CN106437615A - Soluble bridge plug - Google Patents
Soluble bridge plug Download PDFInfo
- Publication number
- CN106437615A CN106437615A CN201610983558.5A CN201610983558A CN106437615A CN 106437615 A CN106437615 A CN 106437615A CN 201610983558 A CN201610983558 A CN 201610983558A CN 106437615 A CN106437615 A CN 106437615A
- Authority
- CN
- China
- Prior art keywords
- guard circle
- ceramic particle
- slips
- bridging plug
- mandrel
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 47
- 239000003292 glue Substances 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims description 28
- 238000004873 anchoring Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 2
- 238000003801 milling Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 239000003345 natural gas Substances 0.000 abstract 1
- 239000003209 petroleum derivative Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 230000000638 stimulation Effects 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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/134—Bridging 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a soluble bridge plug for petroleum and natural gas exploitation, comprising a mandrel, a soluble ball, a guide shoe fixedly mounted at the bottom of the mandrel, and a seal system, an anchor system and a push ring sleeving the mandrel; the seal system comprises a glue barrel, upper and lower cones identical in structure and mounted at two ends of the glue barrel, and a protective ring assembly; the anchor system comprises upper and lower slip assemblies identical in structure and mirror-symmetrically mounted on outer conical surfaces of the upper and lower cones; the upper and lower slip assemblies each comprise a single slip and a slip hoop clamped to the single slip; at least one ceramic particle is embedded in the outer wall of each single slip, the outer surface of the ceramic particles is higher than the outer walls of the single slips, the raised portions of the ceramic particles are of slant structure, the lowest points of slants are flush with the outer walls of the single slips or lower than the outer walls of the single slips. Since soluble metal materials and/or degradable technologies are employed, the soluble bridge plug is short of a grinding milling step, takes less operating time and provides better protection for an oil-gas reservoir when compared to a traditional fracturing bridge plug.
Description
Technical field
The invention belongs to technical field of petroleum extraction, after more particularly to a kind of fracturing operation, milling need not be bored, automatically solve
The solvable bridging plug of envelope degraded.
Background technology
In oil gas proved reserves in recent years, the hyposmosis reserves proportion rate of climb is increasing year by year.Low Permeability Oil/gas
Tibetan permeability, porosity are low, and anisotropism is strong, and most Oil/gas Wells must be implemented Hydro Fracturing Stimulation Treatment rear and see production capacity, pressure
Split effect in Low permeable oil and gas reservoirs exploitation for the yield-increasing technology increasingly apparent.
Since the Houghton oil field of nineteen forty-seven U.S. Kansas successfully carries out the first in the world mouth well crushing test, pass through
The development of more than 60 year, fracturing technique is all rapidly progressed to fracturing unit from technique, fracturing material, it has also become improve individual well
Yield and the important means improving oil-gas field development effect.
During exploitation of oil-gas field, the application ratio of fracturing technique is wide, and effect can not look down upon, and it realizes steady for oil field
Produce, the target of high yield serves good support.The raising of fracturing technique effectively acted as link up with is connected storage oil space and
The effect of seepage channel.
Adopting now composite bridge plug or big orifice bridging plug both at home and abroad oil gas field, such technique later stage needs to be ground more
Milling operation, can use more liquid during milling, stratum can be produced with secondary pollution, and the process of milling can cause
Time and the consumption of expense, can be very good to avoid these problems using solvable bridging plug.
