Patent application number | Description | Published |
20080230233 | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore - A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. A setting mechanism connected to the slips is also located in the pocket. An actuator is mounted on the liner. As the liner is moved through the casing coupler, the actuator actuates the setting mechanism, causing the slips to move axially downward. As the setting mechanism moves downward, the slips move radially inward and grip the liner. | 09-25-2008 |
20080257561 | Casing coupler liner hanger mechanism - A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. Both a setting mechanism and a liner engagement member are connected to the slips and are also located in the pocket. A releasable latching mechanism maintains the slips in the run-in position until the releasable latching mechanism is actuated. As the liner is moved through the casing coupler, the liner engagement member engages the liner through frictional force to cause the setting mechanism to move with the liner so that the latching mechanism can be disengaged and the slips can move axially downward. As the setting mechanism moves downward, the slips move radially inward and grip the liner. | 10-23-2008 |
20090071654 | Tubing Retrievable Injection Valve - A flapper type downhole valve is opened by flow against the flapper. The flapper and the housing contain magnets that hold the flapper open after it has been opened by flow to keep the flapper from chattering from the flow going past it. The strength of the force is not sufficient to hold the flapper open against a torsion spring on a pivot pin, when there is no flow through the valve. The valve can still be held in the locked open position with no flow through the housing by pressurizing the surrounding annulus to position another magnet to increase the holding force to a level greater than the force of the torsion spring. The additional magnet is spring biased so that upon removal of annulus pressure it shifts to allow the flapper to close. Alternative designs with and without a flow tube are possible. Fixed or movable restrictions can be associated with the flow tube to create a force to shift it to open a flapper with flow into the well. | 03-19-2009 |
20090084549 | Downhole tools having screens for insertion into gravel disposed in wellbores and methods of installing same - Downhole tools for gravel pack completion processes in wellbores comprise a screen, an isolation device comprising a sealing element disposed above the screen, and an artificial lifting device disposed above the isolation device. Upon actuation, the sealing element divides the wellbore into an upper zone and a lower zone so that the screen is disposed in the lower zone and the artificial lifting device is disposed in the upper zone. The two zones are in fluid communication with each other through a longitudinal bore within the downhole tool. In operation, the artificial lifting device of the downhole tool creates a negative pressure so wellbore fluid is transported from the lower zone into the upper zone. Due to this flow of fluid through the downhole tool, gravel disposed within the wellbore becomes sufficiently fluidized to facilitate the screen being inserted into the gravel form the gravel pack completion. | 04-02-2009 |
20090095368 | HIGH FRICTION INTERFACE FOR IMPROVED FLOW AND METHOD - A tubular body for flowing fluid includes an inside diameter surface of the tubular body; and a surface treatment of the inside diameter surface sufficient to cause a viscous interaction with a fluid flowing therethrough and method. | 04-16-2009 |
20090159268 | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore - A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. A setting mechanism connected to the slips is also located in the pocket. An actuator is mounted on the liner. As the liner is moved through the casing coupler, the actuator actuates the setting mechanism, causing the slips to move axially downward. As the setting mechanism moves downward, the slips move radially inward and grip the liner. | 06-25-2009 |
20090159296 | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore - A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. A setting mechanism connected to the slips is also located in the pocket. An actuator is mounted on the liner. As the liner is moved through the casing coupler, the actuator actuates the setting mechanism, causing the slips to move axially downward. As the setting mechanism moves downward, the slips move radially inward and grip the liner. | 06-25-2009 |
20090173492 | SURFACE ACTIVATED DOWNHOLE SPARK-GAP TOOL - A completion mounted spark gap tool comprising a completion component housing; a spark gap device having a plurality of electrodes at the housing and configured to produce a shockwave having a frequency in the range of about 0.1 to about 100 HZ; a voltage source in operable communication with the electrodes and a method for far field stimulation. | 07-09-2009 |
20090178802 | PARASITICALLY POWERED SIGNAL SOURCE AND METHOD - A system for monitoring a wellbore including a parasitic power generation configuration, a signal source in operable connection with the parasitic power generation configuration, the source being permanently positioned within the wellbore and capable of providing a signal that is receivable by a separate device to query condition of the wellbore, and method for monitoring the wellbore. | 07-16-2009 |
