Inventor

CHEN YIYAN

US71 patents

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

CHEN YIYAN

SCHLUMBERGER TECHNOLOGY CORP

Internal breaker for oilfield treatments

Internal breaker for oilfield treatments

Well treatment with dissolvable polymer

Gravel packing method

Degradable material assisted diversion

Polymer delivery in well treatment applications

Rheology modifiers

Additive for viscoelastic fluid

Carbon dioxide foamed fluids

Internal breaker for oilfield fluids

Viscoelastic surfactant fluids stable at high brine concentration and methods of using same

Viscoelastic surfactant rheology modification

Oxidative internal breaker for viscoelastic surfactant fluids

Viscosity reduction

Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same

Internal breaker for oilfield fluids

Viscoelastic surfactant rheology modification

Viscoelastic surfactant rheology modification

Foamed viscoelastic surfactants

Pickering emulsion treatment fluid

Carbon dioxide foamed fluids

Rheology enhancers

High solids content slurries, systems and methods

Surfactants not toxic to bacteria

Using a biphasic solution as a recyclable coiled tubing cleanout fluid

Well treatment with ionic polymer gels

Polymeric rheology modifiers

MI LLC

Systems and methods for monitoring and/or predicting sagging tendencies of fluids

Effective pour point depressants for amidoamine emulsifiers

Branched acid emulsifier compositions and methods of use

Amidoamine synthesis, methods to track the reaction process

High performance water based fluid

Invert emulsifiers from DCPD copolymers and their derivatives for drilling applications

CHEN YIYAN

Shear-activated viscoelastic surfactant fluid and method

Viscoelastic surfactant acid treatment

Shear-activated viscoelastic surfactant fluid and method

ABAD CARLOS

System, method and apparatus for enhancing wellbore treatment fluid flexibility

System, method and apparatus for enhancing wellbore treatment fluid flexibility

System, method and apparatus for enhancing wellbore treatment fluid flexibility

LOISEAU ANTHONY

Hydrolyzable particle compositions, treatment fluids and methods

Methods to improve stability of high solid content fluid

PANGA MOHAN K R

Proppant pillar placement in a fracture with high solid content fluid

GU HONGREN

Methods to create high conductivity fractures that connect hydraulic fracture networks in a well

SHENZHEN WISE-TECH ENG CONSULTING CO LTD

Flexible pier

SHENZHEN MUNICIPAL DESIGN & RES INST CO LTD

Aseismic combined pier

PANGA MOHAN

High solids content slurries, systems and methods

AHRENST ALEX

Friction reduction fluids

SULLIVAN PHILIP F

Polymer delivery in well treatment applications

LI YONG

Arch bridge

CAMERON INT CORP

Coupling agents for use in corrosion inhibiting compositions