Abstract: Screen device (1) comprising a screen (2) which, on a screen edge (4), is provided with a fitting element (5), a screen slat (3) which comprises a fitting slot (6), in which this fitting element (5) is at least partly accommodable and one or several click-action means (9, 10) which are at least partly elastic in order to secure the fitting element (5) in the fitting slot (6) by means of a click-fit connection.

Abstract: A ceiling ladder having a plurality of sections that can be climbed by a user when in an unfolded position into an attic and that can be folded together into a retracted position to be stored above the ceiling. The ladder has a deep step, which has a width greater than the width of other steps of the ladder, in which is located between about 2-5 feet from the floor when the ladder is in the unfolded position so user can stand on the deep step in place objects into the attic without having to climb into the attic. A method. A deep step.

Abstract: A ladder stabilizing apparatus that is configured to provide improved stability of a ladder. A plurality of ladder stabilizing apparatus are secured to a desired ladder on opposing rails thereof. The ladder stabilizing apparatus includes an anchor member wherein the anchor member is releasably secured to the rail of the ladder. The lateral support members of the ladder stabilizing apparatus are secured to the anchor member and extend outward therefrom away from the ladder. A shank member is rotatably mounted within the lateral support members and facilitates the rotation of the leg members. The leg members comprise a plurality of telescopic sections that are adjustable with respect to each other. A base plate member is located at the end of the leg member distal to the shank member. Access rail members are secured to the top of the ladder on opposing rails.

Abstract: A drill bit for coupling in use downhole drilling apparatus, the drill bit comprising: an annular coring drill bit that is rotatable to cut a formation bore face to create a core plug, a concentric drill bit that can be repeatedly axially moved (such as by oscillation (such as a vibration) and/or impact) to break the core plug.

Abstract: A drill bit including a body having a face and a plurality of blades disposed on the face of the body. Each of the plurality of blades may have a row of cutters disposed thereon, and the rows of cutters may collectively define a cutting profile of the drill bit. At least some of the cutters along the cutting profile may have alternating positive back rake angles. The difference between a majority of back rake angles on adjacent cutters along the cutting profile may be less than 20°.

Abstract: Earth-boring tools may have a body, a cutting element attached to the body at a first location, and a formation-engaging structure attached to the body at a second location. The formation-engaging structure may be movable during a drilling operation between a first position and a second position. In the first position, the formation-engaging structure may be located rotationally behind the cutting element at a first radial distance from a longitudinal axis of the body at which the cutting element will at least initially shield the formation-engaging structure from engaging a formation. In the second position, the formation-engaging structure may be located at a different second radial distance from the longitudinal axis of the body at which the formation-engaging structure will engage a formation.

Abstract: A drill bit including a body having a face, a blade disposed on the face, and a row of cutters disposed on the blade. At least some of the cutters may have alternating positive back rake angles. The difference between a majority of back rake angles on adjacent cutters may be less than 20°.

Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.

Abstract: The subject disclosure provides for a mechanism implemented with neural networks through machine learning to predict wear and relative performance metrics for performing repairs on drill bits in a next repair cycle, which can improve decision making by drill bit repair model engines, drill bit design, and help reduce the cost of drill bit repairs. The machine learning mechanism includes obtaining drill bit data from different data sources and integrating the drill bit data from each of the data sources into an integrated dataset. The integrated dataset is pre-processed to filter out outliers. The filtered dataset is applied to a neural network to build a machine learning based model and extract features that indicate significant parameters affecting wear. A repair type prediction is determined with the applied machine learning based model and is provided as a signal for facilitating a drill bit operation on a cutter of the drill bit.

Abstract: A drill string section of a drill string for drilling in the ground having arranged on the outside of the drill string section at least one marking by means of which abrasion can be recognized.

