CN110410032A - Tubing plug - Google Patents
Tubing plug Download PDFInfo
- Publication number
- CN110410032A CN110410032A CN201810401911.3A CN201810401911A CN110410032A CN 110410032 A CN110410032 A CN 110410032A CN 201810401911 A CN201810401911 A CN 201810401911A CN 110410032 A CN110410032 A CN 110410032A
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- ontology
- tubing plug
- wall
- path bar
- 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.)
- Pending
Links
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 3
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
Landscapes
- 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 invention discloses a kind of tubing plugs, belong to oil-gas mining field.The tubing plug includes: connecting tube, ontology；Connecting tube is set on the body by multiple shear pins, and for connecting with tubing seal；Ontology and the inner wall of connecting tube offset, to block the channel of connecting tube；Wherein, the material of the ontology is solvable water aluminium alloy.The present invention is filled connecting pipe box on the body by shear pin, and ontology and the inner wall of connecting tube offset, and can not only effectively block the lower port in oil pipe, and to Operating Pressure after, ontology can be fallen into pit shaft, to open the channel of oil pipe, be conducive to the development of subsequent job；In addition, ontology can be dissolved in pit shaft, avoid trouble of lost tool in hole by setting solvable water aluminium alloy for the material of ontology, without carrying out fishing, it can guarantee that oil well normally produces.
Description
Technical field
The present invention relates to oil-gas mining field, in particular to a kind of tubing plug.
Background technique
Operating Pressure refer to keep pit shaft in certain pressure, and no killing well, do not bleed off pressure in the case where carried out lower tubular column
A kind of underground work technology.Currently, in order to keep stratum energy, mitigating environmental pollution, usually when carrying out operation to oil field
Take Operating Pressure mode.Wherein, Operating Pressure usually requires to block oil pipe.Therefore it provides a kind of tubing plug
It is very necessary.
The prior art provides a kind of silk plug, using the blanking plug as oil pipe.The silk plug is arranged threadably
In the lower port of oil pipe, and then realize the closure to oil pipe.
The inventor finds that the existing technology has at least the following problems:
After completing to Operating Pressure, the silk plug that the prior art provides can not be opened from the lower port of oil pipe, make oil pipe
Channel enclosed not can be carried out subsequent job, for example, the operations such as water filling, operation.
Summary of the invention
The embodiment of the invention provides a kind of tubing plugs, can solve the above problem.The technical solution is as follows:
A kind of tubing plug, the tubing plug include: connecting tube, ontology；
The connecting tube is set on the body by multiple shear pins, and for connecting with oil pipe；
The ontology and the inner wall of the connecting tube offset, to block the channel of the connecting tube；
Wherein, the material of the ontology is solvable water aluminium alloy.
In a kind of possible design, the ontology includes: from top to bottom sequentially connected path bar, large-diameter rod；
The connecting tube is sleeved on the path bar by multiple shear pins, and the roof with the large-diameter rod
It offsets.
In a kind of possible design, the path bar and the large-diameter rod integrated molding.
In a kind of possible design, the outer wall of the large-diameter rod lower end is in the arc structure being bent upwards.
In a kind of possible design, multiple shear pins are circumferentially disposed on the path bar；
Each shear pin also offsets with the roof of the connecting tube simultaneously.
In a kind of possible design, the shear pin is threadedly coupled with the path bar.
In a kind of possible design, multiple first sealing rings are provided between the path bar and the connecting tube.
In a kind of possible design, for accommodating first sealing ring is provided on the outer wall of the path bar
One holding tank.
In a kind of possible design, on the outer wall of the connecting tube it is axially disposed have it is multiple for accommodate second sealing
Second holding tank of circle.
In a kind of possible design, it is provided on the outer wall of the connecting tube compatible with the internal screw thread of the oil pipe
External screw thread.
In a kind of possible design, the external screw thread is located at the top of second holding tank.
