| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073152170 | With detail of a borehole wall engaging means | 6 |
| 20110138903 | FOLDING ULTRASONIC BOREHOLE IMAGING TOOL - A borehole logging tool includes a housing oriented along a longitudinal axis, and a centralizer assembly that positions the housing substantially at the center of the borehole. In one example, the centralizer assembly includes a plurality of centralizer arms radially extendable outward from the longitudinal axis. The borehole logging tool further includes a scanning head that rotates a plurality of scanning sensors axially within the borehole about the longitudinal axis. The scanning head further includes a plurality of linkage arms coupled to the plurality of scanning sensors such that the scanning sensors are radially extendable outward from the longitudinal axis. The borehole logging tool further includes an extension assembly adapted to substantially concurrently control the radial extension of the centralizer arms and the plurality of sensors. | 06-16-2011 |
| 20130104641 | APPARATUS AND METHODS FOR ORIENTING, STABILIZING, OR STABLY OPERATING A LOGGING TOOL | 05-02-2013 |
| 20130255367 | APPARATUS, METHOD AND SYSTEM FOR MEASURING FORMATION PRESSURE AND MOBILITY - An apparatus, method and system are provided for characterizing fluid trapped in a subterranean formation using a downhole tool that includes an elongated body and a probe body. The probe body is moveable from and back into the elongated body. The probe body defines a flow line and supports a pressure sensor for measuring fluid pressure in the flow line, a piston and an electrical motor actuator that is adapted to move the piston in order to vary volume of the flow line. The integral electrical motor actuator, piston, pressure sensor and flow line of the probe body can provide for measurement of formation pressure and/or formation mobility. | 10-03-2013 |
| 20140305200 | IN SITU GEOPHYSICAL SENSING APPARATUS METHOD AND SYSTEM - An apparatus for in situ geophysical sensing includes a sensor for measuring geophysical data and a liquid absorbent member connected to the sensor that expands in response to contacting a liquid and thereby physically couples the sensor to a local sensing environment. The liquid absorbent member may be formed of beads or pellets or powder that includes a liquid absorbent material. The liquid absorbent member may also include a soluble binding agent for binding the beads or pellets or powder into an integral member such as a casing for containing the sensor. A method and system corresponding to the apparatus are also described herein. The apparatus, method and system described herein may be used to improve borehole sensor data quality without adding significant complexity to the borehole sensor deployment process. | 10-16-2014 |
| 20140311234 | CONTROLLING FORMATION TESTER PROBE EXTENSION FORCE - A formation tester for use in a subterranean well can include a probe which extends outward into contact with an earth formation, and an adjustable flow control device which limits an extension pressure applied to extend the probe. A method of testing a subterranean formation can include positioning a formation tester in a wellbore, extending a probe of the formation tester outward into contact with the formation, and limiting a force applied by the probe to the formation, the limiting being performed by variable actuation of a flow control device downhole. Another formation tester can include a probe which extends outward into contact with an earth formation, with a force applied by the probe to the formation being remotely adjustable downhole. | 10-23-2014 |
| 20150052988 | APPARATUS FOR SINGLE DEGREE OF FREEDOM INERTIAL MEASUREMENT UNIT PLATFORM RATE ISOLATION - A borehole logging instrument sonde employs a case in which support electronics including a processor are mounted. A rotatable platform is mounted within the case and carries an inertial measurement unit (IMU) and a roll axis gyroscope. A motor is adapted to rotate the rotatable platform within the case. The processor receives an input from the roll axis gyroscope and provides an output to the motor responsive to the input for control of rotation of the platform to space stabilize and isolate the IMU from the roll of the instrument sonde. | 02-26-2015 |
