Inventor

POP JULIAN J

US54 patents

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

POP JULIAN J

SCHLUMBERGER TECHNOLOGY CORP

Protective barriers for small devices

Down hole method for determination of formation properties

Down hole tool for determination of formation properties

Formation fluid sampling apparatus and methods

Downhole measurement of formation characteristics while drilling

System and methods for well data compression

Downhole measurement of formation characteristics while drilling

Method and apparatus for sampling high viscosity formation fluids

Formation evaluation while drilling

Downhole sampling tool and method for using same

Method for determining pressure of earth formations

Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation

Apparatus and method for formation evaluation

Multi-sensor contamination monitoring

Formation fluid sampling apparatus and methods

Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation

While drilling valve system

Method and apparatus to facilitate formation sampling

Method to estimate saturation pressure of flow-line fluid with its associated uncertainty during sampling operations downhole and application thereof

Method and apparatus for balanced pressure sampling

Downhole sampling tool and method for using same

Method and apparatus for balanced pressure sampling

Downhole sampling tool and method for using same

Modular connector

While drilling valve system

Pump control for auxiliary fluid movement

Job monitoring methods and apparatus for logging-while-drilling equipment

Wellbore fluid optical spectra extraction

Blended mapping for estimating fluid composition from optical spectra

Method for diagnosing optical spectrometers of downhole tools

Adaptive pump control for positive displacement pump failure modes

Reducing differential sticking during sampling

POP JULIAN J

Downhole measurement of formation characteristics while drilling

Downhole measurement of formation characteristics while drilling

Focused sampling of formation fluids

Methods and apparatus for planning and dynamically updating sampling operations while drilling in a subterranean formation

Focused sampling of formation fluids

Interference testing while drilling

VILLAREAL STEVEN

Adaptive pump control for positive displacement pump failure modes

Formation fluid sample container apparatus

DANIEL PIERRE J

Downhole mass spectrometric hydrocarbon determination in presence of electron and chemical ionization

Fluid expansion in mud gas logging

RAMSHAW SYLVAIN

Job monitoring methods and apparatus for logging-while-drilling equipment

Job monitoring methods and apparatus for logging-while-drilling equipment

MULLINS OLIVER C

Methods and apparatus to form a well

PARTOUCHE ASHERS

Modular connector and method

GOODWIN ANTHONY R H

Formation tester with low flowline volume and method of use thereof

CHANG YONG

Measurement pretest drawdown methods and apparatus

BUCHANAN STEVEN E

Formation coring apparatus and methods

VILLREAL STEVEN G

Adjustment of mud circulation when evaluating a formation