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公开(公告)号：US20240003192A1
公开(公告)日：2024-01-04
申请号：US18364337
申请日：2023-08-02
申请人： Longyear TM, Inc.
CPC分类号： E21B10/04 , E21B10/605 , E21B49/02 , E21B10/00 , E21B10/02 , E21B10/08 , E21B10/20 , E21B49/084
摘要： A method includes advancing a drill bit into a formation to form core sample pieces. The drill bit has a central axis and includes a crown defining an inner operative circumference. The crown is configured to form a core sample. A core receiving space is configured to receive the core sample as the drill bit is advanced into the formation. A base surface is spaced from the cutting face along the central axis of the drill bit. The base surface is configured to break apart portions of the core sample to form core sample pieces. The method can further include associating the core sample pieces with respective depths at which the core sample pieces were separated from the formation.
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公开(公告)号：US11732929B2
公开(公告)日：2023-08-22
申请号：US17588267
申请日：2022-01-29
申请人： William James Hughes
发明人： William James Hughes
CPC分类号： F24T10/40 , E21B10/00 , E21B41/0064 , E21B43/124 , F24T2010/53
摘要： Disclosed herein are various embodiments of systems for drilling and operating a well which may have dual uses. The well may be drilled and operated as a geothermal well using a hybrid approach where a heat transfer fluid is injected into a hot rock formation but is not removed, and heat is extracted using a closed loop method. The geothermal well is then evaluated for use as a carbon dioxide sequestration well. In other embodiments, the well is drilled as a carbon dioxide sequestration well and then evaluated for its potential for generating geothermal energy using a hybrid approach where supercritical carbon dioxide is injected into a hot rock formation but is not removed, and heat is extracted using a closed loop method. Both horizontal and vertical wells are disclosed, in sedimentary rocks and in basement granite.
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3.发明申请公开(公告)号：US20180266002A1
公开(公告)日：2018-09-20
申请号：US15986760
申请日：2018-05-22
IPC分类号： C25D5/12 , C23C18/32 , C23C18/16 , E21B17/10 , C25D5/14 , C25D5/18 , E21B10/00 , E21B4/02 , C25D7/00
CPC分类号： C25D5/12 , C23C18/1653 , C23C18/1694 , C23C18/32 , C25D5/14 , C25D5/18 , C25D7/00 , E21B4/02 , E21B10/00 , E21B17/1085 , Y10T428/12833 , Y10T428/12854
摘要： A coating for protecting a base material from wear and corrosion includes a first layer deposited directly onto an outer surface of the base material. In addition, the coating includes a second layer deposited directly onto the first layer. The first layer is positioned between the base material and the second layer. The first layer includes chromium having a first micro-crack density and the second layer comprises chromium having a second micro-crack density that is less than the first micro-crack density.
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公开(公告)号：US10012025B2
公开(公告)日：2018-07-03
申请号：US14517454
申请日：2014-10-17
摘要： A method for predicting a change in lateral displacement with a change in axial displacement of a drill bit drilling in a formation rock includes: constructing a virtual representation of the drill bit and the formation rock, the drill bit having a gage pad configured to remove rock by wearing or crushing the rock during moving contact and a cutter configured to cut into the rock during moving contact with the rock; adjusting lateral penetration depth until rock reactive force equals a side force applied to the drill bit to provide an adjusted lateral penetration depth; removing formation rock to where the pad and the cutters contact the rock at the adjusted lateral penetration depth and to a selected axial displacement of the drill bit; moving the drill bit in a drilling direction to the end of the currently drilled borehole; and iterating the adjusting, the removing, and the moving.
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公开(公告)号：US09987675B2
公开(公告)日：2018-06-05
申请号：US14378992
申请日：2012-05-30
申请人： Jeffrey G. Thomas
发明人： Jeffrey G. Thomas
IPC分类号： B21K5/04 , B23P15/32 , E21B10/00 , E21B10/46 , C22C1/10 , C22C26/00 , C22C29/08 , B28B1/00 , B28B1/08 , C04B35/56 , C04B35/64 , B22F5/00
CPC分类号： B21K5/04 , B22F2005/001 , B23P15/32 , B28B1/008 , B28B1/08 , C04B35/5626 , C04B35/64 , C22C1/1036 , C22C26/00 , C22C29/08 , E21B10/00 , E21B10/46
摘要： A method of manufacturing a well tool can include loading a matrix material into a mold, then sintering the matrix material in the mold; and then loading another matrix material into the mold. A well tool can include a longitudinal axis, an erosion resistant layer exposed to one or more erosive factors when the well tool is installed in a well, and a support layer which supports the erosion resistant layer. The erosion resistant and support layers can include respective matrix materials, and the erosion resistant layer can extend greater than approximately 1.27 cm in a direction parallel to the longitudinal axis. Another method of manufacturing a well tool can include forming a rigid layer from a powdered matrix material; and then infiltrating both that matrix material and another matrix material with a hot liquid binder material.
