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1. 发明申请

US20220298868A1 DRILLING UNIT 有权
公开(公告)号：US20220298868A1
公开(公告)日：2022-09-22
申请号：US17638151
申请日：2020-08-25
申请人： Mincon Nordic Oy
发明人： Joseph PURCELL
IPC分类号： E21B10/64 , E21B10/62
摘要： A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole, connecting means and a ring bit assembly (4) for reaming the center hole for the casing (7). Said ring bit assembly (4) being connected to said pilot bit (3) by the connecting means and to said casing (7) by the pulling means (2). Said ring bit assembly (4) comprising a carrier (5) comprising carrier coupling means (23) and a plurality of ring bit segments (6) movably attached to said carrier coupling means (23).

2. 发明授权

US11428051B2 Bottom hole assemblies with expandable cladding sheaths for drilling ahead through a lost circulation zone of a wellbore 有权
公开(公告)号：US11428051B2
公开(公告)日：2022-08-30
申请号：US17147674
申请日：2021-01-13
申请人： Saudi Arabian Oil Company
发明人： Onos Sunday Ogelohwohor
IPC分类号： E21B10/08 , E21B10/64 , E21B23/03 , E21B29/00
摘要： Bottom hole assemblies for drilling through a lost circulation zone of a wellbore includes a drill string, a drill bit and a cladding seat coupled to the drill string, an expandable cladding sheath engaged with the cladding seat, a release mechanism coupling an uphole end of the expandable cladding sheath to the drill string, and an expander translatable axially along the drill string. The expandable cladding sheath is a fiber reinforced polymer. The cladding seat releasably couples a downhole end of the expandable cladding sheath to the drill string, and the release mechanism operates to release the uphole end of the expandable cladding sheath from the drill string. The expander deforms the expandable cladding sheath outward into contact with a wall of a wellbore when translated axially through a central cavity of the expandable cladding sheath. The bottom hole assembly may enable drilling ahead through a lost circulation zone.

3. 发明申请

US20210189818A1 DOWNHOLE DISCONNECT TOOL 有权
公开(公告)号：US20210189818A1
公开(公告)日：2021-06-24
申请号：US17196972
申请日：2021-03-09
申请人： THRU TUBING SOLUTIONS, INC.
发明人： Roger L. SCHULTZ , Brock W. WATSON , Andrew M. FERGUSON , Gregory A. KLIEWER , Mark S. BRITTON
IPC分类号： E21B23/04 , E21B10/64 , F16L29/04 , E21B17/02 , E21B17/06
摘要： A system can include a disconnect tool connected as part of a tubular string, the disconnect tool including an outer housing, and an inner mandrel in the outer housing, in which an abrasive slurry is directed to flow through the tubular string and from the inner mandrel to an annulus between the inner mandrel and the outer housing, and the abrasive slurry erodes through the outer housing. A method can include installing a tubular string in a well, then deploying a disconnect assembly into the tubular string, and flowing an abrasive slurry through the disconnect assembly, thereby parting the tubular string. A disconnect tool can include a rotational flow structure configured to induce rotational flow, and an inner diameter decrease downstream of the rotational flow structure.

4. 发明申请

US20200024919A1 APPARATUS AND METHODS FOR HANDLING DRILL STRING 审中-公开
公开(公告)号：US20200024919A1
公开(公告)日：2020-01-23
申请号：US16037967
申请日：2018-07-17
申请人： David Wyeth SIGURDSON
发明人： David Wyeth SIGURDSON
IPC分类号： E21B23/14 , E21B10/64 , E21B17/20
摘要： An apparatus and method for pulling a drill string out from a wellbore and lowering the drill string back into the wellbore, with minimal or no disassembly of the drill string, are provided. The apparatus has a first tension mechanism, a second tension mechanism, an up-hole cable, a down-hole cable and a guide. To pull a drill string out from a wellbore, the up-hole cable is connected to an up-hole end of the drill string and the drill string is pulled upwardly into and through the guide. To lower the drill string into the wellbore, the down-hole cable is connected to the mid-section (and/or the up-hole end) of the drill string and the drill string is pulled downwardly from the guide back into the wellbore.

5. 发明申请

US20180266186A1 COLLAPSIBLE MULTI-SIZED DRILL BIT AND METHOD OF USE 审中-公开
公开(公告)号：US20180266186A1
公开(公告)日：2018-09-20
申请号：US15919773
申请日：2018-03-13
申请人： Dennis Burca , Said Marzouk
发明人： Dennis Burca , Said Marzouk
IPC分类号： E21B10/64 , E21B10/46
CPC分类号： E21B10/64 , E21B10/003 , E21B10/32 , E21B10/322 , E21B10/327 , E21B10/46
摘要： The present invention relates to a collapsible drill bit for use in formation drilling and a method of formation drilling. The drill bit includes a main body having a first cutting diameter and includes a front end with a cutting face supporting one or more cutting elements and a rear end configured to operatively connect to a drill string. The drill bit also includes a retractable portion between the front end and the rear end, the retractable portion including at least one cutting face supporting one or more cutting elements, the retractable portion configured to move between an expanded position in which the retractable portion has a second cutting diameter and a collapsed position in which the retractable portion has a diameter less than or equal to the first cutting diameter. Wherein the retractable portion is caused to move into the collapsed position upon an application of a sufficient force.

