CN217328772U - Simple three-leg jacket suitable for hundred-meter water depth - Google Patents
Simple three-leg jacket suitable for hundred-meter water depth Download PDFInfo
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- CN217328772U CN217328772U CN202220895441.2U CN202220895441U CN217328772U CN 217328772 U CN217328772 U CN 217328772U CN 202220895441 U CN202220895441 U CN 202220895441U CN 217328772 U CN217328772 U CN 217328772U
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Abstract
The utility model relates to a simple and easy jacket of three legs suitable for hectometer depth of water, its superstructure that adopts the cross-section to be compact, superstructure are located wave and high velocity of flow ocean current effect region, can effectively reduce the wave current force that the jacket receives to through the substructure of transition structure transition to big cross-section, so that provide enough big chassis size in order to guarantee the platform stability and reduce the pile foundation atress, can adapt to the hectometer depth of water and open sea area adverse circumstances condition. And simultaneously, the utility model discloses compare conventional four legs jacket structure and can show and reduce the steel volume, and can save two skirt piles, both can save the steel volume for the skirt pile and can save marine pile time limit for a project, can effectively reduce jacket and pile foundation engineering investment, reduce the economic effective development of engineering investment and the deep water border oil gas field in the helping hand china.
Description
Technical Field
The utility model relates to a jacket especially relates to a simple and easy jacket of three legs suitable for hectometer depth of water belongs to ocean engineering and oil gas development technical field.
Background
In the middle and deep sea areas with water depth of hundreds of meters in the east sea and the south sea of China, a large number of marginal oil and gas fields are to be developed. However, such marginal field reserves are small in scale and cannot be developed by conventional means.
At present, in the development platform of oil and gas fields with hundred meters of water depth in China, jacket structures are all four legs or more than four legs, and the investment of the jacket occupies a large proportion in the engineering investment of small oil and gas fields. Therefore, the three-leg simple jacket structure suitable for the development of the oil and gas field in the hundred-meter water depth is developed by breaking through the conventional four-leg jacket structure, the engineering investment can be effectively reduced, and the three-leg simple jacket structure has important significance for assisting the economic and effective development of the oil and gas field in the middle and deep water boundary in China.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model aims at providing a simple and easy jacket of three legs suitable for hectometer depth of water to reduce jacket main leg quantity, make jacket structure simplification, reduce the environmental force that the jacket structure receives and then reduce pile foundation quantity, can effectively reduce jacket and pile foundation and use the steel volume, reduce the economy of engineering investment and the middle and deep water border oil gas field of helping hand china and effectively develop.
In order to achieve the purpose, the utility model adopts the following technical proposal: a three-leg simple jacket suitable for a hundred-meter water depth comprises an upper structure, a lower structure and a transition structure; wherein the superstructure comprises an upper first main leg, an upper second main leg, an upper third main leg, an upper main facade frame, an upper side facade frame and an upper horizontal frame; the upper first main leg, the upper second main leg and the upper third main leg are arranged in an equilateral triangle shape, the upper first main leg and the upper second main leg are connected through the upper main vertical face frame, the upper third main leg and the upper first main leg and the upper second main leg are connected through the upper side vertical face frame, and the upper first main leg, the upper second main leg and the upper third main leg are connected through three upper horizontal frames which are arranged from top to bottom at intervals; the lower structure comprises a lower first main leg, a lower second main leg, a lower third main leg, a lower main vertical face frame, a lower side vertical face frame, a lower first horizontal frame, a lower second horizontal frame and a lower third horizontal frame; the lower first main leg, the lower second main leg and the lower third main leg are also arranged in an equilateral triangle, the lower first main leg and the lower second main leg are positioned on the same vertical plane with the upper first main leg and the upper second main leg, and the cross-sectional area of the lower structure is larger than that of the upper structure; the lower first main leg is connected with the lower second main leg through the lower main vertical face frame, the lower third main leg is connected with the lower first main leg and the upper second main leg through the lower side vertical face frame, and the lower first main leg, the lower second main leg, the lower third main leg and the lower main vertical face frame are connected through the lower first horizontal frame, the lower second horizontal frame and the lower third horizontal frame which are arranged from top to bottom at intervals; the transition structure comprises a '>' shaped transition support, a diagonal transition support and a transition inclined support, and the upper first main leg and the lower first main leg are connected through the '>' shaped transition support and the upper second main leg and the lower second main leg respectively; the upper third main leg is connected with the lower first main leg and the lower second main leg through the diagonal transition support respectively; the upper third main leg and the lower third main leg are connected through the ">" shaped transition support and the transition inclined support, and the ">" shaped transition support and the transition inclined support are connected end to end.