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公开(公告)号：US09982182B2
公开(公告)日：2018-05-29
申请号：US15660217
申请日：2017-07-26
发明人： Heinz Muller , Nadja Herzog , Diana Maker , Michael Fefer , Jun Liu
摘要： The present invention relates to a drilling composition comprising: I) an organic phase comprising components i, from about 20 wt. % to about 99,999 wt. %, based on the total weight of components i. and ii., of at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon, ii. from about 0.001 wt % to about 25 wt. %, based on the total weight of components i. and ii., of at least one ester, II) from 0 to about 50 wt. %, based on the total weight of the composition, of water or aqueous phase, III) from 0 to about 60 wt. %, based on the total weight of the composition, of at least one additive, wherein the sum of the weight components I) to III) is 100 wt %, to a process for preparation of a drilling composition, to uses of a drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, to a process for production of at least one of oil and gas.
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公开(公告)号：US20180142535A1
公开(公告)日：2018-05-24
申请号：US15511537
申请日：2016-02-08
发明人： Mark A. Sitka , Mukul M. Agnihotri
CPC分类号： E21B41/00 , E21B3/02 , E21B7/15 , E21B10/00 , E21B17/003 , E21B17/028 , F16C19/364 , F16C2352/00
摘要： A electrical conveyance for downhole tools is disclosed. The electrical conveyance system may include an electrical power manifold, a drill string coupled to the electrical power manifold, a multi-conductor conduit extending through an interior of the drill string, and a stinger assembly extending from an exterior of the electrical power manifold to an interior of the electrical power manifold to couple the multi-conductor conduit to an electrical power source.
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公开(公告)号：US09970264B2
公开(公告)日：2018-05-15
申请号：US14730091
申请日：2015-06-03
发明人： Rory McCrae Tulloch
IPC分类号： E21B23/00 , E21B41/00 , E21B10/00 , E21B10/26 , E21B23/01 , E21B25/00 , E21B33/12 , E21B34/06 , E21B34/14
CPC分类号： E21B41/00 , E21B10/00 , E21B10/26 , E21B23/00 , E21B23/01 , E21B25/00 , E21B33/12 , E21B34/06 , E21B34/14
摘要： A downhole actuating apparatus for actuating downhole. The apparatus is actuatable at the downhole location at, upon or during one or more particular cycle/s selectable from a sequence of cycles according to a predetermined selection. The downhole actuation comprises the release of at least one flowable object from the downhole location. The apparatus releases the at least one flowable object from the downhole location at, upon or during the particular cycle selectable from the sequence of cycles.
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公开(公告)号：US09951606B2
公开(公告)日：2018-04-24
申请号：US14353993
申请日：2014-01-03
IPC分类号： E21B47/024 , G01V1/42 , E21B47/14 , E21B7/04 , E21B10/00 , E21B44/02 , G01V1/30 , E21B47/06 , E21B47/09
CPC分类号： E21B47/024 , E21B7/04 , E21B7/046 , E21B10/00 , E21B44/02 , E21B47/06 , E21B47/065 , E21B47/091 , E21B47/14 , G01V1/30 , G01V1/306 , G01V1/42
摘要： A method and apparatus for directional drilling using mechanical wave detectors and a drill string having a drill bit at a drill bit end of the drill string. During an underground drilling operation in an underground formation, a mechanical wave signal is transmitted using a mechanical wave transmitter carried at the drill bit end of the drill string. The mechanical wave signal is received by an array of mechanical wave receivers at a ground surface above the underground formation. The received mechanical wave signals are processed to determine at least the location of the drill bit in the underground formation. The position and direction of travel data is communicated to a drilling control unit.
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公开(公告)号：US09951560B2
公开(公告)日：2018-04-24
申请号：US14517445
申请日：2014-10-17
摘要： A method for predicting an amount of axial motion of a drill bit having one or more cutters for drilling formation rock includes: receiving lithology data for the formation rock; receiving drilling parameters; calculating confined compressive strength (CCS) of the rock using the received information; calculating an area of cut into the formation rock by each of the one or more cutters; calculating an effective back rake of each of the one or more cutters; calculating a force applied to each of the one or more cutters using the CCS, the area of cut and the effective back rake of the one or more cutters, and by accounting for an orientation of each cutter with respect to a surface of the rock to be cut; and summing the calculated forces applied to each of the one or more cutters to calculate the weight on bit and torque on bit.
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