Content of the invention
The present invention provides a kind of certain time after pressure break terminates for solving technical problem present in known technology
Interior can decompose, eliminate milling operation, save the activity duration, protect oil-gas Layer, fixed, with low cost, assembling
Facilitate solvable bridging plug,
The present invention is adopted the technical scheme that by solving technical problem present in known technology：
A kind of solvable bridging plug, including mandrel, solvable ball, be fixedly mounted on mandrel bottom leads footwear, is sleeved on mandrel
Sealing system, anchoring system and throw-out collar；Mandrel, solvable ball, lead footwear, sealing system, anchoring system and throw-out collar all using molten
Agent can dissolve and/or the material of degraded is made；
It is characterized in that：Described sealing system includes glue bucket, be arranged in the structure identical at glue bucket two ends centrum and under
Centrum and guard circle assembly；Described guard circle assembly includes guard circle in split-type, the outer guard circle of split-type and guard circle
Garter spring, the inner conical surface cooperation of the male cone (strobilus masculinus) of described interior guard circle and outer guard circle, and interior guard circle and outer guard circle interlock and join
Dress, described guard circle garter spring is sleeved in interior guard circle and the guard circle garter spring groove of outer guard circle, described interior guard circle and outer guarantor
It is provided with anti-offset align member between guard ring；
It is identical and be mirrored into being symmetrically mounted on the upper card of centrum and hypocentrum male cone (strobilus masculinus) that described anchoring system includes structure
Watt assembly and lower slipses assembly；Described upper and lower slips assembly all includes slips monomer, the slips hoop being installed on slips monomer
Ring；One ceramic particle is at least embedded with the outer wall of described slips monomer, the outer surface of described ceramic particle exceeds slips list
The outer wall of body, the portion that exceeds of ceramic particle becomes ramp structure, and the minimum point on inclined-plane is concordant with the outer wall of slips monomer or is less than
The outer wall of slips monomer.
The present invention can also adopt following technical measures：
The outer wall of described slips monomer is radially provided with ceramic particle inlaid hole, and described ceramic particle inlaid hole embeds
Dress ceramic particle, the upper surface of described ceramic particle is ramp structure.
The outer wall of described slips monomer is along the ceramic particle inlaid hole becoming 8～25 ° of angles with radial direction, described pottery
Setting-in ceramic particle in grain inlaid hole, the upper surface of described ceramic particle is planar structure.
At least provided with a circle ceramic particle inlaid hole, footwear are led on ceramic particle inlaid hole edge to the described cylindrical circumferential direction leading footwear
Radial direction is arranged.
Described glue bucket inwall centre position is provided with the yielding weakness groove that section is arc.
Described anti-offset align member includes the L-type locating notch of the two ends setting of interior guard circle top edge, outer guard circle
Upper setting positioning convex；L-type locating notch after guard circle is equipped with split-type forms a locating notch, described outer guard circle
Positioning convex be inserted in above-mentioned locating notch；Or, interior guard circle is provided with positioning convex, and outer guard circle is provided with L
Type locating notch；L-type locating notch after the outer guard circle of split-type is equipped with forms a locating notch, the determining of described interior guard circle
Position projection is inserted in above-mentioned locating notch.
Described throw-out collar and slips assembly, upper lower cone are with outer guard circle, lower slipses assembly and the counterface leading footwear
Wedge-like engagement face.
The angle in wedge-like engagement face is 3～15 °.
The present invention has the advantages and positive effects that：Because the present invention adopts technique scheme, employ solvable material
Material and/or degradable rubber, thus saving the expense of liquid in later stage operation, tool expense, save the activity duration, more
Good protects stratum, prevents stratum secondary pollution, can reach existing composite bridge plug or big orifice bridging plug plays separate stratum fracfturing
Effect, can decompose in the certain time after pressure break terminates simultaneously and dissolve, eliminate milling operation, not only save operation
Time, also preferably protect oil-gas Layer.In addition, to realize using ceramic embedded particle being engaged fixing and traditional bridge with overcoat
Plug compare have the advantages that fixed, with low cost, easy to assembly, the present invention in addition to degradable glue bucket, other spare and accessory parts
Can be made up of the macromolecular material that can dissolve alloy or high-strength degradable.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is stereogram of the present invention；
Fig. 4 is that the present invention sets status architecture schematic diagram；
Fig. 5 is after the present invention sets and sleeve pipe mated condition structural representation；
Fig. 6 is upper slipses assembly structure schematic diagram；
Fig. 7 is slips monomer structure schematic diagram；
Fig. 8 is slips monomer perspective view；
Fig. 9 is B-B sectional view in Fig. 7；
Figure 10 is ceramic particle embedding structure schematic diagram；
Figure 11 is another kind of slips monomer structure schematic diagram；
Figure 12 is the slips monomer ceramic embedded grain structure schematic diagram of Figure 11；
Figure 13 is guard circle assembly structure schematic diagram；
Figure 14 is outer guard circle structural representation；
Figure 15 is interior guard circle structural representation.
