公开(公告)号：US20240117687A1

公开(公告)日：2024-04-11

申请号：US17767726

申请日：2020-10-09

申请人： SANDVIK MINING AND CONSTRUCTION TOOLS AB

发明人： John HAMMARGREN

IPC分类号： E21B17/10 ,  E21B1/00

CPC分类号： E21B17/1078 ,  E21B1/00

摘要： A drilling assembly for percussive drilling includes at least two of a drill bit, a drill rod and a guide adapter. A peripheral surface of the shoulder on the drill rod is at least partially encased in both radial and axial directions inside the mounting sleeve of the drill bit or the mounting sleeve of the guide adapter, and/or the peripheral surface of the shoulder on the guide adapter is at least partially encased in both radial and axial directions inside the mounting sleeve of the drill bit.

公开(公告)号：US11851952B2

公开(公告)日：2023-12-26

申请号：US17860712

申请日：2022-07-08

申请人： Yangtze University

发明人： Xianzhong Yi ,  Shifan Zhang ,  Guangkun Xia ,  Xinbo Zhao ,  Yanbin Wang ,  Yangchuan Ke ,  Jifang Wan ,  Yuanhua Zhou

IPC分类号： E21B1/00 ,  E21B17/042

CPC分类号： E21B1/00 ,  E21B17/042

摘要： A downhole displacement impact method and an impact drilling tool are provided, which relates to the field of drilling tools. The downhole displacement impact drilling tool includes a flow passing sleeve, a first main shaft, an impact-bearing seat, and a second main shaft that are all formed by annular structures and are connected in sequence from top to bottom. A vibration sleeve, a vibration starting seat, and an impact head are connected in sequence from top to bottom on the impact-bearing seat. The vibration sleeve is connected and fixed to the impact head through a connecting sleeve. The vibration starting seat synchronously rotates with the impact-bearing seat through a spline connection therebetween. The vibration starting seat generates an up-down periodic displacement along an axial direction of the vibration starting seat during rotating.

公开(公告)号：US20180265960A1

公开(公告)日：2018-09-20

申请号：US15918560

申请日：2018-03-12

申请人： BWT LLC

发明人： Craig Zimmerman ,  Jim Hedman ,  Jeff Hemmer

IPC分类号： C23C8/80 ,  C23C8/70 ,  C21D9/08 ,  C21D8/10 ,  C21D1/18

CPC分类号： C23C8/80 ,  C21D1/18 ,  C21D1/42 ,  C21D8/105 ,  C21D9/08 ,  C21D9/085 ,  C21D2211/001 ,  C23C8/70 ,  E21B1/00 ,  E21B17/006 ,  F16L57/06 ,  Y02P10/253

摘要： A process comprising: placing a boronizing powder composition in a metal pipe comprising a first end, a second end, an inside surface and an outside surface; heating the pipe to form a borided layer on the inside surface, and spent boronizing powder; removing the spent boronizing powder from the pipe, thereby forming an empty boronized pipe; heating the empty boronized pipe to above its austenitizing temperature, thereby forming an austenitized pipe; quenching the austenitized pipe, thereby forming a quenched pipe; tempering the quenched pipe, thereby forming a tempered pipe; and threading the tempered pipe.

公开(公告)号：US20180216430A1

公开(公告)日：2018-08-02

申请号：US15747441

申请日：2016-07-29

申请人： Globaltech Corporation Pty Ltd

发明人： Gordon Stewart ,  Raymond Hill

IPC分类号： E21B23/01 ,  E21B33/12 ,  E21B34/08

CPC分类号： E21B23/01 ,  E21B1/00 ,  E21B21/10 ,  E21B23/02 ,  E21B33/12 ,  E21B34/08 ,  E21B47/024 ,  E21B2023/008 ,  E21B2034/005

摘要： A downhole sensing device deployment control apparatus (10) includes means to control speed of the sensing device progressing within a borehole associated with a drilling operation. A mechanical, electrically powered and/or hydro-dynamic drag/damping means/device (12) can be provided as part of the control apparatus to control speed of deployment down the borehole. The drag device (12) can have a plurality of wheels or rollers to contact an internal bore of an inner pipe of a drill string. Rotation control means (24), (26) can be provided to control an amount of rotation and/or direction of rotation of the wheels or rollers relative to travel of the sensing device within the borehole. Valving (60) can be provided. A two stage (dual) flow/pressure control valve (100) can be provided. A sensing device (release 216) and downhole position latch (202) can be provided. The sensing device can be pumped into the borehole, such as by compressed air.

公开(公告)号：US09995084B1

公开(公告)日：2018-06-12

申请号：US15231727

申请日：2016-08-08

申请人： Cary Cooper ,  Travis Parr

发明人： Cary Cooper ,  Travis Parr

IPC分类号： E21B7/28 ,  E21B1/00 ,  E21B7/04 ,  E21B10/28

CPC分类号： E21B1/00 ,  E21B7/046 ,  E21B7/28 ,  E21B10/28

摘要： Disclosed is a hammer reamer that comprises similar features to prior art reamers such as cutting wheels and a product-pulling feature. An exemplary hammer reamer, however, also includes a hammer component operable to deliver a percussive cycle of an internal piston component. Notably, an internal impact surface within the head of the hammer reamer is positioned relative to the piston component in the hammer consistent with a “sweet spot” position of a drill bit used in a pilot boring configuration. Unlike a slidably engaged drill bit, however, the internal impact surface in the hammer reamer is fixed in place so that the impact surface remains in the “sweet spot” of the piston stroke range. In this way, even though the hammer reamer is being pulled back through a bore while the drill string is being retracted, the hammer component may continue to deliver percussive blows to the hammer reamer head to introduce a vibratory force that contributes to the efficiency of the reaming process.

