Modular drilling fluid processing equipment for offshore drilling platforms

Abstract

The utility model provides a kind of modularization drilling fluid processing equipment of offshore drilling platform, including two side -by-side arrangement's mud tank, be provided with stirring subassembly in mud tank, each described mud tank is separately provided input branch, first return branch and second return branch, two described input branch connects same input main road, and input main road is provided input gate valve on;The input main road connects main circulation pipe, and one end of main circulation pipe is connected air source, and its other end is connected mud filling tank, and input main road is connected mud filling tank between main circulation pipe and is provided forced seal gate valve;The utility model aims at presenting a kind of modularization drilling fluid processing equipment of offshore drilling platform, to be suitable for offshore drilling platform, drilling fluid processing equipment can be set on open deck, to provide fresh air for operator;Equipment overall structure is compact, reduces to occupy deck space.

Description

Technical Field

[0001] This utility model belongs to the field of drilling fluid treatment, and in particular relates to a modular drilling fluid treatment device for offshore drilling platforms. Background Technology

[0002] Offshore drilling platforms are typically equipped with drilling rigs and mud tanks. The mud tank is a crucial piece of equipment in oil drilling operations, used for storing and processing drilling fluid (commonly known as mud). The mud tank consists of the main body and a mixing system. Drilling requires a large amount of mud, and the mud tank stores this large quantity to meet continuous circulation needs. If the mud tank is located below deck, it hinders the emission of dust and fumes; if it is located on deck, it occupies deck space. Utility Model Content

[0003] In view of this, the present invention aims to propose a modular drilling fluid treatment device for offshore drilling platforms, which is suitable for offshore drilling platforms. The drilling fluid treatment device can be installed on an open deck to provide fresh air for operators. The overall structure of the device is compact, reducing the amount of deck space occupied.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A modular drilling fluid treatment device for an offshore drilling platform includes two mud tanks arranged side by side. Each mud tank is equipped with a stirring assembly. Each mud tank has an input branch, a first return branch, and a second return branch. The two input branches are connected to the same main input line, which is equipped with an input gate valve. The main input line is connected to a main circulation pipe, one end of which is connected to an air source, and the other end is connected to a mud filling tank. A forced-sealing gate valve is installed on the main circulation pipe between the main input line and the mud filling tank. Two first return branches are connected to the same first return main line, and a mud pump is installed on the first return main line; two second return branches are connected to the same second return main line, and a mud pump is installed on the second return main line; the first return main line and the second return main line are connected to the same return operation main line, the return operation main line is connected to the drilling operation bell mouth, and an operation gate valve is installed on the return operation main line.

[0005] Furthermore, an input pressure transmitter and an output pressure transmitter are respectively installed on the pipelines on both sides of the mud pump.

[0006] Furthermore, each of the mud tanks is equipped with two stirring components, each including a motor, a stirring rod, and stirring blades. The output shaft of the motor is connected to the stirring rod, and multiple stirring blades are provided on the stirring rod.

[0007] Furthermore, one-way valves are respectively installed on the input branch, the first return branch, and the second return branch.

[0008] Furthermore, both of the aforementioned mud tanks have a volume of 5 cubic meters.

[0009] Furthermore, it also includes a module housing, in which the mud tank, mud pump, input branch, input main line, first return branch, and second return branch are disposed.

[0010] Furthermore, the module housing is fitted inside the cantilever.

[0011] Compared with existing technologies, the modular drilling fluid treatment equipment for offshore drilling platforms described in this utility model has the following advantages: The modular drilling fluid treatment equipment for offshore drilling platforms described in this utility model has two mud tanks working together to meet the large amount of mud required during the drilling process; the equipment has a compact structure, is suitable for installation on the deck, and the gate valve is conveniently located for personnel to operate; the main structure of the equipment is housed in a modular shell, which facilitates transportation and on-site assembly and adapts to the operational needs of different well sites. Attached Figure Description

[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram of the modular drilling fluid treatment equipment described in an embodiment of the present invention.

[0013] Explanation of reference numerals in the attached figures: 1-Air source; 2-Forced sealing gate valve; 3-Main circulation pipe; 4-Mud filling tank; 5-Input gate valve; 6-Main input line; 7-Input branch line; 8-Mixing assembly; 9-Mud tank; 10-First return branch line; 11-Input pressure transmitter; 12-Mud pump; 13-Output pressure transmitter; 14-First return main line; 15-First return main line; 16-Second return branch line; 17-Check valve; 18-Return operation main line; 19-Operation gate valve; 20-Drilling operation bell mouth; 21-Module housing. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] like Figure 1As shown, a modular drilling fluid treatment device for an offshore drilling platform includes two mud tanks 9 arranged side by side. Each mud tank 9 is equipped with a stirring assembly 8. Each mud tank 9 is provided with an input branch 7, a first return branch 10, and a second return branch 16. The two input branches 7 are connected to the same main input branch 6, which is equipped with an input gate valve 5. The main input branch 6 is connected to a main circulation pipe 3, one end of which is connected to an air source 1, and the other end is connected to a mud filling tank 4. A forced sealing gate valve 2 is installed on the main circulation pipe 3 between the main input branch 6 and the mud filling tank 4. Two first return branches 10 are connected to the same first return main 14, and a mud pump 12 is installed on the first return main 14; two second return branches 16 are connected to the same second return main 15, and a mud pump 12 is installed on the second return main 15; the first return main 14 and the second return main 15 are connected to the same return operation main 18, the return operation main 18 is connected to the drilling operation bell mouth 20, and an operation gate valve 19 is installed on the return operation main 18.

