163 results about "Igneous rock" patented technology

The invention is directed to a crumbly, water-absorbing, soil-like hydrogel. The hydrogel comprises finely comminuted mineral substances, such as igneous rock; water-soluble alkali-silicate; solid and liquid nutrient additives; and ballast, bound in a cross-linked polymer. The hydrogel is structured like a sponge and absorbs water and liquids when in contact with water or aqueous liquids. The mineral substances present in the hydrogel may be present in an amount of at least 30% by weight of the dried hydrogel. Also, the invention encompasses methods of producing acidic and neutral to weakly alkaline hydrogels.

The invention provides plugging cement slurry and an igneous rock fracture developing well plugging method. The water-solid ratio of the cement slurry is (85-92):100. The cement slurry comprises the following solid components in parts by weight: 115-125 parts of cement, 40-50 parts of weight-reducing agent flyash and 5-15 parts of stabilizing agent microsilica, wherein the cement comprises 100 parts of first cement components with average particle sizes being 12-14mu m and 12-18 parts of second cement components with average particle sizes being 6-7mu m; each liter of cement slurry further comprises 4-8g of plugging agent by volume; and the plugging agent comprises 0.1-0.2 part of staple fiber, 2-4 parts of rubbers and 3.2-6 parts of packing particles by weight. The cement slurry and the method have the beneficial effects that the bridging fiber materials, elastic rubber powder materials and shell and/or saw dust packing materials are combined for use, the cement slurry is suitable for igneous rock fracture developing wells and can meet the requirements of well drilling and well cementation constructions; and the construction time is greatly shortened by adopting the plugging technology idea of integrating packing, bridging and coagulation.

The invention provides an igneous rock oil and gas exploration method and an igneous rock oil and gas exploration device. The method comprises the following steps of generating crater position and igneous rock lithofacies information according to the position of an igneous rock reservoir and characteristic information; generating geophysical reflection characteristic data according to seismic facies analysis, and determining a distribution range of advantageous lithofacies; calculating a stratigraphic strike-slip distance of a deep igneous rock mechanism according to a matching relation of target stratum lithofacies of a volcanic edifice on two sides of a fracture and a corresponding relation of igneous rocks of a middle-shallow layer on the two sides of the fracture; analyzing logging response data of the igneous rocks, and generating advantageous lithology distribution information and thickness data of the deep igneous rock mechanism through natural gamma seismic inversion; acquiring a development part of the fracture of the igneous rock reservoir by using means such as deep and shallow resistivity difference inversion; and generating igneous rock oil and gas reservoir information in the development part through cluster analysis of seismic attributes and two-phase media-based oil and gas detection. By the invention, the accuracy of exploring and predicting the igneous rock oil and gas reservoir and the drilling success rate can be improved.

The invention discloses a complex lithology natural gas reservoir interval transit time discriminating method, and belongs to the technical field of acoustic logging information application. Formation lithology mineral composition, porosity, water saturation and formation water electrical resistivity factors are utilized to calculate an interval transit time theoretical value curve, the interval transit time theoretical value curve obtained through calculation is compared with an interval transit time curve measured actually, and a natural gas reservoir is discriminated according to the different features of the interval transit time theoretical value curve obtained through the calculation and the interval transit time curve measured actually. The complex lithology natural gas reservoir interval transit time discriminating method is especially suitable for being used in discrimination of natural gas reservoirs of clastic rock, carbonate rock, igneous rock and the like, good in application prospect and capable of improving discriminating effect of the natural gas reservoirs.

