34 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.

A method of rendering three dimensional visualizations of two dimensional geophysical data includes converting each of a plurality of two dimensional data sets into a respective two dimensional image using two dimensional geological modeling and displaying the two dimensional images in a three dimensional space, the two dimensional images being located within the three dimensional space based on spatial relationships between locations from which the two dimensional data sets originate. An embodiment includes a system for performing the method.

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.

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.

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.

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 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 an electronic identification method for an oil production string in an oil field, as well as a digital management method and a system thereof, and belongs to the technical fieldof petroleum system digital management. The electronic identification method for the oil production string in the oil field provided by the invention comprises the following steps of welding an identification ring/plate made of a wear-resistant and corrosion-resistant metal material at a specific position on the surface of the oil production string by adopting an electromagnetic pulse welding manner; and laser-engraving an electronic tag containing information identification on the surface of the identification ring/board through a laser engraving technology. According to the electronic identification method for the oil production string in the oil field, as well as the digital management method and the system thereof provided by the invention, by means of the method, the manufacturing ofthe electronic tag which is high in corrosion resistance and capable of containing information identification can be achieved on the surface of the oil production string, the identity of the oil production string can be comprehensively managed and controlled when the oil production string is applied in any case, so that the purpose of whole-process information intelligent management of the oil production string is achieved.