part, in ring cavity
It is equipped with and is slidingly sealed component.
34. a kind of use blocks dress to the electric pump well testing responding curve of well of crossing of any preset plugging device in 33 according to claim 1
It sets, it is characterised in that including oil pipe, breeches joint, blanking plug outer cylinder, preset plugging device and submersible electric pump；On the top of breeches joint
It is provided with outlet end, liquid feeding end is respectively arranged on the right side of the lower left side of breeches joint and lower part, oil pipe is fixedly mounted on Y type
On the outlet end of connector, blanking plug outer cylinder is fixedly mounted on the liquid feeding end of breeches joint lower left side, under blanking plug outer cylinder
End is fixedly installed with preset plugging device, and submersible electric pump is fixedly mounted on the liquid feeding end on the right side of breeches joint lower part.
35. according to claim 34 cross electric pump well testing responding curve of well plugging device, it is characterised in that oil pipe and breeches joint are logical
Cross to be screwed and be installed together, blanking plug outer cylinder and breeches joint are threadably secured and are installed together, preset plugging device it is upper
Connector and blanking plug outer cylinder are threadably secured and are installed together.
36. crossing electric pump well testing responding curve of well plugging device according to claim 34 or 35, it is characterised in that blanking plug outer cylinder
Upper inner diameter be greater than middle part and lower inner diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959222.5A CN106401521B (en) | 2016-10-27 | 2016-10-27 | Preset plugging device and excessively electric pump well testing responding curve of well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959222.5A CN106401521B (en) | 2016-10-27 | 2016-10-27 | Preset plugging device and excessively electric pump well testing responding curve of well plugging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401521A CN106401521A (en) | 2017-02-15 |
| CN106401521B true CN106401521B (en) | 2019-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610959222.5A Active CN106401521B (en) | 2016-10-27 | 2016-10-27 | Preset plugging device and excessively electric pump well testing responding curve of well plugging device |
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| Country | Link |
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| CN (1) | CN106401521B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047804B (en) * | 2020-12-29 | 2022-12-20 | 新疆华油油气工程有限公司 | Throwing and fishing type double-acting blanking plug |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4134452A (en) * | 1977-09-14 | 1979-01-16 | Gulf Research & Development Company | Well testing tool |
| GB8816736D0 (en) * | 1988-07-14 | 1988-08-17 | Phoenix Petroleum Services | Improvements in logging plugs |
| CN100560931C (en) * | 2005-09-29 | 2009-11-18 | 中国海洋石油总公司 | Oil well electric pump separate-extraction intelligent joint |
| CN102733776B (en) * | 2012-07-19 | 2014-08-13 | 马中原 | Fishable tubing plug |
| CN202832359U (en) * | 2012-09-18 | 2013-03-27 | 中国海洋石油总公司 | Lock cylinder plugging device |
| CN203594403U (en) * | 2013-12-08 | 2014-05-14 | 中国石油集团渤海钻探工程有限公司 | Mandrel hanger hydraulic stopper operating under pressure |
| CN203640673U (en) * | 2014-01-09 | 2014-06-11 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Preset type stopper and releasing and fishing tool thereof |
| CN204098872U (en) * | 2014-09-04 | 2015-01-14 | 中国海洋石油总公司 | Electric immersible pump well tubing string and electric immersible pump well |
| CN206554870U (en) * | 2016-10-27 | 2017-10-13 | 新疆华油油气工程有限公司 | Preset plugging device and excessively electric pump well testing responding curve of well plugging device |
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2016
- 2016-10-27 CN CN201610959222.5A patent/CN106401521B/en active Active
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