CN111456676A - Integrated large-diameter packer rubber cylinder assembly - Google Patents
Integrated large-diameter packer rubber cylinder assembly Download PDFInfo
- Publication number
- CN111456676A CN111456676A CN202010360736.5A CN202010360736A CN111456676A CN 111456676 A CN111456676 A CN 111456676A CN 202010360736 A CN202010360736 A CN 202010360736A CN 111456676 A CN111456676 A CN 111456676A
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- China
- Prior art keywords
- packing element
- groove
- rubber cylinder
- seat
- baffle
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- 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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- 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
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
Abstract
The invention relates to the technical field of packers and discloses an integrated large-diameter packer rubber cylinder assembly which comprises a central pipe column, wherein a fixing ring is fixedly connected to the outer surface of the central pipe column, a fixing sleeve is fixedly connected to the outer surface of the fixing ring, a rubber cylinder seat is movably sleeved on the outer surface of the central pipe column, an inner groove is formed in the end face of the inner side of the rubber cylinder seat, and the inner surface of the inner groove is movably sleeved with the fixing sleeve. This integration major diameter packer packing element assembly, through cup jointing packing element seat and the fixed cover activity joint on the central tube post surface, and the inside groove and the fixed cover activity joint that the inside of packing element seat was equipped with, the pressure oil compression in the inside groove of packing element seat slip process is, drive the slide and make the baffle that the slide lateral surface is connected slide outward and slide and be close to the wall of a well for when the packing element inflation, packing element lateral surface edge receives the baffle separation, has effectively avoided the unusual inflation deformation in packing element lateral surface edge, has improved the quality of seat seal.
Description
Technical Field
The invention relates to the technical field of packers, in particular to an integrated large-diameter packer rubber cylinder assembly.
Background
The packer is used as an important downhole tool for the exploitation of oil and gas wells, is used for packing annular spaces between a central pipe column and a well hole and between the central pipe column and the pipe columns so as to isolate a production zone and realize the control of liquid production (injection), mainly comprises the central pipe column, a rubber sleeve assembly, a slip assembly and the like, wherein the rubber sleeve assembly of the packer is used for setting the corresponding annular space in the well during construction, and the setting reliability directly influences the development of subsequent oil and gas exploitation construction operation.
The rubber sleeve assembly of the existing integrated large-diameter packer is characterized in that the rubber sleeve seat is extruded to radially expand to realize seat sealing through the upper end face and the lower end face of the rubber sleeve in the using process, a space exists between the rubber sleeve seat and a well, the rubber sleeve after expansion can expand to the outside through the space existing between the rubber sleeve seat and the well, the edge of the outer side of the rubber sleeve is abnormally deformed, the structural performance of the rubber sleeve is seriously damaged, the rubber sleeve breaks and fails, the seat sealing effect of the rubber sleeve is influenced, and the using effect is not good.
In addition, the rubber sleeve assembly of the existing integrated large-diameter packer, the rubber sleeve maintains a certain structure stable state after being extruded and expanded, because the underground oil is transported inside the central pipe column, the oil temperature difference between a deeper part and a lower part is large, the surface temperature of the central pipe column rises when the oil at the lower part is transported, the rubber sleeve directly sleeved outside the central pipe column receives the temperature transmitted to further expand by heating, the structure stable state of the rubber sleeve is damaged, the structural stability of the rubber sleeve is reduced, the rubber sleeve is easy to break under the low-temperature condition, and the service performance of the rubber sleeve is reduced.
On the other hand, current integration major diameter packer packing element assembly when carrying out extrusion setting, when the packing element seat extrudees the packing element to the inboard, when the packing element seat slides along the center tube post surface, in order to avoid silt to get into cup joints gap department, cup joints closely usually, and the slip in-process lacks effective lubrication, and packing element seat sliding wear is big, has reduced life, and the result of use is not good.
