Abstract: The present invention relates to a ground milling machine, in particular a road milling machine, for removing ground material, comprising a machine frame having a chassis, a milling drum supported on a machine frame, and a transport device having at least one conveyor belt, which is configured for conveying removed ground material in a conveying direction away from the milling drum to a discharge point, as well as to a method for operating a ground milling machine. One aspect of the present invention is to provide an electrostatic precipitator, which reduces the dust pollution.
May 7, 2019
Date of Patent:
August 4, 2020
Robert Laux, Rafael Schomaker, Joachim Ponstein, Matthias Schaaf, Bernd Lubischer
Abstract: Embodiments of the present disclosure include a system for suspending a hanger within a wellbore component including an actuation ring circumferentially positioned about the hanger. The system also includes an arm removably coupled to the actuation ring, the arm extending longitudinally from the actuation ring and including a head at an end opposite the actuation ring. The system further includes a landing profile formed on the head on an outer diameter of the head, the landing profile including a plurality of landing features forming a plurality of landing shoulders. The system includes a tag shoulder formed on the actuation ring, the tag shoulder arranged to contact a protrusion within the wellbore component to drive upward axial movement of the actuation ring along an axis, the upward axial movement being transferred to the arm to move the arm toward an activated position.
Abstract: An assembly for pumping well fluid from a well includes a production conduit string having a polished bore receptacle. A coiled tubing segment with a power cable is suspended within the production conduit string. A motor, which is secured to the coiled tubing segment and electrically connected with the power cable, drives a pump. The pump discharge opens into a coiled tubing annulus between the coiled tubing segment and production conduit string. A gas separator has a heavier fluid outlet leading into the pump intake and a lighter fluid outlet leading into the production conduit string below the polished bore receptacle. A seal member extends between the gas separator and the pump in sealing engagement with the polished bore receptacle above the lighter fluid outlet and below the pump discharge.
Abstract: A downhole repairing system includes a downhole straddle assembly for straddling over a zone downhole in the well having a plurality of tubular sections. A downhole setting tool string has a tubular tool part with expansion openings for allowing pressurised fluid to flow out to expand expandable metal sleeves. The first end tubular section has a groove for receiving at least one retractable engagement part of a connection tool of the downhole setting tool string, and the second outer tool diameter is smaller than the second end inner diameter creating a first sealed distance which is less than 2 mm.
Abstract: A whipstock/bottom hole assembly (BHA) arrangement including a whipstock, a BHA, an interconnection arrangement releasably securing the whipstock to the BHA, a fluid flow configuration in the BHA, the configuration directed at the interconnection arrangement. A method for releasing a whipstock from a whipstock/bottom hole assembly (BHA) arrangement as in any prior embodiment including flowing fluid through the fluid configuration, eroding the interconnection arrangement with the fluid, and separating the whipstock from the BHA.
Abstract: An improved pick and pick holder assembly for use in mineral winning and the like. The improved pick and pick holder increases the effective life of a tool and pick holder by minimizing the shifting of the pick within the pick holder. The movement of the pick is minimized by front and rear bearing surfaces that remain positively engaged with front and rear bearing surfaces of the pick holder for loads applied to the pick that are predominantly inward and predominantly rearward.
June 18, 2014
Date of Patent:
July 28, 2020
ESCO GROUP LLC
Roberto de Jesus Torres Delgado, William Stephen Clapham
Abstract: A disintegrable downhole article comprises an electrolytically degradable metallic matrix and an energetic material comprising a first metal and a second metal that is in physical contact with the first metal. The first metal and the second metal are selected such that the first metal reacts with the second metal to generate an alloy, an intermetallic compound, heat, or a combination comprising at least one of the foregoing when electrically actuated. A method of controllably removing a disintegrable downhole article comprises disposing the downhole article in a downhole environment; performing a downhole operation; electrically actuating the energetic material; and disintegrating the downhole article.
Abstract: A downhole tool includes a tool member having a radially outer surface and a radially inner surface. The radially inner surface includes an angled section. A drive member is axially spaced from the tool member. The drive member includes a radially outer surface portion and a radially inner surface portion. The radially outer surface portion includes an angled portion. A seal element is provided on the drive member. The seal element includes a first portion coupled to the radially outer surface portion and a second portion that is radially outwardly disengagable from the radially outer surface portion in response to one of fluid pressure and fluid flow.
Abstract: A tracer-liner portion comprises an inner tube and an outer tube, each including at least one wall having an internal surface and an external surface, the walls of the inner tube and the outer tube being impermeable to fluid flow, the outer tube having an internal diameter which is larger than the outer diameter of the inner tube, the inner tube being arranged coaxially within the outer tube such that at least a portion of the external surface of the inner tube is covered by the outer tube; the internal diameter of the outer tube exceeds the outer diameter of the inner tube by an amount sufficient to form a space between the external surface of the inner tube and the internal surface of the outer tube, and a tracer material containing a tracer compound is present in the space.
Abstract: Radio frequency Micro-Electro-Mechanical System (“MEMS”) tags are geometrically shaped using protective structures. The MEMS tags may be added to wellbore cement, and pumped downhole. In addition to protecting the MEMS tags from the harsh downhole environment, the protective structures produce a more rounded shape which, in turns, increases the flow efficiency of the MEMS tags. An interrogation tool may be deployed downhole to interrogate the MEMS tags, to thereby perform a variety of wellbore operations such as assessing the integrity of the cement seal.
