Drill bit for use in drilling subterranean formations
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-010/36
E21B-010/43
출원번호
US-0817411
(2010-06-17)
등록번호
US-8887839
(2014-11-18)
발명자
/ 주소
Vempati, Chaitanya K.
Oldham, Jack Thomas
Reek, Edwin R
Fuselier, Danielle M.
Patel, Suresh G.
Laing, Robert
출원인 / 주소
Baker Hughes Incorporated
대리인 / 주소
TraskBritt
인용정보
피인용 횟수 :
2인용 특허 :
137
초록▼
A drill bit for drilling subterranean formations comprising a drill bit body including a group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each other along a first radial axis. The drill bit body further inclu
A drill bit for drilling subterranean formations comprising a drill bit body including a group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each other along a first radial axis. The drill bit body further including a group of backup cutting elements comprising a first backup cutting element in a secondary cutting position relative to the first primary cutting element and a second backup cutting element in secondary cutting positions relative to the second primary cutting element, wherein the first and second backup cutting elements are radially spaced apart from each other along a second radial axis different than the first radial axis and comprise a difference in cutting characteristic relative to each other of one of a backrake angle and a siderake angle.
대표청구항▼
1. A drill bit for drilling subterranean formations comprising: a drill bit body comprising: a group of primary cutting elements on a first blade, the group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each oth
1. A drill bit for drilling subterranean formations comprising: a drill bit body comprising: a group of primary cutting elements on a first blade, the group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each other along a first radial axis; anda group of backup cutting elements on the first blade, the group of backup cutting elements comprising a first backup cutting element in a secondary cutting position relative to the first primary cutting element and a second backup cutting element in secondary cutting positions relative to the second primary cutting element, wherein the first backup cutting element and the second backup cutting element are radially spaced apart from each other along a second radial axis different than the first radial axis and comprise a difference in cutting characteristic relative to each other of one of a backrake angle and a siderake angle, and wherein at least one of the first backup cutting element and the second backup cutting element is over-exposed relative to at least one of the first primary cutting element and the second primary cutting element, wherein the exposures of the backup cutting elements of the group of backup cutting elements decrease with increasing distance from a center of the drill bit body along the second radial axis, and wherein one of the backrake angles and siderake angles of the backup cutting elements of the group of backup cutting elements increase with increasing distance from the center of the drill bit body along the second radial axis. 2. The drill bit of claim 1, wherein the first and second backup cutting elements comprise a difference in backrake angle relative to each other of at least about 5°. 3. The drill bit of claim 2, wherein the first and second backup cutting elements comprise a difference in backrake angle relative to each other within a range between about 2° and about 60°. 4. The drill bit of claim 1, wherein the first and second backup cutting elements comprise a difference in siderake angle relative to each other of at least about 5°. 5. The drill bit of claim 1, further comprising at least one additional backup cutting element positioned along a third radial axis different than the first radial axis and the second radial axis, wherein the drill bit comprises a set of backup cutting elements comprising the first backup cutting element and the at least one additional backup cutting element having the same radial position on the drill bit body and spaced apart from each other through a portion of a circumference extending around a center of the drill bit body. 6. The drill bit of claim 5, wherein the first and the at least one additional backup cutting elements comprise a different backrake angle relative to each other. 7. The drill bit of claim 5, wherein the first and the at least one additional backup cutting elements comprise a different siderake angle relative to each other. 8. The drill bit of claim 5, wherein the first and the at least one additional backup cutting elements comprise a same cutting element exposure relative to each other as measured from their respective primary cutting elements. 9. The drill bit of claim 1, wherein the first and second backup cutting elements comprise a difference in backrake angle and siderake angle relative to each other. 10. The drill bit of claim 1, wherein the first and second backup cutting elements further comprise a difference in cutting characteristic relative to each other selected from the group of cutting characteristics consisting of cutting element size, cutting element shape, cutting element exposure, siderake angle, backrake angle, chamfer length, chamfer angle, radial offset, circumferential offset, cutting element material, and a combination thereof. 11. The drill bit of claim 10, wherein the first backup cutting element comprises a first cutting element exposure relative to the corresponding primary cutting element and the second backup cutting element comprises a second cutting element exposure relative to the corresponding second primary cutting element, and wherein the first cutting element exposure is different than the second cutting element exposure. 