[0017] This utility model relates to a modular drilling fluid treatment device for offshore drilling platforms. Two mud tanks work together to meet the large amount of mud required during drilling. The device has a compact structure, is suitable for installation on the deck, and the gate valve is conveniently located for personnel operation, while also providing fresh air for the operators. The operating steps include: keeping the forced sealing gate valve 2 closed, manually opening the input gate valve 5 and the working gate valve 19, allowing air to enter the main input channel 6 from the air source, then through the input branch channel 7 into the mud tank 9, starting the mud pump 12, and simultaneously sending mud from the two mud tanks 9 into the first return branch channel 10 and the second return branch channel 16, respectively. The mud then flows from the two first return branches 10 into the first return main channel 14, and from the two second return branches 16 into the second return main channel 15, and finally through the first return main channel 14 and the second return main channel 15 into the return working main channel 18, which is then delivered to the drilling working bell mouth 20. Among them, two first return branches 10 merge into the first return main road 14, and two second return branches 16 merge into the second return main road 15, and then merge into the return operation main road 18 via the first return main road 14 and the second return main road 15. The structure is compact and reduces space occupation. When adding mud, open the forced sealing gate valve 2 and the input gate valve 5. The mud is added from the mud filling tank 4 to the mud tank 9 through the main circulation pipe 3 to replenish the mud. The main circulation pipe 3 is connected to the air source 1 at one end and to the mud filling tank 4 at the other end. Sharing a main circulation pipe can reduce the number of pipelines and the space occupied.

[0018] like Figure 1 As shown, an input pressure transmitter 11 and an output pressure transmitter 13 are respectively installed on the pipelines on both sides of the mud pump 12. The operating status of the mud pump 12 is detected by the pressure transmitters 11 and 13.

[0019] Each of the mud tanks 9 is equipped with two agitator components 8. Each agitator component 8 includes a motor, an agitator rod, and agitator blades. The output shaft of the motor is connected to the agitator rod, and multiple agitator blades are provided on the agitator rod. The two agitator components 8 prevent mud sedimentation.

[0020] In this preferred embodiment, one-way valves 17 are respectively installed on the input branch 7, the first return branch 10, and the second return branch 16. The volume of each of the two mud tanks 9 is 5 cubic meters.

[0021] like Figure 1 As shown, it also includes a module housing 21, within which the mud tank 9, mud pump 12, input branch 7, input main line 6, first return branch 10, and second return branch 16 are housed. The module housing accommodates the main structure of the equipment, forming a modular structure that facilitates transportation and on-site assembly, adapting to the operational needs of different well sites.

[0022] The module housing 21 is fitted inside the cantilever. The cantilever is a crucial working module of the jack-up drilling platform, serving as the primary carrier for drilling equipment and tools. The module housing 21 is fitted inside the cantilever to maximize the use of the main deck area to accommodate the equipment.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular drilling fluid treatment device for an offshore drilling platform, comprising two mud tanks (9) arranged side by side, wherein a stirring assembly (8) is provided inside the mud tanks (9), characterized in that: Each of the mud tanks (9) is provided with an input branch (7), a first return branch (10), and a second return branch (16). The two input branches (7) are connected to the same main input branch (6). An input gate valve (5) is provided on the main input branch (6). The main input branch (6) is connected to the main circulation pipe (3). One end of the main circulation pipe (3) is connected to the air source (1), and the other end is connected to the mud filling tank (4). A forced sealing gate valve (2) is provided on the main circulation pipe (3) between the main input branch (6) and the mud filling tank (4). Two first return branches (10) are connected to the same first return main (14), and a mud pump (12) is installed on the first return main (14); two second return branches (16) are connected to the same second return main (15), and a mud pump (12) is installed on the second return main (15); the first return main (14) and the second return main (15) are connected to the same return operation main (18), the return operation main (18) is connected to the drilling operation bell mouth (20), and an operation gate valve (19) is installed on the return operation main (18).

2. The modular drilling fluid processing plant for an offshore drilling platform of claim 1, wherein: An input pressure transmitter (11) and an output pressure transmitter (13) are respectively installed on the pipelines on both sides of the mud pump (12).

3. The modular drilling fluid processing plant for an offshore drilling platform of claim 1, wherein: Each of the mud tanks (9) is provided with two stirring components (8). The stirring components (8) include a motor, a stirring rod and stirring blades. The output shaft of the motor is connected to the stirring rod, and multiple stirring blades are provided on the stirring rod.

4. The modular drilling fluid processing plant for an offshore drilling platform of claim 1, wherein: One-way valves (17) are respectively installed on the input branch (7), the first return branch (10), and the second return branch (16).

5. The modular drilling fluid processing plant for an offshore drilling platform of claim 1, wherein: Both mud tanks (9) have a volume of 5 cubic meters.

6. The modular drilling fluid processing plant for an offshore drilling platform of claim 1, wherein: It also includes a module housing (21), and the mud tank (9), mud pump (12), input branch (7), input main line (6), first return branch (10), and second return branch (16) are disposed inside the module housing.

7. The modular drilling fluid processing plant of a offshore drilling platform of claim 6, wherein: The offshore drilling platform includes a deck and a cantilever mounted on the deck, characterized in that: the module housing (21) is fitted inside the cantilever.

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