Abstract: A downhole tubing string and an umbilical harness are combined in a wellbore. The umbilical harness, which is formed remote from the wellbore, includes an umbilical, and umbilical connectors connected to lines in the umbilical. Connectors attach to well components and make up part of the downhole tubing string. The well components include valves, sensors, and actuators. The umbilical connectors attach to the umbilical at strategic locations so the umbilical connectors can reach and be mated to corresponding component connectors when the umbilical harness and downhole string are combined. Electricity, communication signals, or both, are transmitted along the lines in the umbilical, which are selectively conveyed to each component via the mated connectors. As the umbilical connectors are installed on the umbilical prior to wellsite delivery, the umbilical harness and downhole string are combined by engaging plugs on respective ends of umbilical connectors and corresponding ends of component connectors.

Abstract: For transmitting signals from a collar based tool to an MWD tool string, the collar based tool is connected to an adapter having a wet connector at its end, and the MWD tool string is connected to a centralizer having another wet connector at its end. The adapter includes a rotatable portion that can be oriented in a predetermined orientation, for example, a direction related to the high side of the bent housing of a mud motor tool. The centralizer and the adapter are stabbed together, thus mating the wet connectors. During stabbing, the MWD tool string orients itself with the predetermined orientation. Also, the wet connectors align themselves.

Abstract: A centralizer assembly installed on a casing section. A bow spring assembly having bow spring members is installed around the outer surface of the casing section and can rotate about the outer surface of the casing section. At least one portion of the casing section is swaged to increase the outer diameter of that section. Bow spring heel supports prevent bow spring members from contacting the outer surface of the central casing section when compressed. Non-abrasive materials prevent damage to wellhead or other polished bore receptacles.

Abstract: A portable apparatus for vertically positioning tubulars in a mousehole of a drilling rig includes a main body housing a winch and an anchor point. The main body is configured to be radially aligned with the mousehole. The apparatus also includes a float assembly which is suspended within the mousehole below the main body and a cable wound onto the winch. The cable extends downward into the mousehole traversing the mousehole at the float assembly and then extends upward to and attached to the anchor point on the main body.

Abstract: A method, an apparatus and a system are for aligning a movable first pipe coaxially with a substantially stationary second pipe to prepare a threaded end portion of the first pipe for engagement with a threaded end portion of the second pipe.

Abstract: Methods and systems for controlling a stand-building process of which the method includes engaging a first tubular using an elevator, hoisting the first tubular by raising the elevator, lowering the first tubular into a spider by lowering the elevator, engaging the first tubular using the spider, disengaging the first tubular from the elevator after engaging the first tubular using the spider, engaging a second tubular using the elevator, hoisting and lowering the second tubular into engagement with the first tubular, connecting together the first and second tubulars, and disengaging the spider from the first tubular after connecting together the first and second tubulars. At all times during the stand-building process, a sequential step control system locks an open/close control of the elevator control, or locks an open/close control of the spider control, or locks both, depending on a step of the stand-building process being performed.

Abstract: Devices for exchanging properties, such as pressure, between at least two fluid streams and related methods may include pistons coupled to a valve stem. The valve stem and valve body may be configured to define a primary seal between the one or more pistons and the valve body and a secondary seal between the one or more pistons and the valve body.

Abstract: Provided herein is an intervention tool and a method for fracturing multiple lateral wellbores in a well system. The intervention tool, in one aspect, includes a radial outer housing, the radial outer housing forming an interior bore configured to flow fluid, and an expansion member coupled proximate an outer surface of the radial outer housing. The intervention tool according to this aspect further includes a sliding sleeve positioned along an interior surface of the radial outer housing and engageable with the expansion member, the sleeve including a collection of slots or catches configured to move the expansion member between a radially retracted position when the sliding sleeve is in a first linear position and a radially expanded position when the sliding sleeve is in a second linear position.

Abstract: Milling systems, tools, and methods include using a mill with secondary attrition system to re-mill cuttings and other debris away from the face of the mill. The secondary attrition system may be located uphole of the mill may be used to stage conditioning and re-sizing of debris. After debris is generated by the mill, the secondary attrition system may re-mill the debris to a finer size before allowing the debris to pass out of the sleeve. The debris may be re-milled by secondary cutting elements while within an annular gap positioned radially between the sleeve and a drive shaft for the mill. The annular gap may have a variable width as a result of a tapered outer surface of the drive shaft and/or a tapered inner surface of the sleeve. The variable width may cause debris to be re-milled into increasingly finer sizes.

