Inventor

LI SHANJUN

US30 patents

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

LI SHANJUN

LI SHANJUN

Turntable

Methods and systems for determining formation parameters using a rotating tool equipped with tilted antenna loops

Cheese board

Storage rack

Multi-array laterolog tools and methods with differential voltage measurements

Focused array laterolog tool

Method of estimating anisotropic formation resistivity profile using a multi-component induction tool

Storage box

System and methodology of cross casing resistivity tool

Instrument structure and measuring method for cross-casing resistivity tool

Systems and methodology for detecting a conductive structure

System and methodology of look ahead and look around LWD tool

System and method to improve accuracy of galvanic tool measurements

System and method of focusing an array laterolog

BITTAR MICHAEL S

System and method for EM ranging in oil-based mud

Real time determination of casing location and distance with tilted antenna measurement

Efficient inversion systems and methods for directionally-sensitive resistivity logging tools

Processing and geosteering with a rotating tool

Method and apparatus for downhole measurement tools

Multi-array laterolog tools and methods

HALLIBURTON ENERGY SERVICES INC

Methods and systems for determining formation parameters using a rotating tool equipped with tilted antenna loops

Systems and methodology for detecting a conductive structure

NIE XIAOCHUN

Multi-array laterolog tools and methods with split monitor electrodes

US ENERGY

Ultraviolet light absorbers having two different chromophors in the same molecule

WEATHERFORD TECHNOLOGY HOLDINGS LLC

Apparatus and method for simultaneously obtaining quantitative measurements of formation resistivity and permittivity in both water and oil based mud

TANG YUMEI

Real-time casing detection using tilted and crossed antenna measurement

WEATHERFORD TECH HOLDINGS LLC

Apparatus and method for simultaneously obtaining quantitative measurements of formation resistivity and permittivity in both water and oil based mud

UNIV HARBIN ENG

Active control method for filtered reference affine projection sign algorithm based on variable step size

SHANGHAI BLOKS TECH GROUP CO LTD

Method and system for networking of spliced building blocks, and spliced building blocks applicable to wireless networking

SAN MARTIN LUIS EMILIO

Apparatus and method for temperature independent balancing of a tool