Patents by Inventor Dwayne P. Terracina
Dwayne P. Terracina has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10900306Abstract: A landing tool includes a body with an inner surface. A receiving groove is located on the inner surface and includes a first groove portion and a second groove portion separated by a tab. At least a portion of the tab is recessed from the inner surface of the landing tool. At least a portion of the second groove portion may further be recessed from one or both of the inner surface of the landing tool or an inner surface of the tab.Type: GrantFiled: November 16, 2017Date of Patent: January 26, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Philip G. Trunk, Tommy G. Ray, Jeremy O'Neal, Dwayne P. Terracina
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Patent number: 10669793Abstract: A latching dog includes a dog body, at least one engagement arm protrudes from an outer radial surface of the dog body in a transverse direction, and at least one retention fin protrudes from the dog body in a longitudinal direction. The at least one retention fin maintains the latching dog engaged with a housing surface to keep the latching dog at a desired axial and/or rotational position while milling the housing and latching dog.Type: GrantFiled: November 1, 2017Date of Patent: June 2, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Baozhong Yang, Dwayne P. Terracina, Tommy G. Ray, Jeremy O'Neal
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Publication number: 20180155999Abstract: A landing tool includes a body with an inner surface. A receiving groove is located on the inner surface and includes a first groove portion and a second groove portion separated by a tab. At least a portion of the tab is recessed from the inner surface of the landing tool. At least a portion of the second groove portion may further be recessed from one or both of the inner surface of the landing tool or an inner surface of the tab.Type: ApplicationFiled: November 16, 2017Publication date: June 7, 2018Inventors: Philip G. Trunk, Tommy G. Ray, Jeremy O'Neal, Dwayne P. Terracina
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Publication number: 20180135370Abstract: A latching dog includes a dog body, at least one engagement arm protrudes from an outer radial surface of the dog body in a transverse direction, and at least one retention fin protrudes from the dog body in a longitudinal direction. The at least one retention fin maintains the latching dog engaged with a housing surface to keep the latching dog at a desired axial and/or rotational position while milling the housing and latching dog.Type: ApplicationFiled: November 1, 2017Publication date: May 17, 2018Inventors: Baozhong Yang, Dwayne P. Terracina, Tommy G. Ray, Jeremy O'Neal
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Publication number: 20160032710Abstract: A downhole tool is disclosed for measuring wellbore geometry. The downhole tool may include a body with a bore extending at least partially therethrough. The body may include a radial recess. An arm may be movably coupled to the body at a first end portion of the arm. The arm may be within the radial recess in a retracted position and be pivotable in a radially-outward direction relative to the body to an expanded position. A measurement device coupled to the body may measure the pivoting motion of the arm. A piston coupled to the body may be movably coupled to a second end portion of the arm, and the piston may respond to changes in hydraulic pressure to pivot the arm between the retracted position and the expanded position.Type: ApplicationFiled: March 13, 2014Publication date: February 4, 2016Applicant: SMITH INTERNATIONAL, INC.Inventors: Jianbing Hu, James Layne Larsen, Tommy G. Ray, Dwayne P. Terracina, Rui Gao, Jennifer L. Pereira, Weixiong Wang, Ming Zhang, Zhenbi Su, Baozhong Yang, Siqi Xu, Sudarsanam Chellappa, Vishal Saheta, Robert Utter
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Patent number: 9145740Abstract: A drill bit for drilling a borehole in an earthen formation includes a first blade having a cutter-supporting surface. The cutting profiles of cutting faces of primary cutter elements mounted to the cutter-supporting surface define an outermost cutting profile Po in rotated profile view. A stabilizing member may be included, having an end distal the cutter-supporting surface including a tip. The tip may be offset from the outermost cutting profile Po in rotated profile view.Type: GrantFiled: December 16, 2013Date of Patent: September 29, 2015Assignee: Smith International, Inc.Inventors: Bala Durairajan, Dwayne P. Terracina
