CN109973048A - A kind of completely new solvable bridge plug - Google Patents
A kind of completely new solvable bridge plug Download PDFInfo
- Publication number
- CN109973048A CN109973048A CN201910121538.0A CN201910121538A CN109973048A CN 109973048 A CN109973048 A CN 109973048A CN 201910121538 A CN201910121538 A CN 201910121538A CN 109973048 A CN109973048 A CN 109973048A
- Authority
- CN
- China
- Prior art keywords
- slips
- bridge plug
- container
- completely new
- card
- 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
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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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/134—Bridging plugs
Abstract
The invention discloses a kind of completely new solvable bridge plugs, including pressure break ball (801), container (101), sealing bucket (103), slips (102), retaining mechanism (104)；The container (101) accommodates the pressure break ball (801) of investment, and sealing bucket (103) is located at the centre of container (101) and slips (102), and the other end of the slips (102) connects retaining mechanism (104)；The slips (102) is integrated with retaining mechanism (104).The advantages that present invention has structure simply light and handy, and length is short and small, and speed of going into the well is fast, layering dissolution, saves production cost and transportation cost.It is mainly used for the volume increase of oil/gas well horizontal fragmentation fracturing plugging.
Description
Technical field
The present invention relates to medical technology, oil/gas well technical field of operation more particularly to a kind of completely new solvable bridge plugs.
Background technique
In recent years, international oil price remains inactive over long periods of time, and conventional compound fast brill bridge plug is at high cost, long horizontal fragmentation continuous tubing drill plug
Depth is limited, and coiled tubing construction en-gineering risk increases, and the later period bores the processing such as plug, and layer secondary pollution is serious over the ground, influences yield.
Fast brill is long bridge plug well construction period, influences operation efficiency.After big orifice bridge plug operation restore pit shaft difficulty it is big, influence repeat be transformed or
Person goes into operation again.
It more specifically says, the both ends of glue bucket are set on central tube equipped with symmetrical slips and track, and it is more that bridge plug seals bucket
It for glue bucket, and is 2 or more, there are critical defect, such as CN108678707A: three glue bucket independent parallels of Patent No. connect
Together, stress point difference in the case where, three swollen degree of glue bucket Peng are not quite similar, be not only not achieved sealing effect or
Person contacts solution in advance, starts to dissolve ahead of time, is not achieved expected effect, and volume increases, and heavy, speed of going into the well is slow, increase at
This disadvantages of.
Summary of the invention
In order to solve the shortcoming of existing technology, spy of the present invention discloses a kind of 1, completely new solvable bridge plug, and feature exists,
Including pressure break ball 801, container 101, sealing bucket 103, slips 102, retaining mechanism 104；The container 101 accommodates investment
Pressure break ball 801, the sealing bucket 103 are located at the centre of container 101 and slips 102, and the other end of the slips 102 connects lock
Tight mechanism 104；The slips 102 is integrated with retaining mechanism 104；It further include that multiple cards 201 form on the slips 102；
The card 201 can be divided into stand alone type and integral type；Each card 201 is at least containing a ceramic beans 202；When the card
When piece 201 is freestanding, by upper and lower ends retainer ring 203 is arranged come 201 synchronizing moving of fixed card in the slips 102,
It avoids to separate with portion by extrusion process card 201；When the card 201 is integral type, the slips 102 is not needed
Any external object is fixed, integral type slips equal part fluting 301 on the body, and entire body occur in the upper end of slot 301 or lower end
Crack 302, for clearer determining protection scope, slot 301 occurs in pairs, one slot upper end of every centering entire body crack 302, separately
One is just lower end entire body crack 302, that is to say, that upper and lower ends entire body crack 302 is in alternative expression between two adjoint slots 301
Occur；One end outer diameter that the container 101 is contacted with sealing bucket 103 is less than and the other end.Reduction and the friction of well bore wall are just
In glide downwards, sealing bucket is firmly squeezed；1 ~ 5CM of height of the sealing bucket, the 103 inner diameter wall indent 601 of sealing bucket, outside
Dome 602 outside diameter two sides；The outer dome of the sealing bucket is interlocked with container 101,102 one end concave shaped annulus of slips；It is described
Container 101 and slips 102 will seal the thickness of the encirclement of bucket 103 and exposed more normal sealing ring size；The encirclement seals bucket
103 method is divided into surrounds (such as Fig. 7), average encirclement (such as Fig. 2) up and down, surrounds ratio 1:5 up and down, averagely surrounds ratio 1:
1；The embracing layer of the upper end is integrated with the container 101；The embracing layer of the lower end is integrated with the slips 102；
Embracing layer on the container 101 expands in downward stepped thread, and the embracing layer on the slips 102 is in upward staged
Screw thread is held tightly；Exposed 1 ~ the 20MM of the sealing bucket；The sealing bucket material includes that colloidal materials, metal bar, engineering are compound
Material；The colloidal materials are rubber, the readily soluble material of resistance to compression；The metal bar: stainless steel, steel alloy, has coloured gold at magnesium alloy
Category and alloy；Engineered composite material are as follows: carbon fiber or fiberglass reinforced polyether-ether-ketone.
