Schlumberger Investment SA

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Automatic Shelf Registration