An underwater Christmas tree running device

Abstract

The application discloses an underwater Christmas tree moving device. The device comprises a first moving track fixed on a main deck, first rack-shaped track teeth arranged on the outer side edges of the upper end surface of the first moving track, a moving trolley arranged on the upper end surface of the first moving track, the moving trolley being used for supporting the Christmas tree, and a first sliding device arranged on the upper edge and the lower edge of the moving trolley respectively, the first sliding device being used for driving the moving trolley to move along the axis of the first moving track. The first sliding device can drive the moving trolley to move along the axis of the first moving track.

Description

Technical Field

[0001] This invention relates to the field of underwater wellhead transportation technology, and particularly to an underwater wellhead transport device. Background Technology

[0002] In recent years, as domestic offshore oil exploration has gradually expanded into deep-sea areas, directly using conventional semi-submersible drilling platforms to lower submersible production trees has become commonplace. Conventional semi-submersible drilling platform cranes typically lack the capability to directly lift submersible production trees between the main deck side and the platform's moon pool entrance. Therefore, a suitable method is needed to move submersible production trees between the main deck side and the moon pool entrance of conventional semi-submersible drilling platforms; currently, there is no suitable method or device. Summary of the Invention

[0003] The purpose of this invention is to provide an underwater oil well transport device, which has a first sliding device on the transport trolley, the first sliding device being able to drive the transport trolley to move axially along a first transport track.

[0004] The purpose of this invention is to provide an underwater oil well transport device, which is provided with a second transport track orthogonally arranged to the left end of the first transport track, and a second sliding device is provided on the transport trolley, which can drive the transport trolley to move axially along the second transport track.

[0005] To achieve the above objectives, the present invention adopts the following technical solution, including:

[0006] The first transport track is fixed on the main deck, and the outer edge of the upper end face of the first transport track is evenly provided with first toothed track grooves.

[0007] A transfer trolley is disposed on the upper surface of the first transfer track; the transfer trolley is used to support the wellhead; and

[0008] The first sliding device is respectively arranged in the same direction on the upper edge and the lower edge of the transport trolley, and is used to drive the transport trolley to move along the axial direction of the first transport track;

[0009] The first sliding device includes:

[0010] The first hydraulic cylinder is located at the upper or lower edge of the transport trolley and directly above the tooth groove of the first rack-shaped track.

[0011] The first sliding groove is coaxially arranged with the first liquid cylinder and located on one side of the free end of the piston rod of the first liquid cylinder;

[0012] The first slider is axially movable in the first sliding groove and is hinged to the free end of the piston rod of the first hydraulic cylinder. A through first strip hole is provided on the first slider.

[0013] The upper end of the first pin is hinged to the middle of the first slider via the first pivot, and the lower end of the first pin passes through the first strip hole and is inserted between the tooth grooves of the first rack-shaped track.

[0014] A pair of first stop pin holes are respectively disposed on both sides of the first rotating shaft;

[0015] A first stop pin, which can be selectively inserted into a first stop pin socket, is used to limit the first pin.

[0016] Preferably, it also includes:

[0017] The second transport track is fixed on the main deck and orthogonally arranged at the left end of the first transport track. Second rack-shaped track grooves are evenly distributed on the outer edge of the second transport track.

[0018] The second sliding device is respectively arranged in the same direction on the left and right edges of the transport trolley, and is used to drive the transport trolley to move along the axial direction of the second transport track;

[0019] The second sliding device includes:

[0020] The second hydraulic cylinder is located on the left or right edge of the transport trolley and directly above the tooth groove of the second rack-shaped track.

[0021] The second sliding groove is coaxially arranged with the second hydraulic cylinder and located on one side of the free end of the piston rod of the second hydraulic cylinder;

[0022] The second slider is axially movable in the second sliding groove and is hinged to the free end of the piston rod of the second hydraulic cylinder. A through second strip hole is provided on the second slider.

[0023] The upper end of the second pin is hinged to the middle of the second slider via the second pivot, and the lower end of the second pin passes through the second strip hole and is inserted between the teeth of the second rack-shaped track.

