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US 2011/0031972 A1Published application
Method and system of determining an electrical property of a formation fluid
AssigneeHalliburton Energy Services, Inc.
InventorsMichael T. Pelletier, Li Gao
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Abstract
Determining an electrical property of a formation fluid. At least some of the illustrative embodiments are methods comprising drawing formation fluids into a tool within a borehole, applying a swept frequency electric field to the formation fluids by way of a first winding, inducing a current flow in a second winding based on the swept frequency electric field, and determining a property of the formation fluids based, at least in part, on the current flow in the second winding.
Claims22
A method comprising:
- drawing formation fluids into a tool within a borehole;
- applying a swept frequency electric field to the formation fluids by way of a first winding;
- inducing a current flow in a second winding based on the swept frequency electric field;
- and
- determining a property of the formation fluids based, at least in part, on the current flow in the second winding.
2 more elements
A method comprising:
- drawing formation fluid into a tool within the borehole;
- making a first measurement of an electrical property of the formation fluid, the first measurement proximate to entry of the fluid into the tool;
- discharging at least a portion of the formation fluid from the tool;
- and
- making a second measurement of an electrical property of at least a portion of the formation fluid that exits the tool, the second measurement proximate to an exit point of formation fluid from the tool.
2 more elements
A down hole tool comprising:
- a tool body that defines a first inlet port and a first outlet port;
- a contact pad coupled to the tool body that selectively abuts a borehole wall, the contact pad defines a flow path fluidly coupled to the first inlet port;
- and
- a first electrical winding mechanically coupled to the contact pad, the electrical winding moves with the contact pad, and the electrical winding circumscribes the flow path;
- the tool pulls formation fluids through the contact pad and into the first inlet port, and discharges a portion of the formation fluids out the first outlet port;
- and
- the tool makes a first measurement of an electrical property of the formation fluid using, at least in part, the electrical winding on the contact pad.
4 more elements
A down hole tool:
- a tool body that defines a first inlet port and a first outlet port;
- and
- a first electrical winding suspended within the first inlet port;
- the tool pulls fluids through from a proximate formation into the first inlet port, and the tool discharges a portion of the fluids out the first outlet port;
- and
- the tool makes a first measurement of an electrical property of the formation fluid using, at least in part, the electrical winding suspended in the fluid.
3 more elements
Dependencies are inferred from the claim text.