The three-legged simple jacket preferably includes two upper diagonal supports and an upper X-shaped support connected end to end, the upper diagonal supports being disposed between the intersections of two adjacent upper horizontal frames and the upper first and second main legs, the upper X-shaped support being disposed between the intersections of the lowermost upper horizontal frame and the lower first horizontal frame and the upper first and second main legs, the lower ends of the upper first and second main legs passing through the lower first horizontal frame.
The three-legged simple jacket, preferably, the lower main facade frame includes two lower "X" shaped supports disposed between the intersection of the lower first and second horizontal frames with the lower first and second main legs and the intersection of the lower second and third horizontal frames with the lower first and second main legs.
The three-legged simple jacket preferably includes two upper diagonal braces connected end-to-end, the upper diagonal braces being disposed between adjacent upper horizontal braces and the intersection of the upper third main leg and the upper first main leg or the upper second main leg.
The three-legged simple jacket, preferably, the lower side elevation frame includes two lower "X" shaped supports disposed between the intersection of the lower first and second horizontal frames with the lower third and first or second lower main legs and the intersection of the lower second and third horizontal frames with the lower third and first or second lower main legs.
The three-leg simple jacket preferably comprises an upper horizontal frame, a lower horizontal frame and a plurality of vertical horizontal rods, wherein the upper horizontal frame comprises a main horizontal rod connected among three upper main legs, a longitudinal wellhead support, a transverse wellhead support and a wellhead guide, and the wellhead guide is used for providing horizontal constraint for a riser; two shipping support short sections which are parallel to each other are arranged on the outer sides of the upper first main leg and the upper second main leg, and the shipping support short sections are perpendicular to the main horizontal rod piece which is connected with the upper first main leg and the upper second main leg in the plane.
The three-leg simple jacket preferably comprises a main horizontal rod connected among the three lower main legs, a longitudinal wellhead support, a wellhead guide, a shipping support short joint, a shipping support and an upper main leg horizontal reinforcing support; the main horizontal rod piece between the lower first main leg and the lower second main leg is divided into three sections by the upper first main leg and the upper second main leg; two parallel shipping support short sections are arranged on the outer sides of the upper first main leg and the upper second main leg, two parallel shipping supports are arranged on the inner sides of the upper first main leg and the upper second main leg, the shipping support short sections and the shipping supports which are positioned on the inner side and the outer side of the upper first main leg or the upper second main leg are collinear and are vertical to the main horizontal rod piece between the lower first main leg and the lower second main leg in the plane, and the other ends of the two shipping supports are connected with the main horizontal rod piece between the lower first main leg and the lower third main leg or the main horizontal rod piece between the lower second main leg and the lower third main leg; one end of the upper main leg horizontal reinforcing support is connected with the intersection point of the shipping support and the main horizontal rod piece, and the other end of the upper main leg horizontal reinforcing support is connected with the upper third main leg and used for providing horizontal support constraint for the upper third main leg.
The three-leg simple jacket preferably comprises a main horizontal rod connected among the three lower main legs, a longitudinal wellhead support, a wellhead guide, a shipping support and a horizontal layer reinforcing rod; the shipping support passes through the main horizontal rod piece between the lower first main leg and the lower second main leg and divides the main horizontal rod piece into three sections; the horizontal layer reinforcing rod pieces are respectively connected with the two shipping supports and the intersection points of the main horizontal rod pieces between the first main leg and the third main leg of the lower part or the main horizontal rod pieces between the second main leg and the third main leg of the lower part, and are used for providing in-plane rigidity for the second horizontal frame of the lower part.
The three-leg simple jacket preferably comprises a main horizontal rod connected among the three lower main legs, a longitudinal wellhead support, a shipping support and a horizontal layer reinforcing rod, and the lower third horizontal frame is positioned at the mud surface.
The three-leg simple jacket preferably further comprises six skirt pile sleeves, and every two skirt pile sleeves are connected with the lower first main leg, the lower second main leg and the lower third main leg respectively in one group.
