CN221091180U - Full-function ocean development system - Google Patents

Abstract

The utility model provides a full-functional ocean development system, which comprises a floating body, wherein the floating body is of a multi-layer structure, a condensate tank, a liquefied natural gas tank, a production crude oil tank and a liquefied petroleum gas tank are arranged on a first layer structure, a power generation module, a natural gas deacidification module, a separation rectification module, a condensate stabilization module, an electric module, a natural gas liquefaction module, an evaporation gas compression module and a carbon dioxide reinjection module are arranged on a second layer structure, a production water treatment module and a feeding separation module are arranged on a third layer structure, and a fuel gas module, a public engineering module, a chemical agent injection module, an ethylene glycol recovery module and a natural gas dehydration module are arranged on a fourth layer structure; the utility model solves the problems of incomplete functional coverage and difficult reconstruction and extension of the mining equipment in the prior art, fully considers the processing flow and gravity characteristics of the fluid, and can save energy, reduce consumption and reduce carbon dioxide emission.

Description

Full-function ocean development system

Technical Field

The utility model relates to the field of ocean resource development, in particular to a full-function ocean development system.

Background

A floating production storage handling system (Floating Production Storage and Offloading, hereinafter FPSO) is used for offshore field development, especially as a 500 meter deep ocean gas development system. The FPSO is made up of several parts, including a floating body, an upper module, mooring, riser interface, etc. According to the development scheme of oil field oil gas reserves, the oil gas exploitation and treatment facilities of the upper module are composed of up to tens of oil gas water treatment modules, and the oil gas exploitation and treatment facilities comprise functions of oil gas water separation, dehydration, decarburization, deacidification, hydrocarbon dew point control, heavy hydrocarbon removal, natural gas liquefaction, gas injection, water injection, gas lift, external transportation, flow guarantee, blow-down/torch, power generation, public works and the like, and are core components of the FPSO. The development of oil and gas fields is a long-term process of up to 25 years, even more than 30 years, in which the composition, pressure, temperature and flow of wellhead effluent of the oil and gas field are all changed, the geological condition of the oil and gas reservoir is also changed, and the oil extraction engineering scheme must be dynamically adjusted according to the change of the reservoir characteristics of the underground oil and gas layer. However, at present, all FPSOs are custom-built according to an oil and gas field development scheme under early oil and gas reservoir geological conditions, after being moored at sea, if deep modification related to scale and function adjustment is needed, the FPSOs need to leave a production position and enter a dock for reconstruction and expansion, meanwhile, another FPSO meeting production conditions is needed to replace the FPSOs to maintain continuous production of the oil and gas field, but the cost is huge, the switching operation seriously affects stable production of the oil and gas field, and in practice, an FPSO with similar processing capacity is difficult to find to replace, so that the FPSO is not feasible for the deep modification of scale and function adjustment required by dynamic development of the oil and gas field, only small-scale adjustment modification can be carried out, the FPSO tends to operate in a long term and low-efficiency manner in the middle and later stages of the oil and gas field development, the oil and gas field recovery ratio is directly reduced, and the full life cycle development efficiency and benefit are seriously affected.

It can be seen that the prior art has problems of insufficient coverage of the mining equipment and difficult reconstruction and extension.

Disclosure of utility model

The utility model provides a full-function ocean development system, which solves the problems of insufficient coverage and difficult reconstruction and extension of mining equipment in the prior art.

The utility model provides a full-functional ocean development system which comprises a floating body, a condensate tank, a liquefied natural gas tank, a crude oil production tank, a liquefied petroleum gas tank, a power generation module, a natural gas deacidification module, a separation rectification module, a condensate stabilization module, a chemical agent injection module, an electric module, an evaporation gas compression module, a carbon dioxide reinjection module, a production water treatment module, a feeding separation module, a fuel gas module, a public engineering module, a natural gas liquefaction module, an ethylene glycol recovery module, a natural gas dehydration module and at least one reserved module, wherein the floating body is a natural gas tank;

