CN111561292A - Compensation type passive packer for sea - Google Patents
Compensation type passive packer for sea Download PDFInfo
- Publication number
- CN111561292A CN111561292A CN202010579895.4A CN202010579895A CN111561292A CN 111561292 A CN111561292 A CN 111561292A CN 202010579895 A CN202010579895 A CN 202010579895A CN 111561292 A CN111561292 A CN 111561292A
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- ring
- sealing
- section
- sleeve
- sealing section
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- 238000007789 sealing Methods 0.000 claims abstract description 140
- 230000007704 transition Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 31
- 239000002002 slurry Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the technical field of undersea construction mechanical devices, and particularly relates to a compensation type passive packer for sea, which comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged in the outer sleeve, a centering sleeve is arranged between the inner sleeve and the outer sleeve, the upper end of the centering sleeve is provided with an inclined opening, a sealing ring is arranged below the centering sleeve, the sealing ring further comprises an expanding section, a vertical sealing section, a support ring, a transverse sealing section and a slope tongue ring, a first positioning ring is arranged between the sealing ring and the outer sleeve, the lower part of the sealing ring is provided with an inclined top ring, the lower side of the inclined top ring is provided with a main positioning ring, and a top screw rod is uniformly arranged on. According to the invention, the filled cement slurry in the gap between the inner sleeve and the outer sleeve of the sealing ring can not leak out through the flaring section, the support ring, the vertical sealing section, the transverse sealing section and the slope tongue ring of the sealing ring, and meanwhile, the reverse filling of seabed silt is effectively prevented, the sealing protection has excellent safety and stability, and the smooth and safe operation of the underwater grouting operation is ensured.
Description
Technical Field
The invention belongs to the technical field of mechanical devices, and particularly relates to a compensation type passive packer for sea.
Background
At present, after a jacket is built in shallow sea or river, slurry needs to be poured into the jacket so as to form a firm supporting object, and the method is an important engineering process measure in construction and construction in sea or river. The jacket consists of hollow legs and longitudinal cross rods connecting the legs, and may be lapped to fixed platform for offshore oil exploitation. Generally, jacket products include: the device comprises a sliding launching jacket, a floating towing jacket, a hoisting jacket and accessories, a buoyancy tank, a steel pile and a water-resisting casing. Is composed of hollow legs and longitudinal cross rods for connecting the legs. The fixed platform is lapped on the upper surface of the floating platform and is used for offshore oil exploitation. The jacket foundation is widely applied to the construction of offshore oil platforms and offshore lighthouses. In the field of offshore wind power plant foundation design, when the capacity of a single machine is large and the water depth is deep, a jacket foundation form is adopted. The steel pile of the jacket can be fixed on the seabed, the jacket is firstly prefabricated on land, then is hauled to the sea to be placed in position, then is driven along the conduit, and finally cement paste is poured into the gap between the pile and the conduit, so that the pile and the conduit are connected into a whole and fixed on the seabed. In the actual construction process, the pile and the guide pipe belong to insertion assembly of a larger cylindrical sleeve, and due to the influence of an underwater environment, a large amount of silt is inevitably poured back into the space between the guide pipe and the pile when the guide pipe is inserted after piling, and the silt can be mixed into cement paste injected later, so that the strength of the cement paste is reduced after being stabilized, and the local failure of cement connection is easily caused; in addition, when large-scale cylindrical metal sleeves are assembled, cement paste is injected into a gap between the guide pipe and the pile, the cement paste is easy to leak from the gap seal between the guide pipe and the pile, leakage and waste of the cement paste are caused, the cement is easy to dry to form honeycomb-shaped holes to cause reduction of structural strength, once the cement connection strength between the guide pipe and the pile is reduced, a platform device built on the platform device is easy to cause serious safety accidents, and the stability of the seal of the gap between the guide pipe and the pile before the cement paste is injected is a technical problem to be solved all the time after the operation is changed.
Disclosure of Invention
The invention provides a compensation type passive packer for sea, aiming at providing a very safe and stable seal in the construction of injecting cement slurry into a gap between an underwater guide pipe and a pile.
The invention provides a compensation type passive packer for the sea, which comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged inside the outer sleeve.
