Abstract: An apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops, comprising a plurality of identical apparatus wherein each apparatus is positioned at different longitudinal level to restrain the service loops. Each apparatus is comprised of a plurality of interlocking units, wherein each unit is comprised of a central steel ring which is adhesively bonded to a braid of a service loop penetrating therethrough and exteriorly affixed to first and second interconnecting rings. A first flexible cable and second flexible cable connect the respective first and second interconnecting rings of the units of each apparatus. Therefore, the service loops are flexibly restrained to have a uniform path and bend radius when they travel longitudinally during operation of an oil well drilling machine, which results in reduction of damage of the service loops.

Abstract: A direct drive drawworks has a permanent magnet motor, a shaft extending from the permanent magnet motor so that the permanent magnet motor directly rotates the shaft, and a drum connected to the shaft away from the permanent magnet motor such that the rotation of the shaft causes a corresponding rotation of the drum. The permanent magnet motor has a housing, a stator positioned in the housing, and a rotor cooperative with the stator. The rotor has a drive plate affixed thereto. The shaft is directly connected to the drive plate. A bearing housing rotatably supports the shaft.

Abstract: A containment and protection system for wells in the oil and gas industry may solve the problem of crude oil, salt water and chemicals from absorbing into the ground and contaminating the ground, water and animals. The system may provide safety for landowners, workers and livestock. The system may attach around a wellhead and flowline. The system may be dug into the ground so that it is below the surface casing and then sealed and secured thereto. A lid of the system may close overtop of the well to make it secure and leak proof. The lid may also be insulated to hold in warmth, thereby reducing the need to insulate the wellhead. The system may provide safeguards that may shut down the pump driver or close valves to stop flow from the well and flowline under certain conditions.

Abstract: An apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops, including a plurality of identical apparatus wherein each apparatus is positioned at different longitudinal level to restrain the service loops. The apparatus contains multiple improved interlocking units having a shape of the sleeve. Each unit includes first and second members and intra-unit affixing members in addition to an adhesive to affix the members and service loop together. Each member is an insert steel enhanced rubber structure. A transverse interconnecting ring is connected to the inner insert steel through which service loops are retained together by a cable.

Abstract: Apparatus, assembly and process for allowing gas lift operations to be conducted along a relatively long perforated interval below a packer in a generally vertical or a deviated subterranean well. An elongated segregation member may be lowered into locking engagement with a bypass mandrel secured to a tubing string above the packer. This segregation member may be configured and dimensioned to define two fluid flow paths. A first flow path extends from the surface of the earth through the annulus formed between the tubing string above the packer and casing secured in the well, the bypass mandrel, a bore through a portion of the segregation member and the interior of the tubing string below the packer. A second flow path extends from the subterranean region penetrated by the well through the annulus formed between the tubing string below the packer and casing secured in the well, the annulus between the segregation member and the packer, and the interior of the tubing string above the packer.

Abstract: A wellhead is provided. In one embodiment, the wellhead includes a plug for sealing a side passage of the wellhead. The plug may include an outer member, an inner member extending through the outer member and coupled to the outer member with at least one degree of freedom of movement relative to the outer member, and a moveable seal disposed around the outer member. In some embodiments, the moveable seal is configured to seal against the side passage in response to being moved on the outer member by the inner member.

Abstract: Disclosed apparatus and methods permit well-site operators to retrofit existing wells in order to comply with local regulations that restrict the escape of annular natural gas from hydrocarbon wells. Such allows sealing around an exterior of surface and concentric production casings, both above and below the point of their intersection, then assembling a pressure vessel around that point and between those seals so as to capture and hold gas rising up an intercasing annulus, for periodic controlled venting.

Abstract: A system for running a string of casing into a well utilizes a casing gripping assembly. The casing gripping assembly connects to a top drive and has radially movable gripping elements. A pair of links have upper ends pivotally connected to the casing gripping assembly. A casing elevator is mounted below the casing gripping assembly to lower ends of the links. A guide is mounted to the links between the elevator and the casing gripping assembly. The guide has a vertically extending central opening that has a lower portion that defines a flared entrance to the opening.