The floating body is of a multilayer structure, and the multilayer structure comprises a first layer structure, a second layer structure, a third layer structure and a fourth layer structure from bottom to top; the condensate tank, the liquefied natural gas tank, the crude oil production tank and the liquefied petroleum gas tank are arranged on a first layer structure, the power generation module, the natural gas deacidification module, the separation rectification module, the condensate stabilization module, the electric module, the natural gas liquefaction module, the evaporation gas compression module and the carbon dioxide reinjection module are arranged on a second layer structure, the production water treatment module and the feeding separation module are arranged on a third layer structure, and the fuel gas module, the public engineering module, the chemical agent injection module, the ethylene glycol recovery module and the natural gas dehydration module are arranged on a fourth layer structure;

at least one reserved module is detachably arranged on one or more layers in the multi-layer structure;

The at least one reservation module is at least one of the following: the device comprises a desalination module, a gas pressurization module, a heavy hydrocarbon removal module, a mercury removal module and a decarburization module.

Optionally, at least part of the at least one reserved module is arranged between the power generation module and the natural gas deacidification module.

Optionally, the condensate tank, the liquefied natural gas tank, the crude oil production tank and the liquefied petroleum gas tank in the first layer structure are arranged adjacently in sequence;

The power generation module, the natural gas deacidification module, the separation rectification module, the condensate oil stabilization module, the electric module, the natural gas liquefaction module, the evaporation gas compression module and the carbon dioxide reinjection module in the second layer structure are sequentially and adjacently arranged.

Optionally, the production water treatment modules and the feeding separation modules in the third layer structure are arranged adjacently in sequence;

The fuel gas module, the public engineering module, the chemical agent injection module, the ethylene glycol recovery module and the natural gas dehydration module in the fourth layer structure are arranged adjacently in sequence.

Optionally, the full-functional ocean development system further comprises a chemical injection oil displacement module, a steam injection module, a microorganism injection module, a nano oil displacement module and a chemical profile control module;

The chemical injection oil displacement module, the steam injection module, the microorganism injection module, the nano oil displacement module and the chemical profile control module are all located in the fourth layer structure.

Optionally, the full-function ocean development system further comprises a living building and a flare stack, wherein the flare stack is positioned at the front end of the second layer structure of the floating body, and the living building is positioned at the tail end of the second layer structure of the floating body.

Optionally, the full-function marine development system further comprises a mooring device; the mooring equipment is arranged between the torch tower and the multilayer structure along the extending direction of the floating body;

the mooring equipment adopts a multipoint mooring structure, a single-point mooring structure or an inner turret mooring structure.

Alternatively, the floating body is a ship-type floating body, a box-type floating body, a tension leg-type floating body, a semi-submersible type floating body or a deep draft column-type floating body.

Optionally, the production water treatment module comprises a heat exchanger, a degassing tank, a hydrocyclone tank, a microporous tube type microbubble generator, a vertical cyclone floating tank, a booster pump and a water treatment filter;

The outlet of the heat exchanger is connected with the inlet of the degassing tank, the outlet of the degassing tank is connected with the inlet of the hydrocyclone tank, the outlet of the hydrocyclone tank is connected with the first inlet of the vertical cyclone floating tank, the outlet of the vertical cyclone floating tank is connected with the inlet of the booster pump, the first outlet of the booster pump is connected with the inlet of the microporous tube type microbubble generator, the outlet of the microporous tube type microbubble generator is connected with the second inlet of the vertical cyclone floating tank, and the second outlet of the booster pump is connected with the water treatment filter;

The inlet of the heat exchanger receives the water to be treated and discharges the water to the outside or is used for production after being treated by a degassing tank, a hydrocyclone tank, a microporous tube type micro-bubble generator, a vertical cyclone floating tank, a booster pump and a water treatment filter.

Optionally, the natural gas dehydration module comprises a gas-liquid separator, a triethylene glycol absorption tower and a triethylene glycol regeneration system;

The inlet of the gas-liquid separator is used for receiving natural gas to be dehydrated, the outlet of the gas-liquid separator is connected with the first inlet of the triethylene glycol absorption tower, the triethylene glycol absorption tower is provided with a first outlet and a second outlet, and the first outlet of the triethylene glycol absorption tower is used for outputting the treated natural gas to the outside;

The second outlet of the triethylene glycol absorber is connected to the inlet of the triethylene glycol regeneration system, and the outlet of the triethylene glycol regeneration system is connected to the second inlet of the triethylene glycol absorber.