Furthermore, flaring section, perpendicular seal section, support ring, horizontal seal section and slope foot tongue circle are made integratively, and the flaring section is interior tapered mouth form, and the below of flaring section is provided with perpendicular seal section, is provided with bellied support ring on the outside circumference of perpendicular seal section, and the lower extreme of perpendicular seal section is provided with horizontal seal section, and the outer end of horizontal seal section is provided with slope foot tongue circle, and slope foot tongue circle is the tongue shape of taking the angle.
Furthermore, the first positioning ring is in a ring shape, and the first positioning ring is in bolted connection or welded connection with the inner wall of the outer sleeve.
Furthermore, the inner side cylindrical surface and the lower side end surface of the first positioning ring are respectively clung to the vertical sealing section and the transverse sealing section of the sealing ring.
Furthermore, the outer side of the inclined top ring is provided with a conical column transition surface, the conical column transition surface and the slope foot tongue ring of the sealing ring have the same gradient and are tightly attached to each other, the upper end of the inclined top ring is provided with a platform ring, the platform ring is arranged below the transverse sealing section, and the inner hole of the platform ring is larger than that of the transverse sealing section.
Further, the inner stop table and the main positioning ring are coaxial and are integrally manufactured.
Furthermore, a locking nut is arranged on the jackscrew rod, the jackscrew rod is in threaded connection with the main positioning ring, the distance between the inclined jacking ring and the main positioning ring is increased or reduced by the jackscrew rod, the inclined jacking ring clamps or loosens the sealing ring and the first positioning ring, and the jackscrew rod is locked by the locking nut.
Further, the main positioning ring is bolted or welded with the inner wall of the outer sleeve.
The working principle is as follows: when the inner sleeve 1 is inserted into the outer sleeve 2, the inner sleeve 1 is guided and centered through the centering sleeve 3, so that the error of concentricity of the inner sleeve 1 and the outer sleeve 2 is controlled within a certain size range, the inner sleeve 1 is conveniently inserted into the sealing ring 4, the sealing ring 4 can smoothly introduce the inner sleeve 1 through the gradient of the flaring section 41 on the upper part of the sealing ring 4, when the inner sleeve 1 is inserted into the sealing ring 4, the inner sleeve 1 can be expanded due to the pretightening force of the sealing ring 4, the flaring section 41 ensures that the inner sleeve 1 is smoothly inserted into the sealing ring 4, the inner sleeve 1 can be sealed through the vertical sealing section 42 of the sealing ring 4 after being inserted into the sealing ring 4, the pretightening force of the vertical sealing section 42 can be applied to the outer part of the inner sleeve 1 to form better sealing, and; when cement paste is poured between the inner sleeve and the outer sleeve, the sealing pretightening force of the sealing ring is compensated and enhanced by the cement paste through the vertical sealing section and the support ring, and a good sealing effect is formed when the cement paste is poured between the inner sleeve and the outer sleeve.
The invention has the beneficial effects that: according to the invention, the inner sleeve is guided in and centered when inserted into the outer sleeve through the inclined guiding opening of the centering sleeve, the inner sleeve can be inserted into the sealing ring through the flaring section of the sealing ring after being centered by the centering sleeve, and the sealing ring tightly clamps the sealing ring through the inclined top ring between the first positioning ring and the main positioning ring, so that the sealing ring can stably seal the inner sleeve and the outer sleeve. The flaring section of the sealing ring is convenient for the introduction of the inner sleeve and the insertion of the inner sleeve into the vertical sealing section, so that the outer wall of the inner sleeve is ensured to be tightly attached to the vertical sealing section to form good sealing, the supporting ring on the outer ring of the vertical sealing section can enhance the pretightening force of rubber, and the sealing safety of the outer wall of the inner sleeve and the vertical sealing section is enhanced; meanwhile, the transverse sealing section and the slope tongue ring can be compressed through the inclined top ring, so that the sealing ring and the inner wall of the outer sleeve form stable sealing connection, when the gap between the inner sleeve and the outer sleeve is filled with cement slurry, pressure generated by the cement slurry can be compensated through the first positioning ring and the support ring of the sealing ring, so that leakage of the cement slurry is effectively prevented when the cement slurry is filled, and the cement slurry cannot leak. This device simple structure, the sealed effect of grouting operation is outstanding under the sea, and stability is splendid, has guaranteed going on of the stability of construction under the sea, and economic benefits is huge, and the safety and stability of sealed effect is very showing.
