The document discusses the upstream oil sector, which involves searching for and extracting crude oil and natural gas. It describes the process of using 3D seismic investigations to identify oil reserves underground, then drilling oil rigs to access the oil. There are different types of rigs used for onshore versus offshore drilling. The drilling process involves installing casing pipes and other equipment to prepare the well for production.

1. A.Ragavendar

2.  The upstream oil sector is a term commonly
used to refer to the searching for and the
recovery and production of crude
oil and natural gas. The upstream oil sector is
also known as the exploration and production
(E&P) sector.

3.  The3D seismic investigation used to Identify
the oil source in the earth.
 Oncethe Oil reserve Is predicted the drilling
process will be taken.

4.  The drilling of oil can be done by Oil Rigs.
 There are many type of oil rig present according to
the type of shore
 On Onshore
 Sucker rod and Well head assembly are employed
in onshore drilling.
 Offshore
 *A Shallow water complex *A Gravity base
 *Floating Production & Subsea Production System.

5.  Seismic Inspection.
 Construction of Rig platform
 Drilling
 Completion

7.  It involves more equipments to build a rig to
perform the drilling operation.

8. Well casing
Conductor casing
Surface Casing
Intermediate Casing
Production casing

9.  Refers to the process of finishing the well so
that it is ready to produce oil

10. Drill Pipe
API 5D SMLS Steel pipe
Grade X-95, G-105
Casing pipe
API 5 CT
Grade H-40, J-55
Tubing
API 5 CT

11.  AMEC
 Acergy
 Aker Solutions
 Ausclad Group

12. Thank You