6. 发明申请

US20180010390A1 APPARATUS AND METHOD FOR DRILLING A DIRECTIONAL BOREHOLE IN THE GROUND 审中-公开
公开(公告)号：US20180010390A1
公开(公告)日：2018-01-11
申请号：US15545241
申请日：2016-01-21
申请人： HUISMAN WELL TECHNOLOGY
发明人： Gerardus Godefridus Johannes VAN OG , Pieter Dirk Melis VAN DUIVENDIJK , Joop ROODENBURG
IPC分类号： E21B7/20 , E21B10/60 , E21B7/06 , E21B44/00 , E21B10/64
CPC分类号： E21B7/208 , E21B7/067 , E21B7/068 , E21B10/60 , E21B10/64 , E21B44/00
摘要： A directional casing drilling system includes a casing string, a drilling rig and a retrievable Bottom Hole Assembly (BHA). The drilling rig includes a casing drive for rotating the casing string in the borehole, a control system for controlling the casing drive, and a mud pump for pumping a continuous flow of drilling mud into the casing string. The BHA includes a torque transfer section, with which it is secured in the casing string, and a drill bit section held in a drilling position in the torque transfer section. It further includes a mud drive that rotates the drilling position of the drill bit section about the longitudinal axis of the torque transfer section, and a communicating device for communicating the orientation of the drill bit to the control system. The BHA is steered by adjusting the rotational speed of the casing string.

7. 发明申请

US20160312574A1 ONE TRIP LINER DRILLING AND CEMENTING 审中-公开
标题翻译：一次钻机钻孔和钻孔
公开(公告)号：US20160312574A1
公开(公告)日：2016-10-27
申请号：US15199755
申请日：2016-06-30
申请人： Schlumberger Technology Corporation
发明人： Michael Eric Moffitt
IPC分类号： E21B33/14 , E21B7/00 , E21B10/64 , E21B43/10 , E21B33/12 , E21B34/12 , E21B4/02
CPC分类号： E21B33/14 , E21B7/20 , E21B10/26 , E21B21/10 , E21B34/12 , E21B43/10 , E21B47/18 , E21B2034/005
摘要： A liner drilling system and method to at least partially drill a wellbore with a liner and cement the liner in place in the wellbore, in a single downhole trip. An example system includes a liner releasably coupled to a drill string. The drill string extends through an axial bore of the liner and a downhole end includes a bottomhole assembly and a drill bit that rotate to drill a portion of a wellbore. A liner annulus is formed between the drill string and the liner. An annulus isolator is coupled to the liner and isolates flow within the bore of the liner from flowing through at least a portion of a wellbore annulus between the liner and the wellbore. A diverter in the drill string is positioned uphole of the bottomhole assembly and establishes a cement flow path into the liner annulus.
摘要翻译：一种衬管钻孔系统和方法，用于在井筒内单独的井下行程中至少部分地钻井具有衬套并将衬套固定在井眼中。示例性系统包括可释放地联接到钻柱的衬套。钻柱延伸穿过衬套的轴向孔，并且井下端包括井底组件和旋转以钻出井眼的一部分的钻头。在钻柱和衬套之间形成衬垫环。环形隔离器耦合到衬套并且隔离衬套的孔内的流动流过衬管和井筒之间的井筒环的至少一部分。钻柱中的分流器位于井底组件的孔的上方，并建立了进入衬垫环的水泥流道。

8. 发明授权

US08371398B2 Downhole fluid loss control apparatus 有权
标题翻译：井下流失液控制装置
公开(公告)号：US08371398B2
公开(公告)日：2013-02-12
申请号：US10969388
申请日：2004-10-20
申请人： Troy A. Miller , Edward T. Wood
发明人： Troy A. Miller , Edward T. Wood
IPC分类号： E21B10/64
CPC分类号： E21B34/08 , E21B7/203 , E21B33/12
摘要： A sealing device for downhole use, one of which is for casing, when drilling with casing, which allows the casing to be closed off if the bottom hole assembly needs to come out for any reason. In one embodiment, the internal packer is triggered to set in a variety of ways upon removal of the bottom hole assembly. It can be drilled out when the new bottom hole assembly is run in later. In an alternative design, a flapper can be used that is held open for the initial insertion of the bottom hole assembly and is released to spring shut upon removal of the assembly. Multiple flappers or packers or other types of closure devices are envisioned to allow removal of the bottom hole assembly more than once and still retain blowout protection on each removal of the bottom hole assembly. A variety of applications are contemplated some of which are perforation, side tracking, fracturing, and gravel packing, to name a few examples.
摘要翻译：一种用于井下使用的密封装置，其中一个用于套管，当用套管钻孔时，如果底孔组件由于任何原因需要脱出，则允许将壳体关闭。在一个实施例中，在拆除底孔组件时，内部封隔器被触发以多种方式设定。以后可以钻新的底孔组件。在替代设计中，可以使用挡板，其被保持打开以初始插入底孔组件，并且在拆卸组件时释放到弹簧关闭。可以设想多个襟翼或封隔器或其他类型的闭合装置，以允许不止一次地移除底部孔组件，并且在每个移除底部孔组件时仍然保持井喷保护。考虑到其中一些应用是穿孔，侧面跟踪，压裂和砾石包装，仅举几个例子。

