CN109236230A - A kind of magnesium-base metal dissolvable bridge plug - Google Patents
A kind of magnesium-base metal dissolvable bridge plug Download PDFInfo
- Publication number
- CN109236230A CN109236230A CN201811430754.5A CN201811430754A CN109236230A CN 109236230 A CN109236230 A CN 109236230A CN 201811430754 A CN201811430754 A CN 201811430754A CN 109236230 A CN109236230 A CN 109236230A
- Authority
- CN
- China
- Prior art keywords
- slips
- bridge plug
- magnesium
- packing element
- central tube
- 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
- 239000010953 base metal Substances 0.000 title claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 125000006850 spacer group Chemical group 0.000 claims abstract description 11
- 238000005275 alloying Methods 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000008188 pellet Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 4
- 238000004873 anchoring Methods 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 2
- 240000005546 Piper methysticum Species 0.000 abstract description 2
- 235000016787 Piper methysticum Nutrition 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000004454 trace mineral analysis 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
- E21B33/13—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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/122—Multiple string packers
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)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of magnesium-base metal dissolvable bridge plug, including central tube, shear pin of giving up, spacer ring, upper slips, upper centrum, packing element, protection ring, hypocentrum, lower slips, pedestal and anti-blocking floral tube；The spacer ring, upper slips, upper centrum, packing element, protection ring, hypocentrum, lower slips are sequentially sleeved on central tube from top to bottom, and pedestal is connected on central tube by the external screw-thread of central tube lower end；Outer cylinder upper end is set to be threadedly coupled on igniting setting tool by T-type.Compared with prior art, which selects magnesium-based soluble metal material, and solubility property is reliable；Using upper and lower two-way monoblock type kava structure, monoblock type slips junction rupture slips opens when reaching the thrust of 2-3t, and slip insert is combined using ceramic particle with alloying pellet, guarantees anchoring effect and anchorage force；Pedestal has anti-rotation structure design, when chance sand plug or shaft bottom situation complexity need to bore plug in a short time, brill is facilitated to fill in.
Description
Technical field
The present invention relates to exploitation of oil-gas field technical field, in particular to a kind of magnesium-base metal dissolvable bridge plug.
Background technique
As shale gas and Low permeable oil and gas reservoirs exploitation obtain good result, horizontal well stage fracturing technology has become page
The agent technology of the unconventional resource volume increase exploitation such as rock gas, Low Permeability Oil/gas, coal bed gas.As staged fracturing important tool it
One, bridge plug is using increasingly extensive.It can be wherein completely dissolved in returning drain after solvable bridge plug pressure break, save and bore mill expense, realized
Production is quickly asked, full-bore may be implemented in pit shaft, reduces operating risk；However many offices are had also discovered in a large amount of site operation
It is sex-limited, constrain the technology further genralrlization application.By long-term live trace analysis, domestic solvable bridge plug is primarily present at present
The problems such as insoluble after premature failure, pressure, significantly limits the popularization and application of the technology.There is the basic original of problem above in analysis
Because be solvable bridge plug material, structure and construction technology and different well's conditions matching it is poor；And the technology is since it is to hole condition
Selectivity is stronger, solves the problems, such as the matching of solvable bridging material, structure and technique and different well's conditions, is key problem in technology.
Summary of the invention
The object of the present invention is to provide a kind of magnesium-base metal dissolvable bridge plugs.
For this purpose, technical solution of the present invention is as follows:
A kind of magnesium-base metal dissolvable bridge plug, including central tube, shear pin of giving up, spacer ring, upper slips, upper centrum, packing element,
Protection ring, hypocentrum, lower slips and pedestal；The spacer ring, upper slips, upper centrum, packing element, protection ring, hypocentrum, lower slips are certainly
It is sequentially sleeved on central tube under above, pedestal is connected on central tube by the external screw-thread of central tube lower end；Central tube upper end
By giving up, shear pin is fixed on the connector for setting cylinder, and the connector upper end for setting cylinder is threaded in igniting by T-type and sits
On envelope tool mandrel, sets outer cylinder upper end and be threadedly coupled on igniting setting tool lower end outer cylinder by T-type, set outer cylinder lower end
End face is extruded on solvable bridge plug spacer ring.
Further, the slips tooth material of the upper slips and lower slips is the combination of ceramic particle and alloying pellet
Object.
Further, the contact surface of the contact surface of the upper centrum and upper slips, hypocentrum and lower slips is all made of tiltedly
Face design.
