118 results about "Lithic fragment" patented technology

The invention discloses a complex lithology clastic rock stratum constituent logging processing method which comprises the following steps: determining whether a stratum contains coal according to logging curve characteristics and respectively processing stratigraphic classification according to the situation that whether the stratum contains coal; calculating the contents of feldspar quartz, coal and porosity when the stratum contains coal; and calculating the contents of the feldspar quartz, calcium, rock debris and the porosity by applying a mixed lithology calculation method when the stratum contains no coal. The complex lithology clastic rock stratum constituent logging processing method solves the problems of coal-bearing stratum identification and coal-bearing stratum constituent calculation and also solves the problem of calculating three rock constituents in the coal-free stratum and the porosity by applying two porosity logging curves.

The invention discloses a carbonatite lithology identification method, and belongs to the technical field of petroleum and gas exploration and development. The carbonatite lithology identification method includes the steps that the Ca element content and Mg element content in a rock debris sample are detected, and the ratio of Ca element content to the Mg element content is calculated according to the formula R=Ca / Mg; when R is larger than 59.4, carbonatite is pure limestone; when R is larger than 10.8 and smaller than or equal to 59.4, the carbonatite is limestone containing dolomite; when R is larger than 4.7 and smaller than or equal to 10.8, the carbonatite is dolomite limestone; when R is larger than 2.6 and smaller than or equal to 4.7, the carbonatite is calcite dolomite; when R is larger than 1.8 and smaller than or equal to 2.6, the carbonatite is dolomite containing calcite; when R is larger than or equal to 1.8, the carbonatite is pure dolomite. The carbonatite lithology identification method is easy to operate, accurate in lithology identification result, capable of correctly guiding deploy of a petroleum and gas horizontal well of a carbonatite reservoir and increasing economic benefits of petroleum and gas exploitation of the carbonatite reservoir.

The invention provides a method for searching for a deeply-buried solid sylvite ore deposit and belongs to the mineral exploitation technology. The method includes the steps that firstly, the exploration drilling positions are arranged, wherein an anticline structure is found in a predicted sylvite ore deposit exploratory area, the highest point and the second high point are determined in the axial direction of the anticline structure, and the positions of drilling holes are arranged; secondly, drilling and sampling are conducted, wherein ore samples are acquired after drilling operation and drilling liquid does not contain potassium ions; thirdly, judgment is conducted, wherein ore samples acquired after drilling are observed, whether a lode containing potassium is found or not and whether a potassium-containing index occurs or not are judged; if an observation result in the third step shows the potassium-containing index, the exploratory area can be drilled continuously; if the observation result does not show the potassium-containing index, drilling operation is stopped, and the first step, the second step and the third step are conducted on another sylvite ore deposit exploratory area, wherein observation of the ore samples acquired after drilling means that drilling mud samples, rock debris samples and / or rock core and dyke samples are observed. By the adoption of the method, ore searching cost can be effectively reduced and the ore searching success rate of concealed potassium ores can be increased.

The invention discloses an integrated drilling tool for crushing and cleaning a drilling borehole rock debris deposit bed, and relates to the field of drilling tools. A scraping and cleaning short joint is a columnar pipe body, more than one convex edge spiral wing is longitudinally arranged on the annular wall of the scraping and cleaning short joint, the convex edge spiral wings are longitudinally arranged in a V-shaped circumferential interval mode, hard alloy convex blocks are evenly distributed on the edge faces of the convex edge spiral wings, the two ends of each V-shaped convex edge spiral wing are connected with cutting edges which are sunken inwards and warped outwards, and columnar cutting teeth are arranged on the surfaces of the cutting edges; and a V-shaped sunken flow guidegroove is formed between every two adjacent V-shaped convex edge spiral wings, and liquid flow nozzles which communicate with the interior of a pipe are arranged at the two ends of each flow guide groove. The V-shaped sunken flow guide grooves rotate along with a drilling rod, so that drilling fluid generates severe turbulence, and sedimentation of rock debris particles in a well section is effectively prevented; and meanwhile, formed rock debris bed particles can be efficiently stirred, and the stirred rock debris particles are captured by the flow guide grooves, then brought into a suspension layer with a high annular flow rate and thrown to a high-side annulus and a farther distance.

