Inventor

MANDAL BATAKRISHNA

US66 patents

⚠️ This page may combine multiple inventors who share the name “MANDAL BATAKRISHNA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MANDAL BATAKRISHNA

HALLIBURTON ENERGY SERV INC

Logging a well

Acoustic method of connecting boreholes for multi-lateral completion

Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties

Acoustic logging while drilling tool to determine bed boundaries

Ultrasonic imaging in wells or tubulars

Method to determine self-calibrated circumferential cased bond impedance

Rotating multi-parameter bond tool

Acoustic logging tool having quadrupole source

Acoustic signal processing method using array coherency

Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties

Acoustic signal processing method using array coherency

Acoustic logging tool having programmable source waveforms

Acoustic logging apparatus and method

Dipole/monopole acoustic transmitter, methods for making and using same in down hole tools

Method and apparatus to create a down-hole video log to transmit down-hole video data

Method and apparatus for generating acoustic signals with a single mode of propagation

Acoustic signal processing method using array coherency

Attenuation mapping apparatus, systems, and methods

HALLIBURTON ENERGY SERVICES INC

Measuring frequency-dependent acoustic attenuation

Determining characteristics of a fluid in a wellbore

Acoustic method and apparatus for cement bond evaluation through tubing

Downhole fluid detection using surface waves

Real-time adaptive minimum phase wavelet generation for downhole tools

In-situ borehole fluid speed and attenuation measurement in an ultrasonic scanning tool

Bender bar modal shaping

Casing and cement evaluation tool with reduced transmitter ringing

Acoustic monitoring of well structures

Dynamic gain system with azimuthal averaging for downhole logging tools

Apparatus and methods for monitoring the retrieval of a well tool

Mud settlement detection technique by non-destructive ultrasonic measurements

Acoustic calipering and analysis of annulus materials

Ultrasonic transducers with piezoelectric material embedded in backing

Methods for evaluating cement bonding

RODDY CRAIG W

Use of micro-electro-mechanical systems (MEMS) in well treatments

Use of micro-electro-mechanical systems (MEMS) in well treatments

Use of micro-electro-mechanical systems (MEMS) in well treatments

Use of micro-electro-mechanical systems (MEMS) in well treatments

Use of micro-electro-mechanical systems (MEMS) in well treatments

MANDAL BATAKRISHNA

Acoustic transducer apparatus, systems, and methods

Method of controlled pulse driving of a stacked PZT bender bar for dipole acoustic radiation

Monoconductor data-power transmission

Acoustic signal processing using model-based adaptive filtering

Ultrasonic imaging in wells or tubulars

GAS RES INST

System and method for providing dual distance transducers to image behind an acoustically reflective layer

System and method for processing acoustic signals to image behind reflective layers

Transducer configuration having a multiple viewing position feature

Sensor configuration for nulling reverberations to image behind reflective layers

GEERITS THEODORUS W

Acoustic logging-while-drilling tools having a hexapole source configuration and associated logging methods

COOPER PAUL

Acoustic velocity measurements using tilted transducers

BONAVIDES CLOVIS

Programmable data acquisition for tubular objects