In figure：1st, mandrel；2nd, solvable ball；3rd, footwear are led；3-1, ceramic particle inlaid hole；4th, sealing system；4-1, glue bucket；4-
10th, weak groove；4-2, upper centrum；4-3, hypocentrum；4-4, guard circle assembly；4-40, interior guard circle；4-41, outer guard circle；4-
42nd, guard circle garter spring；4-43, L-type locating notch；4-44, positioning convex；4-45, locating notch；5th, anchoring system；5-1, on
Slips assembly；5-2, lower slipses assembly；5-10, slips monomer；5-11, slips garter spring；5-12, ceramic particle；5-13, pottery
Grain inlaid hole；6th, throw-out collar；7th, sleeve pipe；A, wedge-like engagement face.
Specific embodiment
For content of the invention, feature and effect of the present invention can be further appreciated that, hereby enumerate following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1 to Fig. 6, a kind of solvable bridging plug, including mandrel 1, solvable ball 2, it is fixedly mounted on leading of mandrel bottom
Footwear 3, are sleeved on sealing system 4 on mandrel, anchoring system 5 and throw-out collar 6, and above-mentioned mandrel is hollow structure or solid knot
Structure；Mandrel 1, solvable ball 2, lead footwear 3, sealing system 4, anchoring system 5 and throw-out collar 6 all using solvent can dissolve and/or degrade
Material make；Specifically, in addition to degradable glue bucket, other spare and accessory parts can be for can dissolve alloy or high intensity for the present invention
Degradable macromolecular material is made, for example Al alloys andMg alloys.Thus saving the expense of liquid in later stage operation, tool expense,
Eliminate milling operation, save the activity duration.
Described sealing system 4 includes glue bucket 4-1, is arranged on centrum 4-2 and hypocentrum in the structure identical at glue bucket two ends
4-3 and guard circle assembly 4-4；Described guard circle assembly includes guard circle 4-40 in split-type, the outer guard circle 4-41 of split-type
And guard circle garter spring 4-42, refer to Figure 13 to Figure 15, the inner conical surface of described interior guard circle and the male cone (strobilus masculinus) of outer guard circle are joined
Close, and interior guard circle and outer guard circle interlock equipped, are provided with anti-offset positioning structure between described interior guard circle and outer guard circle
Part 4-5；Anti-offset align member effectively prevents the outer guard circle 4-41 of guard circle 4-40 in split-type during setting, split-type
Misplacing, leading to glue bucket to be extruded in adjacent lobe body gap uneven in adjacent lobe body gap, thus leading in other words
Set inefficacy.
It is identical and be mirrored into being symmetrically mounted on the upper card of centrum and hypocentrum male cone (strobilus masculinus) that described anchoring system 5 includes structure
Watt assembly 5-1 and lower slipses assembly 5-2；Described upper and lower slips assembly all includes slips monomer 5-10, is installed on slips monomer
Slips garter spring 5-11；One ceramic particle 5-12 is at least embedded with the outer wall of described slips monomer, described ceramic particle
Outer surface exceeds the outer wall of slips monomer, and the portion that exceeds of ceramic particle becomes ramp structure, and the ramp structure of upper lower slipses assembly becomes
Specular, the minimum point on inclined-plane concordant with the outer wall of slips monomer or less than slips monomer outer wall.In actual setting,
The minimum point on inclined-plane is located at direction of exerting pressure；So pushing with throw-out collar, gradually realizes setting, slips garter spring during pushing
Rupture one by one with guard circle garter spring, glue bucket outwards deforms realization sealing, the ceramic particle on slips inlayed gradually is engaged in set
The inwall of pipe 7, such bridging plug is formed for about one in sleeve pipe and uniformly irreversible sets structure.
Refer to Fig. 7 to Figure 10；The outer wall of the 5-10 of slips monomer described in said structure is radially provided with pottery
Grain inlaid hole 5-13, setting-in ceramic particle in described ceramic particle inlaid hole, the upper surface of described ceramic particle is ramp structure.
