Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2006-09-18
2008-07-15
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S280100, C166S300000
Reexamination Certificate
active
07398829
ABSTRACT:
Methods for treating a formation penetrated by a wellbore which improves fluid loss control during treatment. In some aspects, the treatments include preparing an aqueous fluid including one or more water inert polymers and an optional viscosifier, injecting the aqueous fluid into the wellbore at a pressure equal to or greater than the formation's fracture initiation pressure, and thereafter injecting into the wellbore a proppant laden fluid at a pressure equal to or greater than the formation's fracture initiation pressure. The water inert polymer may be a polymer such as an emulsion polymer or a latex polymer. Some methods of the invention use a fluid which may have a normalized leak off coefficient (Cw/sqrt(K)) equal to or less than about 0.0022, 0.0014, or 0.0010. A conventional fluid loss additive may or may not be used in conjunction with the treatment fluid and/or the proppant laden fluid. The water inert polymer may or may not substantially enter formation pores. In another aspect, methods for reducing matrix damage to a formation during a treatment operation include preparing an aqueous treatment fluid formed of at least one water inert polymer, and injecting the fluid at a pressure equal or greater than the formation's fracture initiation pressure.
REFERENCES:
patent: 3711405 (1973-01-01), Fischer et al.
patent: 3815680 (1974-06-01), McGuire et al.
patent: 3851709 (1974-12-01), Fitch et al.
patent: 4107057 (1978-08-01), Dill et al.
patent: 4233165 (1980-11-01), Salathiel et al.
patent: 4456067 (1984-06-01), Pinner, Jr.
patent: 4579668 (1986-04-01), Messenger
patent: 4809783 (1989-03-01), Hollenbeck et al.
patent: 4846277 (1989-07-01), Khalil et al.
patent: 5009267 (1991-04-01), Williamson et al.
patent: 5046562 (1991-09-01), Crema et al.
patent: 5110486 (1992-05-01), Manalastas et al.
patent: 5213160 (1993-05-01), Nahm et al.
patent: 5227422 (1993-07-01), Mitsuji et al.
patent: 5238065 (1993-08-01), Mondshine et al.
patent: 5318382 (1994-06-01), Cahill
patent: 6069118 (2000-05-01), Hinkel et al.
patent: 6169058 (2001-01-01), Le et al.
patent: 6171386 (2001-01-01), Sabins
patent: 6192985 (2001-02-01), Hinkel et al.
patent: 6306800 (2001-10-01), Samuel et al.
patent: 6328105 (2001-12-01), Betzold
patent: 6412561 (2002-07-01), Brown et al.
patent: 6435277 (2002-08-01), Qu et al.
patent: 6599863 (2003-07-01), Palmer et al.
patent: 6637517 (2003-10-01), Samuel et al.
patent: 6703351 (2004-03-01), Stowe et al.
patent: 6823940 (2004-11-01), Reddy et al.
patent: 6935426 (2005-08-01), Rainbolt et al.
patent: 7013995 (2006-03-01), Crawshaw et al.
patent: 7066260 (2006-06-01), Sullivan et al.
patent: 2002/0023752 (2002-02-01), Qu et al.
patent: 2002/0185278 (2002-12-01), Brown et al.
patent: 2003/0019627 (2003-01-01), Qu et al.
patent: 2003/0060374 (2003-03-01), Cooke, Jr.
patent: 2004/0094300 (2004-05-01), Sullivan et al.
patent: 2005/0252659 (2005-11-01), Sullivan et al.
patent: 2005/0257932 (2005-11-01), Davidson et al.
patent: 2006/0032636 (2006-02-01), Lord et al.
patent: 2006/0041060 (2006-02-01), George et al.
patent: 2006/0065397 (2006-03-01), Nguyen et al.
patent: 2006/0102344 (2006-05-01), Surjaatmadja et al.
patent: 2006/0144595 (2006-07-01), Milligan et al.
patent: 2007063317 (2007-06-01), None
SPE 26664—The Effects of Unbroken Fracture Fluid on Gaswell Performance—by G.W. Voneiff, B.M. Robinson and S.A. Holditch—SPE Production & Facilities, Nov. 1996.
SPE 38619—The Effect of Yield Stress on Fracture Fluid Cleanup—by E.A. May, L.K. Britt and K.G. Nolte—presented at the 1997 SPE Annual Technical Conference and Exhibition held in San Antonio TX Oct. 5-8, 1997.
Abad Carlos
Dessinges Marie Noelle
Hutchins Richard D.
Nelson Erik
Bates Zakiya W.
Cate David
Gaudier Dale
Nova Robin
Schlumberger Technology Corporation
LandOfFree
Methods of limiting leak off and damage in hydraulic fractures does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods of limiting leak off and damage in hydraulic fractures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of limiting leak off and damage in hydraulic fractures will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3966684