Abstract: There is disclosed a fluid driven motor of particular use, for example, in drilling apparatus or in powering underwater excavation apparatus. Known motors suffer from a number of problems, e.g. lack of sufficient hydraulic efficiency. According to one aspect of the present invention there is provided a motor comprising a stator and a rotor rotatably mounted in the stator, wherein the stator is provided with at least one rod recess formed in an inner surface thereof, the stator providing at least one inlet/exhaust port communicating between a surface of the rod recess and an outer surface of the stator, the rotor is provided with a rotor channel and at least one channel for conducting motive fluid from the rotor channel to a chamber between the rotor and the stator, and the at least one rod recess is provided with a rod which, in use, may form a seal between the stator and the rotor.

Abstract: The present invention discloses, in certain embodiments, a method for treating a concrete slurry to recover constituents thereof, the constituents including water, coarse aggregate, fine aggregate, and cement solids, the method comprising removing aggregate from the concrete slurry with aggregate separation apparatus, the aggregate separation apparatus producing a secondary slurry containing cement solids, feeding the secondary slurry to a clarifier in which cement solids settle out from the secondary slurry to a bottom of the clarifier and a liquid which is primarily water is disposed above the cement solids, removing the liquid from the clarifier, feeding settled out cement solids in liquid from the clarifier to a centrifuge, separating settled out cement solids from the liquid in the centrifuge producing an amount of liquid and an amount of settled out cement solids with liquid.

Abstract: A protector has been invented for positioning in a space between two vehicles, one positioned behind the other the protector including a protective member configured to fit into the space between the two vehicles, and movement apparatus connected to the protective member for accommodating relative movement between the two vehicles. In one aspect the protector is formed of flexible material such as screening, mesh, metal foil, cloth, canvas, fencing, fiberglass, nylon and plastic. In another aspect the protector has a sub-member formed of or secured to the protective member and positioned to protect the protective member from effects of a vehicle exhaust adjacent the protective member when the protector is emplaced between two vehicles.

Abstract: Wellbore operations (e.g. for milling and/or drilling) are disclosed which require a reduced number of tool trips into a wellbore to create a cut-out pocket or window in a tubular such as casing in the wellbore and, in some aspects, to continue into a formation adjacent a main wellbore forming a lateral wellbore in communication with the main wellbore. Preferably one trip is required. A milling apparatus has been invented with milling apparatus for milling a tubular member and a nose cone releasably connected to the milling apparatus and releasably connectible to a diverter that directs the milling apparatus toward the tubular member. A nose cone for a milling apparatus has been invented with a body member, the body member having a mid portion, a top portion and a lower nose portion, and the top portion releasably securable to the milling apparatus and the lower nose portion releasably securable to a concave of a whipstock.

Abstract: A new wellbore cementing system has been developed which includes, in certain embodiments, a plug container with a flow diverter for diverting a portion of flowing fluid away from plugs in the plug container; a plug set system with internal sleeves or dart receivers with shearable parts for shearing to selectively release plugs--all in certain embodiments made of non-metal material and/or plastic; a swivel equalizer with internal valving to isolate a plug set (or any other item) from torque and to relieve pressure below the swivel equalizer; and unique burst tube systems for selectively controlling fluid flow and plug system operation.

Abstract: A method for milling an opening, slot, hole, or window in a tubular of a tubular string in a wellbore, has been invented which includes installing a mill system in the tubular at a desired milling location, and milling an opening in the tubular. In one aspect the method includes using a mill which has a weight member below the mill, above the mill, or both. In one aspect additional weight is added to the weight member once it has been introduced into the tubular string.

Abstract: A whipstock has been invented that has a whipstock body, a concave connected to or formed integrally of the whipstock body, and connection apparatus for releasably connecting the whipstock body to another member. In one aspect the another member is anchor apparatus and the connection apparatus has a shearable member shearable to release the whipstock from the anchor apparatus that initially anchors the whipstock in a wellbore (or in a tubular member).