The invention discloses a method for comprehensive recognition of igneous rocks by employing gravity, magnetism, electromagnetism, and earthquake data. The method includes steps: building templates of different igneous rocks and stratum physical properties; performing forward modeling of gravity, magnetism, electromagnetism, and earthquake, and making clear of response characteristics and rules; performing gravity and magnetism anomaly extraction of the planes of the igneous rocks and weak anomaly enhancement processing, and explaining and dividing distribution zones and range of the planes of the igneous rocks; performing electrical and seismic profile data igneous rock target processing explanation and making clear of the distribution rule of the igneous rocks in the vertical direction; performing combined inversion of gravity, magnetism, electromagnetism, and earthquake data profile, and building a vertical distribution frame of the igneous rocks; developing three-dimensional inversion of the physical properties of the igneous rocks with gravity and magnetism anomalies by employing the profile combined inversion result and drilling data as the constraint condition and with the combination of plane distribution of the igneous rocks; and recognizing the space distribution and lithological and lithofacies distribution rules of the igneous rocks in a comprehensive manner with the combination of physical property combined characteristics of different igneous rocks according to the three-dimensional distribution of the physical properties. According to the method, comprehensive recognition of the igneous rocks is realized by employing various data, and the reliability is higher compared with the recognition of the igneous rock by employing single data.

The invention discloses a method for predicting igneous rock fractured reservoir on the basis of prestack forward azimuth trace gather. The method includes steps of determining an azimuth partitioning scheme; establishing a trace gather superposition super-face element; partitioning the trace gather superposition super-face element according to the azimuth partitioning scheme and superposing, checking superposition quality and repeating the above steps if the different azimuth seismic data energy error exceeds a limit value; shifting the different azimuth superposition data volume by means of static calibration superposition speed and integrating to obtain a result data volume; calculating relative wave impedance data volume and seismic attribute data volume; optimizing sensitive attributes to match anisotropism of fissures, and detecting a favorable zone of the fractured reservoir by combination of fluid. Longitudinal wave documents are acquired conventionally on the basis of wide azimuth, the growth characteristics of the fissures in the igneous rock can be detected by anisotropism analysis of the prestack azimuth trace gather, and prediction accuracy of the fissures in the igneous rock can be greatly improved.

The invention provides a method for obtaining a logging saturation of a low porosity permeability reservoir, belonging to the technical field of exploration and development of oil and gas fields. The method comprises the following steps: firstly, determining bond indexes m in the reservoir, which are corresponding to different resistivities, then building functional relationships between the resistivities and the bond indexes m, and finally obtaining an approximate solution of the gas saturation of the reservoir to further obtain a correct judgement on the type of the reservoir. The invention solves the current situation that the m variable calculated by the rock electrical experiment is difficult to guide the production application, and logging recognition problems of the air layer, the air and water layer and the water layer in the low porosity permeability reservoir. The method disclosed in the invention has a strong operability and research conclusion thereof is accurate and reliable. The method also raises the accordance rate of logging interpretation for the volcanic reservoir, and has excellent application values on the tight sand rock, the carbonate rock and the igneous rock reservoirs.

The invention relates to an asphalt-treated permeable-base (ATB) construction process. The ATB construction process is characterized in that: each raw material is obtained in a way that: coarse aggregate comprises crushed limestone produced by an impact crusher, fine aggregate comprises the crushed limestone with the particle sizes of less than 2.36mm, and a filler is produced by levigating hydrophobic stones such as highly-basic rocks and the like in limestone or magmatite; the asphalt distribution of a prime coat is 0.6 to 1.2 L/m<2>, and the asphalt distribution of a seal coat is 0.8 to 1.0 L/m<2>; when an asphalt mixture is mixed, asphalt is heated at the temperature of 155 to 165 DEG C, the mineral aggregate is heated at the temperature of 170 to 190 DEG C, the mixture is produced at the temperature of 155 to 170 DEG C, and reduction in the mixture storage temperature is not more than 10 DEG C; when the asphalt mixture is transported and charged, a vehicle is required to be moved forwards and backwards to realize balanced charging, and the temperature of the mixture is not lower than 150 DEG C when arriving at a pavement site; the temperature of an asphalt mixture paver screed is not lower than 80 DEG C, and the mixture is paved at the temperature of not lower than 140 DEG C at the pavement speed of 3 to 5 m/min; and rolling compaction is performed by three rolling compaction stages. The ATB construction process is simple and convenient to construct, and ensures relatively lower cost and high performance.