The utility model discloses owing to take above technical scheme, it has following advantage:
1. the utility model provides a simple and easy jacket of three legs adopts the compact superstructure in cross-section, and superstructure is located wave and high velocity of flow ocean current effect area, can effectively reduce the wave current force that the jacket receives to through the substructure of transition structure transition to big cross-section, so that provide enough big chassis size in order to guarantee the platform stability and reduce the pile foundation atress, can adapt to the hundred meters depth of water and open wide sea area adverse circumstances condition.
2. The utility model discloses a three-legged jacket structure compares conventional four-legged jacket structure and can show and reduce the steel volume of using, and can save two skirt piles, both can save the steel volume of using for the skirt pile and can save marine pile construction period, can effectively reduce jacket and pile foundation engineering investment, reduces the economic effective development of engineering investment and the deep water border oil gas field in the helping hand china.
Drawings
Fig. 1 is a schematic view of an overall structure of a three-leg simple jacket according to an embodiment of the present invention;
fig. 2 is a schematic view of a main vertical frame of a three-leg simple jacket according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an upper side elevation frame according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a lower side elevation frame according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a transition structure according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an upper horizontal frame according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a lower first horizontal frame according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a lower second horizontal frame according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a lower third horizontal frame according to an embodiment of the present invention;
fig. 10 is a schematic layout view of a jacket chassis according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements and are not intended to imply a special meaning unless otherwise stated and are not intended to be limiting or imply relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "assembled", "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a simple and easy jacket of three legs suitable for hectometer depth of water, its superstructure that adopts the cross-section to be compact, superstructure are located wave and high velocity of flow ocean current effect region, can effectively reduce the wave current force that the jacket receives to through the substructure of transition structure transition to big cross-section, so that provide enough big chassis size in order to guarantee the platform stability and reduce the pile foundation atress, can adapt to the hectometer depth of water and open sea area adverse circumstances condition. And simultaneously, the utility model discloses compare conventional four legs jacket structure and can show and reduce the steel volume, and can save two skirt piles, both can save skirt pile steel volume and can save marine pile time limit for a project, can effectively reduce jacket and pile foundation engineering investment, reduce the economic effective development of engineering investment and the deep water border oil gas field in the helping hand china.
The following describes in detail a three-legged simple jacket according to an embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 5, the utility model provides a simple three-legged jacket suitable for hectometer water depth, which comprises an upper structure 1, a lower structure 2 and a transition structure 3.
The upper structure 1 comprises an upper first main leg 4, an upper second main leg 5, an upper third main leg 6, an upper main vertical face frame 7, an upper side vertical face frame 8 and an upper horizontal frame 9, wherein the upper first main leg 4, the upper second main leg 5 and the upper third main leg 6 are arranged in an equilateral triangle shape, the upper first main leg 4 is connected with the upper second main leg 5 through the upper main vertical face frame 7, the upper third main leg 6 is connected with the upper first main leg 4 and the upper second main leg 5 through the upper side vertical face frame 8, and the upper first main leg 4, the upper second main leg 5 and the upper third main leg 6 are connected through the three upper horizontal frames 9 arranged from top to bottom at intervals.
The substructure 2 comprises a lower first main leg 10, a lower second main leg 11, a lower third main leg 12, a lower main facade frame 13, a lower side facade frame 14, a lower first horizontal frame 15, a lower second horizontal frame 16 and a lower third horizontal frame 17. The lower first main leg 10, the lower second main leg 11 and the lower third main leg 12 are also arranged in an equilateral triangle, the lower first main leg 10 and the lower second main leg 11 are located on the same vertical plane as the upper first main leg 4 and the upper second main leg 5, and the cross-sectional area of the lower structure 2 is larger than that of the upper structure 1. The lower first main leg 10 is connected with the lower second main leg 11 through a lower main vertical surface frame 13, the lower third main leg 12 is connected with the lower first main leg 10 and the upper second main leg 11 through a lower side vertical surface frame 14, and the lower first main leg 10, the lower second main leg 11, the lower third main leg 12 and the lower main vertical surface frame 13 are connected through a lower first horizontal frame 15, a lower second horizontal frame 16 and a lower third horizontal frame 17 which are arranged from top to bottom at intervals.
As shown in fig. 2 and 5, the transition structure 3 comprises a ">" shaped transition support 22, a diagonal transition support 23 and a transition diagonal support 24, and the upper first main leg 4 and the lower first main leg 10 and the upper second main leg 5 and the lower second main leg 11 are connected through the ">" shaped transition support 22 respectively; the upper third main leg 6 is connected with the lower first main leg 10 and the lower second main leg 11 through a diagonal transition support 23; the upper third main leg 6 is connected with the lower third main leg 12 by a ">" shaped transition support 22 and a transition diagonal support 24, and the ">" shaped transition support 22 and the transition diagonal support 24 are connected end to end.
