57 results about "Reservoir monitoring" patented technology

Tubulars for monitoring subsurface reservoir characteristics in directed orientations. Elongated tubulars for permanent subsurface disposal are equipped with antennas adapted to transmit or receive electromagnetic energy. A tilted antenna is disposed within a groove on the tubular exterior. The groove includes a sealed opening to allow for passage of electromagnetic energy therethrough and the antenna is disposed within the groove in alignment with the opening such that the antenna is substantially perpendicular to the opening at the intersection. Methods for subsurface reservoir monitoring using the tubulars are also presented.

A system and method monitor a hydrocarbon reservoir for drainage in volumetric three dimensions. Monitoring between wells is imperative for optimum reservoir management and is achieved by mapping the hydrocarbon fluid pathways in a producing reservoir. Unlike conventional 4D or time-lapse reflection seismic imaging systems that use a controlled active seismic source and records reflected seismic energy at receivers, the system and method exploit the minute vibrations, or micro-earthquakes generated in the reservoir layers that are induced by fluid movement. These microseisms are detected as the fluids move in the reservoir.

The system and method for real-time monitoring of a hydrocarbon reservoir (4) during extraction include an electro-magnetic source assembly (16) for transmitting a first plurality of electromagnetic fields. A plurality of seafloor antennae (30a–30d) is distributed over an area of the seafloor (8) corresponding to the reservoir (4), where each antenna (30a–30d) comprises recieves electrode array (30a–30d) adapted for receiving a second plurality of electromagnetic fields and generating signals corresponding to the detected fields. A data logging processor receives the signals over time and stores data corresponding to the signals. Different combinations of the receiver electrode are used in combination with transmitter antennae for measuring vertical, radial and / or azimuthal fields. Transmission and detection of the fields can be performed continuously or at timed intervals during hydrocarbon extraction to estimate the rate and efficiency of extraction.

A seismic communication system suitable to communicate information to an underground device is disclosed. A seismic source (preferably on or near the surface of the earth) generates a timed series of seismic shots. These shots are then detected by one or more seismic receivers underground. Depending on the timing of these seismic shots, and the communication protocol selected, various information may be communicated to the underground target. Such a system is particularly desirable when the underground device includes a perforating gun because the perforating gun may not only be remotely detonated without the drawbacks of previous methods, but the detonation of the perforating gun charges may also be detected, giving an indication whether substantially fewer than all of the explosive charges detonated. The seismic communication system may also be used, as a component within a multi-functional well seismic system, for seismic reservoir monitoring or seismic monitoring of well operations.

A transient electromagnetic borehole system uses an arrangement of sensors deployed in a borehole for reservoir monitoring. Non-conductive casing sections may be used along with an efficient transmitter configured to provide measurements up to 300 m from the borehole. By using multiple receivers, the method can also be used without nonconductive casing.

Reservoir monitoring system. At least some of the illustrative embodiments are methods comprising installing a hydrocarbon reservoir monitoring system in a marine environment. The installing may be by: placing a base unit at the sea floor, the base unit communicatively coupled to a computer system at the surface, the communicative coupling by way of an umbilical cable; mechanically coupling a first termination module to the base unit, the termination module coupled to a first sensor cable; and communicatively coupling the first sensor cable to the umbilical cable.

A seismic communication system suitable to communicate information to an underground device is disclosed. A seismic source (preferably on or near the surface of the earth) generates a timed series of seismic shots. These shots are then detected by one or more seismic receivers underground. Depending on the timing of these seismic shots, and the communication protocol selected, various information may be communicated to the underground target. Such a system is particularly desirable when the underground device includes a perforating gun because the perforating gun may not only be remotely detonated without the drawbacks of previous methods, but the detonation of the perforating gun charges may also be detected, giving an indication whether substantially fewer than all of the explosive charges detonated. The seismic communication system may also be used, as a component within a multi-functional well seismic system, for seismic reservoir monitoring or seismic monitoring of well operations.

The invention discloses an automatic water level extraction method and system based on a reservoir monitoring camera. The standard size of a reservoir is monitored based on image data provided by the reservoir monitoring camera, and the water level is automatically extracted through an image processing method. On the premise that precise water level data are provided, corresponding water level image data are provided, and key pixel training extraction, edge detection extraction, clustering analysis, denoising and water level segment detection are conducted on the image data so that the function of automatically calculating water level data on the basis of camera data can be achieved. According to the automatic water level extraction method and system based on the reservoir monitoring camera, on the basis that the reservoir monitoring camera executes a monitoring task, water level value calculation and extraction are automatically conducted on monitored images, an existing water level data extraction process is simplified, reservoir water level real-time monitoring and data acquisition are achieved on the premise that no hardware facilities are added, and the water level extraction method and system can be widely applied to reservoir production practice.

