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190 results about "Offshore oil and gas" patented technology

Hydrometeorological early warning method for offshore oil and gas platform

The invention provides a hydro meteorology early warning method for an offshore oil and gas platform, and belongs to the technical field of offshore hydro meteorology. Extreme weather events are identified by adopting minimum probability abnormal event identification vectors to match abnormal characteristic parameters, and abnormal signal characteristic parameters are input into an ocean dynamics prediction model to calculate real-time sea condition parameters; calling a multi-temporal-spatial-scale early warning fusion matrix to combine with a wavelet decomposition technology and a recurrent neural network to realize multi-scale information integration, analyzing an environmental parameter change trend through a sea condition jump identification model and triggering an emergency response, dynamically adjusting system parameters according to a stability evaluation index vector, and optimizing prediction precision by adopting an early warning residual value compensation matrix. And finally, multi-level early warning information is generated and a real-time early warning notification is sent to an operator, so that the technical problem of insufficient early warning precision of an offshore oil and gas platform hydro meteorology early warning system in multi-spatio-temporal scale data fusion processing is solved.
Owner:BEIHAI FORECASTING CENT OF STATE OCEANIC ADMINISTRATION ((QINGDAO MARINE FORECASTING STATION OF STATE OCEANIC ADMINISTRATION) (QINGDAO MARINE ENVIRONMENT MONITORING CENT OF STATE OCEANIC ADMINISTRATION))

Automatic early warning method for sudden weather in target area

The invention provides an automatic early warning method for sudden weather in a target area, which belongs to the technical field of weather early warning, and comprises the following steps of: establishing a primary dense matrix by adopting adaptive filtering processing and a frequency domain signal separation technology, and generating a secondary dense matrix by applying a marine meteorological recognition model of a spiral progressive network structure; a dynamic statistical equation is used to calculate the physical coupling relationship of each parameter to establish a multi-scale weather process balance matrix, a maximum flow and minimum cut algorithm is used to optimize a weather system coupling relationship network to calculate a coupling degree matrix, and a dynamic threshold adjustment mechanism is established according to coupling strength parameters to adjust the early warning detection frequency. And based on a comparison result of the coupling degree moment order maximum characteristic value and a preset risk threshold value, establishing a grading early warning system and outputting a corresponding early warning signal to control an offshore oil and gas platform emergency response system. The technical problem that a multi-time scale weather process coupling relationship cannot be effectively processed is solved.
Owner:BEIHAI FORECASTING CENT OF STATE OCEANIC ADMINISTRATION ((QINGDAO MARINE FORECASTING STATION OF STATE OCEANIC ADMINISTRATION) (QINGDAO MARINE ENVIRONMENT MONITORING CENT OF STATE OCEANIC ADMINISTRATION))

Multi-energy cooperation and monitoring platform for offshore oil and gas development

The invention discloses a multi-energy coordination and monitoring platform for offshore oil and gas development, which relates to the technical field of multi-energy coordination and comprises a floating platform main body, and a solar power generation array (1), a sub power generation system (2), a main power generation system (3) and a water turbine cross beam (4) which are positioned on the floating platform main body, the floating platform main body adopts a hexagonal modular structure; the solar power generation array (1) comprises a plurality of monocrystalline silicon photovoltaic panels which are uniformly distributed on the floating platform main body; the sub power generation systems (2) are positioned at six vertexes of the floating platform main body; the main power generation system (3) is located in the center of the floating type platform body. And the water turbine cross beams (4) are uniformly distributed on the periphery of the floating platform main body. By comprehensively utilizing renewable energy sources such as solar energy, wind energy, wave energy and ocean current energy, stable and sustainable energy supply can be provided for the offshore oil and gas platform, and various pain points of a traditional energy supply mode are overcome.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Marine oil and gas equipment data monitoring method and system based on enhanced graph learning

The invention relates to the technical field of marine environment monitoring, in particular to a marine oil and gas equipment data monitoring method and system based on enhanced graph learning. The method comprises the following steps: carrying out preprocessing and textualization conversion on original node attributes of a dynamic network structure chart; analyzing the converted dynamic network structure chart by using a large language model (LLM); feature extraction is carried out from the semantic embedding side and the structure embedding side; performing semantic embedding and structure embedding feature fusion by using a multi-head attention mechanism; downstream tasks are executed based on fusion embedding, and data monitoring is achieved. The LLM-GNN collaborative optimization system provided by the invention realizes the intelligent breakthrough of data monitoring of the offshore oil and gas system.
Owner:YANTAI UNIV

