[특허]Hybrid LPG frac

Hybrid LPG frac 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/16 E21B-043/26 E21B-043/267
출원번호	US-0894278 (2013-05-14)
등록번호	US-9683432 (2017-06-20)
발명자 / 주소	Fordyce, Victor Tudor, Eric
출원인 / 주소	Step Energy Services LLC
대리인 / 주소	Christensen O'Connor Johnson Kindness PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 26

초록 ▼

A fracturing method comprises: pumping a first stream of liquefied petroleum gas and gelling agent with a first frac pressure pump; pumping a second stream of lubricated proppant with a second frac pressure pump; combining the first stream and the second stream within a wellhead into a combined stream; pumping the combined stream into a hydrocarbon reservoir; and subjecting the combined stream in the hydrocarbon reservoir to fracturing pressures. A fracturing apparatus comprises: a first frac pressure pump connected to a first port of a wellhead; a second frac pressure pump connected to a second port of the wellhead; a frac fluid source connected to simply a stream of frac fluid comprising liquefied petroleum gas to the first frac pressure pump; a gel source connected to supply a gelling agent into the frac fluid; and a proppant supply source connected to supply lubricated proppant to the second frac pressure pump.

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1. A fracturing method comprising: pumping a first stream of proppant-free liquefied petroleum gas and gelling agent with a first frac pressure pump through a first surface line into a wellhead through a first port of the wellhead;pumping a second stream of lubricated proppant with a second frac pressure pump through a second surface line separate from the first surface line into the wellhead through a second port of the wellhead that is separate from the first port of the wellhead;removing fluid from the second stream of lubricated proppant with a proppant intensifier prior to the second stream entering the second port of the wellhead, wherein the proppant intensifier removes fluid from the second stream after the second frac pressure pump;the first stream and the second stream having respective velocity vector components that are directly opposite to each other both (a) upon exiting the first port and the second port, respectively, and (b) up to a point within the wellhead where the first stream and the second stream meet, thereby combining the first stream and the second stream within the wellhead into a combined stream;pumping the combined stream into a hydrocarbon reservoir;pumping a treatment fluid comprising an acid spearhead with the second frac pressure pump into the wellhead, wherein the treatment fluid has a higher density than the first stream, and the treatment fluid is pumped to provide a fluid cap over the combined stream in the hydrocarbon reservoir; andsubjecting the combined stream in the hydrocarbon reservoir to fracturing pressures. 2. The fracturing method of claim 1 in which the lubricated proppant is lubricated with liquid. 3. The fracturing method of claim 2 in which the liquid is ungelled. 4. The fracturing method of claim 2 in which the liquid is gelled. 5. The fracturing method of claim 2 in which the liquid is free of liquefied petroleum gas. 6. The fracturing method of claim 2 in which the liquid comprises liquid hydrocarbons. 7. The fracturing method of claim 6 in which the liquid hydrocarbons comprise seven or more carbons per hydrocarbon molecule. 8. The fracturing method of claim 7 in which the liquid hydrocarbons comprise eighteen or less carbons per hydrocarbon molecule. 9. The fracturing method of claim 1 in which the liquefied petroleum gas further comprises hydrocarbons with four or more carbons per molecule in an amount of more than 50% by volume of the liquefied petroleum gas. 10. The fracturing method of claim 9 in which the hydrocarbon reservoir comprises oil and further comprising: flowing back injected fluids from the hydrocarbon reservoir; andsupplying the flowback fluids to an oil sales line. 11. The fracturing method of claim 10 further comprising, prior to supplying the flowback fluids to the oil sales line, diluting the flowback fluids with reservoir oil from the hydrocarbon reservoir. 12. The fracturing method of claim 1 in which the liquefied petroleum gas further consists essentially of propane, butane, or propane and butane. 13. The fracturing method of claim 1 in which the first port, the second port, and a wellhead axis form a Y-shape. 14. The fracturing method of claim 1 in which the first port, the second port, and a wellhead axis form a T-shape.

