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200results about How to "High compliance rate" patented technology

Method for identifying lithology of three-dimensional volcanic rock

The invention relates to a method for identifying the lithology of volcanic rock. The method comprises the following steps of: determining the types of rock needing lithological identification; calculating the content of each element in stratigraphic rock in percentage by weight by using the theory of oxygen closed mold on the basis of elemental capture spectroscopy logging information; classifying the lithology of volcanic rock by using a silicon-alkali classification method; extracting the rock structure information of different classes of lithology of volcanic rock on the basis of imaging logging information in combination with oilfield on-site coring analysis and geologic description; combining the rock components calculated according to elemental capture spectroscopy logging with therock structure information determined according to the imaging logging information together and converting a TAS two-dimensional plane into a three-dimensional plane by using the rock structure information as a third dimension scale; and realizing three-dimensional volcanic rock lithological identification by using an SVM (Support Vector Machine) method. By adopting the method, the coincidence rate of lithological identification can be improved to reach more than 90%, which is 10 times that of the traditional method.
Owner:PETROCHINA CO LTD

Method for discriminating type of reservoir fluid by using resistivity data

InactiveCN102012526AMastering Real Response PropertiesImprove the identification rateElectric/magnetic detection for well-loggingAcoustic wave reradiationLithologyPorosity
The invention discloses a method for discriminating the type of reservoir fluid by using resistivity data, which relates to the technical field of oil and gas logging as well as geology and core experiment analysis, and comprises the steps of: a, logging the well through scaling core data, and correctly calculating the mud content, the rock constituents and the porosity of the reservoir fluid; b, eliminating the influence from the lithology and the porosity to the resistivity; c, obtaining m, a, n and b by using core experiment to reflect the parameters of the pore structure, calculating the lower limit RR of the gas-layer resistivity, and eliminating the influence from the pore structure to the resistivity; and d, discriminating the type of the reservoir fluid through comparing a deep lateral resistivity RT in deep induction with the lower limit RR of the gas-layer resistivity obtained in the step c. The method eliminates the influence from the non-fluid factors such as the lithology, the porosity, and the pore structure and the like to the resistivity, and retains and utilizes the response characteristics of different fluids for the resistivity so as to greatly improve the coincidence rate of the discriminating the type of the reservoir fluid.
Owner:四川西德电器有限公司

A Reservoir Pore Structure Classification Method Based on NMR Three Component Percentages

The invention relates to a method for a classifying pore structure of reservoirs based on percentages of three nuclear-magnetic components. The method comprises the following steps: performing matched nuclear magnetic resonance and mercury injection experiments on rock core samples with different pore textures and classifying the pore textures of the rock core samples on the basis of morphological characteristics of a mercury injection curve; analyzing the change characteristics of the mercury injection curve, a nuclear magnetic resonance T2 spectrum and an accumulated porosity curve of the rock core samples with different pore textures and confirming the key factors controlling the quality of the pore textures; extracting percentages S1, S2 and S3 of small-size, middle-size and large-size pore components in a whole pore system from a nuclear magnetic resonance experimental data; confirming a confirmation standard of the change rule of the sizes of the S1, S2 and S3 of different pore textures; and extracting S1, S2 and S3 from a nuclear-magnetic log data and quickly classifying by utilizing the confirmation standard. The nuclear-magnetic log data of thirty wells are processed by using the method provided by the invention and the coincidence rate between the acquired results and a test oil capacity result is 90%, which is increased by 16% from the coincidence rate acquired by using the prior art.
Owner:PETROCHINA CO LTD

Log multi-parameter oil-gas interpretation method based on radar map and cloud model

The invention relates to a log multi-parameter oil-gas layer interpretation and evaluation method based on a radar map and a cloud model. The method comprises the steps of: obtaining interpretation and evaluation parameters by normal geological log, gas log, geochemical log, nuclear magnetic log and the like; integrating log interpretation databases; drawing the log multi-parameter oil-gas interpretation radar map according to different reservoir types in different areas by using the databases; and mapping the interpretation parameters onto the rays of the radar map. The radar map is divided into a good reservoir, a medium reservoir and a poor reservoir from inside to outside; the area of the radar map is taken as the characteristic quantity for finishing characteristic extraction; the area of the radar map is used to calculate a cloud boundary equation, and the cloud boundary equation is mapped on the manufactured cloud scale; the cloud model is the same as the radar map, namely the reservoir is divided into a dry layer area, a low-yield oil-gas layer area and an oil-gas layer area with industrial value from inside to outside. The intuitional and quantitative interpretation and evaluation of log multi-parameter oil-gas reservoirs is realized by the radar map and the cloud model. The interpretation coincidence rate can be increased, and the interpretation conclusion is represented by a graph, so that the log multi-parameter oil-gas layer interpretation and evaluation method is intuitional in expression and strong in applicability.
Owner:CHINA PETROLEUM & CHEM CORP +1