Further, the packing element uses three groups of packing element combining forms, and packing element medium design has support ring, in, lower glue
Design has protection ring between cylinder, it is ensured that packing element sealed reliable.
Further, the upper and lower centrum inner surface is formed with certain roughness surface, and the shape on upper and lower centrum
At there is circulation port.
Further, it is formed with shelves pin on the pedestal and slots in pedestal lower end vertical direction.
Compared with prior art, which has the advantage that
(1) magnesium-based soluble metal material is selected, solubility property is reliable；
(2) using upper and lower two-way monoblock type kava structure, rupture card in monoblock type slips junction when reaching the thrust of 2-3t
It watt opens, slip insert is combined with alloying pellet using ceramic particle, guarantee anchoring effect and anchorage force；
(3) pedestal has anti-rotation structure design, when chance sand plug or shaft bottom situation complexity need to bore plug in a short time, brill is facilitated to fill in；
(4) design has shelves pin and slots in pedestal lower end vertical direction on pedestal, and it is solvable to prevent from returning blocking on upper level ball
While bridge plug, moreover it is possible to increase area of passage, sand plug is effectively prevent to accumulate；
(5) design has circulation port on pedestal, can effectively increase pedestal after pressure and return drain contact area, it is ensured that tool energy
Enough quickly dissolutions；
(6) central tube bottom end can connect anti-blocking floral tube according to selection, and the design of floral tube structure can effectively prevent sand plug；
(7) centrum inner surface design is processed into certain roughness surface, and solvable bridge plug is facilitated to set rear axial locking；
(8) hypocentrum design has circulation port on, can effectively increase centrum, central tube after pressure and return drain contact area,
Ensure that tool can quickly dissolve；
(9) centrum and slips contact surface use inclined design, make slips by bevel angle and the design of slips ground-angle
It opens and is easy, anchoring is reliable；
(10) solvable packing element uses three groups of packing element combining forms, and packing element medium design has support ring, in, set between lower rubber cylinder
In respect of protection ring, it is ensured that packing element sealed reliable, and it is all solvable；
(11) solvable bridge plug ontology uses four kinds of soluble materials, selects difference can according to each component structural and intensity difference
Molten material, at the same can mildly be returned according to live well drain behavior pattern selection surface whether coating.
Detailed description of the invention
Fig. 1 is the cross-sectional view of magnesium-base metal dissolvable bridge plug provided by the invention.
Fig. 2 is the structural schematic diagram of solvable bridge plug pedestal.
Fig. 3 is the structural schematic diagram of magnesium-base metal dissolvable bridge plug.
Fig. 4 is the structural schematic diagram of solvable bridge plug slips.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described further, but following embodiments are absolutely not to this hair
It is bright to have any restrictions.
A kind of magnesium-base metal dissolvable bridge plug, as Fig. 1~4 show, including central tube 3, shear pin 4 of giving up, spacer ring 5, upper slips
7, upper centrum 10, packing element 11, protection ring 12, hypocentrum 13, lower slips (14) and pedestal (15)；The spacer ring 5, upper slips 7, on
Centrum 10, packing element 11, protection ring 12, hypocentrum 13, lower slips 14 are sequentially sleeved in from top to bottom on central tube 3, and pedestal 15 passes through
The external screw-thread of 3 lower end of central tube is connected on central tube 3；3 upper end of central tube is fixed on the company for setting cylinder by shear pin 4 of giving up
On connector, the connector upper end for setting cylinder is threaded on igniting setting tool mandrel by T-type, is set outer cylinder upper end and is passed through
T-type is threadedly coupled on igniting setting tool lower end outer cylinder, is set outer cylinder lower end surface and is extruded on solvable bridge plug spacer ring 5.
Preferably, the slips tooth material of the upper slips 7 and lower slips 14 is the combination of ceramic particle and alloying pellet
Object.
Preferably, the upper centrum 10 and the contact surface, hypocentrum 13 and the contact surface of lower slips 14 of upper slips 7 are adopted
Use inclined design.
Preferably, the packing element 11 uses three groups of packing element combining forms, and 11 medium design of packing element has support ring, in, under
Design has protection ring between packing element, it is ensured that packing element sealed reliable.
Preferably, the upper centrum 10,13 inner surface of hypocentrum are formed with certain roughness surface, and in upper centrum
10, circulation port is formed on hypocentrum 13.
