144 results about "Gas industry" patented technology

The invention relates to the field of intelligent diagnosis of oil and gas field development, in particular to a fracturing wellhead device failure analysis method and system based on a large model and a knowledge graph. The system is helpful for solving the problem that the accuracy and timeliness of failure analysis and fault diagnosis of the fracturing wellhead device in the prior art are limited. The method comprises the steps of building a knowledge graph, setting a knowledge graph dynamic updating mechanism oriented to the fault evolution process, building an open source large model and introducing a closed loop feedback mechanism. According to the method, the large model, the knowledge graph and the RAG technology are applied to fracturing wellhead failure analysis, and the intelligent level of the oil and gas industry is remarkably improved; the problem that a large model is high in generalization but insufficient in specialty is optimized, and the accuracy of answer generation is improved.

The invention provides a tamper-proofing method and system for gas metering data, and relates to the technical field of gas metering data. The method comprises the steps of collecting core data; abnormal fluctuation values are detected, and abnormal state values are screened; extracting a core identification field, and establishing an association mapping relation; constructing a gas metering data association network; performing consistency verification to obtain suspected tampered data; evaluating the credibility of the suspected tampered data; and fusing the core data to form a gas metering full-amount data set of the target area, and marking suspected tampering data and tampering categories. Through full-process protection, multi-source association, intelligent grading and standard adaptation, the problems of difficult tampering identification, slow processing and high misjudgment rate of the gas metering data are effectively solved, the revenue loss is reduced for gas enterprises, the intelligent level of data management is improved, and the method has great significance in promoting digital transformation and safe development of the gas industry.

The invention discloses a gas-liquid two-phase flow measurement method based on a bent pipe and an acoustic emission technology, and belongs to the field of gas-liquid two-phase flow measurement. The method comprises the steps that the average liquid holdup HL of two-phase flow in a pipeline is measured, and the instantaneous speed Vc of a gas phase and a liquid phase passing through the 45-degree section of the bent pipe is calculated; identifying a gas-liquid two-phase flow pattern in the pipeline; taking the Vc, the HL, the apparent liquid velocity VSL and the apparent gas velocity VSG as variables, and adopting a dimensional analysis method to propose a correlation between the Vc and the VSL and between the HL and the VSL and between the VSL and the VSG according to different flow patterns; calculating an effective voltage value RMS of the acoustic emission signal, and establishing a correlation between the RMS and the VSL and VSG; fitting parameters in the correlation formula; newly collected Vc, HL and RMS are input into the fitted correlation formula, VSL and VSG are output, and therefore measurement of the gas-liquid two-phase flow is completed. Compared with a single-phase metering method after separation commonly used in the oil and gas industry, the device has the advantages of being simple in structure, low in measurement cost, capable of achieving real-time measurement, non-invasive and the like.

A system for emergency planning and response to an incident related to the oil and gas industry comprising one or more databases that store data of oil spills and trajectories models, real-time locations of emergency vehicles, H2S gas sensors, LEL gas sensors, and corrosion pumps real-time readings, real-time weather stations, gas wells cross sections drawings and locations of daily drilling rigs. The system further comprises ERP, satellite imagery or aerial photography, and AVL; one or more servers; an ERP system; an electronic display device; and a GIS. The GIS comprises a processing system, and a GIS map displayed by the electronic display device. The GIS map is configured to display a common operating visual of the incident to incident personnel as it unfolds and to locate the emergency vehicles near to the incident.

A process for removing a heavy metal, such as mercury (Hg), from thturboe surface of a component used in the oil and gas industry, such as a sampling bottle or piece of equipment, is provided. The process includes applying an organic solvent, which includes iodine, to the surface of the component and then applying an aqueous solution to the surface. The organic solvent can also include toluene, xylene, a mixture thereof, or suitable organic solvents. The aqueous solution can consist of anions that form a soluble complex with the heavy metal, such as thiosulfate (S2O3)2-, iodide (I-), or a thiosulfate salt. According to another embodiment, the aqueous solution includes I2 and I-, and the process further includes applying an acid having a pKa ranging from -14 to 2 to the surface followed by deionized water.

The invention relates to the oil and gas industry, and more particularly to multi-layered reinforced polymeric pipes and methods for inspecting same, which can be used for collecting and transporting oil, water, gas and chemical reagents. The technical result of the claimed invention is a pipe structure and a method for inspecting same which provide improved operational reliability and an increased working life and make it possible to inspect the technical condition of the pipe during use. A reinforced polymeric pipe comprises a reinforcing layer and an external polymeric casing, which are applied consecutively to the outer surface of a polymeric pipe, wherein the reinforcing layer is formed of consecutively helically wound multi-layered rovings.

