阅读说明：本技术 一种一体式简易井口平台 (Simple and easy well head platform of integral type ) 是由 蒙占彬 刘凯 王岩 杜东升 符妃 夏义江 高畅 王东镇 朱江茂 刘晗 冯志强 于 2021-10-12 设计创作，主要内容包括：本发明公开一种一体式简易井口平台,包括：第一甲板、第二甲板、隔水管和导向套管；所述第一甲板设置在所述第二甲板的上方,所述第一甲板与所述第二甲板互相平行设置,所述隔水管设置有若干个,若干所述隔水管的底部与海底固接,若干所述隔水管的顶部贯穿所述第二甲板后与所述第一甲板顶面连通,若干所述隔水管外侧设置有若干个所述导向套管,若干所述导向套管绕所述第二甲板中心周向阵列设置,且若干所述导向套管的底部与海底固接,第二甲板的顶面设置有若干的连接机构,若干连接机构设置在第二甲板顶面边缘位置,若干连接机构与若干导向套管位置一一对应,相邻隔水管之间设置有支撑机构,若干支撑机构将若干隔水管连接成一个整体。(The invention discloses an integrated simple wellhead platform, which comprises: the marine riser comprises a first deck, a second deck, a marine riser and a guide sleeve; the first deck is arranged above the second deck, the first deck and the second deck are arranged in parallel, the marine riser is provided with a plurality of marine risers, the bottoms of the marine risers are fixedly connected with the seabed, the tops of the marine risers penetrate through the second deck and then are communicated with the top surface of the first deck, a plurality of guide sleeves are arranged on the outer sides of the marine risers and circumferentially arrayed around the center of the second deck, the bottoms of the guide sleeves are fixedly connected with the seabed, the top surface of the second deck is provided with a plurality of connecting mechanisms, the connecting mechanisms are arranged at the edge position of the top surface of the second deck, the connecting mechanisms are in one-to-one correspondence with the positions of the guide sleeves, supporting mechanisms are arranged between adjacent marine risers, and the marine risers are connected into a whole through the supporting mechanisms.)

1. The utility model provides a simple and easy wellhead platform of integral type which characterized in that includes: the marine riser comprises a first deck (1), a second deck (2), a marine riser (3) and a guide sleeve (4);

the first deck (1) is arranged above the second deck (2), the first deck (1) and the second deck (2) are arranged in parallel, the marine risers (3) are provided with a plurality of marine risers (3), the bottoms of the marine risers (3) are fixedly connected with the seabed, the tops of the marine risers (3) penetrate through the second deck (2) and are communicated with the top surface of the first deck (1), the outer sides of the marine risers (3) are provided with a plurality of guide sleeves (4), the guide sleeves (4) are arranged around the center of the second deck (2) in a circumferential array manner, the bottoms of the guide sleeves (4) are fixedly connected with the seabed, the top surface of the second deck (2) is provided with a plurality of connecting mechanisms, the connecting mechanisms are arranged at the edge position of the top surface of the second deck (2), and the connecting mechanisms are in one-to-one correspondence with the positions of the guide sleeves (4), and a plurality of supporting mechanisms are arranged between the adjacent marine risers (3) and connect the marine risers (3) into a whole.

2. The integrated simple wellhead platform according to claim 1, characterized in that: the connecting mechanism comprises a steel cable winch (5), a steel cable (6), a fixing pile (7) and a lifting lug;

the steel cable winch (5) is fixedly connected to the top surface of the second deck (2), the bottom of the fixing pile (7) is arranged in the guide sleeve (4), the lifting lug is fixedly connected to the top of the fixing pile (7), one end of the steel cable (6) is fixedly connected to the lifting lug, and the other end of the steel cable (6) is fixedly connected to the steel cable winch (5).

3. The integrated simple wellhead platform according to claim 2, characterized in that: the lifting lug comprises a fixed seat (8), a connecting groove (9) and a connecting shaft (10);

fixing base (8) set up to semi-circular structure, fixing base (8) rigid coupling is in on the top outer wall of spud pile (7), spread groove (9) are seted up on the arcwall face of fixing base (8), just spread groove (9) are seted up for leading to the groove, the both ends of connecting axle (10) respectively with the double-phase to cell wall fixed connection of spread groove (9), cable wire (6) with connecting axle (10) rigid coupling.

