A method for classifying offshore oil platforms

Abstract

The application discloses a kind of offshore oil platform classification methods, it is related to marine oil engineering field, by identifying the basic data of the marine oil crude oil reservoir needing development and the characteristics of crude oil, determine the development plan;Again, the production allocation mode, development mode, processing capacity, system configuration and equipment configuration are identified, the deck size and platform scale of offshore oil platform are determined, the many uncertainties existing in the development of different different oil fields are solved, to the offshore oil platform classification method based on production water treatment capacity, realize with relatively certain engineering scheme, adapt to uncertain oilfield development demand, can speed up the construction speed of offshore oil platform and oilfield engineering, improve oilfield development efficiency, to achieve the goal of helping to promote marine oil green and efficient oilfield construction, realize sustained and efficient rapid exploitation.

Description

Technical Field

[0001] This invention relates to the field of offshore oil engineering, and more particularly, to a method for classifying offshore oil platforms. Background Technology

[0002] Offshore oil platforms are an important component of marine engineering and a primary means of offshore oil and gas development. Traditional offshore oil and gas engineering design often adopts a stand-alone design model, where the owner provides parameters such as the offshore oil platform engineering, design water depth, and structural type, and then a specific design is carried out. Each platform corresponds to a set of data, resulting in a long cycle.

[0003] Existing technologies have the following drawbacks: most offshore oil platforms have many similarities in terms of function and structure, requiring redesign work each time, resulting in a large amount of repetitive work and wasting a lot of human, financial and material resources. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a classification method for offshore oil platforms that can be applied to the development of various oil fields.

[0005] To address the aforementioned technical problems, this invention provides a method for classifying offshore oil platforms, applicable to the Bohai Sea, comprising the following steps:

[0006] S1: Identify the basic data and crude oil characteristics of offshore oil reservoirs that need to be developed;

[0007] S2: Based on the above basic data and crude oil characteristics, determine the development plan for the offshore oil platform;

[0008] S3: For the above development plan, identify the production allocation method and development model;

[0009] S4: Based on the above production allocation methods and development models, identify the processing capacity and system configuration of offshore oil platforms based on production water treatment capabilities;

[0010] S5: Identify the equipment configuration of the offshore oil platform based on the above processing capabilities;

[0011] S6: Determine the platform size of the offshore oil platform based on steps S1 to S5;

[0012] S7: Based on step S6, determine the deck dimensions of the offshore oil platform.

[0013] According to a preferred embodiment of the present invention, the basic data in step S1 includes the reserves, production capacity and location of crude oil reservoirs.

[0014] According to a preferred embodiment of the present invention, in step S1, the production capacity ranges from 800,000 tons / year to 3,000,000 tons / year.

[0015] According to a preferred embodiment of the present invention, in step S1, the crude oil characteristics include light oil, heavy oil, medium oil and extra-heavy oil.

[0016] According to a preferred embodiment of the present invention, in step S3, the drilling and workover plan and the number of wells should also be identified.

[0017] According to a preferred embodiment of the present invention, in step S3, the development mode includes a full processing flow mode and a half processing flow mode.

[0018] According to a preferred embodiment of the present invention, the full processing flow includes the following steps: First, the fluid delivered to the platform is mixed with the logistics from surrounding wellhead platforms, and then undergoes heat exchange with high-temperature crude oil from an electric dehydrator via a crude oil heat exchanger. It then enters a primary heater for further heating to the operating temperature required by the primary separator before entering the primary separator for preliminary gas-water-oil three-phase separation. Second, the gas separated by the primary separator goes to the fuel gas system, the separated water enters the production water treatment system, and the separated water-containing crude oil enters a secondary crude oil heater, where it is heated to the operating temperature required by the secondary separator before entering the secondary separation process. The gas is further dehydrated in the secondary separator; then, the gas separated by the secondary separator enters the fuel gas system, the separated production water is pressurized by the production water booster pump and enters the production water treatment system, the separated water-containing crude oil is pressurized by the electrostatic dehydration booster pump and enters the tertiary heater to be heated to the operating temperature required by the electrostatic dehydrator, and then enters the electrostatic dehydrator; after that, the production water separated by the electrostatic dehydrator enters the production water treatment system, the qualified crude oil after electrostatic dehydration goes to the crude oil heat exchanger to exchange heat with the water-containing crude oil, and the crude oil after heat exchange enters the crude oil buffer tank; finally, after being pressurized to the export pressure by the crude oil export pump, it is transported to the platform, FPSO or onshore terminal through the subsea pipeline.

