Class / Patent application number | Description | Number of patent applications / Date published |
166135000 | Flow stopping type, e.g., plug | 27 |
20090071643 | DOWNHOLE VALVE FOR PREVENTING ZONAL CROSS-FLOW - A flow control valve for use in a downhole completion tubing string, where the control valve prevents cross flow between producing zones. The control valve comprises a housing forming a plenum therein, a tubular member having a perforated end disposed in the housing, and a plug assembly disposed in the end of the tubular member having perforations. The plug assembly comprises a shaft reciprocatingly disposed in the tubular member. Produced fluids flow within the tubular member, through the perforations to the plenum, and outside of the control valve through corresponding perforations formed in the disk and housing. When pressure in the completion tubing string exceeds produced fluid pressure, the plug will close thereby preventing fluid flow from the completion tubing to the tubular member. | 03-19-2009 |
20100000727 | Apparatus and method for inflow control - A wellbore servicing apparatus comprising an inflow control assembly having an inflow flowbore and a stimulation assembly having a stimulation flowbore is disclosed. A method of servicing a wellbore comprising placing a stimulation assembly in the wellbore and placing at least one inflow control assembly in the wellbore, the at least one inflow control assembly comprising a selectively adjustable inflow sleeve, is also disclosed. A method of servicing a wellbore comprising opening a plurality of jetting nozzles in a production string located in a wellbore adjacent a formation, jetting a treatment fluid through the nozzles and perforating and/or fracturing the formation, at least partially closing the plurality of jetting nozzles, opening a plurality of inflow ports to allow fluid to flow from the formation into the production string, and filtering the fluid prior to the fluid entering the inflow ports is disclosed. | 01-07-2010 |
20110036562 | WELL PLUG - A well plug having a flexible expandable sealing ( | 02-17-2011 |
20110284213 | Device used in the form of a packer or a temporary plug - This invention relates to geophysical research techniques, more particularly, to geophysical well logging methods, and may be used to seal near-wellbore formation during logging activities. | 11-24-2011 |
20110290473 | CONFIGURABLE INSERTS FOR DOWNHOLE PLUGS - A configurable insert for a downhole tool. The configurable insert can have a body having a bore formed therethrough, at least one shear groove disposed on the body, wherein the body separates at the shear groove when exposed to a predetermined force, applied by a threadably engaged component therewith, at least one shoulder disposed within the bore, the shoulder formed by a transition between a larger inner diameter and a smaller inner diameter of the bore, wherein the shoulder is adapted to receive one or more impediments at least partially within the bore, and one or more threads disposed on an outer surface of the body for connecting the body to a downhole tool. | 12-01-2011 |
20120000648 | Shape Memory Cement Annulus Gas Migration Prevention Apparatus - The annular space around a tubular string has a shape memory material that is in a low profile configuration for run in. After the desired position is obtained and the annulus has cement delivered to fill the annular space, the shape memory device is triggered to revert to an original shape that spans the annulus to seal the tubular and the wellbore sides of the annular space against gas migration through the cement. The structures can have varying run in shapes and can also have original shapes that when the material is triggered will act to displace cement to enhance its compaction on the tubular or the wellbore wall. Combinations of shape memory alloys and polymers are also contemplated to enhance the seal against gas migration. | 01-05-2012 |
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 |
20120118561 | CONFIGURABLE INSERTS FOR DOWNHOLE PLUGS - A configurable insert for a downhole tool. The configurable insert can have a body having a bore formed therethrough, at least one shear groove disposed on the body, wherein the body separates at the shear groove when exposed to a predetermined force, applied by a threadably engaged component therewith, at least one shoulder disposed within the bore, the shoulder formed by a transition between a larger inner diameter and a smaller inner diameter of the bore, wherein the shoulder is adapted to receive one or more impediments at least partially within the bore, and one or more threads disposed on an outer surface of the body for connecting the body to a downhole tool. | 05-17-2012 |
20120292014 | Packer Supported on Bonded Connection to a Surrounding Tubular - A packer or bridge plug has slips that bind to the surrounding tubular with an adhesive bond. The tubular wall is not penetrated but a roughening of the target location in the tubular can help the bond material to adhere to support the packer or bridge plug. A removable cover can overlay the surface to be bonded to the tubular and the cover can come off in a variety of techniques before the members to be bonded are radially extended. An acrylic adhesive can be the bonding agent. The packer or bridge plug can be made of mostly or entirely non-metallic materials to facilitate mill out. | 11-22-2012 |
20130180705 | EXPANDING ELASTOMER/PLUG DEVICE FOR SEALING BORE HOLE AND PIPELINES - The present invention relates to a downhole plug with an expandable elastomeric packer ( | 07-18-2013 |