[0024] A pair of second stop pin holes are respectively provided on both sides of the second rotating shaft;

[0025] A second stop pin, which can be selectively inserted into a second stop pin socket, is used to limit the second pin.

[0026] Preferably, both the first and second transport tracks are composed of parallel steel rails, which are I-beam structures; the transport trolley has a U-shaped frame structure, the width of the transport trolley is adapted to the first transport track, and the length of the transport trolley is adapted to the second transport track.

[0027] Preferably, limiting posts are provided at the four corners of the inner edge of the lower end face of the transport trolley, and the limiting posts are tangent to the inner edge of the rail.

[0028] Preferably, it also includes:

[0029] Support plates, respectively disposed on the inner and outer edges of the transport trolley, are used to abut against the lower end face of the oil well tree to prevent the first and second sliding devices from being subjected to force during transport.

[0030] Preferably, it also includes:

[0031] An obstacle clearance groove is provided at the intersection of the first and second transport tracks to allow the limiting post to pass through.

[0032] Preferably, it also includes:

[0033] The load-bearing support columns are respectively set at the four corners of the upper end face of the transport trolley, and are used to cooperate with the guide piles of the oil well tree to fix the oil well tree.

[0034] The beneficial effects of the present invention are as follows: a first sliding device is provided on the transport trolley, which can drive the transport trolley to move axially along the first transport track; a second transport track is provided, which is orthogonal to the left end of the first transport track; a second sliding device is provided on the transport trolley, which can drive the transport trolley to move axially along the second transport track. Attached Figure Description

[0035] Figure 1 This is a perspective view of an underwater oil well transport device according to the present invention.

[0036] Figure 2 This is a top view of an underwater oil well transport device according to the present invention.

[0037] Figure 3 for Figure 2 AA sectional view.

[0038] Figure 4 for Figure 2 BB cross-sectional view.

[0039] Figure 5 The three-dimensional shape of the transport trolley in this invention Figure 1 .

[0040] Figure 6 The three-dimensional shape of the transport trolley in this invention Figure 2 .

[0041] Figure 7 This is a perspective view of the first and second transport tracks in this invention. Detailed Implementation

[0042] The invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0043] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0044] like Figure 1-7 As shown, an underwater production tree transport device 1 of the present invention includes:

[0045] The first transport track 110 is fixed on the main deck, and first rack-shaped track grooves 111 are evenly distributed on the outer edge of the upper surface of the first transport track 110. As a preferred embodiment, the first transport track 110 is composed of parallel steel rails 112, and the steel rails 112 are I-beam structures.

[0046] A transport trolley 120 is disposed on the upper surface of the first transport track 110; the transport trolley 120 is used to support the Christmas tree. Preferably, the transport trolley 120 has a U-shaped frame structure, and the width of the transport trolley 120 is adapted to the width of the first transport track 110. Further preferably, it also includes: load-bearing support columns 123 respectively disposed at the four corners of the upper surface of the transport trolley 120, used to cooperate with the Christmas tree guide piles to fix the Christmas tree.

[0047] First sliding devices 130 are respectively arranged in the same direction on the upper and lower edges of the transport trolley 120, for driving the transport trolley to move axially along the first transport track 110. The first sliding device 130 includes: a first hydraulic cylinder 131 disposed on the upper or lower edge of the transport trolley 120 and located directly above the toothed groove 111 of the first rack-shaped track; a first sliding groove 132, coaxially arranged with the first hydraulic cylinder 131 and located on one side of the free end of the piston rod of the first hydraulic cylinder 131; and a first slider 133 axially movably disposed within the first sliding groove 131 and hinged to the free end of the piston rod of the first hydraulic cylinder 131. The first strip hole 133a is provided on the 3; the upper end of the first pin 134 is hinged to the middle of the first slider 133 through the first rotating shaft 134a, and the lower end of the first pin 134 passes through the first strip hole 133a and is inserted between the tooth grooves 111 of the first rack-shaped track; a pair of first stop pin holes 135 are respectively provided on both sides of the first rotating shaft 134a; the first stop pin 136 can be selectively inserted into the first stop pin hole 135 to limit the first pin 134.