Abstract: A method for milling an opening in a tubular in a wellbore, the method comprising installing a mill guide in the tubular at a desired milling location, inserting milling apparatus through the tubular and through the mill guide so that the milling apparatus contacts the tubular at the desired milling location and contacts and is directed toward the tubular by the mill guide, and milling an opening in the tubular. In one aspect the method includes installing a whipstock in the tubular and disposing the mill guide adjacent the whipstock to protect a concave portion of the whipstock. In one aspect the method includes retrieving the mill guide from the wellbore and in another aspect includes retrieving the whipstock from the wellbore.

Abstract: A method for a person to interact with an animal has been invented which includes a person throwing a plate on which at least one item is releasably mounted, retrieving the plate by the animal for the person, releasing of the at least one item from the plate by the person, and giving the at least one item to the animal.

Abstract: A holder for holding collapsed coiled tubing has been invented which, in one aspect, has a first plate, a second plate, securement apparatus for releasably securing the plates together in a spaced-apart relationship about at least one portion of a collapsed tubular, e.g. but not limited to coiled tubing, and at least one gripper or gripping element on one plate for gripping the collapsed tubular between the first plate and second plate. In one aspect such a holder has gripping elements which include a first die device on the first plate and a second die device on the second plate, the first die device disposed opposite the second die device when the holder is installed around a collapsed tubular. In one aspect dies are longitudinally offset with respect to upper and/or lower dies so that gripping is achieved across a wider portion or substantially all of the width of a collapsed tubular. In one aspect such a holder is an elevator with an elevator hook on each plate so the holder serves as an elevator.

Abstract: A new wellbore tractor system has been invented which, in one aspect has at least two slip units for alternately and releasably anchoring the system within a wellbore or within a tubular member and at least two movement units for moving an item in a wellbore, such as, but not limited to cable, tubing, casing, a tubular string or coiled tubing. In one aspect power strokes of the movement units overlap in time so that the system provides continuous motion. In another aspect a wellbore tractor system has been invented for moving an item through a wellbore, the wellbore extending from earth surface to an underground location, the system comprising a body connected to the item, first setting means on the body for selectively and releasably anchoring the system in a wellbore, first movement apparatus on the body for moving the body and the item, the first movement means having a first power stroke, and the wellbore tractor system for moving the item through the wellbore at a speed of at least 100 feet per minute.

Abstract: The present invention discloses, in certain preferred aspects, a whipstock with a body with a top, a bottom, and a cavity in the body, a sacrificial element secured to the top of the body, the sacrificial element having at least one surface for abutment by a first mill moving down adjacent the whipstock to guide the first mill while the first mill mills a tubular in which the whipstock is positioned and the sacrificial element for inhibiting the mill from contacting the body, the first mill having a curved outer shape and a nose projecting downwardly therefrom, the nose having a nose shape, the cavity defined by sides of the body and having filler material therein, the sides of the body presenting a face for abutment by a second mill while the second mill moves down adjacent the whipstock to mill a window in the tubular, the face for guiding the second mill and inhibiting the second mill from contacting the body other than the sides thereof defining the cavity, the sacrificial element having a groove therein

Abstract: A new wellbore cementing system has been developed which includes, in certain embodiments, a plug container with a flow diverter for diverting a portion of flowing fluid away from plugs in the plug container; a plug set system with internal sleeves or dart receivers with shearable parts for shearing to selectively release plugs--all in certain embodiments made of non-metal material and/or plastic; a swivel equalizer with internal valving to isolate a plug set (or any other item) from torque and to relieve pressure below the swivel equalizer; and unique burst tube systems for selectively controlling fluid flow and plug system operation.

