CN106401521A - Preset plugger and plugging device which passes through electric pump and performs shaft testing without shutting shaft - Google Patents
Preset plugger and plugging device which passes through electric pump and performs shaft testing without shutting shaft Download PDFInfo
- Publication number
- CN106401521A CN106401521A CN201610959222.5A CN201610959222A CN106401521A CN 106401521 A CN106401521 A CN 106401521A CN 201610959222 A CN201610959222 A CN 201610959222A CN 106401521 A CN106401521 A CN 106401521A
- Authority
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- China
- Prior art keywords
- mandrel
- outer tube
- ratchet
- pawl
- outside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention relates to the technical field of under-shaft plugging devices, in particular to a preset plugger and a plugging device which passes through an electric pump and performs shaft testing without shutting a shaft. The plugging device which passes through the electric pump and performs shaft testing without shutting the shaft comprises an oil pipe, a Y-shaped connector, a plugger outer barrel, the preset plugger and an electric submersible pump, wherein the oil pipe is fixedly arranged on the liquid outlet end of the Y-shaped connector; the plugger outer barrel is fixedly arranged on the liquid inlet end of the left side of the lower part of the Y-shaped connector; the lower end of the plugger outer barrel is fixedly provided with the preset plugger; and the electric submersible pump is fixedly arranged on the liquid inlet end of the right side of the lower part of the Y-shaped connector. The plugging device is reasonable and compact in structure and convenient for use; though matched use of the oil pipe, the Y-shaped connector, the plugger outer barrel, the preset plugger and the electric submersible pump, testing and recording of under-shaft pressure, temperature and other parameters are performed without turning off the electric submersible pump; the plugging device has the characteristics of safety and reliability; operation is convenient; and working efficiency is improved.
Description
Technical field
The present invention relates to down-hole plugging engineering device technique field, it is a kind of preset stopper and electric pump well testing responding curve of well closure excessively
Device.
Background technology
In oilfield production, submersible electric pump plays important work in the Lifting Technique of non-blowing high-yield well or High water cut
With.Because submersible electric pump is all that same oil pipe one removes below liquid level in oil well and pumped, electric pump has blocked in oil pipe in itself
Passage, thus the data admission of submerged electric oil pump well down-hole oil reservoir is relatively difficult.At present, mostly adopt " breeches joint " electricity
Pump biases, and reserves a TCH test channel, when oil well normally produces, is blocked with a blanking plug, so that electric pump is taken out in TCH test channel
The fluid going out exports well head through tubing string above " breeches joint ".When needing test, first close electric pump, lower steel wire instrument is pulled out stifled
Plug device, with entering test equipment and test blanking plug under steel wire instrument, test blanking plug blocks origin-location, steel wire instrument
Under lower going-into-well, open electric pump and produce, test.After test terminates, first close electric pump, propose downhole tool, more again descended blanking plug, open
Pump produces.In the process, need to switch electric pump three times, steel wire instrument enters well three times.For the electric submersible pump of down-hole, during switch
Electric current is maximum, and the probability of motor damage is high, can not produce after closing pump meanwhile, also affects oily well yield.Steel wire instrument every
Once enter well, there is also potential safety hazard.
Content of the invention
The invention provides a kind of preset stopper and excessively electric pump well testing responding curve of well plugging device, overcome above-mentioned existing skill
The deficiency of art, its energy effectively solving existing apparatus complex operation, motor easily burns, and is unable to Influence of production oil well simultaneously and produces after closing pump
The problem of amount.