Technical solution provided in an embodiment of the present invention has the benefit that
Tubing plug provided in an embodiment of the present invention by shear pin by connecting pipe box fill on the body, and ontology with
The inner wall of connecting tube offsets, and can not only effectively block the lower port in oil pipe, and to Operating Pressure after, ontology can be fallen
Enter to pit shaft, to open the channel of oil pipe, is conducive to the development of subsequent job；In addition, by setting the material of ontology to
Ontology, can be dissolved in pit shaft, avoid trouble of lost tool in hole by solvable water aluminium alloy, without carrying out fishing, can guarantee oil well
Normal production.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of tubing plug provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of ontology provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of connecting tube provided in an embodiment of the present invention.
Wherein, each label declaration is as follows in attached drawing:
1- connecting tube；
The second holding tank of 101-；
2- ontology；
2a- path bar；
2b- large-diameter rod；
The first sealing ring of 201-；
202- threaded hole；
3- shear pin.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of tubing plugs, and as shown in Fig. 1, which includes: connecting tube
1, ontology 2；Connecting tube 1 is sleeved on ontology 2 by multiple shear pins 3, and for being connected to oil pipe；Ontology 2 and connecting tube 1
Inner wall offset, to block the channel of connecting tube 1；Ontology 2 and the inner wall of connecting tube 1 offset, to block the channel of connecting tube 1；
Wherein, the material of ontology 2 is solvable water aluminium alloy.
It should be noted that solvable water aluminium alloy refers to the aluminium alloy that can be dissolved in water, the density of such aluminium alloy
For 1.7g/cm3~2g/cm3, compressive resistance is 72MPa~78MPa, and degradable temperature is 20 DEG C~160 DEG C, degradation time 2
It~11 days.Such aluminium alloy be it is known in the art, can be obtained by buying pattern, for example, being risen by BeiJing ZhongKe's gold
Science and Technology Ltd.'s purchase obtains.
Description is based on regard to the working principle of tubing plug provided in an embodiment of the present invention below:
When carrying out Operating Pressure, first connecting tube 1 is connect with the lower port of oil pipe, and then ontology 2 is made to pass through the company of closure
The channel of adapter tube 1, and block the lower port of oil pipe.
After to the end of Operating Pressure, when carrying out subsequent job (such as the operations such as water filling, operation), first add into oil pipe
Pressure, until cutting shear pin 3.At this point, ontology 2 is just fallen under gravity into pit shaft since connecting tube 1 is connect with oil pipe
It is interior, and then the channel of connecting tube 1 is opened, this also opens the channel of oil pipe.Later, subsequent job can be carried out.
Since the material of ontology 2 is that solvable water aluminium alloy will be with the oil in pit shaft after ontology 2 is fallen into pit shaft
Aqueous mixtures contact and, dissolve, and then not will cause trouble of lost tool in hole, guarantee oil well normally produce.
Connecting tube 1 is sleeved on ontology 2 by tubing plug provided in an embodiment of the present invention by shear pin 3, and this
Body 2 and the inner wall of connecting tube 1 offset, and can not only effectively block the lower port in oil pipe, and to Operating Pressure after, ontology
2 can fall into pit shaft, to open the channel of oil pipe, be conducive to the development of subsequent job；In addition, by by the material of ontology 2
Matter is set as solvable water aluminium alloy, and ontology 2 can be dissolved in pit shaft, avoid trouble of lost tool in hole, without carrying out fishing,
Guarantee that oil well normally produces.
Ontology 2 for blocking the channel of connecting tube 1 can be set to various structures, for example, as shown in Fig. 2, this
In inventive embodiments, ontology 2 includes: from top to bottom sequentially connected path bar 2a, large-diameter rod 2b；Connecting tube 1 is cut by multiple
It cuts pin 3 to be sleeved on path bar 2a, and offsets with the roof of large-diameter rod 2b.