Titanium alloy plate and preparation method thereof

ActiveCN120366616AManufactured materialIngot
The invention relates to the technical field of titanium alloy processing, in particular to a titanium alloy plate and a preparation method thereof.The titanium alloy plate is composed of, by mass, 2.5%-4.0% of Al, 2.0%-4.0% of Sn, 0.1%-0.3% of Fe, 0.02%-0.09% of O and the balance Ti and other impurity elements. According to the method, raw materials are mixed and then subjected to electrode pressing, electrode welding and vacuum consumable smelting in sequence, and a titanium alloy cast ingot is obtained; a titanium alloy cast ingot is sequentially subjected to single-phase region cogging and two-phase region repeated upsetting and drawing forging to obtain a forged plate blank, then the forged plate blank is machined to obtain a finished plate blank, then one-heating-number rolling deformation is conducted to obtain a hot-rolled plate, and finally annealing heat treatment and surface treatment are conducted to obtain the titanium alloy plate. The titanium alloy plate has the characteristics of moderate strength and high toughness, and can meet the strict service requirements of marine oil and gas exploration equipment under high-pressure load and dynamic working conditions.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Control method for throttling valve of gathering and transportation vertical pipe system of offshore oil and gas platform

The invention relates to the technical field of flow safety guarantee of offshore oil and gas fields, and discloses a control method for a throttle valve of a gathering and transportation riser system of an offshore oil and gas platform, which comprises the following steps: acquiring the average gas phase flow and the average liquid phase flow of a riser in the gathering and transportation riser system of the offshore oil and gas platform during a serious slug flow period; target pressure drop values of the two ends of the throttling valve of the stand pipe under the standard working condition are obtained; according to the average gas phase flow and the average liquid phase flow, the valve local resistance coefficient when the pressure drop at the two ends of the throttling valve is controlled to reach the target pressure drop value during the serious slug flow period of the vertical pipe is determined, and the valve flow coefficient corresponding to the valve local resistance coefficient is determined; wherein the valve local resistance coefficient is used for indicating the valve resistance when the throttle valve is controlled, and the valve flow coefficient is used for indicating the flow capacity of the throttle valve; and the target opening degree of the throttling valve is determined through the valve flow coefficient, and the throttling valve is controlled to be adjusted to the target opening degree so as to eliminate the serious slug flow.
Owner:CHINA NAT OFFSHORE OIL CORP +2

Mud line suspension system suitable for high-temperature and high-pressure environment

The utility model relates to the field of offshore oil and gas drilling, and discloses a mud line suspension system suitable for a high-temperature and high-pressure environment, an outer-layer casing hanger body is fixed on a riser through a first seating shoulder, a middle-layer casing hanger body is fixed on the outer-layer casing hanger body through a second seating shoulder, and the middle-layer casing hanger body is fixed on the riser through a second seating shoulder. The inner-layer casing hanger body is fixed on the middle-layer casing hanger body through a ratchet-shaped buckle; the upper portion of the outer-layer casing hanger body, the upper portion of the middle-layer casing hanger body and a lowering tool are sealed through a metal coating and a metal sealing ring, and the upper portion of the inner-layer casing hanger body and a lowering tool are sealed through an arc-shaped conical surface double-V metal sealing structure. Through reasonable structural layout, sealing arrangement, material selection and thread screwing length, the mud line suspension system can be well suitable for a high-temperature and high-pressure harsh environment, and the overall strength and the connection reliability are effectively improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

System connector suitable for offshore oil and gas underwater production

The invention relates to the technical field of connectors, and provides a system connector suitable for offshore oil and gas underwater production, the system connector comprises a mounting body and a connecting body, butt joint parts are arranged on the peripheral walls of the ends, close to each other, of two connected pipelines in a protruding mode, a sealing gap is formed between the two butt joint parts, and a sealing ring is embedded in the sealing gap; the two installation bodies are arranged corresponding to the two pipelines, each installation body is arranged on the peripheral wall of the corresponding pipeline in a sleeving mode, and the installation bodies are located on the sides, away from the sealing gaps, of the butt joint parts of the corresponding pipelines. The connecting body is arranged on the peripheral walls of the two mounting bodies in a sleeving mode so as to connect the two mounting bodies in series. According to the system connector suitable for offshore oil and gas underwater production, the installation convenience and sealing performance of the connector can be improved.
Owner:SUZHOU LUOKELI TECH CO LTD

