Halliburton Energy Services, Inc.

Marcus Ray Hudson

Christopher Michael Jones

Anthony Herman Van Zuilekom

Darren George Gascooke

Christian Reding

James Cernosek

Jay Paul Deville

David Earl Ball

Pramod Chamarthy

Dale E Jamison

William Walter Shumway

Bin Dai

Wei Zhang

Michel Joseph LeBlanc

Anthony Herman VanZuilekom

Matthew L Lee

Zhonghuan Chen

Jay DeVille

Roger L Shelton

A method and system for removing a filter cover. A system and method may comprise a downhole fluid sampling tool including a tool body; a flow port disposed on the tool body; a sample chamber disposed within the tool body and fluidly coupled to the flow port; a pump disposed within the tool body. In examples, the pump is configured to pump a fluid through the flow port into the sample chamber; a filter disposed on an inlet of the flow port, wherein the filter is configured to filter the fluid entering the flow port; and a removable filter cover configured to prevent fluid contact with the filter.

Protection of a wellbore tool using fluid medium dependent material

An expandable element isolation assembly and a well interval isolation device utilizing at least a pair of expandable element isolation assemblies to isolate a well interval are disclosed. An expandable element isolation assembly can comprise an expandable element, and at least one rigid support element that is located external to the expandable element and is positionable between at least part of the expandable element and an inner wall of a formation at an open-hole portion of a wellbore in response to expansion of the expandable element. The at least one rigid support element can reinforce the expanded expandable element, such as through physical contact therewith. A retraction mechanism may be provided to retract the at least one rigid support element upon contraction of the expandable element.

Expandable element assembly with external rigid support element to isolate well interval

A method of cooling at least a portion of a downhole tool located within a drilled wellbore using a fluid pill configured to transfer heat away from a heat-generating segment of the downhole tool. The downhole tool may be a wireline logging tool. The fluid pill can comprise at least one fluid coolant and may include other additives that enable the fluid pill to transfer heat away from a heat-generating segment of the downhole tool even in the presence of one or more fluids present in the drilled wellbore. The fluid pill can be introduced into residual drilling mud in the wellbore, and the downhole tool may thereafter be operated with the heat-generating segment thereof in fluid contact with the fluid pill, whereby heat generated by the heat-generating segment is transferred away from the downhole tool and toward a wall of the wellbore by the fluid pill.

Using fluid pill for heat transfer downhole

A well interval isolation device is disclosed. The wellbore isolation device may have a plurality of expandable elements that cooperate upon expansion downhole in a wellbore to create multiple isolated well intervals. At least two pairs of expandable elements that are spaced apart on a tool string are usable to create both a primary isolated well interval and at least one isolated guard interval on each of an uphole side and a downhole side of the primary isolated well interval. The isolated guard intervals function to further isolate the primary isolated well interval from surrounding well fluid, thereby allowing a difference between the pressure within the primary isolated well interval and the hydrostatic pressure of the well fluid (i.e., the differential pressure) to safely exceed the maximum differential pressure at which any of the individual expandable elements can operate while simultaneously maintaining isolation of the well intervals.

Isolation device with multiple pressure stages to isolate well interval

A downhole PVT tool for performing in-situ formation fluid phase behavior characterizations in a wellbore using pressure, volume, and temperature (PVT) measurements of the formation fluid while continuing to pump the formation fluids. The disclosed downhole PVT tool includes an intake mandrel and utilizes two individual pumps to split the formation fluid to perform PVT measurements during the fluid pump out. The downhole PVT tool, two-pump configuration permits a first pump to be used to pump formation fluid along a first flowpath and a second pump to be used to pump formation fluid along a second flowpath, with one or more sensors deployed along one of the flowpaths to perform fluid and/or gas phase behavior measurements to determine one or more properties of the formation fluid in-situ. The first pump may be utilized in the phase behavior analysis while the second pump simultaneously continues flow-through pumping of the formation fluid.

Dual pump reverse flow through phase behavior measurements with a formation tester

A method comprises flowing a mud into a wellbore, wherein the mud has a mud composition and has a weight in a defined range. The method includes introducing a fluid pill into the mud flowing into the wellbore, wherein the fluid pill has an injection fluid with an injection composition that is different from the mud composition. A particulate has been added to the injection fluid to increase the weight of the fluid pill. After flowing the mud into the wellbore such that the fluid pill is positioned in a zone of the wellbore: filtering out the particulate from the injection fluid; injecting, after the filtering, the injection fluid into the zone; measuring a downhole parameter that changes in response to injecting the injection fluid into the zone; and determining a property of the formation of the zone based on the measured downhole parameter.

Reverse drill stem testing

Growing community of inventors

Pearland, TX, United States of America

Marcus Ray Hudson