By being as above arranged, it can both increase the effect that ontology 2 blocks 1 channel of connecting tube, the weight of ontology 2 can also be increased,
Be conducive to ontology 2 to fall off out of connecting tube 1.
Wherein, path bar 2a and large-diameter rod 2b integrated molding, it is ensured that the intensity of ontology 2, to extend tubing plug
Service life.
For the ease of oil pipe uplink and downlink, as shown in Fig. 2, in the embodiment of the present invention, outside the lower end large-diameter rod 2b
Wall is in the arc structure being bent upwards.
By being as above arranged, the resistance of oil pipe uplink and downlink can be reduced, be convenient for, lower oil pipe.
Connecting tube 1 can be configured as a variety of by the mode that shear pin 3 is sleeved on ontology 2, for example, such as attached drawing
Shown in 1, in the embodiment of the present invention, multiple shear pins 3 are circumferentially disposed on path bar 2a；Each shear pin 3
It offsets simultaneously with the roof of connecting tube 1.
It should be noted that shear pin 3 is exposed to the length outside path bar 2a less than or equal to 1 side wall of connecting tube
Thickness, to guarantee that connecting tube 1 is connect with tubing seal.
In use, first the path bar 2a of ontology 2 is set in connecting tube 1, then by multiple shear pins 3 according to circle
Circumferential direction is inserted and fixed to the outer wall of the upper end path bar 2a, so that path bar 2a passes through shear pin 3 in a hanging manner
It is set in connecting tube 1.
As it can be seen that, convenient for being arranged path bar 2a in connecting tube 1, reducing the set-up time by being as above arranged.
Wherein, in order to avoid ontology 2 shakes in connecting tube 1, radial distribution of each shear pin 3 along ontology 2.
In addition, above-mentioned multiple shear pins 3 are evenly provided on path bar 2a according to circumferencial direction, so that each shearing
3 uniform force of pin.
It is mainly related with the pressure that can be injected in oil pipe about the installation number of shear pin 3.Wherein, it can be infused in oil pipe
The pressure entered is configured according to the requirement of the well depth and operation pressure of construction well, can in oil pipe if the well depth of construction well is bigger
The pressure of injection is bigger, then the number that shear pin 3 is installed is more.For example, if injecting the pressure of 15MPa into oil pipe
Power, the number of shear pin 3 can be set to 3；If injecting the pressure of 35MPa or 55MPa into oil pipe, of shear pin 3
Number can be set to 4 or 5.
For the ease of replacing shear pin 3, shear pin 3 is threadedly coupled with path bar 2a.Specifically, on shear pin 3
External screw thread is set, multiple threaded holes 202 compatible with the external screw thread of shear pin 3 are set on path bar 2a.
In order to avoid the fluid between oil pipe and oil jacket annulus (referring to the annular space between oil pipe and casing) occurs
Channelling is provided with multiple first sealing rings 201 between path bar 2a and connecting tube 1, to seal between path bar 2a and connecting tube 1
Gap.
About the installation site of above-mentioned first sealing ring 201, during the present invention is implemented, on the outer wall of path bar 2a between axial direction
Every being provided with the first holding tank for accommodating the first sealing ring 201.By so set, can avoid being arranged in connecting tube 1
Multiple first holding tanks, to guarantee the intensity of connecting tube 1.
It should be noted that the first sealing ring 201 and the first holding tank correspond, i.e., first holding tank accommodates one
A first sealing ring 201.And multiple first holding tanks are arranged along the axially spaced-apart of path bar 2a.
Wherein, above-mentioned first sealing ring, 201 Pasting is in corresponding first holding tank, to avoid the first sealing ring 201
Fall.
In addition, settable 4 between path bar 2a and connecting tube 1~6 the first sealing rings 201, the embodiment of the present invention is not
Concrete restriction is carried out to the setting number of the first sealing ring 201.
In order to avoid forming channel between oil pipe and pit shaft, multiple second sealing rings are provided between connecting tube 1 and oil pipe.