According to the utility model, the condensate tank, the liquefied natural gas tank, the production crude oil tank and the liquefied petroleum gas tank are arranged on the first layer structure, the power generation module, the natural gas deacidification module, the separation rectification module, the condensate stabilization module, the electric module, the evaporation gas compression module, the carbon dioxide reinjection module and the chemical agent injection module are arranged on the second layer structure, the production water treatment module and the feeding separation module are arranged on the third layer structure, and the fuel gas module, the public engineering module, the natural gas liquefaction module, the ethylene glycol recovery module and the natural gas dehydration module are arranged on the fourth layer structure, so that the full-function coverage of the exploitation system is realized, the working medium (such as crude oil, natural gas, water and the like) can be operated more smoothly between the modules, the exploitation efficiency is improved, further, the space utilization rate of the floating body can be improved through the reasonable arrangement between the multi-layer structure and the modules, more production modules can be arranged on the floating body, and the functional coverage degree and the efficiency of the exploitation system are further improved. In addition, the reserved module is arranged on the floating body, so that the requirement of the change of the mining working condition in the long-term mining process can be met, the production module meeting the current production requirement can be replaced or newly added in time, and the reconstruction and the extension of the mining equipment can be realized. Furthermore, the utility model fully considers the treatment flow and gravity characteristics of the fluid, can save energy and reduce consumption, and reduce carbon dioxide emission.

Drawings

FIG. 1 is a schematic diagram of a full-function marine development system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a partial top view of a full-featured marine development system in accordance with an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a partial top view of a full-functional marine development system according to an embodiment of the present utility model, wherein the reservation module is configured as a water injection module, a decarbonization module, a gas pressurization module, a mercury removal module, and a desalination module;

FIG. 4 is a schematic diagram of a process water treatment module according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a module of the natural gas dehydration module according to an embodiment of the present utility model.

Reference numerals illustrate:

1: a full-function marine development system;

10: a floating body; 101: a reservation module; 1011: a water injection module; 1012: a decarburization module; 1013: a gas pressurizing module; 1014: a mercury removal module; 1015: a desalination module;

11: a first layer structure; 111: a condensate tank; 112: a liquefied natural gas tank; 113: producing a crude oil tank; 114: a liquefied petroleum gas tank;

12: a second layer structure; 121: a power generation module; 122: a natural gas deacidification module; 123: a separation rectification module; 124: a condensate stabilization module; 125: a natural gas liquefaction module; 126: an electrical module; 127: an evaporation gas compression module; 128: a carbon dioxide reinjection module;

13: a third layer structure; 134: a production water treatment module; 1341: a heat exchanger; 1342: a degassing tank; 1343: a hydrocyclone tank; 1344: a vertical cyclone buoyancy tank; 1345: a booster pump; 1346: a microporous tube type microbubble generator; 135: a feed separation module; 1347: a water treatment filter;

14: a fourth layer structure; 141: a fuel gas module; 142: a utility module; 143: a chemical injection module; 144: a glycol recovery module; 145: a natural gas dehydration module; 1451: a gas-liquid separator; 1452: triethylene glycol absorber 1453: a triethylene glycol regeneration system; 15: a living building; 16: a mooring device; 17: and a flare stack.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

The utility model provides a full-functional marine development system 1, please refer to fig. 1 in combination with fig. 2 and 3, as shown in fig. 1, the full-functional marine development system 1 comprises a floating body 10, a condensate tank 111, a liquefied natural gas tank 112, a production crude tank 113, a liquefied petroleum gas tank 114, a power generation module 121, a natural gas deacidification module 122, a separation rectification module 123, a condensate stabilization module 124, a natural gas liquefaction module 125, an electric module 126, an evaporation gas compression module 127, a carbon dioxide reinjection module 128, a production water treatment module 134, a feed separation module 135, a fuel gas module 141, a utility module 142, a chemical agent injection module 143, a glycol recovery module 144, a natural gas dehydration module 145 and at least one reservation module 101;