Abstract: In accordance with an exemplary embodiment, a tubing hanger having an angled auxiliary bore is provided. The auxiliary bore may receive a penetrator for a cabling system that powers a submersible pump. The auxiliary bore is angled with respect to the production bore of the tubing hanger. As a result, the penetrator exits the lower end of the tubing hanger at a location relatively close to the production tubing. This facilitates the use of a smaller-diameter production casing or casing hanger, in turn helping to reduce potential costs, for instance.

Abstract: A wellhead completion assembly has a head connected to surface casing. A rotatable flange or the like can be used to connect various components to a threaded end of the head. A casing hanger installs in the head, and the hanger's upper end extends beyond the head's top edge. This exposed end has an external threaded connection to connect to various wellhead components using a rotatable flange or the like. For example, a locking ring can threadably connect to the head's threaded end to support the hanger in the head. Then, a rotatable flange can threadably connect to the hanger's exposed end so that another component, such as a completion spool or gate valve, can nippled up directly to the hanger. When the hanger is fluted, a pack-off assembly can allow testing off inner and outer sealing integrity via a test port accessible through an opening in the locking ring.

Abstract: An apparatus (12) for manoeuvring a downhole object (22) comprises a casing (28) and a carriage (34) slidably mounted within the casing (28), wherein the carriage (34) defines a cylinder bore (62) extending at least partially into a side wall thereof. An engaging member (64) comprising a piston body (66) is slidably mounted within the cylinder bore (62) of the carriage (34) and is arranged to divide the bore (62) into first and second piston chambers (68, 70). The engaging member (64) is arranged to extend through the wall portion of the carriage (34) between extended and retracted positions to selectively engage an object (22) to be manoeuvred. In one disclosed embodiment, the apparatus (12) is for use in displacing a tool (22) for setting or retrieving a plug (26) in or from a Christmas tree (132).

Abstract: A device for remotely actuating the safety lock of individual oil pumping apparatuses, (also known as AIB) employed in oil wells for extraction of this fluid. The actuating device or locking device permits an AIB operator to remotely actuate a safety lock for locking the entire movement of the AIB, without the need for the operator to go into an area of the AIB where the safety lock is usually housed. For this purpose the locking device includes an actuator for moving upwardly and downwardly the safety lock. The locking device also includes an indicator for indicating the position of the safety lock.

Abstract: Disclosed is an apparatus comprising a hydraulic cylinder assembly, a load connected to the cylinder, a reversible hydraulic pump assembly, a pressurized supply of hydraulic fluid, first and second conduits for hydraulic fluid, and a control system. The hydraulic cylinder assembly comprises a cylinder sealed by an upper head and a lower head and carrying a piston which divides the hydraulic cylinder assembly into an upper chamber and a lower chamber. The load is connected to the piston and urges it toward the lower head. The first conduit for hydraulic fluid connects the reversible hydraulic pump assembly in fluid flow communication with the lower chamber of the hydraulic cylinder assembly. The second conduit for hydraulic fluid connects the reversible hydraulic pump assembly in fluid flow communication with the pressurized supply of hydraulic fluid.

Abstract: Installation for enhanced oil recovery comprising in succession: a polymer storage hopper, a grinding device and a pressurized injection pump. The grinding device has a chamber for grinding and draining the dispersed polymer comprising a rotor and a stator, and on all or part of the periphery of the chamber, a ring fed by a secondary water circuit. The ring communicates with the chamber for spraying of pressurised water on the blades of the stator. A method implementing the installation is also provided.

Abstract: A drill rig includes a carrier platform and a drilling unit. The drilling unit includes a support frame mounted on the carrier platform, a slider frame mounted upon and surrounding the support frame, a drilling support mechanism mounted on the slider frame, a drill portion rotatable relative to drilling support mechanism, and a means for effecting rotation of the drill portion. The support frame assumes a substantially vertical position, and the slider frame is moved along the support frame to an operative position for effecting a drilling operation. The support frame comprises two main tower beams partially covered in High-Density Polyethylene plastic, and the slider frame comprises plates positioned on the top and bottom of the tower beams, with inside and outside joiner plates encasing the sides of the support frame. These plates being covered with HDPE plastic on the surface which contacts the support frame to substantially reduce vibration.