[0019] According to a preferred embodiment of the present invention, the semi-processing flow mode includes the following steps: First, the fluid delivered to the platform is mixed with the fluid from the surrounding wellhead platform, and then heated by a primary heater to the operating temperature required by the primary separator, and enters the primary separator for preliminary gas, water and oil three-phase separation; finally, the gas separated by the primary separator goes to the fuel gas system, the separated water enters the production water treatment system, and the separated water-containing crude oil is pumped through an external pump and piped to downstream facilities for treatment.

[0020] According to a preferred embodiment of the present invention, in step S4, the processing demand of the offshore oil platform with the water treatment capacity ranges from 10,000 cubic meters / day to 50,000 cubic meters / day.

[0021] According to a preferred embodiment of the present invention, in step S5, the equipment configuration includes equipment facilities for a crude oil semi-processing process, equipment facilities for a crude oil full-processing process, and equipment facilities for a water treatment process.

[0022] The technical advantages of this invention are as follows:

[0023] 1. This invention provides a method for classifying offshore oil platforms. By identifying the basic data and crude oil characteristics of the offshore oil reservoirs to be developed, a development plan is determined. Then, by identifying the production allocation method, development mode, processing capacity, system configuration, and equipment configuration, the deck size and platform scale of the offshore oil platform are determined. Based on the characteristics and research trends of offshore oil platforms in service in my country, and combined with the production and construction experience of the Bohai Oilfield over many years, this method achieves the beneficial effect of being applicable to the development of various oilfields and classifying offshore oil platforms.

[0024] 2. The present invention provides a method for classifying offshore oil platforms, which can adapt to the many uncertainties in the development of different oil fields at different times. By classifying offshore oil platforms based on production water treatment capacity, a relatively certain engineering plan can be adopted to meet the uncertain oil field development needs. This can accelerate the construction speed of offshore oil platforms and oil field engineering, improve oil field development efficiency, and help promote the construction of green and efficient offshore oil fields, so as to achieve the goal of continuous, efficient and rapid exploitation. Attached Figure Description

[0025] Figure 1 This is a flowchart of a method for classifying offshore oil platforms according to the present invention.

[0026] Figure reference numerals: 101-Reservoir; 201-Reserves; 202-Production capacity; 203-Location; 204-Crude oil characteristics; 401-Development plan; 501-Drilling and workover plan; 502-Production allocation method; 503-Development mode; 504-Number of wells; 601-Processing capacity; 602-System configuration; 701-Platform configuration based on production processing capacity; 702-Platform configuration based on crude oil processing capacity; 801-Deck dimensions; 802-Platform scale. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the invention.

[0028] like Figure 1 As shown, a method for classifying offshore oil platforms includes the following steps:

[0029] Step 1: Identify the reserves 201, production capacity 202, and location 203 of the offshore oil reservoir 101 to be developed;

[0030] Step 2: Identify the characteristics of the offshore oil crude oil to be developed (204);

[0031] Step 3: Identify Step 1 and Step 2 to determine Offshore Oil Platform Development Scheme 401;

[0032] Step 4: For the development scheme 401 identified in Step 3, identify the drilling and workover scheme 501, the number of wells 504, the production allocation method 502, and the development mode 503.

[0033] Step 5: For the production allocation method 502 identified in Step 4, identify the processing capacity 601 of the offshore oil platform;

[0034] Step Six: For the development mode 503 identified in Step Four, identify the offshore oil platform system configuration 602;

[0035] Step 7: For the processing capacity 601 identified in Step 5, identify the equipment configuration 701 based on the production water treatment capacity;

[0036] Step 8: Based on Steps 1 to 7, determine the deck size 801 and scale 802 of the offshore oil platform;

[0037] The offshore oil development area is limited to the Bohai Sea region; configuration 701, based on production water treatment capacity platform, is a fixed configuration; configuration 702, based on crude oil processing capacity platform, is a variable configuration; development mode 503 includes full-processing mode and semi-processing mode; crude oil characteristics 204 include light oil, heavy oil, medium oil, and extra-heavy oil; crude oil production capacity 202 ranges from 800,000 tons / year to 3,000,000 tons / year, including 850,000 tons / year, 1,250,000 tons / year, 1,850,000 tons / year, and 2,500,000 tons / year; the processing demand of the offshore oil platform with production water treatment capacity ranges from 10,000 cubic meters / day to 50,000 cubic meters / day, including 12,000 cubic meters / day, 24,000 cubic meters / day, 36,000 cubic meters / day, and 48,000 cubic meters / day.