20100011559 | Retrofit Seals and Method for Placement in an Existing Groove - A seal is retrofit to an existing seal groove and made whole after being positioned in the groove. It can be an initial coil shape to allow it to slip over a shaft to get to the groove or it can be in a plurality of sections that are joined in place. The sections can be abutting or overlapping and are preferably coated with a brazing material that will ultimately join such ends. The ends can then have a nano-engineered coating that comprises alternating layers of aluminum and nickel that when initiated with applied heat becomes reactive exothermically to join the ends using the brazing material. | 01-21-2010 |
20100088895 | Cylindrical Spring Fabricated by Compressive Force - A spring for use in downhole tools delivers a high force over a long deflection in a relatively uniform fashion. The spring is a tubular shape that is preferably metallic and is preferably plastically deformed into an undulating walled tube either before assembly into a downhole tool or downhole after assembly to the downhole tool. Alternatively the shape can be machined. Spacer rings are used inside and outside the tube as it is compressed to obtain the desired corrugated wall pattern and to prevent localized buckling that can cause wall failure. The spring can conduct pressurized fluids and be rotationally locked to transmit torque and to facilitate milling out. Some machining internally and/or externally can assist in forming the desired corrugated wall shape. | 04-15-2010 |
20100307767 | Coupler retained liner hanger mechanism with moveable cover and methods of setting a hanger inside a wellbore - A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. A moveable cover is disposed interior to the slip thereby restricting movement of the slip from a unset position to a set position. The liner hanger housing is secured in the string of casing and an actuator is mounted on the liner. As the liner is moved through the casing coupler, the actuator actuates the cover, causing the cover to be moved so that the slip can move axially downward from its unset position to its set position. As the cover is moved, the slip moves radially inward and grips the liner to secure the liner within the casing string of the wellbore. | 12-09-2010 |
20110011585 | Apparatus and Method for Controlling Flow of Solids Into Wellbores Using Filter Media Containing an Array of Three-Dimensional Elements - In aspects, the disclosure provides an apparatus that may include a member having fluid flow passages and a filter member placed proximate the member with the fluid flow passages, the filter member including an array of three-dimensional elements configured to inhibit flow of solid particles of a selected size when a fluid containing such solid particles flows from the filter member to the member with the fluid flow passages. | 01-20-2011 |
20110024105 | Multi-zone Screen Isolation System with selective Control - A modular screen system allows connection of screens using couplings that connect the annular space in each module between the screen material and the base pipe. A series of connected screens and couplings feed into a single valve to control the flow through many screens. The valve is preferably located in a coupling and the passages through the coupling or the screen can also accommodate instrumentation to detect, store or transmit well data or flows through the various screen modules. | 02-03-2011 |
20110146975 | Wireline-Adjustable Downhole Flow Control Devices and Methods for Using Same - A method of producing fluids from a wellbore that has therein n adjustable flow control device for controlling flow of fluid between a formation and the wellbore may include: providing a tool having a sensor configured to provide measurements relating to a downhole property of interest, wherein the tool is configured to adjust flow from the flow control device; conveying the tool into the wellbore; determining the property of interest using the tool; and adjusting the flow through the flow control device with the tool at least in part in response to the determined parameter of interest. An apparatus for controlling fluid flow between a formation and a wellbore, according to one embodiment may include: a tool configured to be conveyed into a wellbore that contains at least one sensor for estimating a property of interest downhole and a latching device configured to couple to a flow control device in the wellbore to alter flow of the fluid through the flow control device. | 06-23-2011 |
20110147006 | Downhole-Adjustable Flow Control Device for Controlling Flow of a Fluid Into a Wellbore - A flow control device is provided that in one embodiment includes a flow-through region configured to receive formation fluid at an inflow region and discharge the received fluid at an outflow region and a setting device configured to adjust the flow of the fluid through the flow-through region to a selected level. The setting device includes a coupling member configured to be coupled to an external latching device adapted to move the coupling member to cause the setting device to alter the flow of the fluid from the flow-through region to the selected level. | 06-23-2011 |