Network construction type hybrid energy storage regulation and control method and device for offshore oil and gas field power grid frequency support and wind power absorption

The invention relates to the field of offshore oil and gas platform energy storage regulation and control, and discloses a network construction type hybrid energy storage regulation and control method and device oriented to offshore oil and gas field power grid frequency support and wind power absorption, and a conveying chain type gravity energy storage device based on an offshore oil and gas platform. The invention discloses a network construction type hybrid energy storage regulation and control method for achieving offshore oil and gas field power grid frequency support and wind power absorption. A weight upper bin, a weight lower bin and a conveying chain system are included. The upper weight bin is built between an offshore oil and gas platform deck and the sea level, and the two ends of the upper weight bin are supported by means of the left platform jacket and the right platform jacket. The weight lower bin is built in a seabed space under the offshore oil and gas platform; the conveying chain system is installed in the built stroke channel and supported by means of the platform left guide pipe frame. And a battery energy storage device is also built on the offshore oil and gas platform deck. According to the method, dynamic stabilization and absorption of new energy fluctuation such as offshore wind power can be realized, and the utilization rate of ocean energy is improved.
Owner:CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1

Modular system for underwater exploitation and underwater storage of offshore oil and gas

The utility model discloses a modularized system for underwater exploitation and underwater storage of offshore oil and gas, belongs to the technical field of offshore oil and gas storage and output, and aims to solve the problem of high construction cost of an existing offshore oil storage and drainage device. The modularized system for underwater exploitation and underwater storage of the offshore oil and gas comprises an underwater exploitation module and an underwater storage module, the underwater storage module comprises an outer frame (1) and an oil storage bag (3), the outer frame (1) comprises a frame body (11) and a containing space (12), and the oil storage bag (3) is fixed in the containing space (12). The underwater storage module is built underwater, the cost of the outer frame and the oil storage bag is relatively low, meanwhile, safe storage and output of crude oil can be achieved, the oil field development problem is solved, the benefits of oil field development are guaranteed, and safe and efficient development of offshore oil is achieved.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Temperature-resistant polyacrylamide temporary plugging agent as well as preparation method and application thereof

The invention relates to the technical field of oil and gas exploitation, and particularly discloses a temperature-resistant polyacrylamide temporary plugging agent as well as a preparation method and application thereof. According to the temperature-resistant polyacrylamide temporary plugging agent disclosed by the invention, the acrylamide, the functional monomer, the organic bifunctional group and metal complexing type compound cross-linking agent, the acrylic acid grafted silicon dioxide-graphene composite material, the polylactic acid and other components are scientifically proportioned, so that the temperature resistance, the salt resistance, the mechanical property and the degradation controllability of the product are synergistically improved, and the temperature-resistant polyacrylamide temporary plugging agent can be used at high temperature (gt); the stable plugging effect is maintained in a high-salinity stratum (120 DEG C, 120 DEG C), reservoir damage can be reduced through controllable degradation of polylactic acid, meanwhile, the preparation process is simple and convenient, industrialization is easy, the preparation method is suitable for the development requirements of deep, ultra-deep and offshore oil and gas reservoirs, and the application prospect is wide.
Owner:HEBEI UNIV OF SCI & TECH

Flexible plugging agent for offshore oil and gas drilling fluid and preparation method and application thereof

The application provides a flexible plugging agent for offshore oil and gas drilling fluid and a preparation method and application thereof, and belongs to the technical field of offshore oil and gas drilling and production. The plugging agent is prepared from the following raw materials: styrene, N-phenylmaleimide, 2-acrylamido-2-methylpropanesulfonic acid, sodium p-styrenesulfonate, 2-methacryloyloxyethylphosphorylcholine, a crosslinking agent, an initiator, a hydrophilic emulsifier, an oleophilic emulsifier and water. The plugging agent has excellent structural stability, heat resistance, salt resistance and hydration stability, has good adaptability to a low-density drilling fluid system, has a flexible deformation capacity, can effectively enter a complex leakage passage to achieve effective plugging, and can maintain the integrity and stability of a plugging layer under drilling fluid circulation shearing, temperature fluctuation and complex downhole conditions, thereby having applicability in a high-temperature and high-pressure drilling environment.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Oil-gas separation device for offshore oil and gas engineering

