37 results about "Geological process" patented technology

A method for producing a substantially calibrated numerical model, which can be used for calculating a stress on any point in a formation, accounts for a formation's geologic history using at least one virtual formation condition to effectively “create” the present-day, virgin stress distribution that correlates, within acceptable deviation limits, to actual field stress measurement data obtained for the formation. A virtual formation condition may describe an elastic rock property (e.g., Poisson ratio, Young's modulus), a plastic rock property (e.g., friction angle, cohesion) and/or a geologic process (e.g., tectonics, erosion) considered pertinent to developing a stratigraphic model suitable for performing the desired stress analysis of the formation.

The invention relates to a method for predicting a low-porosity and low-permeability clasolite effective reservoir at a high-diagenesis stage and belongs to the technical field of oil and gas exploration and development. The method is characterized in that a geological process response relationship is established through carrying out analysis, simulation and quantitative evaluation on a geological process affecting porosity, the original pore preservation and induced pore increase/decrease conditions of a reservoir are determined, thus, the current porosity of a low-porosity and low-permeability reservoir at the high-diagenesis stage is quantitatively evaluated, the development of the effective reservoir is predicted, and a basis is provided for reservoir evaluation. The method for predicting the low-porosity and low-permeability clasolite effective reservoir at the high-diagenesis stage has the advantages that the predictability is strong, the distribution of various clasolite effective reservoirs at different stages of high-diagenesis can be accurately predicted, the fine prediction on the distribution of effective reservoirs of a research target section can be achieved, and the predicted unit plane can reach a hectometer level; the theoretical basis is solid, and the condition of over reliance on the data of sampled points in the traditional method is avoided; the quantitative performance is good, the applicability is wide, and the information requirements are relatively low; and the evaluation, with different information foundations, on different exploration and development stages is facilitated.

One aspect of the invention is a method for building geologic/stratigraphic models of the earth for the purposes of numerical simulations of phenomena of interest, such as seismic wave propagation, or fluid flow, reservoir simulation, etc. An embodiment of the invention uses stochastic methods to create material property models that have desired statistical properties by numerically simulating deposition of geological layers. The method can create multiple material parameter models from numerical implementations of a variety of geological processes.

The invention relates to the technical field of constructional engineering and bridge engineering shock isolation, in particular to a novel three-dimensional shock isolation device with large vertical static rigidity. The novel three-dimensional shock isolation device comprises a horizontal shock isolating component, a transition steel structure platform and a vertical shock isolating component. The horizontal shock isolating component and the vertical shock isolating component are arranged at the top and bottom of the transition steel structure platform respectively. A vertical damping element and a vertical static support are further included and both arranged at the bottom of the transition steel structure platform, and are parallel to the vertical shock isolating component. The device can achieve the shock isolating function both in the horizontal direction and in the vertical direction, horizontal shock isolation and vertical shock isolation are decoupled and do not implicate each other, and high safety is achieved. The vertical damping component can further relieve the vertical geological process through energy dissipation, the vertical static support can provide large vertical static compression resistance rigidity, meanwhile, certain tensile strength can be provided during a vertical earthquake, the safety of the upper structure is guaranteed, manufacturing is easy and convenient, and construction, mounting and maintenance are convenient.

The invention relates to a multi-functional high temperature and high pressure simulation experimental device for hydrocarbon and rock generating and a using method thereof. The multi-functional hightemperature and high pressure simulation experimental device comprises a hydrocarbon source rock hydrocarbon generating reaction and fluid generating system, an auxiliary system, a hydrocarbon expulsion reaction and hydrocarbon source fluid transfer system, a hydrocarbon source fluid-rock interaction system and a product separating collecting system. A fluid in the hydrocarbon source rock hydrocarbon generating reaction and fluid generating system is released into the hydrocarbon expulsion reaction and hydrocarbon source fluid transfer system, and then the hydrocarbon source fluid is injectedinto reservoir rock samples in core clamping devices, a heating and pressurizing device is started to enable the fluid and rock to react at a setting temperature, pressure and time. According to the multi-functional high temperature and high pressure simulation experimental device for the hydrocarbon and rock generating, the simulating linkage co-control dynamic evolution processes of hydrocarbonsource rock hydrocarbon generating and hydrocarbon expulsion can be simulated, the generating capacity of conventional natural gas and shale gas in different evolution stages of hydrocarbon source rock can be determined, and the integrated geological process of hydrocarbon source fluid generating and the influence to reservoir rock generating can be further simulated; and the simulation of two geological processes of the hydrocarbon generating and the rock generating is met, the application fields of the experimental device are extended, and the efficiency of the experimental device is improved.