The invention relates to a method for rapidly analyzing a rock debris fluorescence image. The method comprises the following steps that (1) oily component identification training is carried out on the basis of RGB three-dimensional color space, so that a clustering file is obtained; (2) oily component analysis is carried out on the rock debris fluorescence image to be tested according to the clustering file obtained in the step (1). The oily component analysis process specifically comprises the following steps that (2.1) color feature extraction is carried out on the input rock debris fluorescence image to be tested, and a feature vector array is generated; (2.2) each feature vector in the feature vector array is analyzed; (2.3) after analysis work of all the feature vectors in the feature vector array is accomplished, oily components contained in the rock debris fluorescence image and the proportions of the oily components are obtained through calculation. According to a rock debris fluorescence layered clustering method based on non-uniform color space color difference calculation, the oily component identification result and the rock debris fluorescence image analysis result are accurate, oily component identification and rock debris fluorescence image analysis are rapid, the requirement of geological staff of an offshore platform for intelligentized well logging can be met, and therefore the method for rapidly analyzing the rock debris fluorescence image can be widely applied to the geological exploration and development process.

A method and a system are provided to prepare a plurality of cuttings or other rock fragments or other porous media, such as cuttings from a drilling interval or multiple intervals, for computer tomographic scanning at the same time. A method and system also are provided to allow organization of mass quantities of cuttings or other rock fragments obtained from intervals of a well to more accurately categorize the cuttings to assist selections thereof for more detailed digital rock analysis, such as using SEM and FIB-SEM systems, are provided. A method and system also are provided to allow characterization of facies occurrence frequency of a depth interval using drill cuttings or other rock fragments. Computerized systems, computer readable media, and programs for performing the methods are also provided.

The invention provides a method for judging compressibility of rocks in different well sections of a horizontal well for developing a natural fractured reservoir. The method for judging the compressibility of the rocks in different well sections of the horizontal well with the natural fractures comprises the steps that 1, in the drilling process of the horizontal well, rock debris samples at the different well sections are collected; 2, the rock debris samples are observed by using an electron scanning microscope to obtain the natural fracture development condition, the rock brittleness and the rock pore development process condition of the corresponding well section; and 3, the compressibility index of the rocks in the corresponding well section is calculated through a weight scoring method. According to the method, the rock debris samples of the whole horizontal section are collected and analyzed, the compressibility index of the rocks of the horizontal sections is obtained, then the compressibility distribution of the rocks of the horizontal sections is determined, the position with the high compressibility index can be selected as much as possible in the follow-up fracturing design to set a perforation point, and the fracturing segmented optimization design is completed.

The embodiment of the present invention discloses a geophysical quantitative prediction method, device, equipment and storage medium of source rock organic carbon. The method includes: pre-processing the obtained input data, introducing the constraints of the measured core cuttings data, calculating the optimal volume content of each rock component, and completing the single well longitudinal TOC estimation; combining the measured core microfacies data with the core-based Based on the geochemical analysis results of cuttings data, a petrophysical model of clastic source rocks in the study area was established; the logging response characteristics were repaired through forward modeling and fidelity, and the TOC sensitive statistical equation of the source rocks in the study area was constructed by cross-analysis of petrophysics; Pre-stack inversion establishes three-dimensional lithofacies constraints, combined with the P-wave impedance data obtained by post-stack inversion, and uses TOC sensitive statistical equation transformation to construct a source rock TOC seismic quantitative prediction section. The technical scheme of the embodiment of the present invention achieves the effect of improving the seismic quantitative prediction accuracy of source rock organic carbon while taking into account the effect of realization efficiency.

The invention relates to a rock elastic parameter determination method based on while-drilling rock debris logging data. The method comprises the steps: 1, obtaining three-dimensional digital rock core microscopic parameters according to the while-drilling rock debris logging data to be logged; 2, generating a three-dimensional digital rock core sample according to the obtained microscopic parameters of the rock debris while drilling; 3, carrying out a uniaxial or triaxial compression numerical experiment on the three-dimensional digital rock core sample to obtain a three-dimensional digital rock core stress-strain curve, and calculating the elastic modulus and Poisson's ratio of the rock core; and 4, selecting rock debris while drilling of different well depths of the to-be-measured well, and repeating the steps 1 to 3 to obtain the continuous rock elasticity modulus and Poisson's ratio of the to-be-measured well distributed along the well depths. According to the method, continuous rock elasticity modulus and Poisson's ratio distributed along the well depth can be obtained by analyzing while-drilling rock debris data along the well depth and carrying out numerical simulation, and the problem that basic data of whole-well rock mechanical calculation is missing can be effectively solved.