One of technical scheme is realized by following measures：A kind of preset stopper, including top connection,
Fishing head, mandrel, ratchet outer tube, bullet pawl cylinder, transit joint and pipe shoe；Solid inside the upper end of the lower outside of top connection and 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 ratchet
Jacket casing is contained in the upper outside of mandrel, and ratchet outer tube, bullet pawl 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, on the middle part of mandrel and bottom edge
Axially arranged have vertical-sprue, and the middle part of mandrel is provided with the upper radial direction flowing hole that at least one is connected with vertical-sprue,
The bottom of mandrel is provided with the lower radial direction flowing hole that at least one is connected with vertical-sprue, in the setting of the bottom of transit joint
There is the radial direction switch hole of at least one, lower radial direction flowing hole is located at the top of radial direction switch hole, in the lower inner wall playing pawl cylinder
Circumferentially it is interval with least two vertical bosses, the bullet pawl cylinder at each vertical boss both sides and top is provided with phase
Logical breach；In each vertical boss upper end, corresponding bullet is provided with pawl head outside pawl cylinder, solid in the lower inside one of pipe shoe
Surely there is the step corresponding with pawl head, the middle part external diameter of mandrel is more than upper and lower external diameter, and the middle part of mandrel holds out against vertical
In boss, play pawl cylinder and pass through pawl headstock in the lower step of pipe shoe, transit joint 7 and lower contact are set in pipe shoe
In lower step.
Further optimization and/or improvements to foregoing invention technical scheme one of are presented herein below：
The above-mentioned upper outside in mandrel is integrally fixed with gear platform, and the lower end of ratchet outer tube is against on gear platform；Or/and,
The lower end inside playing pawl cylinder is integrally fixed with lower block platform, and the upper end of transit joint is against on lower block platform；Or/and, correspond to and vertically add
The outside of the bullet pawl cylinder of strong block position is vertically provided with vertical slot, and vertical slot is located at below pawl head.
Above-mentioned integrally it is fixed with fixture block outside the upper end of fishing head；Or/and, the upper inner diameter of top connection is more than in bottom
Footpath；Or/and, there is spacing between ratchet outer tube and pipe shoe, play and have spacing between the top of pawl cylinder and pipe shoe.
Above-mentioned be provided with outer groove outside the upper end of mandrel, be set with ratchet cylinder on the top of the outer groove of mandrel,
The lower end stationary distribution of ratchet cylinder has ratchet, is vertically provided with the ratchet corresponding with ratchet in the inner side of ratchet outer tube
Groove, the bottom of ratchet is arranged in the pawl slot of ratchet outer tube, and ratchet outer tube is hung on ratchet by pawl slot.
The above-mentioned top in top connection is provided with female thread or external screw thread；Or/and, the bottom 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 bottom
Footpath.
The above-mentioned lower end outside in top connection is provided with mounting groove, and the upper end of pipe shoe is threadably secured and is arranged on top connection
Lower end mounting groove in, mounting groove is provided with the bottom face of fishing head, the upper end of mandrel be threadably secured be arranged on beat
Drag in the mounting groove on a bottom face, the lower end outside of ratchet outer tube is provided with mounting groove, screw thread is passed through in the upper end playing pawl cylinder
It is fixedly mounted in the lower end outside mounting groove of ratchet outer tube, be respectively arranged with the upper outside of transit joint and lower outside
Mounting groove, the lower end playing pawl cylinder is threadably secured in the top mounting groove being arranged on transit joint, and the upper end of lower contact is passed through
It is screwed in the bottom mounting groove being arranged on transit joint；Or/and, sealing is installed between transit joint and lower contact
Circle, is provided with sealing ring between the transit joint above radial direction switch hole and mandrel, the mistake below radial direction switch hole
Cross and sealing ring be installed between joint and mandrel, the bottom face of the lower end and transit joint top mounting groove that play pawl cylinder has spacing,
Play and form ring cavity between pawl cylinder, transit joint and pipe shoe bottom, slipper seal assembly is installed in ring cavity.
The two of technical scheme are realized by following measures：A kind of electric pump excessively using preset stopper
Well testing responding curve of well plugging device, including oil pipe, breeches joint, blanking plug outer tube, preset stopper and submersible electric pump；In breeches joint
Top be provided with liquid outlet, be respectively arranged with liquid feeding end on the right side of the lower left side of breeches joint and bottom, oil pipe fixedly mounts
On the liquid outlet of breeches joint, blanking plug outer tube is fixedly mounted on the liquid feeding end of breeches joint lower left side, outside blanking plug
The lower end of cylinder is installed with preset stopper, and submersible electric pump is fixedly mounted on the liquid feeding end on the right side of breeches joint bottom.
