Apparatus and methods for providing information about one or more subterranean variables
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/267
E21B-047/01
E21B-049/00
G01V-001/40
G01V-003/18
출원번호
US-0030570
(2011-02-18)
등록번호
US-10087735
(2018-10-02)
발명자
/ 주소
Brannon, Harold Dean
출원인 / 주소
Baker Hughes, a GE company, LLC
대리인 / 주소
Jones, John Wilson
인용정보
피인용 횟수 :
0인용 특허 :
27
초록▼
A method of obtaining information about at least one variable existing at a target location in an underground well bore and/or surrounding subterranean formation includes delivering a plurality of signal generating devices to the target location(s), emitting at least one detectable signal from the t
A method of obtaining information about at least one variable existing at a target location in an underground well bore and/or surrounding subterranean formation includes delivering a plurality of signal generating devices to the target location(s), emitting at least one detectable signal from the target location and receiving at least one such signal. Information about the variable(s) is derived from at least some of the received signals.
대표청구항▼
1. A method of obtaining information about at least one fracture in a subterranean formation or the location of proppant within the fracture, the method comprising: forming a slurry that includes a plurality of particles of signal generating devices and particles of proppant, the particles of signal
1. A method of obtaining information about at least one fracture in a subterranean formation or the location of proppant within the fracture, the method comprising: forming a slurry that includes a plurality of particles of signal generating devices and particles of proppant, the particles of signal generating devices including sound generating material consisting of glass beads, ceramic beads, glass bubbles or an agglomeration thereof and further wherein the particles of sound generating material break under point-to-point stresses;injecting the slurry into a subterranean formation surrounding an underground well and delivering the slurry to the at least one fracture;cracking, expanding or shattering at least some of the particles of the sound generating material in response to fracture closure stress applied to the particles of the sound generating material to emit at least one detectable sound wave, wherein the at least one detectable sound wave is caused only by cracking, expanding or shattering of the particles of the sound generating material;receiving in at least one receiver at least one detectable sound wave caused by breakage of the sound generating material wherein the at least one receiver is located on the surface of the underground well or at another location; andderiving information about the fracture or location of the proppant within the fracture from the at least one received sound wave. 2. The method of claim 1, wherein the at least one receiver is disposed at the surface of the underground well. 3. The method of claim 1, wherein the at least one receiver is disposed at an offset well. 4. The method of claim 1, wherein the particle size of the signal generating devices is substantially the same as the particle size of the proppant. 5. The method of claim 1, wherein the particles of the signal generating devices are not larger than the particles of the proppant. 6. The method of claim 1, wherein the particles of the signal generating devices have substantially the same specific gravity as the particles of the proppant. 7. The method of claim 1, wherein the at least one receiver consists of receivers at different locations and further wherein the receivers triangulate the source of the signals transmitted from the signal generating devices. 8. A method of obtaining information about at least one fracture in a subterranean formation or the location of proppant within the fracture, the method comprising: forming a slurry comprising a plurality of particles of proppant and a plurality of particles of sound generating material, wherein the particles of sound generating material are not larger than the particles of the proppant and further wherein the sound generating material cracks or shatters in response to fracture closure stresses;injecting the slurry into an underground well surrounding the subterranean formation and delivering the slurry to the at least one fracture;delivering the proppant to the at least one fracture;generating a detectable sound wave by cracking or shattering at least some of the sound generating material in response to fracture closure stress applied thereto;receiving at least one detectable signal from the generated sound wave with at least one receiver disposed on a surface of an underground well or an offset well; andderiving information about the fracture or location of the proppant within the fracture from the at least one received signal. 9. The method of claim 8, wherein the sound generating material comprises glass beads, ceramic beads, glass bubbles, metal alloys or plastic. 10. The method of claim 8, wherein the sound generating materials include a piezoelectric material. 11. The method of claim 10, wherein the piezoelectric material comprises ceramic, bone, enamel or wood or a combination thereof. 12. A method of obtaining information about at least one fracture in a subterranean formation wherein the at least one fracture is created during hydraulic fracturing of a gas or oil well, the method comprising: injecting fluid into the well and forming at least one fracture in the subterranean formation wherein the fluid comprises (i) particles of proppant and (ii) particles of sound generating material, wherein the particles of sound generating material generate power from or react to thermal energy or bottom hole static temperature, particle swelling or temperature changes sufficient to power the transmission of at least one detectable signal of a sound wave emitted from the particles of sound generating material;emitting a detectable sound wave from the particles of sound generating material in response to a downhole condition; anddetecting the sound wave with at least one receiver on the surface of the well, one or more offset wells, in the casing of a well, on a tubing in a well, on a wireline or a downhole tool or another location. 13. The method of claim 12, wherein the at least one receiver is at an offset well. 14. The method of claim 12, wherein the particles of sound generating material include piezoelectric material. 15. The method of claim 14, wherein the piezoelectric material comprises ceramics, bone, enamel or wood or a combination thereof. 16. The method of claim 12, wherein the particles of the sound generating material comprise glass beads, ceramic beads, glass bubbles, metal alloys or plastic. 17. The method of claim 12, wherein the at least one receiver consists of multiple receivers and wherein the multiple receivers are located at different locations and further wherein the multiple receivers triangulate the source of the at least one detectable emitted sound wave.
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