[0048] During use, such as Figure 2 As shown, when the transport trolley 120 moves from the left end of the first transport track 110 to the right, the first stop pin 136 is inserted into the first stop pin insertion hole 135 on the side of the forward direction (i.e., the right side). The first hydraulic cylinder 131 retracts, causing the first slider 133 to slide to the near end of the first sliding groove 132. When the first pin 134 moves to the right as a whole, it rotates to the left and finally falls into the tooth groove 111 of the first rack-shaped track on the right side under the action of gravity. The first hydraulic cylinder 131 extends to the left to push the first slider 133. Since the first stop pin 136 is located to the right of the first pin 134, the first stop pin 136 cannot rotate to the right. At this time, the first slider 133 is blocked from moving to the left and pushes the trolley to move to the right in the opposite direction. The first hydraulic cylinder 131 repeatedly retracts and extends until the transport trolley 120 reaches the right end of the first transport track 110. When it is necessary to move to the left, the first stop pin 136 needs to be replaced in the first stop pin insertion hole 135 on the side of the forward direction (i.e., the left side). The first hydraulic cylinder 131 extends again, pushing the first slider 133 to the far end of the first sliding groove 132. The first hydraulic cylinder 131 retracts again. Since the first stop pin 136 is located to the left of the first insertion pin 134, the first stop pin 136 cannot rotate to the left. At this time, the first slider 133 is blocked from moving to the right, and the trolley is pulled to the left in the opposite direction until the trolley 120 reaches the right end of the first transport track 110.

[0049] In another embodiment, the system further includes: a second transport track 140 fixed on the main deck and orthogonally disposed at the left end of the first transport track 110, with second rack-shaped track grooves 141 evenly distributed on the outer edge of the second transport track 140; and a second sliding device 150 disposed in the same direction on the left and right edges of the transport trolley 120, for driving the transport trolley 120 to move axially along the second transport track 140; wherein the second sliding device 150 includes: a second hydraulic cylinder 151 disposed on the left or right edge of the transport trolley 120 and located directly above the second rack-shaped track grooves 141; and a second sliding groove 152 coaxially disposed with the second hydraulic cylinder 151 and located on one side of the free end of the piston rod of the second hydraulic cylinder 151.

[0050] The second slider 153 is axially movably disposed within the second sliding groove 152 and hinged to the free end of the piston rod of the second hydraulic cylinder 151. A through second strip-shaped hole 153a is provided on the second slider 153. A second pin 154, the upper end of which is hinged to the middle of the second slider 153 via a second rotating shaft 154a, and the lower end of the second pin 154 passes through the second strip-shaped hole 153a and is inserted between the tooth grooves 141 of the second rack-shaped track. A pair of second stop pin holes 155 are respectively disposed on both sides of the second rotating shaft 154a. A second stop pin 156 is selectively inserted into the second stop pin hole 155 to limit the second pin 154.

[0051] In another embodiment, both the first transport track 110 and the second transport track 140 are composed of parallel steel rails 112 and 142, which are I-beam structures; the transport trolley 120 has a U-shaped frame structure, the width of the transport trolley 120 is adapted to the first transport track 110, and the length of the transport trolley 120 is adapted to the second transport track 140.

[0052] In another embodiment, limiting posts 121 are provided at the four corners of the inner edge of the lower end face of the transport trolley 120, and the limiting posts 121 are tangent to the inner edges of the rails 112 and 142.

[0053] In another embodiment, a support plate 122 is further included, which is respectively disposed on the inner edge and the outer edge of the transport trolley 120, for abutting against the lower end face of the tree, to prevent the first sliding device 130 and the second sliding device 150 from being subjected to force during transport.

[0054] In another embodiment, it further includes: clearance groove 113 and clearance groove 143, which are disposed at the intersection of the first transport track 110 and the second transport track 140 for the limit post to pass through.