In the above embodiment, preferably, as shown in fig. 2, the upper main facade frame 7 comprises two upper diagonal supports 19 and an upper "X" shaped support 20 connected end to end, the upper diagonal supports 19 being arranged between the intersections of the adjacent two upper horizontal frames 9 and the upper first and second main legs 4, 5, the upper "X" shaped support 20 being arranged between the intersections of the lowermost upper horizontal frame 9 and the lower first horizontal frame 15 and the upper first and second main legs 4, 5, the lower ends of the upper first and second main legs 4, 5 passing through the lower first horizontal frame 15.
The lower main facade frame 13 comprises two lower "X" shaped supports 21, the lower "X" shaped supports 21 being arranged between the intersection of the lower first 15 and second 16 horizontal frames with the lower first 10 and second 11 main legs and the intersection of the lower second 16 and third 17 horizontal frames with the lower first 10 and second 11 main legs.
In the above embodiment, preferably, as shown in fig. 3, the upper side elevational frame 8 includes two upper diagonal supports 19 connected end to end, the upper diagonal supports 19 being provided between the adjacent two upper horizontal frames 9 and the intersection of the upper third main leg 6 and the upper first main leg 4 (or the upper second main leg 5).
As shown in fig. 4, the lower side elevational frame 14 includes two lower "X" shaped supports 21, the lower "X" shaped supports 21 being disposed between the intersection of the lower first and second horizontal frames 15 and 16 and the lower third and first main legs 12 and 10 (or the lower second main leg 11) and the intersection of the lower second and third horizontal frames 16 and 17 and the lower third and first main legs 12 and 10 (or the lower second main leg 11).
In the above embodiment, preferably, as shown in fig. 6, the upper horizontal frame 9 comprises a main horizontal bar 25 connected between the three upper main legs, a longitudinal wellhead support 26, a transverse wellhead support 27 and a wellhead guide 28, the wellhead guide 28 being used to provide horizontal restraint for the riser 29. Two shipping support nipples 30 which are parallel to each other are arranged on the outer sides of the upper first main leg 4 and the upper second main leg 5, and the shipping support nipples 30 are perpendicular to a main horizontal rod 25 which connects the upper first main leg 4 and the upper second main leg 5 in the plane, so that vertical support is provided for horizontal construction, shipping and towing of the jacket.
In the above embodiment, preferably, as shown in fig. 7, the lower first horizontal frame 15 comprises a main horizontal rod member 25 connected between three lower main legs, a longitudinal wellhead support 26, a wellhead guide 28, a shipping support sub 30, a shipping support 31 and an upper main leg horizontal reinforcing support 32. The main horizontal bar 25 between the lower first main leg 10 and the lower second main leg 11 is divided into three sections by the upper first main leg 4 and the upper second main leg 5. Two parallel shipping support nipples 30 are arranged on the outer sides of the upper first main leg 4 and the upper second main leg 5, two parallel shipping supports 31 are arranged on the inner sides of the upper first main leg 4 and the upper second main leg 5, the shipping support nipples 30 and the shipping supports 31 on the inner side and the outer side of the upper first main leg 4 or the upper second main leg 5 are collinear, and are perpendicular to the main horizontal rod 25 between the lower first main leg 10 and the lower second main leg 11 in the plane, and the other ends of the two shipping supports 31 are connected with the main horizontal rod 25 between the lower first main leg 10 and the lower third main leg 12 or the main horizontal rod 25 between the lower second main leg 11 and the lower third main leg 12. One end of the upper main leg horizontal stiffening strut 32 is connected to the intersection of the loading support 31 and the main horizontal bar 25 and the other end of the upper main leg horizontal stiffening strut 32 is connected to the upper third main leg 6 for providing horizontal support restraint for the upper third main leg 6. Therefore, the shipping support 31 can provide vertical support for the horizontal construction, shipping and towing stages of the jacket on one hand, and can also provide horizontal rigidity for the jacket in place on the other hand. Meanwhile, the longitudinal wellhead support 26 can provide support for part of the wellhead guide 28 on one hand, and can also increase the compressive rigidity of the construction and installation stages for two shipping supports 31 on the other hand.