[0038] The selection criteria include offshore oil processing platforms equipped with oil, gas, and water treatment systems and various supporting facilities, capable of processing crude oil suitable for the characteristics of offshore crude oil. Specifically, these include platforms capable of handling 12,000 cubic meters / day of production water with an annual crude oil production capacity of 850,000-1,850,000 tons; platforms capable of handling 24,000 cubic meters / day of production water with an annual crude oil production capacity of 1,250,000-2,500,000 tons; platforms capable of handling 36,000 cubic meters / day of production water with an annual crude oil production capacity of 1,250,000-2,500,000 tons; and platforms capable of handling 48,000 cubic meters / day of production water with an annual crude oil production capacity of 2,500,000 tons.

[0039] The equipment and facilities for the crude oil semi-processing process include: metering separator, metering heater, heat exchanger, primary heater, primary separator and external pump; the equipment and facilities for the water treatment process include: inclined plate oil separator, production wastewater flotation treatment device, production water buffer tank, walnut shell feed pump, walnut shell filter, dual media filter, water injection buffer tank, wastewater tank, wastewater pump and sludge tank.

[0040] The equipment and facilities for the entire crude oil processing flow include: metering separator, metering heater, heat exchanger, primary heater, primary separator, secondary separator, electrostatic desulfurization (ESD), crude oil buffer tank, secondary heater, ESD heater, ESD booster pump, production water booster pump, and external pump; the equipment and facilities for the water treatment flow include: inclined plate oil separator, production wastewater flotation treatment device, production water buffer tank, walnut shell feed pump, walnut shell filter, dual-media filter, water injection buffer tank, wastewater tank, wastewater pump, sludge oil tank, sludge oil pump, backwash pump, and water injection pump.

[0041] The following discussion focuses on medium-quality crude oil:

[0042] For medium-grade crude oil, the water treatment process includes equipment and facilities such as inclined plate oil separators, production wastewater flotation treatment devices, production water buffer tanks, walnut shell feed pumps, walnut shell filters, dual-media filters, water injection buffer tanks, wastewater tanks, wastewater pumps, and sludge tanks. The semi-processing process for medium-grade crude oil has a capacity range of 800,000-3,000,000 tons / year, depending on the crude oil production capacity, including 850,000 tons / year, 1,250,000 tons / year, 1,850,000 tons / year, and 2,500,000 tons / year. The full processing process for medium-grade crude oil includes metering separators, metering heaters, heat exchangers, primary heaters, primary separators, secondary separators, electrostatic desulfurization (ESD), crude oil buffer tanks, secondary heaters, ESD heaters, ESD booster pumps, production water booster pumps, and export pumps. The water treatment process for medium-grade crude oil includes equipment and facilities such as inclined plate oil separators, production wastewater flotation treatment units, production water buffer tanks, walnut shell feed pumps, walnut shell filters, dual-media filters, water injection buffer tanks, wastewater tanks, wastewater pumps, sludge tanks, sludge pumps, backwash pumps, and water injection pumps. The complete crude oil treatment process for medium-grade crude oil has a capacity range of 800,000 to 3,000,000 tons / year, depending on the crude oil production capacity, including 850,000 tons / year, 1,250,000 tons / year, 1,850,000 tons / year, and 2,500,000 tons / year.

[0043] The complete processing flow for medium-quality crude oil includes the following steps:

[0044] Step 1: All fluids delivered to the platform are mixed with the logistics from surrounding wellhead platforms through the production manifold, and then exchange heat with high-temperature crude oil from the electric dehydrator in the crude oil heat exchanger. After entering the primary heater, they are further heated to the operating temperature required by the primary separator, and then enter the primary separator for preliminary oil, gas and water three-phase separation.

