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63 results about "Mud logging" patented technology
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Mud logging is the creation of a detailed record (well log) of a borehole by examining the cuttings of rock brought to the surface by the circulating drilling medium (most commonly drilling mud). Mud logging is usually performed by a third-party mud logging company. This provides well owners and producers with information about the lithology and fluid content of the borehole while drilling. Historically it is the earliest type of well log. Under some circumstances compressed air is employed as a circulating fluid, rather than mud. Although most commonly used in petroleum exploration, mud logging is also sometimes used when drilling water wells and in other mineral exploration, where drilling fluid is the circulating medium used to lift cuttings out of the hole. In hydrocarbon exploration, hydrocarbon surface gas detectors record the level of natural gas brought up in the mud. A mobile laboratory is situated by the mud logging company near the drilling rig or on deck of an offshore drilling rig, or on a drill ship.
System, method and apparatus for mud-gas extraction, detection and analysis thereof
InactiveUS20060093523A1Maximum efficiencyFacilitates accurateComponent separationMaterial analysis by electric/magnetic meansWireless transceiverTransceiver
The application of a gas analyzer for gas mud logging is presented to measure gases in the return mud flow used in drilling processes. A supported membrane extraction probe from the analyzer is inserted into the mud flow. The probe extracts target gases from the mud through the membrane. Extracted gases are transported by an internal pump to an internal gas sensor unit. The infrared sensor unit is utilized to subject the gases to infrared emitted energy to excite the gasses at a molecular level for sensing and detection. The sensor then transfers sensed values electronically to a digital conditioning board. As the data is digitized in the conditioning board it is encoded with information to enable a means of correlating the derived sensor data. The data is then sent to a digital wireless transceiver for transport to a remote receiving transceiver connected to a microprocessor for data logging.
Owner:HYPERTEQ LP
Single-trap level favorable region optimal selection method under multi-geological factor quantitative constraints
InactiveCN104991274ARich and perfect evaluation methodsSeismic signal processingPorosityWell logging
The invention relates to a single-trap level favorable region optimal selection method under multi-geological factor quantitative constraints. The method includes the following steps that: based on a high-resolution stratigraphic framework, a sedimentary unit-level isochronous sedimentary stratum can be formed through division in a longitudinal direction; five kinds of two-sandstone section oil and water splitting models can be established according to well logging data, mud logging data, well testing data, well logging interpretation oil and water data and seismic data; single-sand body-level oil and water splitting can be realized under the sedimentary unit-level isochronous stratigraphic framework; a single-sand body-level sub-layer roof surface structural graph, a sedimentary microfacies planar graph and an oil and water distribution law can be compiled; oil-containing traps can be determined according to river boundaries, faultage, micro-amplitude structures, and sandstone updip wedge out lines; trap area superimposition and trap thickness accumulation are performed on the oil-containing traps in different single-sand body-level sub-layers; favorable region evaluation indexes of trap type, reservoir porosity, reservoir depth, organic matter type, maturity, hydrocarbon-generating intensity and source-reservoir-cap combination are combined together so as to build an oil reservoir forming element probability and oil reservoir forming matching probability double-factor favorable evaluation model; and favorable regions can be selected optimally.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1
Real-time logging data acquisition and synchronous early-warning method
ActiveCN101976494AAchieve remote automatic monitoringReach warningSurveyAlarmsReal-time dataData acquisition
The invention discloses a real-time logging data acquisition and synchronous early-warning method, comprising the following steps: configuring data acquisition modules in well sites, configuring basic information of the well sites, and establishing an early-warning model; acquiring the real-time data of the well sites, and analyzing and formatting the real-time data; classifying and carrying out statistics on the real-time data according to the early-warning model for carrying out comprehensive analysis and judgment and early warning; and processing the formatted data and the abnormal information obtained based on the early-warning model into a standard format, sending to a base, and carrying out secondary early-warning. In the method, the real-time logging data of a site mud logging unitunder a plurality of operating conditions is acquired and then subject to intellectualized comprehensive analysis and judgment, and primary abnormal early warning is carried out; and meanwhile the data is processed into the standard format and then sent to the base so as to realize a synchronous secondary warning mechanism between the site and the logistical base, thus achieving the purposes of remote automatic monitoring and early warning during the well drilling process in a plurality of the well sites, reducing downhole accidents and meeting the demand for safety drilling production.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Integrated drilling dynamics system
ActiveUS7313480B2Easy to operateElectric/magnetic detection for well-loggingSurveyClosed loopEngineering
A method and apparatus for controlling a drilling operation involving the rotation of a bottom-hole assembly carried by a drillstring. In one embodiment, an integrated, closed-loop rigsite analysis system is provided for acquiring and analyzing real-time mud logging and downhole data, and displaying in real-time values of one or more operator-controllable parameters, along with dynamic critical values of at least one controllable operating parameter, thereby enabling an operator to modulate such parameter on a real-time basis to optimize operation. The integrated information is derived by intelligent combination of data into meaningful and useable information that can be displayed in an informative manner.
