Boring or penetrating the earth – Boring with explosion in inaccessible hole
Patent
1994-06-28
1995-06-06
Novosad, Stephen J.
Boring or penetrating the earth
Boring with explosion in inaccessible hole
166293, 166297, 166300, 175 46, E21B 43117
Patent
active
054214181
ABSTRACT:
Prior to pumping completion brine fluid into a wellbore, an additive comprising two percent (2%) of a 0.25% solution of polyacrylamide is blended into the completion brine fluid thereby producing a treated brine fluid. This blending would be performed in tanks at the wellsite. The treated brine fluid is then pumed into the wellbore. In addition, or in the alternative, a new perforating gun stores the polyacrylamide additive composition. When the perforating gun detonates, the additive is disbursed into the completion brine fluid disposed in the annulus of the wellbore. For example, the new perforating gun may include a plurality of shaped charges coated with a lacquer of the polyacrylamide additive, or it may include one or more containers which contain the polyacrylamide additive. When the brine completion fluid is pumped into the wellbore annulus, a detonation wave conducts in a detonating cord of the perforating gun. The detonation wave passes through each of the containers. As a result, the containers will rupture and the plurality of shaped charges will detonate. Since the containers each ruptured, the polyacrylamide additive composition from the containers will be disbursed into the brine completion fluid in the annulus. In addition, or in the alternative, since the shaped charges of the new perforating gun were coated with a lacquer of the polyacrylamide composition, when the shaped charges detonated, the polyacrylamide composition on the zinc charge debris mixes with the brine fluid in the wellbore annulus. Zinc oxychloride hydrate debris is formed as a reaction product. However, the presence of the polyacrylamide additive in the zinc oxychloride hydrate debris will inhibit the formation of hardened chunks of a cement-like material in the annulus of the wellbore.
REFERENCES:
patent: 3909423 (1975-09-01), Hessert et al.
patent: 4060490 (1977-11-01), Bernard
patent: 4262746 (1981-04-01), Hammett
patent: 4307782 (1981-12-01), Schievelbein
patent: 4553596 (1985-11-01), Graham et al.
Aseltine Clifford L.
Brooks James E.
Nelson Erik B.
Bouchard J. H.
Garrana H. N.
Novosad Stephen J.
Schlumberger Technology Corporation
LandOfFree
Apparatus and method for mixing polyacrylamide with brine in an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for mixing polyacrylamide with brine in an , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for mixing polyacrylamide with brine in an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-981070