Patent application number | Description | Published |
20090165548 | SYSTEMS AND METHODS FOR WELL DATA ANALYSIS - Examples of techniques for analyzing well data which may be encountered during formation testing are disclosed. Certain portions of the tests may exhibit an indication of anomalous behavior, defects, errors or events that may have occurred during testing. One or more confidence tokens may be identified during or after the execution of a test. One or more of these confidence tokens may be analyzed to determine whether such anomalous behavior, defects, errors or events have occurred during the test. These confidence tokens may then be used to determine a level of confidence in the results derived from the tests performed and/or their underlying data and interpretation. | 07-02-2009 |
20090173493 | INTERFACE AND METHOD FOR TRANSMITTING INFORMATION TO AND FROM A DOWNHOLE TOOL - A downhole interface is disclosed that is positionable between a downhole tool, such as a wireline tool, and a wired drill string. The downhole tool communicates with the downhole interface which in turn communicates with the wired drill string to transmit information to the Earth's surface. The interface provides signal and power communication to the downhole tool. | 07-09-2009 |
20090261986 | DOWNLINK WHILE PUMPS ARE OFF - A system and method for communicating with a downhole tool is disclosed. In one embodiment, a telemetry system for communicating with a downhole tool in a wellbore includes a first electrode. A modulated electric current flows from the first electrode through a formation to the downhole tool. The telemetry system also includes a downlink box, which provides the modulated electric current to the first electrode. The downhole tool comprises a sensor unit, which detects the modulated electric current. The telemetry system includes a second electrode that allows the modulated electric current to return to the downlink box. The telemetry system also includes an uplink telemetry, wherein the uplink telemetry does not comprise electromagnetic telemetry. In some embodiments, the downlink may be operated while mud pumps are turned off. The downlink may also be operated while the downhole tool is sending uplink telemetry by a method other than electromagnetic current. | 10-22-2009 |
20100116550 | INTERFACE AND METHOD FOR WELLBORE TELEMETRY SYSTEM - For use in a drilling operation that includes uphole electronic equipment ( | 05-13-2010 |
20100175925 | PUMP CONTROL FOR FORMATION TESTING - A while-drilling tool comprising a motor, a transmission coupled to the motor, and a pump comprising a first piston disposed in a first chamber and a second piston disposed in a second chamber and coupled to the first piston. A planetary roller-screw is coupled between the pump and the transmission. A valve block is configured to fluidly communicate with the first and second pump chambers, a borehole in which the while-drilling tool is configured to be positioned, and a formation penetrated by the borehole. | 07-15-2010 |
20100264646 | STRUCTURES FOR WIRE ROUTING IN WIRED DRILL PIPE - A wire routing structure for a pipe joint includes a conductor conduit extending from one tool joint of a pipe joint to another tool joint of the pipe joint in a pattern having at least one component not aligned with a longitudinal axis of the pipe joint. In one example, the length of the conduit is selected such that the conduit is in axial compression. In another example, the conduit is disposed in a composite material structure affixed to an interior wall of the pipe joint. In another example, at least one tool joint in the pipe joint has a bore subtending a selected angle with respect to a longitudinal axis of the tool joint selected to induce the conduit when inserted therethrough to follow a helical pattern about the interior of the pipe joint. | 10-21-2010 |
20110042072 | METHOD AND SYSTEM FOR USING WIRELINE CONFIGURABLE WELLBORE INSTRUMENTS WITH A WIRED PIPE STRING - A wellbore instrument system includes a pipe string extending from earth's surface into a wellbore. At least a portion of the pipe string includes a signal communication channel having a cable, such as an electrical conductor or an optical fiber. At least one wireline configurable wellbore instrument is coupled to the pipe string and has at least one sensor therein for measuring a physical parameter. The at least one instrument is in signal communication with the signal communication channel in the pipe string. The system includes a controller functionally associated with the at least one instrument and configured to initiate operation of the at least one sensor upon detection of a command signal. | 02-24-2011 |
20110276187 | PUMP CONTROL FOR FORMATION TESTING - A downhole formation fluid pumping and a sampling apparatus are disclosed that may form part of a formation evaluation while drilling tool or part of a tool pipe string. The operation of the pump is optimized based upon parameters generated from formation pressure test data as well as tool system data thereby ensuring optimum performance of the pump at higher speeds and with greater dependability. New pump designs for fluid sampling apparatuses for use in MWD systems are also disclosed. | 11-10-2011 |