The floating body 10 is a multi-layered structure including, from bottom to top, a first layer structure 11, a second layer structure 12, a third layer structure 13, and a fourth layer structure 14. The condensate tank 111, the liquefied natural gas tank 112, the production crude oil tank 113 and the liquefied petroleum gas tank 114 are arranged on the first layer structure 11, the power generation module 121, the natural gas deacidification module 122, the separation rectification module 123, the condensate stabilization module 124, the natural gas liquefaction module 125, the electric module 126, the evaporation gas compression module 127 and the carbon dioxide reinjection module 128 are arranged on the second layer structure 12, the production water treatment module 134 and the feeding separation module 135 are arranged on the third layer structure 13, and the fuel gas module 141, the public engineering module 142, the chemical agent injection module 143, the ethylene glycol recovery module 144 and the natural gas dehydration module 145 are arranged on the fourth layer structure 14;

Wherein at least one reservation module 101 is detachably disposed on one or more layers of the multi-layer structure; the at least one reservation module may be understood as: the number of the reserved modules may be 1 or more.

According to the utility model, by arranging the condensate tank 111, the liquefied natural gas tank 112, the production crude oil tank 113 and the liquefied petroleum gas tank 114 on the first layer structure 11, arranging the power generation module 121, the natural gas deacidification module 122, the separation rectification module 123, the condensate stabilization module 124, the natural gas liquefaction module 125, the electric module 126, the evaporation gas compression module 127 and the carbon dioxide reinjection module 128 on the second layer structure 12, arranging the production water treatment module 134 and the feeding separation module 135 on the third layer structure 13, and arranging the fuel gas module 141, the public engineering module 142, the chemical agent injection module 143, the ethylene glycol recovery module 144 and the natural gas dehydration module 145 on the fourth layer structure 14, the full functional coverage of the exploitation system is realized, the working medium (such as crude oil, natural gas, water and the like) can be operated more smoothly between the modules, so that the exploitation efficiency is improved, and further, through reasonable arrangement among the multiple layers and the modules, the exploitation space utilization rate of the floating body can be improved, more production modules can be facilitated, and the functional coverage degree and efficiency of the system are further improved. In addition, the reserved module is arranged on the floating body, so that the requirement of the change of the mining working condition in the long-term mining process can be met, the production module meeting the current production requirement can be replaced or newly added in time, and the reconstruction and the extension of the mining equipment can be realized. Furthermore, the treatment flow and the gravity characteristic of the fluid are fully considered, so that energy conservation and consumption reduction can be realized, and carbon dioxide emission can be reduced. At least one reservation module 101 is at least one of: the device comprises a desalination module, a gas pressurization module, a heavy hydrocarbon removal module, a mercury removal module and a decarburization module.

In the utility model, the pipeline connection mode between the production modules is not limited, for example, the port between the communication pipelines can be flange connection, welding connection, quick joint connection and the like, the port can be fixed support, sliding support, guide rail support, the cable can be a power cable, a control cable, a communication cable, an optical cable and a hydraulic cable, the cable port can be a junction box, socket connection, a terminal board and the like, and the main equipment of the electric control (E-House) module comprises a medium-voltage power distribution cabinet, a low-voltage power distribution cabinet, a transformer, an instrument cabinet, an air conditioning Heating Ventilation (HVAC), an Uninterruptible Power Supply (UPS) and the like, so the utility model is not limited.

Further, the floating body 10 is a ship-type floating body, a box-type floating body, a tension leg-type floating body, a semi-submersible type floating body or a deep draft column-type floating body. In one embodiment, as shown in fig. 1-3, the floating body is a boat-type floating body.

In one embodiment, as shown in fig. 1, the condensate tank 111, the lng tank 112, the production crude tank 113, and the liquefied petroleum gas tank 114 in the first layer structure 11 are disposed adjacent to one another in this order. The power generation module 121, the natural gas deacidification module 122, the separation and rectification module 123, the condensate stabilization module 124, the electric module 126, the natural gas liquefaction module 125, the evaporation gas compression module 127 and the carbon dioxide reinjection module 128 in the second layer structure 12 are adjacently arranged in sequence.

In one embodiment, as shown in FIG. 1, the produced water treatment module 134 and the feed separation module 135 in the third layer structure 13 are disposed adjacent one another in sequence. The fuel gas module 141, the utility module 142, the chemical injection module 143, the ethylene glycol recovery module 144, and the natural gas dehydration module 145 in the fourth layer structure 14 are disposed adjacent one another in this order.

In other alternative embodiments, the production modules may be arranged in different orders or locations due to different production content and different conditions of each production system.

