CN114575777B - Thermal recovery packer - Google Patents
Thermal recovery packer Download PDFInfo
- Publication number
- CN114575777B CN114575777B CN202210228618.8A CN202210228618A CN114575777B CN 114575777 B CN114575777 B CN 114575777B CN 202210228618 A CN202210228618 A CN 202210228618A CN 114575777 B CN114575777 B CN 114575777B
- Authority
- CN
- China
- Prior art keywords
- ring
- packer
- head
- seal head
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000011084 recovery Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 26
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method 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
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
-
- 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
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a thermal recovery packer, which comprises an end socket and a compression ring; and (3) end socket: the inside of upper end outer loop side is round corner structure, the perforation has been seted up to the inside of head, and the perforation internally mounted of head has the sleeve pipe, the lower extreme outer loop face of head is provided with the spacing ring, the last anchor ring of spacing ring is circumference array and is provided with supplementary branch, and the top surface of supplementary branch and the upper end lower surface fixed connection of head, the upper surface outer loop side of spacing ring is circumference array and is provided with the connecting plate, the spout has been seted up to the surface of connecting plate, the fly leaf is installed to the inside of spout that the surface was seted up to the connecting plate in linear array, the annular groove has been seted up to the upper surface of head, the packer is less in the range after being heated, be provided with buffer gear between the contact point between the position of this packer main deformation inflation and the wall of a well simultaneously, can effectively avoid the packer to appear sealed not tight or damaged condition to appear, and then the security when making the packer use is stronger.
Description
Technical Field
The invention relates to the technical field of packers, in particular to a thermal recovery packer.
Background
With the continuous deep entry of oil field development, deep wells, ultra-deep wells and thermal recovery wells are widely developed in large oil fields in China, and a high-temperature packer is used as one of important thermal recovery tools, so that guarantee is provided for successful implementation of various thermal recovery process technologies.
However, when the existing thermal production packer is used, the thermal production packer is easy to expand due to heating, the size and the sealing degree of the packer are further easily affected, meanwhile, after the existing thermal production packer is deformed due to heating, the phenomenon that the packer is broken due to collision and extrusion of the packer and a well wall is easily caused, and the safety of the packer in use is poor is caused.
Disclosure of Invention
The invention aims to overcome the existing defects, and provides the thermal recovery packer, the amplitude of the packer is smaller after the packer is heated, meanwhile, the buffer mechanism is arranged between the contact point between the main deformation expansion part of the packer and the well wall, so that the situation that the packer is not tightly sealed or damaged can be effectively avoided, the safety of the packer in use is further higher, and the problems in the background art can be effectively solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the thermal recovery packer comprises a seal head and a compression ring;
And (3) end socket: the upper end outer ring side is of a round corner structure, a through hole is formed in the seal head, a sleeve is arranged in the through hole of the seal head, a limiting ring is arranged on the lower end outer ring surface of the seal head, an auxiliary supporting rod is arranged on the upper ring surface of the limiting ring in a circumferential array, the top surface of the auxiliary supporting rod is fixedly connected with the upper end lower surface of the seal head, a connecting plate is arranged on the upper surface outer ring side of the limiting ring in a circumferential array, a sliding groove is formed in the outer surface of the connecting plate, a movable plate is arranged in the inner part of the sliding groove formed in the outer surface of the connecting plate in a linear array, an annular groove is formed in the upper surface of the seal head, a through groove is formed in the inner bottom surface of the annular groove formed in the upper surface of the seal head in a circumferential array, a fixing ring is arranged on the lower side of the upper end outer ring surface of the seal head, and a bolt hole corresponding to an external preset connecting bolt is formed in the upper surface of the fixing ring in a circumferential array;
Compression ring: the clamping connection is in the inside of the annular groove that the upper surface of head was offered, and the lower surface of clamping ring is circumference array and is provided with spacing post, and spacing post corresponds the joint with the logical groove that the inside of head was offered, and the lower extreme outside of spacing post is the slope structure.
Further, still include the sealing ring, the sealing ring is installed in the upper end lower surface inner ring side of head, and the lower surface of sealing ring is circumference array and has seted up anti-skidding groove. The sealing ring that sets up can effectively promote the leakproofness of packer when using, avoids the packer to appear the condition of tip seepage and influence the effect of thermal recovery when using, and then makes the use of packer safer and convenient.
Further, the sealing ring further comprises a lining ring, a slot with an L-shaped structure is formed in the inner side of the lower surface of the fixing ring, the lining ring is clamped in the slot formed in the lower surface of the fixing ring, and the lower end of the inner ring surface of the lining ring is in contact with the outer ring surface of the sealing ring. The sealing performance of the packer in use can be further improved through the lining ring, the damage to the packer caused by uneven ground can be avoided through the lining ring, the packer is safer to use, and the service life of the packer is effectively prolonged.