To foregoing invention technical scheme two further optimization and/or improvements are presented herein below：
Above-mentioned oil pipe and breeches joint are threadably secured and are installed together, and blanking plug outer tube and breeches joint are threadably secured peace
It is fitted together, the top connection of preset stopper and be threadably secured and be installed together with blanking plug outer tube.
The upper inner diameter of above-mentioned blanking plug outer tube is more than middle part and lower inner diameter.
Present configuration is reasonable and compact, easy to use, by oil pipe, breeches joint, blanking plug outer tube, preset stopper
With using cooperatively of submersible electric pump, realize carrying out down-hole pressure, the isoparametric test of temperature, record in the case of being not related to electric submersible pump
The purpose taking, has the characteristics that safe and reliable, facilitates operation, improve work efficiency.
Brief description
Accompanying drawing 1 is the main view cross section structure diagram of embodiment 1.
Accompanying drawing 2 is hit by a bullet for embodiment 1 mplifying structure schematic diagram of pawl cylinder.
Accompanying drawing 3 be accompanying drawing 2 in A-A to cross section structure diagram.
Accompanying drawing 4 is the main view cross section structure diagram of embodiment 2.
Coding in accompanying drawing is respectively：1 is top connection, and 2 is fishing head, and 3 is mandrel, and 4 is ratchet cylinder, and 5 is ratchet outer tube,
6 is to play pawl cylinder, and 7 is transit joint, and 8 is lower contact, and 9 is pipe shoe, and 10 is vertical-sprue, and 11 is upper radial direction flowing hole, under 12 are
Radial direction flowing hole, 13 is radial direction switch hole, and 14 is vertical boss, and 15 is vertical slot, and 16 is vertical elongated hole, and 17 is step, 18
For upper gear platform, 19 is lower block platform, and 20 is fixture block, and 21 is oil pipe, and 22 is breeches joint, and 23 is blanking plug outer tube, and 24 is latent oil electricity
Pump, 25 is pawl head.
Specific embodiment
The present invention is not limited by following embodiments, can technology according to the present invention scheme determine specifically with practical situation
Embodiment.
In the present invention, for the ease of description, the description of the relative position relation of each part is all according to Figure of description 1
Butut mode being described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is the cloth according to Figure of description 1
Figure direction is determining.
With reference to embodiment and accompanying drawing, the invention will be further described：
Embodiment 1, as shown in accompanying drawing 1,2,3, this preset stopper include top connection 1, fishing head 2, mandrel 3, ratchet outer tube 5,
Play pawl cylinder 6, transit joint 7 and pipe shoe 9；It is fixedly installed togather inside the upper end of the lower outside of top connection 1 and pipe shoe 9, beat
Drag for 2 to be located in top connection 1, the upper end of the lower end of fishing head 2 and mandrel 3 is fixedly installed togather, and ratchet outer tube 5 is sleeved on core
The upper outside of axle 3, ratchet outer tube 5, bullet pawl cylinder 6, transit joint 7 and lower contact 8 are sequentially fixedly installed togather from top to bottom,
Lower contact 8 is opening up goblet, and the lower end of mandrel 3 is sleeved in transit joint 7, on the middle part of mandrel 3 and bottom edge
Axially arranged have vertical-sprue 10, and the middle part of mandrel 3 is provided with the upper radial direction mistake that at least one is connected with vertical-sprue 10
Discharge orifice 11, is provided with, in the bottom of mandrel 3, the lower radial direction flowing hole 12 that at least one is connected with vertical-sprue 10, connects in transition
7 bottom is provided with the radial direction switch hole 13 of at least one, and lower radial direction flowing hole 12 is located at the top of radial direction switch hole 13,