The 5-10 of slips monomer described in said structure can also adopt following structure, such as Figure 11 and Figure 12, that is, in described card
The outer wall of watt monomer 5-10 is along the ceramic particle inlaid hole 5-13 becoming 8～25 ° of angles with radial direction, described ceramic particle setting-in
In the hole is embedded in ceramic particle, and the upper surface of described ceramic particle is planar structure.
The described cylindrical circumferential direction leading footwear 3 at least provided with a circle ceramic particle inlaid hole 3-1, lead by ceramic particle inlaid hole edge
The radial direction setting of footwear.
Described glue bucket 4-1 inwall centre position is provided with the yielding weakness groove 4-10 that section is arc.
Refer to Figure 13 to Figure 15, described anti-offset align member includes the L-type of the two ends setting of interior guard circle top edge
Locating notch 4-43, outer guard circle arranges positioning convex 4-44；L-type locating notch after guard circle is equipped with split-type is formed
One locating notch 4-45, the positioning convex of described outer guard circle is inserted in above-mentioned locating notch；Or, on interior guard circle
It is provided with positioning convex, outer guard circle is provided with L-type locating notch；L-type locating notch after the outer guard circle of split-type is equipped with is formed
One locating notch, the positioning convex of described interior guard circle is inserted in above-mentioned locating notch.
Described throw-out collar and slips assembly, upper lower cone are with outer guard circle, lower slipses assembly and the counterface leading footwear
Wedge-like engagement face A, the angle in wedge-like engagement face is preferably 3～15 °, so ensure adjacent during setting between mating surface
Form self-locking, and ensure the stability setting.
This solvable bridging plug is set using hydraulic pressure or igniter, set rear slips can prevent on bridging plug move or
Move down, glue bucket can shut annular space, so that bridging plug lower channel is blocked after pitching, bridging plug can bear the pressure reduction of 70MPa, sets
After the completion of, pressure break can be carried out with overlying strata to bridging plug, wait a period of time after, the slips on bridging plug due to there occurs dissolving,
It is not enough to provide support force, bridging plug becomes loosening, and bridging plug initially enters dissolving link, after waiting several days time, whole bridging plug
Metal can all dissolve, and glue bucket is degraded into molecule, and finally entirely solvable bridging plug is only left insoluble ceramic particle.
Employ soluble material and/or degradable rubber, thus saving the expense of liquid in later stage operation, instrument takes
With saving the activity duration, preferably protecting stratum, prevent stratum secondary pollution, existing composite bridge plug or big can be reached
Latus rectum bridging plug plays the effect of separate stratum fracfturing, can decompose and dissolve, eliminate mill in the certain time after pressure break terminates simultaneously
Milling operation, not only saves the activity duration, also preferably protects oil-gas Layer.In addition, to be realized using ceramic embedded particle with
Overcoat occlusion is fixing compare with traditional bridging plug have the advantages that fixed, with low cost, easy to assembly.
The above is only to presently preferred embodiments of the present invention, not the present invention is made with any pro forma restriction,
Every technical spirit according to the present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, belongs to
In the range of technical solution of the present invention.
Claims (8)
1. a kind of solvable bridging plug, including mandrel, solvable ball, be fixedly mounted on mandrel bottom leads footwear, is sleeved on close on mandrel
Envelope system, anchoring system and throw-out collar；Mandrel, solvable ball, lead footwear, sealing system, anchoring system and throw-out collar all using solvent
Can dissolve and/or the material of degraded is made；
It is characterized in that：Described sealing system includes glue bucket, is arranged on centrum and hypocentrum in the structure identical at glue bucket two ends
And guard circle assembly；Described guard circle assembly includes guard circle in split-type, the outer guard circle of split-type and guard circle garter spring,
The inner conical surface cooperation of the male cone (strobilus masculinus) of described interior guard circle and outer guard circle, and interior guard circle and outer guard circle interlock equipped, institute
State guard circle garter spring to be sleeved in interior guard circle and the guard circle garter spring groove of outer guard circle, described interior guard circle and outer guard circle it
Between be provided with anti-offset align member；
It is identical and be mirrored into being symmetrically mounted on centrum and the upper slipses of hypocentrum male cone (strobilus masculinus) are total that described anchoring system includes structure
Become and lower slipses assembly；Described upper and lower slips assembly all includes slips monomer, the slips garter spring being installed on slips monomer；Institute
State and a ceramic particle is at least embedded with the outer wall of slips monomer, the outer surface of described ceramic particle exceeds the outer of slips monomer
Wall, the portion that exceeds of ceramic particle becomes ramp structure, and the minimum point on inclined-plane is concordant with the outer wall of slips monomer or is less than slips list
The outer wall of body.
