Drilling Overview
Oil and Gas Drilling
Drilling is the primary work procedure of extracting petroleum from subsurface reservoir within rock. Drilling operation perform by using specialized equipment known as drilling rig with supporting equipment of different services and specialized drilling team to reach at ultimate goal of hydrocarbon production successfully and safely.
Drilling is most critical, risky & hazardous, expensive, target oriented & innovative work. Before drilling, it may need to ensure prospective geo structure by a process of seismic survey or related survey and by study of regional geology.
Normally oil and gas drilling operation perform in onshore & offshore upon the location of prospective geological structure. In view of drilling work different types of rig are used like land rig for onshore, Jack up rig for shallow sea, Tender & Semi submersible rig for deep sea, means offshore.
For the completion of drilling process might go through the procedures of planning, preparation of drilling site with rig & service equipment installation, specialized personnel in location and comply with health, safety and environment.
For successful completion of drilling activities the following services are involved, mainly
a) Drilling Rig is the main Contractor.
b) Mud Engineering service
c) Mudlogging service
d) Cementing service
e) Casing, Liner & Tubing service
f) M/LWD and DD service
g) Wireline and Slickline service
h) Testing and Completion service
i) Drill bit and Tools service
j) Catering service
k) Fishing service
l) Transportation and Logistic support service
Overall Drilling field Supervisory, Administration and Wellsite geology provided by the International Oil Company (IOC).
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| Rig Schematic |
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