The each component material of bridge plug is different, dissolution time sample different in size, and the dissolution sequence of the present invention is pressure
Blastomere 801, container 101, slips 102, retaining mechanism 104；Finally dissolution is enclosed in the sealing bucket 102 of the inside.It seals in this way
Bucket plays sealing function always until deblocking, starts to go into operation.
Beneficial effects of the present invention: 1, structure is simple, whole short and small, improves speed of going into the well, controllably dissolves duration；2, it saves
Production and transportation finished product；3, pressure break and start while gradually degrade, can go into operation immediately；4, not according to ambient conditions selection
Same sealing bucket；5, bridge plug of the present invention is completely solvable in clear water, pollution-free；6, secondary recovery operation can be carried out at any time.
Detailed description of the invention
Fig. 1 is completely new solvable bridge plug stereoscopic schematic diagram
Fig. 2 is the completely new solvable bridge plug main view of average encirclement
Fig. 3 is the slips of bridge plug of the present invention
Fig. 4 is the card in the slips of bridge plug of the present invention
Fig. 5 is the retainer ring in the slips of bridge plug of the present invention
Fig. 6 is the sealing bucket stereoscopic schematic diagram of bridge plug of the present invention
Fig. 7 is to surround completely new solvable bridge plug main view up and down
Fig. 8 pressure break ball.
Specific embodiment
1-8 further describes embodiment of the present invention with reference to the accompanying drawing:
A kind of completely new solvable bridge plug, including pressure break ball (801), container (101), sealing bucket (103), slips (102), locking machine
Structure (104)；The container (101) accommodates the pressure break ball (801) of investment, the sealing bucket (103) be located at container (101) and
The other end of the centre of slips (102), the slips (102) connects retaining mechanism (104)；The slips (102) and locking machine
Structure (104) is integrated.In addition to pressure break ball (801), other components cover on a central axis (105) the above-mentioned component,
Specific connection type can be screw thread, buckle, be directly sleeved on the modes such as above.
It further include multiple cards (201) composition on the slips (102)；The card (201) can be divided into stand alone type and one
Body formula；Each card (201) is at least containing a ceramic beans (202).
When the card (201) are freestanding, retainer ring (203) are arranged by upper and lower ends in the slips (102)
Carry out fixed card (201) synchronizing moving, avoids to separate with portion by extrusion process card (201)；The retainer ring (203) is set
In card slot (401), as shown in Figure 2-5.
When the card (201) are integral type, the slips (102) does not need any external object to fix, integrally
Formula slips on the body slot (301) by equal part, and entire body crack (302) occur in the upper end of slot (301) or lower end, in order to become apparent from
Determination protection scope, slot (301) occurs in pairs, as soon as every centering slot upper end entire body crack (302), another is logical for lower end
Body crack (302), that is to say, that upper and lower ends entire body crack (302) occurs in alternative expression between adjoint two slots (301).