公开(公告)号：US20180135782A1

公开(公告)日：2018-05-17

申请号：US15576113

申请日：2016-05-19

申请人： SANDVIK INTELLECTUAL PROPERTY AB

发明人： PETRI AHOLA ,  DAVID WICKSTRÖM ,  ANDREAS NORMAN

IPC分类号： F16L15/06 ,  E21B17/042

CPC分类号： F16L15/06 ,  E21B1/00 ,  E21B17/042

摘要： An elongate component, such as a drill rod or adaptor, forms part of a drill string having a shoulder contact male spigot coupling. The male spigot includes a non-threaded shank and a threaded section in which an axial length of the non-threaded shank is provided at a predetermined minimum relative to an outside diameter of the spigot at the threaded section.

公开(公告)号：US20180073300A1

公开(公告)日：2018-03-15

申请号：US15822385

申请日：2017-11-27

申请人： HARD ROCK HORIZONTAL DIRECTIONAL DRILLING PRODUCTS , INC.

发明人： Cary Cooper ,  Travis Parr

IPC分类号： E21B4/14 ,  E21B7/06 ,  E21B1/00 ,  E21B7/04

CPC分类号： E21B4/14 ,  E21B1/00 ,  E21B7/046 ,  E21B7/064

摘要： An improved leading end assembly for a HDD percussion boring system comprises a sonde housing, a percussion hammer and a tilted-face slant bit. The sonde housing body comprises a bent engagement feature and a shoe aspect that creates an asymmetrical cross section of the sonde housing. The percussion hammer is connected to the sonde housing via the bent engagement feature which is configured to position the percussion hammer on an angle relative to a longitudinal axis of the sonde housing. The tilted-face slant bit comprises a front face facet that defines a plane that is tilted relative to a plane that is perpendicular to a longitudinal axis of the bit shaft. Advantageously, embodiments of the solution do not include a bent sub component. Rather, the shoe aspect, the bent engagement feature and the front face facet collectively form an effective bend angle (as opposed to a single, abrupt bend angle imposed by a bent sub in prior art solutions).

公开(公告)号：US20180010389A1

公开(公告)日：2018-01-11

申请号：US15543302

申请日：2015-03-27

申请人： Charles Abernethy Anderson

发明人： Josh Campbell

IPC分类号： E21B1/00 ,  E21B17/07 ,  E21B4/14

CPC分类号： E21B1/00 ,  E21B4/14 ,  E21B17/07 ,  E21B21/08

摘要： Embodiments disclosed herein relate to tools capable of amplifying or dampening axial forces produced by downhole equipment. More specifically, apparatus and methodologies provide a tool for imparting amplified axial loads (e.g., a hammer sub), or, in the alternative, for dampening/reducing downhole vibrations or “noise” (e.g., a suppressor sub).

公开(公告)号：US20170267910A1

公开(公告)日：2017-09-21

申请号：US15449347

申请日：2017-03-03

申请人： Saudi Arabian Oil Company ,  Durham University ,  M-I Drilling Fluids U.K. Limited

发明人： Musarrat H. Mohammed ,  Hugh Christopher Greenwell ,  Manohara Gudiyor Veerabhadrappa ,  John Adrian Hall ,  Gasan Selman Alabedi ,  Andrew Whiting ,  Michael Hayward Hodder

IPC分类号： C09K8/32 ,  C07C51/60

CPC分类号： C09K8/32 ,  C07C51/60 ,  C07C2103/74 ,  C09K8/34 ,  C09K8/36 ,  C09K8/487 ,  C09K8/502 ,  C09K8/82 ,  C09K2208/10 ,  C09K2208/28 ,  E21B1/00

摘要： An oil-based drilling fluid and method of preparing an oil-based drilling fluid are disclosed. The oil-based drilling fluid comprising a base oil continuous phase, an aqueous discontinuous phase, and at least one rheology modifier. The at least one rheology modifier including an alkaline-earth diamondoid compound. The method of preparing the oil-based drilling fluid including mixing a base oil, at least one emulsifier, and at least one wetting agent to form a first mixture, adding and mixing at least one rheology modifier into the first mixture to form a second mixture, adding and mixing at least one fluid-loss control additive into the second mixture to form a third mixture, adding and mixing a brine solution into the third mixture to form a fourth mixture, and adding and mixing a weighting additive into the fourth mixture to form the oil-based drilling fluid.

公开(公告)号：US09759829B2

公开(公告)日：2017-09-12

申请号：US14634776

申请日：2015-02-28

申请人： Glenn Dale Chubak

发明人： Glenn Dale Chubak

IPC分类号： G01V3/02 ,  C12Q1/00 ,  E21B44/00

CPC分类号： G01V3/02 ,  C12Q1/00 ,  C12Q2304/00 ,  E21B1/00 ,  E21B44/00 ,  G01V1/00 ,  G01V2200/00

摘要： A system and method for geophysical data collection, for use with resistivity and induced polarization. The system and method include the use of a single voltage reference wire to which all voltage recorders or nodes are connected by means of a piercing wire connector, the voltage recorders providing a measurement of the potential voltage between the reference wire and the ground and allowing for calculation of relative voltage potentials between adjacent recorders.