20110147007 | Downhole-Adjustable Flow Control Device for Controlling Flow of a Fluid Into a Wellbore - A flow control device is provided that in one embodiment includes a flow-through region configured to receive formation fluid at an inflow region and discharge the received fluid at an outflow region and a setting device configured to adjust the flow of the fluid through the flow-through region to a selected level. The setting device includes a coupling member configured to be coupled to an external latching device adapted to move the coupling member to cause the setting device to alter the flow of the fluid from the flow-through region to the selected level. | 06-23-2011 |
20110162837 | Filtration of Dangerous or Undesirable Contaminants - Nanoparticle-treated substrates, such as screens, sand beds or proppant beds, may effectively filter and purify fluids such as waste water or fluids produced from a formation, as well as other liquids. When tiny contaminant particles in a fluid such as waste water flow contact the nanoparticle-treated substrate, the nanoparticles will capture and hold the tiny contaminant particles on the substrate due to the nanoparticles' surface forces, including, but not necessarily limited to van der Waals and electrostatic forces or other associative forces. Coating agents such as alcohols, glycols, polyols, vegetable oil, and mineral oils may help apply the nanoparticles to the surfaces of structures in the filter beds or packs. | 07-07-2011 |
20110168385 | Resilient Foam Debris Barrier - A space filler material is used to prevent accumulation of debris that could later foul the operation of adjacent moving parts. In one application a void space that is subsequently closed by actuated parts is initially filled with a material that is highly compressible and has voids that allow it to compress without undue resistance to part movement when the void volume is reduced. Ideally, the pores or voids in the material itself are small enough to keep most if not all the debris from entering and making the space filling material too rigid to collapse under part movement. In an alternative application, the material can be in an annular space such as a seal bore and it can keep debris from getting past the seal bore while allowing hydrostatic pressure across itself thereby helping it to maintain its position until moved such as by shifting of an inner string to which it is attached. | 07-14-2011 |
20110168387 | Resilient Foam Debris Barrier - A space filler material is used to prevent accumulation of debris that could later foul the operation of adjacent moving parts. In one application a void space that is subsequently closed by actuated parts is initially filled with a material that is highly compressible and has voids that allow it to compress without undue resistance to part movement when the void volume is reduced. Ideally, the pores or voids in the material itself are small enough to keep most if not all the debris from entering and making the space filling material too rigid to collapse under part movement. In an alternative application, the material can be in an annular space such as a seal bore and it can keep debris from getting past the seal bore while allowing hydrostatic pressure across itself thereby helping it to maintain its position until moved such as by shifting of an inner string to which it is attached. | 07-14-2011 |
20110247801 | SCREEN DEVICE AND DOWNHOLE SCREEN - A screen device includes a foam body having a passageway that extends longitudinally through the foam body, the foam body has an open cell structure such that at least two surfaces of the foam body are in fluidic communication with one another through the foam body. | 10-13-2011 |
20120037362 | FLUID METERING TOOL WITH FEEDBACK ARRANGEMENT AND METHOD - A downhole tool with a feedback arrangement including a tool having one or more fluid outflow ports that exhaust fluid during normal operation of the tool. A feedback arrangement in operable communication with the fluid exhausted from the one or more fluid outflow ports during operation of the tool. The feedback arrangement interacting with exhausting fluid to produce a signal receivable at a remote location indicative of proper tool operation. A method for confirming operation of a downhole tool is included. | 02-16-2012 |
20120090830 | Apparatus Including Metal Foam and Methods for Using Same Downhole - In one aspect, a device is provided that in one configuration includes a member including a metallic foam and a sealing material coupled to the metallic foam. The sealing material may be in, on or coated on the metallic foam member. | 04-19-2012 |
20120152562 | Apparatus and Method for Controlling Fluid Flow From a Formation - In one aspect, an apparatus for controlling fluid flow between a formation and a tubular is provided, wherein the apparatus includes a retrievable communication device configured to be conveyed to a selected location in the tubular downhole. The apparatus also includes a control node configured to communicate with the retrievable communication device at the selected location, a flow control device coupled to and controlled by the control node and a sensor coupled to the control node, wherein the sensor and flow control device are downhole of the control node. | 06-21-2012 |