Further, in one embodiment, the full-functional ocean development system further comprises a chemical flooding module, a steam flooding module, a microorganism flooding module, a nano flooding module and a chemical profile control module, wherein in one example, the chemical flooding module, the steam flooding module, the microorganism flooding module, the nano flooding module and the chemical profile control module are all located in the fourth layer structure of the floating body 10. The modules described above may be mated with a chemical injection module 143 to enhance recovery from production.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating a partial top view structure of a full-functional marine development system according to an embodiment of the utility model. Fig. 2 only shows part of the production modules in the second layer structure (as understood in connection with the description of the specific modules above) in the embodiment of the present utility model, and in one embodiment, at least part of at least one reserved module 101 is disposed between the power generation module 121 and the natural gas deacidification module 122, as shown in fig. 2. In one embodiment, as shown in fig. 3, the number of reserved modules is five, which are a water injection module 1011, a decarbonization module 1012, a gas pressurizing module 1013, a mercury removal module 1014, and a desalination module 1015, respectively. The water injection module 1011 is disposed between the power generation module 121 and the natural gas deacidification module 122, and in other alternative embodiments, each reserved module may be a module for implementing other production functions, and the arrangement mode liquid may be other modes.

In one embodiment, as shown in fig. 1-3, only a portion of the production modules in the second floor structure of the present embodiment (as understood in conjunction with the description of the specific modules above) are shown in fig. 3, and the full-function marine development system 1 further includes a living building 15 and a flare stack 17, where the flare stack 17 is located at the front end of the second floor structure 12 of the floating body 10 and the living building 15 is located at the rear end of the second floor structure 12 of the floating body 10.

Further, the full-function marine development system 1 further comprises a mooring device 16; along the extension of the floating body 10, a mooring 16 is arranged between the flare stack 17 and the multi-layered structure.

Specifically, the mooring 16 may employ a multi-point mooring configuration, a single point mooring configuration, or a turret-turret mooring configuration. The single point mooring may consist of, for example, mooring systems, pontoons, hydraulic operating systems, ventilation, fire detection and fire protection systems, etc. Wherein the hydraulic operating system is divided into two hydraulic control units: and the main hydraulic station unit is responsible for pressurizing the fluid sealing ring of the single-point rotary joint so that the sealing ring has a sealing effect on the fluid. By this hydraulic pressure source, the shut-off valve of the fluid inlet is effectively controlled. The other is a secondary hydraulic station unit which is used for providing a hydraulic power source for single-point actuation equipment, namely a tie-back large winch, a mechanical locking device, a sewage pump, a water filling valve, a single-point hatch cover hydraulic arm and the like. Single point mooring function: firstly, mooring a floating production device, so that the device rotates along with wind and water flow by taking a single point as an axle; and secondly, fluid flowing through the sea pipe from the underwater or wellhead platform is conveyed to the device through the switching of the single-point fluid rotary head, and the power supply of the device is conveyed to underwater facilities or the wellhead platform through the single-point electric rotary head. Meanwhile, the hydraulic source of the upper deck can be transferred to the bilge through the single-point hydraulic rotating head, and hydraulic power is provided for controlling the emergency shutoff valve, the pipe cleaner and the like to perform effective operation.

Further, as shown in FIG. 4, in one embodiment, the produced water treatment module 134 includes a heat exchanger 1341, a degasser 1342, a hydrocyclone 1343, a micro-porous tube microbubble generator 1346, a vertical cyclone buoyancy tank 1344, a booster pump 1345, and a water treatment filter 1347. The outlet of the heat exchanger 1341 is connected with the inlet of the degassing tank 1342, the outlet of the degassing tank 1342 is connected with the inlet of the hydrocyclone tank 1343, the outlet of the hydrocyclone tank 1343 is connected with the first inlet of the vertical cyclone floating tank 1344, the outlet of the vertical cyclone floating tank 1344 is connected with the inlet of the booster pump 1345, the first outlet of the booster pump 1345 is connected with the inlet of the microporous tubular microbubble generator 1346, the outlet of the microporous tubular microbubble generator 1346 is connected with the second inlet of the vertical cyclone floating tank 1344, and the second outlet of the booster pump 1345 is connected with the water treatment filter 1347;

The inlet of the heat exchanger 1341 receives the production water to be treated and is discharged to the outside or used for production after being treated by a degasification tank 1342, a hydrocyclone 1343, a micro-porous tube type micro-bubble generator 1346, a vertical cyclone floatation tank 1344, a booster pump 1345, and a water treatment filter 1347.