Drawings
FIG. 1 is a schematic main sectional view of the present invention;
FIG. 2 is a partially enlarged schematic view of the present invention at B;
FIG. 3 is a schematic view of the seal ring of FIG. 2 of the present invention;
FIG. 4 is a schematic view of the pitched top ring of FIG. 2 of the present invention;
FIG. 5 is a schematic view of the main positioning loop of FIG. 2 of the present invention;
FIG. 6 is a schematic top view of the present invention;
in the figure: the device comprises an inner sleeve 1, an outer sleeve 2, a centering sleeve 3, a 31-leading bevel opening, a 4-sealing ring, a 41-flaring section, a 42-vertical sealing section, a 43-supporting ring, a 44-horizontal sealing section, a 45-slope-foot tongue ring, a 5-first positioning ring, a 6-oblique top ring, a 61-smooth sliding table, a 62-conical-column transition surface, a 63-platform ring, a 7-main positioning ring, a 71-inner-stopping table, an 8-top screw rod and a 81-locking nut.
Detailed Description
The invention will be further explained below with reference to the accompanying drawings:
referring to fig. 1, 2, 3, 4, 5 and 6, the invention discloses a compensating passive packer for sea, which comprises an inner sleeve 1 and an outer sleeve 2, wherein the inner sleeve 1 and the outer sleeve 2 can be large clearance fit of piles and ducts, the inner sleeve 1 can be arranged inside the outer sleeve 2, the inner sleeve straightening device is structurally characterized in that a straightening sleeve 3 can be arranged between an inner sleeve 1 and an outer sleeve 2, the upper end of the straightening sleeve 3 can be provided with a slant guiding opening 31, the slant guiding opening 31 and the straightening sleeve 3 are machined integrally, the outer circle of the straightening sleeve 3 is in bolted connection or welded connection with the inner wall of the outer sleeve 2, the inner hole of the straightening sleeve 3 is larger than the outer circle of the inner sleeve 1, the inner sleeve 1 can be guided through the slant guiding opening 31 when the inner sleeve 1 is inserted into the outer sleeve 2, the inner sleeve 1 is straightened through the straightening sleeve 3, and the inner sleeve 1 is guaranteed to be controlled within a certain range through the centralizing of the straightening sleeve 3 and the concentricity of the outer sleeve 2. The lower part of the righting sleeve 3 can be provided with a sealing ring 4, the sealing ring 4 is made of rubber material, the sealing ring 4 can further comprise an opening expanding section 41, a vertical sealing section 42, a supporting ring 43, a horizontal sealing section 44 and a slope tongue ring 45, the opening expanding section 41, the vertical sealing section 42, the supporting ring 43, the horizontal sealing section 44 and the slope tongue ring 45 can be integrally made, the opening expanding section 41 can be in an inner cone shape, the vertical sealing section 42 can be arranged below the opening expanding section 41, the outer side circumference of the vertical sealing section 42 can be provided with a raised supporting ring 43, the lower end of the vertical sealing section 42 can be provided with the horizontal sealing section 44, the outer end of the horizontal sealing section 44 can be provided with the slope tongue ring 45, and the slope tongue ring 45 can be in a tongue ring shape with an angle. A first positioning ring 5 can be arranged between the sealing ring 4 and the outer sleeve 2, the first positioning ring 5 is made of metal materials through turning, the first positioning ring 5 can be in a ring shape, the first positioning ring 5 can be in bolted connection or welded connection with the inner wall of the outer sleeve 2, and the inner side cylindrical surface and the lower side end surface of the first positioning ring 5 can be respectively clung to a vertical sealing section 42 and a transverse sealing section 44 of the sealing ring 4. The lower part of sealing washer 4 can be equipped with oblique top circle 6, oblique top circle 6 is the cyclic annular circle of metal making, oblique top circle 6 inboard can process light slip table 61, the outside of oblique top circle 6 can process out awl post transition surface 62, awl post transition surface 62 can be the same with the slope foot tongue circle 45's of sealing washer 4 slope, awl post transition surface 62 can hug closely mutually with slope foot tongue circle 45 and be in the same place, the upper end of oblique top circle 6 can be provided with platform circle 63, the below of violently sealing section 44 can be arranged in to platform circle 63, the hole of platform circle 63 can be greater than the hole of violently sealing section 44. The lower side of the inclined top ring 6 can be provided with a main positioning ring 7, the upper end of the main positioning ring 7 can be provided with an inner stop table 71, the inner stop table 71 and the main positioning ring 7 are integrally turned and then polished, the inner stop table 71 can be coaxial with the main positioning ring 7, the main positioning ring 7 can be arranged in the outer sleeve 2 and is bolted or welded with the inner wall of the outer sleeve 2, the light sliding table 61 of the inclined top ring 6 can be in sliding fit with the inner stop table 71 of the main positioning ring 7, the main positioning ring 7 can be uniformly provided with top screw rods 8, the top screw rods 8 can be in threaded connection with the main positioning ring 7, the top screw rods 8 can increase or decrease the distance between the inclined top ring 6 and the main positioning ring 7, the inclined top ring 6 can be tightly pressed between the sealing ring 4 and the first positioning ring 5 through the top screw rod 8, a locking nut 81 can be arranged on the top screw rod 8, and the top screw rod 8 can be locked on the main positioning ring 7 through the locking nut 81.