The invention discloses a multi-dimensional composite energy active material and a preparation method thereof. The material is composed of Muyu stone, tourmaline, medical stone, germanite, parmesan rock, igneous rock and ceramic clay. The preparation method of the multi-dimensional composite energy active material comprises the following steps: firstly, immersing parmesan rock powders with edible ethylic acid and then carrying out calcination, wherein the parmesan rock powders are crushed into nanometer grains; then carrying out high-speed stir and even mixing on the immersed parmesan rock powders and the balance of the nanometer grains of components and forming ball grains; finally, sintering the formed ball grains for 2-4 hours at the temperature of 800-1200 DEG C and carrying out disinfection by ultraviolet light and sterile packaging to obtain the material. The multi-dimensional composite energy active material in the invention can be applied to various water purification machines, water-quality filters and health cups. The drinking water treated by the material in the invention is no pollution, is rich in multi-mineral substances, has pH value in the range of 7.2-8.5, is microcluster water, has negative potential stability and qualifies with standards of high-quality drinking water.

The invention discloses a method for pre-cracking and softening of an igneous rock hard roof. While an upper coal seam is exploited, on the premises that the distance between upper and lower coal seams, rock stratum characteristics between the coal seams and the invasion condition of an igneous rock hard rock stratum are mastered, during exploitation of the upper coal seam, by reasonably forming drilling holes in a bottom plate of an upper working face and injecting a high-pressure acid solution, a fracture acidizing unit is used for controlling the pressure of injected acid solution, on one hand, the hard igneous rock stratum are cracked through pressure, and on the other hand, the igneous rock stratum is furthered softened through the chemical reaction function of the acid solution, so that the effect of safely and efficiently cracking and softening the hard igneous rock roof of the lower coal seam is achieved finally. According to the method, acid is injected while the upper coal seam is exploited, the structure of the hard roof of the lower coal seam is broken, and the strength of the hard roof is lowered; and possible hazards of the igneous rock hard roof to normal exploitation of the working face, staff and equipment can be reduced or even avoided during exploitation of the lower coal seam.

The invention relates to a low-hole extra-low-permeability unconventional reservoir dissolution hole identification method, and belongs to the field of petroleum exploration and development; and according to the core physical property analysis data of the target area unconventional reservoir cored interval, the corresponding relation of the unconventional reservoir dissolution hole development section to the porosity and the permeability is built, the well log response characteristics of the target area unconventional reservoir cored interval dissolution hole development section are determined, the porosity explanation model of the target area unconventional reservoir dissolution hole is built, and the target area unconventional reservoir dissolution hole is identified and evaluated. The unconventional reservoir dissolution hole identification method, built based on the core data and the log data, preferably evaluates the sandstone reservoir dissolution hole, is better in identifying and evaluating effect on dissolution holes of a carbonate reservoir, an igneous rock reservoir and a shale reservoir, and is low in cost, easy to be promoted and wide in application prospect.

The invention relates to the field of geothermal development, and provides a pressure crack network design and completion method for an enhanced geothermal system. The method comprises the steps thatthe upper portion of an igneous rock type hot dry rock is reached through drilling, a horizontal well section is drilled by using a guiding well drilling technology, multi-stage segmented hydraulic fracturing is utilized, a horizontal crack network is produced by utilizing layer-shaped brittle components in an igneous rock body, two horizontal branch wells located on the same horizontal plane witha water injecting well section are drilled at the end of the horizontal well section of a water injection well, the rear end of a crack of the horizontal well section of the water injection well after fracturing is conducted is penetrated to complete docking, a horizontal crack network passage with high seepage is constructed, fluid can enter in a well tube along the crack on which fracturing isconducted, and energy utilization can be conducted after the fluid is exploited to the ground surface. By adopting a branch well, a micro vibration detection and processing system and a hydraulic fracturing technology, a hot dry rock storage layer is effectively recognized, the storage layer is opened to the maximum extent, geothermal energy of the hot dry rock storage layer is fully utilized, andthe exploiting efficiency of the geothermal energy is significantly improved.