In one embodiment, as shown in fig. 5, the natural gas dehydration module 145 includes a gas-liquid separator 1451, a triethylene glycol absorber 1452, and a triethylene glycol regeneration system 1453;

The inlet of the gas-liquid separator 1451 is used for receiving natural gas to be dehydrated, the outlet of the gas-liquid separator 1451 is connected to the first inlet of the triethylene glycol absorber 1452, the triethylene glycol absorber 1452 is provided with a first outlet and a second outlet, and the first outlet of the triethylene glycol absorber 1452 is used for outputting the treated natural gas to the outside;

The second outlet of the triethylene glycol absorber 1452 is connected to the inlet of the triethylene glycol regeneration system 1453, and the outlet of the triethylene glycol regeneration system 1453 is connected to the second inlet of the triethylene glycol absorber 1452.

It will be appreciated by those skilled in the art that the natural gas dehydration may also be carried out using molecular sieve dehydration, for example, the natural gas from the upstream module enters the inlet of a gas-liquid separator, the outlet of the gas-liquid separator is connected to the inlet of a molecular sieve packed column, the outlet of the molecular sieve packed column is connected to the inlet of a dust filter, and the outlet of the dust filter is connected to the inlet of the downstream module; the outlet of the dust filter is connected with the inlet of the regenerating system of the molecular sieve packing tower through an interface, the outlet of the regenerating system of the molecular sieve packing tower is connected with the regenerated gas inlet of the molecular sieve packing tower, and the outlet of the regenerated gas of the molecular sieve packing tower is connected with the inlet of the gas-liquid separator, so that water contained in the natural gas is removed to the production standard, and the further treatment requirement of the natural gas is met.

Further, the natural gas deacidification module 122 may include, for example, an inlet separator, an absorber, a wash tank, an amine liquid circulation pump, a booster pump, a filter, a plate heat exchanger, a desorber, and a cooler, the upstream module enters the inlet separator from the natural gas, an inlet separator outlet is connected to an absorber inlet, an absorber bottom outlet is connected to the wash tank inlet, a wash tank outlet is connected to the plate heat exchanger inlet, a plate heat exchanger outlet is connected to the desorber inlet, the desorber bottom outlet is connected to the plate heat exchanger inlet, a plate heat exchanger outlet is connected to the amine liquid circulation pump inlet, the amine liquid circulation pump outlet is connected to the booster pump inlet, the booster pump outlet is connected to the absorber, a stream of amine liquid circulation pump outlet is connected to the filter inlet, a filter outlet is connected to the booster pump inlet, a desorber top outlet is connected to the cooler inlet, and a cooler outlet is connected to the discharge system, thereby removing acid gases (e.g., carbon dioxide, hydrogen sulfide, mercaptans, etc.) contained in the natural gas to production standards, meeting the requirements of further processing of the natural gas.

Further, the glycol recovery module 144 may include, for example, a glycol regeneration dealkylation system for dealkylation, including a rich liquor storage tank, a preheater, a dealkylation pump, a flash tank, a chemical storage tank, a chemical pump, a heater, a preprocessor, and a particulate filter. The hydrocarbon removal process flow may be, for example: the rich MEG solution separated from the pre-module process flow enters the inlet of a rich liquor storage tank, the outlet of the rich liquor storage tank is connected to the inlet of a hydrocarbon removal pump, the outlet of the hydrocarbon removal pump is connected to the inlet of a preheater, the outlet of the preheater is connected to the inlet of a flash tank, the outlet of the top of the flash tank is connected to a low-pressure torch system, and the hydrocarbon-removed rich MEG solution at the outlet of the bottom of the flash tank is sent to a regeneration desalting system. The divalent removal process flow may be, for example: the bottom outlet of the flash tank is connected to the inlet of a heater, the outlet of the heater is connected to the inlet of a preprocessor, the outlet of the preprocessor (reactor) is connected to the inlet of a MEG rich liquid pump, the outlet of the MEG rich liquid pump is connected to the inlet of a particle filter, and the outlet of the particle filter is connected to the inlet of a dehydration regeneration tower; the outlet of the chemical agent storage tank is connected to the inlet of the agent pump, and the outlet of the agent pump is connected to the preprocessor to provide chemical agent for removing bivalent salt, so that hydrocarbon substances and bivalent salt (such as calcium, magnesium and the like) substances contained in the glycol are removed to the production standard, and the further processing requirement of the glycol is met.

