Smart caliper and resistivity imaging logging-while-drilling tool (SCARIT)
AssigneeSaudi Arabian Oil Company
InventorPeter Ido Egbe
Life of this patent
Estimating the term…
Abstract
Systems and methods include a system for deploying and using a customized logging-while-drilling (LWD) tool. A command is provided by a tool control system to a mechanical drive of a LWD tool to cause pads and caliper fingers of the LWD tool to extend radially, lock in place using a locking mechanism, and begin to capture downhole measurements while the LWD tool is deployed in a borehole of a well. Pressure pulse cycles produced by a series of distinct high and low flow rates by the tool control system are provided to create pulses to be detected downhole by pressure transducers. A measurement sequence for caliper and resistivity images is triggered by the tool control system. The measurement sequence is terminated by the tool control system to conserve energy.
Claims20
A computer-implemented system, comprising:
- a logging-while-drilling (LWD) tool configured to concurrently perform logging while drilling and downhole measurements;
- a tool control system configured to control components of the LWD tool;
- one or more processors;
- and
- a non-transitory computer-readable storage medium coupled to the one or more processors and storing programming instructions for execution by the one or more processors, the programming instructions instructing the one or more processors to perform operations comprising:
- providing, by the tool control system, a command to cause pads and caliper fingers of the LWD tool to extend radially, lock in place, and begin to capture the downhole measurements while the LWD tool is deployed in a borehole of a well;
- providing, by the tool control system, pressure pulse cycles produced by a series of distinct high and low flow rates to produce pulses to be detected downhole;
- triggering, by the tool control system, a measurement sequence for caliper and resistivity images;
- and
- terminating, by the tool control system, the measurement sequence to conserve energy.
A computer-implemented method, comprising:
- providing, by a tool control system, a command to a logging-while-drilling (LWD) tool to cause pads and caliper fingers of the LWD tool to extend radially, lock in place, and begin to capture downhole measurements while the LWD tool is deployed in a borehole of a well;
- providing, by the tool control system, pressure pulse cycles produced by a series of distinct high and low flow rates to create pulses to be detected downhole;
- triggering, by the tool control system, a measurement sequence for caliper and resistivity images;
- and
- terminating, by the tool control system, the measurement sequence to conserve energy.
A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:
- providing, by a tool control system, a command to a logging-while-drilling (LWD) tool to cause pads and caliper fingers of the LWD tool to extend radially, lock in place, and begin to capture downhole measurements while the LWD tool is deployed in a borehole of a well;
- providing, by the tool control system, pressure pulse cycles produced by a series of distinct high and low flow rates to create pulses to be detected downhole;
- triggering, by the tool control system, a measurement sequence for caliper and resistivity images;
- and
- terminating, by the tool control system, the measurement sequence to conserve energy.
Dependencies are inferred from the claim text.