Abstract: A drilling system includes a hollow outer rod drive shaft that is configured to rotate an outer rod of a drill string. The outer rod drive shaft is driven by an offset hydraulic drive system. The drilling system also includes a hollow inner rod drive shaft that is configured to couple to and rotate an inner rod of the drill string at a first end. The inner rod drive shaft is driven by an inline hydraulic drive system. The inner rod drive shaft further defines an axial fluid flow passage. The drilling system also includes a fluid inlet passage that is axially aligned with the axial fluid flow passage of the inner rod drive shaft. The fluid inlet passage is operatively connected to a second end of the inner rod drive shaft. The fluid inlet passage is configured to direct fluid into the axial fluid flow passage of the inner rod drive shaft. The outer rod drive shaft and the inner rod drive shaft are mounted in fixed relative positions.
Abstract: Realtime on-site mechanical characterization of wellbore cuttings is described. At a surface of a wellbore being drilled at a wellbore drilling site, multiple cuttings resulting from drilling the wellbore are received. At the wellbore drilling site, nano-indentation tests on each of the multiple cuttings are performed. At the wellbore drilling site, mechanical properties of the multiple cuttings are determined based on the results of the nano-indentation tests.
May 11, 2017
Date of Patent:
July 14, 2020
Saudi Arabian Oil Company
Katherine Leigh Hull, Younane N. Abousleiman
Abstract: An annular barrier to be expanded in an annulus between a well tubular structure and a wall of a borehole downhole includes a tubular metal part having a first expansion opening, an axial extension and an outer face, an expandable sleeve surrounding the tubular metal part and having an inner face facing the tubular metal part and an outer face facing the wall of the borehole, each end of the expandable sleeve being connected with the tubular metal part, and an annular space between the expandable sleeve and the tubular metal part. Fluid inside the tubular metal part has a tubular pressure, and the annular barrier has an expansion unit having a first inlet in fluid communication with the expansion opening, a second inlet in fluid communication with the first zone and an outlet in fluid communication with the annular space.
Abstract: A bearing (12) for a downhole apparatus (10) comprises a body (42) and an upset portion (44). The upset portion (44) extends radially outwards from the body (42), the body (42) and the upset portion (44) defining a channel (46) for receiving fluid flow for lubricating the bearing (12).
Abstract: A system for launching or retrieving wireline electro acoustic technology (EAT) sensor assemblies in a downhole wellbore comprises an EAT launcher/retriever section and an EAT sensor assembly for placement in the EAT launcher/retriever section. The EAT launcher/retriever section comprises an external high pressure housing, attachment means at each end of the external high pressure housing, and a wedge shaped internal retractable launcher plate with an opening on one side to allow a fiber based wireline cable to pass through the EAT launcher section. The EAT sensor assembly comprises a center section comprising sensors and two end sections, each end section with a set of extendable grippers to grip a fiber based wireline cable, wherein the center section and both end sections comprise a V groove that allows the EAT sensor assembly to be centered on the fiber based wireline cable.
Abstract: Drill bits and methods relating thereto are disclosed. In an embodiment, the drill bit includes a body having a plurality of legs each having a lower section that has a leading surface and a trailing surface. A plurality of cone cutters are each rotatably mounted to the lower section of one of the legs, each having a cone axis, and including a first plurality of cutter elements arranged about the cone axis such that each is shear the formation when the body is rotated about the bit axis.
Abstract: The present invention provides a modular electrical feedthrough system for use in offshore and top-side electrical submersible pump (“ESP”) installations. A modular electrical connection system includes a stab receptacle assembly for mating with a stab plug assembly and a compliance mount. The stab plug assembly includes stab plugs and guide funnels adapted to guide the stab receptacles into a mating position with the stab plugs. The compliance mount compensates for physical misalignment between stab receptacles and stab plugs. A tubing hanger assembly forms a pressure barrier at a production bore by use of a tubing hanger penetrator assembly including a set of seals to isolate the electrical penetrator from the production bore. A secondary penetrator assembly provides a redundant pressure barrier for increased safety and system reliability.
December 22, 2015
Date of Patent:
July 7, 2020
Teledyne Instruments, Inc.
David A Painter, Brandon M Watson, Alexander D Socha
Abstract: A core barrel head assembly including an upper body comprising a central passage. A pair of latches is arranged in the central passage. Each latch pivots about a pivot point at a first end. Each latch includes a latch release at a second end and an outer tube surface engaging surface between the first end and the second end. A retracting case includes a first end configured to engage at least the latch release of the latches. The outer tube surface engaging surface of each latch extends through a latch slot in an outer wall of the upper body and such that the latches rotate about the pivot point. The latches are movable between an extended position and retracted position by the retracting case with a mechanical advantage.
Abstract: An actuator assembly with integrated torque turn monitoring is described. Embodiments include a rotationally fixed outer hydraulic section and a rotationally independent inner hydraulic section which incorporates torque load sensors, axial load sensors, and rotational speed sensors directly into the inner hydraulic section. The inner hydraulic section is coupled to an outer cage by a cage ring and is axially movable relative to the inner mandrel. Upper and lower fluid chambers are disposed between the outer housing assembly and the inner mandrel. Fluid pumped through a lower pressure port into the lower chamber moves the housing assembly in a first direction, and fluid pumped through an upper pressure port into the upper fluid chamber moves the housing assembly in a second direction.
Abstract: A method of drilling vertical and horizontal pathways to mine for solid natural resources involves a drill bit, at least one reamer, a first plugging material, and a second plugging material; drilling a testing wellbore to a specific vertical depth with the drill bit and identifying at least one desired mining section wherein the desired mining section is associated with a corresponding vertical depth; creating a new bottom end for the testing wellbore by filling the testing wellbore up to an offset distance with the first plugging material; drilling a horizontal access hole from the new bottom end into the desired mining section with the drill bit and enlarging it with a reamer; excavating cuttings from the desired mining section through the horizontal access hole; filling the horizontal access hole with the second plugging material; and repeating the drilling, enlarging, and filling process to create a plurality of lateral holes.