178 results about "Sedimentary rock" patented technology

A disposable downhole tool is disclosed. The tool is suitable for use as a frac tool. The tool includes a housing having an inner wall surface defining a bore. The tool also includes a valve structure disposed within the bore, the valve structure comprising a disposable plug seat, the disposable plug seat comprising a first natural material. The disposable tool may also include a disposable plug in fluid sealing engagement with the seat, the plug comprising a second natural material, the plug and the plug seat comprising a plug valve. The first and second natural materials may include sedimentary rock, such as various forms of limestone, including Carrara marble or Indiana limestone.

The invention relates to an exploration method of faulted basin slope oil reservoir distribution and belongs to the field of oil exploration technology. In allusion to the later period of faulted basin exploration, through statistics of related information of source rock, fluid potential, sedimentary rock phase and fault in a target area and according to the principle of source potential conduction, the above information is comprehensively analyzed so as to determine a favorable oil reservoir distribution area in the target area. Forward oil control exploration limitations are broken and are shifted to negative structure and positive structure. Comprehensive analysis is carried out according to an oil source, fluid potential, sedimentary facies distribution and fault occurrence in the area, the slope is evaluated, and a favorable exploration target area is selected.

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 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.

The present invention relates to assays for ascribing catalytic activity to rock samples by virtue of zero-valent transition metals potentially being present within the sample. Embodiments of the present invention are generally directed to novel assays for measuring intrinsic paleocatalytic activities (k) of sedimentary rocks for converting oil to gas and projecting the activities to the subsurface based on the measured linear relationship between ln(k) and temperature (T).

The invention provides a mixed reservoir water flooding degree logging interpretation method based on sedimentary micro-facies and lithofacies. The method includes the steps: finely comparing and dividing stratums; performing classification research of the micro-facies-lithofacies; building a four-property relationship chart of each facies zone, building a logging interpretation model suitable fora research area according to the micro-facies-lithofacies, taking a micro-facies-lithofacies discrimination model as bases to process actual data, and analyzing differences of reservoir logging interpretations on the basis; researching mixed reservoir water flooding condition by a water flooding layer quantitative evaluation method based on a entropy weight, building a mixed reservoir water flooding layer comprehensive evaluation standards, dividing oil layer water flooding grades, and summarizing a water flooding mode of an interest interval. According to the method, the producing degree ofout-of-control reservoir reserve of a mixed reservoir and final recovery rate are increased, a decreasing range of field output is effectively reduced, a stable yield deadline of an oil field is prolonged, ultimate reservoir recovery rate of the reservoir is obviously increased, and remarkable development effects and benefits are acquired.

The invention discloses a mixed sedimentary rock classification and naming method based on content of three-end-member minerals. The upper limit value of the content of exogenous fragments in mixed sedimentary rock is determined according to effective productivity; according to rock components, a three-end-member classification scheme is determined; naming is conducted, wherein according to the contents of the rock components, basic names are determined, and then cement and special structures or diagenesis serve as modifiers to participate in naming; according to a specific naming rule, the basic names are determined respectively according to the mixed sedimentary rock with different main components, when the content of auxiliary minerals is 25-50%, 'material' serves as the additional modifier, and when the content of the auxiliary minerals is smaller than 25%, 'containing' serves as the additional modifier. In the method, the upper limit value of the content of exogenous fragment particles is determined according to effective productivity, the mixed sedimentary rock is named by means of the three end members including exogenous fragments, endogenous fragments and a carbonate interstitial material, a scientific classification system framework suitable for actual production application is constructed on the basis of taking sedimentary causes into consideration, and basic data can be provided for mixed sedimentary environment analysis.

The present invention relates to assays for ascribing catalytic activity to rock samples by virtue of zero-valent transition metals potentially being present within the sample. Embodiments of the present invention are generally directed to novel assays for measuring intrinsic paleocatalytic activities (k) of sedimentary rocks for converting oil to gas and projecting the activities to the subsurface based on the measured linear relationship between ln(k) and temperature (T).

The present disclosure provides a diffusive gradients in thin films (DGT) probe test device for a sediment core in a lake, including: a sampling tube, where, a settlement limit device is disposed on an outer wall of the sampling tube and a DGT probe and a multi-parameter water-quality detection electrode are installed within the sampling tube; a movable mudguard device comprising a connecting rod and a mudguard, where, the connecting rod rotates around a rotating shaft to drive the mudguard to move from a position where an opening at the lower end of the sampling tube is sealed to a side of the sampling tube; a position-limit mechanism removably installed outside the sampling tube; a hammering device located above the sampling tube and fixedly connected to the sampling tube; and a floating ball located above the hammering device and connected to the hammering device via a first pull rope.

A method of making a glass product comprising: providing a feedstock formed from at least one sedimentary rock comprising at least two minerals suitable for making the glass product; melting the feedstock to form a melt; and forming a glass product from the melt.