Further, the glycol regeneration and dealkylation system can further comprise a negative pressure flash tank, a negative pressure condenser, a lean liquid tank, a circulating heater, a desalination pump, a salt tank, a dissolution tank, a water tank, a desalination centrifuge and a salt discharge pump, wherein a lean liquid pump outlet from a dehydration unit is connected to a negative pressure flash tank inlet, a negative pressure flash tank top outlet is connected to a desalination condenser inlet, a desalination condenser outlet is connected to a lean liquid tank inlet, a lean liquid tank top outlet is connected to a blowdown system, a lean liquid tank bottom outlet is connected to a product pump inlet, and a product pump outlet is connected to a qualified lean glycol storage tank; the bottom outlet of the negative pressure flash tank is connected to the inlet of the circulating pump, the outlet of the circulating pump is connected to the inlet of the circulating heater, and the outlet of the circulating heater is connected to the negative pressure flash tank; the other outlet of the bottom of the negative pressure flash tank is connected to the salt tank inlet, the outlet of the water tank is connected to the water pump inlet, the outlet of the water pump is connected to the salt tank, the outlet of the bottom of the salt tank is connected to the desalination pump inlet, the outlet of the desalination pump is connected to the desalination centrifuge inlet, the outlet of the desalination centrifuge is connected to the dissolution tank, the outlet of the dissolution tank is connected to the salt discharge pump inlet, the outlet of the salt discharge pump is connected to the salt discharge system, and monovalent salt (such as potassium and sodium) contained in ethylene glycol is removed to the production standard.

The ethylene glycol recovery module 144 may also include, for example, an ethylene glycol regeneration dehydration system including a regeneration tower, a dehydration condenser (heat exchanger), a reflux water tank, a vacuum pump, a drain pump, a reboiler, and a lean liquid pump, and the specific process flow may be, for example: the MEG rich liquid with hydrocarbon and divalent salt removed at the upstream enters a regeneration tower, the gas at the top of the regeneration tower is connected to an inlet of a dewatering condenser, an outlet of the dewatering condenser is connected to an inlet of a reflux water tank, an outlet at the top of the reflux water tank is connected to an inlet of a vacuum pump, an outlet of the vacuum pump is connected to a emptying system, an aqueous solution at the bottom of the reflux water tank is connected to an inlet of a drainage pump, a part of the aqueous solution at the bottom of the drainage pump is connected to the regeneration tower for reflux, and most of the aqueous solution is connected to a wastewater system; and the MEG lean solution at the bottom of the regeneration tower is connected to a reboiler inlet, a gas phase outlet of the reboiler is connected to the bottom of the regeneration tower, a liquid phase outlet of the reboiler is connected to a lean solution pump inlet, and the lean solution pump outlet is connected to a monovalent salt removal flow inlet, so that water contained in ethylene glycol is removed to the production standard.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. The full-function ocean development system is characterized by comprising a floating body, a condensate tank, a liquefied natural gas tank, a crude oil production tank, a liquefied petroleum gas tank, a power generation module, a natural gas deacidification module, a separation rectification module, a condensate stabilization module, a chemical agent injection module, an electric module, an evaporation gas compression module, a carbon dioxide reinjection module, a production water treatment module, a feed separation module, a fuel gas module, a public engineering module, a natural gas liquefaction module, an ethylene glycol recovery module, a natural gas dehydration module and at least one reserved module;

The floating body is of a multilayer structure, and the multilayer structure comprises a first layer structure, a second layer structure, a third layer structure and a fourth layer structure from bottom to top; the first layer structure is positioned inside the floating body, the condensate tank, the liquefied natural gas tank, the crude oil production tank and the liquefied petroleum gas tank are arranged on the first layer structure, the power generation module, the natural gas deacidification module, the separation rectification module, the condensate stabilization module, the electrical module, the natural gas liquefaction module, the evaporation gas compression module and the carbon dioxide reinjection module are positioned on the second layer structure, the production water treatment module and the feeding separation module are positioned on the third layer structure, and the fuel gas module, the public engineering module, the chemical agent injection module, the ethylene glycol recovery module and the natural gas dehydration module are positioned on the fourth layer structure;

The at least one reserved module is detachably arranged on one or more layers of the multi-layer structure;

The at least one reservation module is at least one of the following: the device comprises a desalination module, a gas pressurization module, a heavy hydrocarbon removal module, a mercury removal module and a decarburization module.