9. 发明授权

US07766101B2 System and method for making drilling parameter and or formation evaluation measurements during casing drilling 有权
标题翻译：在套管钻井过程中制作钻孔参数和/或地层评估测量的系统和方法
公开(公告)号：US07766101B2
公开(公告)日：2010-08-03
申请号：US11767744
申请日：2007-06-25
申请人： Brian Clark
发明人： Brian Clark
IPC分类号： E21B10/64
CPC分类号： E21B17/20 , E21B17/1007 , E21B17/1042 , E21B47/00
摘要： A casing drilling system includes a casing having a drill bit at one end. The drill bit is capable of drilling subsurface formations and formed from a material removable by drilling or chemical exposure. The chemical is substantially harmless to the casing. The system includes a centralizer affixed to an interior of the casing. The centralizer includes a receptacle therein for engaging a measurement while drilling tool. The centralizer is formed from a material removable by drilling or chemical exposure, wherein the chemical is substantially harmless to the casing. The system includes a measurement while drilling tool configured to move along the interior of the casing and to engage with the centralizer. The tool includes a device to measure a drilling parameter or a formation parameter. The tool including a latch at an upper end thereof for engagement with a retrieval tool moved through the interior of the casing.
摘要翻译：壳体钻井系统包括在一端具有钻头的壳体。钻头能够钻探地下地层，并由可通过钻孔或化学暴露法移除的材料形成。该化学品对外壳基本无害。该系统包括固定在壳体内部的扶正器。扶正器包括用于在钻具上进行测量的容器。扶正器由可通过钻孔或化学暴露而移除的材料形成，其中该化学品基本上对壳体无害。该系统包括测量，同时钻孔工具被配置成沿着壳体的内部移动并与中心器接合。该工具包括测量钻孔参数或地层参数的装置。该工具包括在其上端的闩锁，用于与通过壳体内部移动的取出工具接合。

10. 发明授权

US6155360A Retractable drill bit system 失效
标题翻译：伸缩钻头系统
公开(公告)号：US6155360A
公开(公告)日：2000-12-05
申请号：US253743
申请日：1999-02-22
申请人： Gavin Thomas McLeod
发明人： Gavin Thomas McLeod
IPC分类号： E21B10/66 , E21B10/64
CPC分类号： E21B10/66
摘要： A retractable drill bit system for a ground drill includes drill bit assembly, a bit assembly sleeve, and a transport member. The drill bit assembly is engagable with a drive sub attached to the bottom of the ground drill with the drill bit assembly being selectively expandable and collapsible between a transport position in which the drill bit assembly is transported through the ground drill by the sleeve and transport member and a cutting position in which the drill bit assembly locks into the drive sub and cuts the hole. The drill bit assembly in the cutting position is able to cut a hole substantially greater than the diameter of the ground drill itself. The drill bit assembly includes a circular bit attached at a lower most end of the sleeve and bit segments retained in slots formed in the sleeve. Each segment is provided with a lever that extends radially inwardly of the sleeve and engages the transport member. The transport member is arranged coaxially with and extends inside the sleeve, with the transport member or sleeve being resiliently coupled together to allow relative linear sliding motion. The lower end of the bit assembly sleeve extends beyond a lower end of the transport member. The drill bit assembly is coupled to the bit assembly sleeve and transport member so that linear motion of the lower ends of the sleeve and the transport member urges the segments radially outwardly from engagement of the levers with the transport member.
摘要翻译：一种用于地钻的伸缩式钻头系统包括钻头组件，钻头组合套筒和运输构件。所述钻头组件可接合附接到所述地钻的底部的驱动副，所述钻头组件选择性地可膨胀和可收缩在所述钻头组件通过所述套筒和所述输送构件传送通过所述钻探机的运输位置之间以及切割位置，其中钻头组件锁定到驱动器底部并切割孔。在切割位置的钻头组件能够切割大致大于钻头本身直径的孔。钻头组件包括附接在套筒最下端的圆形钻头和保持在套筒中形成的槽中的钻头段。每个部分设置有一个杠杆，该杠杆沿套筒的径向向内延伸并与输送构件接合。传送构件与套筒同轴地布置并延伸到套筒内部，其中传送构件或套筒弹性地联接在一起以允许相对的线性滑动运动。钻头组合套筒的下端延伸超出输送构件的下端。钻头组件联接到钻头组件套筒和输送构件，使得套筒和输送构件的下端的直线运动通过杆与输送构件的接合而径向向外推动段。

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