Owner:HALLIBURTON ENERGY SERVICES INC
Fast mud gas logging using tandem mass spectroscopy
Systems and methods for high speed mud gas logging are described. A general workflow of mud gas logging uses tandem mass spectroscopy. The workflow involves first separating the volatile components of the hydrocarbons (typically C8 and below) from the drilling fluid using a fluid extractor (or degaser). Extracted gases are then diluted in air and transported to an analyzer, which measures the concentration of each of those gases in air. A tandem mass spectroscopy-based analyzer is used that is able to quantify each of those hydrocarbon components, including resolving isomeric species, while tolerating the presence of the non-hydrocarbons. According to some embodiments, triple quadrapole mass spectroscopy is used.
Owner:SCHLUMBERGER TECH CORP
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
Method for simulating deposition on basis of deposition process control of reference planes
ActiveCN106202749AConsider the effects of sedimentationShort simulation timeDesign optimisation/simulationSpecial data processing applicationsCyclic processDiffusion
The invention discloses a method for simulating deposition on the basis of deposition process control of reference planes. The method includes analyzing deposition environments of deposition zones by the aid of well logging, mud logging and rock core information and determining change conditions of the reference planes and ancient landform conditions by the aid of burial history information; inputting ancient landforms into hydrodynamic models as initial landforms according to ancient landform analysis, simulating and reconstructing hydrodynamic characteristics of research zones, simulating and reconstructing transportation and deposition of sediment on the basis of hydrodynamic research according to sediment transport and diffusion equations, constraining deposition and denudation of deposits by the aid of the reference planes on the basis of transportation and deposition of the sediment, superposing deposition and denudation of the deposits on the initial landforms to be used as landforms for next simulation so as to carry out cyclic processes for simulating and reconstructing deposition. The method has the advantages that conditions of conditions of the reference planes are considered in simulation processes, and accordingly deposition at basin level can be simulated; the method is short in simulation time, and correction can be repeatedly carried out until requirements of geological characteristics are met.
Owner:YANGTZE UNIVERSITY
Method for real-time monitoring of formation pressure by means of remote mud logging information
InactiveCN103615236AGuaranteed real-timeRealize remote formation pressure detectionSurveyTime informationWell drilling
The invention discloses a method for real-time monitoring of formation pressure by means of remote mud logging information. The method comprises the steps of selecting an adjoining well and acquiring comprehensive mud logging data, calculating the mud logging dc index of the adjoining well according to the comprehensive mud logging data, determining a normal trend line according to the mud logging dc index of the adjoining well, acquiring real-time information of a mud logging remote transmission system, calculating the value of the mud logging dc index according to the real-time information in real time, conducting real-time shaft pressure state analysis according to the well drilling state, drawing a mud logging remote information real-time monitoring result curve by means of the value of the mud logging dc index calculated in real time and a result of shaft pressure state analysis, and judging abnormal change of the formation pressure by means of the normal trend line of the adjoining well. According to the method, monitoring of the formation pressure by means of the remote mud logging information is achieved, the shaft pressure state can be analyzed during drilling, an anomaly alarm can be given, the occurrence of downhole accidents is reduced, and safe well drilling is achieved.