The invention relates to the oil and gas industry, and more particularly to multi-layered reinforced polymeric pipes and methods for inspecting same, which can be used for collecting and transporting oil, water, gas and chemical reagents. The technical result of the claimed invention is a pipe structure and a method for inspecting same which provide improved operational reliability and an increased working life and make it possible to inspect the technical condition of the pipe during use. A reinforced polymeric pipe comprises a reinforcing layer and an external polymeric casing, which are applied consecutively to the outer surface of a polymeric pipe, wherein the reinforcing layer is formed of consecutively helically wound multi-layered rovings.

Techniques for training a global model for use at a host of oilfield application sites based on raw data obtained from the application sites without direct exposure of the data to the global model. The techniques include developing and distributing a global model with a predetermined set of parameter weights. The model is then locally employed at each application site by a local computer which maintains the integrity of the acquired data during performance of the oilfield application. The data is used to update the parameter weights based on real-time circumstances. Thus, the parameter weights may be transmitted to the centralized computer for updating of the global model. Further, the updated global model may continue to direct other applications and the process continued in a beneficial feedback loop manner.

This invention relates to a subsea actuator with visual position indicators and associated methods for subsea energy infrastructure, such as in the oil and gas industry. The actuator may include a housing with a window, an actuation member, and a drive mechanism that moves the actuation member between at least two positions. The invention also relates to a method that involves providing a housing with a window, connecting the actuation member to a drive mechanism, and indicating the position of the actuation member through the window. This visual inspection can be performed directly or via a camera, even in the event of a power failure, using a passive, unpowered indicator. The indication can be displayed on an ROV panel, ensuring reliable remote monitoring and operation of the subsea actuator.

Disclosed herein are methods for controlling iron sulfide associated with a wellbore, downhole formation, reservoir or well, or infrastructure or equipment used in the extraction, production, processing, transportation, storage or disposal of a fluid, such as in pipelines and other infrastructure or equipment used in the oil and gas industries, as well as many other industries.

The invention discloses a gas industry user side pressure remote alarm monitoring system, particularly relates to the technical field of gas pressure remote alarm monitoring, and is used for solving the problem that a fault position cannot be accurately positioned when an existing gas pressure alarm system is triggered based on a fixed threshold value. A pressure time sequence is formed by collecting pressure data of a plurality of monitoring nodes in a gas pipe network in real time, when the pressure data of any monitoring node exceeds a preset threshold value, the corresponding node is identified as an abnormal node, and an abnormal triggering moment is obtained; analyzing pressure imbalance directivity characteristics between the abnormal node and each associated node in a preset time window based on the abnormal triggering moment, and cooperatively analyzing pressure time sequences of the abnormal node and each associated node to identify a fluctuation event with time sequence relevance, and analyzing a waveform distortion rule generated during propagation of the fluctuation event to construct a propagation path of the fluctuation event in a pipe network, and determining a fault position in combination with the pressure unbalance directivity characteristic and the propagation path of the fluctuation event to realize accurate positioning.

The invention discloses an underground temperature and pressure monitoring system and method, a storage medium and an electronic device, and the system comprises an optical fiber sensor, a signal transmission optical cable, and a demodulator. Wherein the optical fiber sensor is deployed at a preset underground position and is used for monitoring underground environmental parameters, and the environmental parameters at least comprise a pressure parameter and a temperature parameter; wherein the signal transmission optical cable is arranged between the optical fiber sensor and the demodulator and is used for transmitting environmental parameters to the demodulator; wherein the demodulator is used for analyzing the environmental parameters received from the signal transmission optical cable into monitoring data corresponding to the environmental parameters, and the monitoring data at least comprises readable pressure values corresponding to the pressure parameters and readable temperature values corresponding to the temperature parameters. The problem that in the petroleum and natural gas industry, monitoring equipment adopted in a traditional downhole operation monitoring scheme has the defects of poor reliability, high maintenance cost and the like, and consequently the traditional downhole operation monitoring scheme has limitation is solved.