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Publication number: 20150114716Abstract: Various implementations described herein are directed to a vibration tool, e.g., for use in drilling or other downhole operations. In one implementation, the vibration tool may include a housing having a bore extending therethrough. The vibration tool may also include a piston subassembly positioned inside the bore, where the piston subassembly is configured to oscillate when fluid flow inside the piston subassembly exceeds a predetermined flow rate. The vibration tool may further include a valve mechanism positioned around the piston subassembly, where the valve mechanism is configured to restrict fluid to flow inside the piston subassembly when the valve mechanism is in a closed state and configured to allow the fluid to flow from the piston subassembly to the bore when the valve mechanism is in an open state.Type: ApplicationFiled: September 26, 2014Publication date: April 30, 2015Inventors: Baozhong Yang, Tommy G. Ray, Jianbing Hu, Zhenbi Su, Dwayne P. Terracina, Xin Hu
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Publication number: 20150060144Abstract: A turbodrill having a housing having a bore extending at least partially therethrough, a rotatable shaft disposed in the housing bore and rotatable relative to the housing, the housing, the housing bore and the rotatable shaft having a common longitudinal axis; and a plurality of turbine blades disposed at least partially within the housing bore, at least one turbine blade of the plurality of turbine blades including a first blade profile disposed at a first point along a blade span and a second blade profile disposed at a second point along the blade span, the second blade profile differing from the first blade profile.Type: ApplicationFiled: August 25, 2014Publication date: March 5, 2015Inventors: Weixiong Wang, James Layne Larsen, Lijun Song, Dwayne P. Terracina
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Publication number: 20150053050Abstract: A method for manufacturing a drilling tool includes machining a cutter pocket into a tool body. The cutter pocket has at least a front planar surface, a back planar surface, a first side surface between the front and back planar surfaces, and a second side surface opposite the first side surface and between the front and back planar surfaces. Once machined, cutting elements are placed in the cutter pocket and then brazed in the cutter pocket.Type: ApplicationFiled: November 10, 2014Publication date: February 26, 2015Applicant: SMITH INTERNATIONAL, INC.Inventors: Jimykumar Prajapati, Navish Makkar, Michael James Rodgers, Robert Patrick Moore, Dwayne P. Terracina
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Patent number: 8961019Abstract: A bearing assembly comprising a frame; a rotating disc disposed in the frame, the rotating disc comprising a first set of inserts; and a fixed disc disposed in the frame, the fixed disc comprising a second set of inserts, the second set of inserts configured to interact with the first set of inserts, and a lip disposed adjacent the second set of inserts. Also, a bearing assembly comprising a frame; a rotating disc disposed in the frame, the rotating disc comprising a first set of inserts and at least one groove disposed axially above at least one of the inserts; and a fixed disc disposed in the frame, the fixed disc comprising a second set of inserts, the second set of inserts configured to interact with the first set of inserts.Type: GrantFiled: May 10, 2011Date of Patent: February 24, 2015Assignee: Smith International, Inc.Inventors: Parag Konde, Srinivas Likki, James Layne Larsen, Dwayne P. Terracina, Andrew Grebe
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Publication number: 20150014061Abstract: A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.Type: ApplicationFiled: September 26, 2014Publication date: January 15, 2015Inventors: Jian Wu, Jianbing Hu, Dwayne P. Terracina, Tommy G. Ray
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Patent number: 8881850Abstract: A drilling tool including a tool body and a cutter pocket formed in the tool body, the cutter pocket including a front planar surface, a back planar surface opposite the front planar surface, a first side surface between the front and back planar surfaces, and a second side surface opposite the first side surface and between the front and back planar surfaces is disclosed herein. A method of manufacturing a drilling tool including machining a tool body having a cutter pocket in accordance with embodiments disclosed herein, disposing a cutting element in the cutter pocket, and brazing the cutting element in the cutter pocket is disclosed.Type: GrantFiled: April 26, 2010Date of Patent: November 11, 2014Assignee: Smith International, Inc.Inventors: Jimykumar Prajapati, Navish Makkar, Michael James Rodgers, Robert Patrick Moore, Dwayne P. Terracina
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Patent number: 8863843Abstract: A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.Type: GrantFiled: May 20, 2011Date of Patent: October 21, 2014Assignee: Smith International, Inc.Inventors: Jian Wu, Jianbing Hu, Dwayne P Terracina, Tommy G Ray