Example 1
The righting sleeve 3, the first positioning ring 5 and the main positioning ring 7 are respectively welded or bolted with the inner wall of the outer sleeve 2 from top to bottom, the size of the inner hole of the first positioning ring 5 is larger than that of the inner hole of the main positioning ring 7, and the sizes of the inner holes of the main positioning ring 7 are slightly larger than or equal to that of the inner hole of the righting sleeve 3. The sealing ring 4 and the inclined top ring 6 are sequentially placed between the first positioning ring 5 and the main positioning ring 7, a plurality of top screw rods 8 are uniformly distributed on the circumference of the main positioning ring 7, and the top screw rods 8 are screwed in to push the inclined top ring 6 to move upwards so that the sealing ring 4 is tightly pressed on the first positioning ring 5 and the outer sleeve 2. The smooth platform 61 of the inclined top ring 6 is in sliding fit with the inner stop platform 71 of the main positioning ring 7, so that the inclined top ring 6 can be uniformly pressed against the sealing ring 4 after being jacked up by the jacking screw rod 8, the slope tongue ring 45 of the sealing ring 4 tightly presses against the inner wall of the outer sleeve 2 through the conical column transition surface 62 of the inclined top ring 6, and the platform ring 63 of the inclined top ring 6 can tightly press the transverse sealing section 44 of the sealing ring 4 tightly against the lower end surface of the first positioning ring 5. After the inclined top ring 6 compresses the sealing ring 4, the top screw rod 8 and the main positioning ring 7 can be locked through the locking nut 81. When the inner sleeve 1 is inserted into the outer sleeve 2, after being guided and centered by the centering sleeve 3, the inner sleeve 1 can be introduced through the flared section 41 which is flared outwards by the sealing ring 4, so that the inner sleeve 1 is smoothly inserted into the vertical sealing section 42 of the sealing ring 4, and the support ring 43 outside the vertical sealing section 42 can enable the vertical sealing section 42 to be in close contact connection with the outer circle of the inner sleeve 1, thereby ensuring that good sealing is formed between the sealing ring 4 and the inner sleeve 1.
Example 2
The righting sleeve 3, the sealing ring 4, the first positioning ring 5, the inclined top ring 6, the main positioning ring 7 and the top screw rod 8 are all installed on the outer sleeve 2 and connected as described in embodiment 1, the outer sleeve 2 is driven into the pile during the seabed pile driving operation, the inner sleeve 1 is hoisted by a tugboat and inserted into the outer sleeve 2, cement slurry can be filled between the inner sleeve 1 and the outer sleeve 2 after the inner sleeve 1 is inserted into the sealing ring 4, the cement slurry enters the generated grouting pressure, and the vertical sealing section 42 can be tightly sealed with the inner sleeve 1 through the support ring 43 of the sealing ring 4 and the first positioning ring 5, so that the cement slurry in the grouting operation cannot leak out of the sealing ring 4, and the driving volume can be easily measured in the driving process of the cement slurry; meanwhile, in the process of grouting cement paste, the main positioning ring 7 and the inclined top ring 6 can firmly clamp the sealing ring 4, so that the sealing ring is effectively prevented from losing effectiveness due to backward pouring of seabed sediment, and stable and smooth operation of cement grouting is guaranteed.