Further, the anti-theft device also comprises a base plate, wherein the base plate is arranged on the lower surface of the fixed ring, the lower surface of the base plate is provided with through holes corresponding to the bolt holes formed in the lower surface of the fixed ring, and the inner ring side of the upper surface of the base plate is contacted with the outer ring side of the lower surface of the lining ring. The backing plate that sets up can avoid the packer to appear when the installation ground unevenness and lead to the phenomenon that solid fixed ring and ground contact position produced the gap to appear to make the use of packer more convenient and safe.
Further, still include the rubber slab, the rubber slab is installed in the surface of fly leaf, and the surface corner department of rubber slab is round corner structure, and the surface spraying of rubber slab has carborundum wear-resisting coating. The rubber plate that sets up can guarantee the intensity after the packer installation, can avoid the pipeline inner wall of unevenness to influence the installation of packer simultaneously, and then makes the use of packer more convenient.
Compared with the prior art, the invention has the beneficial effects that: the thermal recovery packer has the following advantages:
1. The packer is smaller in amplitude after being heated, and meanwhile, the buffer mechanism is arranged between the contact point between the part of the main deformation expansion of the packer and the well wall, so that the situation that the packer is not tight in sealing or damaged can be effectively avoided, and further the safety of the packer in use is stronger.
2. The sealing ring that sets up can effectively promote the leakproofness of packer when using, avoids the packer to appear the condition of tip seepage and influence the effect of thermal recovery when using, and then makes the use of packer safer and convenient.
3. The sealing performance of the packer in use can be further improved through the lining ring, the damage to the packer caused by uneven ground can be avoided through the lining ring, the packer is safer to use, and the service life of the packer is effectively prolonged.
4. The backing plate that sets up can avoid the packer to appear when the installation ground unevenness and lead to the phenomenon that solid fixed ring and ground contact position produced the gap to appear to make the use of packer more convenient and safe.
5. The rubber plate that sets up can guarantee the intensity after the packer installation, can avoid the pipeline inner wall of unevenness to influence the installation of packer simultaneously, and then makes the use of packer more convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a left side cross-sectional structure of the present invention;
FIG. 3 is an enlarged view of the left side section A of the present invention;
fig. 4 is an enlarged view of the left side section B of the present invention.
In the figure: 1 head, 2 sleeve pipes, 3 clamping rings, 4 limiting rings, 5 auxiliary supporting rods, 6 connecting plates, 7 limiting columns, 8 movable plates, 9 fixed rings, 10 sealing rings, 11 lining rings, 12 backing plates and 13 rubber plates.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present embodiment provides a technical solution: the thermal recovery packer comprises a seal head 1 and a compression ring 3;
seal head 1: the upper end outer ring side is of a round corner structure, a through hole is formed in the seal head 1, a sleeve 2 is arranged in the through hole of the seal head 1, a limiting ring 4 is arranged on the lower end outer ring surface of the seal head 1, an upper annular surface of the limiting ring 4 is provided with auxiliary struts 5 in a circumferential array, the top surface of the auxiliary struts 5 is fixedly connected with the upper end lower surface of the seal head 1, a connecting plate 6 is arranged on the upper surface outer ring side of the limiting ring 4 in a circumferential array, a sliding groove is formed in the outer surface of the connecting plate 6, a movable plate 8 is arranged in a linear array in the sliding groove formed in the outer surface of the connecting plate 6, an annular groove is formed in the upper surface of the seal head 1, a through groove is formed in the inner bottom surface of the annular groove formed in the upper surface of the seal head 1 in a circumferential array, a fixing ring 9 is arranged on the lower side of the upper end outer ring surface of the seal head 1, and bolt holes corresponding to the connecting bolts are formed in the circumferential array in the upper surface of the fixing ring 9;
And (3) a compression ring 3: the clamping connection is in the inside of the annular groove that the upper surface of head 1 was offered, and the lower surface of clamping ring 3 is circumference array and is provided with spacing post 7, and spacing post 7 corresponds the joint with the logical groove that the inside of head 1 was offered, and the lower extreme outside of spacing post 7 is the slope structure.
In this embodiment, the sealing device further comprises a sealing ring 10, the sealing ring 10 is mounted on the inner ring side of the lower surface of the upper end of the sealing head 1, and anti-slip grooves are formed in the lower surface of the sealing ring 10 in a circumferential array. The sealing ring 10 that sets up can effectively promote the leakproofness of packer when using, avoids the packer to appear the condition of tip seepage and influence the effect of thermal recovery when using, and then makes the use of packer safer and convenient.