Owner:CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
Dominant-lithology-based carbonate rock lithic facies characterization method
InactiveCN108072748AFast and accurate three-dimensional spreadingRapid and Accurate Evolution LawEarth material testingSeismic signal processingLithologyOutcrop
The present invention provides a dominant-lithology-based carbonate rock lithic facies characterization method, which comprises: collecting the outcrop, the well boring and well logging data, the paleontological fossils and the geochemical data at the target layer section of a study area, carrying out comparing and analyzing with seismic data, and carrying out fine dividing and comparing on the stratum at the target layer section of the study area; carrying out high-frequency sequence stratigraphic dividing and comparing on the target layer section of the study area, and establishing a high-frequency sequence stratigraphic grillwork; observing, describing and classifying the outcrop and the cores of each well in the study area, and establishing a lithology evolution sequence in the targetlayer section of the study area; carrying out comprehensive calibration on the cores of each well, the outcrop, the seismic data, the well logging data and the mud logging data, determining the lithology combination characteristics, and quantitatively dividing the dominant lithology; dividing and describing the single wells and the outcrop lithic facies by using the dominant lithology; and completing a finely divided carbonate rock lithic facies profile map within the isochronous sequence stratigraphic grillwork, completing a dominant lithic facies plane layout map within the sequence stratigraphic grillwork, and completing the dominant-lithology-based characterization of the carbonate rock lithic facies.
Owner:PETROCHINA CO LTD
Water-injection oil-replacement mining method applicable to fracture-cavity type carbonatite condensate gas reservoirs
ActiveCN104895537AEnhanced overall recoveryExtend the life cycleFluid removalSpecial data processing applicationsReservoir typeProcess engineering
The invention discloses a water-injection oil-replacement mining method applicable to fracture-cavity type carbonatite condensate gas reservoirs, wherein three-dimensional geologic models of condensate gas reservoirs with different reservoir types and different gas condensate contents are established through a modeling technology in combination with materials related to earthquake, logging, drilling and mud logging and dynamic production; a dual-media water-injection oil-replacement mechanism is then researched by a numerical simulation technology in combination with pilot production characteristics; an injection well, a water injection moment, a water injection amount, a water injection speed, quantity of water injection rounds and water injection intensity are optimized in order to realize multiple rounds of mining after a well soaking period is reached; and the water injection moment, the water injection amount, the water injection speed and the water injection intensity need to be optimized before each round of the mining. By the method, a life cycle of the fracture-cavity type carbonatite condensate gas reservoir can be prolonged, and rate of oil and gas recovery can be effectively increased.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Real-time method for determining the porosity and water saturation of an underground formation using gas and mud logging data
InactiveUS20140379265A1Electric/magnetic detection for well-loggingPermeability/surface area analysisWell drillingMud logging
Real-time method for determining the porosity and water saturation of an underground formation using gas and mud logging dataA method and a computer program product for determining the porosity (PHI) and water saturation (Sw) of an underground formation while drilling a borehole, using gas and mud logging data obtained while drilling.