The invention discloses a method for prospecting a pegmatite rare metal. The method comprises the following steps of preliminarily identifying a pegmatite vein space distribution by use of high-precision remote sensing interpretation according to a regional geological background and a magmatic rock distribution region; performing geological survey by use of a large 1:10,000 scale; accurately plotting a pegmatite vein distribution law graph to preliminarily screen out a pegmatite vein distribution region; performing stream sediment measurement in a ratio of 1:25,000 and large-scale high-precision magnetic measurement, delineating a rare element stream sediment anomaly distribution diagram and a high-precision magnetic measurement anomaly diagram; deploying a lithogeochemical profile in a ratio of 1:5,000 in a key anomaly section for control tracing, preliminarily and optimally marking out a pegmatite-containing vein material; deploying an exploratory trench for disclosure control to mark out a mineralized body or an ore body; preferably optimally deploying a drilling hole for the pegmatite vein with high grade and large scale according to characteristics of the mineralized body or the ore body to perform deep verification, and specifically delineating the ore body.

The invention discloses a deep-hole backward grouting and water-blocking construction method for an igneous rock water-rich fault. An advance exploratory drilling technology is adopted to prove a fracture zone of the water-rich fault, after deep-hole backward advanced pre-grouting and primary water blocking, tunneling construction is quickly conducted to pass through the fracture zone of the fault, and in a tunnel area of a water-rich section, full-face deep-hole backward little tremie grouting and secondary water blocking is adopted. According to the characteristics that the fracture zone ofthe igneous rock fault is large in fracture aperture and high in connectivity, the deep-hole backward grouting method is adopted to change the way that a little tremie conducts segmented grouting at the positions of grouting holes from far to near in the order of I, II, III, IV......, the grout on the upper stage is deposited and solidified to achieve an enhancing effect on deposition and solidification of the grout on the next stage, finally, cracks are sufficiently filled with the grout, the water-blocking aim is achieved, the problem that in the prior art, igneous rock tunnel construction is conducted to pass through the water-rich fault, water is difficult to block is solved, and the full-face deep-hole backward grouting method is provided for the difficulty of grouting and water blocking in the process that tunnel construction is conducted to pass through the fracture zone of the water-rich fault in the igneous rock.

The invention relates to the technical field of well logging interpretation and relates to an igneous rock well logging multi-factor interpretion method. The method comprises the steps of (1) establish an igneous rock well logging interpretation database, (2) extracting a gas logging sensitive parameter and a rock pyrolysis sensitive parameter, (3) establishing an igneous rock gas logging oiliness index model, (4) establishing a rock pyrolysis parameter combination model, and (5) intersecting the gas logging oiliness index model and the rock pyrolysis parameter combination model to establish a well logging multi-factor interpretion plate. The invention is the well logging multi-factor interpretion method on the basis of gas logging and rock pyrolysis data, through extracting the gas logging sensitive parameter and the rock pyrolysis sensitive parameter, by using multiple gas logging well logging parameter fusion, a new parameter-gas logging oiliness index reflecting reservoir oil gas containing abundance is established, the gas logging oiliness index model and the rock pyrolysis parameter combination model are established, the application effect of the method in the aspect of igneous rock reservoir fluid property identification is good, and the well logging interpretation coincidence of an igneous rock reservoir is improved.

The invention belongs to the technical field of uranium ore mineralization potential evaluation, and particularly discloses an evaluation method suitable for judging a sandstone type uranium ore uranium source in a basin. The evaluation method comprises the steps of: (1) collecting an ore-containing target layer sandstone sample; (2) selecting chippings zircon in the sample to prepare a zircon target; (3) testing the U-Pb isotope and U element content of zircon; (4) acquiring a zircon isotopic age histogram and a zircon U-Pb isotopic age and U content element diagram according to the U-Pb isotope and the U element content; (5) providing a source magmatic rock age range and geographical distribution characteristics for the ore-bearing target stratum sandstone according to the analysis in the step (4); (6) finding out the age range of the detritus zircon with the highest U content and particle number ratio according to the U-Pb isotopic age of the zircon and the U content element diagram, and determining a uranium source in a pre-enrichment stage in combination with the step (5); and (7) determining a uranium source in the mineralization stage according to the steps (5) and (6). Theevaluation method provided by the invention can be used for judging uranium sources in sedimentary diagenetic and mineralization action stages of the ore-bearing target layer.