Example 3
In the large-scale base work progress of wind-powered electricity generation trade, this kind of comparatively large-scale seat is the bottom also can use this kind of sealing device when adopting the formula of beating thick stake if necessary, the construction is inserted after being convenient for the pile between inner skleeve 1 and the outer sleeve 2, sealed effect is stable, smooth and easy construction of inner skleeve 1 being convenient for is put into, the damage sealing member of colliding with has been avoided, the sealed effect of passive type packing on the inner skleeve 1 is splendid, sealing washer 4 compresses tightly gradually when meetting grout pressure increase and makes sealed more compactlyer, the quick construction of grout operation has been guaranteed.
According to the invention, when the inner sleeve 1 is inserted into the outer sleeve 2 through the inclined guiding opening 31 of the centering sleeve 3, the inner sleeve 1 is guided in and centered, after being centered by the centering sleeve 3, the inner sleeve 1 can be inserted into the sealing ring 4 through the flaring section 41 of the sealing ring 4, the sealing ring 4 tightly clamps the sealing ring 4 through the inclined top ring 6 between the first positioning ring 5 and the main positioning ring 7, and the sealing ring 4 can be ensured to stably seal the inner sleeve 1 and the outer sleeve 2. The flared section 41 of the sealing ring 4 is convenient for the introduction of the inner sleeve 1 and the insertion of the inner sleeve 1 into the vertical sealing section 42, so that the outer wall of the inner sleeve 1 is tightly attached to the vertical sealing section 42 to form good sealing, and the support ring 43 on the outer ring of the vertical sealing section 42 can enhance the pretightening force of rubber and enhance the sealing safety of the outer wall of the inner sleeve 1 and the vertical sealing section 42; simultaneously, horizontal seal section 44 and slope foot tongue circle 45 can compress tightly through oblique top ring 6, make the inner wall of sealing washer 4 and outer sleeve 2 form very stable sealing connection, when filling cement thick liquid in the gap department between inner skleeve 1 and the outer sleeve 2, the pressure that the cement thick liquid produced can carry out external force compensation through the support ring 43 of first position circle 5 and sealing washer 4, prevent revealing of cement thick liquid between inner skleeve 1 and the sealing washer 4 when making the filling cement thick liquid, guarantee that cement thick liquid can not spill. In addition, the main positioning ring 7 and the inclined top ring 6 reversely compress the sealing ring 4, so that the sealing ring 4 can be more effectively compensated and compressed with the outer sleeve 2 through the inclined top ring 6 under the reverse flow pressure of the seabed, the reverse filling of seabed silt is prevented, the reverse invasion of the silt between the inner sleeve 1 and the outer sleeve 2 during grouting operation is prevented, the sealing protection safety is excellent, the stability is excellent, and the smooth and safe operation of the underwater grouting operation is ensured. This device simple structure, the sealed effect of grouting operation is outstanding under the sea, and stability is splendid, has guaranteed going on of the stability of construction under the sea, and economic benefits is huge, and the safety and stability of sealed effect is very showing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A passive packer of compensation formula for marine, includes inner skleeve and outer sleeve, and the inner skleeve is arranged in the inside of outer sleeve, its characterized in that: the upper end of the centering sleeve is provided with an inclined guide opening, a sealing ring is arranged below the centering sleeve, the sealing ring further comprises an opening expanding section, a vertical sealing section, a support ring, a transverse sealing section and a slope foot tongue ring, a first positioning ring is arranged between the sealing ring and the outer sleeve, the lower portion of the sealing ring is provided with an inclined top ring, the inner side of the inclined top ring is provided with a light sliding table, the lower side of the inclined top ring is provided with a main positioning ring, the upper end of the main positioning ring is provided with an inner stop table, the light sliding table of the inclined top ring is in sliding fit with the inner stop table of the main positioning ring, and the main positioning ring is uniformly provided with a top screw rod.
2. The compensated passive packer for offshore use of claim 1, wherein: the flaring section, the vertical sealing section, the support ring, the transverse sealing section and the slope tongue ring are integrally manufactured, the flaring section is in an inner conical slope shape, the vertical sealing section is arranged below the flaring section, the raised support ring is arranged on the circumference of the outer side of the vertical sealing section, the transverse sealing section is arranged at the lower end of the vertical sealing section, the slope tongue ring is arranged at the outer end of the transverse sealing section, and the slope tongue ring is in a tongue ring shape with an angle.