Owner:REPSOL SA
Method for eliminating pump stroke jamming signals of drilling fluid logging while drilling transmission system
The invention discloses a method for eliminating pump stroke jamming signals of a drilling fluid logging while drilling transmission system. The method for eliminating the pump stroke jamming signals of the drilling fluid logging while drilling transmission system adopts an adaptive Fourier series compound mode to compound pump stroke jamming signals and synchronize with received downhole data signals based on a pump stroke jamming signal fundamental frequency by obtaining the pump stroke jamming signal fundamental frequency, and eliminates the pump stroke jamming signals in the received downhole data signals after being synchronized based on the pump stroke jamming signal fundamental frequency. The method for eliminating the pump stroke jamming signals of the drilling fluid logging while drilling transmission system can effectively remove pump stroke jamming signals, and enables drilling fluid to accurately receive downhole useful signals along with a ground received end in a logging while drilling transmission system.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Method for correcting the measured concentrations of gas components in drilling mud
Owner:CHEVROU USA INC
System and method for on demand logging of document processing device status data
InactiveUS20080222186A1Error detection/correctionElectrographic process apparatusAuxiliary memoryDevice status
The subject application is directed to a system and method for document processing device status logging. Status data is first received corresponding to operations of an associated document processing device. The received status data is then stored in a suitable storage location. A determination is then made whether a predefined interval occurred. When the interval has occurred, the stored data is deleted or overwritten. When a secondary memory device is received and recognized by the document processing device, the received status data is routed to the secondary memory device, whereupon the status data remains in the storage location until such time as the predefined interval has occurred. When the secondary memory device that was received by the document processing device is not detected or recognized, operations return to awaiting the elapse of the predefined interval or the detection of a recognizable secondary memory device.
Owner:KK TOSHIBA +1
Method for determining gas saturation of shale gas reservoir through well-logging lithologic density
The invention relates to a method for determining gas saturation of shale gas reservoir through well-logging lithologic density. The method comprises following steps: obtaining gas saturation of core test analyses, core volume and density and well-logging natural gamma at the corresponding depth and utilizing a least square method to determine model coefficients of a first model and a second model in order to ultimately determine an optimal model; acquiring natural gamma and lithologic density of a well to be interpreted, acquiring total hydrocarbon and methane content of the well to be interpreted through gas-logging resources and acquiring lithic fragments, cores, lithology of geological logging to be explained through geological-logging resources; dividing the shale gas reservoir through acquired gas-logging and mud-logging resources; calculating gas saturation Sg of the reservoir of the well to be interpreted through the determined optimal model and well-logging resources; and outputting a calculation result.The method for determining gas saturation of the shale gas reservoir through well-logging lithologic density has following beneficial effects: the method is easy and convenient and is extensively applied and is ready to use in 120 wells of shale gas; and calculated gas saturation of the shale gas reservoir is approximate to gas saturation of the shale gas reservoir, with the average error less than 10%.
Owner:CHINA PETROCHEMICAL CORP +2
Epoch-based MUD logging
InactiveUS20080028167A1Efficient updateError detection/correctionTransmissionVirtualizationMud logging
Methods and apparatus for performing MUD logging for a volume in a system implementing network-based virtualization are disclosed. This is accomplished by enabling two or more MUD loggers to separately maintain a MUD log for the volume. Through enabling the MUD loggers to communicate, the MUD loggers may update their respective MUD logs. Each MUD log includes information for one or more epochs, where the information for each of the epochs indicates a set of one or more regions that have been modified during the corresponding epoch.
Owner:CISCO TECH INC
Degassing equipment
InactiveCN102580359AImprove liquid absorption performanceGuarantee the true gas contentLiquid degasificationWithdrawing sample devicesDegasserWell logging
Degassing equipment belongs to comprehensive well logging and mud logging equipment and relates to an on-line degassing device for mud sucked in petroleum exploration drillings, in particular to a fluid suction structure for sucking mud fluid and a fluid suction head of the fluid suction structure. The fluid suction head is arranged on a hose pump which is connected with a degasser, and the hose pump is provided with a turn plate capable of driving a compression roller to rotate and a hose; a mud inlet seal structure is mounted at a position of a tank body mud inlet of the degasser, the fluid suction head is provided with a fluid suction head body, and a fluid suction pipe portion is arranged on the fluid suction head body and is communicated with a fluid outlet of the fluid suction head body to suck mud; the fluid suction pipe portion is connected with a fluid inlet of the hose pump to feed the mud into the hose pump; and the fluid suction head body is provided with a fluid feed filter end plate for filtering the mud. The reasonable configurations such as a sealing structure, the fluid suction head, the hose pump, the fluid suction structure and the like enabling the degassing equipment to better achieve purposes of on-line degassing, constant current degassing and quantification degassing.