Abstract: An embodiment is an apparatus for generating a driver gas, for recovering fluid from the Earth's subsurface. The apparatus includes a fuel reformer, adapted to react a fuel with water to produce carbon dioxide gas and hydrogen gas; a compressor, adapted to compress a portion of the carbon dioxide gas and a portion of the hydrogen gas; a gas injection unit, adapted to inject the portion of the carbon dioxide gas and the portion of the hydrogen gas compressed by the compressor, into a subsurface reservoir; a gas capture unit, adapted to capture a portion of the carbon dioxide gas and the hydrogen gas, that emerges from the subsurface reservoir; and a control module capable of using subsurface data to regulate operation of the gas injection unit. The apparatus may also include a power generator adapted to utilize a portion of the hydrogen gas to generate power, hence producing electricity without greenhouse gas emissions.

Abstract: A system is provided that include a safety device configured to mount in a mineral extraction system and block axial movement of a plug in the mineral extraction system while the plug is released from a retainer. In one embodiment, the safety device may be a sleeve configured to receive screws or other retention mechanism in a tubular. A method is provided that includes installing a plug safety catch into a tubular of a mineral extraction system in which the plug is configured to block axial movement of a plug in response to a pressure differential while the plug is released from a mount position.

Abstract: A method and a device (2) for destruction of organic material in injection water for an injection well (4), in which a means (10) for introduction of water in the injection well (4), and at least one electrochemical cell (16) with associated operating means are used for in situ electrolytic generation from water of at least short-lived, free hydroxyl radicals. The distinctive characteristic of the invention is that it comprises the following steps: (A) to connect the at least one electrochemical cell (16) to the injection well (4); and (B) by means of said operating means, to conduct the injection water through said cell (16) for in situ generation of at least free hydroxyl radicals from the injection water, insofar as free hydroxyl radicals immediately destruct organic material that they engage in the injection water.

Abstract: Following the treatment of formations surrounding an oil, gas or water well, various diameter ceramic balls are retrieved from the downhole equipment by creating a suction force at the earth's surface to cause such balls to be moved into a ball catcher at the earth's surface from which the balls can be collected. The suction force is created by a high pressure fluid intersecting a fluid path between the downhole equipment and the ball catcher. The high pressure fluid is preferably operated at, at least 1,000 psi, and even more preferably, between 5,000 and 10,000 psi.

Abstract: An isolation sleeve and plug assembly that may be used to protect a wellhead assembly from being damaged by high-pressure wellbore fracturing operations. Both the isolation sleeve and plug may be installed by the same running tool, and may be installed by lowering the running tool through an isolation valve on the wellbore.

Abstract: A system for operating downhole equipment in a well includes a drive shaft extending from a surface of the well to a downhole location. A motor is positioned at the surface and is operably connected to the drive shaft to selectively rotate the drive shaft. A lift system is positioned at the surface and is operably connected to the drive shaft to axially lift and lower the drive shaft.

Abstract: A seal assembly, for sealing between a stationary conduit and a rotating conduit, comprises an upper gland assembly, a washpipe, and a lower gland assembly. The upper gland assembly is operable to engage the stationary conduit. A washpipe partially disposed within the upper gland assembly. An upper seal member is disposed within the upper gland assembly around a periphery of the washpipe. An upper packing ring is engaged with the upper gland assembly so as to compress the upper seal member into sealing engagement with the washpipe. A lower gland assembly is disposed about the washpipe and operable to engage the rotating conduit. A lower seal member is disposed within the lower gland assembly and is compressed into sealing engagement with the washpipe by a lower packing ring that is engaged with the lower gland assembly. The engagement of the packing rings with their respective gland assemblies is independent of the engagement of the gland assemblies and the conduits.

