专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US12012812B2 Dual flow converted auto-fill float valve 有权
公开(公告)号：US12012812B2
公开(公告)日：2024-06-18
申请号：US17865658
申请日：2022-07-15
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： Darko Arsoski , Alexander Craig Mackay
IPC分类号： E21B34/08 , E21B21/10 , E21B33/14 , F16K1/38 , F16K15/02 , F16K27/02
CPC分类号： E21B21/10 , E21B33/14 , E21B34/08 , F16K1/38 , F16K15/026 , F16K27/0209
摘要： A flow-actuated valve for use in a wellbore includes: a body; a poppet movable relative to the body between an open position and a closed position; a spring biasing the poppet toward the closed position; and a shifter having a drogue and a detent engaged with a detent profile of the poppet and a locking receptacle of the body when in an auto-fill mode, thereby keeping the poppet in a partially open position. The valve is operable to shift to a float mode in response to a first flow rate moving the poppet toward the open position to disengage the detent from the locking receptacle and a second flow rate imparting a drag force on the drogue sufficient to disengage the detent from the detent profile. The second flow rate is different than the first flow rate.

2. 发明授权

US11536095B2 Slimline stop collar with solid cam ring 有权
公开(公告)号：US11536095B2
公开(公告)日：2022-12-27
申请号：US17162381
申请日：2021-01-29
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： Darko Arsoski
IPC分类号： E21B17/16 , E21B17/043
摘要： A stop collar for mounting to a downhole tubular includes: a cylindrical housing having a threaded inner surface and a tapered inner surface; a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces; a solid cam ring having a tapered inner surface; and a cylindrical bolt having a threaded outer surface. A natural outer diameter of each ring is greater than a minor diameter of the threaded surfaces. Screwing the threaded surfaces of the housing and the bolt is operable to drive the tapered surfaces together, thereby compressing the slip ring such that the teeth engage a periphery of the tubular.

3. 发明授权

US11428073B2 Overpressure toe valve with atmospheric chamber 有权
公开(公告)号：US11428073B2
公开(公告)日：2022-08-30
申请号：US17054987
申请日：2019-06-11
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： Alexander Craig Mackay
IPC分类号： E21B34/10 , E21B33/14 , E21B47/06 , E21B23/04
摘要： A toe valve for use in a wellbore includes: a tubular mandrel having couplings at longitudinal ends thereof for assembly as part of a casing or liner string; a housing extending along a periphery of the mandrel and mounted thereto; a valve piston disposed in an annulus formed between the housing and the mandrel, movable between an open position and a closed position, disposed between a valve port of the housing and a valve port of the mandrel in the closed position; a fastener releasably connecting the valve piston to the housing in the closed position; an atmospheric chamber forming a portion of the annulus adjacent to the valve piston; and a drive piston disposed in the annulus adjacent to a drive port of the mandrel and operable to release the valve piston.

4. 发明授权

US11203902B2 Guide shoe with lockable nose 有权
公开(公告)号：US11203902B2
公开(公告)日：2021-12-21
申请号：US17049246
申请日：2019-05-02
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： Alexander Craig MacKay , Jonathan Peter Buckland
IPC分类号： E21B17/14 , E21B7/20
摘要： A guide shoe (1), adapted for connection to an end of a tubular for deployment in a wellbore of an oil, gas, or water well, includes: a body (10) having an axis (2) and being adapted for connection to the tubular such that torque can be transmitted between the tubular and the body (10); a nose (50) adapted for connection to the body (10); a locking mechanism (30) adapted to shift between an unlocked configuration, in which rotation of the nose (50) around the axis of the body (10) is permitted in first and second directions, and a locked configuration in which rotation of the nose (50) around the axis of the body (10) is restricted in at least one of the first and second directions. The guide shoe includes a resilient biasing device (20) urging the nose (50) into the locked configuration.

