35 results about "Petroleum system" patented technology

The invention relates to a preparation method of intermediate-phase asphalt, in particular to the preparation method of the intermediate-phase asphalt in a coal system or a petroleum system, and the method comprises the following two steps: 1) selecting coal asphalt or petroleum asphalt as raw material, and adding olefin and a friedel-crafts alkylation catalyst for alkylation of the raw material asphalt; and 2) performing pyrocondensation polymerization on the alkylated asphalt for getting a finished product. By adopting the preparation method, the technical problems that the intermediate-phase asphalt prepared by the existing method is high in softening point and can not meet the requirements for preparing high-grade carbon materials can be solved, the intermediate-phase asphalt preparedby the preparation method can be used for manufacturing various important carbon materials, such as needle coke, intermediate-phase asphalt-based carbon fiber, intermediate-phase asphalt-based carbonnegative pole material, intermediate-phase asphalt-based carbon / carbon composite material, intermediate-phase asphalt-based foam carbon, high-temperature lubricant, catalyst carriers and the like.

An integrated system for management, visualization and analysis of geophysical and geological data includes an input module, to accept data pertaining to a geological region, modeling modules to model physical, geophysical and / or geological properties of the geological region based on the data, an interface module, operable to input parameters and to select portions of the input data for use by the modeling modules, and a data management module, to receive data from the input module and provide data to the modeling modules. When a change in data is received by the input module or a change in parameters received by the interface module, the data management module invokes the modeling modules for re-processing in accordance therewith. A display module creates graphical displays based on the modeled properties of the geological region and updates the graphical displays in accordance with the re-processing.

The invention belongs to the field of oil-gas-bearing system research and particularly provides a Re-Os isotope analysis method for oil and gas system organic matter research. The method includes the following steps of sample pretreatment, Re-Os separation, Re purification, Os purification and Re and Os isotope detection. A sample is high-evolution organic matter, preferably high-evolution organic-matter-rich sedimentary rock or high-evolution formation asphalt. The method is especially suitable for hydrocarbon source comparison and reservoir forming geochronology research under the organic matter high-evolution condition. According to the method, the high-evolution organic matter sample is fully dissolved, Re and Os elements are effectively separated and purified, accurate Re-Os isotope data of the high-evolution sample is acquired, the reservoir forming geochronology and hydrocarbon sources are determined based on the data, and a reference basis is provided for finding out the formation process of natural gas reservoirs or fossil oil reservoirs or other oil and gas systems and guiding exploration.

A method and system for integrating multiple analytical processes for evaluating risk and uncertainty elements of a petroleum system. The integrated environment provides a consistent means of analysis for evaluating multiple petroleum systems including exploration prospects and reservoirs, wherein multiple evaluation tools can be used and each of the tools has a similar “look” and “feel” so that a user can efficiently utilize all of the tools in the integrated environment. The evaluation tools analyze common data sets within the integrated environment so that a consistent evaluation of a petroleum system can be performed.

A method and system for integrating multiple analytical processes for evaluating risk and uncertainty elements of a petroleum system. The integrated environment provides a consistent means of analysis for evaluating multiple petroleum systems including exploration prospects and reservoirs, wherein multiple evaluation tools can be used and each of the tools has a similar “look” and “feel” so that a user can efficiently utilize all of the tools in the integrated environment. The evaluation tools analyze common data sets within the integrated environment so that a consistent evaluation of a petroleum system can be performed.

A method of modeling a salt history for a geologic region containing a salt formation includes defining initial geometry of salt volume and sediment volume in three dimensions, changing geometry of the salt top and maintain the geometries of a top of the sediment and a base of the salt formation for a plurality of time steps, and for each change of geometry, conserving a volume of salt and a volume of sediment. The method includes initially constraining a geometry of the base of the salt during the changing geometry of the salt and sediment volumes, modeling geological activity in the geologic region and modifying the base of the salt formation during a time of the time steps, and modifying the volumes in accordance with the modeled geological activity.

The invention relates to a downhole tool high-temperature and high-pressure simulation test device and a petroleum downhole tool simulation test method using the device. The device comprises a low-pressure driving system, a high-pressure petroleum system, a high-temperature circulation system, a temperature and pressure measurement system, a simulation wellhole and a computer control acquisition and video monitoring system. In the test, a medium simulating downhole fluid is injected into the simulation wellhole by the high-pressure petroleum system, and downhole working pressure of the simulation wellhole is simulated and controlled. In the whole process, pressure and temperature data of the device are acquired in real time via the pressure and temperature measurement system. Functions of controlling, a human-computer interface, data processing and communication are integrated in the computer control acquisition system. The video monitoring system is responsible for monitoring the operation situation of the whole device. The working state of petroleum drilling and well completion tools under the high-temperature and high-pressure situations can be simulated so that powerful reference basis is provided for onsite application.