20130240200 | DECOMPOSABLE PUMPDOWN BALL FOR DOWNHOLE PLUGS - A plug for isolating a wellbore. The plug can include a body having a first end and a second end, at least one malleable element disposed about the body, at least one slip disposed about the body, at least one conical member disposed about the body, and an insert secured to an inner surface of the body proximate the second end of the body. The insert can be adapted to receive a setting tool that enters the body through the first end thereof. The insert can include a passageway extending therethrough. The insert can be adapted to release the setting tool when exposed to a predetermined axial force, thereby providing a flow passage through the insert and the body. At least one of the body and the insert can be adapted to receive an impediment that restricts fluid flow in at least one direction through the body, wherein the impediment comprises one or more decomposable materials. | 09-19-2013 |
20130240201 | DECOMPOSABLE IMPEDIMENTS FOR DOWNHOLE PLUGS - A configurable insert for a downhole tool. The configurable insert can include a body having a bore that is blocked by an impediment such that fluid flow is prevented through the body in both axial directions. The impediment can include a decomposable material. The configurable insert can also include at least one shear element disposed on the body for connecting to a setting tool. The shear element can be adapted to shear when exposed to a predetermined force, thereby releasing the setting tool from the body. The configurable insert can also include one or more threads disposed on an outer surface of the body below the at least one shear element for connecting the body to the downhole tool. | 09-19-2013 |
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 |
20140060813 | EXPANDABLE FRACTURE PLUG SEAT APPARATUS - An annular seat structure, for use in subterranean well stimulation operations, is operative in conjunction with associated expansion control structure to permit a predetermined number of fracture plug members to axially pass therethrough. In an illustrated embodiment thereof, the annular seat structure is movable between a retracted position having a first interior diameter, and a resiliently expanded position having a second, larger interior diameter. The seat structure has an annular array of rigid ring segments interdigitated with annular gaps that receive radially outwardly projecting portions of an annular resilient liner secured to radially inner surfaces of the rigid ring segments, the outwardly projecting liner portions being secured to circumferentially facing surfaces of the rigid ring segments. An annular spring member coaxially circumscribes the rigid ring segment array, is received in notches formed in the rigid segments, and resiliently biases the seat structure toward its retracted position. | 03-06-2014 |
20140096949 | DRILL HOLE PLUG SYSTEM - The present device relates to a drill hole plug system, and more specifically, to a plug used to seal off rods or casings left in the ground after exploration diamond drilling. The present drill hole plug system is primarily comprised of a basket, connected to a basket adapter, which is in turn threaded onto a primary module. The basket initially locks the drill hole plug system into place, and the primary module is subsequently rotated, such that corresponding parts move forward and anchor the primary module into place within the casing. Afterwards, continued rotation of the primary module engenders a lead-in ring to compress a sealant, expanding said sealant within the drill hole plug system and effectively sealing it off. The drill hole plug system can also incorporate optional modular add-ons, such as a check valve and a shut-off valve. | 04-10-2014 |
20140209294 | HIGH STRENGTH CONNECTION FOR SLEEVE AND MANDREL AND RELATED METHODS - Device, system, and method to adhesively bond a sleeve to a mandrel are disclosed. The sleeve and the mandrel may be used as part of frac plug or a bridge plug in oil and gas applications. The bonded adhesive connection with grooves is strengthened to reliably achieve higher levels of lap shear strengths than attainable by conventional means. | 07-31-2014 |
20150007980 | Combination plug and setting tool with centralizers - A series of down hole plugs are made from a common subassembly including, in some embodiments, a mandrel, a slips/seal section, a setting assembly and a mule shoe. To make the flow back plug, a ball check is placed in the mule shoe. To make the bridge plug, an obstruction is inserted in the mule shoe. To make the ball drop plug, the mule shoe is left unobstructed so any ball dropped in a well seats in a tapered inlet to the mandrel. To make a plug with a disintegratable check, a ball dropped in the well is of a type that disintegrated in frac liquids. Another embodiment is an improved adapter sleeve used on conventional setting tools. | 01-08-2015 |
20150013964 | TREATMENT PLUG, METHOD OF ANCHORING AND SEALING THE SAME TO A STRUCTURE AND METHOD OF TREATING A FORMATION - A treatment plug includes, an anchor runnable and settable within a structure having, at least one slip movably engaged with the anchor to move radially into engagement with the structure in response to longitudinal movement of the at least one slip relative to surfaces of the treatment plug, at least one seal having a deformable metal member configured to radially deform into sealing engagement with the structure in response to being deformed radially outwardly, and a seat that is sealingly receptive to a plug. | 01-15-2015 |
20150053395 | Seal Element - A seal element for sealing a conduit is described. The seal element comprises a frusto conical portion and a first lip extending from an external edge of the frusto conical portion, the lip being adapted to be pivoted into engagement with a conduit surface. In a described embodiment, two seal elements are provided on a plug for sealing a conduit, the seal elements facing in opposite directions to seal from above and below. | 02-26-2015 |
20150060047 | ELASTOMERIC BALL SEAT FOR A FRAC PLUG - A composite frac plug ( | 03-05-2015 |
