Radially adjustable downhole devices and methods for same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-047/12
출원번호
US-0780167
(2004-02-17)
발명자
/ 주소
Frost, Jr.,Elton
Engels,Ole G.
DiFoggio,Rocco
출원인 / 주소
Baker Hughes Incorporated
대리인 / 주소
Madan, Mossman &
인용정보
피인용 횟수 :
13인용 특허 :
7
초록▼
A method for logging a wellbore includes actuating a positioning device to adjust the position of a module relative to a reference point or object such as a wellbore axis or proximally positioned downhole device. With respect to a wellbore, an exemplary positioning device can set the measurement too
A method for logging a wellbore includes actuating a positioning device to adjust the position of a module relative to a reference point or object such as a wellbore axis or proximally positioned downhole device. With respect to a wellbore, an exemplary positioning device can set the measurement tool such as an acoustic device to successive radial positions (e.g., substantial concentricity or substantial eccentricity relative to an axis of the wellbore). In one embodiment, the module includes a measurement tool to measure different parameters of interest (e.g., acoustic logging data, check-shot data measurement, bonding of cement to casing). With respect to an adjacent downhole device, the positioning device can provide a selected relative orientation (e.g., azimuth, inclination, radial displacement) between the module and the adjacent downhole device. The positioning device can also be adapted to apply a jarring force to a wall of the wellbore to free a downhole device.
대표청구항▼
What is claimed is: 1. A method for performing a downhole operation in a wellbore, comprising: (a) conveying a tool having a first module proximally connected to a second module into the wellbore, the first module having a selectively adjustable positioning device, the first module having a measure
What is claimed is: 1. A method for performing a downhole operation in a wellbore, comprising: (a) conveying a tool having a first module proximally connected to a second module into the wellbore, the first module having a selectively adjustable positioning device, the first module having a measurement tool; and (b) actuating the positioning device to selectively position the first module radially relative to a reference point, the first module's relative position being different from the position of the second module relative to the reference point, wherein the first module can be operated in at least two positions relative to the reference point. 2. The method according to claim 1 wherein the reference point is a wellbore axis and the selected position is a radial position selected from one of (i) substantial eccentricity relative to the wellbore axis; and (ii) substantial concentricity relative to the wellbore axis. 3. The method according to claim 1 further comprising controlling the positioning device with a controller. 4. The method according to claim 3 further comprising adjusting the positioning device in response to one of: (i) preprogrammed data; (ii) a dynamically updated model; and (iii) data signals provided by a sensor coupled to the controller. 5. The method according to claim 1 further comprising attaching the first module to an umbilical selected from one of (i) a wire line; (ii) a slickline; (iii) a coiled tubing; (iv) a drill string and (v) a cable. 6. The method according to claim 1 further comprising moving the first module along the wellbore while operating the measurement tool. 7. The method according to claim 1 further comprising adjusting the position of the first module while the measurement tool is being operated. 8. The method according to claim 7 wherein the measurement tool measures by way of at least one of: (i) resistivity, (ii) NMR, (iii) nuclear, (iv) formation fluid sampling, and (v) acoustic. 9. The method according to claim 1 further comprising: (a) operating the measurement tool in a first portion of the wellbore; (b) moving the measurement tool to a second portion of the wellbore; (b) actuating the positioning device to position the first module in a selected position at the second portion of the wellbore; and (d) operating the measurement tool in the second portion of the wellbore. 10. The method according to claim 1 wherein the second module is the reference point. 11. An apparatus for use in a wellbore in an earth formation, comprising: (a) an umbilical; (b) a first module conveyed on the umbilical, the first module including a measurement tool; (c) a second module conveyed on the umbilical proximally to the first module; and (d) a positioning device associated with the first module, the positioning device being adapted to selectively adjust a radial position of the first module relative to a radial position of the second module, the first module being operable in at least two positions. 12. The apparatus according to claim 11 wherein the positioning device operates with reference to an axis of the wellbore and the selected position is a radial position selected from one of (i) substantial eccentricity relative to a wellbore axis; and (ii) substantial concentricity relative to the wellbore axis. 13. The apparatus according to claim 11 wherein the measurement tool is adapted to measure one of: (i) resistivity, (ii) NMR, (iii) nuclear, (iv) a formation fluid sampling, and (v) acoustic. 14. The apparatus according to claim 11 wherein the positioning device is adapted to maintain the selected position while the first module is moved along the wellbore. 15. The apparatus according to claim 11 wherein the first module has a selected orientation relative to the second module. 16. The apparatus according to claim 11 further comprising a controller configured to control the positioning device. 17. The apparatus to claim 16 wherein the controller is configured to position the first module in response to one of: (i) a preprogrammed criteria; (ii) a dynamically updated criteria; and (iii) signals from a sensor in communication with the controller. 18. The apparatus according to claim 11 wherein the positioning device is configured to alter the position of the first module while the first module is being operated. 19. The apparatus according to claim 11 wherein the umbilical selected from one of (i) a wire line; (ii) a slickline; (iii) a coiled tubing; (iv) a drill string; and (v) a cable. 20. An apparatus for use in a wellbore in an earth formation, comprising: (a) an umbilical; (a) a first module conveyed on the umbilical; (c) a second module conveyed on the umbilical proximally to the first module; and (d) a positioning device associated with the first module, the positioning device being adapted to selectively adjust the position of the first module relative to the second module, the first module being operable in at least two positions, wherein the positioning device is adapted to disengage a measurement tool disposed in the first module from a wall of the wellbore. 21. The apparatus according to claim 20 wherein the measurement tool is adapted to measure one of: (i) resistivity, (ii) NMR, (iii) nuclear, (iv) a formation fluid sampling, and (v) acoustic. 22. The apparatus according to claim 20 wherein the umbilical selected from one of (i) a wire line; (ii) a slickline; (iii) a coiled tubing; (iv) a drill string; and (v) a cable. 23. The apparatus according to claim 20 further comprising a controller configured to control the positioning device. 24. The apparatus to claim 23 wherein the controller is configured to position the first module in response to one of: (i) a preprogrammed criteria; (ii) a dynamically updated criteria; and (iii) signals from a sensor in communication with the controller.
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이 특허에 인용된 특허 (7)
Pritchard ; Jr. John J. (Harvey LA), Abandoning offshore well.
Nazzal Gregory R. ; Tubel Paulo S. ; Lynde Gerald D. ; Harrell John W. ; Leggett ; III James V., Apparatus and method for performing imaging and downhole operations at a work site in wellbores.
Flowers, Joseph K.; Smith, Michael L.; Beckel, Jeffrey; Adnan, Sarmad; Leising, Lawrence J., Downhole fluid pressure signal generation and transmission.
Gillen, Michael; Engels, Ole G.; Gilchrist, W. Allen; Trcka, Darryl E.; Kruspe, Thomas; Chen, Songhua, Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis.
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