Data collected during reservoir monitoring may include fiber optic measurements utilizing a distributed sensing system. Downhole monitoring with the distributed sensing system may generate large amounts of data. For example, the system may be capable of producing the functional equivalent of tens, hundreds, or even thousands of sensors along a length of a wellbore. Continuous monitoring of various properties, including temperature, pressure, Bragg gradient, acoustic, and strain, may create a large volume of data, possibly spanning into several gigabytes. Embodiments of the present invention provide techniques for analyzing a large volume of measurements taken in a wellbore without compromising on the integrity of data.

Systems and methods for monitoring a characteristic of a subterranean hydrocarbon reservoir and for placing a borehole in the vicinity of a well in an earth formation. New well completion systems with slotted stations are utilized to provide through-casing signal-transmission and / or reception. Hydraulic isolation between the interior and the exterior of the completion is provided by pressure barrier means at the slotted stations. The completions permit temporary or permanent monitoring of changes in reservoir saturation with the use of mobile sources / sensors. The completions also form part of a system for accurately placing a well within a desired distance and orientation relative to an existing well.

A well-bore monitoring process involving logging the temperature of a soil, rock, and brine mixture present in a carbonate formation continuously, and simultaneously logging the resistivity of the soil, rock, and brine mixture in the carbonate formation continuously. The logged temperature and the logged resistivity are interpreted whereby concurrent events in the logged temperature and the logged resistivity identify dissolution of rock into the mixture and precipitation of scale from the mixture. The simultaneous logging of the temperature and the resistivity is conducted in a well-bore in the carbonate rock formation.

The invention relates to a microseismic first arrival acquisition method based on shear wave and the Akaike information criterion, belonging to microseismic first arrival automatic extraction method research in an actual seismic exploration environment. For statistical characteristics showed by a micro seismic signal, background noise and the micro seismic signal are viewed as two stationary processes with different statistical properties, shear wave transform is used to decompose and reconstruct the micro seismic signal, at the same time, combined with an AIC model, each layer of reconstructed signal is subjected to first arrival pickup, and finally the pickup result of each layer is integrated to determine seismic two-dimensional first arrival pickup result. According to the method proposed in the invention, the preprocessing of complex background noise is not needed, time and calculation cost are saved, the energy loss of the micro seismic signal in the denoising process is avoided, the amplitude frequency characteristics of an effective signal in a micro seismic two-dimensional record is effectively retained, and an important basis is provided for oil and gas reservoir monitoring, geothermy dynamic monitoring, coal mining and dynamic engineering monitoring.

The present invention discloses a reservoir area three-dimensional real scene display method based on the WEBGIS. The method comprises the following steps: (1) employing an unmanned aerial vehicle toperform aerial shooting of a reservoir area; (2) performing panorama image combination; (3) performing association in pairs of scenes, and calculating position information of an associated scene of each scene through the GIS algorithm; (4) performing three-dimensional real scene generation; (5) extracting longitudes and latitudes of each scene, and loading the longitudes and latitudes on the WEBGIS in a PointMarker mode; and (6) displaying real-time information of reservoir monitoring parameters in the three-dimensional real scene. The reservoir area three-dimensional real scene display methodbased on the WEBGIS realizes scene association automation and employs a WEBGIS electronic sand table to provide a navigation function for the three-dimensional real scene.

The invention relates to the technical field of artificial intelligence, and provides a model-based water pollution risk assessment method and device, computer equipment and a storage medium, and themethod comprises the steps: obtaining the numerical value of an impact factor corresponding to a specified reservoir, and enabling the impact factor to be generated according to the pollution factor data related to reservoir water pollution; a pre-trained risk assessment model is called, and the risk assessment model is generated after a preset BP neural network model is trained based on pre-collected historical reservoir monitoring data and influence factors; the numerical value of the influence factor is input into a risk assessment model so as to carry out risk assessment processing on thespecified reservoir through the risk assessment model; and an output result output by the risk assessment model is obtained, and the output result is taken as a risk assessment result of the specifiedreservoir. According to the invention, based on the numerical value of the influence factor corresponding to the specified reservoir, the risk assessment model is utilized to intelligently and conveniently realize water pollution risk assessment of the specified reservoir.

The invention provides a water conservancy informatization management system applied to flood situation monitoring and early warning. The water conservancy informatization management system comprisesa reservoir monitoring device, a riverway hydrology monitoring device, a gate monitoring device, a water conservancy information center management and control platform and a cloud database. Each monitoring device feeds back monitored information to the water conservancy information center management and control platform in real time; and the water conservancy information center management and control platform stores data information transmitted by each monitoring device, monitors the data of all the monitoring devices in real time, formulates a standard threshold value, and transmits the datainformation to each display terminal. By using the system of the invention, remote monitoring and alarming can be performed on a plurality of monitoring points at the same time, when monitoring data exceeds a standard threshold value, an alarm is given out, the water conservancy information center management and control platform, the cloud database and the display terminal can receive signals at the same time, workers can conveniently, rapidly and accurately find flood-affected points, therefore dangerous situations can be eliminated in time, and life and property safety of people is guaranteed.