4. The integrated simple wellhead platform according to claim 2, characterized in that: the top surface of the second deck (2) is provided with a communicating hole (11) at a position close to the steel cable winch (5), the steel cable (6) penetrates through the communicating hole (11), and the aperture of the communicating hole (11) is far larger than the cable diameter of the steel cable (6).

5. The integrated simple wellhead platform according to claim 1, characterized in that: the supporting mechanism comprises a cross rod (12) and an inclined rod (14);

the number of the cross rods (12) is multiple, the cross rods (12) are arranged in layers, two ends of each cross rod (12) on the same layer are fixedly connected with the outer walls of two adjacent marine risers (3), the cross rods (12) on the same layer are located on the same horizontal plane, and the inclined rods (14) are arranged between the cross rods (12) on the two adjacent layers; two inclined rods (14) are arranged between two cross rods (12) adjacent to each other in the vertical direction, one end of each inclined rod (14) is fixedly connected with the middle of the corresponding cross rod (12), and the connecting end of each marine riser (3) and the corresponding cross rod (12) is fixedly connected with the other end of each inclined rod (14).

6. The integrated simple wellhead platform according to claim 5, wherein: the plurality of cross rods (12) are fixedly connected with the marine riser (3) to form a cuboid structure, and a plurality of longitudinal rods (13) are respectively arranged on any two opposite side surfaces of the cuboid structure; the two cross rods (12) adjacent to each other in the vertical direction are respectively provided with one longitudinal rod (13), and two ends of each longitudinal rod (13) are fixedly connected with the middle parts of the two cross rods (12) adjacent to each other in the vertical direction.

7. The integrated simple wellhead platform according to claim 6, characterized in that: the cross rod (12), the longitudinal rod (13), the inclined rod (14) and the marine riser (3) are welded to form a truss structure.

8. The integrated simple wellhead platform according to claim 2, characterized in that: and the fixed pile (7) is in sliding connection with the inner wall of the guide sleeve (4).

Technical Field

The invention relates to the technical field of ocean engineering, in particular to an integrated simple wellhead platform.

Background

The well head platform has the problems of high investment, difficult cost reduction of well drilling and completion, poor development economic benefit, limited available peripheral resources, high capital sinking risk, narrow drilling range and the like in the newly built platform at present. For example, 1 simple 4-leg oil production platform needs about 4 million yuan of RMB, 1 simple 8-leg platform needs about 8.5 million yuan of RMB, 1 well drilling completion for development about 5000 million yuan of RMB, and the cost of the well drilling rice is reduced and enters the bottleneck area, and the conventional development and construction mode is adopted, so that economic benefits are not brought. It is necessary to develop a simple wellhead platform meeting the self-storage requirement under severe working conditions for offshore marginal oil fields, and explore a new development mode to reduce economic thresholds and release the yield of the marginal oil fields.

Disclosure of Invention

The invention aims to provide an integrated simple wellhead platform to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following scheme: the invention provides an integrated simple wellhead platform, which comprises: the marine riser comprises a first deck, a second deck, a marine riser and a guide sleeve;

the first deck is arranged above the second deck, the first deck and the second deck are arranged in parallel, the marine riser is provided with a plurality of marine risers, the bottoms of the marine risers are fixedly connected with the seabed, the tops of the marine risers penetrate through the second deck and then are communicated with the top surface of the first deck, a plurality of guide sleeves are arranged on the outer sides of the marine risers and are arranged in a circumferential array around the center of the second deck, the bottom of the guide sleeves is fixedly connected with the seabed, the top surface of the second deck is provided with a plurality of connecting mechanisms, the connecting mechanisms are arranged at the edge position of the top surface of the second deck, the connecting mechanisms are in one-to-one correspondence with the positions of the guide sleeves, a supporting mechanism is arranged between every two adjacent marine risers, and the supporting mechanisms connect the marine risers into a whole.