A method is disclosed for identifying a sediment accumulation from an image of a part of the earth's surface. The method includes identifying a topographic discontinuity from the image. A river which crosses the discontinuity is identified from the image. From the image, paleocourses of the river are identified which diverge from a point where the river crosses the discontinuity. The paleocourses are disposed on a topographically low side of the discontinuity. A smooth surface which emanates from the point is identified. The smooth surface is also disposed on the topographically low side of the point.

The invention discloses a palaeogeomorphology restoration method in sedimentary period based on seismic reflection amplitude analysis. The method comprises the following steps: basic data collection;rock core calibration; single well synthetic record production and calibration and research of a target stratum; establishment of paleogeomorphology restoration well grid section; finding a lithologicinterface which is obviously related to the ratio of grainstone to stratum; establishment of a wedge forward model; summarizing correlation between thickness and amplitude of the established model; extraction of the amplitude; refitting of a correlation curve; evaluation of single well agreement rate; 3D visualization display of the extracted amplitude attribute diagram; and correction of three-dimensional paleogeomorphology to obtain accurate and quantitative three-dimensional paleogeomorphology. The advantages are that the method solves the problem that a conventional method relies on specific stratigraphic combination and seismic horizon tracking accuracy, and breaks the limitation that if there is no continuous tracking reflection interface above and below the target stratum, the sedimentary paleogeomorphology of the target stratum cannot be accurately restored; and seismic interpretation workload is reduced, and accuracy of paleogeomorphology restoration is improved.

A sample of sedimentary rock and a sample of total organic matter isolated from the rock are heated in a sequence under an inert atmosphere and quantities of hydrocarbon-containing compounds, CO and CO₂ released by each sample are measured. The residue from each sample originating from heating under an inert atmosphere is subjected to a heating sequence under an oxidizing atmosphere, and quantities of CO and CO₂ released by each residue are measured. A quantity of hydrocarbon-containing compounds in free form in the rock is determined from measurements is carried out, from a quantity of hydrocarbon-containing compounds in free and retained form of the rock sample and a quantity of hydrocarbon-containing compounds in retained form in a sample of organic matter. The invention is used for oil exploration and exploitation.

A lithofacies analysis method for continental facies fine-grained sedimentary rocks includes classifying lithofacies according to the lithology or lithological association mode, the content of organiccarbon, the content of silicon and the content of calcium, and establishing lithofacies classification rules; extracting a core of a to-be-analyzed fine-grained sedimentary rock, identifying a lithology or lithological association interface in the core, and determining the lithofacies type of the to-be-analyzed fine-grained sedimentary rock according to the lithology or lithological association and the lithofacies classification and naming rules; determining the characteristic parameters of each type of lithofacies, determining the favorable lithofacies, and establishing logging evaluation criteria of the favorable lithofacies. The lithofacies analysis method has the advantages that the lithofacies is classified according to the lithological association mode, the abundance of the organiccarbon, the abundance of the silicon and the abundance of the calcium, the lithofacies classification rules are established, and accordingly, the lithofacies analysis method can be applied to the continental facies fine-grained sedimentary rocks.

The invention relates an identification method of andesine in a fine settlement (sedimentary rock), comprising the following steps: putting a rock slice under an orthogonal polarizing microscope; putting the object under test in an extinction position; rotating the objective table 45 DEG to allow the long axis of the object under test to be angled 15 DEG from the cross wire of the second quadrantand the fourth quadrant in the eyepiece of the microscope; inserting a gypsum test panel; allowing the long axis, which is a small refractive index, of the object under test to be overlapped with a small refractive index X of the gypsum test panel, acquiring andesine which has an interference color of blue, and detecting the content of andesine that has an interference color of blue with area visual assessment percentage method; then rotating the objective table 90 DEG to allow the long axis of the object under test to be angled 15 DEG from the cross wire of the first quadrant and the third quadrant in the eyepiece of the microscope; allowing the long axis, which is a small refractive index, of the object under test to be overlapped with a large refractive index Z of the gypsum test panel, acquiring andesine which has an interference color of yellow, and detecting the content of andesine that has an interference color of yellow with area visual assessment percentage method. According to the invention, the andesine in the fine-particle settlement (sedimentary rock) can be identified rapidly and accurately.

The invention relates to a method and to a device for sulfur characterization and quantification in a sample of sedimentary rocks or of petroleum products wherein the following stages are carried out: heating said sample in a pyrolysis oven (1) in a non-oxidizing atmosphere, oxidizing part of the pyrolysis effluents and continuously measuring the amount of SO₂ generated by said part after oxidation, then transferring the pyrolysis residue of said sample into an oxidation oven (1′) and continuously measuring the amount of SO₂ contained in the effluents resulting from said oxidation heating.