Abstract: The disclosure herein includes a tubular cutting assembly for cutting a downhole tubular string, which tubular cutting assembly may include: a landing seat capable of being disposed on the downhole tubular string; and a tubular cutting assembly including: a landing mandrel capable of being coupled to the landing seat; a motor disposed below the landing mandrel; and a cutter assembly coupled to the motor.

Abstract: A downhole tool includes a component that is configured to dissolve in a wellbore fluid, and a protective coating applied to the component. The protective coating is configured to isolate the component from the wellbore fluid, and to fracture in response to the component deforming and expose the component to the wellbore fluid.

Abstract: Provided is a downhole vibrating tool comprising an interconnected power section, axial shock assembly and lateral vibration assembly wherein the power section comprising a rotor and a stator, the rotor comprising a plurality of lobes and the stator comprising a second plurality of recesses adapted to receive the plurality of lobes, the number of recesses greater than the number of lobes; the axial shock assembly comprising a valve assembly, the axial shock assembly adapted to vary fluid flow therethrough; and the lateral vibration assembly comprising an eccentric mass; wherein the power section, the axial shock assembly and the lateral vibration assembly are aligned linearly.

Abstract: An object of the present invention is to provide a well plugging apparatus configured to reduce an expense and shorten a process for well drilling and a temporal plugging method of a well using the well plugging apparatus. The well plugging apparatus according to the present invention is a well plugging apparatus that includes a downhole plug, a setting tool (2) to operate and install the downhole plug, and an obstacle that plugs a flow path in the downhole plug. Since the setting tool (2) internally includes the obstacle, after the downhole plug is installed inside the well, and the setting tool (2) is removed, the flow path in the downhole plug can be reliably plugged in a short time. Additionally, the use of the well plugging apparatus of the present invention allows temporarily plugging the well reliably in a short time.

Abstract: An apparatus having a shock-absorbing sleeve is disclosed. The apparatus comprises a housing, an axially moveable sleeve received in the housing and a sealed annular space having a fixed volume axially between the housing and the sleeve. A barrier axially moveable with the sleeve divides the annular space into a first and a second chambers. The first and second chambers are filled with uncompressible dampening fluid. One or more metering passages across the barrier fluidly connect the first and chambers. During the axial movement of the sleeve, the volume of the first chamber is reduced and that of the second chamber is increased, forcing the fluid in the first chamber to flow into the second chamber in a controlled manner to dampen the movement of the sleeve.

Abstract: A completion sleeve includes a body that defines an inner passage and a window that provides a lateral exit from the inner passage. A deflector is positioned within the inner passage and is pivotable between a stowed position, where the deflector is received within a pocket defined in a sidewall of the body, and a deployed position where the deflector is positioned to deflect downhole tools laterally through the window. An actuator is positioned within the sidewall and operatively coupled to the deflector. The actuator is actuatable to move the deflector between the stowed and deployed positions.

Abstract: A downhole rotating machine includes a stator having stator windings and corresponding magnetic flux guides and a rotor having a plurality of magnets configured to cooperate with the stator windings and the corresponding magnetic flux guides to generate a magnetic field in a magnetic gap that is substantially parallel to an axis of rotation of the rotor, wherein the magnetic gap provides a magnetic gap separation between the plurality of magnets and the corresponding magnetic flux guides that is at least five percent of an overall diameter of the downhole rotating machine. A method of operating a downhole tool in a wellbore and a downhole tool are also provided.

Abstract: A power source system including a plurality of cells. The power source system uses electrical charge or current generated by a reaction in at least one of the cells to provide at least one operating material to at least one other of the cells. Optionally, the power source system uses the electrical charge generated by the reaction in the at least one of the cells to provide the at least one operating material to the at least one other of the cells only when the state of charge of the at least one of the cells is equal to or below a threshold or when the use of the cell is equal to or above a threshold. Optionally, in an initial or non-operational state, one or more or each of the cells is dry or without the at least one operating material and the power source system is configured to selectively switch at least one of the plurality of cells from the non-operational state to an operational state by providing the at least one operating material to the at least one cell.

