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US 2003/0196799 A1Published application
Method of tracking fluids produced from various zones in subterranean wells
AssigneeHalliburton Energy Services, Inc.
InventorsPhilip D. Nguyen, Jimmie D. Weaver, Johnny A. Barton
Life of this patent
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Abstract
Compositions and methods for determining the source of treatment fluids being produced from a production formation having multiple zones.
Claims47
A method of treating a subterranean formation having multiple zones penetrated by a well bore comprising:
- providing a plurality of treatment compositions comprising a tracking material, wherein the tracking material is selected from the group consisting of water soluble inorganic salts, water soluble organic salts, metals, metal salts of organic acids, phosphorescent pigments, fluorescent pigments, photoluminescent pigments, oil soluble dyes, oil dispersible dyes and oil dispersible pigments, and wherein each treatment composition comprises a different tracking material;
- introducing a different treatment composition into each zone in the subterranean formation through a well bore;
- flowing fluid back from the subterranean formation whereby at least a portion of at least one of the treatment compositions flows back from the subterranean formation;
- and
- identifying each zone in which the at least one treatment composition was introduced by detecting the tracking compositions in the fluid that flows back from the subterranean formation.
2 more elements
A method of propping multiple fractures in a subterranean formation penetrated by a well bore comprising:
- placing a proppant composition in each fracture in the subterranean formation, wherein each proppant composition comprises particulate material and a tracking composition, and wherein each proppant composition comprises a different tracking composition;
- flowing fluid back from the subterranean formation whereby at least a portion of at least one of the proppant compositions flows back from the subterranean formation;
- and
- identifying each fracture in which the at least one proppant composition was placed by detecting the tracking compositions in the fluid that flows back from the subterranean formation.
1 more element
A traceable treatment composition for treating a subterranean formation having multiple zones penetrated by a well bore comprising:
- a tracking material, wherein the tracking material is selected from the group consisting of water-soluble inorganic salts, water soluble organic salts, metals, metal salts of organic acids, phosphorescent pigments, fluorescent pigments, photoluminescent pigments, oil soluble dyes, oil dispersible dyes and oil dispersible pigments.
Dependencies are inferred from the claim text.