20120217013 | HYDRAULIC FRACTURE DIVERTER APPARATUS AND METHOD THEREOF - A downhole apparatus positionable along a pipe string in a wellbore. The apparatus including a tubular structure having an outermost diameter greater than an outer diameter of an adjacent portion of the pipe string. A first end face facing a flow path in the wellbore, and at least one indentation or protuberance provided on an outer surface of the tubular structure. The at least one indentation or protuberance arranged to cause particulates in slurry within the flow path to collect and remain in a vicinity of the tubular structure. A method of diverting fracturing treatments in a wellbore is also included. | 08-30-2012 |
20120234547 | HYDRAULIC FRACTURE DIVERTER APPARATUS AND METHOD THEREOF - An apparatus positionable along a downhole string. The apparatus includes a flexible structure retained on a surface of the string in a first condition. The flexible structure movable by a flow to substantially fill an annular space between the string and a radially positioned structure in a second condition. A method of diverting fracturing treatments in a wellbore is also included. | 09-20-2012 |
20120247761 | Apparatus and Method for Completing Wells Using Slurry Containing a Shape-Memory Material Particles - In aspects, the present disclosure provides a method of performing a wellbore operation, which in one embodiment includes supplying a mixture containing a fluid and shape memory particles of a first size into a selected region in the wellbore, retaining the shape memory particles of the first size in the selected region while expelling the fluid from the selected region, and activating the shape memory particles retained in the selected region to cause them to expand to attain a second shape to fill the selected region with shape memory particles having the second shape. | 10-04-2012 |
20120305253 | SEALING DEVICES FOR SEALING INNER WALL SURFACES OF A WELLBORE AND METHODS OF INSTALLING SAME IN A WELLBORE - Sealing devices for use in a wellbore to seal a leak path through an inner wall surface of the wellbore comprise a mandrel, an expandable element, and a shape deforming sealing element. Expansion or inflation of the expandable element moves the shape deforming sealing element from its run-in shape to its set shape. A stimulus, such as a change in temperature, acts upon the shape deforming sealing element facilitating the shape deforming sealing element changing shape. Removal of the stimulus causes the shape deforming sealing element to remain in the set shape. Thereafter, the mandrel and expandable element can be removed to leave only the shape deforming sealing element within the wellbore to seal the leak path. | 12-06-2012 |
20130020071 | FRANGIBLE SLIP FOR DOWNHOLE TOOLS - Slip members for use with downhole tools comprise a body formed of a first or body material and one or more hard material elements formed of a second or element material. The element material is harder than the body material. The hard material element is disposed through the body and in communication with a first surface and a second surface of the body, the second surface being disposed opposing the first surface. During manufacturing of the slip members, the hard material element may extend outwardly from one or both of the first and second surfaces. After manufacturing, the hard material element can be shaped to provide a gripping member. | 01-24-2013 |
20130032343 | PERMEABLE MATERIAL COMPACTING METHOD AND APPARATUS - A permeable material compacting method includes, positioning a portion of at least one elongated member within the interior of a tubular, moving a portion of the at least one elongated member through the interior of the tubular, moving a permeable material through the interior of the tubular with the portion of the at least one elongated member, and radially compacting the permeable material as the permeable material passes through the interior of the tubular. | 02-07-2013 |
20130032431 | SYSTEM AND METHOD FOR DISSIPATION OF AN EFFECT OF A TUBE WAVE - A tube wave reduction system for a borehole includes a tubular member. One or more openings in the tubular member. A dissipater in fluid communication with the one or more openings. Also included is a method for reducing an effect of a tube wave. | 02-07-2013 |
20130043041 | SELECTIVELY DEGRADABLE PASSAGE RESTRICTION - An actuation system and method, the system including a tubular defining a passage, and an assembly disposed with the tubular, the assembly including a restriction operatively arranged to receive a restrictor for enabling actuation of the assembly, the restriction including a degradable material with a protective layer thereon, the degradable material degrading upon exposure to a fluid in the passage and the protective layer isolating the degradable material from the fluid. | 02-21-2013 |