Abstract: A drive assembly for powering a rotating rod string (14) passing through a surface wellhead (18) includes a torque conveying housing (32) containing a radially outer member supporting a plurality of outer member magnets and rotated by a motor. A radially inner member (48) supports a plurality of inner member magnets and is rotatable within the outer member, with magnetic forces between the plurality of outer member magnets and the plurality of inner member magnets rotating the inner member magnets and thus the radially inner member.

Abstract: A hanger system is provided for supporting a cable-supported dewatering pump in a gas well. A dewatering pump is supported in a downhole location by a cable. A cable hanger bears the weight of the cable and the weight of the dewatering pump. A pulling tool is configured to detachably connect to the cable hanger and to support the weight of the cable hanger, cable and gas well dewatering system as it is pulled out of a seated position in the well.

Abstract: A downhole tubular connector comprising a first body portion and a seal provided on the first body portion, the seal being adapted to selectively provide a seal with a downhole tubular, the downhole tubular connector further comprises a seal protector, wherein one of the seal protector and seal is movable with respect to the other of the seal protector and seal, the seal protector or seal being movable from a first position, in which at least a portion of the seal is protected by a first end of the seal protector, to a second position, in which the portion of the seal is exposed. The seal protector may be disposed so as to be movable from the first position to the second position by contact of the sleeve with the downhole tubular as the downhole tubular connector is brought into engagement with the downhole tubular.

Abstract: The invention relates to washpipes for use in drilling operations such as drilling for oil and gas, and more particularly to an auto lubricating washpipe and liner system and method.

Abstract: A Christmas tree is used between production tubing elevation and flow line elevation. The tree has a lower portion, an intermediate portion, and an upper portion. The intermediate portion is positioned between the production tubing elevation and the flow line elevation and has an axial dimension configured to substantially maintain the axial dimension between the elevations. The intermediate portion has first and second shut-off valves for closing fluid communication of the axial bore. A hanger is positioned in the axial bore of the intermediate portion between the first and second shut-off valves. The hanger defines a bore and a port. The port communicates a side of the hanger with the lower end of the hanger. The coil tubing attaches to the port at the lower end of the hanger, and the port at the side of the hanger communicates with the feed line of the intermediate portion.

Abstract: A method of modifying a modular well servicing combination unit comprising the steps of keeping a well servicing module in inventory and removably mounting said well servicing module onto said modular well servicing combination unit.

Abstract: An efficient truck-mounted injection system for injecting a combined aqueous or hydrocarbon-based liquid stream and a liquid carbon dioxide stream via a well into a subterranean formation.

Abstract: Embodiments of the inventive technology may provide a leaked fluid detection and response system in one aspect, and in another aspect, an environmental enclosure for at least a component of such leaked fluid detection system. Various embodiments of the leaked fluid detection and response system may provide wireless communication of detected leaks and a PLC that automates response and provides information regarding the presence of a leak. Enclosures may, in various embodiments, comprehensively surround enclosed components, thermally insulate enclosed components, include a leaked fluid capture basin, be aerodynamically streamlined, and/or be vermin-tight.

Abstract: A polish rod clamping device, for use as part of a wellhead production pumping tree to secure a polish rod. The device includes a pressure-containing body forming a central vertical and opposed first and second side bores. A pair of clamping rams are positioned in the side bores for sliding movement therealong, each clamping ram having a front and a rear end, the front ends of the clamping rams being configured to accommodate at least a portion of the polish rod between their front ends when the clamping rams are advanced across the central bore. The front end of at least one of the clamping rams is configured with a vertical V-groove for gripping the polish rod. The invention extends to the V-groove rams themselves and to composite wellhead assemblies containing the V-groove clamping device.

Abstract: A cable is installed in coiled tubing for use in. downhole wells; the cable having an expandable jacket (22) extruded around it. After being installed in the coiled tubing, and the expandable jacket is caused to expand, securing the cable in the coiled tubing. The expandable jacket is caused to expand by the application of heat or by the application of a liquid hydrocarbon. The expandable jacket may be discontinuous along the length of the power cable, discontinuous portions being provided by interspersing the expandable jacket with sections non-expandable material.