Abstract: An offshore production system includes a surface vessel, a tubular tendon extending between the surface vessel and a lower connection system disposed at a seabed, the riser coupled to the surface vessel with an upper connection system, and an electrical cable extending through a central passage of the tubular tendon, wherein the upper connection system comprises a connector that physically supports the electrical cable.

Abstract: A tubular body for a wellbore. The tubular body comprises an elongated pipe body having a box end and a pin end, defining a wall. The tubular body includes a filter screen. The filter screen is disposed around an outer diameter of the wall along at least a portion of the elongated body. The filter screen defines a cylindrical body having slots there along. A plurality of compressible particles are held within the filter screen. Each of the compressible particles is fabricated to collapse in response to fluid pressure communicated through the slots. A method of mitigating pressure within a trapped annulus is also provided herein. The method includes the use of at least one of the tubular bodies along a casing string.

Abstract: An expandable liner hanger includes an anchoring element having multiple circumferential ridges that include flow relief grooves which prevent buildup of hydrostatic pressure between the liner hanger and well casing during expansion of the liner hanger. Upon liner hanger expansion the ridges come in high interference with wellbore casing and couple the liner hanger to the wellbore casing. According to another embodiment of the invention, the ridges are formed by a spiral ridge extending along an outer periphery of the hanger thus providing a pressure relief passage for the fluid.

Abstract: A firing assembly for a wellbore perforating gun or other downhole tool includes: one or more casings connected together to form a firing head containment body, the firing head containment body is in fluid communication with a firing assembly that includes a click pressure firing module that allows the wellbore to be pressurized to high pressures required for pressure testing the well casing one or more times without firing the gun or actuating a certain downhole tool, and after a predetermined number of pressure increase events, allows the subsequent high pressure activation to reach the firing pin or actuation device and fire the gun or activate the tool without further activity from the surface other than applying the pressure.

Abstract: A flow meter well tool includes a volumetric well flow meter to be positioned in a wellbore. The volumetric well flow meter includes a hollow cylindrical tubing to be positioned in the wellbore. The tubing splits well fluid through the wellbore into an internal fluid through the volumetric well flow meter and an external fluid through an annulus between the wellbore and the volumetric well flow meter. The hollow cylindrical tubing includes an internal portion, where an internal cross-sectional area of the internal portion is less than an internal cross-sectional area of the hollow cylindrical tubing.

Abstract: A multi-zone, one trip completion system for a wellbore is described. A plurality of isolation packers is installed in borehole to isolate a plurality of zones of the annulus between a tubing string and a wellbore. Each tubing string section is positioned in a zone and comprises a selectively openable stimulation port to provide stimulation fluid to its zone and a selectively openable production port to receive fluid from its zone. The system also comprises a circulation system with a plurality of circulation tubes and circulation tube valves, being configurable in a plurality of configurations to selectively connect, via a circulation flow path, the central bore or the borehole annulus of a wellbore at each of the plurality of sections, to an upper circulation flow path open to an annulus above an uppermost of the plurality of isolation packers.

Abstract: A permanent completion system is disclosed comprising: an upper ACP installed in the wellbore powered by a first power cable from the surface; a lower ACP installed in the wellbore below the upper ACP, and being powered by a second power cable from the surface and being connected to the upper APC by a spacer tube; and a heating assembly connected to the lower ACP in the wellbore and receiving power from the second power cable, the heating assembly, such as a mineral insulated heater cable, providing heat to the wellbore. The heating assembly preferably is retrievable and can be conveyed to the lower ACP by coil tubing. The coil tubing can be removed after conveying the heating assembly into place to permit further access to the upper ACP, e.g., to permit mechanical and electrical connection of a retrievable ESP assembly to the upper ACP.