The invention provides a chain-based multi-window control and data processing method, device and system. The method comprises the following steps of S1, integrating a sub-platform at least comprising a reservoir description sub-platform, a reservoir simulation sub-platform, a reservoir monitoring sub-platform and a cooperative work sub-platform in a data processing platform; S2, arranging the sub-platform and a subordinate sub-window started by the sub-platform into a white board operation interface window in a predetermined format; S3, dividing different levels for the operation interface window of the data processing platform, and establishing a chained list of different operation interface windows based on the different levels of the operation interface window; S4, obtaining operation interface window information which is selected from the chained list by a user, and transferring the selected operation interface window to the front of the other operation interface windows. By utilizing each embodiment of the invention, the window transfer control and the quick search switching under the comprehensive multi-platform and multi-window design environment and the like can be implemented.

An offshore reservoir monitoring system (100) comprises a vertical array (110) with multiple seismic receivers (120) less than 10 m apart. During operation, the vertical array is deployed in a shallow borehole (111) in a seabed (10) away from noise at a seafloor (11). The dense spacing of receivers (120) ensures an adequate number of sensors (120) in the shallow borehole (111) and a spatial sampling rate appropriate for suppressing coherent noise in the shallow layers under the seafloor (11). Vertical arrays (110) can be added to the system (100) at any time.

In one embodiment the invention comprises a method for seismic data acquisition in which at least one conduit is installed on a sea floor and at least one seismic sensor is removably installed within said at least one conduit.

The invention relates to the technical field of reservoir monitoring, in particular to a reservoir water level model prediction method which comprises the following steps: step 1, collecting information data of a selected reservoir; 2, a moment t is selected, and multiple water levels at different positions at the moment t are obtained through regression according to the collected information amount; 3, taking an average value of a plurality of water levels at the moment t; 4, predicting the water level quantity after a certain period of time according to the obtained water level average value and variation; according to the method, advanced practical technologies such as machine learning, compressed sensing, a neural network and deep learning are used, meteorological and hydrological big data are used for estimating the water level of the reservoir in real time, a theoretical method of big data science is applied to the hydrological field, real-time prediction of the water level of the reservoir is guaranteed, and prevention can be conducted in advance.

The invention provides an unmanned reservoir monitoring system which comprises the components of (1), an image acquisition module which is used for acquiring a video monitoring image; (2), an image preprocessing module which is used for performing preliminary moving object detection on original video image sequence information and outputting effective video image sequence information that comprises the moving object; (3), a filtering module which is used for receiving the effective video image sequence information and filtering the background shape of the effective video image sequence information; (4), a background modeling module which is used for establishing a background model after filtering, wherein the background model is composed of N shape context histograms which comprise weight and represent edge points; (5) a background subtraction module which is used for performing attribute classification on the edge points on the current image frame and subtracting the edge points that belong to the background; (6), a characteristic matching module; and (7), an alarm module. The unmanned reservoir monitoring system can maximally reduce false detection of the moving object caused by background noise and camera jitter and furthermore realizes high real-time performance.

Methods and systems for determining tracer breakthrough from multiple wells commingled at a gas oil separation plant (GOSP) are provided. An example hydrocarbon reservoir monitoring method includes periodically sampling fluid carried by a water line of a gas oil separation plant (GOSP). The GOSP is configured to receive commingled well hydrocarbon fluids from multiple wells formed in multiple regions of a hydrocarbon reservoir, separate the well fluids into hydrocarbon components including water, and flow the water through the water line. The multiple regions are tagged with respective tracers. Each tracer is injected into a respective region of the hydrocarbon reservoir surrounding a respective well and can flow into the respective well in response to a well breakthrough. The method alsoincludes analyzing each sampled fluid for one or more tracers of the multiple tracers and monitoring the multiple wells for fluid breakthrough based on results of analyzing each sampled fluid.

