3487 results about "Structure of the Earth" patented technology

A method for mapping a complex sedimentary basin is disclosed. A grid representative of the current architecture of the basin is constructed. A mechanical structural restoration is applied in three dimensions so as to reconstruct the past architectures of the basin from the current time up to a geological time t. A simulation of the geological and geochemical processes that govern the formation of a petroleum reservoir is then carried out, directly in the grids obtained from the restoration, from the geological time t to the current one. This simulation is thereafter used for mapping the sedimentary basin so as to identify zones of the basin where hydrocarbons may have accumulated.

The invention provides a gas pool prediction method and system of a carbonate reservoir based on pore structure characteristics. The method comprises the following steps: collecting a rock sample of a target reservoir section of the carbonate reservoir; authenticating geological thin sheets of the rock sample so as to obtain rock basic parameters comprising the rock constituents, the pore shape, the surface porosity and the sedimentary phase belt; carrying out pore permeation measurement on the rock sample so as to obtain pore permeation basic parameters comprising the porosity, the permeation rate and the density; constructing a rock bare-bone model according to the rock basic parameters, the pore permeation basic parameters and a differential equivalent medium model; carrying out fluid replacement on the rock bare-bone model so as to generate a rock physical plate; acquiring prestack seismic inversion data of the carbonate reservoir; intersecting the prestack seismic inversion data and the rock physical plate, thereby obtaining the prediction results of the porosity and the gas saturation of the carbonate reservoir. The accurate quantitative gas pool prediction is realized.

The invention relates to a large-diameter tube curtain support underground excavation construction super-shallow burying large-section subway station structure and a construction method, belonging to the field of tunnel and underground engineering construction. The structure and the construction method are mainly characterized in that underground excavation subway station construction can be realized under the super-shallow burying condition without affecting ground traffic and constructed structures. The structure is structurally formed in a mode that a large-diameter flange circular steel tube curtain supports are employed on the top part, fender posts are employed on sides, the large-diameter flange circular steel tube curtain supports on the top and the fender posts on the side are organically combined together through top beams so as to form primary support, and inner hole soil bodies are excavated and secondary structures are cast based on the primary support. Compared with the conventional shallow-burying underground excavation engineering method, the structure and the construction method can remarkably reduce station burying depth, lower the engineering cost and realize underground excavated three-layer or multi-layer underground structures; in addition, the top part of a subway station constructed by using the conventional shallow-burying underground excavation engineering method is generally in an arch structure, the spatial utilization rate is low, however, the construction method breaks through the limit, stations constructed by using the method are all in rectangular cross sections, and the top part of the constructed subway station is in a horizontal plane, so that the spatial utilization rate is greatly improved.

The invention relates to a penetration type multifunctional submarine sediment in-situ observation probe rod, including a static sounding probe, a resistivity measuring module, a deformation measuring tube and a control cabin which are connected in sequence from bottom to top. The resistivity measuring module includes a resistivity measuring module main body, and point electrodes are distributed at equal intervals on the outer circumferential surface of the resistivity measuring module main body. The deformation measuring tube is of a tubular structure, includes a deformation rubber tube and embedded pore water pressure sensors inside the deformation rubber tube, eight stress and strain measuring optical fibers are distributed at equal intervals along an axial direction on the outer wall of the deformation rubber tube, a row of water drainage holes are distributed along the axial direction, and each water drainage hole is connected with an embedded pore water pressure sensor. The penetration type multifunctional submarine sediment in-situ observation probe rod provided by the invention can realize CPTU detection and can also perform long-term in-situ observation, and add dynamic change process observation of pore water pressure and sediment deformation of different depths; and deformation observation and pore pressure observation are effectively combined, and taking static sounding data for reference, and a dynamic change process mechanism of seabed sediments are interpreted from different angles.

