Halliburton Energy Services, Inc.

Tamko Building Products, Inc.

Kyle Wayne Davis

David C Humphreys

Jon-Howard Elliott Hanson

Chris Freeborg

Alex Alekhine

Matthew James Merron

Matthew Todd Howell

Peter Reid Maher

James Gregory Powell

Matt James Merron

Christopher Freeborg

Alan Pace

Jonathan Marta

Timothy Simmonds

Gavin Munro

Disclosed herein are various embodiments of an isolation device comprising a top slip, a top slip prop in engagement with the top slip, a bottom slip, a bottom slip prop in engagement with the bottom slip, a packer element positioned between the top slip prop and the bottom slip prop, wherein movement of the top slip prop and the bottom slip prop towards each other causes the packer element to expand outwardly, an annular receptacle formed between the inner mandrel and the top slip prop, and a pressure transfer sleeve at least partially disposed within the annular receptacle.

Pressure transfer sleeve for top slip retention

Disclosed embodiments relate to isolation devices for use downhole in a wellbore, for example to isolate a zone of a well. Isolation device embodiments may include a slip, a wedge, a seal element, and a retaining mechanism. The slip may have a run-in position with respect to the wedge and a set position with respect to the wedge. The seal element may be configured to expand radially during movement from the run-in position to the set position. The retaining mechanism may be configured to allow movement of the slip from the run-in position towards the set position, but to lock the slip in the set position. In embodiments, the retaining mechanism may be configured to prevent dislocation of the slip when set, for example forming a retaining cage around the slip.

Slip retention mechanism for downhole isolation device

A downhole tool for cleaning a wellbore includes a tool body having a passage therein. A liquid is to flow through the passage of the tool body and have an intermittent flow pattern. An inner sleeve positioned within the tool body includes a recess having a recess pattern. In response to the intermittent flow pattern of the flow of fluid, a shift pin positioned in the recess of the inner sleeve is to traverse through the recess pattern. The downhole tool includes at least one scraper blade. The scraper blade is movable between a retracted position and a radially expanded position. In response to the shift pin traversing the recess pattern of the recess, the scraper blade can be expanded radially outward toward a wall of the wellbore from the retracted position to the expanded position and/or retracted inward away from the wall of the wellbore from the expanded position to the retracted position.

Remotely activated multi-cycle wellbore cleaning tool

Disclosed are methods and devices for forming a combined polyester and fiberglass mat, in which separate polyester and fiberglass layers can be formed or polyester filaments and fiberglass threads can be mixed together by a disperser to form a polyester and fiberglass web. The polyester filaments and the fiberglass threads can be dispersed by separate dispersers on a web forming belt to form separate layers of polyester filaments and fiberglass threads, or can be dispersed by a single disperser to at least, somewhat evenly disperse, the fiberglass threads and polyester filaments.

Continuous nonwoven polyester fiber and fiberglass thread hybrid mat

A downhole torque limiter. The downhole torque limiter may include a tubular housing; a pipe positioned within the tubular housing, the pipe transitioning from a larger inside diameter (ID) to a smaller inside diameter (ID), thereby forming a venturi profile having a first pressure zone (Z) and a second pressure zone (Z); a tubular valve plate radially positioned between the tubular housing and the pipe and rotationally fixed with the pipe; a lower sub rotationally fixed relative to the tubular housing and rotationally coupled to the tubular valve plate via a clutch mechanism; and a valve assembly positioned within a longitudinal opening extending along at least a portion of a sidewall of the tubular valve plate, the valve assembly configured to be activated by a pressure drop created by fluid flowing through the venturi profile.

Venturi activated downhole torque limiter

Disclosed is a release material that can be applied as a liquid, gel, emulsion, foam, etc. in a shingle manufacturing line. The release material can also be used in the manufacturing of roll roofing. The release material primarily constitutes an emulsion of polymers that can be cured with heat, IR light or other methods. Silicone may also be included in the emulsion which assists in releasability. The release material can be sprayed or extruded on to the surface of the shingle in an automated fashion, eliminating the necessity for operator interaction.

Applying a release material to a shingle during manufacturing

An asphalt shingle manufacturing machine that includes a curtain die for applying a liquid release layer on an asphalt coated substrate. The moisture of the liquid release layer evaporates leaving a dispersed solid particulate release layer. The curtain die includes a first body section and a second body section with a shim disposed between the body sections to define a distribution channel. The second body section may include chamber manifold defined therein to store a volume of liquid release agent. The distribution channel places the chamber manifold in fluid communication with a discharge outlet of the curtain die in order to disperse a volume of liquid release agent from a chamber manifold out of the discharge outlet. The shim may be configured to define a width of the distribution channel to determine the flow rate and discharge pattern of the liquid release agent.

Curtain die for applying a liquid release agent to a shingle substrate

A pump down ring is utilized in a downhole tool for use in a subterranean well. The pump down ring is positioned around the outer surface of a sleeve and is slidably disposed thereon. The pump down ring slidably engages the sleeve so as to have a radially-relaxed position and an expanded position where the pump down ring is expanded radially outward from the radially-relaxed position. Accordingly, the pump down ring can be placed in its expanded position to facilitate placement of the downhole tool in a wellbore by use of fluid pressure and can be placed in its radially-relaxed position to facilitate removal of the downhole tool from the wellbore.

Retractable pump down ring

Dissolvable casing liners are utilized to isolate existing perforations. A dissolvable casing liner is deployed downhole along the interior of a casing string having a plurality of perforations. The casing liner is then secured against the casing string, thereby effectively sealing the perforations. Once the perforations are isolated, refracturing operations may be conducted. At some time thereafter, the casing liner is dissolved and removed from the wellbore.

Dissolvable casing liner

Disclosed is a system for measuring and controlling the thickness of asphalt roofing materials during manufacturing. Light beams are used to generate a time of flight signal that is used to determine the thickness of the asphalt roofing layer. A controller generates a thickness control signal that controls a coater to modify parameters of the coater to produce the asphalt roofing layer with a desired thickness.

Growing community of inventors

Oklahoma City, OK, United States of America

Kyle Wayne Davis