[0045] Step 2: The gas separated by the primary separator goes to the fuel gas system, the separated water enters the production water treatment system, and the separated water-containing crude oil (the water content is determined according to the dehydration test report) enters the secondary crude oil heater. After being heated to the operating temperature required by the secondary separator, it enters the secondary separator for further dehydration.

[0046] Step 3: The gas separated by the secondary separator enters the fuel gas system, the separated production water is pressurized by the production water booster pump and then enters the production water treatment system, and the separated water-containing crude oil is pressurized by the electro-dehydration booster pump and then enters the tertiary heater to be heated to the operating temperature required by the electro-dehydrator before entering the electro-dehydrator.

[0047] Step 4: The production water separated by the electrostatic dehydrator enters the production water treatment system. The qualified crude oil (medium oil with water content ≤0.5%, heavy oil with water content ≤2%) after electrostatic dehydration goes to the crude oil heat exchanger to exchange heat with the water-containing crude oil. If necessary, a crude oil cooler can be set up to cool the qualified crude oil to meet the export requirements. The crude oil after heat exchange enters the crude oil buffer tank.

[0048] Step 5: After being pressurized to the export pressure by the crude oil export pump, it is transported to other platforms, FPSOs or onshore terminals through subsea pipelines.

[0049] The semi-processing process for medium-quality crude oil includes the following steps:

[0050] Step 1: All fluids delivered to the platform are mixed with the logistics from surrounding wellhead platforms through the production manifold, and then further heated by the primary heater to the operating temperature required by the primary separator before entering the primary separator for preliminary oil, gas and water three-phase separation.

[0051] Step 2: The gas separated by the primary separator goes to the fuel gas system, and the separated water enters the production water treatment system. The water-containing crude oil separated in the medium oil process is pumped through an external pipeline to the downstream facilities for further processing. In the heavy oil process, the water-containing crude oil separated from the primary separator enters the secondary separator after passing through the secondary heater, and then enters the secondary separator for further separation. After that, it enters the downstream facilities for processing through a subsea pipeline.

[0052] The following discussion focuses on heavy oil (heavy crude oil):

[0053] For heavy crude oil, the semi-processing process includes equipment and facilities such as metering separators, metering heaters, heat exchangers, primary heaters, primary separators, and external pumps. The water treatment process for heavy crude oil includes equipment and facilities such as inclined plate oil separators, production wastewater flotation treatment units, production water buffer tanks, walnut shell feed pumps, walnut shell filters, dual-media filters, water injection buffer tanks, wastewater tanks, wastewater pumps, sludge tanks, sludge pumps, backwash pumps, and water injection pumps. The capacity of the semi-processing process for heavy crude oil ranges from 800,000 to 3,000,000 tons / year, depending on the crude oil production capacity, including 850,000 tons / year, 1,250,000 tons / year, 1,850,000 tons / year, and 2,500,000 tons / year. The full processing process for heavy crude oil includes metering separators, metering heaters, heat exchangers, primary heaters, primary separators, secondary separators, electrostatic desulfurization (ESD), crude oil buffer tanks, secondary heaters, ESD heaters, ESD booster pumps, production water booster pumps, and external pumps. The water treatment process for heavy crude oil includes equipment and facilities such as inclined plate oil separators, production wastewater flotation treatment units, production water buffer tanks, walnut shell feed pumps, walnut shell filters, dual-media filters, water injection buffer tanks, wastewater tanks, wastewater pumps, sludge tanks, sludge pumps, backwash pumps, and water injection pumps. The complete crude oil treatment process for heavy crude oil has a capacity range of 800,000 to 3,000,000 tons / year, depending on the crude oil production capacity, including 850,000 tons / year, 1,250,000 tons / year, 1,850,000 tons / year, and 2,500,000 tons / year.

[0054] The complete processing flow for heavy crude oil includes the following steps:

[0055] Step 1: All fluids delivered to the platform are mixed with the logistics from surrounding wellhead platforms through the production manifold, and then exchange heat with high-temperature crude oil from the electric dehydrator in the crude oil heat exchanger. After entering the primary heater, they are further heated to the operating temperature required by the primary separator, and then enter the primary separator for preliminary oil, gas and water three-phase separation.

