Method for determining the extent of recovery of materials injected into oil wells or subsurface formations during oil and gas exploration and production
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/267
E21B-043/25
E21B-047/00
G01N-033/24
출원번호
US-0706654
(2003-11-12)
발명자
/ 주소
Malone,Scott
Broacha,Earuch
Shaw,Don
Hampton,Tom
출원인 / 주소
Core Laboratories LP
대리인 / 주소
Madan, Mossman &
인용정보
피인용 횟수 :
34인용 특허 :
26
초록▼
Disclosed is a method of determining the extent of recovery of materials injected into oil wells or subsurface formations. The method includes injection of one or more tracers into an oil well or into a formation. Included in the method are the steps of introducing a material of interest into the oi
Disclosed is a method of determining the extent of recovery of materials injected into oil wells or subsurface formations. The method includes injection of one or more tracers into an oil well or into a formation. Included in the method are the steps of introducing a material of interest into the oil well or into the subsurface formation associated with the bore of the oil well; introducing a tracer into the oil well or into the subsurface formation associated with the bore of the oil well; recovering from the oil well a production fluid, analyzing the production fluid for a concentration of the chemical tracer present in the production fluid; and calculating the amount of material of interest recovered from the oil well using the concentration of the chemical tracer present in the production fluid as a basis for the calculation.
대표청구항▼
What is claimed is: 1. A method for determining the extent of recovery of materials injected into an oil well comprising: a) admixing a material to be injected into an oil well with a chemical tracer compound at a predetermined concentration; b) injecting the admixture into an oil well or an offset
What is claimed is: 1. A method for determining the extent of recovery of materials injected into an oil well comprising: a) admixing a material to be injected into an oil well with a chemical tracer compound at a predetermined concentration; b) injecting the admixture into an oil well or an offset well associated with an oil well; c) recovering from the oil well a production fluid; d) analyzing the production fluid for a concentration of the chemical tracer present in the production fluid; and e) calculating the amount of admixture recovered from the oil well using the concentration of the chemical tracer present in the production fluid as a basis for the calculation. 2. The method of claim 1 wherein the tracer is selected from the group consisting of fluorinated benzoic acids, perfluoromethylcyclopentane (PMCP), perfluoromethylcyclohexane (PMCH), perfluorodimethylcyclobutane (PDMCB), m-perfluorodimethylcyclohexane (m-PDMCH), o-perfluorodimethylcyclohexane (o-PDMCH), p-Perfluorodimethylcyclohexane (p-PDMCH), perfluorotrimethylcyclohexane (PTMCH), perfluoroethylcyclohexane (PECH), and perfluoroisopropylcyclohexane (IPPCH). 3. The method of claim 2 wherein the tracer is a fluorinated benzoic acid. 4. The method of claim 3 wherein the fluorinated benzoic acid is selected from the group consisting of including 2-fluorobenzoic acid; 3-fluorobenzoic acid; 4-fluorobenzoic acid; 3,5-difluorobenzoic acid; 3,4-difluorobenzoic acid; 2,6-difluorobenzoic acid; 2,5-difluorobenzoic acid; 2,3-difluorobenzoic acid; 2,4-difluorobenzoic acid; pentafluorobenzoic acid; 2,3,4,5-tetrafluorobenzoic acid; 4-(trifluoro-methyl)benzoic acid; 2-(trifluoromethyl)benzoic acid; 3-(trifluoro-methyl)benzoic acid; 3,4,5-trifluorobenzoic acid; 2,4,5-trifluorobenzoic acid; 2,3,4-trifluorobenzoic acid; 2,3,5-trifluorobenzoic acid; 2,3,6-trifluorobenzoic acid; and 2,4,6-trifluorobenzoic acid. 5. The method of claim 1 wherein the tracer is present in the admixture injected into an oil well at a concentration of at least about 1 part per trillion. 6. The method of claim 5 wherein the tracer is present in the admixture injected into an oil well at a concentration of less than or equal to 10,000 parts per million. 7. The method of claim 6 wherein the tracer is present in the admixture injected into an oil well at a concentration of from about 100 parts per trillion to about 100 parts per million. 8. The method of claim 1 wherein the material injected into the oil well is a hydraulic fracturing fluid. 9. The method of claim 1 wherein the material injected into the oil well is a chemical stimulation fluid. 10. The method of claim 1 wherein the amount of injected admixture recovered is determined using the formula: description="In-line Formulae" end="lead"AMT r=((Tr/Ti)횞AMTi) description="In-line Formulae" end="tail" Wherein: (i) AMTr is the amount of injected admixture recovered, (ii) Ti is the amount of tracer injected; (iii) Tr is the amount of tracer recovered; (iv) AMTi is the amount of admixture injected; and (v) Tr is determined by multiplying the concentrations of the tracer in the production fluid by the total quantity of production fluid recovered. 11. The method of claim 1 wherein the tracer is in the form of a coating on a solid support. 