Preferably, it is formed with shelves pin on the pedestal 15 and slots in pedestal lower end vertical direction.
The application method of magnesium-base metal dissolvable bridge plug provided by the invention is as follows:
Solvable bridge plug is pumped using cable and enters well, tubing string is successively that solvable bridge plug+setting cylinder+cable sets work from bottom to up
Tool+perforating gun+cable to well head, after solvable bridge plug is pumped to design position, firing cable setting tool of lighting a fire is generated downward
Thrust promotion sets outer cylinder, and pedestal 15 and 3 screwed connection of central tube, central tube 3 are connected to cable by connector and set at this time
It on the mandrel of tool, sets outer cylinder and pushes down on spacer ring 5, cut starting shear pin 6 and push down on upper slips 7, upper centrum 10, squeeze
Packing element 11, hypocentrum 13, lower slips 14, spreading is anchored on casing wall upper lower slips respectively at this time, and packing element 11 is extruded completion
Set, when setting force continue to rise cut give up shear pin 4 when, complete giving up for solvable bridge plug, upper portable cable to shooting point carries out
Perforating job, perforation act cable after the completion, and from from well head pitching to solvable bridge plug, solvable ball forms close with bridge plug central tube 3
Envelope starts to carry out pressing crack construction；After pressing crack construction, solvable bridge plug is completely dissolved for 6-18 days in fracturing outlet liquid, is realized
Pit shaft full-bore.
Claims (6)
1. a kind of magnesium-base metal dissolvable bridge plug, which is characterized in that including central tube (3), shear pin of giving up (4), spacer ring (5), on
Slips (7), upper centrum (10), packing element (11), protection ring (12), hypocentrum (13), lower slips (14) and pedestal (15)；It is described every
Ring (5), upper slips (7), upper centrum (10), packing element (11), protection ring (12), hypocentrum (13), lower slips (14) are from top to bottom
It is sequentially sleeved on central tube (3), pedestal (15) is connected on central tube (3) by the external screw-thread of central tube (3) lower end；Center
Pipe (3) upper end is fixed on the connector for setting cylinder by shear pin of giving up (4), and the connector upper end for setting cylinder passes through T-type screw thread
It is connected on igniting setting tool mandrel, sets outer cylinder upper end and be threadedly coupled on igniting setting tool lower end outer cylinder by T-type,
Outer cylinder lower end surface is set to be extruded on solvable bridge plug spacer ring (5).
2. magnesium-base metal dissolvable bridge plug according to claim 1, which is characterized in that the upper slips (7) and lower card
The slips tooth material of watt (14) is the composition of ceramic particle and alloying pellet.
3. magnesium-base metal dissolvable bridge plug according to claim 2, which is characterized in that the upper centrum (10) and upper card
The contact surface of the contact surface of watt (7), hypocentrum (13) and lower slips (14) is all made of inclined design.
4. magnesium-base metal dissolvable bridge plug according to claim 3, which is characterized in that the packing element (11) uses three groups
Packing element combining form, packing element (11) medium design have support ring, in, between lower rubber cylinder design have protection ring, it is ensured that packing element sealing
Reliably.
5. magnesium-base metal dissolvable bridge plug according to claim 4, which is characterized in that the upper and lower centrum (10,13)
Inner surface is formed with certain roughness surface, and is formed with circulation port on upper and lower centrum (10,13).