Owner:天津港保税区鑫利达石油技术发展有限公司
Well site digital integrated management and control system
InactiveCN104714515AAchieve integrationEasy to controlProgramme total factory controlVideo monitoringWell logging
The invention provides a well site digital integrated management and control system. The well site digital integrated management and control system comprises a back face interface part, an inner structure part and a front panel part. The inner structure part comprises a dual-redundancy CPU module where data collection is integrated, an environment monitoring module, a square bin device monitoring module, a 9-bit current detection module, a 3G communication module, a dual-redundancy power supply converting and switching module, a data collection and storage system and a data application and display system. By means of the well site digital integrated management and control system, the full coverage of all fields of drilling, mud logging, well logging, geophysical prospecting, underground working and the like can be achieved, information sharing platforms of all systems such as on-site data collection, data transmission, video monitoring, device monitoring, video conferences, production scheduling, production and running statistics and the like are established, and the service requirements of all the fields for real-time production management, dynamic data analysis, emergency communication, remote commanding and the like are met.
Owner:CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
Method for establishing fine anisotropic shale rock physical model
ActiveCN110909487AImprove modeling accuracyGeometric CADDesign optimisation/simulationPorosityWell logging
The invention discloses a method for establishing a fine anisotropic shale rock physical model. The method comprises the following steps: establishing a rock physical model capable of predicting the shale stiffness tensor through logging, mud logging, indoor testing, anisotropic SCA and DEM models, isotropic SCA and DEM models and a Brown-Korringa model. According to the method, the influence of inorganic matter pores and organic matter pores on a modeling result is considered respectively; the contents of organic matter pores and inorganic matter pores are respectively calculated by utilizingthe contents of adsorbed gas and free gas and and combining the total porosity; the method comprehensively considers the cause of shale anisotropy, is more consistent with the actual physical property characteristics of the shale stratum, has higher modeling precision than other methods, and can provide basic data for subsequent wave velocity prediction, anisotropy evaluation, rock elasticity parameter evaluation, crustal stress evaluation and the like.
Owner:SOUTHWEST PETROLEUM UNIV
A characterization method of oil and gas enrichment degree
ActiveCN109191002AClarify the differential enrichment degree of oil and gasThe calculation result is accurateResourcesWell loggingNatural abundance
The invention provides a characterization method of oil and gas enrichment degree, belonging to the technical field of oil and gas exploration, which can characterize the oil and gas enrichment degreeof each interval of a single well. The characterization method of oil and gas enrichment degree comprises the following steps: according to mud logging data, well logging data and oil testing data ofa plurality of known reserves wells, determining and assigning oil and gas display grades contained in different intervals in the known wells in each kind of data respectively; calculating the totalthickness corresponding to each oil and gas display level and the total thickness of sandstone in each interval of each well in each data, and then calculating the effective oil and gas accumulation value of each data for each interval; linearly fitting the relationship between the reserves abundance corresponding to each interval of a known well and the effective values of oil and gas accumulation of three kinds of data as an evaluation formula; calculating the predicted reserve abundance corresponding to each interval of unknown reserve well by using the evaluation formula.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Method for computing pressure attenuation gradients
ActiveCN108801538AGood for guiding explorationEasy accessFluid pressure measurementGeological measurementsUltrasound attenuationWell logging
The invention relates to a method for computing pressure attenuation gradients. The method includes particular steps of S1, collecting and collating geological materials, mud logging materials, well logging materials and oil testing materials of research areas; S2, predicting mudstone pressures of the research areas by the aid of Eaton processes and equivalent depth processes and correcting the mudstone pressures by the aid of measured pressures; S3, combining geological structures, sedimentary facies distribution characteristics and fault development conditions of the research areas with oneanother according to predicted formation pressure values and drawing pressure coefficient contour lines; S4, building different pressure attenuation gradient computation models and computing the pressure attenuation gradients according to the different pressure attenuation gradient computation models. The method has the advantages that sedimentary facies change and fault geological factors are considered, the heterogeneity of pressures in change procedures is sufficiently considered, the different pressure attenuation gradient computation models are built, the pressure attenuation gradients ofthe research areas are computed piecewise, accordingly, distribution and change laws of the pressure attenuation gradients are accurately clear and definite, and the method is favorable for guiding oil and gas exploration on overpressure oil and gas bearing basins.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Scintillating gamma ray specrometer and its use in mud logging system
InactiveUS20180239051A1Electric/magnetic detection for well-loggingX/gamma/cosmic radiation measurmentScintillation crystalsPhotomultiplier
A gamma ray scintillation spectrometer is disclosed in which an inorganic scintillation crystal has a channel extending therethrough for receiving a sample into, and disposing a sample out of, the scintillation crystal. The spectrometer further includes a photomultiplier tube optically coupled to the scintillation crystal to detect photons generated by the scintillation crystal. A system and a method for using the gamma ray scintillation spectrometer are also provided.
