Abstract: An exemplary closure system includes, among other things, a striker assembly, a latch assembly, and a hooked structure. In response to the striker assembly and the latch assembly being laterally displaced from each other, the hooked structure engages one of the striker assembly or the latch assembly to block separation of the striker assembly from the latch assembly. An exemplary latching method includes, among other things, engaging a hooked structure in response to a striker assembly being laterally displaced relative to a latch assembly. The engaging blocks the striker assembly from separating relative to the latch assembly.

Abstract: The disclosure relates to a motor vehicle lock arrangement for a closure element which is movably coupled to a motor vehicle body, wherein a motor vehicle lock is provided, which in the mounted state is arranged on the closure element or on the motor vehicle body. It is proposed that a servo drive is provided for exerting a driving force on the closure element in its opening direction, so that the closure element can be moved in a motorized positioning process from a closed position into a gap position, and in this way an engagement gap can be created between closure element and motor vehicle body.

Abstract: The invention relates to a securing device (1), which has a front hood (2) and a hood lock (3) with a lock holder (10), for a motor vehicle. The hood lock (3) has a rotary latch (4) with a pre-latching position and a main latching position in which the front hood (2) is closed and locked, an electric drive (5) which switches the rotary latch (4) from the main latching position into the pre-latching position, and a bayonet-type closure system (13) with a closed position, a release position, and an intermediate position. In the closed position, the rotary latch (4) is located in the main latching position; in the intermediate position, the rotary latch (4) is located in the pre-latching position and the lock holder (10) is engaged with the rotary latch (4); and in the release position, the lock holder (10) is released by the rotary latch (4) and the front hood (2) is unlocked.

Abstract: Disclosed is a refrigerator, more particularly a refrigerator including dual doors that are convenient to use. The refrigerator includes a main body having a storage space therein, a first door hinged to the main body for opening and closing the storage space, a door frame provided at the first door, a second door hinged to the first door, the second door having a side wall, at least a portion of which is inserted into the door frame, and a catching part provided in the side wall, and a locking device for selectively allowing the second door to be turned with respect to the first door, wherein the locking device includes a moving member, the displacement of which is changed depending on the open or closed state of the first door, and a catching member, the displacement of which is changed depending on the displacement of the moving member, whereby the protruding length of the catching member from the door frame is changed, the catching member being selectively caught in the catching part.

Abstract: A system for opening and closing a vehicle hood includes a manual maneuvering element that is able to control positioning of the hood on a vehicle body and a mechanism for locking and unlocking the maneuvering element.

Abstract: A vertically adjustable sash lock is described that improves the seal of windows. The vertically adjustable sash lock may include, for example, a housing configured to be coupled to a first window sash and a rotatable cam configured to rotatably engage with a keeper bracket coupled to a second window sash. A vertical member may be positioned through a threaded aperture of the rotatable cam. A knob coupled to the vertical member may drive a rotation of the vertical member, causing a vertical position of the rotatable cam relative to a bottom surface of the housing to adjust accordingly.

Abstract: A double jointed hinge mechanism for pivotally coupling a door to a telecommunications chassis includes an first hinge arm configured to be non-rotatably attached to the chassis, a second hinge arm non-rotatably attached to the door, and a third hinge arm pivotally attached to the first and second hinge arms. The hinge mechanism is configured such that the door can be placed in a first open position and a second open position through rotation about first and second rotational axes. In the first open position, the door is in a generally horizontal position and below the first rotational axis. In the second open position, the door is in a generally vertical position and forward of a vertical plane defined by the first rotational axis.

Abstract: A method and device for reducing excessive door or hatch closing velocity. An actuator containing a force alignment channel causes piston movement within a hydraulic cylinder creating resistance to prevent door or hatch slamming. Closing of the car door is against the resistance of the hydraulic cylinder as hydraulic fluid moves through at least one channel to allow hydraulic fluid to move from a first side of the piston to a second side of a piston. The resistance of the hydraulic cylinder to an incremental movement in the car door varies during the closing of the car door. A force alignment channel within an actuator creates variation of the resistance of the hydraulic cylinder to the incremental movement in the car door by varying a rate of movement of the piston within the hydraulic cylinder per degree of closure of the car door.

