CN218911432U

CN218911432U - Underwater grouting system for deepwater jacket

Info

Publication number: CN218911432U
Application number: CN202222495161.5U
Authority: CN
Inventors: 宋峥嵘; 赵佳宁; 黄怀州; 袁玉杰; 刘钊; 张大伟; 穆瑞喜; 史睿; 阮胜福; 胡永明
Original assignee: Offshore Oil Engineering Co Ltd
Current assignee: Offshore Oil Engineering Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-04-25
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses an underwater grouting system for a deep water jacket, which comprises a grouting pipeline, a grouting ring, a grouting hose and a grouting station, wherein the grouting hose is used for communicating the grouting station with a grouting machine on a transport ship, one end of the grouting pipeline is communicated with an outlet of the grouting station, the other end of the grouting hose is communicated with a jacket skirt sleeve through the grouting ring, and when in grouting, slurry enters the grouting hose from the grouting machine of the transport ship on water and then enters the grouting station, and then enters the jacket skirt sleeve through the grouting pipeline and the grouting ring.

Description

Underwater grouting system for deepwater jacket

Technical Field

The utility model relates to the field of water jacket grouting, in particular to an underwater grouting system for a deep water jacket.

Background

It is generally considered that in the field of offshore oil development, a fixed jacket structure is the most economical development form within 500 meters of water depth. The jacket structure is fixed with steel piles driven into the seabed through high-strength slurry. The form of the deep water jacket steel pile and skirt pile sleeve connected by mud is most commonly used, so the design of the grouting system is important for the deep water jacket.

Conventional jacket grouting systems typically place the grout joint receiving end above the water surface with the grout line extending along the outside of the conduit legs to the grout outlet.

The design scheme of the deep water jacket grouting system has the following major defects: the first longer grouting pipeline increases the environmental load borne by the jacket structure, so that the jacket structure is reinforced, and great steel waste is caused; the design, construction and installation of the second grouting pipeline is huge; after the grouting of the third jacket is finished, the steel grouting pipeline needs to be cut, the risk of the diving operation construction is high, and the cooperation cost of ships is high; the fourth grouting line occupies a large amount of space and is very easy to interfere with other structures.

Disclosure of Invention

The underwater grouting system for the deepwater jacket is arranged below the water surface, so that the grouting distance is shortened, and the engineering cost is reduced.

In order to solve the technical problems, the utility model provides an underwater grouting system for a deep water jacket, which comprises a grouting pipeline, a grouting ring, a grouting hose and a grouting station, wherein one end of the grouting hose is connected with a grouting machine, the other end of the grouting hose is connected with a grouting receiving end of the grouting station, the grouting station is positioned underwater and is fixed on the jacket through an underwater bracket, one end of the grouting pipeline is connected with a grouting output end of the grouting station, a plurality of grouting openings are formed in a skirt pile sleeve of the jacket, the grouting ring is reversely buckled on the grouting openings to form a grouting space, and the other end of the grouting pipeline is communicated with the grouting space surrounded by the grouting ring.

Further, the grouting station is provided with a main grouting assembly and a standby grouting assembly, and in a normal state, the grouting hose and the grouting pipeline are communicated with the main grouting assembly, and in an emergency state, the grouting hose and the grouting pipeline are communicated with the standby grouting assembly.

Further, two grouting rings are arranged on each jacket skirt pile sleeve.

Further, the underwater support comprises a cross rod, two support rods and a fixing rod, one end of the cross rod is fixed to the jacket, two support rods which are arranged in parallel are arranged on the side face of the cross rod, the fixing rod is installed between the two support rods, and the grouting station is arranged on the fixing rod.

The utility model has the technical effects that: the grouting station is arranged under water, the distance of the grouting pipeline is greatly shortened, engineering cost is reduced, and meanwhile, the grouting ring is arranged, so that grouting is more uniform.

Drawings

Fig. 1 is a top view of a jacket in a deep water grouting system according to the present utility model.

Fig. 2 is a side view of an observation point in an underwater grouting system for a deepwater jacket, provided by the utility model.

