Hoisting system for underwater drilling basal disc
A drilling template, hoisting technology, applied in the direction of earthwork drilling, transportation and packaging, load hanging components, etc., can solve the difficult to control the balance and stability of the underwater drilling template position, azimuth adjustment, positioning difficulties, etc. problem, to achieve the effect of easy positioning, ensuring stability and convenient control
Active Publication Date: 2012-04-25
CHINA NAT OFFSHORE OIL CORP +1
View PDF2 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is that it is difficult to control the balance and stability of the underwater drilling template in the hoisting process of the existing underwater drilling template, and it is difficult to adjust the position and orientation in the water, and the positioning is difficult. Provide a safe and easy underwater drilling template hoisting system for azimuth adjustment and positioning operations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] Figure 2 to Figure 14 A preferred embodiment of the invention is shown.
[0034] see figure 2 , image 3 As shown, in this embodiment, the four corners of the underwater drilling template 100 are provided with four lifting lugs 120, and a ferrule device 130 is provided at the center of gravity, which is not the real center of gravity of the underwater drilling template 100. The center of gravity is the position where the vertical line of the underwater drilling template 100 intersects with the upper part of the frame 110 when the underwater drilling template 100 is in a horizontal state. This position can be determined by calculation when designing and manufacturing the underwater drilling template 100 . Such as image 3 , Figure 4 , Figure 5 As shown, the lower end of the ferrule device 130 is fixed at the center of gravity of the disc frame 110, and a circular counterbore 133 is provided on the upper end surface, and two J-shaped grooves 131 are provided on t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a hoisting system for an underwater drilling template, which aims to solve the problems that the equilibrium and the stability of the prior underwater drilling template are hard to control in hoisting operations and the azimuth adjustment and positioning are difficult to perform under water and so on. The hoisting system for the underwater drilling template comprises the hoisted underwater drilling template and a hoisting device, wherein a template frame of the underwater drilling template is fixedly provided with a plurality of lifting lugs, and the center of gravityposition of the underwater drilling template is provided with a cutting sleeve device; the hoisting device comprises a plurality of wire ropes, a hoisting short connecter and a rigid connecting rod, wherein the upper end of the hoisting short connecter is provided with screw threads, the lateral surface is provided with a plurality of lifting lugs; one end of the wire rope is connected with one lifting lug on the underwater drilling template through a shackle, while the other end is connected with one lifting lug on the hoisting short connecter; and the lower end of the hoisting short connecter is in rigid connection with the upper end of the rigid connecting rod, while the lower end of the rigid connecting rod is in compression joint with the cutting sleeve device. The hoisting system for the underwater drilling template has the characteristics that the hoisting is safe and convenient to prevent inclination, the positioning for the underwater hoisting operations is simple and convenient and the like.
Description
technical field [0001] The invention relates to an underwater drilling template hoisting system. Background technique [0002] The underwater drilling template is a kind of equipment used in offshore oil drilling operations, which is placed at the wellhead of the seabed. The underwater drilling templates with porous holes generally have 2×2 specifications, 2×3 specifications, 3×3 specifications, 3×4 specifications, etc. The weight of the 2×2 underwater drilling templates exceeds 30 tons, and the 3×4 The weight of the underwater drilling template will reach more than 60 tons. Lifting tools must be used for the underwater drilling template to be hoisted and transported from the construction site to the drilling platform, and to go down to the seabed. In the past, only one lifting lug was welded on the four corners of the underwater drilling template, and the hoisting tools used only included steel wire ropes. When hoisting, four steel wire ropes were used to connect to the l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B41/08B66C1/12B66C13/04
Inventor 唐海雄林宗辉罗俊丰韦红术齐美胜
Owner CHINA NAT OFFSHORE OIL CORP