The invention provides a rare metal ore deposit prospecting method based on geological and geophysical technologies. Overlapped areas of structure intersection positions, mesozoic igneous rock bodies,high gravity value anomalies, and medium and high magnetic anomalies in province ranges are delineated as metallogenic prospect areas. Through combination of a rock geochemistry anomaly graph, metallogenic target areas of rare metal ore deposits are further delineated. An induced polarization method and high precision magnetic measurement are carried out in the target areas. Isolines of earth surface apparent resistivity and relative magnetic field values are drawn on a map. Overlapped areas of high apparent resistivity and high magnetic field values are delineated as metallogenic enriched sections. Audio magnetotelluric sounding and radon gas radioactive detection are carried out in the sections. Space distribution states of the ore deposits in the sections are delineated according to characteristics of high resistance, high gravity, high magnetic force and high radon gas. Suitable positions are selected for explosion of ore bodies. According to the method, through combination of thegeophysical technology, an ore body is precisely positioned, and a macroscopic to microscopic step-by-step prospecting ideal is embodied.

The invention discloses a method for determining an effective excitation region in seismic exploration acquisition. The method comprises the following steps of: determining a lighting shadow region of a target body by using a wave equation lighting algorithm; placing a plane wave excitation source on a target horizon; obtaining a lighting intensity amplitude value for upward lighting at the shadow region on ground; normalizing and smoothing the lighting intensity amplitude value; determining the optimal ground surface excitation point distribution section; and increasing the number of the excitation points on the original basis according to an integral interval of a spacing to newly determine the effective excitation region. According to the method, the problem of way of rationally distributing the excitation points on a target stratum is solved by using seismic wave lighting analysis, rational distribution of the positions of the excitation points for seismic acquisition is facilitated, and the quality for original data of the seismic exploitation can be improved. The method is particularly suitable for complex target exploitation regions of salt dome structures, over-thrust nappe structures, igneous rocks and the like.

The invention provides a horizontal segment blast cracking and chemical weakening method for igneous rock in a thick coal seam. The method comprises the following steps: forming water injection drilling holes and a plurality of V-shaped grooves on one sides, close to working surfaces, of a tail entry and a haulage entry; carrying out a sampling test on the igneous rock, configuring a corresponding chemical solution, and determining the concentration, solution injection volume and solution injection time of the chemical solution; and then carrying out charging, stemming and sealing, and connecting a detonating cord for blasting. According to the invention, a physical method and a chemical method are combined, so that the general problem of difficult pushing of the igneous rock in the coal seam of the existing coal mine is solved; and the process is simple, the cost is low, the benefit is good, and the safety production of the coal mine is realized to the maximum extent.

The invention relates to a drilling fluid for drilling of a fractured igneous rock formation and a preparation method of the drilling fluid in the field of petroleum drilling. The drilling fluid is prepared from components in parts by weight as follows: 1,000 parts of water, 3-4 parts of drilling fluid bentonite, 2-3 parts of sodium carbonate, 2-3 parts of a polymer coating agent, 2-3 parts of potassium polyacrylate or a metal cation polymer, 5-10 parts of an organic amine inhibitor, 20-30 parts of an anti-sloughing reinforced wall fixation agent, 20-30 parts of sulfonated phenol formaldehyderesin, 5-10 parts of a sulfonate copolymer filtrate reducer, 20-30 parts of walchowite, 10-20 parts of an anti-salt and temperature-resistant fluid loss agent, 20-40 parts of superfine calcium carbonate, 50-70 parts of potassium chloride, 0-10 parts of an organic anti-friction compound and 10-20 parts of a nano-micro blocking agent, and the weight is increased to 1.30-1.85 g/cm<3> with a density weighting agent. The drilling fluid has good temperature resistance and lubricating property and excellent inhibition property and anti-sloughing wall fixation property and can effectively prevent thefractured igneous rock formation from collapsing; the rock carrying capability of the drilling fluid can be substantially improved, repeated grinding of larger falling blocks nearby a drill bit is prevented, the frictional resistance is reduced, the mechanical drilling speed is increased, and underground safety is guaranteed.