Abstract: A door operator and a method for moving a door leaf between a closed and open position utilize a drive unit, a control unit, and a supervise unit. The drive unit is connected to and moves the door leaf between the open and closed position. The control unit is connected to and controls the movement of the drive unit. The supervise unit includes a status management unit and one or more sensors that provide sensor data associated with an operation of the door leaf. The status management unit receives the sensor data from the one or more sensors, determines a status pattern from a plurality of status patterns of the operation of the door leaf at least based on the sensor data, with a first status pattern being associated with a status event, and triggers the status event in response to the first status pattern.

Abstract: A drive device for a vehicle flap includes an electric motor (2) for driving the vehicle flap, and a supply switching circuit (3). The supply switching circuit (3) includes a first voltage source (9) for supplying current to the electric motor (2), a first electrical supply line (4) and a second electrical supply line (5). The first voltage source (9) is arranged between the first electrical supply line (4) and the second electrical supply line (5). The drive device also includes a control switching circuit (12) including a second voltage source (14) and a switching control device (13). The drive device includes a switching element (10) and a diode (11) connected between the first electrical supply line (4) and the second electrical supply line (5).

Abstract: A rotation transmission mechanism may include a plurality of rotation transmission members having a drive wheel and a driven wheel, and an urging member which urges the driven wheel in a reverse direction to a rotational direction by power of the drive source. The drive wheel and the driven wheel are provided with engagement parts structured to transmit turning of the drive wheel to the driven wheel, the drive wheel is provided with a cam face forming part on which the engagement part of the driven wheel is slid at a rotational position where the engagement parts are not engaged with each other, and a brake member structured to generate a rotation load is disposed in a range on an upstream side of a power transmission path including the drive wheel with respect to the driven wheel in the power transmission path transmitting the power of the drive source.

Abstract: A door assembly includes a first door skin, a second door skin spaced apart from the first door skin and a door operator disposed between the first door skin and the second door skin. An arm extends from the door operator. The door operator includes a motor moving the arm to move the door between a closed position and an open position and between the open position and the closed position. A current sensor generates a current signal corresponding to the current to the motor. A position sensor in communication with the door arm generates a position signal corresponding to the position of the door relative to the frame. A controller communicates with the sensor and the motor. The controller controls a motor current to the motor in response to the current signal and the position signal.

Abstract: A multifunction lock unit is disclosed. The unit is a single, contained unit that includes a base box near an overhead door and a deadbolt in the base box that protrudes into a hole in the overhead door to lock the overhead door. The deadbolt is extendable into the hole and retractable out of the hole. The unit also includes an actuator in the base box coupled to the deadbolt and configured to extend and retract the deadbolt. There is a wireless communication module that can receive a signal from a control unit to extend or retract the deadbolt via the actuator, and send a signal to the motor unit to raise or lower the overhead door. The unit also has a light on the base box for displaying at least two colors of light to show a status of the unit.

Abstract: A horizontally sliding window can block a draft, rainwater, dust, and noise from being introduced through a gap between a window casing and a window while the window is closed, thereby improving indoor heat insulating and soundproof functions of the window. A horizontally sliding window includes a square frame-shaped window casing having a transverse frame and a longitudinal frame assembled therein and a window disposed on an inner side of the window casing. Moving frames are respectively interposed between the transverse frame and an upper end portion of the window and between the transverse frame and a lower end portion of the window, each including first and second cover members extending from opposite sides thereof to cover indoor and outdoor sides of the transverse frame, respectively, and having a roller rotatably coupled between the first and second cover members so as to operate in contact with the transverse frame.

Abstract: A frame structure includes a frame body, a corner connector and roller mechanism arranged in a splice of adjacent side frames at a bottom of the frame body, and a guide mechanism clamped to a top of the frame body. A glass positioning slot is disposed on a first side of an inner side wall of a side frame of the frame body. A mounting slot is disposed on a first side of an outer side wall of the side frame of the frame body and used for fixing the guide mechanism or the corner connector and roller mechanism. The glass positioning slot is adjacent to the mounting slot along a lengthwise direction of the first side of the inner side wall. A sliding door is further provided.

Abstract: Embodiments described herein may be directed to the functional application and method of use of a jacking screw for adjusting a window frame. In accordance with the present disclosure, adjusting the jacking screw may cause a first portion of the window frame to be lifted or lowered with respect to a second portion of the window frame. In doing so, a desired alignment of a window installed in the window frame may be achieved. This process may eliminate the use of shimming the underlying surface, thereby making it easier to install the window frame on surfaces that are not perfectly level.