Circumferentially it is interval with least two vertical bosses 14, in each vertical boss 14 both sides in the lower inner wall playing pawl cylinder 6
It is provided with, on pawl cylinder 6, the breach 16 communicating with playing of top；In each vertical boss 14 upper end, corresponding bullet sets outside pawl cylinder 6
There is pawl head 25, be integrally fixed with the step 17 corresponding with pawl head 25 in the lower inside of pipe shoe 9, the middle part external diameter of mandrel 3 is big
In upper and lower external diameter, the middle part of mandrel 3 holds out against in vertical boss 14, plays pawl cylinder 6 and passes through 25, pawl head in pipe shoe 9
In lower step 17, transit joint 7 and lower contact 8 are set in the lower step 17 of pipe shoe 9.Top connection 1, fishing head 2,
Ratchet cylinder 4, ratchet outer tube 5, bullet pawl cylinder 6, transit joint 7, lower contact 8 and pipe shoe 9 are existing public；Play pawl cylinder 6
It is made up of elastic material, there is elasticity, vertical boss 14 forms elastic claw, and the middle part of mandrel 3 so that elastic claw is strutted and seat exists
In the lower step 17 of pipe shoe 9；When not using, lower radial direction flowing hole 12 and radial direction switch hole 13 are staggered, radial direction switch hole 13
It is closed, prevent inside and outside connection.
According to actual needs above-described embodiment 1 can be made further optimization and/or improvements：
As shown in Figure 1, keep off platform 18 on the upper outside of mandrel 3 is integrally fixed with, the lower end of ratchet outer tube 5 is against gear platform
On 18；Or/and, integrally it is fixed with lower block platform 19 in the lower end inside playing pawl cylinder 6, the upper end of transit joint 7 is against lower block platform 19
On；Or/and, the outside of the bullet pawl cylinder 6 of corresponding vertical boss 14 position is vertically provided with vertical slot 15, vertical slot 15
Below pawl head 25.So, upper gear platform 18 and lower block platform 19 play position-limiting action.
As shown in Figure 1, integrally it is fixed with fixture block 20 outside the upper end of fishing head 2；Or/and, in the top of top connection 1
Footpath is more than lower inner diameter；Or/and, there is spacing between ratchet outer tube 5 and pipe shoe 9, play between having between the top of pawl cylinder 6 and pipe shoe 9
Away from.So, the fixture block 20 on fishing head 2 is easy in test, and tool string catches fishing head 2；Ratchet outer tube 5 and bullet pawl cylinder 6
Top has spacing to be easy to form fluid course, when being tested, the descending rear radial direction switch hole 13 of mandrel 3 respectively and pipe shoe 9 between
When opening inside and outside connection, liquid phase passes through radial direction switch hole 13, lower radial direction flowing hole 12, vertical-sprue 10, upper radial direction flowing hole 11
Form circulation passage with vertical elongated hole 16.
As shown in Figure 1, it is provided with outer groove outside the upper end of mandrel 3, be set with the top of the outer groove of mandrel 3
Ratchet cylinder 4, has ratchet in the lower end stationary distribution of ratchet cylinder 4, is vertically provided with and ratchet in the inner side of ratchet outer tube 5
Corresponding pawl slot, the bottom of ratchet is arranged in the pawl slot of ratchet outer tube 5, and ratchet outer tube 5 hangs over spine by pawl slot
On pawl.Ratchet is existing public；The lower outer diameter of ratchet is more than top and the middle part external diameter of ratchet, is easy to ratchet outer tube 5
Hung on ratchet by pawl slot.
As shown in Figure 1, the top in top connection 1 is provided with female thread or external screw thread；Or/and, the bottom of lower contact 8 is
Up big and down small taper.So, it is easy to the installation of top connection 1.
As shown in Figure 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
Mandrel 3 lower outer diameter.