One end outer diameter that the container (101) contacts with sealing bucket (103) is less than and the other end.Reduce and well bore wall
Glide downwards are convenient in friction, firmly squeeze sealing bucket.
1 ~ 5CM of height of the sealing bucket, sealing bucket (103) the inner diameter wall indent (601), dome outside outer diameter two sides
(602).
The outer dome (602) of sealing bucket (103) is engaged with container (101), slips (102) one end concave shaped annulus
It closes；The container (101), slips (102) one end structure respectively with sealing bucket (103) outer dome (602) structure phase
Match, is formed and correspond fastening relationship.
The container (101) and slips (102) will seal the thickness of bucket (103) encirclement and exposed more normal sealing ring size
Degree；The method for surrounding sealing bucket (103), which is divided into, surrounds (such as Fig. 7) up and down, averagely surrounds (such as Fig. 2), surrounds ratio up and down
Example 1:5, ratio 1:1 is averagely surrounded；The embracing layer of the upper end is integrated with the container (101)；The encirclement of the lower end
Layer is integrated with the slips (102)；Embracing layer on the container (101) expands in downward stepped thread, the card
Embracing layer on watt (102) is held tightly in upward stepped thread.
Exposed 1 ~ the 20MM of the sealing bucket.It is preferred that within the scope of 3 ~ 5mm.Its advantage is that passing through the container and card first
Watt protection sealing bucket when in pressure break ball investment container, starts to squeeze concentration dynamics not by the interference of extraneous factor
Uniform stressed makes to seal bucket extrusion from limited gap, to reach a hundred percent sealing effect.
The sealing bucket material includes colloidal materials, metal bar, engineered composite material；The colloidal materials are rubber
Glue, the readily soluble material of resistance to compression；The metal bar: stainless steel, magnesium alloy, steel alloy, nonferrous metal and alloy；Engineered composite material
Are as follows: carbon fiber or fiberglass reinforced polyether-ether-ketone.
The each component material of bridge plug is different, dissolution time sample different in size, and the dissolution sequence of the present invention is pressure
Blastomere (801), container (101), slips (102), retaining mechanism (104)；Finally dissolution is enclosed in the sealing bucket of the inside
(102).Sealing bucket plays sealing function until deblocking, starts to go into operation always in this way.
For those skilled in the art, it is clear that invention is not limited to the details of the above exemplary embodiments, and not
In the case where spirit or essential attributes of the invention, advantageous effect of the invention can be realized in other specific forms.Cause
This, in all respects, the present embodiments are to be considered as illustrative and not restrictive, the scope of the present invention
It is indicated by the appended claims rather than the foregoing description, it is intended that the meaning and scope of the equivalent requirements of the claims will be fallen in
Interior all changes are included within the present invention.It should not treat any reference in the claims as limiting related right
It is required that.
Claims (10)
1. a kind of completely new solvable bridge plug, feature exist, including pressure break ball (801), container (101), sealing bucket (103), slips
(102), retaining mechanism (104)；The container (101) accommodates the pressure break ball (801) of investment, and the sealing bucket (103) is located at
The other end of the centre of container (101) and slips (102), the slips (102) connects retaining mechanism (104)；The slips
(102) it is integrated with retaining mechanism (104).
2. a kind of completely new solvable bridge plug according to claim 1, it further includes multiple on the slips (102) that feature, which exists,
Card (201) composition；The card (201) can be divided into stand alone type and integral type；Each card (201) at least contains one
Ceramic beans (202).
3. a kind of completely new solvable bridge plug according to claim 1, feature exist, when the card (201) are freestanding
When, the slips (102) come fixed card (201) synchronizing moving, is avoided by squeezing by upper and lower ends setting retainer ring (203)
Pressing through journey card (201) cannot separate with portion；The retainer ring (203) is placed in card slot (401)；
When the card (201) are integral type, the slips (102) does not need any external object to fix, integral type card
Watt on the body equal part fluting (301), and there are entire body crack (302) in the upper end of slot (301) or lower end, in order to become apparent from really
Determine protection scope, slot (301) occurs in pairs, as soon as every centering slot upper end entire body crack (302), another is that lower end entire body is split
It stitches (302), that is to say, that upper and lower ends entire body crack (302) occurs in alternative expression between adjoint two slots (301).