Abstract: An apparatus is provided that can be attached to a well to obtain samples of produced liquids. A vessel has an upper port, a lower port and a side port. Produced fluids enter the vessel through the side port. Natural gas associated with the produced fluids exits the vessel through the upper port, and is directed into a vapor recovery or other similar gas handling system and is not permitted to escape into the surrounding environment. Samples of produced liquids (and any accompanying solids) are obtained from the vessel through the lower port.

Abstract: The present invention removes contaminants from well water without creating the problem of large volumes of waste liquid disposal. It uses double-cone devices as pressure amplifiers which due to their lack of moving parts avoid the risk of additional contamination of the well and provide a prolonged lifetime. For toxic contaminants, a periodic purging of the concentrated contaminants is required. In the case of (sea) salt contamination, there is no waste brine to be continuously handled at all and the system may be run without interruption over an extended period. In this case, the brine is dumped into the well simply by periodically stopping the plant. The brine pours out of the double-cone unit(s) and due to its higher density, sinks down in the well without disturbing the operation of the purification plant.

Abstract: Apparatus, methods, and systems for extracting oil or natural gas from a well using a portable coal reformer. In one example, the method may include reforming coal by reaction with water to generate driver gas (comprising carbon dioxide and hydrogen gas), and injecting the driver gas into the well. The driver gas reduces the viscosity and pressurizes the oil to help extract the oil from the oil well. The coal reforming operation may include combusting coal or other combustible material with ambient oxygen to release energy, and heating coal and water with the energy released to a temperature above that required for the coal reforming reaction to proceed, thereby reforming coal and water into driver gas. The driver gas may be purified by filtering out particles and sulfur before injecting into the well. A portion of the hydrogen gas may be separated from the driver gas and used to generate electrical power.

Abstract: A diverter for containing and reducing the velocity of the particulate discharge from a well bore being subjected to the process of “cavitation.” The diverter has a generally conical hollow containment shell and an internal diverter assembly with replaceable wear parts wherein the flow is directed into a spiral path along the inner surface of the containment shell. The path of flow is such that the flow velocity is dissipated without impeding or obstructing the flow of particulates. Water can be injected into the flow to help prevent fine particulates from becoming airborne.

Abstract: A well cellar system includes a substantially planar base, the base defining an aperture sized to receive a conductor pipe. The well cellar system also includes at least one substantially inflexible side member attached to the base, the at least one side member and the base defining a cavity. A seal between the at least one side member and the base substantially prevents the flow of fluids between the at least one side member and the base. The attachment between the base and the conductor pipe substantially prevents the flow of fluids between the base and the conductor. The well cellar system of the present invention substantially eliminates contamination of soil and water sources adjacent the well site during its operation.

Abstract: Well head hydrocyclone separators are typically used for separating particulates from fluids such as gas, oil and water and mixtures thereof. Well head separators are useful to prevent wear and blocking of choke valves, rupture of piping, damage to instruments and to prevent vessels from filling with particulate materials. In the present invention, the cyclone separator assembly includes an inlet, an overflow outlet and a segmented cyclone separator tube.

Abstract: A combined system for treating an oil or gas well is provided which includes a truck, having a truck bed attached thereto and a fracturing support unit and an iron skid mounted on the truck bed. The fracturing support unit includes well head control equipment, and the iron skid includes a manifold having an arrangement of valves for controlling the flow of fluid to the well. The iron skid may be advantageously articulated off the truck bed and onto the ground for unloading the iron components used to treat the well.

Abstract: A system and method to inject a combined hydrocarbon-based liquid stream and a liquid carbon dioxide stream into a subterranean formation via a well using a single high-pressure pump.

Abstract: A methane gas wellhead, having: a body having a pair of side outlets and a top outlet; a mandrel dimensioned to be received into the top outlet; and a cover plate dimensioned to be received over the mandrel, and to hold the mandrel in the top outlet when the cover plate is secured to the top of the body; or a body having a pair of side outlets and a top outlet; and a mandrel dimensioned to be received into the top outlet, wherein the mandrel is a negative pressure mandrel, and wherein the top outlet and the mandrel are dimensioned to receive an O-ring seal therebetween.