2. The full-function marine development system of claim 1, wherein at least a portion of the at least one reservation module is disposed between the power generation module and the natural gas deacidification module.

3. The full-featured marine development system of claim 1, wherein the condensate tank, the liquefied natural gas tank, the production crude oil tank, and the liquefied petroleum gas tank in the first layer structure are disposed adjacent to one another in this order;

The power generation module, the natural gas deacidification module, the separation rectification module, the condensate oil stabilization module, the electric module, the natural gas liquefaction module, the evaporation gas compression module and the carbon dioxide reinjection module in the second layer structure are arranged adjacently in sequence.

4. The full-function marine development system of claim 1, wherein the produced water treatment module and the feed separation module in the third layer structure are disposed adjacent to each other in sequence;

The fuel gas module, the public engineering module, the chemical agent injection module, the ethylene glycol recovery module and the natural gas dehydration module in the fourth layer structure are arranged adjacently in sequence.

5. The full-function marine development system of claim 1, further comprising a chemical flooding module, a steam flooding module, a microorganism flooding module, a nano flooding module, and a chemical profile control module;

the chemical injection oil displacement module, the steam injection module, the microorganism injection module, the nano oil displacement module and the chemical profile control module are all located in the fourth layer structure.

6. The full-featured marine development system of claim 1, further comprising a living building and a flare stack, the flare stack being located at a front end of the second floor of the floating body, the living building being located at a rear end of the second floor of the floating body.

7. The full-function marine development system of claim 6, further comprising a mooring device; the mooring equipment is arranged between the flare stack and the multilayer structure along the extending direction of the floating body;

The mooring equipment adopts a multipoint mooring structure, a single-point mooring structure or an inner turret mooring structure.

8. The full-featured marine development system of any one of claims 1-7, wherein the floating body is a boat-type floating body, a box-type floating body, a tension leg-type floating body, a semi-submersible floating body, or a deep draft column-type floating body.

9. The full-function ocean development system of any one of claims 1-7 wherein the produced water treatment module comprises a heat exchanger, a degassing tank, a hydrocyclone tank, a micro-porous tube microbubble generator, a vertical cyclone buoyancy tank, a booster pump, and a water treatment filter;

The outlet of the heat exchanger is connected with the inlet of the degassing tank, the outlet of the degassing tank is connected with the inlet of the hydrocyclone tank, the outlet of the hydrocyclone tank is connected with the first inlet of the vertical cyclone floating tank, the outlet of the vertical cyclone floating tank is connected with the inlet of the booster pump, the first outlet of the booster pump is connected with the inlet of the microporous tube type microbubble generator, the outlet of the microporous tube type microbubble generator is connected with the second inlet of the vertical cyclone floating tank, and the second outlet of the booster pump is connected with the water treatment filter;

And an inlet of the heat exchanger receives production water to be treated, and the production water is discharged to the outside or used for production after being treated by the degassing tank, the hydrocyclone tank, the microporous tube type microbubble generator, the vertical cyclone floating tank, the booster pump and the water treatment filter.

10. The full-featured marine development system of any one of claims 1 to 7, wherein the natural gas dehydration module comprises a gas-liquid separator, a triethylene glycol absorber, and a triethylene glycol regeneration system;

the inlet of the gas-liquid separator is used for receiving natural gas to be dehydrated, the outlet of the gas-liquid separator is connected with the first inlet of the triethylene glycol absorption tower, the triethylene glycol absorption tower is provided with a first outlet and a second outlet, and the first outlet of the triethylene glycol absorption tower is used for outputting the treated natural gas to the outside;

The second outlet of the triethylene glycol absorber is connected to the inlet of the triethylene glycol regeneration system, and the outlet of the triethylene glycol regeneration system is connected to the second inlet of the triethylene glycol absorber.