Owner:SHELL OIL CO
Core constrained electric imaging well logging image processing method and device
ActiveCN108318534AEfficient acquisitionEasy accessDrawing from basic elementsTexturing/coloringElectricityImaging processing
The embodiment provides a core constrained electric imaging well logging image processing method and device. The method comprises the following steps: obtaining electric imaging well logging information and mud logging information; determining an electric imaging well logging image resistivity distribution diagram in an object region according to the electric imaging well logging information; establishing the conversion relation between resistivity and rock colors according to the electric imaging well logging image resistivity distribution diagram and the mud logging information; converting the electric imaging well logging image resistivity distribution diagram into a corresponding optical well logging image according to the conversion relation between resistivity and rock colors. As theconversion relation between resistivity and rock colors is firstly established by synthesizing the characteristics of the electric imaging well logging information and logging information, and then the electric imaging well logging image resistivity distribution diagram is converted into the optical well logging image according to the conversion relation to solve an optical imaged image, the technical problems in the prior art that the cost for determining the optical imaged image is high and the determined optical imaged image is poor in continuity are solved.
Owner:PETROCHINA CO LTD
Method of Judging Reservoir Fluid by Using Discriminant Analysis to Establish Gas Survey Chart
ActiveCN102900433BSolve the problem of difficult to effectively distinguish reservoir fluidsAccurate discriminationBorehole/well accessoriesGas analysisMarking out
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Scintillating gamma ray spectrometer and its use in mud logging system
InactiveUS20180356556A1X-ray spectral distribution measurementMagnetic measurementsGamma ray spectrometerScintillation crystals
A gamma ray scintillation spectrometer is disclosed in which an inorganic scintillation crystal has a channel extending therethrough for receiving a sample into, and disposing a sample out of, the scintillation crystal. The spectrometer further includes a photomultiplier tube optically coupled to the scintillation crystal to detect photons generated by the scintillation crystal. A system and a method for using the gamma ray scintillation spectrometer are also provided.
Owner:SHELL OIL CO
Estimation of formation properties based on borehole fluid and drilling logs
A method of estimating one or more properties of an earth formation includes disposing a carrier in a borehole in an earth formation as part of an energy industry operation, receiving borehole fluid from the borehole, estimating at least one property of the borehole fluid associated with one or more intervals along the borehole, and generating a mud log that indicates values of the at least one property at the one or more intervals, the at least one property including at least one of gas content and cuttings content. The method also includes estimating, by a processor, one or more properties of the formation based on the mud log, the one or more properties selected from at least one of lithology, permeability, total organic carbon and brittleness, and controlling one or more operational parameters of the energy industry operation based on the one or more properties of the formation.