The invention relates to the technical field of soft-formation anhydrous environment drilling construction, in particular to a dry-drying drill bit and a using method thereof. The dry-drying drill bitis a hollow cylindrical structure; a drilling and milling head is fixedly connected to the center position in a hollow cylindrical structure of the dry-drying drill bit; and the drill bit end part ofthe drilling and milling head abuts against the drill bit end part of the dry-drying drill bit. The dry-drying drill bit can take out rock debris from the center part of the drill bit without drilling fluid, transmits the rock debris into a sand catching basket above the drill bit, and returns to ground; a rock layer, around the periphery of the dry-drying drill bit, of the hollow cylindrical structure is firstly crushed by the dry-drying drill it, and the drilling and milling head crushes a rock layer on the middle part of the hollow cylindrical structure while height reaches the drill bit end part of the drilling and milling head; and the rock debris is transmitted into the sand catching basket above the drill bit, and returns to ground. The dry-drying drill bit disclosed by the invention is suitable for drilling construction of a surface layer with low drilling speed requirements and relatively soft lithology, and is high in construction efficiency.

The invention discloses a comprehensive logging method for in-situ leaching sandstone type uranium ore. The method comprises the following steps: a, core-free drilling; b, rock debris logging; c, drilling fluid logging; d, X-ray diffraction total rock mineral analysis; carrying out X-ray diffraction total rock mineral analysis; e, performing natural gamma measurement; f, data acquisition; the data acquisition unit is used for acquiring measurement parameters in a drill hole; and according to the collected data, lithology is determined, and a specific stratum is divided. According to the method, the mode of combining the core-free drilling technology and the rock debris logging technology is adopted, drilling construction is carried out through the core-free drilling technology, then the target mine is found through the rock debris logging technology, the drilling efficiency is improved, and the effect of fast and direct prospecting is achieved.

The invention relates to the technical field of petroleum drilling, and particularly relates to a rock debris logging detection system. The rock debris logging detection system comprises a collecting end, a detecting end and a background end, wherein a plurality of collecting units of the collecting end are used for collecting rock debris samples of all stratums; the detecting end is used for detecting the rock debris samples of the stratums at all depth points and generating rock debris detection information; the background end is used for receiving and processing the rock debris detection information from the detecting end; a data analysis subsystem of the background end can calculate the total value of element radioactive energy according to the rock debris detection information of the stratums at all the depth points and draw a to-be-compared stratum map; and a data comparison module of the data analysis subsystem can extract a to-be-compared stratum curve in the to-be-compared stratum map, calculate curve similarity values of the to-be-compared stratum curve and all reference stratum property curves and output corresponding stratum properties according to a reference stratum property map of the reference stratum property curve closest to the to-be-compared stratum curve.

The invention provides a method for evaluating the rock drillability by using rock debris element contents, and relates to the field of geological exploration. The method is low in cost, simple and convenient to operate and high in real-time performance, and has important significance for drill bit selection, drilling parameter optimization and drilling cost reduction. The method for evaluating the rock drillability by using the rock debris element contents specifically comprises the steps of analyzing main chemical compositions and contents thereof of the rock, measuring chemical element compositions and contents thereof of drilling rock debris in an area to be measured, screening 10-12 elements which are most related with the lithology, drawing an element content and lithologic section of each stratum, and acquiring a curve variation diagram of a rock drillability grade value by using logging information; further screening out 7 elements related with the rock drillability from the above 10-12 elements according to the curve variation diagram, performing regression analysis according to the element content and drillability grade value data of the curve variation diagram, and acquiring a calculation model for evaluating the rock drillability.

The invention provides a rock slag quartz content testing system and method for a TBM. The rock slag quartz content testing system comprises a base and a control terminal which are arranged at the position close to a TBM conveyor belt, wherein the base is at least fixedly provided with a rock debris sample pickup mechanism and an X-ray fluorescence spectrum analysis mechanism which communicate with the control terminal; and the rock debris sample pickup mechanism is used for picking up a rock debris sample from the TBM conveyor belt and transmitting the rock debris sample to the X-ray fluorescence spectrum analysis mechanism, and the control terminal is used for determining the content of rock debris quartz according to the received fluorescence spectrum information. The content of quartz or other minerals in rock slag in TBM tunneling can be obtained in real time, so that the quality of rock mass before drilling is accurately evaluated, the quality grade of the rock mass before drilling can be forecasted, an unfavorable geologic body in front of a tunnel face can be found in time, a construction scheme can be optimized according to a real-time test result, and reference is provided for guaranteeing tunnel construction safety.