Titanium-based thermal ground planes are described. A thermal ground plane in accordance with the present invention comprises a titanium substrate comprising a plurality of pillars, wherein the plurality of Ti pillars can be optionally oxidized to form nanostructured titania coated pillars, and a vapor cavity, in communication with the plurality of titanium pillars, for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane.

The invention discloses a multifunctional super-surface structure based on polarization, a super-surface element and an encryption method, wherein the multifunctional super-surface structure comprisesa transparent substrate and a metal nano-brick array; the metal nano-brick array comprises a plurality of nano-bricks distributed on the substrate in an array mode; the surface of each nano-brick, away from the substrate, is a working surface; the substrate is divided into a plurality of square substrate units by the nano-bricks; the nano-bricks and the corresponding substrate units form nano-brick units; the geometric parameters of the nano-brick units comprise the lengths and widths of the nano-bricks and the side lengths of the substrate units; and the geometric parameters of the nano-brick units are configured as follows: when two first linearly polarized beams with polarization directions perpendicular to each other are incident on the working surface in a perpendicular mode, the reflection rate of one of the first linearly polarized beams is the highest, the transmissivity of the other first linearly polarized beam is the highest. The structure can simultaneously and independently control the phase of transmitted light and the light intensity of reflected light.

The invention discloses a multiple-stratum-series tight sandstone gas reservoir well spacing method. The method includes the following steps that first, based on high-resolution sequence stratigraphy, distribution of sand bodies is depicted, an effective reservoir stratum is predicted through the earthquake and well logging technology, and an enrichment region is preferentially selected; second, based on a favorable region, a longitudinal structure of the sand bodies is fine dissected through the geology and well logging technology, and therefore the horizontal distribution law of the sand bodies can be researched; third, in the preferential favorable region, well spacing is performed according to conditions. The well spacing method is reasonable and takes the complex geology that multiple gas-bearing series longitudinally develop in an upper palaeozoic tight sandstone gas reservoir, the single layer yield is low and the lateral variety of the reservoir stratum is fast into consideration, the drilling success of a development well can be guaranteed, the development effect can be improved to the maximum extent, and the economical and effective development of the tight sandstone gas reservoir is achieved.

An integrated style shear apparatus for rock structural plane comprises a frame system, a vertical loading system, a horizontal loading system, and a shearing system. Both the vertical loading system and the horizontal loading system are fixed on, and the shearing system is installed inside the frame system. The shearing system is used to prepare the sample of structural plane and actualize the shear test, the vertical loading system and the horizontal loading system are used to provide normal stress and shear stress for the shearing system respectively. The present invention also provides an experimental method by using the integrated style shear apparatus for rock structural plane, and steps of the method including: sample placement, sample adjustment, sample preparation, sample loading, instrument hookup, exerting normal stress, exerting horizontal stress, measurement and description of shear area, repeating experiment, and normal stress and shear stress calculation. The present invention can effectively reduce sample preparation error and experimental error, and can rapidly and accurately determine shear strength and deformation parameters of rock structural plane.

The invention belongs to the technical field of foam performance study chip analysis, and mainly relates to a glass medium model that imitates a rock core structure and can be used for foam flooding and percolation mechanism study in tertiary oil recovery. The glass medium model includes a first liquid inlet pool, a second liquid inlet pool, a glass substrate, coverglass, a drainage hole, a drainage pool, a drainage pool channel, a micro channel imitating the rock core structure, a first liquid inlet hole, a second liquid inlet hole, a microbubble generation module and a microbubble splitting module. Specifically, the micro channel imitating the rock core structure is etched on the glass substrate; the first liquid inlet hole, the second liquid inlet hole, and the drainage hole are respectively disposed at two ends of the coverglass; the two liquid inlet holes are communicated with the microbubble generation module respectively through the two liquid inlet pools; the microbubble generation module is communicated with the microbubble splitting module; the microbubble splitting module is communicated with the micro channel imitating the rock core structure; and two ends of the drainage pool channel are respectively communicated with the tail of the micro channel imitating the rock core structure and the drainage pool, and the drainage pool is communicated with the drainage hole.

