Abstract: In an example, simple mail traffic protocol (SMTP) traffic can be extracted from network traffic of a network. The SMTP traffic can be processed using a bot detector employing a machine learning model trained to determine whether the SMTP traffic contains a malicious SMTP session. Alert data can be provided in response to detecting the malicious SMTP session.

Abstract: A system includes an electric submersible pump assembly and a control valve assembly. The electric submersible pump assembly transports a fluid in a casing string of a well to a surface location and includes a pump that receives the fluid through a pump intake and vents the fluid through a pump discharge when activated. The electric submersible pump assembly further includes a shaft that is fixed to the pump and extends downhole from the pump. The control valve assembly includes a propeller shaft axially movable along a central axis of the system, a propeller attached to the propeller shaft that pushes the propeller shaft downhole when the pump of the electric submersible pump assembly is active, a shaft coupler that connects the propeller shaft and the shaft of the electric submersible pump assembly, and a stinger that has a conduit for the fluid to flow from the casing string to the pump intake.

Abstract: A hydrocarbon feed stream may be processed by a method that may include catalytically cracking a hydrocarbon feed stream in a counter-current reactor to produce a first effluent stream, and processing a portion or all of the first effluent stream by at least one or more separations. The at least one or more separations may form at least a second effluent stream including at least 95 wt. % C4-C6 hydrocarbons, and a third effluent stream including at least 95 wt. % of ethane, propane, or a combination thereof. In some embodiments, the method may further include catalytically cracking a portion or all of the second effluent stream in a second reactor to form a second reactor effluent stream, combining a portion of all of the second reactor effluent stream with the first effluent stream, steam cracking a portion or all of the third effluent stream to form a steam cracked effluent stream, and combining a portion or all of the steam cracked effluent stream with the first effluent.

Abstract: A method of hydroprocessing a hydrocarbon feed may comprise fractionating a hydrocarbon feed into “n” fractions, wherein “n” is at least 2; hydroprocessing an (n?1)th fraction of the hydrocarbon feed in an (n?1)th hydroprocessing reaction zone of a hydroprocessing unit, thereby producing an (n?1)th effluent The method may further comprise hydroprocessing the nth fraction and the (n?1)th effluent in an nth hydroprocessing reaction zone, thereby producing an nth effluent. The (n?1)th hydroprocessing reaction zone may be upstream of the nth hydroprocessing reaction zone. The (n?1)th fraction may have a greater boiling point range than the nth fraction. Hydrogen and the hydrocarbon feed may be in co-current flow in the hydroprocessing unit.

Abstract: A system for detecting and locating sand accumulation in an enclosure and for removing the detected and located sand accumulation, having a sand accumulation locator assembly adapted to detect and locate one or more accumulations of sand in the enclosure; a sand removal mechanism adapted to remove the detected one or more accumulations of sand; and a controller communicatively coupled to the sand accumulation locator assembly and the sand removal mechanism, said controller being adapted to: control the sand accumulation locator assembly to detect and locate the one or more accumulations of sand in the enclosure; and control the sand removal mechanism to remove the one or more detected accumulations of sand based on corresponding one or more locations of accumulated sand detected by the sand accumulation locator assembly.

Abstract: A sulfur storage tank includes a bottom plate, an outer wall, and a cleanout door. The outer wall surrounds and is coupled to the bottom plate. The cleanout door is installed on the outer wall. The cleanout door includes an edge and a drain nozzle. The edge abuts the bottom plate. The drain nozzle is installed on the cleanout door. The drain nozzle defines a centerline offset from the edge. The drain nozzle is configured to gravity drain fluid from the sulfur storage tank.

Abstract: A downhole tool includes a top sub-assembly configured to connect to a downhole conveyance that is operable to run the tool into a wellbore formed from a terranean surface to a subterranean formation; a housing coupled at an uphole end to the top sub-assembly, the housing defining an interior volume; a vacuum positioned in the interior volume and configured to generate a fluid suction; a debris chamber fluidly coupled to the vacuum and positioned in the interior volume; a nozzle coupled at a downhole end of the housing, the nozzle including one or more openings; and a controller communicably coupled to the vacuum and configured to perform operations including activating the vacuum to generate the fluid suction to circulate wellbore debris through the vacuum and into the debris chamber.