20130081825 | Apparatus and Methods Utilizing Nonexplosive Energetic Materials for Downhole Applications - In one aspect, a method of method of performing a wellbore operation is disclosed that in one embodiment may include: providing a device that includes a non-explosive energetic material configured to disintegrate when subjected to a selected energy; placing the device at a selected location in the wellbore to perform a selected function; and subjecting the device to the selected energy to disintegrate the device in the wellbore after the device has performed the selected function. In another aspect an apparatus for use in a wellbore is disclosed that in one embodiment may include a device placed in the wellbore at a selected location, wherein the device includes a non-explosive energetic material configured to disintegrate when subjected to a selected energy, and a source of the selected energy configured to subject the device to the selected energy in the wellbore to disintegrate the device. | 04-04-2013 |
20130146291 | Ball Seat Milling and Re-fracturing Method - A well that has a plurality of sliding sleeves used to originally fracture multiple zones with balls of increasing size dropped on balls seats to sequentially open ports for fracturing in a direction toward the well surface is refractured. The method involves using a bottom hole assembly (BHA) that has a fluid motor driven mill that mills out ball seats and has with it a ported sub and a resettable packer. Once the lowermost ball seat is milled out a ball is dropped into the BHA to isolate the fluid motor and open a ported sub below a resettable packer. The dropped ball also enables a collet to latch an open sleeve to give a surface signal that the BHA is located properly for packer deployment so that the refracturing can begin through the coiled tubing string that can support the BHA or in a surrounding annular space. | 06-13-2013 |
20130147120 | Continuous Backup Assembly for High Pressure Seals - An extrusion barrier assembly for high pressure and temperature applications for a sealing element incorporates a backing member between the sealing element and a multi-row petal type backup ring assembly. The surface irregularities of the offset petals are distributed through the backing member so that stress concentration locations at the petal transitions between rows are diffused through the backing member to avoid or minimize the tendency of the petals to stress crack at row to row transitions. The backing member is formed from spirally wound strip of sheet material that can be coated to promote relative sliding of overlapping layers. The assembly can be temporarily bonded to retain its shape with adhesive that releases under expected well conditions when the packer or bridge plug is set. | 06-13-2013 |
20130186625 | Refracturing Method for Plug and Perforate Wells - The method of the present invention deploys CEM into the existing perforations to seal them and then using a BHA that isolates a portion of the wellbore to deliver a material that removes the CEM at a predetermined rate so that the BHA can be used to refracture the recently opened perforation. Additional new perforations can be made and fractured during the process. | 07-25-2013 |
20130213665 | Apparatus Including Water-Soluble Material for Use Downhole - In one aspect, a device for use downhole is provided that in one embodiment includes a member having a composite material reinforced with a water-soluble material. In another aspect a method of performing an operation in a wellbore is disclosed that in one embodiment includes placing a device at a selected location in the wellbore, which device includes a member having a composite material reinforced with a water-soluble material, performing the operation and allowing the water-soluble material to dissolve at least partially in the wellbore. | 08-22-2013 |
20130277044 | Frac Plug Body - A frac plug mandrel assembly has an inner core that permits flow that is surrounded by a thin wall tube that distributes compressive loading, such as that applied by the set sealing element to the core. The core is a cylindrically shaped insert for inside the tube and allows flow until a ball or plug is landed on a seat to close off the flow through the core. The core can have a star pattern with a series of radially extending segments from a solid hub or a cylindrical shape of a honeycomb or other porous structure that has the requisite strength to resist collapse from compressive loading of the set sealing element while still allowing sufficient flow area for fluid displacement. | 10-24-2013 |
20140014339 | DISINTEGRABLE DEFORMATION TOOL - A deformation system, including a deformable member and a tool operatively arranged to deform the member due to actuation of the tool from a first set of dimensions at which the deformable member is positionable with respect to a structure to a second set of dimensions at which the deformable member engages with the structure. The tool at least partially comprises a disintegrable material responsive to a selected fluid. A method of operating a deformation system is also included. | 01-16-2014 |
20140048251 | Removable Fracturing Plug of Particulate Material Housed in a Sheath Set by Expansion of a Passage through the Sheath - The removable plug features a solid material that is housed in a porous container that has its shape changed to transition from the run in shape to the set shape. A swage is moved through a passage in the container to enlarge the passage and move the container to a borehole wall. The passage is then closed such as with a flapper valve or by moving in a mandrel into the expanded passage and lodging the mandrel in the expanded passage. Various release techniques are described. | 02-20-2014 |