In this embodiment, the seal ring further includes a liner ring 11, a slot with an L-shaped structure is formed in the inner side of the lower surface of the fixed ring 9, the liner ring 11 is clamped in the slot formed in the lower surface of the fixed ring 9, and the lower end of the inner ring surface of the liner ring 11 contacts with the outer ring surface of the seal ring 10. The sealing performance of the packer in use can be further improved by the aid of the lining ring 11, damage to the packer caused by uneven ground can be avoided by the lining ring 11, the packer is safer to use, and the service life of the packer is effectively prolonged.
In this embodiment, the pad plate 12 is mounted on the lower surface of the fixed ring 9, the lower surface of the pad plate 12 is provided with a through hole corresponding to the bolt hole provided on the lower surface of the fixed ring 9, and the inner ring side of the upper surface of the pad plate 12 is contacted with the outer ring side of the lower surface of the liner ring 11. The backing plate 12 that sets up can avoid the packer to appear when the installation ground unevenness and lead to the fixed ring 9 to produce the phenomenon in gap with ground contact position to make the use of packer more convenient and safe.
In this embodiment, still include rubber sheet 13, rubber sheet 13 installs in the surface of fly leaf 8, and the surface corner of rubber sheet 13 is the fillet structure, and the surface spraying of rubber sheet 13 has the carborundum wear-resistant coating. The rubber plate 13 that sets up can guarantee the intensity after the packer is installed, can avoid the pipeline inner wall of unevenness to influence the installation of packer simultaneously, and then makes the use of packer more convenient.
The working principle of the thermal recovery packer provided by the invention is as follows: install the packer of thermal recovery in predetermineeing the position to make sleeve pipe 2 with oil production pipeline parcel, during the thermal recovery, sleeve pipe 2 is heated, sleeve pipe 2 gives off the heat through connecting plate 6, stand 7 and fly leaf 8 this moment, and the packer is when the installation, push down clamping ring 3 drive stand 7 with fly leaf 8 outwards extrudees, and then make the rubber slab 13 that the outside end of fly leaf 8 set up and wall of a well contact, when the outward extrusion of fly leaf 8 thermal expansion is heated simultaneously, can extrude rubber slab 13 and make rubber slab 13 produce the deformation, avoid fly leaf 8 directly to extrude the wall of a well and appear wall of a well or fly leaf 8 damage and influence the condition that packer is safe in utilization appear.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (1)
1. The thermal recovery packer is characterized in that: comprises a sealing head (1) and a compression ring (3);
Seal head (1): the upper end outer ring side is of a round corner structure, a through hole is formed in the seal head (1), a sleeve (2) is arranged in the through hole of the seal head (1), a limiting ring (4) is arranged on the lower end outer ring surface of the seal head (1), an auxiliary supporting rod (5) is arranged on the upper ring surface of the limiting ring (4) in a circumferential array, the top surface of the auxiliary supporting rod (5) is fixedly connected with the upper end lower surface of the seal head (1), a connecting plate (6) is arranged on the upper surface outer ring side of the limiting ring (4) in a circumferential array, a sliding groove is formed in the outer surface of the connecting plate (6), a movable plate (8) is arranged in the inner portion of the sliding groove formed in the outer surface of the connecting plate (6) in a linear array, an annular groove is formed in the upper surface of the seal head (1), a through groove is formed in the inner bottom surface of the annular groove formed in the circumferential array, a fixing ring (9) is arranged on the lower side of the upper end outer ring surface of the seal head (1), and a bolt hole corresponding to an external preset connecting bolt is formed in the circumferential array;
Compression ring (3): the clamping device is clamped in an annular groove formed in the upper surface of the seal head (1), limiting columns (7) are arranged on the lower surface of the compression ring (3) in a circumferential array, the limiting columns (7) are correspondingly clamped with a through groove formed in the seal head (1), and the outer side of the lower end of each limiting column (7) is of an inclined structure;
The sealing device is characterized by further comprising a sealing ring (10), wherein the sealing ring (10) is arranged on the inner ring side of the lower surface of the upper end of the sealing head (1), and anti-skid grooves are formed in the lower surface of the sealing ring (10) in a circumferential array;