6. magnesium-base metal dissolvable bridge plug according to claim 5, which is characterized in that be formed on the pedestal (15)
Shelves pin is simultaneously slotted in pedestal lower end vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430754.5A CN109236230A (en) | 2018-11-28 | 2018-11-28 | A kind of magnesium-base metal dissolvable bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430754.5A CN109236230A (en) | 2018-11-28 | 2018-11-28 | A kind of magnesium-base metal dissolvable bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236230A true CN109236230A (en) | 2019-01-18 |
Family
ID=65074198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811430754.5A Pending CN109236230A (en) | 2018-11-28 | 2018-11-28 | A kind of magnesium-base metal dissolvable bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236230A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109899028A (en) * | 2019-04-26 | 2019-06-18 | 天津市玛特瑞科技有限公司 | A kind of solvable bridge plug |
| CN109973045A (en) * | 2019-03-29 | 2019-07-05 | 东方宝麟科技发展(北京)有限公司 | Complete solvable bridge plug |
| CN110067529A (en) * | 2019-05-24 | 2019-07-30 | 北京易联结科技发展有限公司 | A kind of solvable bridge plug of single deck tape-recorder watt |
| CN110185414A (en) * | 2019-07-05 | 2019-08-30 | 山东博赛特石油技术有限公司 | A kind of solvable bridge plug of outer expanding |
| 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 |
| CN110847844A (en) * | 2019-11-27 | 2020-02-28 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Fixed-point packing and layering extrusion sealing tool and using method thereof |
| CN111101888A (en) * | 2019-10-09 | 2020-05-05 | 中国石油化工股份有限公司华东油气分公司 | Novel soluble bridge plug |
| CN111441742A (en) * | 2020-05-13 | 2020-07-24 | 中国石油集团渤海钻探工程有限公司 | Soluble bridge plug seat sealing head bag |
| CN111648739A (en) * | 2020-06-29 | 2020-09-11 | 中国石油天然气集团有限公司 | Rubber sleeve protection type soluble bridge plug for fracturing |
| CN112253044A (en) * | 2020-11-05 | 2021-01-22 | 中国石油集团渤海钻探工程有限公司 | High-ductility small-diameter dissolvable bridge plug |
| CN112483037A (en) * | 2019-09-12 | 2021-03-12 | 中国石油化工股份有限公司 | Packer |
| CN113107417A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气股份有限公司 | Soluble releasing plug |
| CN115182702A (en) * | 2022-07-07 | 2022-10-14 | 太原科技大学 | Degradable bidirectional slip pressure abutment bridge plug |
| 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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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN109973045A (en) * | 2019-03-29 | 2019-07-05 | 东方宝麟科技发展(北京)有限公司 | Complete solvable bridge plug |
| CN109899028A (en) * | 2019-04-26 | 2019-06-18 | 天津市玛特瑞科技有限公司 | A kind of solvable bridge plug |
| CN110067529A (en) * | 2019-05-24 | 2019-07-30 | 北京易联结科技发展有限公司 | A kind of solvable bridge plug of single deck tape-recorder watt |
| CN110185414A (en) * | 2019-07-05 | 2019-08-30 | 山东博赛特石油技术有限公司 | A kind of solvable bridge plug of outer expanding |
| CN110185414B (en) * | 2019-07-05 | 2024-03-19 | 山东博赛特石油技术有限公司 | External expansion type soluble bridge plug |
| 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 |
| CN112483037A (en) * | 2019-09-12 | 2021-03-12 | 中国石油化工股份有限公司 | Packer |
| CN111101888A (en) * | 2019-10-09 | 2020-05-05 | 中国石油化工股份有限公司华东油气分公司 | Novel soluble 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 |
| CN110566156A (en) * | 2019-10-19 | 2019-12-13 | 海塔石油科技有限公司 | Bidirectional anchoring soluble fracturing bridge plug |
| CN110847844A (en) * | 2019-11-27 | 2020-02-28 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Fixed-point packing and layering extrusion sealing tool and using method thereof |
| CN110847844B (en) * | 2019-11-27 | 2023-08-18 | 中国石油天然气集团有限公司 | Fixed-point packing layered extrusion sealing tool and use method thereof |
| CN113107417A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气股份有限公司 | Soluble releasing plug |
| CN113107417B (en) * | 2020-01-13 | 2022-05-10 | 中国石油天然气股份有限公司 | Soluble releasing plug |
| CN111441742A (en) * | 2020-05-13 | 2020-07-24 | 中国石油集团渤海钻探工程有限公司 | Soluble bridge plug seat sealing head bag |
| CN111648739A (en) * | 2020-06-29 | 2020-09-11 | 中国石油天然气集团有限公司 | Rubber sleeve protection type soluble bridge plug for fracturing |
| CN112253044A (en) * | 2020-11-05 | 2021-01-22 | 中国石油集团渤海钻探工程有限公司 | High-ductility small-diameter dissolvable bridge plug |
| CN115182702B (en) * | 2022-07-07 | 2023-03-10 | 太原科技大学 | Degradable bidirectional slip pressure abutment bridge plug |
| CN115182702A (en) * | 2022-07-07 | 2022-10-14 | 太原科技大学 | Degradable bidirectional slip pressure abutment bridge plug |
| 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 |
| CN117684912B (en) * | 2024-01-24 | 2024-05-31 | 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: 20190118 |
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| WD01 | Invention patent application deemed withdrawn after publication |