Halliburton Energy Services, Inc.

Stephen Allen Yeldell

Frank Vinicio Acosta

Min Mark Yuan

Lonnie Carl Helms

Kevin Wendell Ardoin

Rajesh Parameshwaraiah

Handoko Tirto Santoso

Saul Emmanuel Vazquez Niebla

Avinash Gopal Dharne

Luke Christopher Downey

Mine Kazanci

Julio Alberto Cornejo

Jamaal Brickhouse

Randolph Dharamchan Depoo

Benny E Dawsey

Rafael Hernandez

An instrumented wiper dart configurable at the wellsite comprising any combination of a sealing member, a sensor sub, an electronics package, and a communication system; wherein the sealing member is cylindrical in shape, releasably coupled to the wiper assembly, and configured to sealingly engage the inner surface of a workstring. The sensor sub is release releasably coupled to the wiper assembly, and includes one or more sensors to measure a property of the wellbore environment. The electronics package is releasably coupled to the wiper assembly, configured to receive one or more data sets from the sensor sub, and transmit one or more data sets to the communication sub. The communication sub is configured to transmit the one or more data sets; and wherein the instrumented wiper plug is displaced down the workstring in response to a volume of fluid pumped from surface.

Traceability of cementing plug using smart dart

Valve systems for inserting into casings used in downhole environments are provided. The valve system includes a mandrel, a check valve assembly, and a setting system. The setting system includes a sealing element, a pair of wedges, and a pair of slips, each located on an outer surface of the mandrel. The wedges are separated from each other by the sealing element. Each wedge includes an inner surface configured to slide along the outer surface of the mandrel and an angled surface having a first set of ratchet teeth. The slips are separated from each other by the pair of wedges. Each slip includes an inner surface having a second set of ratchet teeth configured to engage the first set of ratchet teeth. Also, each slip includes an outer surface having gripping elements configured to grip an inner surface of the casing.

Downhole check valve assembly with a ratchet mechanism

Valve systems and methods for inserting into a casing in a downhole environment are provided. A valve system includes a tool mandrel, a check valve assembly, and a setting system. The setting system includes a sealing element, wedges, slips, and a set nut. Each of the wedges and slips includes an inner surface slidable along the outer surface of the tool mandrel. Each wedge includes a primary angled surface and a secondary angled surface. The wedges are located between the slips and the secondary angled surface of one wedge is in contact to the secondary angled surface of the other wedge. Each of the slips includes an outer surface including gripping elements configured to grip an inner surface of the casing. Also, each of the slips includes an angled side surface configured to engage with the primary angled surface of the wedge.

Downhole check valve assembly with a locking mechanism

A downhole apparatus comprises a casing string with a frangible disk positioned therein. A flow barrier is connected in the casing string and spaced downwardly from the frangible disk. The frangible disk and the flow barrier define a buoyancy chamber. The sliding sleeve will impact and shatter the frangible disk into a plurality of pieces that will pass downwardly in the casing after the casing has been lowered to a desired depth.

Downhole apparatus

Valve systems and methods for inserting into a casing used in a downhole environment are provided. The valve system includes a tool mandrel, a check valve assembly, and a setting system. The setting system includes inner and outer setting mandrels and a slip collar. The inner setting mandrel is located around at least a portion of the tool mandrel and includes a frustoconical outer surface. The outer setting mandrel is located around at least a portion of the inner setting mandrel and includes a frustoconical inner surface. The slip collar is located around at least a portion of the outer setting mandrel and includes a plurality of tabs and each tab includes gripping elements.

Downhole check valve assembly with a frustoconical mandrel

A buoyancy assist tool has an outer case and a rupture disk connected in the outer case. A sleeve is disposed in the outer case and movable from first to second position in the outer case. A rupture disk membrane of a rupture disk prevents the sleeve from moving to the second position prior to the rupture disk membrane rupturing. The outer case is configured to be connected in a well casing. A lock ring holds the sleeve in the first position.

Buoyancy assist tool

A buoyancy assist tool has an outer case and a sleeve disposed in the outer case. The sleeve is movable from first to second positions in the outer case. A permeable membrane is attached to the movable sleeve at a lower end thereof. A rupture disk is mounted in the outer case. Fluid flow through the permeable membrane detaches the sleeve from the outer case and moves the sleeve from the first to the second position. In the second position, the sleeve creates an open bore for the passage of downhole tools therethrough.

A packer assembly and valve assembly without special or custom threads are used to provide a threadless float assembly. A packer assembly with inserts disposed in slip wedges is set by applying compressive forces using a setting tool. A valve assembly may be positioned during setting of the packer assembly between a holder and a setting tool insert end or may be positioned abutting a spacer after setting of the packer assembly. A setting tool and a plunger along with a pump are used to apply compressive forces on the packer assembly to set the packer assembly without requiring that the packer assembly or the valve assembly have special threading as the inserts, holder and spacer maintain the components in a stationary position.

Threadless float equipment and method

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.

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Humble, TX, United States of America

Stephen Allen Yeldell