Lost circulation composition

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C507S213000, C507S232000, C507S269000, C507S104000, C507S110000, C507S126000

Reexamination Certificate

active

07629297

ABSTRACT:
A composition of matter and a method of sealing a permeable formation is provided incorporating the composition to reduce or eliminate lost circulation in permeable formations. The composition comprises one or more sealing components, ranging in size from approximately 10 to approximately 750 microns, a wetting component, a viscosifier component and an activator or flocculant. A dry mixture of the components may be added directly from the bag to the drilling mud to the permeable formation and will not set up inside the drill string. The mixture will seal the formation in an aqueous or organic environment, thus removing the need to form a pill in a slugging pit prior to introduction. The mixture dewaters at a rapid rate without regard to the time and temperature required for curing agents or other additives. The mixture does not require additional agents such as defoamers, accelerators, retarders or spacers to dewater and set as a solid plug.

REFERENCES:
patent: 4289632 (1981-09-01), Clear
patent: 5004553 (1991-04-01), House et al.
patent: 5826669 (1998-10-01), Zaleski et al.
patent: 6630429 (2003-10-01), Cremeans et al.
patent: 6825152 (2004-11-01), Green
patent: 6861392 (2005-03-01), Shaarpour
patent: 6932158 (2005-08-01), Burts, III
patent: 2001/0036905 (2001-11-01), Parlar et al.
patent: 2003/0186819 (2003-10-01), Shaarpour
Pine, Organic Chemistry, 1980 p. 833.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Lost circulation composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lost circulation composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lost circulation composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4081158

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.