About the setting position of the second sealing ring, the embodiment of the present invention is reduced in order to avoid carrying out secondary operation to oil pipe
It is process time, axially disposed multiple for accommodating the second sealing ring on the outer wall of connecting tube 1 as shown in attached drawing 1 and Fig. 3
Second holding tank 101.
It should be noted that second holding tank 101 accommodates second sealing ring.
By being as above arranged, second sealing ring can be set in above-mentioned second holding tank 101, to increase connecting tube 1 and oil
Seal degree between pipe.
Wherein, 2~3 the second holding tanks 101 are set on the outer wall of connecting tube 1, and the embodiment of the present invention is not held to second
Receive slot 101 setting number carry out concrete restriction.
For the ease of replacing connecting tube 1, in the embodiment of the present invention, the interior spiral shell with oil pipe is provided on the outer wall of connecting tube 1
The compatible external screw thread of line.
Wherein, as described in attached drawing 3, external screw thread is located at the top of the second holding tank 101, convenient for connecting connecting tube 1 and oil pipe
It connects.
To sum up, the construction procedure of tubing plug provided in an embodiment of the present invention is simple, labor intensity is low, operating cost with
And preparation expense is low, it is only necessary to 2600 yuan~3000 yuan.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (11)
1. a kind of tubing plug, which is characterized in that the tubing plug includes: connecting tube (1), ontology (2)；
The connecting tube (1) is sleeved on the ontology (2) by multiple shear pins (3), and for connecting with oil pipe；
The ontology (2) and the inner wall of the connecting tube (1) offset, to block the channel of the connecting tube (1)；
Wherein, the material of the ontology (2) is solvable water aluminium alloy.
2. tubing plug according to claim 1, which is characterized in that the ontology (2) includes: from top to bottom sequentially to connect
Path bar (2a), the large-diameter rod (2b) connect；
The connecting tube (1) is sleeved on the path bar (2a) by multiple shear pins (3), and with the large-diameter rod
The roof of (2b) offsets.
3. tubing plug according to claim 2, which is characterized in that the path bar (2a) and the large-diameter rod (2b)
Integrated molding.
4. tubing plug according to claim 2, which is characterized in that the outer wall of large-diameter rod (2b) lower end is in upward
Curved arc structure.
5. tubing plug according to claim 2, which is characterized in that multiple shear pins (3) are along the circumferential direction
It is arranged on the path bar (2a)；
Each shear pin (3) also offsets with the roof of the connecting tube (1) simultaneously.
6. tubing plug according to claim 5, which is characterized in that the shear pin (3) and the path bar
(2a) is threadedly coupled.
7. tubing plug according to claim 2, which is characterized in that the path bar (2a) and the connecting tube (1)
Between be provided with multiple first sealing rings (201).
8. oil line stopper according to claim 7, which is characterized in that be arranged on the outer wall of the path bar (2a) useful
In the first holding tank for accommodating first sealing ring (201).
9. tubing plug according to claim 1, which is characterized in that set on the outer wall of the connecting tube (1) along axial direction
It is equipped with multiple for accommodating the second holding tank (101) of the second sealing ring.
10. tubing plug according to claim 1, which is characterized in that be provided on the outer wall of the connecting tube (1) with
The compatible external screw thread of the internal screw thread of the oil pipe.
11. tubing plug according to claim 10, which is characterized in that the external screw thread is located at second holding tank
(101) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401911.3A CN110410032A (en) | 2018-04-28 | 2018-04-28 | Tubing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401911.3A CN110410032A (en) | 2018-04-28 | 2018-04-28 | Tubing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110410032A true CN110410032A (en) | 2019-11-05 |
Family
ID=68357321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810401911.3A Pending CN110410032A (en) | 2018-04-28 | 2018-04-28 | Tubing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110410032A (en) |
-
2018
- 2018-04-28 CN CN201810401911.3A patent/CN110410032A/en active Pending
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