The invention discloses a petroleum filling simulation method and system for a tight reservoir. The method comprises the following steps that first samples corresponding to the tight reservoir and second samples corresponding to an objective source rock are obtained; the first samples are subjected to pretreatment, burden pressure physical property measurement and stratum water injection are conducted, and first data are obtained; the second samples are subjected to total organic carbon, pyrolysis and maturity measurement, the second samples with the maturity lower than a preset value are subjected to a hydrocarbon-generation kinetic test of an open system, and second data are obtained; according to well logging data, the first data and the second data, the source storage configuration relation of the tight reservoir is determined, the first samples and the second samples are filled according to the relation, and simulation samples are obtained; and according to the stratum burial history, the thermal history and the temperature and the pressure of a current stratum, the simulation samples are subjected to petroleum distribution measurement after a geological process constraint simulation experiment, and the petroleum distribution conditions are determined. According to the petroleum filling simulation method and system for the tight reservoir, raw petroleum generated by the source rock and the composition thereof can be truly simulated.

The invention provides a simulating method of the burial evolution process of argillaceous sediments. Silt is used as a starting point of an experiment, based on making a reasonable temperature rising pressure increasing scheme, a modern advanced in-situ monitoring technique is used, an automated technique is matched, and the change rule of indexes of water, ore, gas, organic matters and microorganisms in the process of the experiment are dynamically monitored, so that the lengthy geological process of the burial evolution of the argillaceous sediments can be retraced within limited time in a laboratory, what's more, the water-ore-gas-microorganism interaction mechanism in the evolution process can be revealed by simulating the change rules of the indexes in the process, the corresponding action model is established, and the contribution of sludge water release consolidation to the water volume and the water quality of a water-bearing layer in a clay water resisting layer (or clay lenticle) process can be quantitatively evaluated.

The invention discloses a method for predicting distribution and ratio of sedimentary particles. The method comprises the following steps: analyzing the density of a rock sample according to research area sampling or core data, and analyzing granularity of the rock sample to obtain data, including density and particle size distribution, of sedimentary components; from the view of sedimentary dynamic characteristics of sedimentary sand bodies, carrying out sedimentology investigation, and determining structural geologic characteristics, including physiognomy, and sedimentary dynamic control factors of the sedimentary sand bodies in a research area; according to different carrying ways of the particles, dividing the sedimentary components into two types, and calculating volume of sediments according to simulation representations of the sedimentary components; repeating the steps until simulation is finished, so that quantitative representation on the research area is realized; extracting data of each component from a result map simulated by a computer, calculating thickness and percentage content of each component according to density data, drawing a thickness distribution diagram and a content distribution diagram of all the components, and thus finally realizing prediction of the distribution and ratio of the sedimentary particles. The method disclosed by the invention has the advantage of being better in line with the practical geological process.

The invention discloses a simulation experiment device of oil-gas migration and accumulation process. The simulation experiment device of oil-gas migration and accumulation process is characterized inthat the upper part of the simulation experiment device is a three-dimensional stereo visual trap model made of transparent material, and is integrated with various types of traps such as fault type,an anticline type, and an updip wedge out lithology type; the traps can be filled with different particle sizes of glass bead to simulate sandstone reservoirs; the lower part of the simulation experiment device is a box body, and a fluid filling and discharging system connecting the trap model is arranged in the lower box body; the lower box body includes an electric water pump-water pipe-valve,an oil pump-oil pipe-valve, and a gas pump-gas pipe-valve, can effectively inject or discharge water, oil and gas for the trap model, and can reconstruct the oil-gas migration and oil-gas accumulationprocess; and the lower box body is also equipped with a supporting power system, so as to enable the whole body of a visual oil and gas reservoir model to encounter differential inclination and simulate changing of the accumulation condition. The simulation experiment device of oil-gas migration and accumulation process can effectively help the user to understand the three-dimensional space concept of the trap and the oil and gas reservoir, and can simulate the geological process of oil-gas migration and accumulation and influence factors of the geological process.

The invention relates to a structure capable of transmitting the horizontal force between neighboring independent basements in the engineering field of building fixing structures, which includes a first basement outer wall and a second basement outer wall that are neighboring, and is characterized in that a first bracket is arranged on the outer side of the first basement outer wall, a second bracket is arranged on the outer side of the second basement outer wall, and the first and the second brackets are arranged on the same horizontal elevation; the two ends of a horizontal force transmitting component are hinged onto the first and the second brackets; and backfill is effectively filled in the basement space on the periphery of the horizontal force transmitting component. By arranging the structure arranged on the outer sides of the two independent basements and capable of transmitting the horizontal force without influencing the sinking of the independent basements, the horizontal force transmission of the embedding action and geological process is ensured.