[0055] In another embodiment, it also includes: load-bearing support columns 123, which are respectively disposed at the four corners of the upper end face of the transport trolley, for use in conjunction with the guide piles of the wellhead to fix the wellhead.

[0056] In summary, the present invention provides an underwater production tree transport device 1, which has a first sliding device on the transport trolley, the first sliding device being able to move the transport trolley axially along a first transport track; a second transport track is provided orthogonally to the left end of the first transport track, and a second sliding device is provided on the transport trolley, the second sliding device being able to move the transport trolley axially along the second transport track.

[0057] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A subsea oil wellhead transport device, characterized in that... include: The first transport track is fixed on the main deck, and the outer edge of the upper end face of the first transport track is evenly provided with first toothed track grooves. A transfer trolley is disposed on the upper surface of the first transfer track; the transfer trolley is used to support the wellhead; and The first sliding device is respectively arranged in the same direction on the upper edge and the lower edge of the transport trolley, and is used to drive the transport trolley to move along the axial direction of the first transport track; The first sliding device includes: The first hydraulic cylinder is located at the upper or lower edge of the transport trolley and directly above the tooth groove of the first rack-shaped track. The first sliding groove is coaxially arranged with the first liquid cylinder and located on one side of the free end of the piston rod of the first liquid cylinder; The first slider is axially movable in the first sliding groove and is hinged to the free end of the piston rod of the first hydraulic cylinder. A through first strip hole is provided on the first slider. The upper end of the first pin is hinged to the middle of the first slider via the first pivot, and the lower end of the first pin passes through the first strip hole and is inserted between the tooth grooves of the first rack-shaped track. A pair of first stop pin holes are respectively disposed on both sides of the first rotating shaft; A first stop pin, which can be selectively inserted into a first stop pin socket, is used to limit the first pin; The second transport track is fixed on the main deck and orthogonally arranged at the left end of the first transport track. Second rack-shaped track grooves are evenly distributed on the outer edge of the second transport track. The second sliding device is respectively arranged in the same direction on the left and right edges of the transport trolley, and is used to drive the transport trolley to move along the axial direction of the second transport track; The second sliding device includes: The second hydraulic cylinder is located on the left or right edge of the transport trolley and directly above the tooth groove of the second rack-shaped track. The second sliding groove is coaxially arranged with the second hydraulic cylinder and located on one side of the free end of the piston rod of the second hydraulic cylinder; The second slider is axially movable in the second sliding groove and is hinged to the free end of the piston rod of the second hydraulic cylinder. A through second strip hole is provided on the second slider. The upper end of the second pin is hinged to the middle of the second slider via the second pivot, and the lower end of the second pin passes through the second strip hole and is inserted between the teeth of the second rack-shaped track. A pair of second stop pin holes are respectively provided on both sides of the second rotating shaft; A second stop pin, which can be selectively inserted into a second stop pin socket, is used to limit the second pin.

2. The underwater wellhead transport device according to claim 1, characterized in that: Both the first and second transport tracks are composed of parallel steel rails, which are I-beam structures; the transport trolley has a U-shaped frame structure, the width of the transport trolley is adapted to the first transport track, and the length of the transport trolley is adapted to the second transport track.

3. The underwater wellhead transport device according to claim 2, characterized in that: Limiting posts are provided at the four corners of the inner edge of the lower end face of the transport trolley, and the limiting posts are tangent to the inner edge of the rail.

4. The underwater wellhead transport device according to claim 3, characterized in that, Also includes: Support plates, respectively disposed on the inner and outer edges of the transport trolley, are used to abut against the lower end face of the oil well tree to prevent the first and second sliding devices from being subjected to force during transport.

5. The underwater wellhead transport device according to claim 3, characterized in that, Also includes: An obstacle clearance groove is provided at the intersection of the first and second transport tracks to allow the limiting post to pass through.

6. The underwater wellhead transport device according to claim 1 or 2, characterized in that, Also includes: The load-bearing support columns are respectively set at the four corners of the upper end face of the transport trolley, and are used to cooperate with the guide piles of the oil well tree to fix the oil well tree.

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