The invention discloses a reservoir monitoring device based on solar energy, which comprises a power supply part, a rainwater collection part is fixedly connected to the top end of the power supply part, a rainwater storage part is arranged below the rainwater collection part, the rainwater collection part and the rainwater storage part are correspondingly arranged, and a shielding part is arranged on one side, far away from the rainwater storage part, of the power supply part; the side, close to the rainwater storage part, of the power supply part is fixedly connected with supporting legs, a backflow box is arranged below the rainwater storage part, a gravity box is arranged below the backflow box, the backflow box communicates with the gravity box through a hose, the rainwater storage part and the backflow box are both fixedly connected with the supporting legs, and the gravity box is slidably connected with the supporting legs. According to the invention, the solar panel can absorb solar energy and convert the solar energy into electric energy to be stored so as to be used by a monitored electronic device when there is no rainfall, and the solar panel can be protected and the rainfall can be monitored when there is rainfall, so that the service life of the solar panel is prolonged, and the use purposes of the monitoring device are increased.

The invention relates to a three-dimensional time-lapse seismic observation reservoir monitoring method and system. The three-dimensional time-lapse seismic observation reservoir monitoring method comprises the steps of obtaining physical parameters of before and after mining of a gas hydrate reservoir and an underlying free gas layer; calculating porosity, saturation and reserves according to thephysical parameters; and analyzing a hydrate accumulation model according to a calculated result of the porosity, the saturation and the reserves. According to the three-dimensional time-lapse seismic observation reservoir monitoring method, monitoring variation of the reservoir before and after gas mining is realized, the hydrate accumulation model is analyzed, and data supporting is provided for the mining safety of hydrates.

The invention discloses a monitoring system for land area natural gas hydrate exploitation. The monitoring system comprises an atmosphere monitoring unit, an earth surface monitoring unit and a reservoir monitoring unit, namely an atmosphere-earth surface-reservoir 'three-in-one' environment monitoring system. The monitoring system is clear in structure, comprehensive in function and capable of realizing omnibearing monitoring of land area natural gas hydrate exploitation, a guarantee is provided for reducing the environmental risk of land area natural gas hydrate exploitation so as to achievesafe and efficient exploitation, and wide application prospects are achieved.

The invention relates to a down-hole parameter monitoring device for fracturing in the technical field of petroleum and gas reservoir monitoring transformation. The down-hole parameter monitoring device for fracturing comprises a cylinder axially provided with a liquid inlet passage and a measurement passage which are in parallel, an upper gland, a monitoring device shell with perforated two ends and a lower gland are arranged in the measurement passage sequentially, the upper end of the upper gland is in tight fitting with the inner wall of the measurement passage in a threaded manner, a blind hole corresponding to the upper end of the monitoring device shell is formed in the lower end of the upper gland, a steplike liquid inlet hole is formed in the cylinder wall corresponding to the outer wall of the blind hole, an annular liquid inlet cover is connected into the liquid inlet hole, a plurality of axially penetrating first slits are formed in the annular liquid inlet cover, and the blind hole wall is provided with a plurality of radially penetrating second slits communicated with the first slits. Sealing rings matched with the inner wall of the measurement passage are arranged on the peripheries of two ends of the monitoring device shell, a monitoring device is arranged in the monitoring device shell and comprises an upper sensor, a circuit device and a lower sensor, and the lower gland is axially provided with third slits communicated with the lower end of the monitoring device shell.

The invention relates to the technical field of reservoir monitoring devices, in particular to a reservoir water level monitoring and alarming device, which can adjust the height position of a detector without adjusting a mounting frame, so that the adjustment cost is saved. Meanwhile, energy is saved; the monitoring function is added, and the usability is improved; the device comprises a mountingframe, a mounting rod, a detector, a controller and an alarm, and the detector is arranged at the bottom end of the mounting rod; a telescopic motor is further included, a driving shaft is arranged at the bottom output end of the telescopic motor, and the mounting rod is arranged at the bottom end of the driving shaft; the device further comprises a supporting frame, a solar cell panel, a storagebattery and a converter, the solar cell panel is arranged on the supporting frame, and the storage battery is electrically connected with the telescopic motor, the converter, the detector, the controller and the alarm; the device further comprises an adjusting frame, a driver, a shielding piece and a camera, the adjusting frame is arranged on the left side of the top end of the mounting frame, the driver is arranged on the adjusting frame, the shielding piece and the camera are arranged on the driver, and the camera is located on the inner side of the shielding piece.

The invention discloses a method of optimizing an oil reservoir monitoring system, comprising the following steps: (1) monitoring network system optimization; (2) simulation technology optimization: designing an experimental model in a similar proportion according to the principle of similarity by taking an actual oil reservoir in an oil field as a prototype, and conducting physical simulation experiment research of a drive system on a 3D model under the conditions of simulation experiment temperature, pressure and the like; (3) data loading system optimization: processing raw data stored via an angular point network; and (4) oil reservoir numerical calculation method optimization: converting a sparse matrix into a quad-tree storage format in a conjugate gradient method. Through the method, an oil reservoir monitoring system is optimized systematically, the smoothness of the system is improved, the running efficiency of the system is improved, and workers can better monitor the process of oil reservoir development.