| US 7,516,802 B2 | ||
| Assembly and method for determining thermal properties of a formation and forming a liner | ||
| Harry D. Smith, Jr., Houston, Tex. (US) | ||
| Assigned to Halliburton Energy Services, Inc., Houston, Tex. (US) | ||
| Filed on Oct. 29, 2007, as Appl. No. 11/926,906. | ||
| Application 11/412459 is a division of application No. 10/457645, filed on Jun. 09, 2003, granted, now 7,086,484. | ||
| Application 11/926906 is a continuation of application No. 11/412459, filed on Apr. 27, 2006, granted, now 7,334,637. | ||
| Prior Publication US 2008/0053702 A1, Mar. 06, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. E21B 7/14 (2006.01); E21D 11/00 (2006.01) | ||
| U.S. Cl. 175—171 [175/50] | 17 Claims |
| 1. An apparatus for determining the thermal properties of a downhole formation and forming a temporary liner in a wellbore
extending into the formation comprising:
a coiled tubing drillstring extending into the wellbore;
a drilling assembly supported by the drillstring, the drilling assembly comprising:
an extruder that extrudes a liner material onto a wall of the wellbore;
a heat source that heats the liner material and the formation;
more than one spatially separated temperature sensor to measure a temperature of the formation associated with the heat from
the heat source; and
a processor to receive temperature signals as a function of time from the more than one temperature sensor and derive an indication
of thermal properties of the formation.
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