Abstract: Provided herein are methods and apparatus for removing oil or natural gas from the ground. In one example, the method may include reforming a fuel source by reaction with water to generate driver gas, and injecting the driver gas into the oil well. The reforming operation may include causing the combustion of a combustible material with ambient oxygen for the release of energy; and heating a reforming reaction fuel and water sources, with the energy released from the combustion of the combustible material, to a temperature above that required for the reforming reaction wherein the fuel and water sources are reformed into driver gas. In one example, the amount of the combustible material combusted is sufficient to result in the release of enough energy to heat an amount of the reforming reaction fuel and water sources to the temperature above that required for the reforming reaction to proceed. The driver gas may be used to help extract oil from the ground and especially oil from depleted oil wells.

Abstract: A wellhead system is provided. In one embodiment, the wellhead system includes a bypass sleeve for temporarily isolating portions of a wellhead assembly from pressurized fracing fluid. The bypass sleeve may include a generally tubular body having a tool interface, a lock ring disposed at least partially around the body, and an anti-rotation device coupled to the body. In some embodiments, the anti-rotation device includes a resilient member disposed in a cavity in the body, and an anti-rotation member biased away from the body by the resilient member. The anti-rotation member of some embodiments extends radially outward from the body.

Abstract: A method of servicing a wellbore comprising transporting at least two portable tanks to a well site to be serviced, and hydraulically injecting biocide into a first of the two tanks, wherein a second of the two tanks serves as a fluid source for conveying the biocide into the first tank.

Abstract: A hydraulic overshot apparatus designed to slide over plain end tubing and set by applying hydraulic fluid, under pressure, via a hydraulic setting port, into a center chamber which allows pressure to direct to two different piston areas. The setting piston compresses packer elements and tubing slips against the outer diameter (O.D.) of the tubing. The test piston compresses tubing test elements against the inner diameter (I.D.) of the tubing. The setting pressure is ported through the upper setting and test portion o allow pressure to move from the center chamber to the lower outer portion. The lower outer portion includes a body lock ring and a setting piston for setting the packer elements. Setting pressure moves the setting piston down through the body lock ring. As the setting piston moves down, it ratchets down through the body lock ring.

Abstract: An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the internal bores of the first and second devices, wherein the fracture isolation sleeve has an internal diameter that is greater than or equal to an internal diameter of the production casing.

Abstract: The invention relates to a rig assembly for use in the oil and gas exploration and production industry. In an embodiment of the invention, a rig assembly (12) for a drill ship (10) is disclosed. The rig assembly (12) comprises a rig floor receiving area (14); a plurality of movable rig floor units (18, 20, 22 and 24), each rig floor unit (18, 20, 22 and 24) configured for location in the rig floor receiving area (14), to thereby define a rig floor of the rig assembly (12); and a transporter (26) configured to receive any one of the rig floor units (18, 20, 22 and 24), for transporting a selected one of the rig floor units (18, 20, 22 and 24) from a storage area (28) to the rig floor receiving area (14).

Abstract: A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.

Abstract: A method of forming and maintaining a low temperature zone around at least a portion of a subsurface treatment area is described. The method includes reducing a temperature of heat transfer fluid with a refrigeration system. The heat transfer fluid is circulated through freeze well canisters and placed in a formation around at least a portion of the subsurface treatment area. An initial temperature of the heat transfer fluid supplied to a first freeze well canister is in a range from about ?35 ° C. to about ?55 ° C. At least one of the well canisters includes carbon steel. The heat transfer fluid is returned to the refrigeration system.

Abstract: Wellheads for coupling to a heater located in a wellbore in a subsurface formation are described herein. At least one wellhead may include a heater located in a wellbore in a subsurface formation; and a wellhead coupled to the heater. The wellhead may be configured to electrically couple the heater to one or more surface electrical components. The wellhead may include at least one non-ferromagnetic material such that ferromagnetic effects are inhibited in the wellhead. Systems and methods for using such wellheads for treating a subsurface formation are described herein.