Inventor

LEISING LAWRENCE J

US25 patents

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

LEISING LAWRENCE J

SCHLUMBERGER TECHNOLOGY CORP

Methods and apparatus for controlled directional drilling of boreholes

Apparatus and method for orienting a downhole tool

Selective direct and reverse circulation check valve mechanism for coiled tubing

Disconnect check valve mechanism for coiled tubing

Method and apparatus to vibrate a downhole component

Apparatus for cleaning well tubular members

Apparatus and method for directional drilling with downhole motor on coiled tubing

Downhole tool actuation apparatus and method

System and method utilizing a compliant well screen

Apparatus and method to connect two parts without rotation

Method and apparatus to vibrate a downhole component

Method and apparatus to vibrate a downhole component

Method and apparatus for all multilateral well entry

System and method for forming cavities in a well

Downhole fluid pressure signal generation and transmission

System and method for creating packers in a wellbore

System and method for forming cavities in a well

Tubular injector apparatus and method of use

Downhole application for a backpressure valve

Re-enterable gravel pack system with inflate packer

Method and apparatus for multilateral well entry

Injector apparatus and method of use

Downhole valve utilizing degradable material

DOWELL A DIVISION OF SCHLUMBER

Drilling connector

Pressure compensated weight on bit shock sub for a wellbore drilling tool