Preferably, the connecting mechanism comprises a steel cable winch, a steel cable, a fixing pile and a lifting lug;

the steel cable winch is fixedly connected to the top surface of the second deck, the bottom of the fixed pile is arranged in the guide sleeve, the lifting lug is fixedly connected to the top of the fixed pile, one end of the steel cable is fixedly connected with the lifting lug, and the other end of the steel cable is fixedly connected with the steel cable winch.

Preferably, the lifting lug comprises a fixed seat, a connecting groove and a connecting shaft;

the fixing seat is of a semicircular structure and fixedly connected to the outer wall of the top of the fixing pile, the connecting groove is formed in the arc-shaped face of the fixing seat and is a through groove, two ends of the connecting shaft are fixedly connected with two opposite groove walls of the connecting groove respectively, and the steel cable is fixedly connected with the connecting shaft.

Preferably, a communication hole is formed in the position, close to the steel cable winch, of the top surface of the second deck, the steel cable penetrates through the communication hole, and the aperture of the communication hole is far larger than the diameter of the steel cable.

Preferably, the supporting mechanism comprises a cross bar and a diagonal bar;

the number of the cross rods is multiple, the cross rods are arranged in layers, two ends of the cross rod on the same layer are fixedly connected with the outer walls of two adjacent marine risers respectively, the cross rods on the same layer are located on the same horizontal plane, and a plurality of the inclined rods are arranged between the two adjacent layers of the cross rods; two inclined rods are arranged between the two cross rods which are adjacent in the vertical direction, one end of each inclined rod is fixedly connected with the middle of each cross rod, and the connecting end of each marine riser and each cross rod is fixedly connected with the other end of each inclined rod.

Preferably, the plurality of cross rods are fixedly connected with the marine riser to form a cuboid structure, and a plurality of longitudinal rods are respectively arranged on any two opposite side surfaces of the cuboid structure; two adjacent transverse rods in the vertical direction are respectively provided with one longitudinal rod, and two ends of each longitudinal rod are respectively fixedly connected with the middle parts of the two adjacent transverse rods in the vertical direction.

Preferably, the cross rod, the longitudinal rod, the diagonal rod and the marine riser are welded to form a truss structure.

Preferably, the fixing pile is connected with the inner wall of the guide sleeve in a sliding mode.

The invention discloses the following technical effects: when the marine riser of setting can realize isolated sea water, leading-in drilling tool and sleeve pipe can be realized with first deck top surface intercommunication, and constitute mud endless passageway, it can also play supplementary stable effect to set up a plurality of marine risers, the second flitch of setting is used for bearing coupling mechanism, avoid setting up on first deck, occupy operating space, the second flitch of setting simultaneously can play the effect of connecting the marine riser, strengthen the monolithic connectivity of this platform, improve stability, alleviate ocean medium wave, unrestrained, the influence of flow to the marine riser, the coupling mechanism and a plurality of guide sleeve position one-to-one of setting, connect simultaneously, such setting can realize fixing the well head platform.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is an enlarged view of part A1 in example 1 of the present invention;

FIG. 3 is a schematic structural view of example 2 of the present invention;

FIG. 4 is an enlarged view of part A2 in example 2 of the present invention;

wherein, 1, a first deck; 2. a second deck; 3. a riser; 4. a guide sleeve; 5. a wire rope winch; 6. a steel cord; 7. fixing the pile; 8. a fixed seat; 9. connecting grooves; 10. a connecting shaft; 11. a communicating hole; 12. a cross bar; 13. a longitudinal bar; 14. a diagonal bar; 15. a limiting cylinder; 16. abutting against the housing; 17. a threaded barrel; 18. sealing the bearing; 19. a drive housing; 20. a drive motor; 21. a gear; 22. a connecting rod.

