Abstract: The disclosure relates to a spray gun, and particularly relates to a suction pipe rotating device, and a spray gun with same. The device includes: a rotary knob rotatably arranged at a top of a gun body of the spray gun; a rotary connecting portion, where one end of the rotary connecting portion is arranged on the rotary knob and is movably inserted into a material suction hole of the spray gun; and an angle suction pipe including a straight pipe and an inclined pipe that are connected to each other, where the straight pipe is rotatably arranged in the material suction hole and is connected to the other end of the rotary connecting portion, the inclined pipe is obliquely arranged, and an end of the inclined pipe is close to a joint between a side wall and a bottom of a material barrel of the spray gun.

Abstract: Examples of methods and systems are disclosed. The methods may include, obtaining a seismic dataset regarding a subsurface region of interest and obtaining a well log for each of a plurality of wellbores penetrating the subsurface region of interest. The methods may also include determining a geological surface from the seismic dataset, wherein the geological surface includes seismic-estimated orientation data estimated at a plurality of points on the geological surface. The methods may further include determining an intersection point for each of the plurality of wellbores with the geological surface, wherein the intersection point includes well-measured orientation data. The methods may still further include generating an updated geological surface by updating the seismic-estimated orientation data at the plurality of points on the geological surface based, at least in part, on the well-measured orientation data.

Abstract: An integrated detection test device for a drill bit and a rotary blowout preventer and a detection method thereof are provided. The test device includes a support frame, a rotary shaft is mounted on the support frame, and an upper end of the rotary shaft is connected to a piston rod of a first hydraulic cylinder fixed on the support frame; and the rotary shaft is connected to a driving device through a rotary disc sleeved outside the rotary shaft. A pit sinking to a fixing plane of the support frame is arranged below the support frame; and an L-shaped track and a transport vehicle slidably connected to the track are mounted in the pit and used to transport the rotary blowout preventer or the drill bit test bench to a test position.

Abstract: The present disclosure provides a swaddle baby sleeping bag, which includes a sleeping bag body and a zipper arranged on the sleeping bag body. The sleeping bag body is provided with a head opening, a zipper opening and two foot openings. The head opening is located at an upper side of the sleeping bag body, the foot openings are located at a lower side of the sleeping bag body, and the zipper is arranged along the zipper opening.

Abstract: A multifunctional rotary blowout preventer test device and a method thereof are provided. The device includes a test box body and a rotary blowout preventer body, a base is fixedly connected inside the test box body with screws, and two first receiving blocks are fixedly connected to a top of the base with screws. Through the arrangement of the structures such as a motor and an output shaft, the motor is started, the output shaft is driven to rotate, a rotating rod is driven to rotate, a forward-rotating screw rod and a reverse-rotating screw rod are driven to rotate, a right-moving sliding block and a left-moving sliding block are driven to move.

Abstract: A method for calculating a surface relaxation rate of a shale includes: a relaxation time T distribution curve and a pore throat radius r distribution curve are obtained through experiments; abscissas of the two distribution curves are standardized, and the abscissa of the relaxation time T distribution curve is expanded or shrunk to ensure an abscissa value corresponding to a maximum ordinate value in the transformed relaxation time T distribution curve is same as an abscissa value corresponding to a maximum ordinate value in the pore throat radius r distribution curve; straight lines with a number of N parallel to a y-axis of a combined curve graph including the two distribution curves are drawn and a ? value corresponding to each straight line is calculated; and ? value with the number of N are processed to obtain a final surface relaxation rate ??.

Abstract: Systems and methods for voice-enabled transactions are disclosed. A merchant system may generate a transaction request comprising a transaction amount and a merchant identifier. The merchant system may invoke an audio signal generator to generate an audio transaction signal comprising the transaction request data. A voice assistant may play the audio transaction signal. The user initiating the transaction may use a mobile device to detect and ingest the audio transaction signal. In response to detecting and ingesting the audio transaction signal, the mobile device may interact with a payment network to authorize, process, and complete the transaction request. The payment network may transmit a transaction approval to the merchant system.

Abstract: Methods and systems for determining a rock facies map are disclosed. The method includes obtaining a three-dimensional (3D) seismic image and a plurality of well logs, and identifying a horizon and determining a set of bandlimited 3D seismic images. The method further includes determining a set of mono-frequency maps by applying spectral decomposition to the 3D seismic image and determining a seismic attribute map based on the set of mono-frequency maps and a machine learning network. The method still further includes identifying a set of rock facies based, at least in part, on the plurality of well logs, determining a transformation function that maps a subset of rock facies to values of the seismic attribute map, and determining the rock facies map based on the seismic attribute map and the transformation function.