The inner side of the lower surface of the fixed ring (9) is provided with a slot with an L-shaped structure, the lining ring (11) is clamped in the slot formed in the lower surface of the fixed ring (9), and the lower end of the inner ring surface of the lining ring (11) is contacted with the outer ring surface of the sealing ring (10);
The anti-theft device is characterized by further comprising a base plate (12), wherein the base plate (12) is arranged on the lower surface of the fixed ring (9), the lower surface of the base plate (12) is provided with a through hole corresponding to a bolt hole formed in the lower surface of the fixed ring (9), and the inner ring side of the upper surface of the base plate (12) is contacted with the outer ring side of the lower surface of the lining ring (11);
Still include rubber slab (13), rubber slab (13) are installed in the surface of fly leaf (8), and the surface corner department of rubber slab (13) is round corner structure, and the surface spraying of rubber slab (13) has carborundum wear-resisting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228618.8A CN114575777B (en) | 2022-03-08 | 2022-03-08 | Thermal recovery packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228618.8A CN114575777B (en) | 2022-03-08 | 2022-03-08 | Thermal recovery packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114575777A CN114575777A (en) | 2022-06-03 |
| CN114575777B true CN114575777B (en) | 2024-06-04 |
Family
ID=81773544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210228618.8A Active CN114575777B (en) | 2022-03-08 | 2022-03-08 | Thermal recovery packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114575777B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE31933E (en) * | 1979-10-05 | 1985-07-02 | Otis Engineering Corporation | High temperature well packer |
| US5311938A (en) * | 1992-05-15 | 1994-05-17 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
| US6203020B1 (en) * | 1998-11-24 | 2001-03-20 | Baker Hughes Incorporated | Downhole packer with element extrusion-limiting device |
| RU77338U1 (en) * | 2008-04-28 | 2008-10-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | MECHANICAL PACKER OF RADIAL AXIAL ACTION |
| CN207004473U (en) * | 2017-06-27 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of twin-tub compensative hot producing packer |
| CN207660585U (en) * | 2017-12-27 | 2018-07-27 | 盘锦奥格威机械制造有限公司 | Elastic claw formula packer in thermal recovery oil well |
| CN213450316U (en) * | 2020-09-23 | 2021-06-15 | 大庆丹枫石油技术开发有限公司 | Durable packer |
| CN113338842A (en) * | 2021-07-06 | 2021-09-03 | 郭洪霞 | Hydraulic expansion type packer |
| CN214273602U (en) * | 2021-01-29 | 2021-09-24 | 成都泽赛普石油工程技术服务有限公司 | Soluble ball seat |
| CN113464089A (en) * | 2021-08-24 | 2021-10-01 | 福建镁孚科技有限公司 | Soluble bridge plug |
| CN113530486A (en) * | 2021-08-10 | 2021-10-22 | 江苏益马机械有限公司 | Oil recovery well head seal structure |
| CN215632878U (en) * | 2021-09-23 | 2022-01-25 | 天津福民石油机械设备技术有限公司 | Use convenient blowout preventer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201018334D0 (en) * | 2010-11-01 | 2010-12-15 | Extreme Invent As | Expandable packer |
-
2022
- 2022-03-08 CN CN202210228618.8A patent/CN114575777B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE31933E (en) * | 1979-10-05 | 1985-07-02 | Otis Engineering Corporation | High temperature well packer |
| US5311938A (en) * | 1992-05-15 | 1994-05-17 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
| US6203020B1 (en) * | 1998-11-24 | 2001-03-20 | Baker Hughes Incorporated | Downhole packer with element extrusion-limiting device |
| RU77338U1 (en) * | 2008-04-28 | 2008-10-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | MECHANICAL PACKER OF RADIAL AXIAL ACTION |
| CN207004473U (en) * | 2017-06-27 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of twin-tub compensative hot producing packer |
| CN207660585U (en) * | 2017-12-27 | 2018-07-27 | 盘锦奥格威机械制造有限公司 | Elastic claw formula packer in thermal recovery oil well |
| CN213450316U (en) * | 2020-09-23 | 2021-06-15 | 大庆丹枫石油技术开发有限公司 | Durable packer |
| CN214273602U (en) * | 2021-01-29 | 2021-09-24 | 成都泽赛普石油工程技术服务有限公司 | Soluble ball seat |
| CN113338842A (en) * | 2021-07-06 | 2021-09-03 | 郭洪霞 | Hydraulic expansion type packer |
| CN113530486A (en) * | 2021-08-10 | 2021-10-22 | 江苏益马机械有限公司 | Oil recovery well head seal structure |
| CN113464089A (en) * | 2021-08-24 | 2021-10-01 | 福建镁孚科技有限公司 | Soluble bridge plug |
| CN215632878U (en) * | 2021-09-23 | 2022-01-25 | 天津福民石油机械设备技术有限公司 | Use convenient blowout preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114575777A (en) | 2022-06-03 |
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