2. solvable bridging plug according to claim 1 it is characterised in that：The outer wall of described slips monomer is radially provided with
Ceramic particle inlaid hole, setting-in ceramic particle in described ceramic particle inlaid hole, the upper surface of described ceramic particle is tied for inclined-plane
Structure.
3. solvable bridging plug according to claim 1 it is characterised in that：The outer wall edge of described slips monomer is become with radial direction
The ceramic particle inlaid hole of 8～25 ° of angles, setting-in ceramic particle in described ceramic particle inlaid hole, described ceramic particle upper
End face is planar structure.
4. solvable bridging plug according to claim 1 it is characterised in that：The described cylindrical circumferential direction leading footwear is at least provided with a circle
Ceramic particle inlaid hole, ceramic particle inlaid hole is along the radial direction setting leading footwear.
5. solvable bridging plug according to claim 1 it is characterised in that：Described glue bucket inwall centre position is provided with section and is
The yielding weakness groove of arc.
6. solvable bridging plug according to claim 1 it is characterised in that：Described anti-offset align member is included on interior guard circle
The L-type locating notch of the two ends setting at edge, outer guard circle arranges positioning convex；L-type after guard circle is equipped with split-type
Locating notch forms a locating notch, and the positioning convex of described outer guard circle is inserted in above-mentioned locating notch；Or, interior
Guard circle is provided with positioning convex, and outer guard circle is provided with L-type locating notch；L-type after the outer guard circle of split-type is equipped with positions
Breach forms a locating notch, and the positioning convex of described interior guard circle is inserted in above-mentioned locating notch.
7. solvable bridging plug according to claim 1 it is characterised in that：Described throw-out collar and slips assembly, upper lower cone are with outward
Guard circle, lower slipses assembly and the counterface leading footwear are wedge-like engagement face.
8. solvable bridging plug according to claim 7 it is characterised in that：The angle in wedge-like engagement face is 3～15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983558.5A CN106437615A (en) | 2016-11-08 | 2016-11-08 | Soluble bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983558.5A CN106437615A (en) | 2016-11-08 | 2016-11-08 | Soluble bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106437615A true CN106437615A (en) | 2017-02-22 |
Family
ID=58207898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610983558.5A Pending CN106437615A (en) | 2016-11-08 | 2016-11-08 | Soluble bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437615A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013181A (en) * | 2017-05-25 | 2017-08-04 | 克拉玛依启源石油科技有限公司 | Dissolvable bridge plug and bridging plug frac system |
| CN108035694A (en) * | 2018-01-03 | 2018-05-15 | 成都维泰油气能源技术有限公司 | A kind of cement retainer |
| CN108643849A (en) * | 2018-04-11 | 2018-10-12 | 中国石油天然气股份有限公司 | Solvable slips and solvable bridge plug |
| CN109577910A (en) * | 2019-02-01 | 2019-04-05 | 天津凯英莱克机电技术有限公司 | A kind of solvable bridge plug of all-metal pressure break |
| CN109826591A (en) * | 2019-02-16 | 2019-05-31 | 陕西海格瑞恩实业有限公司 | A kind of solvable bridge plug of full-bore magnesium alloy |
| CN109826592A (en) * | 2019-02-16 | 2019-05-31 | 陕西海格瑞恩实业有限公司 | A kind of short and small complete solvable bridge plug suitable for varying environment |
| CN110513075A (en) * | 2019-08-16 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | A kind of solvable bridge plug and accelerate bridge plug dissolution can dissolving device |
