Power systems for wireline well service using wired pipe string
AssigneeSchlumberger Technology Corporation
InventorsAshers Partouche, Harold Steven Bissonnette, Shyam B. Mehta, Reza Taherian, Gbenga Onadeko, Shardul J. Sarhad
Life of this patent
Estimating the term…
Abstract
A wellbore instrument system includes a pipe string extending from earth's surface to a selected depth in a wellbore. The pipe string includes at least one of an electrical conductor and an optical fiber signal channel. A power sub including an electric power source is coupled proximate a lower end of the pipe string. At least one electrically powered wireline configurable wellbore instrument is coupled to the power source in the sub.
Claims7
1-22. (canceled)
A wellbore instrument system, comprising:
- a pipe string extending from earth's surface to a selected depth in a wellbore, the pipe string comprising wired drill pipe communicatively coupled at each joint;
- an adapter sub coupled to the pipe string proximate a lower end of the pipe string, the adapter sub including a source of electric power therein;
- at least one wireline configurable wellbore instrument coupled to the adapter sub on an opposite side of the pipe string;
- wherein the power source comprises a piezoelectric crystal configured to convert at least one of pipe vibrations and fluid pressure variations into electric power.
A method for well logging, comprising:
- moving at least one wireline configurable wellbore instrument along a wellbore at one end of a segmented pipe string, the pipe string including having a communication channel associated therewith;
- providing electrical power proximate a downhole end of the segmented pipe string to operate the wellbore instrument;
- communicating measurements from at least one sensor in the instrument to the signal communication channel;
- detecting the communicated measurements proximate a surface end of the communication channel;
- and
- wherein the providing electrical power comprises converting at least one of vibration in the pipe string and fluid pressure variation into stress on a piezoelectric crystal.
Dependencies are inferred from the claim text.