The invention discloses an oil-gas separation device for offshore oil and gas engineering, and relates to the field of oil exploitation, the oil-gas separation device comprises a tank body used for providing a separation space, a settling tank is arranged in the tank body, and a sand discharge pipe is arranged on the settling tank; the sand discharging device further comprises a suction sand discharging mechanism, and the suction sand discharging mechanism is communicated with the sand discharging pipe and used for pumping sand in the settling tank out of the tank body. According to the oil-gas separation device for the offshore oil and gas engineering, the settling tank is arranged on the tank body, the sand discharging pipe is arranged on the settling tank, the sand discharging pipe is connected with the suction sand discharging mechanism, when sand discharging needs to be conducted on the tank body, the suction sand discharging mechanism is started, and the sand discharging pipe is started; on one hand, the sand discharging efficiency can be improved, and on the other hand, the sand discharging pipe can be prevented from being blocked as much as possible.
Owner:CHENGGONG GASOLINEEUM SCI & TECH DONGYING

An accurate finite element modeling method for the cross-section of a multi-layer and multi-material complex pipe and cable

An accurate finite element modeling method for the cross-section of a multi-layer and multi-material complex pipe and cable, belonging to the field of offshore oil and gas resource development. First, the cross-section of the pipe and cable to be modeled and analyzed is photographed in a vertical shooting manner to obtain the picture information of the pipe and cable cross-section; and color assignment processing is performed on each component of the pipe and cable cross-section to obtain a color picture. Secondly, after filtering the color picture, the relative position coordinate values of the pixel points at the structural boundary in the Cartesian coordinate system are obtained through a boundary extraction algorithm. Thirdly, the pixel coordinate values stored based on the Cartesian coordinate system are converted into pixel coordinate values in the polar coordinate system, so that the pixel coordinates can be extracted in a clockwise or counterclockwise form; the coordinate values of the pixel points of each color correspond to an Excel file, and four Excel files are obtained. Finally, using the data in the Excel file as the original data, the ABAQUS finite element analysis method is used for modeling. The present invention can accurately extract the geometric information of the structure and has good applicability and accuracy.
Owner:DALIAN UNIV OF TECH +1

Mobile enclosed wash system

This system was designed after many years of trying to resolve dirt and dust accumulation in confined areas on mobile and stationary equipment, and other types of plant equipment, including equipment of offshore oil and gas platforms, maritime vessels, and others, and more generally any kind of motorized or mechanical equipment with internal areas that accumulate dust and dirt. The areas where dust and dirt accumulation occur would normally only be accessible by removing major components. The initial installation of the wash system may be time consuming, however, may eliminate future risk exposure and manning. The system may be designed to utilize existing pressure washers and air systems. The supply manifold may be constructed from steel, hydraulic lines, pressure wash nozzles and angled fittings. The installer may assess areas of accumulation, directing the nozzles at the general area. Once the system has been installed, mechanical operators may easily attach the device to a pressure source. Quick connect fittings would be installed outside the machine, connecting pressurized water or air to the supply manifold.
Owner:G C MOBILE INNOVATION INC

Quantitative evaluation method and evaluation system for potential target of sea oil and gas field

PendingCN122088820AAchieve reasonable and effective evaluationReduce the risk of manual interventionInstrumentsConsistency testOffshore oil and gas
The embodiment of the invention provides a quantitative evaluation method and evaluation system for a potential target of a sea oil and gas field, and belongs to the field of geological exploration. The evaluation method comprises the following steps: determining a first assignment of each target evaluation parameter in a plurality of target evaluation parameters of the oil and gas field; determining a second assignment according to the target potential reserves of the oil and gas field; a weight coefficient of each target evaluation parameter is determined according to a relative importance judgment matrix among the multiple target evaluation parameters, and a consistency check value of the relative importance judgment matrix is smaller than a set value; and determining a target potential score value of the oil and gas field according to the first assignment, the second assignment and the weight coefficient. According to the method, the core evaluation elements and the weights occupied by the core evaluation elements can be objectively determined under the real background of the few-well condition on the sea, the hidden danger of manual intervention under a traditional method is reduced, the potential targets are reasonably and effectively evaluated, and finally the favorable trap targets of the sea area are screened out and sorted.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Marine oil and gas exploration well control manifold erosion rate prediction method