[0056] Step 2: The gas separated by the primary separator goes to the fuel gas system, the separated water enters the production water treatment system, and the separated water-containing crude oil (the water content is determined according to the dehydration test report) enters the secondary crude oil heater. After being heated to the operating temperature required by the secondary separator, it enters the secondary separator for further dehydration.

[0057] Step 3: The gas separated by the secondary separator enters the fuel gas system, the separated production water is pressurized by the production water booster pump and then enters the production water treatment system, and the separated water-containing crude oil is pressurized by the electro-dehydration booster pump and then enters the tertiary heater to be heated to the operating temperature required by the electro-dehydrator before entering the electro-dehydrator.

[0058] Step 4: The production water separated by the electrostatic dehydrator enters the production water treatment system. The qualified crude oil (medium oil with water content ≤0.5%, heavy oil with water content ≤2%) after electrostatic dehydration goes to the crude oil heat exchanger to exchange heat with the water-containing crude oil. If necessary, a crude oil cooler can be set up to cool the qualified crude oil to meet the export requirements. The crude oil after heat exchange enters the crude oil buffer tank.

[0059] Step 5: After being pressurized to the export pressure by the crude oil export pump, it is transported to other platforms, FPSOs or onshore terminals through subsea pipelines.

[0060] The semi-processing process for heavy crude oil includes the following steps:

[0061] Step 1: All fluids delivered to the platform are mixed with the logistics from surrounding wellhead platforms through the production manifold, and then further heated by the primary heater to the operating temperature required by the primary separator before entering the primary separator for preliminary oil, gas and water three-phase separation.

[0062] Step 2: The gas separated by the primary separator goes to the fuel gas system, and the separated water enters the production water treatment system. The water-containing crude oil separated in the medium oil process is pumped through an external pipeline to the downstream facilities for further processing. In the heavy oil process, the water-containing crude oil separated from the primary separator enters the secondary separator after passing through the secondary heater, and then enters the secondary separator for further separation. After that, it enters the downstream facilities for processing through a subsea pipeline.

[0063] The water treatment process includes the following steps:

[0064] Step 1: The water treatment system receives and processes the production wastewater separated from the crude oil processing system. After removing some of the crude oil from the water, it enters the water injection system for further processing and pressurization.

[0065] Step 2: The production wastewater from each stage of the separator first enters the inclined plate oil separator to remove larger crude oil particles, and then enters the production wastewater flotation treatment unit for further oil removal.

[0066] Step 3: The water enters the production water buffer tank, and the booster pump pumps the production water into the walnut shell filter for treatment.

[0067] A standardized design is implemented using a four-legged wellhead module with basic functionalities as the benchmark platform. Additional specific functions are designed as functional modules, while the combination of the benchmark platform and functional modules is considered holistically. Through this combination, a multi-functional four-legged wellhead platform can be achieved, widely applicable to the Bohai Oilfield development. One type of offshore oil platform includes an upper module and a lower jacket. The upper module comprises an upper deck, middle deck, lower deck, and working deck. The upper deck includes a crane, living quarters, freshwater equipment area, turbine and waste heat equipment area, oil spill prevention equipment area, chemical storage area, unloading area, and workover rig and equipment area. The middle deck houses electrical rooms, utility gas, instrument gas, chlorine equipment, deluge valve area, water treatment equipment area, fuel gas equipment area, oil treatment equipment area, unloading area, and chemical equipment. The upper deck is divided into a fire pump area and a wellhead area. The lower deck houses the fire pump equipment area, backwash water pump equipment area, water injection booster pump equipment area, seawater system equipment area, domestic sewage equipment area, water injection pump area, diesel and fire extinguishing pump room, gas compressor, water treatment equipment area, pump area, diesel equipment area, oil treatment equipment area, oil treatment closed-loop system, flare system equipment area, pigging area, and wellhead area. The working deck houses the open drainage system equipment area, heat medium system equipment area, sludge oil system equipment area, open drainage system equipment area, seawater pump area, diesel and fire extinguishing pump area, and wellhead area. Specifically, the jacket is fixedly connected to the upper module. The wellhead area also includes a well slot reserved for expanding production capacity. The crane can cover all wellheads in the wellhead area. There are access passages for personnel between the upper deck, middle deck, lower deck, and working deck.