Disclosure of Invention
The invention provides an integrated large-diameter packer rubber sleeve assembly, which has the advantages of protecting the outer edge of a rubber sleeve and the rubber sleeve, insulating heat and reducing abrasion, and solves the problems in the background art.
The invention provides the following technical scheme: integration major diameter packer packing element assembly, including the center tube post, the outer fixed surface of center tube post is connected with solid fixed ring, gu fixed ring's outer fixed surface is connected with fixed cover, the packing element seat has been cup jointed in the surface activity of center tube post, the inside groove has been seted up to the medial surface of packing element seat, the internal surface and the fixed cover activity of inside groove are cup jointed, the spout has been seted up to the surface of packing element seat, the spout is linked together with the inside groove, the inside fixedly connected with slide of spout, the baffle that lateral surface fixed connection of slide has, the outer fixed surface of packing element seat is connected with the compensating plate that is located the baffle outside, the packing element has been cup jointed in the surface activity of fixed.
Preferably, the shape of the sliding plate is rectangular, the shape of the baffle plate is fan-shaped, the sliding plate and the baffle plate are both positioned in the sliding chute, and the cross section of the sliding chute is matched with the shapes of the sliding plate and the baffle plate.
Preferably, the number of the baffle plates and the number of the compensation plates are the same, and the baffle plates and the compensation plates are alternately distributed below the baffle plates.
Preferably, a clamping groove is formed in the rubber cylinder seat, a clamping block is fixedly connected to the outer end face of the fixing sleeve, and the inner surface of the clamping groove is movably clamped with the clamping block.
Preferably, the clamping groove is communicated with the inner groove, and the length of the clamping groove is smaller than that of the inner groove.
Preferably, the inner surface of the rubber cylinder seat is provided with an oil groove, the outer surface of the rubber cylinder seat is provided with an annular groove, and the oil groove is communicated with the annular groove.
Preferably, the inner side surface of the fixture block is arc-shaped, and the width of the fixture block is larger than the thickness of the fixing sleeve.
Preferably, the distance between the side surface of the fixing ring and the rubber cylinder seat is smaller than the distance between the end surface of the outer side surface of the fixing sleeve and the bottom of the inner groove.
The invention has the following beneficial effects:
1. this integration major diameter packer packing element assembly, add solid fixed ring and fixed cover through the surface at the center tube post, and make and cup joint packing element seat and the fixed cover activity joint on the center tube post surface, and the inside groove that the inside of packing element seat was equipped with and the fixed cover activity joint, the pressure oil compression in the inside groove of packing element seat slip process is, it slides and makes the baffle that the slide lateral surface is connected cunning outward be close to the wall of a well to drive the slide, when making the packing element inflation, packing element lateral surface edge receives the baffle separation, packing element lateral surface edge unusual inflation deformation has effectively been avoided, the quality of seat sealing has been improved.
2. This integration major diameter packer packing element assembly through utilizing fixed cover, form sealed cavity between central tubular column and the packing element seat three to inject partial lubricating oil in sealed cavity, make to have certain space between packing element medial surface and the central tubular column, the inside heat transfer of effective separation central tubular column avoids the packing element to stabilize the secondary inflation that is heated after the inflation, improves the stability of packing element inflation stable state, improves packing element inner structure stable performance, avoids receiving the temperature difference change breakage.
3. This integration major diameter packer packing element assembly, through set up oil groove and annular at the medial surface of packing element seat for the packing element seat slides in-process and impresses the lubricating oil that is located fixed cover in the annular of oil groove outer end intercommunication, and the lubricating oil circumference in the annular is attached to the center tube post surface, obtains effective lubrication between packing element seat in the slip and the center tube post, has reduced the sliding wear of packing element seat when guaranteeing sealed effect, prolongs the life of packing element seat, excellent in use effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the connection between the stationary sleeve and the center string in accordance with the present invention;
FIG. 5 is an exploded view of the present invention between a structural cement mortar bed and a center string;
FIG. 6 is a schematic structural view of the rubber barrel holder according to the present invention;
FIG. 7 is a cross-sectional view of the structural adhesive cartridge holder of the present invention.