Aspects of the disclosure are directed to a system for an aircraft comprising: a titanium bottle section that includes at least two sections configured to house an engine, and at least one bifurcation panel coupled to the bottle section, wherein the at least one bifurcation panel includes a material that is different from titanium.

The present invention is concerned with a procedure to quantitatively determine both, total and effective porosity of carbonated sedimentary rocks, and is based on the elaboration of molds of the rock pores-structure and on the determination of the volumetric and gravimetric properties of the rock and its mold.

Determination of the effective porosity is achieved by using an original formula, developed by the authors of the present invention.

Additionally, the structure of micro and nanopores in the rock is characterized by scanning electron microscopy (SEM), to identify relevant properties for permeability analyses such as: dimensions, shapes, type of connections, pore-structure patterns and pore throats. These and other parameters are used as indicators of the reservoir production and storage capacity.

The invention provides a method for preparing nanometer graphene materials in a large scale mode through hydraulic shearing. The method includes the steps that graphite powder is added into liquid, a small number of oxidizing agents are added, oxidizing agent molecules rapidly and alternately enter graphite through a multifunctional grinding dispersion machine in an inserted mode, a high shear emulgator and a high-pressure homogenizer which are connected in series, and the materials are sheared and peeled under the hydraulic effect through continuous mechanical force, and are rapidly layered. The problem that graphene can not be prepared in a large scale mode with high quality and low cost at present is solved, it is guaranteed that the graphene structure is not damaged, and the obtained graphene can be widely applied to the lithium battery field, the super capacitor field, the polymer composite material field, the heat-conduction and heat-radiation film field, the functional coating field, the national-defense and military-industry field and the like.

The invention relates to a method for constructing a deep pool and a shoal in a straight river channel. In the method, a spur dike is arranged on the left bank side of the straight river channel, a bank slope on the opposite bank of the spur dike is protected by riprap, a diving guide wall is arranged on the left and right banks of the downstream side of the spur dike respectively, the discharge cross section of the river channel is shortened by the spur dike to increase the flow rate of water flow, the bottom of a river bed of a river reach between the diving guide walls on the downstream side of the spur dike is continuously scoured to naturally form the deep pool, and a dead water area or slow flow water area formed between the diving guide wall and the river bank becomes the shoal through long-term deposition. The method has the advantages that: the deep pool is naturally formed and becomes a rest place for aquatic organisms such as fishes and the like, and can become a shelter for the aquatic organisms such as the fishes and the like in a flood period; plants can be planted on the shoal, and the shoal can become an organism habitat different from the deep pool; and the complexity of a river channel structure and water conservation condition diversity can be increased or repaired, and river biodiversity, population composition and rare species conservation are facilitated.

The invention relates to an underground excavation construction method for expanded excavation of a station on the basis of a metro regional shield tunnel. The structural form of the station formed through expanded excavation is a simple support framework wall column type double-layer metro station; piles in a row and a water stop heavy curtain or an underground continuous wall are used for blocking soil and water, and the lateral deformation of soil bodies is resisted; soil bodies between openings of parallel shield tunnel duct pieces are excavated, and a transverse passage is constructed; uplift piles, wall columns, a bottom plate, a middle upright post foundation and transverse support beams arranged between the wall columns are constructed in the transverse passage; the bottom plate is connected with the bottom of each wall column; the soil body above the tunnel is subjected to grouting reinforcement; an underground excavation reverse operation method is adopted for constructing the station main body structure; the station main body can be entered through a vertical shaft or the transverse passage built at an entrance and exit; and a small guide holes and the station top structure are constructed. The problem of low use efficiency of shield equipment is solved. The method has the advantages that huge economic benefits, social benefits and environmental benefits are brought; and important engineering application values and development prospects are realized.