A method for modelling the migration of reactant in a subsurface petroleum system is described. The method comprises in part generating a mesh for an area of the petroleum system. The mesh comprises a plurality of nodes, with each node representing a point in space in the area. The method also comprises calculating one or more variables representing one or more physical characteristics at each node in the area and determining the migration of reactant in the petroleum system based on the one or more variables. The method can also handle multiple reactant phases and non-static meshes.

The invention provides a method for confirming the lower limit of abundance of dispersing liquid hydrocarbon in hydrocarbon source rock. The method comprises the following steps: sampling series of foundational hydrocarbon source rock samples in a to-be-measured area; determining the samples, thereby acquiring a free hydrocarbon volume S1 (determined), a pyrolysis hydrocarbon volume S2 (determined) and a hydrocarbon generating potential volume S1 (determined) + S2 (determined); correcting the S1 (determined), thereby acquiring the S1 (corrected); classifying according to the sedimentary facies, and respectively establishing a relational expression between S1 (corrected) and S1 (determined) + S2 (determined); and by utilizing the relational expressions between the S1 (corrected) and S1 (determined) as well as S1 (determined) + S2 (determined) according to an evaluation criterion for abundance of organic matters established by taking the hydrocarbon generating potential volume S1+S2 as parameters, acquiring the lower limit of abundance of dispersing liquid hydrocarbon in hydrocarbon source rock, which is established by taking the free hydrocarbon volume S1 as the parameter. The acquired result according to the method provided by the invention can be used for accurately judging whether the dispersing liquid hydrocarbon in hydrocarbon source rock can be taken as effective hydrocarbon source rock or effective gas source at any level; the criterion is supplied for evaluation; and the method has important theoretical significance in acknowledging the exploration potential of a deep old petroleum system and also has important reality in expanding the exploration discovery.

The invention discloses a configurable activity alarm method for an industrial automation system. Information models are configured according to concerned categories, and each information model corresponds to one user group; each information model can comprise a plurality of layers; each layer comprises one or more than one node or child node; all the nodes or the child nodes form a tree structure; and each node or each child node corresponds to one physical or logic alarm group or one alarm subgroup, thereby, no matter for electric systems, coal mine systems, petroleum systems and the like or a condition-based maintenance system, an online monitoring system, a supervisory control and data acquisition (SCADA) system and the like in the industrial automation system, required information models and user groups can be respectively constructed without recoding the systems. According to the demands of the user groups, a filtering condition is set for each alarm group or alarm subgroup so as to ensure the condition that users with different types can receive required alarm information but cannot be disturbed by a great amount of unconcerned alarm information, thereby, the layered personalized subscription on activity alarm is realized.

The invention provides a system and method for integrating petroleum system and geomechanical computer models for use in oil and gas exploration. In one embodiment, the invention provides a petroleum system model capable of analyzing data relating to a subterranean formation and calculating the geometry and geochemistry of each layer of the formation through geologic time. The present invention also provides a geomechanical model in communication with the petroleum system model such that information concerning each layer of the subterranean formation may be shared and cross-referenced as an iterative operation prior to the analysis of subsequent layers. At each step of the iterative operation, results are calculated, validated, and cross-referenced in order to produce improved reliability estimates of petroleum charge and mechanical seal integrity for the subterranean formation.

A method of modeling a salt history for a geologic region containing a salt formation includes defining initial geometry of salt volume and sediment volume in three dimensions, changing geometry of the salt top and maintain the geometries of a top of the sediment and a base of the salt formation for a plurality of time steps, and for each change of geometry, conserving a volume of salt and a volume of sediment. The method includes initially constraining a geometry of the base of the salt during the changing geometry of the salt and sediment volumes, modeling geological activity in the geologic region and modifying the base of the salt formation during a time of the time steps, and modifying the volumes in accordance with the modeled geological activity.

A method for modelling the migration of reactant in a subsurface petroleum system is described. The method comprises in part generating a mesh for an area of the petroleum system. The mesh comprises a plurality of nodes, with each node representing a point in space in the area. The method also comprises calculating one or more variables representing one or more physical characteristics at each node in the area and determining the migration of reactant in the petroleum system based on the one or more variables. The method can also handle multiple reactant phases and non-static meshes.

Devices and methods for enhancing the operations of fluid systems are provided. For example, this document provides pressure differential relief valves that are well suited for use with medical fluid reservoirs. The pressure differential relief valves provided herein are described in the context of a medical fluid system, such as an extracorporeal blood flow circuit, but the devices and methods provided herein can be implemented in other types of fluid systems including, but not limited to, pneumatic systems, hydraulic systems, fluid power systems, petroleum systems, and various other types of gaseous or liquid-based fluid systems.