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.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example 1

Referring to fig. 1-2, the present invention provides an integrated simple wellhead platform, comprising: a first deck 1, a second deck 2, a riser 3 and a guide casing 4;

the first deck 1 is arranged above the second deck 2, the first deck 1 and the second deck 2 are arranged in parallel, the marine risers 3 are provided with a plurality of, the bottoms of the marine risers 3 are fixedly connected with the seabed, the tops of the marine risers 3 penetrate through the second deck 2 and then are communicated with the top surface of the first deck 1, a plurality of guide sleeves 4 are arranged on the outer sides of the marine risers 3, the guide sleeves 4 are arranged around the central circumferential array of the second deck 2, the bottoms of the guide sleeves 4 are fixedly connected with the seabed, the top surface of the second deck 2 is provided with a plurality of connecting mechanisms, the connecting mechanisms are arranged at the edge positions of the top surface of the second deck 2, the connecting mechanisms correspond to the positions of the guide sleeves 4 one by one, supporting mechanisms are arranged between the adjacent marine risers 3, and the marine risers 3 are connected into a whole through the supporting mechanisms.

When isolated sea water can be realized to the marine riser 3 of setting, leading-in drilling tool and sleeve pipe can be realized with 1 top surface intercommunication of first deck, and constitute mud endless passageway, it can also play supplementary stable effect to set up a plurality of marine risers 3, the second deck 2 of setting is used for bearing coupling mechanism, avoid setting up on first deck 1, occupy operating space, the effect of connecting marine riser 3 can be played to the second deck 2 of setting simultaneously, strengthen the monolithic connectivity of this platform, improve stability, alleviate ocean medium wave, unrestrained, the influence of stream to marine riser 3, the coupling mechanism and the 4 position one-to-one of a plurality of guide sleeve pipes of setting, connect simultaneously, such setting can realize fixing the well head platform.

According to a further optimized scheme, the connecting mechanism comprises a steel cable winch 5, a steel cable 6, a fixing pile 7 and a lifting lug;

the steel cable winch 5 is fixedly connected to the top surface of the second deck 2, the bottom of the fixed pile 7 is arranged in the guide sleeve 4, the lifting lug is fixedly connected to the top of the fixed pile 7, one end of the steel cable 6 is fixedly connected with the lifting lug, and the other end of the steel cable 6 is fixedly connected with the steel cable winch 5.

Installing a wire rope winch 5 on the second deck 2, the wire rope winch 5 can be arranged on both sides of the second deck 2 or more wire rope winches 5 can be arranged on the second deck 2; four or more guide sleeves 4 are arranged on the seabed; the fixed pile 7 is fixed on the seabed through the guide sleeve 4, and a lifting lug capable of fixing the steel cable 6 is arranged on the fixed pile 7; the steel cable 6 is connected with the steel cable winch 5 on the second deck 2 and the lifting lug on the seabed; the steel cable 6 is tensioned through the steel cable winch 5 of the second deck 2, so that the aim of fixing a wellhead platform is fulfilled; after the wellhead platform is fixed, oil extraction operation can be safely carried out.

In a further optimized scheme, the lifting lug comprises a fixed seat 8, a connecting groove 9 and a connecting shaft 10;

fixing base 8 sets up to semi-circular structure, and 8 rigid couplings of fixing base are on the top outer wall of spud pile 7, and spread groove 9 is seted up on the arcwall face of fixing base 8, and spread groove 9 sets up for logical groove, and the both ends of connecting axle 10 respectively with the double-phase relative cell wall fixed connection of spread groove 9, cable wire 6 and connecting axle 10 rigid coupling.

Spread groove 9 on the lug is seted up on the arcwall face of fixing base 8, and spread groove 9 sets up for leading to the groove, can avoid causing buckling of cable wire 6 when carrying out cable wire 6 and connecting, improves joint strength.

In a further optimized scheme, a communicating hole 11 is formed in the position, close to the steel cable winch 5, on the top surface of the second deck 2, the steel cable 6 penetrates through the communicating hole 11, and the aperture of the communicating hole 11 is far larger than the cable diameter of the steel cable 6.

The intercommunicating pore 11 can avoid the friction between the steel cable 6 and the second deck 2 when the steel cable is tensioned, thereby prolonging the service life of the steel cable 6 and simultaneously improving the stability and the safety of the wellhead platform.