The invention discloses a method for predicting the erosion rate of a control manifold of an offshore oil and gas exploration well. The method comprises the following steps: constructing a support vector machine model; wherein the input parameters of the support vector machine model are the manifold diameter, the manifold bending angle, the fluid speed, the fluid density and the fluid viscosity, and the output parameter of the support vector machine is the maximum erosion rate of the well control manifold; optimizing penalty function coefficients and kernel function parameters of the support vector machine model by adopting a genetic algorithm to obtain an optimized support vector machine model; training the optimized support vector machine model to obtain a well control manifold erosion rate prediction model; and acquiring the manifold diameter, manifold bending angle, fluid velocity, fluid density and fluid viscosity of the to-be-predicted well control manifold, and inputting into the well control manifold erosion rate prediction model to obtain the maximum erosion rate of the to-be-predicted well control manifold. According to the well control manifold erosion rate prediction method provided by the invention, the maximum erosion rate of the well control manifold can be accurately predicted.
Owner:CHINA NAT OFFSHORE OIL CORP +1

A manufacturing process for riser joints of offshore oil and gas platforms

The present invention discloses a manufacturing process for a riser joint of an offshore oil and gas platform, relating to the technical field of preparation, including: the manufacturing process selects forgings with specific components, smelts them through an electric furnace or an oxygen converter, and conducts forging, isothermal annealing, final heat treatment, and mechanical property testing; the method for monitoring the isothermal annealing temperature includes: monitoring the temperature in the furnace cooling stage, calculating the isothermal trade-off value to determine the isothermal analysis point; constructing an isothermal gradient field, analyzing the temperature change, constructing an equivalent cooling temperature curve, and comparing it with the continuous cooling transformation curve of supercooled austenite; if the trend of the curve changes inconsistently, judge whether the current temperature is in the bainite stage, and if not, judge the regulation margin; if the regulation margin is insufficient, calculate the approximate time difference, regulate the temperature in stages, and improve the stability of the process.
Owner:SUZHOU LUOKELI TECH CO LTD

Intelligent early warning method and system for offshore fracturing sand blockage

The invention provides an intelligent early warning method and system for offshore fracturing sand blockage, and relates to the technical field of offshore oil and gas exploitation, and the method comprises the steps: collecting real-time data of offshore fracturing construction equipment; performing standardization processing on the data, and training PGNN and PINN models based on the processed data; storing the processed data in a regional database, and merging the processed data into a data lake; and the PGNN and PINN models are adopted to predict the construction pressure change in real time, and sand blocking early warning is carried out when the pressure prediction value is abnormal. The system comprises a data acquisition module, a data processing and model training module, a database establishment module and a sand blockage intelligent early warning module. According to the method, misjudgment and missed judgment caused by human factors are reduced, the scientificity of sand blockage judgment is improved, sand blockage early warning can be carried out in advance, a fracturing site can be helped to take measures in time, the site sand blockage risk and the operation cost are effectively reduced, and the construction safety is improved.
Owner:CNOOC ENERGY TECHNOLOGY & SERVICES LTD +2

System for preparing drilling fluid for oil and gas field by seawater extreme membrane concentration resource

PendingCN122647061ASaline waterReverse osmosis
The present application relates to a kind of seawater limit membrane concentration resource preparation oil and gas field drilling fluid system.The seawater membrane concentration resource preparation oil and gas field drilling fluid system includes: optional for the pretreatment unit of natural seawater is pretreated;Further carry out high rejection and low rejection reverse osmosis membrane concentration series connection type reverse osmosis membrane concentration unit, wherein, the rejection of high rejection reverse osmosis membrane to sodium chloride is above 99%;The rejection of low rejection reverse osmosis membrane to sodium chloride is 30% to 60%;Further carry out electrodialysis concentration electrodialysis unit, to obtain the concentrated brine with the salt concentration of 100 to 250 g / L, which can be used for offshore preparation offshore oil and gas field drilling fluid.
Owner:PEKING UNIV

Submarine Pipeline Sling Span Repair Robot

1. Name of the design product: Submarine pipeline span repair robot. 2. Use of the design product: Used for repairing the submarine pipeline span in offshore oil and gas fields. 3. Design key points of the design product: Lies in the shape. 4. Picture or photograph that best shows the design key points: Perspective view 1.
Owner:SHENZHEN DECHUANG UNDERWATER INTELLIGENT EQUIP CO LTD