A method of stochastically modeling a plurality of litho-facies within a formation includes defining a fades classification for each of a top and a base of the formation, dividing the formation into a plurality of layers, and interpolating classifications for each of the plurality of layers, based on the defined facies classification for the top and the base, wherein the interpolating includes a random variation component.

The invention relates to a preparation method of intermediate-phase asphalt, in particular to the preparation method of the intermediate-phase asphalt in a coal system or a petroleum system, and the method comprises the following two steps: 1) selecting coal asphalt or petroleum asphalt as raw material, and adding olefin and a friedel-crafts alkylation catalyst for alkylation of the raw material asphalt; and 2) performing pyrocondensation polymerization on the alkylated asphalt for getting a finished product. By adopting the preparation method, the technical problems that the intermediate-phase asphalt prepared by the existing method is high in softening point and can not meet the requirements for preparing high-grade carbon materials can be solved, the intermediate-phase asphalt preparedby the preparation method can be used for manufacturing various important carbon materials, such as needle coke, intermediate-phase asphalt-based carbon fiber, intermediate-phase asphalt-based carbonnegative pole material, intermediate-phase asphalt-based carbon / carbon composite material, intermediate-phase asphalt-based foam carbon, high-temperature lubricant, catalyst carriers and the like.

Coupling fluid-flow model and geomechanical model for integrated petroleum systems, in one aspect, may comprise analyzing historical data associated with a reservoir to determine one or more triggering events that trigger abrupt changes in the state of stress of the reservoir solid framework and in the pore pressure. One or more time steps are defined based on the determined triggering events. The fluid-flow model and the geomechanical model are coupled at the one or more defined time steps, e.g., one-way or two-way. Number of iterations may be calculated automatically for the two-way coupling to converge.

The implementation of a fracturing measure becomes a common yield increasing measure for high-water-content later-stage oil field development and exploitation, and on-site selection of a fracturing construction well before fracturing also depends on an empirical method. The method has the characteristics of blindness and subjectivity, and the final fracturing effect is often not satisfactory. Along with the proposal of an oil field digitization strategy of a petroleum system, oil field production pays more and more attention to collection and accumulation of data. A large amount of production data are also accumulated in oil field fracturing production, the data are actually a set of information related to fracturing production activities, and when the data are accumulated to a certain degree, the data inevitably contain available rules. According to the patent, a model for judging whether fracturing is effective or not is established by using a support vector machine data mining algorithm on the basis of oil field reservoir physical property factors such as oil layer mid-depth, thickness, porosity, permeability, shale content and water saturation. And furthermore, a new fracturing operation is expected to be predicted by utilizing the established model for judging whether fracturing is effective or not, the new fracturing operation is guided, the future production is predicted to lower the development risk, and the economic benefit of an enterprise is improved.

The invention discloses a composite flexible pipe laying device, and relates to the field of petroleum system construction equipment. According to the technical scheme, the composite flexible pipe laying device comprises a tunneling mechanism at the front end of a vehicle body, a supporting mechanism arranged above the middle part of the vehicle body and used for supporting a composite flexible pipe roller body, and a soil pressing mechanism arranged at the rear end of the vehicle body, wherein a pipe drawing mechanism is further arranged below the middle part of the vehicle body. The composite flexible pipe laying device has the beneficial effects that by means of the device in the scheme, the composite flexible pipe roller body can be borne, and excavation of a composite flexible pipe burying groove, arrangement of a pipe body and final groove preliminary burying work are synchronously conducted. The whole process can be completed at a time along with advancing of equipment, and therequirements for labor and working hours are reduced.

Coupling fluid-flow model and geomechanical model for integrated petroleum systems, in one aspect, may comprise analyzing historical data associated with a reservoir to determine one or more triggering events that trigger abrupt changes in the state of stress of the reservoir solid framework and in the pore pressure. One or more time steps are defined based on the determined triggering events. The fluid-flow model and the geomechanical model are coupled at the one or more defined time steps, e.g., one-way or two-way. Number of iterations may be calculated automatically for the two-way coupling to converge.

This method allows for prediction of subsurface fluid properties (e.g., phase or API gravity) using gas chromatogram data of a small-volume extract. Small volume equates to microliter scale volume (or milligram scale weight) from a subsurface rock sample, where a fluid test may not be available for analysis. The method may also be applied to petroleum liquid samples where drilling fluid or other contaminants preclude accurate direct property measurement. Gas chromatographic data is calibrated to measured petroleum properties; preferably local oils from the same petroleum system, however, a general global calibration can also be used.