In a further optimized scheme, the supporting mechanism comprises a cross rod 12 and an inclined rod 14;

the transverse rods 12 are arranged in a plurality of layers, the transverse rods 12 are arranged in layers, two ends of the transverse rod 12 positioned on the same layer are fixedly connected with the outer walls of the two adjacent marine risers 3 respectively, the transverse rods 12 positioned on the same layer are positioned on the same horizontal plane, and a plurality of inclined rods 14 are arranged between the two adjacent layers of transverse rods 12; two inclined rods 14 are arranged between two cross rods 12 adjacent in the vertical direction, one end of each inclined rod 14 is fixedly connected with the middle of each cross rod 12, and the connecting end of each marine riser 3 and each cross rod 12 is fixedly connected with the other end of each inclined rod 14.

According to the further optimized scheme, a plurality of transverse rods 12 are fixedly connected with the marine riser 3 to form a cuboid structure, and a plurality of longitudinal rods 13 are respectively arranged on any two opposite side faces of the cuboid structure; a longitudinal rod 13 is respectively arranged between two cross rods 12 adjacent to each other in the vertical direction, and two ends of the longitudinal rod 13 are respectively fixedly connected with the middle parts of the two cross rods 12 adjacent to each other in the vertical direction.

According to the further optimized scheme, the cross rods 12, the longitudinal rods 13, the inclined rods 14 and the marine riser 3 form a truss structure through welding.

The truss structure is formed by welding the cross rods 12, the longitudinal rods 13, the inclined rods 14 and the marine risers 3, each independent marine riser 3 can be connected into a whole, the wave resistance, wave resistance and flow resistance of the marine riser 3 in the sea are enhanced, the distance between each marine riser 3 can be increased, and the platform is stable.

In a further optimized scheme, the fixing pile 7 is in sliding connection with the inner wall of the guide sleeve 4.

Example 2

Referring to fig. 3-4, in order to realize that the first deck 1, the second deck 2, the supporting mechanism and the connecting mechanism in the above embodiment 1 can move up and down on the riser 3, a limiting mechanism for moving the supporting mechanism is provided in this embodiment, the limiting mechanism includes a plurality of limiting cylinders 15, the limiting cylinders 15 are respectively sleeved on the outer wall of the riser 3, the limiting cylinders 15 are slidably connected with the outer wall of the riser 3, the bottom of the riser 3 is sleeved with a butting shell 16, the top surface of the butting shell 16 is butted against the bottom surface of the limiting cylinder 15, the inner cavity of the butting shell 16 is opened into a cylindrical structure, the inner cavity of the butting shell 16 is provided with a threaded cylinder 17, the threaded cylinder 17 is connected with the outer wall of the riser 3 through a thread, a sealing bearing 18 is fixedly connected between the bottom of the threaded cylinder 17 and the bottom of the inner cavity of the butting shell 16, the outer wall of the butting shell 16 is fixedly connected with a driving shell 19, the outer wall of the top of the threaded cylinder 17 is provided with connecting teeth, the top of the inner cavity of the abutting shell 16 is provided with a connecting hole, the connecting hole is respectively communicated with the abutting shell 16 and the driving shell 19, the bottom surface of the inner cavity of the driving shell 19 is fixedly connected with a driving motor 20, an output shaft of the driving motor 20 is fixedly connected with a gear 21, the gear 21 is meshed with the connecting teeth, and a connecting rod 22 is fixedly connected between the adjacent driving shells 19.

The driving motor 20 that sets up drives gear 21 and rotates, screw thread section of thick bamboo 17 rather than intermeshing rotates along with it, screw thread section of thick bamboo 17 rotates through screw thread and marine riser 3, screw thread section of thick bamboo 17 that sets up reciprocates on marine riser 3, it reciprocates to drive butt casing 16, thereby make spacing section of thick bamboo 15 reciprocate, the first deck 1 of setting, the second deck 2, supporting mechanism and coupling mechanism all are connected with spacing section of thick bamboo 15, first deck 1 has been realized, the second deck 2, the whole displacement of supporting mechanism and coupling mechanism, the connecting rod 22 of setting plays spacing effect. The platform height is accurately adjusted through the arrangement, the operation requirements of different heights are met, the operation is simple and convenient, the lifting process is stable and safe, the platform can be repeatedly disassembled and assembled for use, and the platform has a wide application prospect.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.