Abstract: A position sensing system and method for detecting the displacement of a door from a reference position, such as, for example, from a closed position. The system includes a magnetometer that may be operably connected to the door, and which measures positional location relative to a reference magnetic field, such as, for example, a magnetic field provided by a magnet of a lock device. The system may also include an accelerometer that detects acceleration of the door, and thereby provides an indication of when location is to be measured by the magnetometer. Measurement information from the magnetometer is used to derive a position indicator that is compared to a reference indicator, the reference indicator being associated with the reference position. Differences between the position and reference indicators may provide an indication that the door has been moved from the reference position.

Abstract: A safety guard for door gaps preferably includes a telescoping tube cover, a compression spring, a top bushing, a top hinge tube and a bottom pin bushing. The telescoping tube cover includes a first tube and a second tube. The compression spring is inserted into first tube and the second tube is inserted into the first tube. The top bushing is inserted into a top of the second tube. The second bottom bushing is inserted into a bottom of the first tube. A second embodiment of the safety guard includes the telescoping tube cover, the top bushing, the top hinge tube, the bottom pin bushing and a fastener. A third embodiment of the door safety guard preferably includes a safety tube, a top pin bushing, the bottom pin bushing and an extra length hinge pin.

Abstract: A pivotable handle for an architectural covering is provided. The handle (400) includes first and second members (408,410) pivotably connected together at a hinge assembly (460). The first member (408) may be operable to connect the handle (400) to a movable rail (512). The second member (410) pivots between stored and use positions. In a stored position, the second member (410) may extend adjacent the first member (408). In a use position, the second member (410) may be pivoted away from the first member (408) to extend the movable rail (512) across an architectural structure. The handle includes a biasing member (470) operable to bias the second member (410) towards the first member (408).

Abstract: A winch utility includes a shelf connected to a main body, the main body comprising a shell, the shell defining a cable port; an electric motor mounted to the shell; a controller attached to an inner part of the shell and in electronic communication with the electric motor; a bobbin coupled to the electric motor; and a cable coupled to the bobbin at a bobbin end, the cable defining a terminal end distal to the bobbin end, the cable arranged to be coiled around the bobbin by rotation of the electric motor, wherein at least a portion of the cable is arranged within the cable port and wherein the terminal end of the cable is arranged outside of the shell, wherein the controller instructs the electric motor, and wherein motion of the electric motor causes the cable to become one of: coiled around the bobbin and uncoiled from the bobbin.

Abstract: The present invention relates to a combined crushing super-variable-diameter drill bit for natural gas hydrate exploitation, including a joint, an outer cylinder connected to the joint by thread, a nozzle I mounted in the outer cylinder, a mechanical locking mechanism, a blade telescoping mechanism, an end cap connected to the outer cylinder by thread, a seal ring IV mounted to the end cap, and a nozzle II mounted in the end cap by threaded connection. The present invention achieves integrated operation of conventional drilling and draw-back expanding, which can effectively solve the problems that the existing hydrate drill bit cannot drill a large borehole, cannot mechanically lock an extending position of the blade to stabilize the size of the borehole, and a single crushing method is inefficient.

Abstract: A cutting element has an intercrystalline-bonded diamond body that includes an inner region and an outer surface that includes a working surface of the cutting element. The outer surface is treated, after formation of the intercrystalline-bonded diamond by high-pressure/high-temperature process, to have a level of surface compressive stress that is greater than a compressive stress of the inner region.

Abstract: A magnetic depth of cut controller (DOCC) includes a housing having a body portion with a bore extending into the body portion and a depth of cut (DOC) element positioned at least partially within the bore and having a working face to engage a subterranean formation. The DOC element is moveable within the bore to extend or retract from a first end of the housing. Further, the DOCC includes a magnet secured within the bore of the housing between the DOC element and a second end of the housing. Moreover, the DOCC includes a magnetic fluid disposed within the bore of the housing between the DOC element and the second end of the housing. The magnetic fluid has a viscosity that changes responsive to proximity to the magnet to provide a variable resistance to movement of the DOC element.

Abstract: A metal sucker rod has a first end and a second end spaced apart from the first end. At least one end piece with a recess is configured to receive one of the first end and the second end of the metal sucker rod. The metal sucker rod includes an adhesive applied to at least one of a) the first end and the second end of the steel rod and b) in the recess of the at least one end piece. The adhesive is configured to secure the end piece to one of the first end and the second end.