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Patent number: 8783386Abstract: A drill bit for drilling a borehole in an earthen formation. In an embodiment, the bit comprises a first blade having a cutter-supporting surface. In addition, the bit comprises a plurality of primary cutter elements with cutting faces mounted to the cutter-supporting surface. The cutting profiles of the cutting faces define an outermost cutting profile Po in rotated profile view. Further, the bit comprises a stabilizing member having an end distal the cutter-supporting surface. The end includes a tip. The tip is offset from the outermost cutting profile Po in rotated profile view.Type: GrantFiled: July 1, 2010Date of Patent: July 22, 2014Assignee: Smith International, Inc.Inventors: Bala Durairajan, Dwayne P Terracina
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Patent number: 8776912Abstract: In one aspect, embodiments disclosed herein relate to a secondary cutting structure for use in a drilling assembly, the second cutting structure including a tubular body and a cutter block, extendable from the tubular body, the block including at least three rows of cutting elements. In another aspect, embodiments disclosed herein relate to drilling a borehole, the method including disposing a drilling tool assembly in the borehole, wherein the drilling tool assembly includes a primary cutting structure and a secondary cutting structure, and wherein the secondary cutting structure ahs a cutter block having at least three rows of cutting elements. The method also includes actuating the primary cutting structure, drilling a first portion of the borehole with the primary cutting structure, actuating the secondary cutting structure, and drilling a second portion of the borehole with both the primary and secondary cutting structures.Type: GrantFiled: April 26, 2010Date of Patent: July 15, 2014Assignee: Smith International, Inc.Inventors: Navish Makkar, Dwayne P. Terracina
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Patent number: 8770321Abstract: A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.Type: GrantFiled: October 7, 2013Date of Patent: July 8, 2014Assignee: Smith International, Inc.Inventors: Navish Makkar, Tommy G. Ray, Manoj Mahajan, Dwayne P. Terracina, Sameer Bhoite
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Publication number: 20140102798Abstract: A drill bit for drilling a borehole in an earthen formation. In an embodiment, the bit comprises a first blade having a cutter-supporting surface. In addition, the bit comprises a plurality of primary cutter elements with cutting faces mounted to the cutter-supporting surface. The cutting profiles of the cutting faces define an outermost cutting profile Po in rotated profile view. Further, the bit comprises a stabilizing member having an end distal the cutter-supporting surface. The end includes a tip. The tip is offset from the outermost cutting profile Po in rotated profile view.Type: ApplicationFiled: December 16, 2013Publication date: April 17, 2014Applicant: Smith International, Inc.Inventors: Bala Durairajan, Dwayne P. Terracina
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Publication number: 20140076633Abstract: Systems, methods and devices for equipping a rotatable drill string with measurement equipment. The system includes a removable carriage unit arranged and designed to be disposed within a bore of a removable section of the rotatable drill string. The removable carriage unit has measurement equipment disposed within a cavity thereof. The method includes disposing measurement equipment in the cavity of the removable carriage unit, coupling the removable carriage unit with a first end portion of the removable section of the rotatable drill string after disposing the measurement equipment in the cavity, and coupling a second end portion of the removable section with a shaft of the rotatable drill string.Type: ApplicationFiled: September 18, 2013Publication date: March 20, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: DWAYNE P. TERRACINA, BAOZHONG YANG, ZHENBI SU
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Publication number: 20140034397Abstract: A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.Type: ApplicationFiled: October 7, 2013Publication date: February 6, 2014Applicant: Smith International, Inc.Inventors: Navish Makkar, Tommy G. Ray, Manoj Mahajan, Dwayne P. Terracina, Sameer Bhoite
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Patent number: 8550188Abstract: A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.Type: GrantFiled: September 29, 2010Date of Patent: October 8, 2013Assignee: Smith International, Inc.Inventors: Navish Makkar, Tommy G. Ray, Manoj Mahajan, Dwayne P. Terracina, Sameer Bhoite