20140048252 | Removable Fracturing Plug of Particulate Material Housed in a Sheath Set by Relative End Movement of the Sheath - The removable plug features a solid material that is housed in a porous container that has its shape changed to transition from the run in shape to the set shape. A running string and setting tool that creates relative movement deliver the plug and pull on its lower end while holding the top stationary against a backing plate. The container is pulled into itself as the radial dimension grows for the set. There can be a mandrel that remains in position and can lock to the backing plate or alternatively there can be no mandrel or a removable mandrel. The porous container can be removed in a variety of ways to let the solid material escape to be removed with fluid circulating in the wellbore. Alternatively the mandrel can be undermined to let the solid material escape for recovery. | 02-20-2014 |
20140054043 | Resilient Foam Debris Barrier - A space filler material is used to prevent accumulation of debris that could later foul the operation of adjacent moving parts. In one application a void space that is subsequently closed by actuated parts is initially filled with a material that is highly compressible and has voids that allow it to compress without undue resistance to part movement when the void volume is reduced. Ideally, the pores or voids in the material itself are small enough to keep most if not all the debris from entering and making the space filling material too rigid to collapse under part movement. In an alternative application, the material can be in an annular space such as a seal bore and it can keep debris from getting past the seal bore while allowing hydrostatic pressure across itself thereby helping it to maintain its position until moved such as by shifting of an inner string to which it is attached. | 02-27-2014 |
20140262251 | Method for Inducing and Further Propagating Formation Fractures - Fractures are induced from lobe shaped inflatable members disposed at different axial locations along a string with frac ports in the circumferential gaps between the lobes. The lobes are inflated by landing a ball on a seat on a sleeve that is initially shifted enough to expose a fill port on each lobe. The lobes are inflated to a pressure that initiates fractures in the formation as the lobes extend. Further raising the pressure induces the sleeve to move a second time to open frac ports. The annulus can be cemented and fracturing can penetrate the cement to further propagate the initiated fractures from lobe inflation. The process is repeated at different levels until the zone of interest is completed. Sensors can relay information by telemetry techniques as to the onset of fractures or other well conditions. The sleeve for the frac ports can be moved in a variety of ways without intervention tools. | 09-18-2014 |
20140318808 | Fracturing Multiple Zones with Inflatables - One or more inflatables are used to initiate fractures in a formation. The onset of fractures after inflation to a predetermined pressure also results in damage to the inflatable and the ability to follow up the stress that initiated the fracture with high flow at high pressure to further propagate the initiated fractures at a location close to their origin. In another variation the inflatable can have openings that are small enough to allow inflation to initiate the fractures and yet continue to allow fluid flow through the openings to propagate the fractures. In yet another variation sliding sleeves with ball seats can be sequentially operated to inflate to fracture followed by opening an adjacent port to propagate. | 10-30-2014 |
20140345877 | SELECTIVELY DEGRADABLE PASSAGE RESTRICTION - An actuation system and method, the system including a tubular having a passage, and an assembly disposed with the tubular. The assembly includes a degradable restriction, the restriction only partially blocking the passage prior to being degraded. The assembly is configured to receive and prevent further movement of a restrictor through the tubular prior to the restriction being degraded. The assembly is further configured to release the restrictor when the restriction is degraded. | 11-27-2014 |
20150021041 | SETTING ASSEMBLY AND METHOD THEREOF - A setting assembly including a settable member. A housing including a chamber and a setting material disposed in the chamber and having a first phase of matter and a second phase of matter. The setting material occupying a greater volume in the second phase than in the first phase. The setting material arranged to exert a setting force on the settable member during transition of the setting material from the first phase to the second phase. Also included is a method of setting a settable member. | 01-22-2015 |
20150027709 | NON-BALLISTIC TUBULAR PERFORATING SYSTEM AND METHOD - A non-ballistic tubular perforating system includes a tubular having a wall with perforations therethrough and at least one radially extendable member positioned radially of the perforations configured to displace cement radially of the tubular and configured to radially extend prior to pumping of the cement. | 01-29-2015 |