5. 发明申请

US20210025245A1 DEPLOYABLE CASING CENTRALISER WITH LATCH FOR BOW SPRINGS 有权
公开(公告)号：US20210025245A1
公开(公告)日：2021-01-28
申请号：US16975459
申请日：2019-04-15
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： Alexander Craig MACKAY
IPC分类号： E21B17/10
摘要： A centraliser for use in a wellbore includes: first and second collars, at least one resilient device extending between the first and second collars, and a locking ring for receiving a tubular in a position radially inside the resilient device and axially between the first and second collars; the resilient device being resiliently biased in a radial direction away from the locking ring; the locking ring having at least one catch device adapted to engage with the at least one resilient device in a radially restricted configuration and the catch device is adapted to resist radial movement of the resilient device away from the locking ring when the catch device is engaged with the resilient device; and at least one fixing between the at least one catch device and the locking ring and made from a sacrificial material adapted to degrade in wellbore conditions.

6. 外观设计

USD892868S1 Tubing shoe 有权
公开(公告)号：USD892868S1
公开(公告)日：2020-08-11
申请号：US29637538
申请日：2018-02-20
申请人： Downhole Products Limited
设计人： Keith David Bradford
摘要： FIG. 1 is a top plan view of a first embodiment of a tubing shoe showing my new design;
FIG. 2 is a bottom view of the tubing shoe of FIG. 1;
FIG. 3 is a side elevation view from the front of the tubing shoe of FIG. 1;
FIG. 4 is a side elevation view from the back of the tubing shoe of FIG. 1;
FIG. 5 is a side elevation view from a left side of the tubing shoe of FIG. 1;
FIG. 6 is a side elevation view from a right side of the tubing shoe of FIG. 1; and
FIG. 7 is a front left side perspective view of the tubing shoe of FIG. 1.
FIG. 8 is a top plan view of a second embodiment of a tubing shoe showing my new design;
FIG. 9 is a bottom view of the tubing shoe of FIG. 8;
FIG. 10 is a side elevation view from the front of the tubing shoe of FIG. 8;
FIG. 11 is a side elevation view from the back of the tubing shoe of FIG. 8;
FIG. 12 is a side elevation view from a left side of the tubing shoe of FIG. 8;
FIG. 13 is a side elevation view from a right side of the tubing shoe of FIG. 8; and,
FIG. 14 is a front left side perspective view of the tubing shoe of FIG. 8.
The broken lines show portions of a tubing shoe that form no part of the claimed design.

7. 发明申请

US20130248207A1 CENTRALISER 有权
标题翻译：中心
公开(公告)号：US20130248207A1
公开(公告)日：2013-09-26
申请号：US13989684
申请日：2012-01-13
申请人： Andrew Kirk , Ian Kirk
发明人： Andrew Kirk , Ian Kirk
IPC分类号： E21B17/10 , B23P17/00
CPC分类号： E21B17/1078 , B23P17/00 , E21B17/1014 , E21B17/1028 , Y10T29/49
摘要： A centraliser is disclosed for an oil, gas or water well, the centraliser having a body, and the body having a bore with an axis, the bore being configured to receive a tubular to be centraliser, the body having at least one resilient device configured to extend radially from the axis of the bore, wherein the body has at least one collar member extending radially inwards from the centraliser body adjacent to an end of the body. The collar can be formed separately from the body and attached subsequently, so that the body and the resilient device can optionally be formed in a single stamping or forming step from a single sheet of resilient material. The collars (typically at each end) are typically fixed co-axially in the bore so as to be resistant to axial movement of the collar member within the bore relative to the body of the centraliser, and can be retained in the body by radially extending a lip formed by forcing material at the ends of the body radially inwards into the bore to retain the collar. The body is typically adapted to receive within the bore at least one anchoring device for connection to the tubular, and the anchoring device is configured to engage the collar member within the bore of the body so that relative movement of the centraliser and the tubular is restricted once the anchoring device is fixed to the tubular and the anchoring device engages the collar member. A method of centralising a tubular in a borehole for an oil, gas or water well, and a method of making a centraliser for centralising a tubular in an oil, gas or water well are also disclosed.
摘要翻译：公开了一种用于油，气或水井的扶正器，所述中心器具有主体，并且所述主体具有带轴的孔，所述孔被配置为容纳作为中心器的管状物，所述主体具有至少一个弹性装置，从所述孔的轴线径向延伸，其中所述主体具有至少一个从所述中心体径向向内延伸的邻近所述主体的端部的套环构件。套环可以与主体分开形成并随后安装，使得主体和弹性装置可以可选地由单一的弹性材料片形成为单一的冲压或成形步骤。轴环（通常在每个端部）通常在孔中同轴地固定，以便抵抗轴环部件相对于中心器的主体的轴向运动，并且可以通过径向延伸通过将身体的端部的材料径向向内压入孔中而形成的唇缘以保持套环。主体通常适于在孔内容纳至少一个用于连接到管状物的锚定装置，并且锚固装置构造成使该套环构件接合在主体的孔内，使得中心器和管的相对运动受到限制一旦锚定装置固定到管状物上，并且锚定装置接合套环构件。还公开了一种将管状物集中在用于油，气体或水的井眼中的方法，以及制造用于将管状物集中在油，气体或水中的中心器的方法。