The invention discloses a numerical simulation-based gravity flow slumping block sedimentation simulation method. According to the method, calculation is performed through a Navier-Stocks equation anda momentum theorem to obtain a slope of a sand-mud layer during slumping and a speed and viscosity of sand during sliding; at the moment, a slumping block only has gravitational potential energy; inthe slumping process, original gravitational potential energy is reduced, so that the gravitational potential energy is converted into kinetic energy and internal energy; and melange is carried and sedimentated through a k-epsilon model under water to finally form the slumping block. The gravitational potential energy of sediments is gradually reduced to 0; the underwater flow speed is reduced, namely, the kinetic energy is reduced, and buoyancy force exists; and the gravitational potential energy and the kinetic energy are finally converted into the internal energy. According to the method, asimulative space is controllable; the cost is low; the consumed time is short; few man-made interference factors exist in the simulative process; different sedimentation environments can be simulatedand analyzed, and a quantitative parameter-based mathematical model can be built; the requirements of an actual geological process can be better met; and the demands of geological workers are met.

The invention relates to a robustness method based on storey drift, which comprises: regarding storey as a link of pillar relative to the overall framework importance coefficient proposing storey importance coefficient of pillar based on storey drift; the coefficient changes and quantizes the importance of the traditional pillar to the overall framework into specific story and numerical value thereof reflects impaction of pillar to the storey, especially the minus value represents the anti-seismic property of the pillar to the storey has negative influence; combining the coefficient with the storey vulnerability coefficient and establishing detailed index and method of assessing frame structure robustness. The conclusion based on the method can truly reflect the robustness of the practical project in different intensity geological process, point out the pillar of the storey of the overall framework robustness, and play a guidance role in the FRP reinforcement design of the overall framework robustness.

The invention belongs to the field of nuclear geology, and particularly discloses a method for constructing a metallogenic mode of a hydrothermal thorium deposit, which comprises the following steps of: 1, collecting and sorting the existing exploration and research data of the known hydrothermal thorium deposit; 2, analyzing and determining basic elements of mineralization of the known hydrothermal thorium deposit; 3, conducting field geological survey and sample collection on the known hydrothermal thorium deposit; 4, determining each metallogenic mode element by utilizing analysis test data and field survey data; 5, performing comprehensive research to construct the mineralization mode of the known hydrothermal thorium deposit. According to the method, key geological information of hydrothermal thorium deposit mineralization can be effectively determined, so that the geological process of hydrothermal thorium mineralization is simulated, and the mineralization mode is constructed for the known typical hydrothermal thorium deposit for the first time.

The invention discloses a dynamic simple shear apparatus of a servo cylinder-driven cubic articulated mechanism. The dynamic simple shear apparatus comprises a main machine part, a loading mechanism, and a measurement signal collecting and processing mechanism, wherein the main machine part is a core for applying a load to a sample; the loading mechanism comprises a vertical loading mechanism and a horizontal loading mechanism; the measurement signal collecting and processing mechanism is used for automatically controlling deformation, load signal input and sensor signal output. The device disclosed by the invention improves the structure of the existing dynamic simple shear apparatuses, and is simple and convenient to use and operate; a plurality of actual loading conditions of the scene can be simply and accurately simulated under the condition of pure shear deformation, so that the dynamic simple shear apparatus is suitable for researching a plurality of dynamics problems of rock-soil, such as geological process, and can directly research the relations between dynamic shear stress and dynamic shear strain under drainage and non-drainage conditions. In addition, the power cycle function also can be used for researching the damping ratio and the liquefaction characteristics.

The invention discloses a method for evaluating heavy metal pollution of bottom mud of a deep water reservoir. A judgment is made whether the heavy metal comes from human input or natural activity based on the heavy metal content and the variation coefficient. The heavy metal pollution of the reservoir bottom mud is evulated by combining a ground accumulation index method, a pollution load index method and an internal meso pollution index method. The pollution condition of the single heavy metal element at each point position and the comprehensive pollution degree of all heavy metal elements can be comprehensively known. According to the method, the ecological risk condition of the reservoir heavy metal pollution can be determined, and meanwhile, pollution of a certain heavy metal can be distinguished according to an evaluation result due to the influence of a natural geological process or human input, so that the history and the current situation of reservoir heavy metal pollution canbe comprehensively known, and theoretical support and method reference are provided for prevention and treatment of the reservoir water environment.