Connector Assembly

A connector assembly 200 for connecting two pipe sections. The pipe sections may be used in offshore construction such as offshore oil and gas exploration and offshore wind turbine generators. First 201 and second 202 connector elements adjoin first and second pipes and are couplable together. A circumferential recess 204 is defined by the connector elements and a locking ring 203 fits in the recess 204 to lock the connector elements. Engaging elements 205 of the connector elements engage with the locking ring 203. Overlapping members 206, 207 of the connector elements form a lap joint when the connector elements are coupled. In one aspect, the engaging elements extend over the region of overlap of the overlapping members. In another aspect, there is a substantially consistent spacing between upper and lower profiles of the locking ring and upper and lower corner edge profiles of the recess. This may contribute to a reduction in stress and mitigate fatigue.
Owner:OIL STATES INDUSTRIES (UK) LTD

Anti-sloshing device and control method for oil-water separators on offshore platforms

This invention discloses an anti-sloshing device and its control method for an oil-water separator tank on an offshore platform, belonging to the field of offshore oil and gas development equipment. The device includes a tank body, a condition monitoring component (DVL flow meter and wave height meter), symmetrically arranged liftable wave generators, and a control unit. Based on the monitored fluid direction and wave height data, the control unit drives the wave generator on the same side as the flow direction to generate reverse waves with opposite propagation directions and matching wave heights, actively counteracting sloshing. This invention dynamically suppresses liquid sloshing through a closed-loop control system of "monitoring-analysis-reverse wave generation," significantly improving separation stability and efficiency while reducing structural load.
Owner:EAST CHINA UNIV OF SCI & TECH

Storage scheduling strategy of electricity-hydrogen coupling energy storage system for offshore oil and gas platform

The invention discloses a storage scheduling strategy of an electricity-hydrogen coupling energy storage system for an offshore oil and gas platform, and mainly solves the problems that the offshore wind power output power is influenced by weather, the load power is influenced by drilling operation, and the uncertainty and the randomness are very strong, so that the source load power is not matched, and the energy consumption is low. And offshore oil and gas operation equipment is damaged. The storage scheduling strategy depends on an electricity-hydrogen coupling energy storage system, and the storage state and the storage power of the energy storage system are adjusted by judging the output power of an offshore wind turbine and the load power of an oil-gas platform. According to the storage scheduling strategy, the dynamic balance of the source load power of the offshore oil and gas platform can be realized, and the safety problem caused by the volatility of offshore wind power and the uncertainty of the load power is solved; in addition, the flexibility and safety of an electric power system can be effectively improved, and large-scale and long-time storage of hydrogen energy green energy can be achieved.
Owner:CHENGDU TECH UNIV

Treatment device system and treatment method for drilling flowback fluid of offshore oil and gas drilling platform

The invention relates to a treatment device system and a treatment method for drilling flowback fluid of an offshore oil and gas drilling platform. The treatment device system comprises a pretreatment reaction pry, a vibrating screen rock debris separation pry, a solid-liquid centrifugal separation pry and an oil-water-solid three-phase separation pry which are sequentially connected in the flowing direction of feed liquid. The adjacent prying parts are in material connection through a pipeline and a control valve and are in position connection through a detachable connecting device; the vibrating screen rock debris separation pry is provided with a communicating pipeline in parallel, an inlet of the communicating pipeline is connected with an outlet of the pretreatment reaction pry, and an outlet of the communicating pipeline is connected with an inlet of the solid-liquid centrifugal separation pry. According to the device system provided by the invention, continuous treatment and up-to-standard discharge of the well drilling flowback waste liquid can be realized, the operation efficiency of a wellhead of an offshore platform is improved, and the treatment requirements of different liquid qualities are met.
Owner:SHANGHAI BRANCH CHINA OILFIELD SERVICES

Method for designing integrity of mechanical system of well control equipment in offshore oil and gas development

The present application belongs to the technical field of ocean engineering equipment, and particularly relates to a kind of integrity design method of ocean oil and gas development well control equipment mechanical system. The integrity design method realizes the guarantee of the whole life cycle working reliability of the ocean oil and gas development well control equipment by constructing the integrity index factor of the ocean oil and gas development well control equipment mechanical system integrating multi-source information, and balances the working reliability of each component in the whole life cycle. The integrity design method of the ocean oil and gas development well control equipment mechanical system comprises the following steps: obtaining the performance parameters of the key components of the ocean oil and gas development well control equipment mechanical system; calculating the performance parameters of the overall structure of the ocean oil and gas development well control equipment mechanical system; determining the working condition environmental parameters of the ocean oil and gas development well control equipment; calculating the time-varying reliability of the ocean oil and gas development well control equipment mechanical system; constructing the integrity index factor of the ocean oil and gas development well control equipment mechanical system; and completing the integrity optimization design.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