Abstract: Pressure exchange devices and related systems may include a valve device configured to selectively place a fluid at a first higher pressure in communication with another fluid at a lower pressure in order to pressurize the another fluid to a second higher pressure. Methods of exchanging pressure between at least two fluid streams may include a pressure exchanger having two low pressure inlets.

Abstract: An apparatus for use in forming a plug during hydraulic fracturing of a subterranean soil formation includes a top tubular retaining body extending between top and bottom ends and having a frustoconical outer surface extending from the bottom end thereof; and a plurality of slip arms located around the outer surface of the retaining body, each slip arm extending between top and bottom ends and having an inner surface extending from the slip arm top end corresponding to the outer surface of the retaining body and an exterior surface adapted to engage a wellbore. The plurality of slip arms extend from a ring surrounding the retaining body.

Abstract: An in-line treatment cartridge and methods of using same are disclosed. The in-line treatment cartridge can include a cylindrical body configured to allow fluid to flow therethrough and a plurality of particulates contained within the body. At least one particulate of the plurality of particulates can include a chemical treatment agent. The at least one chemical treatment agent can separate from the at least one particulate upon contact with a fluid.

Abstract: A method for automated control of a drilling operation of a blast hole drilling machine using a down-the-hole drill bit mounted on a drill string is disclosed. The method may include: receiving input data from a user input including information of the drill bit, drill string weight, and desired hole settings; receiving a command from the user to initiate an automatic down-the-hole operation; identifying a location of the down-the-hole drill bit; and using the received input data and based on the location of the down-the-hole drill bit, automatically initiating the steps of: collaring a hole; drilling the hole; and retracting the drill when the hole is drilled.

Abstract: A system for drilling a well may be adapted to process signals received from a fiber optic cable located in the casing of a previously drilled well or wells. The fiber optic cable may act as a distributed sensor receiving acoustic signals generated during the drilling of the well, and the system may be programmed to process the signals from the fiber optic cable to locate the borehole of the well being drilled, including its location relative to the previously drilled well or well. The system may be used to automatically update a well plan for the well being drilled responsive to information about the location of the borehole and also may be used to automatically adjust one or more drilling parameters or drilling operations responsive to the location of the second well borehole.

Abstract: A borescope includes a housing extending from a first end toward a second end, the housing including a first transparent viewing section extending circumferentially around a longitudinal axis of the housing and defining an exterior of a portion of the housing; a first imaging assembly configured to rotate about the longitudinal axis of the housing, and also pivot relative to the longitudinal axis of the housing; and a second imaging assembly disposed within the housing, the second imaging assembly being configured to rotate about the longitudinal axis of the housing, wherein the second imaging assembly is configured to visualize a field of view exterior of the housing through the first transparent viewing section.

Abstract: A method of modeling a wellbore path in an earth model, including receiving, from an electronic drilling recorder coupled to a bottom hole assembly (BHA), a set of BHA data, and a set of operating parameters data and receiving, a set of rock formation data; generating, a representation of a wellbore path in a first section of the earth model, by assessing the set of BHA data, the set of operating parameters data, the set of rock formation data, and a first set of parameters quantifying bit steerability, walk, coefficient of friction, and overgauge borehole information. The method includes modifying, based on data received from a survey corresponding to the first section of the earth model, the first set of parameters to generate a second set of parameters, and generating a future wellbore path in a second section of the earth model by applying the second set of parameters.

Abstract: A downhole tool is positioned in a borehole of a geological formation at a given depth. A formation property is determined at the given depth. The positioning and determining is repeated to form data points of a data set indicative of formation properties at various depths in the borehole. One or more outlier data points is removed from the data set based on first gradients to form an updated data set. One or more properties associated with a reservoir compartment are determined based on second respective gradients associated with the updated data set.

Abstract: This inventive method provides a novel way of modeling basins in planning the drilling of crude oil and natural gas wells by accounting for thermodynamic considerations in tracking the pore pressure of a location of interest. By plotting the energy gradients, heat flux, and thermal conductivity of the location of interest, the user can more accurately identify the location of the Top of Geopressure and additional pertinent information during the well drilling planning process that can reduce costs and increase the safety of the process.