Abstract: A well fracturing system is provided. The well fracturing system includes an adjustable well fracturing manifold coupled to a plurality of well fracturing trees. The adjustable well fracturing manifold has fracturing fluid control units to control fluid flow, and fracturing fluid conduits that enable adjustments to the position of the adjustable well fracturing manifold. Further, the fracturing fluid conduit is composed of offset pipe sections coupled by connectors. The offset pipe sections are adjustable, allowing the offset pipe sections of the fracturing fluid conduit to vary a dimension of the fracturing fluid conduit to facilitate coupling of the adjustable well fracturing manifold between the well fracturing trees. Additional mechanisms, systems, and methods are also included.

Abstract: A drill string readout port connector assembly including a receptacle body and a connector body. The receptacle body is located in an aperture in a sidewall of a drill collar and a mounting surface of the receptacle body includes a mounting surface ring-shaped electrically conductive structure. The connector body has an insertion end shaped to fit inside the aperture and to face the mounting surface and a landing surface of the insertion end includes a corresponding a landing surface ring-shaped electrically conductive structure positioned to align with and physically contact the mounting surface ring-shaped electrically conductive structure.

Abstract: An internally threaded bit for percussion drilling is provided, which has thread roots wider than the thread crests. A single drill bit, configured according to the present invention, can be connected to a variety of rods, having differing crest widths in their male threads. The invention enables the service life of the rods to be optimized to suit the drilling conditions at hand, without the need to manufacture and keep in inventory a correspondingly large variety of drill bits. The bit of the invention exhibits a reduced rate of ringing off, and can accept drill rods having a range of crest widths.

Abstract: A flexible tubular structure for oil exploitation, said flexible tubular structure having at least one reinforcing layer and at least one layer of a fluoropolymer compound, wherein said fluoropolymer compound has a composition including a polyvinylidene fluoride homopolymer and a vinylidene fluoride/fluorinated comonomer copolymer, and a plasticizer. The proportion by weight of hexafluoropropylene monomer in the copolymer is greater than 25%.

Abstract: A top connection arrangement for a subsea riser comprises a pivot or joint combination disposed between, and fluidly connecting, upper and lower sections of rigid pipe. The pivot combination comprises an upper ball joint about which the upper pipe section is pivotable. A lower joint, being a flexible joint or a tapered stress joint to which the lower pipe section is attached, is fixed to the ball joint in series. A sleeve is fixed to the ball joint and surrounds the upper pipe section to permit limited pivotal movement of that pipe section about the ball joint. The sleeve may seat into the bellmouth of an I- or J-tube of a surface facility or may be omitted if the lower joint is seated in a hang-off formation. A locking mechanism is capable of locking the ball joint and hence preventing pivotal movement of the upper pipe section.

Abstract: A Ground drilling device having a drilling carriage and a sled movable back and forth on the drilling carriage, wherein at least one gear is present for the drive of the sled, whose rotary movement is transformed into a linear movement by means of a rack, wherein a force relieving pathway is provided to relieve the gear of a radially introduced force.

Abstract: Methods for drilling a wellbore into a subterranean formation include preparing a drilling fluid and circulating the drilling fluid in the wellbore while drilling in the subterranean formation, forming a filtercake from the drilling fluid, creating or encountering one or more fractures in the subterranean formation while drilling, and allowing a portion of the filtercake formed to at least partially seal the one or more fractures while continuing the drilling.

Abstract: For a wellbore drilled in a low or subnormal pressure reservoirs, a static loss rate of drilling fluid is monitored within a limit of a drilling rate. In reaching the limit, the annulus is closed off to returns using a rotating control device, or the annulus may remain open to the atmosphere at surface. Operations may not be able to keep the annulus filled with a mud cap so pressurized mud cap drilling cannot be sustained. Instead, an initial fluid level of the mud cap is defined in the annulus. Drilling the wellbore with the mud cap then involves: pumping a sacrificial fluid through the drillstring without returns to surface through the annulus, and monitoring the initial fluid level in the annulus to detect a change. Monitoring uses downhole instrumentation to measure pressure, temperature, and gas level of the mud cap. In response to the detected change, the drilling can be further controlled, including stopping the drilling, turning off pumps, and possibly bullheading the well.