In the figure: 1. a central tubular string; 2. a fixing ring; 3. fixing a sleeve; 4. a rubber cylinder seat; 5. an inner tank; 6. a chute; 7. a slide plate; 8. a baffle plate; 9. a compensation plate; 10. a rubber cylinder; 11. a card slot; 12. a clamping block; 13. an oil sump; 14. and a ring groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, an integrated large-diameter packer rubber cylinder assembly includes a center pipe column 1, a fixing ring 2 is fixedly connected to an outer surface of the center pipe column 1, a fixing sleeve 3 is fixedly connected to an outer surface of the fixing ring 2, a rubber cylinder base 4 is movably sleeved on an outer surface of the center pipe column 1, an inner groove 5 is formed in an inner side end surface of the rubber cylinder base 4, an inner surface of the inner groove 5 is movably sleeved with the fixing sleeve 3, a sliding groove 6 is formed in an outer surface of the rubber cylinder base 4, the sliding groove 6 is communicated with the inner groove 5, a sliding plate 7 is fixedly connected to an inner portion of the sliding groove 6, a baffle plate 8 is fixedly connected to an outer side surface of the sliding plate 7, a compensation plate 9 located outside the baffle plate 8 is.
Wherein, slide 7's shape is the rectangle, and baffle 8's shape is fan-shaped, and slide 7 and baffle 8 all are located the inside of spout 6, and the cross sectional shape adaptation slide 7 of spout 6 and baffle 8's shape, fan-shaped baffle 8 effectively improve and shelter from the area, and the rectangle is so that slide 7 cup joints the shape of 6 spout of department and is realized baffle 8's linear displacement.
The number of the baffle plates 8 and the number of the compensation plates 9 are the same, the baffle plates 8 and the compensation plates 9 are alternately distributed below the baffle plates 8, and when the baffle plates 8 slide out of the outer edges of the blocking and supporting rubber cylinders 10, the compensation plates 9 are used for compensating gaps.
Wherein, draw-in groove 11 has been seted up to the inside of packing element seat 4, the outer terminal surface fixedly connected with fixture block 12 of fixed cover 3, the internal surface and the fixture block 12 activity joint of draw-in groove 11 utilize the joint of fixture block 12 and draw-in groove 11, improve the slip stability of packing element seat 4, avoid rotatory.
The clamping groove 11 is communicated with the inner groove 5, the length of the clamping groove 11 is smaller than that of the inner groove 5, the length of the clamping groove 11 is far larger than that of the clamping block 12, and therefore the fixing sleeve 3 is guaranteed to have enough sliding distance when extruding pressure oil in the inner groove 5.
Wherein, the internal surface of packing element seat 4 has seted up oil groove 13, and the surface of packing element seat 4 has seted up annular 14, and oil groove 13 is linked together with annular 14, utilizes oil groove 13 to introduce the lubricating oil between fixed cover 3, solid fixed ring 2 and packing element seat 4 in annular 14, and the pressure oil in annular 14 is paintd on the medial surface of packing element seat 4 in packing element seat 4 slip process.
The inner side surface of the clamping block 12 is arc-shaped, the width of the clamping block 12 is larger than the thickness of the fixing sleeve 3, the clamping block 12 is guaranteed to slide in the inner groove 5 through the fixing sleeve 3, and friction is reduced.
Wherein, the distance between the side surface of the fixing ring 2 and the rubber cylinder seat 4 is less than the distance between the end surface of the outer side surface of the fixing sleeve 3 and the bottom of the inner groove 5, thereby enlarging the range of the extrusion pressure oil and avoiding the fixing sleeve 3 from sliding to the bottom surface of the inner groove 5 too early.