Abstract: A drilling motor has been developed with a hollow tubular stator having at least one rod recess therein and an inlet port therethrough corresponding to each of the at least one rod recess; a rod movably disposed in each of the at least one rod recess; a tubular rotor movably disposed within the stator for rotation therein, the tubular rotor having a central motive fluid flow channel therethrough and extending along the length of the rotor, the rotor having one or more radial exhaust flow channels therethrough for providing a motive fluid flow path to the central motive fluid flow channel from at least one action chamber between the hollow tubular stator and tubular rotor; the tubular rotor having at least one rotor seal; and the at least one action chamber defined by an interior surface of the hollow tubular stator and an exterior surface of the tubular rotor, each of the at least one action chamber sealed at one end by the rod and at another end by one of the at least one rotor seals.

Abstract: A tubular patch system has been invented for patching operations which, in one aspect, is useful as a "through tubing" tubular patch system and has a body and a series of selectively expandable members which, once having passed through a tubular of a first diameter, are expandable in a tubular of a second diameter larger than the first diameter and then operable to expand a liner patch to seal a leak in the tubular of the second diameter. Such a system may be used in a tubular disposed within a wellbore or in a tubular on the earth surface.

Abstract: The present invention, in one embodiment, teaches a flow restrictor which accomplishes within a single unitary integral device cyclonic separation of larger, heavier solids from lighter smaller solids; collection of retained solids in a relatively large collection chamber; straining of certain solids to further protect the device from plugging; and flushing a fluid, e.g. the primary flow stream, through the device to facilitate removal of collected solids.In one embodiment a device according to this invention has a main body with a fluid inlet and a fluid outlet. Fluid flowing in through the inlet encounters a vaned end of a hollow mandrel with one or more vanes or a mandrel with a deflector thereon or both which induce turbulent flow in the fluid and directs solids entrained therein away from the mandrel to a solids collection area or chamber within the main body.

Abstract: A wellbore milling system has been invented which includes, in one aspect, a lower window mill, and two watermelon mills connected above the window mill. In one aspect the topmost of the two watermelon mills has a plurality of cutting blades with rough dressed outer surfaces and the lowermost watermelon mill has such blades with smooth outer surfaces. Such a system may be used in a multi-trip method with a starter mill first run into a wellbore to start a window to be milled by the window-watermelon-mills combination.

Abstract: A treatment composition for treating contaminated material is disclosed which has water, coal, and an alkali metal carbonate. In another aspect an additional ingredient is a seaweed derivative. A method for making such a treatment composition for treating contaminated material has been developed which includes introducing water into a first tank, blending in alkali metal carbonate in the first tank with the water to form a first composition, adding coal to the first composition and blending them together forming a base composition, introducing one half of the base composition from the first tank into a second tank, introducing an amount of seaweed derivative into the second tank equal in volume to the amount of base composition in the second tank, and blending the contents of the second tank together producing the treatment composition.

Abstract: The present invention discloses a system and method for simultaneously installing a pipe loop and a grout pipe in a wellbore. In another aspect such a system is then used to grout the wellbore by releasing the grout pipe from the pipe loop or from a bottom member connected with the pipe loop and then introducing grout through the pipe into the wellbore as the grout pipe is removed upwardly from the wellbore. In another aspect a drilling-grouting system is provided with which while one hole is being drilled a previously-drilled hole is being grouted.

Abstract: The present invention, in one aspect, discloses a system for selectively anchoring a wellbore tool at a desired location in a wellbore or tubular member such as casing or tubing; such a system with a selectively settable anchor assembly that has a piston that is moved upwardly by fluid under pressure from the surface thereby moving one or more movable slips out from a body of the anchor assembly to set the anchor assembly in place; and such a system with a whipstock connected to the anchor assembly. Fluid under pressure pumped from the surface down a workstring to which the system is connected flows to the anchor assembly through or adjacent the whipstock. In one aspect a mill (or mills) is releasably connected to the whipstock. In one aspect, fluid under pressure flows through or adjacent the mill(s) to the whipstock.