8. 外观设计

USD662952S1 Centraliser 有权
公开(公告)号：USD662952S1
公开(公告)日：2012-07-03
申请号：US29400032
申请日：2011-08-23
申请人： Andrew Keith Kirk , Ian Alastair Kirk
设计人： Andrew Keith Kirk , Ian Alastair Kirk

9. 发明申请

US20230069930A1 DUAL FLOW CONVERTED AUTO-FILL FLOAT VALVE 有权
公开(公告)号：US20230069930A1
公开(公告)日：2023-03-09
申请号：US17865658
申请日：2022-07-15
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： Darko Arsoski , Alexander Craig Mackay
IPC分类号： E21B34/08 , F16K1/38 , F16K15/02 , F16K27/02 , E21B33/14
摘要： A flow-actuated valve for use in a wellbore includes: a body; a poppet movable relative to the body between an open position and a closed position; a spring biasing the poppet toward the closed position; and a shifter having a drogue and a detent engaged with a detent profile of the poppet and a locking receptacle of the body when in an auto-fill mode, thereby keeping the poppet in a partially open position. The valve is operable to shift to a float mode in response to a first flow rate moving the poppet toward the open position to disengage the detent from the locking receptacle and a second flow rate imparting a drag force on the drogue sufficient to disengage the detent from the detent profile. The second flow rate is different than the first flow rate.

10. 发明申请

US20220364438A1 TOE VALVE WITH VENTED ATMOSPHERIC CHAMBER 有权
公开(公告)号：US20220364438A1
公开(公告)日：2022-11-17
申请号：US17767106
申请日：2020-11-09
申请人： DOWNHOLE PRODUCTS LIMITED
发明人： ALEXANDER CRAIG MACKAY
IPC分类号： E21B34/10 , E21B47/117 , E21B33/14 , E21B34/14
摘要： A toe valve for use in a wellbore includes: a tubular mandrel; a housing extending along a periphery of the mandrel; couplings at longitudinal ends of the toe valve for assembly as part of a casing or liner string; a valve piston disposed in an annulus formed between the housing and the mandrel, movable between an open position and a closed position, and disposed between a valve port of the housing and a valve port of the mandrel in the closed position; an atmospheric chamber for facilitating movement of the valve piston to the open position; a vent port formed through the housing and in fluid communication with the atmospheric chamber; and a flow control device disposed in the vent port and operable to prevent fluid flow from the wellbore into the atmospheric chamber and allow fluid flow from the atmospheric chamber into the wellbore.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式