20150075773 | Oil Well Plug and Method of Use - A frac plug is configured to seal a bore of a pipe of a downhole well. The frac plug comprises a generally cylindrical plug member comprising a glass body. The glass body may be tempered or high-compression glass. The plug member has axial opposite ends and a length extending between the axial ends. The plug member has an outer diameter surface extending along the length. The outer diameter surface is tapered. The frac plug further comprises a seal of compressible material extending substantially around the plug member outer diameter. The seal has opposite axial ends generally corresponding to the axial ends of the plug member. The seal is movable axially relative to the plug member outer diameter surface. The seal is compressible against the plug member outer diameter surface and expandable radially outward to engage the bore of the pipe. | 03-19-2015 |
20150075774 | Frac Plug With Anchors and Method of Use - A frac plug is configured to seal a pipe of a downhole well. The frac plug includes a cylindrical plug member comprising a glass body made of a tempered or high-compression glass. The plug member has axial opposite ends with a tapered outer diameter surface extending along its length between the ends. The frac plug further includes a seal of compressible material extending substantially around the plug member outer diameter. The seal has opposite axial ends corresponding to the axial ends of the plug member. The seal is movable axially relative to, and compressible against, the plug member outer diameter surface, thus allowing the seal expand radially outward to engage the bore of the pipe. The frac plug is anchored in the pipe bore with clamping portions on axially opposite ends of the plug member. The clamping portion may include bore engagement portions that are arcuate or radially expanding fingers. | 03-19-2015 |
20150308217 | DOWNHOLE TOOL AND METHOD OF USE - A downhole tool useable for isolating sections of a wellbore, the downhole tool having a mandrel made of composite material; a sealing unit disposed about the mandrel and in engagement with a seal element also disposed about the mandrel, wherein the sealing unit comprises a resilient portion and a deformable portion, wherein the deformable portion further comprises an outer surface, an inner surface, a top, and a bottom, and wherein a depth of at least one groove extends from the outer surface to the inner surface, and wherein the at least one groove is formed between about the bottom to about the top. | 10-29-2015 |
20150354313 | DECOMPOSABLE EXTENDED-REACH FRAC PLUG, DECOMPOSABLE SLIP, AND METHODS OF USING SAME - A plug for hydraulic fractionation can have a first driver; a first pressure arm rotatably connected to the first driver; a second driver; a second pressure arm rotatably connected to the second driver; and a first slip rotatably connected to the first pressure arm and rotatably connected to the second pressure arm. The frac plug can also have a third driver; a third pressure arm rotatably connected to the third driver; a fourth driver; a fourth pressure arm rotatably connected to the fourth driver; and a second slip rotatably connected to the third pressure arm and rotatably connected to the fourth pressure arm. Preferably at least a portion of the frac plug is a material formulated to decompose in one to twenty-four hours under typical wellbore conditions. Moreover, a decomposable slip is provided for use with any frac plug known to one of ordinary skill. | 12-10-2015 |
20150376978 | MILLABLE PLUGGING DEVICE - The present invention relates to a millable plugging device for use in a well pipe. The device includes an inner mandrel and an outer housing provided radially outside at least parts of the inner mandrel. A sealing assembly is provided radially outside the inner mandrel, where the sealing assembly is configured to be brought from a run state to a set state by a relative axial displacement between the inner mandrel and the outer housing. The millable plugging device has a first center axis and the second mandrel section has a second center axis which is displaced parallel in relation to the first center axis. Rotation of the inner mandrel in the set state is bringing a third mandrel section of the mandrel to a locked state, in which further rotation of the inner mandrel is prevented. | 12-31-2015 |
20160032682 | Packer Bridge Plug with Slips - The present invention is to a packer plug that can be tripped into a particular location in a well bore and set using slips rings and packer elements. The plug presents little flow resistance because of its wide inner diameter throat through the mandrel. A ball seat at an upper end allows for the sealing of the interior passage. The ball can be flowed upward or dissolved to remove the seal and allow flow through the plug. A slip ring can be used in place of slips to reduce the overall length of the packer plug. | 02-04-2016 |
20160376869 | Self-Removing Plug for Pressure Isolation in Tubing of Well - A downhole apparatus for use in a tubular include a mandrel, a first slip, a cone, and a seal element. The mandrel, which can be permanent or temporary, has a first end shoulder. The first slip is disposed on the mandrel adjacent the first end shoulder, and the cone is disposed on the mandrel adjacent the first slip. The cone is movable relative to the first end shoulder to engage the first slip toward the tubular. The seal element is disposed on the mandrel adjacent the cone. At least a portion of the seal element is composed of a dissolvable metallic material and is expandable outward from the mandrel. The expanded portion of the seal element forms a metal seal against the tubular and seals off fluid communication in the annular space between the seal element and the tubular. | 12-29-2016 |