The application discloses a method for water plugging of a water-containing reservoir by phase change. The method comprises the following steps: according to engineering requirements, the type of temperature-sensitive water plugging material used in a water-containing target well is selected; the amount of a preflush is determined according to reservoir data and well basic data; the distance between the water plugging material-displacement fluid interface and the wellbore is determined according to the direction of water in the target well; the amount of displacement fluid is determined according to the distance between the position of the water plugging material-displacement fluid interface and the wellbore, the volume of the wellbore and the filtration of the displacement fluid to the formation; the plugging length and the amount of water plugging material are determined in combination with the early liquid production data of the target well, the fracturing reconstruction data and the water plugging demand of the target well. According to the determined amounts of the preflush, the water plugging material and the displacement fluid, the preflush, the water plugging material and the displacement fluid are injected into the target well in sequence, and well shut-in is performed for a preset time length, and then flowback is performed. The application provides guidance for inverse temperature phase change water plugging design and construction, expands the application of water plugging materials in the oil and gas industry and improves the development efficiency of oil and gas reservoirs.

This invention relates to the field of core drilling technology in the oil and gas industry, and discloses a continuous coring apparatus. The continuous coring apparatus includes an outer cylinder with connectors and a coring drill bit connected to its upper and lower ends, respectively. The outer cylinder contains a linear motion mechanism and multiple nested inner coring cylinders. The lower end of the outermost inner coring cylinder extends into the coring drill bit. Between adjacent inner coring cylinders, the linear motion mechanism drives the inner inner coring cylinder to move axially along the outer inner coring cylinder. This invention enables continuous coring with a single-cylinder coring operation footage of 20-30 meters or more, improving efficiency by at least 2-3 times compared to existing processes, significantly saving drilling costs and increasing coring efficiency.

The invention discloses an energy-saving recovery device and method for a liquid nitrogen storage tank, and relates to the technical field of gas industry, the energy-saving recovery device comprises a tank body, and the tank body is provided with a gas inlet pipe and a gas outlet pipe; the supporting plate is fixedly mounted in the tank body, and a groove is formed in the top of the supporting plate; the cover plate is arranged at the top of the tank body, and the cover plate is fixedly connected with the tank body through screws; the aluminum plate is fixedly installed at the bottom of the cover plate, and the aluminum plate is arranged to be in an arc shape; the heating round pipe is fixedly mounted on the surface of the aluminum plate, and the heating round pipe is used for heating gas; the hollow plate is fixedly mounted at the bottom of the aluminum plate; the nitrogen is uniformly heated through the aluminum plate, and the low-temperature nitrogen is prevented from condensing ice crystals in pores of the filter plate, so that the efficient permeability and the filtering performance of the filter plate are maintained.

The application provides a gas intelligent customer service response method, and relates to the technical field of gas intelligent customer service, and comprises the following steps: receiving a query request input by a user, retrieving structured data and / or unstructured data corresponding to the query request from a gas industry knowledge base, and generating retrieval enhanced data; the gas industry knowledge base comprises gas user information, gas equipment information, gas safety specifications and operation processes; based on the query request and the retrieval enhanced data, a corresponding natural language reply is generated, and the natural language reply is output to a user terminal. The application retrieves the gas industry knowledge base, including safety specifications, equipment information and operation processes, converts structured and unstructured knowledge into retrieval enhanced data, realizes deep integration of the knowledge base, solves the problem of inconsistent decision-making caused by the dependence on manual experience reply after the existing system reads the query request, and realizes machine intelligent response.

This invention relates to multiphase suspensions of at least one synthetic water-soluble polymer with a weight-average molecular weight greater than or equal to 1 million Daltons. The invention also relates to the use of such multiphase suspensions in industrial water treatment, municipal water treatment, enhanced oil recovery in mineral deposits, hydraulic fracturing, mining wastewater treatment, drilling operations in civil engineering, drilling operations in the petroleum industry, drilling operations in the natural gas industry, paper or paperboard manufacturing, agriculture, textiles, detergents, or cosmetics.

An apparatus for use in the oil and gas industry for installation of drilling and production liners and sub-sea casing strings into a borehole through a drilling fluid on a workstring using a running tool with the benefits of surge pressure reduction is disclosed. In an embodiment, a convertible diverter device has a housing with diverting flow path which diverts fluid from its axial passageway to the annular space outside the convertible diverter device, and a closing sleeve, residing within the housing, the closing sleeve having a diverting position and a closed position. In the diverting position, the diverting flow path is not blocked by the closing sleeve, and in the closed position the closing sleeve sealingly blocks the diverting flow path, so only the axial passageway through the housing is accessible for passage of fluid and tools. The closing sleeve is shifted by use of a frangible activation seat, in combination with an activation plug, whereby the frangible activation seat is pulverized after the closing sleeve converts to the closed position. Thereby, the axial passageway is left with an effective internal diameter that may be equal to the internal diameter of the closing sleeve, which may ensure safe passage of fluids and cementing plugs through the converted diverter during casing cementing operations.