In the above embodiment, preferably, as shown in fig. 8, the lower second horizontal frame 16 includes main horizontal bars 25 connected between the three lower main legs, longitudinal wellhead supports 26, wellhead guides 28, shipping supports 31, and horizontal layer reinforcement bars 33. The loading support 31 passes through the main horizontal bar 25 between the lower first main leg 10 and the lower second main leg 11 and is divided into three sections. The horizontal layer reinforcing bars 33 connect the intersection of the two shipping supports 31 with the main horizontal bar 25 between the lower first main leg 10 and the lower third main leg 12 or the main horizontal bar 25 between the lower second main leg 11 and the lower third main leg 12, respectively, for providing in-plane stiffness to the lower second horizontal frame 16.
In the above embodiment, preferably, as shown in fig. 9, the lower third horizontal frame 17 includes the main horizontal bar 25 connected between the three lower main legs, the longitudinal wellhead support 26, the loading support 31, and the horizontal layer reinforcing bar 33. The lower third horizontal frame 17 is located at the mud level, close to the lower second horizontal frame 16, with the difference that no wellhead guide 28 needs to be provided and the seabed soil provides restraint for the riser.
In the above embodiment, preferably, as shown in fig. 10, the three-leg simple jacket further includes six skirt pile sleeves 18, and each two skirt pile sleeves 18 are connected to the lower first main leg 10, the lower second main leg 11, and the lower third main leg 12 in a set. The lower first main leg 10, the lower second main leg 11 and the lower third main leg 12 are arranged in an equilateral triangle in plan view in order to force the individual skirts evenly.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A three-leg simple jacket suitable for a hundred-meter water depth is characterized by comprising an upper structure, a lower structure and a transition structure;
wherein the superstructure comprises an upper first main leg, an upper second main leg, an upper third main leg, an upper main facade frame, an upper side facade frame and an upper horizontal frame; the upper first main leg, the upper second main leg and the upper third main leg are arranged in an equilateral triangle, the upper first main leg and the upper second main leg are connected through the upper main vertical surface frame, the upper third main leg is connected with the upper first main leg and the upper second main leg through the upper side vertical surface frame, and the upper first main leg, the upper second main leg and the upper third main leg are connected through three upper horizontal frames which are arranged from top to bottom at intervals;
the lower structure comprises a lower first main leg, a lower second main leg, a lower third main leg, a lower main vertical face frame, a lower side vertical face frame, a lower first horizontal frame, a lower second horizontal frame and a lower third horizontal frame; the lower first main leg, the lower second main leg and the lower third main leg are also arranged in an equilateral triangle, the lower first main leg and the lower second main leg are positioned on the same vertical plane with the upper first main leg and the upper second main leg, and the cross-sectional area of the lower structure is larger than that of the upper structure; the lower first main leg is connected with the lower second main leg through the lower main vertical face frame, the lower third main leg is connected with the lower first main leg and the upper second main leg through the lower side vertical face frame, and the lower first main leg, the lower second main leg, the lower third main leg and the lower main vertical face frame are connected through the lower first horizontal frame, the lower second horizontal frame and the lower third horizontal frame which are arranged from top to bottom at intervals;
the transition structure comprises a '>' shaped transition support, a diagonal transition support and a transition inclined support, and the upper first main leg and the lower first main leg are connected through the '>' shaped transition support and the upper second main leg and the lower second main leg respectively; the upper third main leg is connected with the lower first main leg and the lower second main leg through the diagonal transition support respectively; the upper third main leg and the lower third main leg are connected through the ">" shaped transition support and the transition inclined support, and the ">" shaped transition support and the transition inclined support are connected end to end.
2. The three-legged simple jacket according to claim 1, wherein said upper main facade frame includes two upper diagonal supports and an upper "X" shaped support connected end to end, said upper diagonal supports being disposed between the intersection of adjacent upper horizontal frames with said upper first main leg and upper second main leg, said upper "X" shaped support being disposed between the intersection of the lowermost upper horizontal frame and lower first horizontal frame with said upper first main leg and upper second main leg, the lower ends of said upper first main leg and upper second main leg passing through said lower first horizontal frame.
3. The three-legged simple jacket according to claim 1, wherein the lower main facade frame includes two lower "X" shaped supports disposed between the intersection of the lower first and second horizontal frames with the lower first and second main legs and the intersection of the lower second and third horizontal frames with the lower first and second main legs.