Abstract: A wellhead monitoring system includes a conversion assembly, the conversion assembly including an actuator element for modifying an operating mode of a valve from manual to remote. The system also includes one or more sensors, associated at least one of a fracturing tree or the conversion assembly, the one or more sensors obtaining wellhead operating conditions. The system further includes a control unit, adapted to receive information from the one or more sensors, the control unit presenting the information, on a display, and transmitting the information to a remote system for analysis.

Abstract: An assembly, method and device are for performing a survey of tubing which is stuck in a borehole. The assembly has a tractor for advancing the assembly along the tubing on an inside thereof; at least one engager connected to the tractor, the engager being configured to couple the assembly to a wall of the tubing, such that a stimulus applied to the tubing, e.g. components of force or manipulation of the tubing, can be communicated to produce a response in a part of the assembly. A detector may detect the response when the assembly is coupled to the wall of the tubing, in order to produce data based on the response for determining a location at which the tubing may, or may not, be subjected to at least one operation for freeing the string or a portion thereof.

Abstract: Certain methods to determine wellbore relative permeability ratio from wellbore drilling data are described. A section of a wellbore is drilled in a subterranean zone including a subsurface reservoir in which hydrocarbons are entrapped. The hydrocarbons include a multiphase fluid including oil phase and water phase. A relevant suite of logs of rock in the section of the wellbore is determined. Water saturation is determined from the relevant suite of logs. A relative permeability ratio of the rock in the section to a flow of the oil phase and the water phase is determined. Using the relative permeability ratio, a flow rate of the oil phase or a flow rate of the water phase through the rock is determined.

Abstract: Apparatuses, methods, and systems are described herein for transmission of measurement while drilling (MWD) data from a MWD tool to a receiver. Such apparatuses, methods, and systems may modify MWD data to allow for transmission of the modified MWD data in a manner that conserves electrical power of the MWD tool. For example, the MWD data can be modified to allow for effectively slower transmission of the data while adhering to existing transmission settings. Such a technique allows for MWD data to be conveyed in an electrically efficient manner, reducing maintenance and recharging requirements of the MWD tool.

Abstract: The present invention relates to a method of estimating the region of damage due to collapse in the wall of a well during the drilling operation, normally using drilling fluid, where said well can, for example, be intended either for the injection or else for the production of a gas or oil reservoir. Other uses can be found in mining and in civil engineering work. This method is characterized by a set of analytical steps that allow establishing, for example, optimal drilling parameters so as to allow the fastest possible drilling speed that is also safe enough to allow is charging the collapse material without jamming the drilling tool. This method likewise allows assessing both the width and depth of damage in the wall of the well.

Abstract: The present disclosure belongs to the field of petroleum exploration and development and, in particular, relates to a system and a method for analyzing while-drilling rock fragments in oil and gas field. The system includes a sample preparation mold and a sample scanning apparatus; the mold is configured to quickly batch prepare fragments into scanning ready samples; the apparatus is portable and configured for batch scanning and analyzing the samples, and having the capabilities of anti-vibration, temperature control, dust prevention, and adaptability to a harsh well site environment; the method includes a scanning step where surface images, elements and mineral types of rock can be rapidly quantitatively analyzed, and lithologies thereof can be identified; the method also includes the analysis step in which rock's elastic parameters and target zone of the vertical well are determined, and geosteering and design of staged fracturing of horizontal well can be provided.

Abstract: A flow meter includes a cylindrical tubing configured to be positioned in a wellbore, the cylindrical tubing including a flow mixer configured to produce a turbulent fluid flow of a multiphase fluid in the wellbore. The flow meter includes a tuning fork disposed in the cylindrical tubing separate from the flow mixer, the tuning fork configured to contact the turbulent fluid flow of the multiphase fluid and vibrate at a vibration frequency in response to contact with the turbulent fluid flow, and a controller to determine a fluid density measurement of the multiphase fluid based at least in part on the vibration frequency of the tuning fork.