Double-antibody sandwich ELISA (enzyme linked immunosorbent assay) kit used for detecting avian leukosis group specific antigen

The invention discloses double-antibody sandwich ELISA (enzyme linked immunosorbent assay) kit used for detecting an avian leukosis group specific antigen. The kit comprises an enzyme plate coated by a monoclonal antibody which is secreted by a hybridoma cell strain the preservation serial number of which is CGMCC (china general microbiological culture collection center) No.5961. The invention also discloses a double-antibody sandwich ELISA method which is established by utilizing the monoclonal antibody and is capable of rapidly and effectively detecting an ALV (avian leukosis virus). In the double-antibody sandwich ELISA method, the monoclonal antibody prepared by pronucleus expressive HLJ09mdj-1p27 albumen is utilized as a peridium antibody, and antibodies prepared by p27 are utilized as a detection antibody. According to the invention, the minimum detection amount of the p27 is 1.25 ng/ml, the method is not reacted with the common virus of birds, and the specificity is good. The method is utilized to detect egg white and an anus swab sample, and the coincidence rate is respectively 96.5% and 88.9% compared with a PCR (polymerase chain reaction) method; and the result proves that the method has the advantages of convenience, celerity, differentia, sensitivity and the like, and is useful for the detection and population purification of the ALV.
Owner:HARBIN VETERINARY RES INST CHINESE ACADEMY OF AGRI SCI

Four-quadrant reservoir stratum type identification method and system

The invention discloses a four-quadrant reservoir stratum type identification method and system, wherein the four-quadrant reservoir stratum type identification method comprises the following steps: selecting a core sample, and acquiring the mud filtrate specific resistance and electrical imaging logging information of a well corresponding to the core sample; performing CT scanning imaging on the core sample to generate a CT imaging pore distribution spectrum of the core sample; according to the mud filtrate specific resistance and the imaging logging pixel conductivity, computing an electrical imaging porosity spectrum of the well corresponding to the core sample by utilizing the Archie's formulas; calibrating the electrical imaging porosity spectrum corresponding to a stratum segment by utilizing the CT imaging pore distribution spectrum, and computing the mean value and distribution variance of the calibrated electrical imaging porosity spectrum; performing standardized treatment on the mean value and distribution variance of the calibrated electrical imaging porosity spectrum to generate the standard mean value and distribution variance of porosities; forming a two-dimension plane by the standard mean value and distribution variance of porosities, wherein the standard mean value of porosities is the abscissa axis, and the standard distribution variance of porosities is the ordinate axis; and identifying the reservoir stratum type according to the two-dimension plane.
Owner:PETROCHINA CO LTD

Method for judging fluid type of reservoir by utilizing logging data of while-drilling drilling fluid

The invention discloses a method for judging a fluid type of a reservoir by utilizing logging data of while-drilling drilling fluid, which comprises the following steps of: A, data collection, i.e., collecting performance parameters of the while-drilling drilling fluid of a target stratum, wherein the performance parameters comprise electrical conductivity, a temperature, drilling time and a hydrocarbon component of the drilling fluid; B, data processing; C, setting of a crossplot graph data track, i.e., for a plumb shaft, respectively combining an Sf data track and a Tf data track to form an S-T data track, combining the Sf data track and a DHf data track to form an S-DH data track and respectively making crossplots; D, judgment of the fluid type, i.e., using the S-T dat track for judging a dry layer (a micro gas-bearing bed) and an aqueous layer, using the S-DH data track for the plumb shaft to judge the gas-bearing bed or a gas reservoir and using a DO-DH data track for judging an oil-bearing formation or the gas-bearing bed. When the method is adopted, an explanation result of the method is objective and accurate, the coincidence rate of the explanation result and the oil testing conclusion is high, and the requirements on production and research can be met.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Injection-production relation optimizing and adjusting method for well group