4. The three-legged simple jacket according to claim 1, wherein said upper side facade frame includes two upper diagonal supports connected end-to-end, said upper diagonal supports being disposed between adjacent ones of said upper horizontal frames and an intersection of said upper third main leg and either the upper first main leg or the upper second main leg.
5. The three-legged simple jacket according to claim 1, wherein the lower side elevation frame includes two lower "X" shaped supports disposed between the intersection of the lower first and second horizontal frames with the lower third and first or second lower main legs and the intersection of the lower second and third horizontal frames with the lower third and first or second lower main legs.
6. The three-legged simple jacket according to claim 1, wherein the upper horizontal frame comprises main horizontal bars connected between the three upper main legs, longitudinal wellhead supports, lateral wellhead supports, and wellhead guides for providing horizontal restraint to the riser; two shipping support short sections which are parallel to each other are arranged on the outer sides of the upper first main leg and the upper second main leg, and the shipping support short sections are perpendicular to the main horizontal rod piece which is connected with the upper first main leg and the upper second main leg in the plane.
7. The three-legged simple jacket according to claim 1, wherein the lower first horizontal frame comprises a main horizontal rod connected between three lower main legs, a longitudinal wellhead support, a wellhead guide, a shipping support sub, a shipping support and an upper main leg horizontal stiffening support; the main horizontal rod piece between the lower first main leg and the lower second main leg is divided into three sections by the upper first main leg and the upper second main leg; two parallel shipping support short sections are arranged on the outer sides of the upper first main leg and the upper second main leg, two parallel shipping supports are arranged on the inner sides of the upper first main leg and the upper second main leg, the shipping support short sections and the shipping supports which are positioned on the inner side and the outer side of the upper first main leg or the upper second main leg are collinear and are vertical to the main horizontal rod piece between the lower first main leg and the lower second main leg in the plane, and the other ends of the two shipping supports are connected with the main horizontal rod piece between the lower first main leg and the lower third main leg or the main horizontal rod piece between the lower second main leg and the lower third main leg; one end of the upper main leg horizontal reinforcing support is connected with the intersection point of the shipping support and the main horizontal rod piece, and the other end of the upper main leg horizontal reinforcing support is connected with the upper third main leg and used for providing horizontal support constraint for the upper third main leg.
8. The three-legged simple jacket according to claim 1, wherein the lower second horizontal frame comprises main horizontal bars connected between the three lower main legs, longitudinal wellhead supports, wellhead guides, shipping supports and horizontal layer reinforcement bars; the shipping support penetrates through the main horizontal rod piece between the lower first main leg and the lower second main leg and divides the main horizontal rod piece into three sections; the horizontal layer reinforcing rod pieces are respectively connected with the two shipping supports and the intersection points of the main horizontal rod pieces between the first main leg and the third main leg of the lower part or the main horizontal rod pieces between the second main leg and the third main leg of the lower part, and are used for providing in-plane rigidity for the second horizontal frame of the lower part.
9. The three-legged simple jacket according to claim 1, wherein the lower third horizontal frame comprises main horizontal bars connected between the three lower main legs, longitudinal wellhead supports, loading supports and horizontal layer reinforcement bars, the lower third horizontal frame being located at the mud level.
10. The three-legged simple jacket according to claim 1, further comprising six skirt pile sleeves, two of said skirt pile sleeves in each set being connected to said lower first main leg, lower second main leg and lower third main leg, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220895441.2U CN217328772U (en) | 2022-04-18 | 2022-04-18 | Simple three-leg jacket suitable for hundred-meter water depth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220895441.2U CN217328772U (en) | 2022-04-18 | 2022-04-18 | Simple three-leg jacket suitable for hundred-meter water depth |
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| Publication Number | Publication Date |
|---|---|
| CN217328772U true CN217328772U (en) | 2022-08-30 |
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| CN202220895441.2U Active CN217328772U (en) | 2022-04-18 | 2022-04-18 | Simple three-leg jacket suitable for hundred-meter water depth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737548A (en) * | 2022-04-18 | 2022-07-12 | 中海石油(中国)有限公司 | Three-leg simple wellhead platform suitable for hundred-meter water depth |
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2022
- 2022-04-18 CN CN202220895441.2U patent/CN217328772U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737548A (en) * | 2022-04-18 | 2022-07-12 | 中海石油(中国)有限公司 | Three-leg simple wellhead platform suitable for hundred-meter water depth |
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