Abstract: A hydrocarbon feed stream is exposed to heat in an absence of oxygen (pyrolysis) to convert the hydrocarbon feed stream into a solids stream and a gas stream. The solids stream includes carbon. The gas stream includes hydrogen. The gas stream is separated into an exhaust gas stream and a first hydrogen stream. The first hydrogen stream includes at least a portion of the hydrogen from the gas stream. The carbon is separated from the solids stream to produce a carbon stream. Electrolysis is performed on a water stream to produce an oxygen stream and a second hydrogen stream. At least a portion of the oxygen of the oxygen stream and at least a portion of the carbon of the carbon stream are combined to generate power and a carbon dioxide stream. At least a portion of the generated power is used to perform the electrolysis on the water stream.

Abstract: Systems and methods for obtaining a shape of a component within a subterranean well with an impression tool includes the impression tool having a top sub. The top sub is an elongated member having a central axis and a downhole facing surface. A threaded recess of the top sub extends axially from the downhole facing surface. A bottom body section has a block body, a lead impression block positioned at a downhole side of the block body, and a threaded member located at an uphole side of the block body. The threaded member of the bottom body section threadingly engages the threaded recess of the top sub. The bottom body section is operable to be selectively threaded to, and unthreaded from, the top sub.

Abstract: An automatic valve actuation system includes an actuation device, one or more arms operatively coupled to and extending from the actuation device, and a stem adapter attached to a distal end of the one or more arms to operatively couple the one or more arms to a valve stem of a manually-operable valve. Operation of the actuation device rotates the one or more arms and correspondingly rotates the valve stem to open or close the manually-operable valve.

Abstract: A system and method for operating centrifugal pumps related to net positive suction head (NPSH), including identifying a group of centrifugal pumps and deriving an equation for the group based on manufacturer data of the centrifugal pumps collectively in the group, the equation correlating NPSH required (NPSHr) with flowrate of pumped fluid, wherein the manufacturer data includes NPSHr for each centrifugal pump of the group as a function of the flowrate of the pumped fluid. The technique includes specifying a NPSH margin for NPSH available (NPSHa) above the NPSHr.

Abstract: A method includes conveying a straddle packer assembly into a wellbore that provides a water production zone and first and second oil production zones, the water production zone interposing the first and second oil production zones, deploying the straddle packer assembly and thereby isolating the water production zone from the first and second oil production zones, injecting an injection fluid into the water production zone from the straddle packer assembly, and preventing the influx of water from the water production zone into the wellbore with the injection fluid.

Abstract: An automated method of inspecting a pipe includes: positioning the pipe with respect to a laser scanner using a positioning apparatus; scanning a size of the positioned pipe by the laser scanner; identifying a specification and historical data of the pipe's type by inputting the scanned size to an artificially intelligent module trained through machine learning to match input size data to standardized pipe types and output corresponding specifications and historical data of the pipe types; scanning dimensions of the positioned pipe by the laser scanner using a dimension portion of the identified historical data; comparing the scanned dimensions with standard dimensions from the identified specification; detecting a dimension nonconformity when the scanned dimensions are not within acceptable tolerances of the standard dimensions; and in response to detecting the dimension nonconformity, generating an alert and updating the dimension portion of the identified historical data to reflect the detected dimension n

Abstract: A middleware, for providing an interconnection between heterogeneous applications, receives a first HTTP POST request that includes a header and a body. Then, the middleware creates a HTTP GET request using the header. The middleware establishes a secure connection with an authorization server, and submits the HTTP GET request to the authorization server asynchronously. The middleware receives a response to the HTTP GET request regarding a validation of identifiers in a query string of the HTTP GET request, and decrypts a username and a password using the identifiers in response to the identifiers located in the authorization server. The middleware serializes an output of the decrypted username and the decrypted password in a Java Script Object Notation (JSON) format, and places the output in a body of a second HTTP POST request. The middleware responds the second HTTP POST request to a data server.