12. The method of claim 1 wherein the tracer is in the form of a liquid or solid within the pores of a porous support. 13. The method of claim 1 wherein the tracer is in the form of an encapsulated liquid or solid. 14. A method for determining the extent of recovery of a material of interest injected into an oil well or a subsurface formation associated with a bore of the oil well comprising: a) introducing a material of interest into the oil well or into the subsurface formation associated with the bore of the oil well; b) introducing a tracer into the oil well or into the subsurface formation associated with the bore of the oil well; c) recovering from the oil well a production fluid; d) analyzing the production fluid for a concentration of the chemical tracer present in the production fluid; and e) calculating the amount of material of interest recovered from the oil well using the concentration of the chemical tracer present in the production fluid as a basis for the calculation. 15. The method of claim 14 wherein the tracer is a fluorinated benzoic acid. 16. The method of claim 15 wherein the fluorinated benzoic acid is selected from the group consisting of including 2-fluorobenzoic acid; 3-fluorobenzoic acid; 4-fluorobenzoic acid; 3,5-difluorobenzoic acid; 3,4-difluorobenzoic acid; 2,6-difluorobenzoic acid; 2,5-difluorobenzoic acid; 2,3-difluorobenzoic acid; 2,4-difluorobenzoic acid; pentafluorobenzoic acid; 2,3,4,5-tetrafluorobenzoic acid; 4-(trifluoro-methyl)benzoic acid; 2-(trifluoromethyl)benzoic acid; 3-(trifluoro-methyl) benzoic acid; 3,4,5-trifluorobenzoic acid; 2,4,5-trifluorobenzoic acid; 2, 3,4-trifluorobenzoic acid; 2,3,5-trifluorobenzoic acid; 2,3,6-trifluorobenzoic acid; and 2,4,6-trifluorobenzoic acid. 17. The method of claim 16 wherein the tracer is introduced into the oil well or subsurface formation through the oil well. 18. The method of claim 16 wherein the tracer is introduced into the oil well or subsurface formation through an offset well. 19. The method of claim 16 wherein the material of interest is introduced into the oil well or subsurface formation through the oil well. 20. The method of claim 16 wherein the material of interest is introduced into the oil well or subsurface formation through an offset well. 21. The method of claim 14 wherein the amount of material of interest recovered is determined using the formula: description="In-line Formulae" end="lead"AMT r=((Tr/Ti)횞AMTi) description="In-line Formulae" end="tail" Wherein: (i) AMTr is the amount of material of interest recovered, (ii) Ti is the amount of tracer injected; (iii) Tr is the amount of tracer recovered; (iv) AMTi is the amount of material of interest injected; and (v) Tr is determined by multiplying the concentrations of the tracer in the production fluid by the total quantity of production fluid recovered.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (26)
Ramos Rogerio Tadeu ; Stephenson Kenneth,GBX, Apparatus and tool using tracers and singles point optical probes for measuring characteristics of fluid flow in a hydrocarbon well and methods of processing resulting signals.
Gadeken Larry L. (Houston TX), Low-noise method for performing downhole well logging using gamma ray spectroscopy to measure radioactive tracer penetra.
Fertl Walter H. (Houston TX) Oliver Donald W. (Houston TX), Method and apparatus for evaluating multiple stage fracturing or earth formations surrounding a borehole.
Smith ; Jr. Harry D. (Houston TX) Gadeken Larry L. (Houston TX) Arnold Dan M. (Katy TX), Method and apparatus for measuring horizontal fluid flow in downhole formations using injected radioactive tracer monito.
Dussan V. Elizabeth B. ; Wu Xu ; Mullins Oliver C. ; Gaylor Richard ; Ramos Rogerio Tadeu ; Stephenson Kenneth,GBX, Methods and apparatus utilizing a derivative of a fluorescene signal for measuring the characteristics of a multiphase fluid flow in a hydrocarbon well.
Satter Abdus (Houston TX) Widmyer Richard H. (Houston TX) Shum Yick M. (Houston TX) Howard Curtis E. (Porter TX), Petroleum recovery chemical retention prediction technique.
Rule, Jeffrey David; Faurot, Steve Allen, Method using halogenated benzoic acid esters and aldehydes for hydraulic fracturing and for tracing petroleum production.
Roberts, Jeffery; Aines, Roger D.; Duoss, Eric B.; Spadaccini, Christopher M., Methods and systems using encapsulated tracers and chemicals for reservoir interrogation and manipulation.
Sullivan, Philip F.; Tustin, Gary John; Christanti, Yenny; Kubala, Gregory; Drochon, Bruno; Chen, Yiyan; Dessinges, Marie Noelle; Howard, Paul R., Polymer delivery in well treatment applications.
Sullivan, Philip F.; Tustin, Gary John; Williamson, Don; Ladva, Hemant K., Polymeric microspheres as degradable fluid loss additives in oilfield applications.
Sullivan, Philip F.; Tustin, Gary John; Vatry, Christelle, Stabilizing biphasic concentrates through the addition of small amounts of high molecular weight polyelectrolytes.
Cochet, Thomas; Hughes, Trevor; Kefi, Slaheddine; Lafitte, Valerie; Tan, Khooi; Tustin, Gary; Wang, Shiyi, Use of encapsulated chemical during fracturing.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.