12. The drill bit of claim 11, wherein the first cutting element exposure and the second cutting element exposure are different from each other by at least about 5% based on the cutting element exposure having the greater value. 13. The drill bit of claim 11, wherein the first cutting element exposure is different than the second cutting element exposure by an amount within a range between about 0.1 mm and about 10 mm. 14. The drill bit of claim 1, wherein the first radial axis and the second radial axis are separated by a radial angle of not greater than about 45°. 15. A drill bit for drilling subterranean formations comprising: a drill bit body comprising: a group of primary cutting elements on a first blade; anda group of backup cutting elements on the first blade, each of the backup cutting elements having a lower exposure than a corresponding one of the primary cutting elements, the group of backup cutting elements comprising a first backup cutting element and a second backup cutting element radially spaced apart from each other and different from each other in at least one cutting characteristic selected from the group of cutting characteristics consisting of cutting element shape, chamfer angle, number of chamfers, and radius of curvature of a radiused edge between a side surface and an upper surface of the cutting element, wherein the exposures of the backup cutting elements of the group of backup cutting elements decrease with increasing distance from a center of the drill bit body, and wherein one of backrake angles and siderake angles of the backup cutting elements of the group of backup cutting elements increase with increasing distance from a center of the drill bit body along a radial axis. 16. The drill bit of claim 15, wherein the first and second backup cutting elements comprise at least two different cutting characteristics. 17. The drill bit of claim 15, wherein the first and second backup cutting elements further comprise a difference in cutting element exposure and backrake angle. 18. The drill bit of claim 15, wherein the first and second backup cutting elements further comprise a difference in cutting element exposure and siderake angle. 19. The drill bit of claim 15, wherein the first and second backup cutting elements further comprise a difference in cutting element exposure and radial offset. 20. A drill bit for drilling subterranean formations comprising: a drill bit body comprising: a group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each other along a first radial axis;a group of backup cutting elements comprising a first backup cutting element in a secondary cutting position relative to the first primary cutting element and a second backup cutting element in secondary cutting positions relative to the second primary cutting element, wherein the first and second backup cutting elements are radially spaced apart from each other along a second radial axis different than the first radial axis and comprise a difference in cutting characteristic relative to each other of one of a backrake angle and a siderake angle, wherein the one of backrake angles and siderake angles of the backup cutting elements of the group of backup cutting elements increase with increasing distance from a center of the drill bit body along the second radial axis; andat least one additional backup cutting element positioned along a third radial axis different than the first radial axis and the second radial axis, wherein the drill bit comprises a set of backup cutting elements comprising the first backup cutting element and the at least one additional backup cutting element having the same radial position on the drill bit body and spaced apart from each other through a portion of a circumference extending around a center of the drill bit body; andwherein at least one of the first backup cutting element, the second backup cutting element, and the at least one additional backup cutting element is over-exposed relative to at least one of the first primary cutting element and the second primary cutting element.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (137)
Dodsworth John (1 Manor Close Trimdon Village ; County Durham GBX), Abrasive product.
Scott Danny Eugene ; Oldham Jack Thomas ; Lynde Gerald D. ; Nazzal Greg ; Swanson Roy E. ; Randall Brad ; Anderson James W., Combination milling tool and drill bit.
Cerceau Jean-Michel (Seyssinet FRX), Composite abrasive product comprising an active part of ultra-hard material and method of manufacturing such a product.
Scott Danny E. ; Smith Redd H. ; Horton Ralph M. ; Chaves Arthur A., Cutting element with controlled superabrasive contact area, drill bits so equipped.
Tank Klaus (9 Warbleton Avenue Essexwold ; Johannesburg ; Transvaal ZAX) Lloyd Andrew I. (52 15th Street Parkhurst ; Johannesburg ; Transvaal ZAX), Cutting insert for a rotary cutting tool.
Tank Klaus (9 Warbleton Avenue Essexwold ; Johannesburg ; Transvaal ZAX) Lloyd Andrew I. (52 15th Street Parkhurst ; Johannesburg ; Transvaal ZAX), Cutting insert for a rotary cutting tool.
Cooley Craig H. (Bountiful UT) Lund Jeffrey B. (Salt Lake City UT) Smith Redd H. (Salt Lake City UT), Diamond cutters having modified cutting edge geometry and drill bit mounting arrangement therefor.
Waldenstrm Mats G. (Bromma SEX) Fischer Udo K. R. (Vallingby SEX) Hillert Lars H. (Nacka TX SEX) Dennis Mahlon D. (Kingwood TX), Diamond rock tools for percussive and rotary crushing rock drilling.