A parallel-processing hydrocarbon (HC) migration and accumulation methodology is applied to basin data to determine migration pathways and traps for high-resolution petroleum system modeling. HC is determined in parallel to have been expelled in source rocks associated with a plurality of grid cells divided into one or more subdomains. Potential trap peaks are identified within the plurality of grid cells. An invasion percolation (IP) process is performed until the HC stops migrating upon arrival to the plurality of trap peaks. A determination is made as to whether the grid cells containing HCcontains an excess volume of HC. An accumulation process is performed to model the filling of the HC at a trap associated with the identified potential trap peaks. The trap boundary cell list is updated in parallel together with an HC potential value. Trap filling terminates when excess HC is depleted or a spill point is reached.

The invention provides an electronic identification method for an oil field flow string, and a digital management method and system thereof, and belongs to the technical field of digital management of petroleum systems. According to the electronic identification method for the oil field flow string, an identification ring / board made of an abrasion-resistant and corrosion-resistant metal material can be fixed to the flow string through a electromagnetic pulse cold-pressing micro-welding technology, the cold-pressing micro-welding mode does not damage the structure performance of a body, no heat influence exists, the bonding strength is large, the microstructure does not change, and wear-resistant, corrosion-resistant, permanent and reliable properties are achieved.

The invention discloses a filtering device, which comprises a first filter, a second filter and a third filter; a first input pipe with a first input valve is arranged at the inlet end of the first filter; There is a first output pipe with a first output valve; a second input pipe with a second input valve is provided at the inlet of the second filter, and a second output pipe with a second output valve is provided at the outlet; The inlet end of the three filters is provided with a third input pipe with a third input valve, and the outlet end is provided with a third output pipe with a third output valve; the first filter and the second filter are connected in parallel to form a parallel filter group; The free ends of the three input pipes are connected to the output ends of the parallel filter groups, or the free ends of the third output pipe are connected to the input ends of the parallel filter groups. The filtering group device can connect two filters in series, and the filtering effect is good. The present invention also provides a petroleum hydrogenation system, which uses the above filter device and can improve the purity of hydrogenation raw materials.

The invention provides a method for confirming the lower limit of abundance of dispersing liquid hydrocarbon in hydrocarbon source rock. The method comprises the following steps: sampling series of foundational hydrocarbon source rock samples in a to-be-measured area; determining the samples, thereby acquiring a free hydrocarbon volume S1 (determined), a pyrolysis hydrocarbon volume S2 (determined) and a hydrocarbon generating potential volume S1 (determined) + S2 (determined); correcting the S1 (determined), thereby acquiring the S1 (corrected); classifying according to the sedimentary facies, and respectively establishing a relational expression between S1 (corrected) and S1 (determined) + S2 (determined); and by utilizing the relational expressions between the S1 (corrected) and S1 (determined) as well as S1 (determined) + S2 (determined) according to an evaluation criterion for abundance of organic matters established by taking the hydrocarbon generating potential volume S1+S2 as parameters, acquiring the lower limit of abundance of dispersing liquid hydrocarbon in hydrocarbon source rock, which is established by taking the free hydrocarbon volume S1 as the parameter. The acquired result according to the method provided by the invention can be used for accurately judging whether the dispersing liquid hydrocarbon in hydrocarbon source rock can be taken as effective hydrocarbon source rock or effective gas source at any level; the criterion is supplied for evaluation; and the method has important theoretical significance in acknowledging the exploration potential of a deep old petroleum system and also has important reality in expanding the exploration discovery.

The invention discloses a petroleum yield prediction method and device based on a Stackelberg game model. The method comprises the steps of obtaining historical petroleum yield data of all main objects in a petroleum system; based on the Hubbert function, constructing a Hubbert yield prediction model of each main body object according to the historical petroleum yield data of each main body object; predicting petroleum yield data of each main body object under the resource constraint by utilizing the Hubbert yield prediction model of each main body object; and inputting the petroleum yield data of each main body object under the resource constraint into a pre-constructed Stackelberg game model, and outputting the petroleum yield data of each main body object under the game relationship. According to the invention, the petroleum yield is predicted based on the Stackelberg game model, the macroscopic game relationship of the petroleum market is considered, and the future petroleum yieldcan be predicted more accurately.

The invention provides a natural grid dissection method of a geological profile. The method comprises a stratum grid generation step and a step of forming side and point grids that reflecting communication relation among faults, cracks and unconformable channels on the basis of dissection of a stratum grid. The stratum grid is composed of enclosed first grid units which are positioned between stratum boundaries and fracture lines and formed by intersecting with manual inserted lines, the stratum boundaries comprise stratum conformable and unconformable contact lines, and the crack lines comprise the faults and cracks. The natural grid dissection method of the geological profile relies on specific natural grid form characteristics (reserving original forms of the faults, cracks and unconformable layers) of the side grids, characteristics of distribution and transmission capabilities of an oil gas transmission system are described in a better way, and significant means is provide for oil gas migration-accumulation simulation, oil gas contained system analysis and oil gas reservoir forming research.