| US 7,472,752 B2 | ||
| Apparatus and method for forming multiple plugs in a wellbore | ||
| Henry E. Rogers, Duncan, Okla. (US); and Frank V. Acosta, Duncan, Okla. (US) | ||
| Assigned to Halliburton Energy Services, Inc., Duncan, Okla. (US) | ||
| Filed on Jan. 09, 2007, as Appl. No. 11/651,333. | ||
| Prior Publication US 2008/0164029 A1, Jul. 10, 2008 | ||
| Int. Cl. E21B 33/16 (2006.01) | ||
| U.S. Cl. 166—289 [166/177.4; 166/318; 166/291] | 22 Claims |
| 1. An apparatus for forming multiple plugs in a wellbore, comprising:
a first tubing section having an upper end and a lower end;
a first tool located below the first tubing section and connected in fluid communication with the lower end of the first tubing
section, the first tool comprising:
at least one body member having a bore for permitting a first volume of fluid to pass into the bore and discharge from an
end of the bore into the wellbore;
at least one port in the body member that communicates with the bore for permitting a second volume of fluid to pass into
the bore and discharge from the at least one port into the wellbore; and
means for normally covering the at least one port to permit the first volume of fluid to discharge from the end of the bore
into the wellbore, wherein the means is adapted to uncover the at least one port to permit the second volume of fluid to discharge
from the at least one port into the wellbore; and
a second tool located above the first tool and connected in fluid communication with the upper end of the first tubing section,
the second tool comprising:
an upper body member;
a lower body member coupled to the upper body member; and
means for decoupling the upper and lower body members to permit the upper body member, and any tubing sections above the upper
body member, to be removed from the wellbore.
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