Waldenstrm Mats G. (Bromma SEX) Fisher Udo K. R. (Vllingby SEX) Hillert Lars H. (Saltsj-Boo TX SEX) Dennis Mahlon D. (Kingwood TX), Diamond tools for rock drilling, metal cutting and wear part applications.
Keshavan Madapusi K. (The Woodlands TX) Kembaiyan Kuttaripalayam T. (The Woodlands TX) Quantz Wayne C. (Kingwood TX) Tucker ; Jr. Robert C. (Brownsburg IN) Mendenhall Melvin D. (Friendswood TX) Quets, High performance overlay for rock drilling bits.
Fleming Debra Anne ; Johnson David Wilfred ; Kowach Glen Robert ; Lemaire Paul Joseph, Isotropic negative thermal expansion cermics and process for making.
Sung Chien-Min (Northboro MA) Chen Sy-Hwa (Salt Lake City UT) Merrill Leo (Orem UT) Bigelow Louis K. (Salt Lake City UT), Low pressure bonding of PCD bodies and method.
Butcher, Trent N.; Horton, Ralph M.; Jurewicz, Stephen R.; Scott, Danny E.; Smith, Redd H., Method of forming polycrystalline diamond cutters having modified residual stresses.
Butcher, Trent N.; Horton, Ralph M.; Jurewicz, Stephen R.; Scott, Danny E.; Smith, Redd H., Method of forming polycrystalline diamond cutters having modified residual stresses.
Meskin Alexander K. (2955 Morningside Dr. Salt Lake City UT 84117) Pay Clifford R. (2056 S. 775 West Woods Cross UT 84087), Multi-component cutting element using polycrystalline diamond disks.
Meskin Alexander K. (Salt Lake City UT) Merrill Leo (Orem UT) Pay Clifford R. (Woods Cross UT), Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond.
Butcher Trent N. ; Horton Ralph M. ; Jurewicz Stephen R. ; Scott Danny E. ; Smith Redd H., Polycrystalline diamond cutters having modified residual stresses.
Debra Anne Fleming ; David Wilfred Johnson ; Glen Robert Kowach ; Paul Joseph Lemaire, Process for making isotropic negative thermal expansion ceramics.
Tomita Tamaki (Okazaki JPX) Suzuki Ikuo (Chiryu JPX) Imai Tomoyasu (Kariya JPX) Kitajima Masato (Hekinan JPX), Resinoid bonded grinding wheel with support member made of a heat insulating material.
Beuershausen Christopher C. ; Dykstra Mark W. ; Fincher Roger ; Illerhaus Roland ; Matson Steve R. ; Norris James A. ; Ohanian Michael P. ; Pessier Rudolf C. O., Rotary drilling bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics.
Sleight Arthur W. ; Closmann Claire E. ; Haygarth John C. ; Upadhyayula Kameswari, Solution method for making molybdate and tungstate negative thermal expansion materials and compounds made by the method.
Sherwood, Jr.,William H.; Borremans,L. R.; Costo, Jr.,Robert J.; Duggan,James L., Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses.
Tibbitts Gordon A. (1378 Lakewood Cir. Salt Lake City UT 84117) Cooley Craig H. (1815 S. 900 E. Bountiful UT 84010) Smith Redd H. (1985 Sycamore La. Salt Lake City UT 84117) Pastusek Paul E. (4519 Fo, Stud design for drill bit cutting element.
Jurewicz Stephen R. ; Jensen Kenneth M. ; Tibbitts Gordon A., Superabrasive cutting element with enhanced durability and increased wear life and apparatus so equipped.
Jurewicz Stephen R. ; Jensen Kenneth M. ; Tibbitts Gordon A., Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped.
Jurewicz Stephen R. ; Jensen Kenneth M. ; Tibbitts Gordon A., Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped.
Lund,Jeffrey B.; Scott,Danny E.; Skeem,Marcus R., Superabrasive cutting elements having enhanced durability, method of producing same, and drill bits so equipped.
Lund, Jeffrey B.; Scott, Danny E.; Skeem, Marcus R., Superabrasive cutting elements with cutting edge geometry having enhanced durability, method of producing same, and drill bits so equipped.
Waldenstrm Mats G. (Bromma SEX) Fischer Udo K. R. (Vallingby SEX) Hillert Lars H. (Saltsj-Boo TX SEX) Dennis Mahlon D. (Kingwood TX), Tools for cutting rock drilling.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.