# US 2015/0101795 A1 · Downhole packer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2015/0101795 A1 - Document ID: US20150101795A1 - Status: Published application - Kind: A1 - Application number: 14/050,751 - Filed: 2013-10-10 - Published: 2015-04-16 - Earliest claimed: 2013-10-10 - Assignees: Thru Tubing Solutions, Inc. - Inventors: Brock Watson; Roger Schultz; Andy Ferguson; Mark Britton - Web page: https://patentgrep.com/patent/US20150101795A1 ## CPC - E21B 33/1294: {characterised by a valve, e.g. a by-pass valve} - E21B 23/006: {"J-slot" systems, i.e. lug and slot indexing mechanisms} - E21B 33/12: Packers; Plugs (used for cementing E21B33/134, E21B33/16) - E21B 33/1291: {anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks (E21B33/1295 takes precedence)} - E21B 34/06: in wells - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A packer having at least two or more areas of relative rotation. The packer also incorporates a jet port, a highly debossed mandrel and/or a J-pin rotatably disposed within a drag block assembly for continuously and redundantly engaging a J-slot area disposed in the mandrel. The areas of relative rotation can be between the mandrel and piping above the packer, the drag block assembly and the mandrel, and the drag block assembly and the J-pin. ## Claims ### Claim 1 A packer, the packer comprising: a packer operationally supported by downhole piping for use in a wellbore, the packer having three or more areas of relative rotation with respect to the downhole piping or various parts of the downhole tool. ### Claim 2 (canceled) ### Claim 3 (depends on 1) The packer of claim 1 wherein the packer further comprises: a mandrel supported by the downhole piping; at least one packer element disposed around a portion of the mandrel for hydraulically sealing an upper area in a casing from a lower area in the casing; a wedge element disposed around a portion of the mandrel adjacent to the at least one packer element; at least one slip element disposed around the mandrel adjacent to the wedge element; and a drag block assembly disposed around a portion of the mandrel to frictionally engage the casing. ### Claim 4 (depends on 3) The packer of claim 3 wherein two of the areas of relative rotation are selected from the group consisting of rotation of the mandrel relative to the downhole piping and rotation of the drag block assembly relative to the mandrel. ### Claim 5 (depends on 3) The packer of claim 3 further comprising a J-pin rotatably disposed within the drag block assembly. ### Claim 6 (depends on 5) The packer of claim 5 wherein the third area of relative rotation is rotation of the J-pin relative to the drag block assembly. ### Claim 7 (depends on 3) The packer of claim 3 wherein the mandrel includes a plurality of debossed areas to reduce places where sand can accumulate and prevent operation of the packer, a J-slot area disposed on the mandrel for allowing continuous and redundant movement of a J-pin around the mandrel and a plurality of holes disposed in the side of the mandrel. ### Claim 8 (depends on 3) The packer of claim 3 further comprising a jet port disposed therein above the at least one packer element to circulate fluid outside the packer and above the at least one packer element to prevent sand accumulation during perforating and fracturing operations when the packer is in a set position, the jet port in fluid communication with the downhole piping. ### Claim 9 (depends on 8) The packer of claim 8 wherein the jet port is disposed in a top sub of the packer, the top sub having a first interior portion in fluid communication with the downhole piping, a second interior portion in fluid communication with an area in the casing below the at least one packer, and a fluid blocking member disposed therebetween. ### Claim 10 (depends on 3) The packer of claim 3 further comprising a check valve to permit pressurized fluid to flow from below the at least one packer element to above the at least one packer element when pressure of fluid below the at least one packer element gets a predetermined amount higher than the pressure of fluid above the at least one packer element. ### Claim 11 (depends on 10) The packer of claim 10 wherein the check valve is a ball check valve and the packer has a hole disposed therein for permitting fluid passing through the check valve to exit the packer. ### Claim 12 (depends on 3) The packer of claim 3 further comprising an unloader valve that permits fluid to flow through the packer and out passageways in the unloader valve when the packer is in a running position but is closed when the packer is in a set position. ### Claim 13 (depends on 1) The packer of claim 1 wherein the downhole piping is coiled tubing. ### Claim 14 A packer, the packer comprising: a mandrel rotatably supported by downhole piping during operation of the packer in a wellbore; at least one packer element disposed around a portion of the mandrel for hydraulically sealing an upper area in a casing from a lower area in the casing; a wedge element disposed around a portion of the mandrel adjacent to the at least one packer element; at least one slip element disposed around the mandrel adjacent to the wedge element; a drag block assembly rotatably disposed around a portion of the mandrel to frictionally engage the casing; and a J-pin rotatably disposed within the drag block assembly for engaging a J-slot area disposed in the mandrel. ### Claim 15 (depends on 14) The packer of claim 14 further comprising a jet port disposed therein above the at least one packer element to circulate fluid outside the packer and above the at least one packer element to prevent sand accumulation during fracturing operations when the packer is in a set position, the jet port in fluid communication with the downhole piping. ### Claim 16 (depends on 15) The packer of claim 15 wherein the jet port is disposed in a top sub of the packer, the top sub having a first interior portion in fluid communication with the downhole piping, a second interior portion in fluid communication with an area in the casing below the at least one packer, and a fluid blocking member disposed therebetween. ### Claim 17 (depends on 14) The packer of claim 14 wherein the mandrel includes a plurality of debossed areas to reduce places where sand can accumulate and prevent operation of the packer and a plurality of holes disposed in the side of the mandrel. ### Claim 18 (depends on 17) The packer of claim 17 wherein at least 50 percent of the mandrel's cylindrical surface area is debossed. ### Claim 19 A packer, the packer comprising: a mandrel supported by downhole piping; at least one packer element disposed around a portion of the mandrel for hydraulically sealing an upper area in a casing from a lower area in the casing; a wedge element disposed around a portion of the mandrel adjacent to the at least one packer element; at least one slip element disposed around the mandrel adjacent to the wedge element; a drag block assembly disposed around a portion of the mandrel to frictionally engage the casing; and a jet port disposed therein above the at least one packer element to circulate fluid outside the packer and above the at least one packer element to prevent sand accumulation during fracturing operations when the packer is in a set position, the jet port in fluid communication with the downhole piping. ### Claim 20 (depends on 19) The packer of claim 19 wherein the jet port is disposed in a top sub of the packer, the top sub having a first interior portion in fluid communication with the downhole piping, a second interior portion in fluid communication with an area in the casing below the at least one packer, and a fluid blocking member disposed therebetween, the jet port in fluid communication with the first interior portion of the top sub. ### Claim 21 (depends on 19) The packer of claim 19 wherein the jet port is an abrasive resistant jet port for handling abrasive fluids used in perforating and fracturing operations. ### Claim 22 (depends on 1) The packer of claim 1 wherein the areas of relative rotation can rotate 360° in at least one direction. ### Claim 23 (depends on 14) The packer of claim 14 wherein the mandrel is rotatable 360° relative to the downhole piping. ### Claim 24 (depends on 7) The packer of claim 7 wherein the plurality of holes disposed in the side of the mandrel are located in the plurality of debossed areas. ### Claim 25 (depends on 17) The packer of claim 17 wherein the plurality of holes disposed in the side of the mandrel are located in the plurality of debossed areas.