[0068] The development of different oilfields involves numerous uncertainties. The classification method for offshore oil platforms based on their production water treatment capabilities aims to adapt to the uncertain development needs of oilfields with relatively fixed engineering solutions. If the platform scale and system configuration can cover the needs of new platforms but have a large margin, optimized design can be carried out in conjunction with the actual situation of specific project investment, construction period, and resources; alternatively, it can be applied directly, with the margin used for later oilfield adjustments.

[0069] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A method for classifying offshore oil platforms, which is suitable for Bohai Sea, characterized in that, It includes the following steps: S1: Identify the basic data and crude oil characteristics of offshore oil reservoirs that need to be developed; S2: Based on the above basic data and crude oil characteristics, determine the development plan for the offshore oil platform; S3: For the above development plan, identify the production allocation method and development model; S4: Based on the above production allocation methods and development models, identify the processing capacity and system configuration of offshore oil platforms based on production water treatment capabilities; S5: Identify the equipment configuration of the offshore oil platform based on the above processing capabilities; S6: Determine the platform size of the offshore oil platform based on steps S1 to S5; S7: Determine the deck dimensions of the offshore oil platform according to step S6; In step S3, the development mode includes a full processing flow mode and a half processing flow mode; The full-process mode includes the following steps: First, the fluid delivered to the platform is mixed with the logistics from surrounding wellhead platforms, then undergoes heat exchange with high-temperature crude oil from an electric dehydrator in a crude oil heat exchanger, before entering the primary heater for further heating to the operating temperature required by the primary separator. The primary separator then performs preliminary gas-water-oil three-phase separation. Second, the gas separated by the primary separator goes to the fuel gas system, the separated water enters the production water treatment system, and the separated water-containing crude oil enters the secondary crude oil heater, where it is heated to the operating temperature required by the secondary separator before entering the secondary separator for further processing. The process involves several steps: first, dehydration; then, the gas separated by the secondary separator enters the fuel gas system, the separated production water is pressurized by the production water booster pump and enters the production water treatment system, the separated water-containing crude oil is pressurized by the electrostatic dehydration booster pump and enters the tertiary heater to be heated to the operating temperature required by the electrostatic dehydrator, and then enters the electrostatic dehydrator; afterwards, the production water separated by the electrostatic dehydrator enters the production water treatment system, and the qualified crude oil after electrostatic dehydration goes to the crude oil heat exchanger to exchange heat with the water-containing crude oil, and the heat-exchanged crude oil enters the crude oil buffer tank; finally, after being pressurized to the export pressure by the crude oil export pump, it is transported to the platform, FPSO or onshore terminal through the subsea pipeline.

2. The method of claim 1, wherein, The basic data mentioned in step S1 includes the reserves, production capacity, and location of crude oil reservoirs.

3. The method of claim 2, wherein, In step S1, the capacity ranges from 800,000 tons / year to 3,000,000 tons / year.

4. The method of claim 1, wherein, In step S1, the crude oil characteristics include light oil, heavy oil, medium oil, and extra-heavy oil.

5. The method of claim 1, wherein, In step S3, the drilling and workover plan and the number of wells should also be identified.

6. The method of claim 1, wherein, The semi-processing flow mode includes the following steps: First, the fluid delivered to the platform is mixed with the logistics from the surrounding wellhead platforms, and then heated by the primary heater to the operating temperature required by the primary separator. The mixture then enters the primary separator for preliminary three-phase separation of gas, water and oil. Finally, the gas separated by the primary separator goes to the fuel gas system, the separated water enters the production water treatment system, and the separated water-containing crude oil is pumped through a subsea pipeline to downstream facilities for processing.

7. The method of claim 1, wherein, In step S4, the processing demand of the offshore oil platform with the water treatment capacity ranges from 10,000 cubic meters / day to 50,000 cubic meters / day.

8. The method for classifying offshore oil platforms according to claim 1, characterized in that, In step S5, the equipment configuration includes equipment and facilities for the crude oil semi-processing process, equipment and facilities for the crude oil full-processing process, and equipment and facilities for the water treatment process.

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