A method for producing a synthetic model for training a backpropagation-enabled process for identifying subsurface features, includes generating noise-free synthetic subsurface models with realizations of subsurface features. The noise-free synthetic subsurface models are generated by introducing a model variation selected from geologically realistic features simulating the outcome of a geologic process, simulations of geologic processes, and combinations thereof. Labels are applied to one or more of the subsurface features in one or more of the synthetic subsurface models. A simulation of a noise source is applied to a copy of one or more of the noise-free synthetic subsurface models to produce a noise-augmented copy. The labels and the corresponding synthetic subsurface models are imported into the backpropagation-enabled process for training.

The invention discloses and provides a process response-based quantitative prediction method of dissolution pore-increasing quantity of a clastic reservoir. According to the method, quantitative equations of pore response are constructed through finding out key geological factors of different geological processes, differences thereof and influences which are of all geological factors, in the different geological processes and on reservoir porosity, a pore evolution process under reservoir dissolution action is simulated on the basis of the quantitative response equations, influences which areof the dissolution action, in a sediment burial diagenesis process and on reservoir physical-property change laws are reproduced, and a basis is provided for oil reservoir evaluation.

The invention provides a diluent-free dating method for measuring phosphorite (U-Th)/He. The method comprises the following steps: firstly measuring and calculating the dimensions, volume and weight of to-be-tested phosphorite particles, then testing the content of 4He on a gas mass spectrograph, then using a nitric acid dissolution sample to prepare a solution, configuring a standard solution ofuranium and thorium with different concentrations, testing on an inductive coupling plasma mass spectrum and drawing a working curve, combining the working curve to calculate the concentrations of U and Th in the solution, and finally using the concentrations of uranium and thorium and the weight of the particles to calculate the content of uranium and thorium, so as to obtain the age of mineralsto be measured together with the content of 4He. Compared with an original dating year, the restricted problem of a diluent is solved; and through the calculation in the method, the age of the minerals to be measured is obtained, so that the method is applied to the research of geological process.

The invention provides a carbonate rock oil and gas reservoir forming geological process reconstruction method based on a dating technology. The method comprises the following steps: obtaining a rock sample in which carbonate diagenetic minerals are rich in hydrocarbon inclusions and the carbonate diagenetic minerals and asphalt have an associated relationship as a rock sample for reconstruction analysis of a work area oil and gas reservoir-forming geological process; identifying host minerals rich in hydrocarbon inclusions in a rock sample for analysis, performing isotope dating and cluster isotope testing to obtain the absolute age of the host minerals rich in the hydrocarbon inclusions, wherein the obtained absolute age data represents the time of a main reservoir forming period of an oil and gas reservoir; identifying carbonate diagenesis minerals associated with asphalt in the rock sample, and obtaining the absolute age of the carbonate diagenesis minerals through isotope dating so that the filling and cracking time of the crude oil is determined; and based on the crude oil filling, the cracking time and the main reservoir-forming time, reconstructing the oil and gas reservoir-forming geological process.

The invention provides a test device for ultrahigh-speed debris flow impact simulation under a weak Coriolis effect. The test device comprises an air box set, an electromagnetic valve module, a sliding groove-blocking device, a magnetic floating device, a soil body material box device, a soil body material box pneumatic acceleration-deceleration device and a pneumatic gate opening and closing device. The invention provides a feasible technical scheme for simulating the problem of ultra-high-speed landslide debris flow impact damage under the centrifugal weak Coriolis condition, well solves the problem of Coriolis effect in the traditional centrifugal simulation high-speed geology process, and can provide support for the research of related geological disasters on the structure impact effect. And comparison can be provided for simulating related problems of an ultra-high-speed geological process in a more complex centrifugation-Coriolis complex environment, and the method is used for evaluating the influence of the Coriolis effect.

The invention provides an ultra-high-speed debris flow impact simulation platform and method under a weak Coriolis effect. The ultra-high-speed debris flow impact simulation platform used under the weak Coriolis effect comprises a centrifugal machine, a test platform and a debris flow impact simulation mechanism. The debris flow impact simulation mechanism comprises an air box set, an electromagnetic valve module, a sliding groove-blocking device, a magnetic floating device, a soil body material box device, a soil body material box pneumatic acceleration-deceleration device and a gate opening and closing control device. The method comprises the steps of device performance calibration and impact test simulation. The Coriolis effect problem in the traditional centrifugal simulation high-speed geological process is well solved, support can be provided for research of related geological disasters on the structure impact effect, comparison can be provided for simulation of related problems of the ultra-high-speed geological process in a more complex centrifugal-Coriolis composite environment, and the method is used for evaluating the influence of the Coriolis effect.