Abstract: A method for modeling compaction in a reservoir including obtaining a profile of vertical burial depth, a profile of effective stress against the vertical burial depth, and approximating a plurality of rock grains with a hexagonal closed-packed arrangement of spheres to estimate compacted mechanical and chemical porosity profiles.

Abstract: A method for predicting a quality of a reservoir, including the steps: drilling a well that penetrates the reservoir, acquiring one-dimensional (1D) input data (1204) from the well, wherein the input data (1204) include: depositional temperature and burial depth as function of a depositional time, and facies data and compaction data (1208), adding a time interval to the depositional time, entering the 1D input data (1204) in a diagenesis model, wherein the diagenesis model includes a compaction model that outputs a predicted compaction at a depositional time, and a cementation model that outputs a predicted cementation at the depositional time, repeating the previous two steps until the depositional time is the present time, and the diagenesis model outputs a predicted compaction curve with porosity as function of depth.

Abstract: A method includes drilling a wellbore in a current well. An interval of the wellbore comprises a first portion of the wellbore and a second portion of the wellbore. The method also includes obtaining an offset drilling log and an offset lithology log for a geologically similar interval in an offset well and training a first machine learning model, using the offset drilling log, to produce a first trained machine learning model. The method further includes producing, using the first trained machine learning model, a forecasted drilling log for the second portion of the wellbore in the current well, training a second machine learning model, using a gradient boosting machine learning technique, the forecasted drilling log, and the offset lithology log, to produce a second trained machine learning model, and producing, using the second trained machine learning model, a forecasted lithology log for the second portion of the current well.

Abstract: A method for quantifying DNA in a specimen includes: a step of performing PCR by adding, to a first container containing a specimen and a second container containing a known amount of standard DNA, the same number of copies of internal control DNA, a PCR primer pair for amplifying the DNA in the specimen and the standard DNA, a PCR primer pair for amplifying the internal control DNA, an oligonucleotide fluorescence-labeled probe, an oligonucleotide fluorescence-labeled probe, and a PCR buffer solution containing a DNA polymerase; a step of measuring a difference between Ct values in the PCR by comparing Ct values for the internal control DNA contained in the first container and the second container; a step of correcting a Ct value for the DNA in the specimen contained in the first container; and a step of measuring an amount of DNA in the specimen from a calibration curve.

Abstract: A method and system for determining a set of final first breaks (390) of a sonic dataset (250) are disclosed. The method includes determining a sonic slowness log from the sonic dataset (250) and for each trace recorded by a subset of the plurality of receivers (101-113) determining an initial first break estimate (410) for each trace, and determining a second first break estimate (510) based on an energy ratio within a time window surrounding the initial first break estimate (410). The method further includes, for each of the plurality of traces in the sonic dataset (250), predicting a refined first break estimate (610, 620, 630) based, at least in part, on the second first break estimates (510), the sonic slowness log, and an inter-receiver distance, and determining the set of final first breaks (390) of the sonic dataset (250) by applying a time shift to the refined first break estimates.

Abstract: A method for obtaining geological heterogeneity trends of a geological formation, including the steps: drilling wells (w1, w2, w3, w4, w5) that penetrate the formation, acquiring well logs (log 1, log 2) for each well (w1, w2, w3, w4, w5) as function of depth inter Vals (Dk) of the respective well, determining a third degree tensor (Tk, m, n), where a z-dimension denotes the depths, a x-dimension denotes the well logs, and a y-dimension denotes the wells, extracting matrices (L1k,m, L2k,m, . . . , LMk,n) from the tensor (Tk, m, n), clustering the matrices (L1k,n, L2k,n, . . . , LMk,n) based on the characteristics of the corresponding well logs (log 1, log 2) to a clustering result matrix, aggregating the clustering result matrix to a cluster ensemble (?1, ?2, . . . , ?M), and spatial partitioning the cluster ensemble (?1, ?2, . . . , ?M) to a map that shows the geological heterogeneity trends associated with cluster types of the wells (w1, w2, w3, w4, w5).

Abstract: The passenger boarding includes a rotunda, a tunnel portion, a cab and a first detection device configured to detect an angle of the rotunda from the first axis around an origin point, and a second detector configured to measure a distance of the tunnel from the origin point in the extensible/contractable direction, provided at the tunnel.