3. The compensated passive packer for offshore use of claim 1, wherein: the first positioning ring is in a ring shape and is in bolted connection or welded connection with the inner wall of the outer sleeve.
4. The compensated passive packer for offshore use of claim 1, wherein: the inner side cylindrical surface and the lower side end surface of the first positioning ring are respectively clung to the vertical sealing section and the transverse sealing section of the sealing ring.
5. The compensated passive packer for offshore use of claim 1, wherein: the outer side of the inclined top ring is provided with a conical column transition surface, the conical column transition surface and the slope foot tongue ring of the sealing ring have the same gradient and are tightly attached to each other, the upper end of the inclined top ring is provided with a platform ring, the platform ring is arranged below the transverse sealing section, and the inner hole of the platform ring is larger than that of the transverse sealing section.
6. The compensated passive packer for offshore use of claim 1, wherein: the inner stop platform and the main positioning ring are coaxial and are integrally manufactured.
7. The compensated passive packer for offshore use of claim 1, wherein: the top screw rod is provided with a locking nut, the top screw rod is in threaded connection with the main positioning ring, the distance between the inclined top ring and the main positioning ring is increased or reduced by the top screw rod, the inclined top ring clamps or loosens the sealing ring and the first positioning ring, and the top screw rod is locked by the locking nut.
8. The compensated passive packer for offshore use of claim 1, wherein: the main positioning ring is bolted or welded with the inner wall of the outer sleeve.
9. The compensated passive packer for offshore use of claim 1, wherein: the sealing ring is characterized in that the sum of sealing pretightening force generated by the flaring section and the vertical sealing section and pressure of grouting material outside the sealing ring is greater than the maximum grouting pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579895.4A CN111561292B (en) | 2020-06-23 | 2020-06-23 | Compensation type passive packer for sea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579895.4A CN111561292B (en) | 2020-06-23 | 2020-06-23 | Compensation type passive packer for sea |
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| Publication Number | Publication Date |
|---|---|
| CN111561292A true CN111561292A (en) | 2020-08-21 |
| CN111561292B CN111561292B (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010579895.4A Active CN111561292B (en) | 2020-06-23 | 2020-06-23 | Compensation type passive packer for sea |
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| CN (1) | CN111561292B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897967A (en) * | 2021-11-19 | 2022-01-07 | 江苏科技大学 | Packer device for grouting of jacket pile leg and installation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120125619A1 (en) * | 2009-05-27 | 2012-05-24 | Peter Wood | Active external casing packer (ecp) for frac operations in oil and gas wells |
| CN102644325A (en) * | 2012-03-31 | 2012-08-22 | 中国海洋石油总公司 | Grouting connection node for deepwater floating type platform steel structures |
| US20170241095A1 (en) * | 2014-08-04 | 2017-08-24 | James Lee | Passive Grout Seal |
| CN212296297U (en) * | 2020-06-23 | 2021-01-05 | 辽宁孚泰化工机械有限公司 | Compensation type passive packer for sea |
-
2020
- 2020-06-23 CN CN202010579895.4A patent/CN111561292B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120125619A1 (en) * | 2009-05-27 | 2012-05-24 | Peter Wood | Active external casing packer (ecp) for frac operations in oil and gas wells |
| CN102644325A (en) * | 2012-03-31 | 2012-08-22 | 中国海洋石油总公司 | Grouting connection node for deepwater floating type platform steel structures |
| US20170241095A1 (en) * | 2014-08-04 | 2017-08-24 | James Lee | Passive Grout Seal |
| CN212296297U (en) * | 2020-06-23 | 2021-01-05 | 辽宁孚泰化工机械有限公司 | Compensation type passive packer for sea |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897967A (en) * | 2021-11-19 | 2022-01-07 | 江苏科技大学 | Packer device for grouting of jacket pile leg and installation method thereof |
| CN113897967B (en) * | 2021-11-19 | 2022-07-19 | 江苏科技大学 | Packer device for grouting of jacket pile leg and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111561292B (en) | 2024-08-09 |
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