Method for predicting carbon emission of offshore oil and gas field

The invention discloses a carbon emission prediction method for an offshore oil and gas field, and the method comprises the steps: obtaining original data of the offshore oil and gas field, including productivity data, energy consumption data and oil and gas field types; preprocessing the obtained original data to obtain preprocessed data; on the basis of the preprocessed data, calculating the carbon emissions of a plurality of production links; according to a calculation result of the carbon emission, screening characteristic quantities by adopting a Pearson correlation analysis method; inputting the screened characteristic quantity into a BP neural network model, wherein the BP neural network model outputs a predicted value of carbon emission; and acquiring carbon satellite remote sensing data, and calibrating the predicted value of the carbon emission of the BP neural network model through a multi-scale fusion algorithm to obtain a calibrated predicted value of the carbon emission. According to the method and the system, the multi-source information such as the carbon satellite remote sensing data, the offshore oil and gas field data and the like is fused, and the multi-scale fusion algorithm is combined, so that high-precision and real-time dynamic prediction from the total area quantity to the single-platform emission is realized.
Owner:SOUTHWEST PETROLEUM UNIV

One-button starting system and starting method of multi-stage reciprocating compressor

The present invention relates to the field of offshore oil and gas extraction technology, and more specifically, to a one-button start system for a multi-stage reciprocating compressor and a method for starting the system. The one-button start system comprises a controller, a one-button start control unit, a positive pressure ventilation and fire and gas system detection unit, an external auxiliary system detection unit, an alarm unit, and a signal acquisition unit. The present invention overcomes the disadvantage of the prior art that multi-stage reciprocating compressors cannot be started with one button. By integrating the entire startup process of the multi-stage reciprocating compressor through sequential control, a highly automated, safe, and efficient startup solution is formed, which avoids the safety risks of manual startup, saves manpower, reduces labor costs, and also improves the production and operation efficiency of offshore oil and gas extraction platforms.
Owner:ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP

Low-carbon management method and system for offshore oil and gas engineering project

The invention discloses a low-carbon management method and system for an offshore oil and gas engineering project, and the method comprises the following steps: arranging engineering projects through serial numbers, carrying out the real-time collection and calculation of the carbon emission data of the sorted engineering projects, generating a low-carbon management decision through the combination of the carbon emission data, and carrying out the calculation of the low-carbon management decision. Judging whether the carbon emission data of the engineering project corresponding to the serial number is abnormal or not; working information of engineering projects with different serial numbers is communicated, a low-carbon management decision is promoted in a cross-department cooperation mode, and whether the low-carbon management decision is feasible or not is predicted in real time according to the cooperation promotion state; predicting whether the low-carbon management decision continuously meets the low-carbon management requirement or not according to the construction state and period of the engineering project of the corresponding sequence number, and early warning the feasibility of the construction state of the engineering project of the corresponding sequence number; and when the construction state of the engineering project with the corresponding sequence number is not feasible, the construction state and low-carbon management decision of the engineering project with the corresponding sequence number are adjusted in real time according to the game theory, and the low-carbon management which is full-process high-precision and can be cooperated and win-win is realized.
Owner:OFFSHORE OIL ENG CO LTD

Marine electric fracturing skid control system and control method thereof

The invention relates to the technical field of offshore oil and gas field electric fracturing equipment control, and discloses a marine electric fracturing skid control system which comprises a main controller. The main controller is connected with a man-machine interaction interface, a motor control module, an alarm module, a maintenance module, a signal calibration module, a pressure monitoring module, a fluid end lubrication control module, a displacement control module, a heater control module, a suction valve control module and a sound-light alarm module. The invention further discloses a control method of the marine electric fracturing skid control system. According to the marine electric fracturing sledge control system and the control method thereof, comprehensive, intelligent and efficient control over the marine electric fracturing sledge is achieved, the operation safety, reliability and efficiency are improved, the equipment damage risk and the operation difficulty are reduced, and the marine electric fracturing sledge control system and the control method are particularly suitable for fracturing operation in the complex offshore environment.
Owner:SJS LTD