The present disclosure relates to systems and methods for inventory management in the oil and gas industry. The systems and methods automate the inventory tracking process and provide a real time status of inventory. The systems and methods analyze the data of the inventory to generate insights of the inventory and provide recommended actions for the inventory. The systems and methods provide an interactive user interface that allows users to provide requests relating to inventory and display insights of the inventory.

The present application belongs to the field of drilling fluid performance testing technology in the oil and gas industry, and relates to a simulation wellbore filtration loss measuring and filter cake evaluating device and a test method thereof. The simulation wellbore filtration loss measuring and filter cake evaluating device is composed of a base, a simulation wellbore outer tube, a supporting mechanism, a laser sensor, a laser sensor controller, a simulation wellbore inner tube, a driving mechanism, a liquid storage mechanism, a pressurizing mechanism and a heating mechanism. The use of the present application can reflect the dynamic filtration loss of the drilling fluid and test the filter cake erosion resistance for evaluating the filter cake quality. The simulation wellbore outer tube of the present application is made of transparent material resistant to high temperature and high pressure, and the filtration loss of the drilling fluid, the formation and destruction process and morphology of the filter cake under the conditions of fluid flow, nozzle injection, simulation wellbore inner tube and inner tube coupling agitation can be observed by visual observation. The present application has high simulation degree, simple operation, stable performance and strong reliability.

The invention discloses an efficient sedimentation and recycling process based on germanium dioxide in hydrogen peroxide tail gas absorption liquid and application, and belongs to the technical field of industrial waste gas treatment and scattered metal recycling in the special gas industry. The process comprises the following steps: carrying out standing separation on hydrogen peroxide tail gas absorption liquid, and carrying out synergistic regulation on a sedimentation layer through pH and a composite flocculant to realize efficient sedimentation of germanium dioxide; dehydrating the germanium dioxide concentrated phase to form a filter cake, and carrying out three-stage countercurrent washing and staged heating drying to obtain a crude germanium dioxide solid product; the filtrate and the settled supernate are subjected to primary pH regulation, secondary membrane separation and adsorption and three-stage closed-loop hydrogen peroxide replenishing three-stage purification systems, so that efficient cyclic utilization of hydrogen peroxide is realized; the germanium dioxide recovery rate reaches 99% or above, the hydrogen peroxide recovery rate reaches 95%, the process cost is reduced by 40% or above, and the method has the advantages of being simple in process, high in resource recovery rate and low in operation cost and is suitable for treatment and resource utilization of germanium-containing tail gas in production of semiconductors, photovoltaic materials and special gases.

Embodiments of a method of heat treating a coiled tube, in particular coiled tubes for use in the oil and gas industry, and pipes produced from the methods. In particular, embodiments of the heat treating method can utilized tempering without bending in order to avoid the generation of subsequent defects.

The utility model relates to an automatic diffusion ignition control system of a two-section gas producer, which belongs to the technical field of gas industry automation, and comprises a stock bin, a furnace body, a tar capture device and an evaporation heat exchange device, a coaling control system is arranged between the stock bin and the furnace body, the coaling control system is electrically connected with a distributed control system, and the distributed control system is electrically connected with the evaporation heat exchange device. A water supplementing device is installed at the end, away from the stock bin, of the furnace body, and a waste treatment system is arranged below the water supplementing device. The furnace body is connected with the tar capturing device through an upper-section pipeline, and a first diffusion ignition system is mounted on the upper-section pipeline; the furnace body is connected with the evaporation heat exchange device through a lower-section pipeline, and a second diffusion ignition system is mounted on the lower-section pipeline; the waste treatment system, the first diffusion ignition system and the second diffusion ignition system are all electrically connected with the distributed control system. The device has the effect of safely and conveniently carrying out diffusion ignition operation.

A corrosion inhibitor composition is described. The corrosion inhibitor composition includes 1 to 15 weight percentage (wt. %) of a polymer having at least one vinylpyrrolidone unit and at least one vinyl acetate unit, 0.1 to 1 wt. % of a thioamide having 2 to 20 carbon atoms, 1 to 5 wt. % of a thioalcohol having 2 to 8 carbon atoms, 1 to 3 wt. % of a surfactant, 0 to 15 wt. % of an aliphatic alcohol having 1 to 8 carbon atoms, 30 to 60 wt. % of a solvent, and each wt. % based on a total weight of the corrosion inhibitor composition. The present disclosure also describes a method for inhibiting corrosion of a metal with the corrosion inhibitor composition of the present disclosure.