As shown in Figure 1, the lower end outside in top connection 1 is provided with mounting groove, and the upper end of pipe shoe 9 is threadably secured peace
It is contained in the lower end mounting groove of top connection 1, mounting groove is provided with the bottom face of fishing head 2, screw thread is passed through in the upper end of mandrel 3
It is fixedly mounted in the mounting groove on fishing head 2 bottom face, the lower end outside of ratchet outer tube 5 is provided with mounting groove, play pawl cylinder 6
Upper end be threadably secured in the lower end outside mounting groove being arranged on ratchet outer tube 5, transit joint 7 upper outside and under
It is respectively arranged with mounting groove, the lower end playing pawl cylinder 6 is threadably secured the top mounting groove being arranged on transit joint 7 outside portion
Interior, the upper end of lower contact 8 is threadably secured in the bottom mounting groove being arranged on transit joint 7；Or/and, in transit joint 7 He
Between lower contact 8, sealing ring is installed, between the transit joint 7 and mandrel 3 of radial direction switch hole 13 top, sealing is installed
Circle, is provided with sealing ring between the transit joint 7 and mandrel 3 of radial direction switch hole 13 lower section, plays lower end and the transition of pawl cylinder 6
The bottom face of joint 7 top mounting groove has spacing, plays and forms ring cavity between pawl cylinder 6, transit joint 7 and pipe shoe 9 bottom, in ring cavity
Slipper seal assembly is inside installed.So, it is threadably secured and is installed together, be easily installed and dismantle；Sealing ring and slip
Black box can play better seal effect.
Embodiment 2, as shown in accompanying drawing 1,4, this uses the electric pump well testing responding curve of well plugging device excessively of preset stopper, including
Oil pipe 21, breeches joint 22, blanking plug outer tube 23, preset stopper and submersible electric pump 24；It is provided with the top of breeches joint 22
Liquid outlet, is respectively arranged with liquid feeding end on the right side of the lower left side of breeches joint 22 and bottom, and oil pipe 21 is fixedly mounted on Y type and connects
On 22 liquid outlet, blanking plug outer tube 23 is fixedly mounted on the liquid feeding end of breeches joint 22 lower left side, in blanking plug outer tube
23 lower end is installed with preset stopper, and submersible electric pump 24 is fixedly mounted on the liquid feeding end on the right side of breeches joint 22 bottom.
Breeches joint 22 and submersible electric pump 24 are existing public；So, by oil pipe 21, breeches joint 22, blanking plug outer tube 23,
Preset stopper and submersible electric pump 24, can carry out down-hole pressure, the isoparametric test of temperature, record in the case of being not related to electric submersible pump
Take, have the characteristics that safe and reliable, facilitate operation, improve work efficiency.
According to actual needs above-described embodiment 2 can be made further optimization and/or improvements：
As shown in accompanying drawing 1,4, oil pipe 21 and breeches joint 22 are threadably secured and are installed together, and blanking plug outer tube 23 and Y type connect
22 are threadably secured and are installed together, the top connection 1 of preset stopper and and blanking plug outer tube 23 be threadably secured peace
It is fitted together.So, it is easily installed and dismantle.
As shown in Figure 4, the upper inner diameter of blanking plug outer tube 23 is more than middle part and lower inner diameter.So, it is easy in blocking
Undergauge is formed at the top of device outer tube 23.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
It is actually needed the non-essential technical characteristic of increase and decrease, to meet the demand of different situations.