According to the working principle, the upper and lower rubber cylinder bases 4 slide inwards along the fixed sleeve 3, the rubber cylinder 10 is pressed to expand and deform, the volume of an inner groove 5 of the rubber cylinder base 4 is reduced, the oil pressure is increased, the sliding plate 7 in the sliding groove 6 drives the baffle plate 8 to slide out of the sliding groove 6, the edge of the outer side face of the rubber cylinder 10 is blocked by the baffle plate 8 and keeps expanding, when the rubber cylinder base 4 slides, lubricating oil between the fixed sleeve 3 and the central pipe column 1 flows to the outer side of the oil groove along the oil groove 13, the lubricating oil is pressed into the annular groove 14, pressure oil is attached to the outer surface of the central pipe column 1, and the lubricating oil in the annular groove 14 along with the rubber; when underground oil is transported, the temperature of the central pipe column 1 rises, the temperature of lubricating oil between the fixed sleeve 3 and the central pipe column 1 rises, and the temperature change of the rubber sleeve 10 is small.
Claims (8)
1. Integration major diameter packer packing element assembly, including center tube post (1), its characterized in that: the outer surface of the central pipe column (1) is fixedly connected with a fixed ring (2), the outer surface of the fixed ring (2) is fixedly connected with a fixed sleeve (3), the outer surface of the central pipe column (1) is movably sleeved with a rubber cylinder seat (4), the inner side end surface of the rubber cylinder seat (4) is provided with an inner groove (5), the inner surface of the inner groove (5) is movably sleeved with the fixed sleeve (3), the outer surface of the rubber cylinder seat (4) is provided with a sliding groove (6), the sliding chute (6) is communicated with the inner groove (5), a sliding plate (7) is fixedly connected inside the sliding chute (6), the outer side surface of the sliding plate (7) is fixedly connected with a baffle (8), the outer surface of the rubber cylinder seat (4) is fixedly connected with a compensation plate (9) located on the outer side of the baffle (8), and the outer surface of the fixed sleeve (3) is movably sleeved with a rubber cylinder (10).
2. The integrated large diameter packer rubber assembly of claim 1, wherein: the shape of slide (7) is the rectangle, the shape of baffle (8) is fan-shaped, slide (7) and baffle (8) all are located the inside of spout (6), the shape adaptation slide (7) of the cross-section of spout (6) and the shape of baffle (8).
3. The integrated large diameter packer rubber assembly of claim 2, wherein: the number of the baffle plates (8) and the number of the compensation plates (9) are the same, and the baffle plates (8) and the compensation plates (9) are alternately distributed below the baffle plates (8).
4. The integrated large diameter packer rubber assembly of claim 1, wherein: the rubber cylinder fixing device is characterized in that a clamping groove (11) is formed in the rubber cylinder seat (4), a clamping block (12) is fixedly connected to the outer end face of the fixing sleeve (3), and the inner surface of the clamping groove (11) is movably clamped with the clamping block (12).
5. The integrated large diameter packer rubber assembly of claim 4, wherein: the clamping groove (11) is communicated with the inner groove (5), and the length of the clamping groove (11) is smaller than that of the inner groove (5).
6. The integrated large diameter packer rubber assembly of claim 4, wherein: oil groove (13) have been seted up to the internal surface of packing element seat (4), annular (14) have been seted up to the surface of packing element seat (4), oil groove (13) are linked together with annular (14).
7. The integrated large diameter packer rubber assembly of claim 4, wherein: the inner side surface of the clamping block (12) is arc-shaped, and the width of the clamping block (12) is larger than the thickness of the fixing sleeve (3).