Abstract: A system, method, and apparatus can identify groundwater as a drilling machine drills a drill hole. Presence or not of groundwater can be continuously monitored as the drilling machine drills the drill hole using one or more groundwater or moisture sensors to detect moisture or water content of cuttings from the drill hole. Such data from the sensor(s) can be processed to determine the presence or not of groundwater and associate the determination with the corresponding location within the drill hole. A mapping or logging of the drill hole can be generated with the location or locations where the presence of groundwater is identified.

Abstract: A hermetically sealed horizontal washing decanter centrifuge for enhanced drilling fluid recovery and drilled solids washing. A process and apparatus for liquid phase-solid phase separation of oil based drilling mud-containing drill cuttings is described including flowing the drilling mud-containing drill cuttings into a horizontal washing decanter wherein the stresses imposed within the decanter act as a wash as the diluent and oil based drilling mud move away from the drill cuttings. Diluent is added prior to flowing the drilling mud containing drill cutting to the hermetically sealed horizontal washing decanter centrifuge. The entire process is performed in a gas-tight environment preventing escape of diluent from the process into the external atmosphere and preventing introduction of gases into the process from the external atmosphere.

Abstract: Embodiments of a debris catcher and a debris catching system are disclosed herein. In one embodiment, a debris catching system comprises a plug and a debris catcher, the debris catcher including at least a debris catching sleeve, a running tool coupled to the debris catching sleeve, the running tool including an uphole end and a downhole end, and further wherein the uphole end of the running tool is configured to slide to engage a downhole end of the debris catching sleeve and form a collection base of the debris catcher; and a coupling rod attached to the uphole end of the running tool, the coupling rod configured to engage a downhole setting device; wherein the plug is removably coupled with the downhole end of the running tool during downhole deployment of the debris catching system.

Abstract: A system and method for conveying a tool to a target sub within a tubular string having a number of subs. Each sub may include at least one ledge or shoulder in or on its interior surface that can be used as a latch stopper or stopper, for receiving and engagement with a latch. The subs may also have a latch deflector or deflector. In one embodiment, the latch deflector is a latch-deflection shoulder protruding into the internal diameter (ID) of the string for deflecting a latch, to be subsequently introduced, out of or into the latch-stopping shoulder. The distance between the latch stopper and the latch deflector, referred to as the “deflection radius,” may be used as an address that uniquely identifies each sub, and can vary from sub to sub.

Abstract: Systems and methods for coupling subsea tubular members together are provided. An apparatus may be used to properly orient and/or provide communication between a first subsea tubular member that is being landed on a second subsea tubular member. An apparatus for coupling subsea tubular members may include an alignment sub and a corresponding alignment member. The alignment sub includes: a generally cylindrical body having one or more fluid, electric, or fiber optic lines extending therethrough, one or more couplings coupled to at least one end of the alignment sub, and an orientation profile disposed on a surface of the alignment sub. The alignment member has a profile designed to interface with the orientation profile of the alignment sub. One of the alignment sub and the alignment member remains stationary while the other rotates relative to the stationary structure.

Abstract: The present invention provides a thermally deformable annular packer with pressure relief means for use in oil and gas wells. The annular packer is formed from a stack of component parts, said parts comprising one or more eutectic alloy based ring sections sandwiched between two end sections. At least one of the annular packer component parts has one or more enclosed voids that are configured to become exposed when the packer is subjected to a predetermined pressure or temperature. The exposure of the enclosed voids serves to increase the effective volume within the sealed region formed by the annular packer in the annulus between two coaxial well casing/tubing. The increase in the effective volume serves to reduce the pressure within the sealed region thus preventing a build-up of pressure that might otherwise have damaged the well casing/tubing.

Abstract: A flow distribution may be monitored to one or more clusters of perforations. Plugging criteria may be identified based on the flow distribution and characteristics associated with perforation plugs to be dropped into a wellbore associated with the subsurface formation may be determined based on the flow distribution, characteristics of the one or more clusters, and the plugging objective. The perforation plugs may be dropped into the wellbore. The perforation plugs may have tracers which indicate whether the perforation plugs reached a location associated with the one or more clusters.

Abstract: A tubular sleeve is made of a degradable material and may be disposed within a downhole component or may be disposed around an outer surface of the downhole component. The tubular sleeve is positioned relative the downhole component such that fluid flow is prevented from passing through at least one aperture in the downhole component. The tubular sleeve is secured to the downhole component by swedging, mechanical fasteners, or adhesives. In the swedging process, the tubular sleeve is mechanically deformed by applying a force to the sleeve, which stretches and then recoils back an amount once the force is removed. Once installed, the tubular sleeve will eventually degrade, allowing fluid to flow through the at least one aperture in the downhole component.