The use process of the embodiment of the present invention：During test, steel wire blanking plug, steel were sequentially connected on steel wire from top to bottom
Cord cap and test equipment composition tool string, when arriving the undergauge end of blanking plug outer tube 23 under tool string, steel wire blanking plug gets lodged in
At the undergauge end of blanking plug outer tube 23, tool string continues traveling downwardly, until tool string catches the fishing head 2 on preset stopper, continues
Continuous descending promotion fishing head 2, ratchet cylinder 4 and mandrel 3, the core descending relative to ratchet outer tube 5 along the pawl slot direction of ratchet outer tube 5
When the lower end of axle 3 comes downwards to the intracavity bottom of lower contact 8, now on the lower radial direction flowing hole 12 and transit joint 7 on mandrel 3
Radial direction switch hole 13 is connected, and the top of vertical boss 14 is no longer influenced by extruding the bullet pawl making corresponding vertical boss 14 position
Cylinder 6 inwardly bounces back, continue traveling downwardly make fishing head 2, mandrel 3, ratchet cylinder 4, ratchet outer tube 5, play pawl cylinder 6, transit joint 7 and under connect
8 descending together, comes downwards to the radial direction switch hole 13 on transit joint 7 and is exposed to outside pipe shoe 9, and radial direction switch hole 13 is opened inside and outside
Connection, when continuing traveling downwardly to test position, starts to test；After test terminates, above carrying tool string makes fishing head 2, mandrel 3, ratchet
Cylinder 4, ratchet outer tube 5, play that pawl cylinder 6, transit joint 7 are up and return to original position together with lower contact 8, radial direction switch hole 13 closes
Close, fishing tool is given up, preset stopper blocks the TCH test channel of blanking plug outer tube 23, tool string continues up, steel excessively
Silk blanking plug release blocking, whole tool string up go out well head, complete test, the admission of parameter, during well testing, latent oil electricity
Pump 24 is without cut out.
Claims (10)
1. a kind of preset stopper is it is characterised in that including top connection, fishing head, mandrel, ratchet outer tube, playing pawl cylinder, transition and connect
Head and pipe shoe；It is fixedly installed togather inside the upper end of the lower outside of top connection and pipe shoe, fishing head is located in top connection, beats
The upper end of the lower end and mandrel of dragging for head is fixedly installed togather, and ratchet outer tube is sleeved on the upper outside of mandrel, ratchet outer tube, 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 bottom are axially disposed, set at the middle part of mandrel
It is equipped with the upper radial direction flowing hole that at least one is connected with vertical-sprue, the bottom of mandrel is provided with least one and Vertical Flow
The lower radial direction flowing hole that road is connected, is provided with the radial direction switch hole of at least one, lower radial direction excessively stream in the bottom of transit joint
Hole position, in the top of radial direction switch hole, is circumferentially interval with least two vertical bosses in the lower inner wall playing pawl cylinder,
It is provided with, on pawl cylinder, the breach communicating in each vertical boss both sides and playing of top；Correspond in each vertical boss upper end
Bullet pawl cylinder outside be provided with pawl head, be integrally fixed with the step corresponding with pawl head, the middle part of mandrel in the lower inside of pipe shoe
External diameter is more than upper and lower external diameter, and the middle part of mandrel holds out against in vertical boss, plays pawl cylinder and passes through pawl headstock in pipe shoe
In lower step, transit joint 7 and lower contact are set in the lower step of pipe shoe.
2. preset stopper according to claim 1 is it is characterised in that the upper outside of mandrel is integrally fixed with gear platform,
The lower end of ratchet outer tube is against on gear platform；Or/and, integrally it is fixed with lower block platform, transit joint in the lower end inside playing pawl cylinder
Upper end be against on lower block platform；Or/and, the outside of the bullet pawl cylinder of corresponding vertical boss position is vertically provided with vertically
Groove, vertical slot is located at below pawl head.
3. preset stopper according to claim 1 and 2 is it is characterised in that be integrally fixed with card outside the upper end of fishing head
Block；Or/and, the upper inner diameter of top connection is more than lower inner diameter；Or/and, there is spacing between ratchet outer tube and pipe shoe, play pawl cylinder
There is spacing between top and pipe shoe.
4. the preset stopper according to claim 1 or 2 or 3 is it is characterised in that be provided with outer shroud outside the upper end of mandrel
Groove, is set with ratchet cylinder on the top of the outer groove of mandrel, has ratchet in the lower end stationary distribution of ratchet cylinder, in ratchet outer tube
Inner side is vertically provided with the pawl slot corresponding with ratchet, and the bottom of ratchet is arranged in the pawl slot of ratchet outer tube,
Ratchet outer tube is hung on ratchet by pawl slot.