8. The integrated large diameter packer rubber assembly of claim 1, wherein: the distance between the side surface of the fixing ring (2) and the rubber cylinder seat (4) is smaller than the distance between the end surface of the outer side surface of the fixing sleeve (3) and the bottom of the inner groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360736.5A CN111456676B (en) | 2020-04-30 | 2020-04-30 | Integrated large-diameter packer rubber cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360736.5A CN111456676B (en) | 2020-04-30 | 2020-04-30 | Integrated large-diameter packer rubber cylinder assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111456676A true CN111456676A (en) | 2020-07-28 |
| CN111456676B CN111456676B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010360736.5A Active CN111456676B (en) | 2020-04-30 | 2020-04-30 | Integrated large-diameter packer rubber cylinder assembly |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3061901A1 (en) * | 2015-02-27 | 2016-08-31 | Saltel Industries | Device for fracturing or re-fracturing a well and corresponding manufacturing method |
| CN109973049A (en) * | 2019-03-06 | 2019-07-05 | 王成军 | A kind of bridge plug for producing well |
| CN110130851A (en) * | 2019-06-22 | 2019-08-16 | 辽宁新华仪器有限公司 | A kind of anti-top tool of pressure break |
| CN209780835U (en) * | 2019-03-14 | 2019-12-13 | 河南福侨石油装备有限公司 | Slideway compression type packer |
| CN209942784U (en) * | 2019-05-31 | 2020-01-14 | 张景建 | Compression type directional well long rubber sleeve double-sealing packer with hydraulic control function |
-
2020
- 2020-04-30 CN CN202010360736.5A patent/CN111456676B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3061901A1 (en) * | 2015-02-27 | 2016-08-31 | Saltel Industries | Device for fracturing or re-fracturing a well and corresponding manufacturing method |
| CN109973049A (en) * | 2019-03-06 | 2019-07-05 | 王成军 | A kind of bridge plug for producing well |
| CN209780835U (en) * | 2019-03-14 | 2019-12-13 | 河南福侨石油装备有限公司 | Slideway compression type packer |
| CN209942784U (en) * | 2019-05-31 | 2020-01-14 | 张景建 | Compression type directional well long rubber sleeve double-sealing packer with hydraulic control function |
| CN110130851A (en) * | 2019-06-22 | 2019-08-16 | 辽宁新华仪器有限公司 | A kind of anti-top tool of pressure break |
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| Publication number | Publication date |
|---|---|
| CN111456676B (en) | 2021-01-01 |
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| TR01 | Transfer of patent right | ||
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Effective date of registration: 20210118 Address after: 163000 room 503, No.2 Kaiyuan street, Daqing economic and Technological Development Zone, Ranghulu District, Daqing City, Heilongjiang Province Patentee after: Daqing Naigu Petroleum Machinery Equipment Manufacturing Co.,Ltd. Address before: 163000 No.394, Fuxing animal husbandry community, Lamadian Town, Ranghulu District, Daqing City, Heilongjiang Province Patentee before: DAQING HAOYUN RUBBER PRODUCTS Co.,Ltd. |
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Effective date of registration: 20210413 Address after: 163000 Business Service Center A Business Service 2717, Olin International Apartment Business District G, Jeanhu Road District, Daqing City, Heilongjiang Province Patentee after: DAQING HONGBO SHENGDA PETROLEUM MACHINERY EQUIPMENT Co.,Ltd. Address before: 163000 room 503, No.2 Kaiyuan street, Daqing economic and Technological Development Zone, Ranghulu District, Daqing City, Heilongjiang Province Patentee before: Daqing Naigu Petroleum Machinery Equipment Manufacturing Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220629 Address after: 163000 No.394, Fuxing animal husbandry community, Lamadian Town, Ranghulu District, Daqing City, Heilongjiang Province Patentee after: DAQING HAOYUN RUBBER PRODUCTS Co.,Ltd. Address before: 163000 Business Service Center A Business Service 2717, Olin International Apartment Business District G, Jeanhu Road District, Daqing City, Heilongjiang Province Patentee before: DAQING HONGBO SHENGDA PETROLEUM MACHINERY EQUIPMENT Co.,Ltd. |