Fig. 3 is a front view of a grouting station for use in a deep water jacket underwater grouting system according to the present utility model.

Fig. 4 is a schematic diagram of a connection between a grouting line and a grouting ring in a deep water jacket underwater grouting system according to the present utility model.

Wherein, grouting the pipeline-1; grouting station-2; grouting ring-3; grouting an output end-4; jacket skirt pile sleeve-5; an underwater bracket-6; grouting a hose-7; grouting receiving end-8.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the utility model, so that those skilled in the art may better understand the utility model and practice it.

The embodiment of the utility model provides an underwater grouting system for a deepwater jacket, which is shown in combination with fig. 1 to 4 and comprises a grouting pipeline 1, a grouting ring 3, a grouting hose 7 and a grouting station 2.

One end of a grouting hose 7 is connected with a grouting machine, the other end of the grouting hose is connected with a grouting receiving end 8 of a grouting station 2, the grouting station 2 is positioned underwater and is fixed on a jacket through an underwater bracket 6, one end of a grouting pipeline 1 is connected with a grouting output end 4 of the grouting station 2, and the other end of the grouting pipeline is communicated with a jacket pile group sleeve through a grouting ring 3.

Be equipped with a plurality of thick liquid mouths of advancing on jacket skirt stake sleeve 5, advance thick liquid mouthful along jacket skirt stake sleeve 5 side evenly distributed, grout ring 3 back-off is in the thick liquid mouthful grout space that forms, and grout line 1's the other end and grout ring 3 enclose the grout space intercommunication, grout through advancing thick liquid mouthful and grout ring 3, can make the grout more even.

Specifically, the grouting station 2 is provided with a main grouting component and a standby grouting component, under the normal state, the grouting hose 7 and the grouting pipeline 1 are communicated with the main grouting component, under the emergency state, namely when the main grouting component is damaged or fails, the grouting hose 7 and the grouting pipeline 1 are communicated with the standby grouting component, double guarantee is provided, and grouting stability is guaranteed.

Specifically, two grouting rings 3 are installed on each jacket skirt pile sleeve 5, and two grouting pipelines 1 are correspondingly arranged.

The underwater support 6 comprises a cross rod, two support rods and a fixing rod, one end of the cross rod is fixed on the jacket, two support rods which are arranged in parallel are arranged on the side face of the cross rod, the fixing rod is installed in the middle of the two support rods, and the grouting station 2 is arranged on the fixing rod.

In the utility model, slurry enters a grouting hose 7 from a grouting machine on a transport ship, then enters a grouting pipeline 1 through a grouting station 2, then enters a grouting space surrounded by a grouting ring 3, and enters a jacket skirt pile sleeve 5 through a slurry inlet.

The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.

Claims

1. An underwater grouting system for a deepwater jacket, which is characterized in that: including grout pipeline, grout ring, grout hose and grout station, the grout machine is connected to the one end of grout hose, and the other end is connected the grout receiving terminal at grout station, the grout station is located under water, and is fixed in the jacket through the support under water, the one end of grout pipeline connect in the grout output at grout station, be equipped with a plurality of grout inlets on the jacket skirt pile sleeve, grout ring back-off forms the grout space in the grout inlet, the other end of grout pipeline with grout space intercommunication that the grout ring encloses.

2. The underwater grouting system for deep water jacket as recited in claim 1, wherein: the grouting station is provided with a main grouting assembly and a standby grouting assembly, and in a normal state, the grouting hose and the grouting pipeline are communicated with the main grouting assembly, and in an emergency state, the grouting hose and the grouting pipeline are communicated with the standby grouting assembly.

3. The underwater grouting system for deep water jacket as recited in claim 1, wherein: two grouting rings are arranged on each jacket skirt pile sleeve.

4. The underwater grouting system for deep water jacket as recited in claim 1, wherein: the underwater support comprises a cross rod, two support rods and a fixing rod, one end of the cross rod is fixed to the jacket, two support rods which are arranged in parallel are arranged on the side face of the cross rod, the fixing rod is installed between the two support rods, and the grouting station is arranged on the fixing rod.