4. a kind of completely new solvable bridge plug according to claim 1, feature exist, the container (101) and sealing bucket
(103) one end outer diameter contacted is less than and the other end.
5. a kind of completely new solvable bridge plug according to claim 1, feature exist, height 1 ~ 5CM of the sealing bucket is described
Seal bucket (103) inner diameter wall indent (601), dome (602) outside outer diameter two sides.
6. a kind of completely new solvable bridge plug according to claim 1, feature exist, the outer dome of the sealing bucket and container
(101), slips (102) one end concave shaped annulus is interlocked.
7. a kind of completely new solvable bridge plug according to claim 1, feature exist, the container (101) and slips (102)
The thickness of bucket (103) encirclement and exposed more normal sealing ring size will be sealed；The method for surrounding sealing bucket (103) is divided into
It is lower to surround, averagely surround, ratio 1:5 is surrounded up and down, averagely surrounds ratio 1:1；The embracing layer of the upper end and the splendid attire
Device (101) is integrated；The embracing layer of the lower end is integrated with the slips (102)；Embracing layer on the container (101)
Expand in downward stepped thread, the embracing layer on the slips (102) is held tightly in upward stepped thread.
8. a kind of completely new solvable bridge plug according to claim 1, feature exist, the exposed 1 ~ 20MM of the sealing bucket.
9. a kind of completely new solvable bridge plug according to claim 1, which is characterized in that the sealing bucket material includes colloid
Material, metal bar, engineered composite material；The colloidal materials are rubber, the readily soluble material of resistance to compression；The metal bar: stainless
Steel, magnesium alloy, steel alloy, nonferrous metal and alloy；Engineered composite material are as follows: carbon fiber or fiberglass reinforced polyether-ether-ketone.
10. a kind of completely new solvable bridge plug according to claim 1, which is characterized in that each component material of bridge plug is not
Equally, dissolution time sample different in size, the dissolution sequence of the present invention is pressure break ball (801), container (101), slips
(102), retaining mechanism (104)；Finally dissolution is enclosed in the sealing bucket (102) of the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910121538.0A CN109973048A (en) | 2019-02-16 | 2019-02-16 | A kind of completely new solvable bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910121538.0A CN109973048A (en) | 2019-02-16 | 2019-02-16 | A kind of completely new solvable bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973048A true CN109973048A (en) | 2019-07-05 |
Family
ID=67077082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910121538.0A Pending CN109973048A (en) | 2019-02-16 | 2019-02-16 | A kind of completely new solvable bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973048A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021155613A1 (en) * | 2020-02-07 | 2021-08-12 | 四川维泰科创石油设备制造有限公司 | Soluble metal sealing clamping seat |
| CN113250649A (en) * | 2020-02-07 | 2021-08-13 | 四川维泰科创石油设备制造有限公司 | Underground plugging system and using method thereof |
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| CN109296338A (en) * | 2018-12-07 | 2019-02-01 | 柳江 | A kind of solvable bridge plug of self-decomposition formula |
| CN109339737A (en) * | 2018-12-07 | 2019-02-15 | 柳江 | A kind of solvable bridge plug of dissolution controllable type |
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| US20160273300A1 (en) * | 2014-08-14 | 2016-09-22 | Halliburton Energy Services, Inc. | Degradable wellbore isolation devices with varying degradation rates |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021155613A1 (en) * | 2020-02-07 | 2021-08-12 | 四川维泰科创石油设备制造有限公司 | Soluble metal sealing clamping seat |
| CN113250649A (en) * | 2020-02-07 | 2021-08-13 | 四川维泰科创石油设备制造有限公司 | Underground plugging system and using method thereof |
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Application publication date: 20190705 |
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