Abstract: A screen and valve system includes a first screen portion including an inner surface and an outer surface. The inner surface defines a first conduit section. A second screen portion includes an inner surface portion and an outer surface portion. The inner surface portion defines a second conduit section. The second screen portion is mechanically joined with the first screen portion such that the first conduit section and the second conduit section form a flow path. A valve member is arranged in the flow path. The valve member includes a a first end segment, a second end segment and an inner surface defining a conduit. First end segment is arranged in the first conduit section without a mechanical connection and the second end segment is arranged in the second conduit section without a mechanical connection. A valve element is slideably arranged in the conduit.

Abstract: A buoyancy assist tool has an outer case with a rupture disk assembly connected therein. The buoyancy assist tool defines the upper end of a buoyancy chamber in a well casing. A sleeve in the outer case traps the rupture disk membrane after it has ruptured to provide full bore flow through the casing.

Abstract: Methods and apparatus for utilizing a valve with a pump rotor passage with a downhole production string, the pump rotor being on a rotatable rod with a bobbin moving along the rod between a position for opening the passage to fluid flow, when the bobbin is not seated on a shuttle seat, and a position for closing the passage to fluid flow, when the bobbin is seated on the shuttle seat. The pump rotor and rod are removable through the passage while leaving the pump stator in place upstream of the valve.

Abstract: A plug with a resettable closure member including a body defining a flow bore and a closure member seat, a closure assembly connected to the body, the assembly includes a closure member and a magnetic catch disposed to hold the closure member in an open position, the magnetic catch being configured to release the closure member upon a selected hydrodynamic load upon the closure member.

Abstract: A lateral wellbore access system is used for moving an isolation sleeve relative to a window of a completion sleeve to adjust access through the window. The system includes an actuator having an isolation sleeve coupling mechanism and a driving mechanism. The isolation sleeve coupling mechanism is configured to engage with an isolation sleeve. The driving mechanism is configured to longitudinally reciprocate the isolation sleeve coupling mechanism within a bore of a completion sleeve to longitudinally move an isolation sleeve coupled to the isolation sleeve coupling mechanism within the bore relative to a window of the completion sleeve. Movement of the isolation sleeve adjusts a position of the isolation sleeve relative to the completion sleeve window for permitting or blocking access through the window into the bore.

Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).

Abstract: An apparatus and method for connecting a shaped charge retainer to a shaped charge and connecting that to a charged tube in a perforating gun for use downhole.

Abstract: An oil field pump installed within a pipe that connects to an oil field, feeds accumulated extraction oil in a predetermined direction and includes a rotor, a stator mounted on the outer circumference of the rotor, a flow path for flow of the extraction oil connecting an area formed within the rotor to an area formed between the rotor and the stator, a thrust bearing that supports the axial weight of the rotor and the stator, and a supply pipe that supplies a portion of the extraction oil in the flow path to the thrust bearing. The thrust bearing includes a protrusion part fixed to the outer circumference of the rotor and rotating as one piece with the rotor, and a facing part fixed to the stator and facing opposite a surface in the axial direction of the protrusion.

Abstract: A method and system generate steam for SAGD operation wherein steam generator blowdown water is acidified, cooled and clarified before reuse. Acid Clarification Treatment, or “ACT”, mitigates organic fouling in Once-Through Stream Generators. Lab tests quantitatively and qualitatively show that ACT reduces Total organic carbon (TOC) and ‘bad actors’ TOC, respectively, in blowdown streams.

Abstract: Systems and methods for neutralizing a hydrogen sulfide within a subterranean well include a hydrogen sulfide neutralizing tool having a tubular member. A tool shell circumscribes the tubular member, defining tool annular space between an outer diameter surface of the tubular member and an inner diameter surface of the tool shell. A sacrificial rod is located within the tool annular space and is formed of a material that produces metal sulfide when exposed to the hydrogen sulfide. An uphole perforation has an opening extending through a sidewall of the tubular member, defining a fluid flow path between the tool annular space and the internal bore of the tubular member. A downhole perforation is located downhole of the uphole perforation and hays an opening extending through the sidewall of the tubular member, defining a fluid flow path between the tool annular space and the internal bore of the tubular member.