| CN110513074A (en) * | 2019-08-16 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | Dissolvable bridge plug |
| CN110566156A (en) * | 2019-10-19 | 2019-12-13 | 海塔石油科技有限公司 | Bidirectional anchoring soluble fracturing bridge plug |
| CN110761735A (en) * | 2018-07-27 | 2020-02-07 | 成都德维石油技术服务有限责任公司 | Ball-carrying type dissolvable bridge plug |
| WO2021096855A1 (en) * | 2019-11-12 | 2021-05-20 | Baker Hughes Oilfield Operations Llc | Degradable anchoring device with gavanic corrosion resistant component interface |
| CN117684912A (en) * | 2024-01-24 | 2024-03-12 | 西安方元能源工程有限责任公司 | Soluble reverse bridge plug |
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| CN105484700A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Large drift diameter rapid drilling bridge plug for fracturing |
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| WO2012158261A1 (en) * | 2011-05-19 | 2012-11-22 | Baker Hughes Incorporated | Easy drill slip with degradable materials |
| CN204782918U (en) * | 2015-07-07 | 2015-11-18 | 吉林市旭峰激光科技有限责任公司 | Dissolubility bridging plug based on rubber sleeve |
| CN105484699A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Drilling and milling-free bridge plug for fracturing |
| CN105484700A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Large drift diameter rapid drilling bridge plug for fracturing |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013181A (en) * | 2017-05-25 | 2017-08-04 | 克拉玛依启源石油科技有限公司 | Dissolvable bridge plug and bridging plug frac system |
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| CN108035694A (en) * | 2018-01-03 | 2018-05-15 | 成都维泰油气能源技术有限公司 | A kind of cement retainer |
| CN108035694B (en) * | 2018-01-03 | 2023-11-24 | 成都维泰油气能源技术有限公司 | Cement retainer |
| CN108643849A (en) * | 2018-04-11 | 2018-10-12 | 中国石油天然气股份有限公司 | Solvable slips and solvable bridge plug |
| CN108643849B (en) * | 2018-04-11 | 2020-07-10 | 中国石油天然气股份有限公司 | Soluble slip and soluble bridge plug |
| CN110761735A (en) * | 2018-07-27 | 2020-02-07 | 成都德维石油技术服务有限责任公司 | Ball-carrying type dissolvable bridge plug |
| CN109577910A (en) * | 2019-02-01 | 2019-04-05 | 天津凯英莱克机电技术有限公司 | A kind of solvable bridge plug of all-metal pressure break |
| CN109577910B (en) * | 2019-02-01 | 2021-05-28 | 成都通土科技有限公司 | All-metal fracturing soluble bridge plug |
| CN109826592A (en) * | 2019-02-16 | 2019-05-31 | 陕西海格瑞恩实业有限公司 | A kind of short and small complete solvable bridge plug suitable for varying environment |
| CN109826591A (en) * | 2019-02-16 | 2019-05-31 | 陕西海格瑞恩实业有限公司 | A kind of solvable bridge plug of full-bore magnesium alloy |
| CN110513074A (en) * | 2019-08-16 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | Dissolvable bridge plug |
| CN110513074B (en) * | 2019-08-16 | 2021-11-30 | 中国石油天然气集团有限公司 | Dissolvable bridge plug |
| CN110513075B (en) * | 2019-08-16 | 2022-05-06 | 中国石油天然气集团有限公司 | Soluble bridge plug and soluble device for accelerating dissolution of bridge plug |
| CN110513075A (en) * | 2019-08-16 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | A kind of solvable bridge plug and accelerate bridge plug dissolution can dissolving device |
| CN110566156A (en) * | 2019-10-19 | 2019-12-13 | 海塔石油科技有限公司 | Bidirectional anchoring soluble fracturing bridge plug |
| CN110566156B (en) * | 2019-10-19 | 2024-06-07 | 海塔石油科技有限公司 | Two-way anchoring soluble fracturing bridge plug |
| WO2021096855A1 (en) * | 2019-11-12 | 2021-05-20 | Baker Hughes Oilfield Operations Llc | Degradable anchoring device with gavanic corrosion resistant component interface |
| US11306559B2 (en) | 2019-11-12 | 2022-04-19 | Baker Hughes Oilfield Operations Llc | Degradable anchoring device with gavanic corrosion resistant component interface |
| CN117684912A (en) * | 2024-01-24 | 2024-03-12 | 西安方元能源工程有限责任公司 | Soluble reverse bridge plug |
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Application publication date: 20170222 |