The invention provides an injection-production relation optimizing and adjusting method for a well group and belongs to the field of oil field development projects. According to the injection-production relation optimizing and adjusting method for the well group, a three-dimensional phase-control geologic model of a block to be adjusted is established by drawing a depositional microfacie distribution diagram, a sand group structural map, an effective thickness contour diagram, a porosity contour diagram and a permeability contour diagram of the block to be adjusted, the remaining oil saturation distribution state of the well group in the block to be adjusted is determined, and the injection-production relation of the well group in the block to be adjusted is optimized and adjusted. Through depositional microfacie control, the geologic model which is more similar to the actual stratum is established, the influence of depositional microfacies is fully considered during numerical simulation of the well group, permeability saturation curves corresponding to the percolation characteristics of different depositional microfacies are provided for the different depositional microfacies, and the simulated remaining oil distribution states in different facie belts are more accurate. Well group adjustment parameters obtained on the basis are more reliable, and a more objective theoretical basis is provided for continuous and efficient development of oil fields and scientific decision-making.
Owner:CHINA PETROLEUM & CHEM CORP +1

Fluorescence immunochromatographic assay method for quantitatively detecting heart fatty acid binding protein and kit for quantitatively detecting same

ActiveCN102520194ASolve the backgroundSolve the signal indistinguishableBiological testingBlood plasmaBiology
The invention discloses a fluorescence immunochromatographic assay method for quantitatively detecting hFABP (heart fatty acid binding protein) and a kit for quantitatively detecting the same. The fluorescence immunochromatographic assay method for quantitatively detecting the hFABP realizes quantitative fluorescence detection on the basis of optimizing components of a test strip by the aid of excellent fluorescent characteristics of quantum dots and by means of combining bicolor labeling technique and immunochromatographic assay. Compared with a conventional colloidal gold immunochromatographic assay method, the fluorescence immunochromatographic assay method has the advantages of fine labeling stability, low non-specificity, high sensitivity, wide linear range and accuracy in quantization. The kit is used for quantitatively detecting the hFABP, can be used for simultaneously detecting whole blood, blood serum and plasma samples, serves as a simple, accurate, specific and inexpensive detecting tool for early screening and prognosis evaluation of acute myocardial infarction, is applicable to hospitals at all levels, and is particularly beneficial to wide popularization in primary hospitals and clinics.
Owner:SHENZHEN KANGMEI BIOTECH

Method for discriminating reservoir fluid by establishing gas logging chart on basis of discriminant analysis

ActiveCN102900433ASolve the problem of difficult to effectively distinguish reservoir fluidsAccurate discriminationBorehole/well accessoriesMarking outPeak value
The invention discloses a method for discriminating reservoir fluid by establishing a gas logging chart on the basis of discriminant analysis, relating to the technical field of oil and gas exploitation and development. The method includes the steps of: a, collecting the gas logging peak value data and the oil test results in an oil test completion well; b, according to the categories of the oil test results, grouping the gas logging peak value data of the logging display sections which have the same category of oil test results; c, establishing discrimination factors by taking the gas logging peak value data of the logging display sections as a base; d, selecting the established discrimination factors, and formulating discrimination functions which can effectively discriminate the property of the fluid on the basis of discriminant analysis; and e, according to the coincidence rates of the formulated discrimination functions, preferentially selecting two discrimination functions with the highest coincidence rates to be used as x axis and y axis to establish a gas logging chart to discriminate the property of the reservoir fluid. The method disclosed by the invention solves the problem that conventional gas logging charts are difficult for effectively discriminating the reservoir fluid, so the dominant regions of different fluids can be well marked out.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Colloidal gold test strip and test strip card for detecting IgM antibody, and preparation and detection method

The invention provides a colloidal gold test strip for detecting an IgM antibody. The IgM antibody is a specific IgM antibody for nine respiratory tract infection pathogens, and the colloidal gold test strip comprises a sample pad, a conjugate pad, a nitrocellulose film and a water absorption pad which are attached to a polyvinyl chloride base plate in sequence; the conjugate pad is a glass fiber film wrapped with a rabbit-anti-human IgM antibody-colloidal gold conjugate; the nitrocellulose film is wrapped with 9 detection lines and 1 quality control line in sequence; the 9 detection lines are respectively a mycoplasma pneumoniae recombined antigen, a chlamydia pneumoniae recombined antigen, an influenza a virus antigen, an influenza B virus antigen, a sendai virus antigen, a legionella pneumophila antigen, a Coxiella burnetii antigen, a respiratory syncytial virus antigen and an adenovirus antigen, and the quality control line is a second antibody. The invention further provides a colloidal gold test strip card comprising the colloidal gold test strip and a colloid gold kit, a preparation method of the colloidal gold test strip card, and a method for realizing detection by adopting the colloidal gold test strip, the test strip card or the kit.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA

Recognition method for underground single ancient channel under condition of dense well pattern

ActiveCN106837319AAvoid drudgeryAvoiding Insufficient Determination of Vertical ResolutionGeological measurementsBorehole/well accessoriesImage resolutionModel fitting
The invention discloses a recognition method for an underground single ancient channel under the condition of a dense well pattern. By adoption of an analogy method, field outcrop observation results are used for guiding recognition of the underground single ancient channel, and a model fitting geological thinking method is embodied. Through application of the recognition method in a Sulige gas field, quantitative description results are applied to three-dimensional geological modeling and serve as constraint conditions to enable the model consistency rate to be remarkably increased. According to the recognition method for the underground single ancient channel under the condition of the dense well pattern, aiming at morphological characteristics of the single ancient channel, dense well pattern drilling data are sufficiently utilized, tedious work of sedimentary micro-phase interpretation conducted on a single well is avoided, the phenomenon that the seismic datum longitudinal resolution ratio is not enough for determining is avoided, and the recognition method has the characteristic of being convenient to operate. According to application of the recognition method in the Sulige gas field, recognition accuracy of vertical sand bodies is improved to be less than 8 m from being 15-20 m, the original quantitative description results achieve quantification, the results are applied to three-dimensional geological modeling and serve as the constraint conditions to enable the model consistency rate to be increased by 10%, and the effect is obvious.
Owner:PETROCHINA CO LTD

Method for identifying properties of reservoir fluid by three-dimensional quantitative fluorescence parameter charts

The invention discloses a method for identifying properties of reservoir fluid by three-dimensional quantitative fluorescence parameter charts. The method includes the steps of based on tested sidewall core quantitative fluorescence analysis data, establishing an interpretation chart, where the properties of the reservoir fluid are identified through three-dimensional quantitative fluorescence parameters, in a two-dimensional space composed of oiliness indexes and comparison grades; collecting samples to be identified, and analyzing the samples to obtain three-dimensional quantitative fluorescence spectrogram data of the samples to be identified; projecting the oiliness indexes and the comparison grades in the obtained three-dimensional quantitative fluorescence spectrogram data to the interpretation chart, where the properties of the reservoir fluid are identified through three-dimensional quantitative fluorescence parameters; judging the properties of the reservoir fluid according to an area of projection points. After the method is applied to Bohai Oilfield, interpretation coincidence rate reaches 89.5%, and the level and coincidence rate of comprehensive interpretation for fluid properties on a logging site are greatly increased. The method is simple and practical, is easy to operate, allows timely judgment, and has great application and popularization prospects.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Method for recognizing reservoir fluid property by adopting three-dimensional quantitative fluorescent longitudinal parametric variation trend

The invention discloses a method for recognizing reservoir fluid properties by adopting a three-dimensional quantitative fluorescent longitudinal parametric variation trend. The method comprises the following steps: comparing and analyzing oiliness concentration and contrast level data in collected three-dimensional quantitative fluorogram data and a corresponding oil testing conclusion and a well logging interpretation result and establishing the interpretation standards of judging the reservoir fluid properties; collecting and analyzing specimens to be recognized to obtain the three-dimensional quantitative fluorogram data of the specimens to be recognized; determining the reservoir fluid properties by contrasting the oiliness concentration and the comparison level in the three-dimensional quantitative fluorogram data of the specimens to be recognized with the interpretation standards on the basis of the variation trend of well depths. According to the invention, when the method is applied in the Bohai oilfield, the interpretation coincidence rate can reach 89.5%, and the level and the coincidence rate of the comprehensive interpretation fluid properties in well logging fields can be greatly improved; the method is simple, practical, easy to operate and timely and accurate in judgment, and has a very good application and popularization prospect.
Owner:CHINA NAT OFFSHORE OIL CORP +1
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