Owner:BAKER HUGHES INC
Drilling fluid extreme pressure lubricant having freezing point of lower than -25 DEG C
ActiveCN106609130ADoes not affect other performanceDoes not affect geological loggingDrilling compositionFluorescencePetroleum
The present invention discloses a drilling fluid extreme pressure lubricant having a freezing point of lower than -25 DEG C, wherein the drilling fluid extreme pressure lubricant comprises, by weight, 80-95 parts of lightweight lubricating oil, 5-15 parts of an extreme pressure anti-wear agent, 0.5-2 parts of a surfactant, and 0.5-5 parts of an anti-foaming agent. According to the present invention, the drilling fluid extreme pressure lubricant is suitable for the petroleum drilling operation in high-cold regions, and has the freezing point of less than -25 DEG C; after 0.5-1% of the drilling fluid extreme pressure lubricant is added to a drilling fluid, the lubricating coefficient reduction rate is greater than 70%, the extreme pressure film strength is more than or equal to 150 MPa, no bubble is generated in the drilling fluid, other performances of the drilling fluid are not affected, no fluorescence exists, the geological mud logging is not affected, the compatibility is good, and the drilling fluid has the excellent lubricating effect at the temperature of higher than 200 DEG C under the conditions of high density and high pollution.
Owner:新疆宏隆石油化工有限公司
Real-time logging data acquisition and synchronous early-warning method
ActiveCN101976494BReduce Downhole AccidentsMeet the needs of safe drilling and productionSurveyAlarmsReal-time dataWell drilling
The invention discloses a real-time logging data acquisition and synchronous early-warning method, comprising the following steps: configuring data acquisition modules in well sites, configuring basic information of the well sites, and establishing an early-warning model; acquiring the real-time data of the well sites, and analyzing and formatting the real-time data; classifying and carrying out statistics on the real-time data according to the early-warning model for carrying out comprehensive analysis and judgment and early warning; and processing the formatted data and the abnormal information obtained based on the early-warning model into a standard format, sending to a base, and carrying out secondary early-warning. In the method, the real-time logging data of a site mud logging unitunder a plurality of operating conditions is acquired and then subject to intellectualized comprehensive analysis and judgment, and primary abnormal early warning is carried out; and meanwhile the data is processed into the standard format and then sent to the base so as to realize a synchronous secondary warning mechanism between the site and the logistical base, thus achieving the purposes of remote automatic monitoring and early warning during the well drilling process in a plurality of the well sites, reducing downhole accidents and meeting the demand for safety drilling production.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Integrated drilling dynamics system and method of operating same
InactiveCN1739042AReal-time adjustmentEasy to operateSeismology for water-loggingClosed loopSimulation
A method and apparatus for controlling a drilling operation involving the rotation of a bottom-hole assembly carried by a drillstring. In one embodiment, an integrated, closed-loop rigsite analysis system is provided for acquiring and analyzing real-time mud logging and downhole data, and displaying in real-time values of one or more operator-controllable parameters, along with dynamic critical values of at least one controllable operating parameter, thereby enabling an operator to modulate such parameter on a real-time basis to optimize operation. The integrated information is derived by intelligent combination of data into meaningful and useable information that can be displayed in an informative manner.
Owner:HALLIBURTON ENERGY SERVICES INC
Method for establishing orthotropic shale rock physical model
ActiveCN110909486ASolve the problem that the stiffness coefficient is difficult to obtainHard to getDesign optimisation/simulationPorosityWell logging
The invention discloses a method for establishing an orthotropic shale rock physical model. The method comprises the following steps: through logging, mud logging, indoor testing, anisotropic SCA andDEM models, isotropic SCA and DEM models, a Schoenberg linear sliding model and a Brown-Korringa model, establishing a rock physical model capable of predicting the shale stiffness tensor. According to the method, the influence of inorganic matter pores and organic matter pores on a modeling result is considered respectively; the contents of organic matter pores and inorganic matter pores are respectively calculated by utilizing the contents of the adsorbed gas and the free gas and combining the total porosity, the cause of shale anisotropy and the condition that vertical cracks are developedare comprehensively considered, and the problem that the orthotropic shale rigidity coefficient is difficult to obtain is solved.
Owner:SOUTHWEST PETROLEUM UNIV
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