이 특허에 인용된 특허 (26)

Taylor,Robert S.; Funkhouser,Gary P.; Dusterhoft,Ronald G.; Lestz,Robert S., COmiscible optimized hydrocarbon blends and methods of using COmiscible optimized hydrocarbon blends.
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Fleming, Jeff T.; Pauls, Richard W.; Welton, Thomas D.; McMechan, David E.; Todd, Bradley L.; Bryant, Jason, Clean fluid systems for partial monolayer fracturing.
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Taylor,Robert S.; Funkhouser,Gary P.; Dusterhoft,Ronald G.; Lestz,Robert S.; Byrd,Audis, Compositions and methods for treating subterranean formations with liquefied petroleum gas.
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Weiss,Richard; George,Mathew; Funkhouser,Gary P., Difunctional phosphorus-based gelling agents and gelled nonaqueous treatment fluids and associated methods.
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Gupta D. V. Satya (The Woodlands TX) Cooney Aidan P. (The Woodlands TX), Encapsulations for treating subterranean formations and methods for the use thereof.
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Loree Dwight N.,CAX, Fracture treatment system for wells.
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McGuire,Bob; Dallas,L. Murray, Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same.
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Funkhouser,Gary P., Gelled liquid hydrocarbon treatment fluids having reduced phosphorus volatility and their associated methods of use and preparation.
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Sweatman Ronald E. (Cypress TX) Freeman Earl R. (Oklahoma City OK) Gottschling John (Williamstown WV), Method and apparatus for increasing the concentration of proppant in well stimulation techniques.
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Huang Wann-Sheng (Houston TX) Chien Sze-Foo (Houston TX), Method and apparatus for producing viscous hydrocarbons from a subterranean formation.
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Albers,Blair; Rieb,Bradley A.; Leshchyshyn,Tim; Thomson,James D.; Fordyce,Victor E., Method for fracture stimulating well bores.
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Norman Lewis R. ; Slabaugh Billy F. ; McCabe Michael A. ; Morgan Ronnie G., Method of forming and using particulate slurries for well completion.
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Shampine, Rod; Dwyer, Paul; Stover, Ronnie; Lloyd, Mike; Pessin, Jean-Louis; Leugemors, Edward; Welch, Larry D.; Hubenschmidt, Joe; Gambier, Philippe; Huey, William Troy; Allan, Tom, Method of pumping an oilfield fluid and split stream oilfield pumping systems.
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Taylor, Robert S.; Funkhouser, Gary P., Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids.
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Taylor, Robert S.; Funkhouser, Gary P., Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids.
상세보기
Taylor, Robert S.; Funkhouser, Gary P.; McCabe, Michael A.; Reddy, B. Raghava, Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids.
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Taylor,Robert S.; Funkhouser,Gary P., Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids.
상세보기
Taylor,Robert S.; Funkhouser,Gary P.; McCabe,Michael A.; Reddy,B. Raghava, Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids.
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Reddy,B. Raghava; Savery,Mark R., Methods for wellbore strengthening and controlling fluid circulation loss.
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Black Donald S. (Edmonton CAX), Mixture concentrator.
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Taylor,Robert S.; Lestz,Robert S.; Byrd,Audis; Dusterhoft,Ronald G.; Attaway,David; Funkhouser,Gary P., Optimized hydrocarbon blends and methods of using optimized hydrocarbon blends.
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Sweatman Ronald E. (Cypress TX) Freeman Earl R. (Oklahoma City OK) Gottschling John (Williamstown WV) Simon John (Ripley WV), Pneumatic transfer of solids into wells.
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Fordyce, Victor; Loree, Dwight, Proppant addition system and method.
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Bullen Ronald S. (700 703 6 Ave. Calgary ; Alberta CAX T2P 0T9), Proppant concentrator.
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George L. Scott, III ; Gary L. Covatch, Real-time reservoir fracturing process.
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Shampine, Rod; Dwyer, Paul; Stover, Ronnie; Lloyd, Mike; Pessin, Jean-Louis; Leugemors, Edward; Welch, Larry D.; Hubenschmidt, Joe; Gambier, Philippe; Huey, William Troy; Allan, Tom, Split stream oilfield pumping systems.
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