Abstract: A method for determining the electrical properties of a core sample having an initial saturation Sw0, an initial true resistivity Rt0, and a porosity ?, including the steps: preparing a brine having a resistivity Rw, flushing the core sample with the brine, determining a first true resistivity Rt1 at a first saturation Sw1, once the resistivity Rw of the brine going into the core sample is the same as the resistivity Rw of the brine going out of the core sample, determining a function Rt=f(Sw) describing the dependency of the true resistivity Rt of the core sample and the saturation Sw in the core sample, based on the initial saturation Sw0, initial true resistivity Rt0, first true resistivity Rt1, and first saturation Sw1, second true resistivity Rt2, and first saturation Sw2, determining the resistivity Ro of the fully saturated core sample by estimating the function Rt=f(Sw) to full saturation of the core sample at Sw=100%, determining a resistivity index I R = R t R o at the Sw, Sw1, Sw2 d

Abstract: The systems and methods described in this specification relate to generating a low frequency model of a subterranean formation for performing a seismic inversion. The systems and methods receive seismic data for a first region of the subterranean formation and well log data of one or more wells located at the first region. The systems and methods determine one or more relative layer attributes of the first region, one or more first input values for a machine learning model, and one or more second input values for the machine learning model. The systems and methods generate, a first relative low frequency model for the first region, and extrapolate, by executing the machine learning model by the processor, the first relative low frequency model to a second region of the subterranean formation.

Abstract: A process for upgrading a naphtha feed includes separating the naphtha feed into at least a light naphtha fraction, contacting the light naphtha fraction with hydrogen in the presence of at least one cyclization catalyst, and contacting the cyclization effluent with at least one cracking catalyst. Contacting the light naphtha fraction with hydrogen in the presence of at least one cyclization catalyst may produce a cyclization effluent comprising a greater concentration of naphthenes compared to the light naphtha fraction. Contacting the cyclization effluent with at least one cracking catalyst under conditions sufficient to crack at least a portion of the cyclization effluent may produce a fluid catalytic cracking effluent comprising light olefins, gasoline blending components, or both. A system for upgrading a naphtha feed includes a naphtha separation unit, a cyclization unit disposed downstream of the naphtha separation unit, and a fluid catalytic cracking unit disposed downstream of the cyclization unit.

Abstract: Methods and systems for wellbore path planning are disclosed. The method includes defining total depth coordinates of a candidate wellbore path within a hydrocarbon reservoir, obtaining geoscience data for a subterranean region enclosing the hydrocarbon reservoir, and obtaining historical drilling data from an offset well in the subterranean region. The method further includes training a machine learning network to predict drilling hazard probabilities along the candidate wellbore path using the geoscience data and the historical drilling data. The method still further includes determining a first wellbore path to terminate at the total depth coordinates using the candidate wellbore path and the trained machine learning network.

Abstract: A well system includes a wellbore penetrating a subterranean formation, production tubing extended into the wellbore and terminating at a completion string, and one or more inflow control devices forming part of the completion string. The inflow control device includes a base pipe defining one or more first flow ports and one or more second flow ports axially spaced from the first flow ports. A first flow regulation device is arranged within the base pipe and actuatable to expose or occlude the first flow ports, and a second flow regulation device is arranged within the base pipe and actuatable to expose or occlude the second flow ports. A downhole shifting device is operable to independently manipulate a position of the first and second flow regulation devices and thereby selectively expose or occlude the first or second flow ports.

Abstract: A system includes an electric submersible pump and a flow regulating valve. The electrical submersible pump includes a pump that, when activated, receives a fluid disposed within a production tubing of a well through a pump intake and vents the fluid through a pump discharge to a surface location. The flow regulating valve includes a flow tube that blocks the fluid from entering the pump intake when the pump is inactive, a piston, connected to the flow tube, that moves the flow tube within the flow regulating valve, and a stinger that includes a conduit for the fluid to flow from the production tubing to the pump. The flow regulating valve further includes a spring that positions the piston within the flow regulating valve when the pump is inactive and a plurality of seals that pressure-seal a pressure chamber which houses a pressure force that is to be applied upon the piston.