5. the preset stopper according to claim 1 or 2 or 3 or 4 is it is characterised in that the top of top connection is provided with interior spiral shell
Stricture of vagina or external screw thread；Or/and, the bottom of lower contact is up big and down small taper.
6. the preset stopper according to claim 1 or 2 or 3 or 4 or 5 it is characterised in that mandrel middle part be upper little under
Big taper；Or/and, the internal diameter of lower contact is equal to or more than mandrel lower outer diameter.
7. the preset stopper according to claim 1 or 2 or 3 or 4 or 5 or 6 is it is characterised in that the lower end outside of top connection
It is provided with mounting groove, the upper end of pipe shoe is threadably secured in the lower end mounting groove being arranged on top connection, in the bottom of fishing head
Mounting groove is provided with face, the upper end of mandrel is threadably secured in the mounting groove being arranged on fishing head bottom face, in ratchet
The lower end outside of outer tube is provided with mounting groove, and the upper end playing pawl cylinder is threadably secured the lower end outside peace being arranged on ratchet outer tube
In tankage, it is respectively arranged with mounting groove in the upper outside of transit joint and lower outside, screw thread is passed through admittedly in the lower end playing pawl cylinder
Dingan County is contained in the top mounting groove of transit joint, and the upper end of lower contact is threadably secured the bottom peace being arranged on transit joint
In tankage；Or/and, sealing ring, the transit joint above radial direction switch hole are installed between transit joint and lower contact
Sealing ring is installed and mandrel between, positioned at being provided with sealing ring, bullet between the transit joint below radial direction switch hole and mandrel
There is spacing the lower end of pawl cylinder with the bottom face of transit joint top mounting groove, plays shape between pawl cylinder, transit joint and pipe shoe bottom
Become ring cavity, slipper seal assembly is installed in ring cavity.
8. a kind of using according to claim 12 or 34 or preset stopper described in 5 or 6 or 7 cross electric pump well testing responding curve of well
Plugging device is it is characterised in that include oil pipe, breeches joint, blanking plug outer tube, preset stopper and submersible electric pump；In breeches joint
Top be provided with liquid outlet, be respectively arranged with liquid feeding end on the right side of the lower left side of breeches joint and bottom, oil pipe fixedly mounts
On the liquid outlet of breeches joint, blanking plug outer tube is fixedly mounted on the liquid feeding end of breeches joint lower left side, outside blanking plug
The lower end of cylinder is installed with preset stopper, and submersible electric pump is fixedly mounted on the liquid feeding end on the right side of breeches joint bottom.
9. electric pump well testing responding curve of well plugging device of crossing according to claim 8 is it is characterised in that oil pipe and breeches joint pass through
It is screwed and is installed together, blanking plug outer tube and breeches joint are threadably secured and are installed together, and preset stopper connects
Head and be threadably secured and be installed together with blanking plug outer tube.
10. according to claim 8 or claim 9 cross electric pump well testing responding curve of well plugging device it is characterised in that blanking plug outer tube
Upper inner diameter is more 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 true CN106401521A (en) | 2017-02-15 |
| CN106401521B CN106401521B (en) | 2019-01-04 |
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| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN106401521B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047804A (en) * | 2020-12-29 | 2021-06-29 | 新疆华油油气工程有限公司 | Throwing and fishing type double-acting blanking plug |
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| 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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| US5099919A (en) * | 1988-07-14 | 1992-03-31 | Schneider John L | Plug for well logging operations |
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| CN102733776A (en) * | 2012-07-19 | 2012-10-17 | 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047804A (en) * | 2020-12-29 | 2021-06-29 | 新疆华油油气工程有限公司 | Throwing and fishing type double-acting blanking plug |
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|---|---|
| CN106401521B (en) | 2019-01-04 |
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