The invention discloses a construction method of an oil and gas production large model platform, and relates to the technical field of oil and gas production intellectualization, and the method comprises the following steps: pre-constructing an oil and gas field knowledge graph, employing a BERT-BiLSTM-CRF model to carry out the automatic extraction of entities and attributes of massive unstructured engineering documents in oil and gas production, the extraction result is used for filling and perfecting the knowledge graph; a WellGPT model focusing on professional knowledge reasoning and a WellGPT-VL model focusing on view fusion understanding are constructed respectively. According to the method, on the basis of Qwen2.5 double bases and the dynamic weight hybrid LoRA technology based on intention recognition, efficient fine adjustment of a universal base model is achieved through precise classification of an intention recognition scheduling center and special training of an independent LoRA adapter, the generalization ability of the universal model is reserved, professional knowledge of the oil and gas industry is deeply injected, and the method has the advantages of being high in universality, high in practicability and high in practicability. And professional terms, physical laws and multi-modal data characteristics in the field can be accurately understood, and the professional adaptability and output reliability of the model in an oil and gas production scene are remarkably improved.

The invention relates to the field of neutralizing hydrogen sulphide and light mercaptans in oil industry fluids using chemical neutralizing reagents and is applicable in the oil and gas industry for cleaning and neutralizing oil transport tanks, pipelines, heat exchangers, fractionating and distillation columns, reactors, filters, settling tanks, gas scrubbers, air coolers, temporary storage tanks and any other receptacles and piping used in oil and gas processing. The proposed hydrogen sulphide scavenger for light and volatile petroleum products contains 95% ethyl alcohol solution, carbohydrazide, grade A 25% ammonia solution, GD anti-foaming agent, 3% hydrogen peroxide solution, concentrated soap (pH=14) and demineralized water in a given ratio of components. The present invention provides a composition that reduces or eliminates the presence of hydrogen sulphide in various fluids.

The completions process eliminates the Oil & Gas Industry's need for fracking and improves the production process. This process uses energy and electricity, instead of chemicals and hydraulic fracturing to create pathways (fractures) which enable the formation to deliver petroleum fluids to the surface. This process reduces our carbon footprint and eliminates the chemical dangers to the water table and threat of earthquakes.

The invention discloses a gas industry equipment data communication protocol based on an open source gap. The problem of heterogeneous communication protocols of natural gas transmission and distribution system equipment is solved through standardized design. The protocol is based on a natural gas process equipment physical model, a data structure and a communication interface are unified, and two modes of equipment direct connection with a platform and gateway indirect connection are supported. A UDP mechanism is adopted to realize equipment self-discovery and ad hoc network functions, and the communication efficiency is improved through a hierarchical transmission strategy. Characteristic functions of reporting when data change occurs, communication interruption data supplementary transmission, one-to-many synchronization of equipment configuration and the like are innovatively designed, and dynamic topology adjustment and load balancing are realized in combination with the Kwan Mongolian distributed soft bus technology. The protocol integrates the original security capability of the swan Mongolia, HUKS hierarchical key management and SM4-CCM encryption are adopted, the actually measured encryption and decryption throughput reaches 1Gbps, and an efficient and reliable communication solution is provided for a gas transmission and distribution system.

HIGH-POWER ULTRASOUND-ASSISTED TOOL APPLIED TO THE PREVENTION OF SCALE FORMATION IN PIPELINES AND EQUIPMENT IN THE OIL AND GAS INDUSTRY. The present invention relates to a tool applied to the prevention of scale formation through the phenomenon of cavitation produced in the fluid due to the action of ultrasound. Cavitation and agitation promote the acceleration of chemical reactions and in turn modify the way crystals evolve – size and shape – keeping them suspended in the fluid, thus hindering their incrustation in pipelines and equipment. The tool consists of a cavitation chamber, Langevin-type ultrasonic transducers positioned parallel to the pipeline by a transducer fixing system, which allows for easy attachment and replacement of the transducers, adequate energy transfer, and a reduction in the overall diameter of the device, enabling its installation in oil production wells with reduced diameters.High-power ultrasound-assisted tool applied to the prevention of fouling in pipelines and equipment in the oil and gas industry, characterized by comprising a cavitation chamber (1), ultrasonic transducers (2), transducer attachment (3), flanged joint (4) and threaded joint (5).