PAULA DEL CAMPO RILO

DRILLING TECHNOLLOGY

Definitions

2013-2014

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MAIN RIG

Gooseneck: The gooseneck is a tubular piece that connects to the flexible hose with swivel

The drilling fluid enters the swivel by way of the goose neck, a

curved pipe connected to a high pressure hose.

We can define it also such us a thick, hollow metal elbow that

supports and provides a downward angle from which the Kelly

hose hangs.

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Pipe ramp, V-door: An opening at floor level in a side of a derrick or mast.

The v-door is opposite the drawworks and is used as

an entry to bring in drill pipe, casing, and other tools

from the pipe rack.

It is used to pick up drill pipe, drill collars or any

other heavy equipment that could not be done safely

because of the height of the substructure and close

proximity to the blowout preventers, electric and

hydraulic lines, and other equipment in the area.

The name comes from the fact that on the old

standard derrick, the shape of the opening was an

inverted v.

RIG FLOOR

Mousehole covered: It is the storage area on a drilling rig where the next joint of drilling pipe is

held until needed. This hole is in the floor of the rig, bored into the earth for a short ways, and

usually lined with a metal casing known as a scabbard.

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PRESSURE CONTROL SYSTEM

Annular blowout preventer: Blowout preventer is a large, specialized valve or similar

mechanical device, usually installed redundantly in stacks, used to seal, control and monitor oil

and gas wells.

Blowout preventers were developed to cope with extreme erratic pressures and uncontrolled

flow.

Blowout preventers come in a variety of styles, sizes and pressure ratings. Several individual units serving various functions are combined to compose a blowout preventer stack. Multiple blowout preventers of the same type are frequently provided for redundancy, an important factor in the effectiveness offail-safe devices.

The primary functions of a blowout preventer system are to:

Confine well fluid to the wellbore;

Provide means to add fluid to the wellbore;

Allow controlled volumes of fluid to be withdrawn from the wellbore.

Additionally, and in performing those primary functions, blowout preventer systems are used to:

Regulate and monitor wellbore pressure;

Center and hang off the drill string in the wellbore;

Shut in the well (e.g. seal the void, annulus, between drillpipe and casing);

“Kill” the well (prevent the flow of formation fluid, influx, from the reservoir into the wellbore) ;

Seal the wellhead (close off the wellbore);

Sever the casing or drill pipe (in case of emergencies).

Two types of blowout preventer are most prevalent:

Ram blowout preventer

Annular blowout preventer4

The annular blowout preventer was invented by Granville Sloan Knox in 1946; a U.S. patent for

it was awarded in 1952

It is a reinforced rubber seal or gasket surrounding the well bore. Upon application of pressure,

the seal around the tube is closed by closing the annular space. Can be applied progressively

closing on any size or shape of the well pipe. However, this ability does not cover irregularly

shaped tools such as stabilizers, or spiral drill collars. Also allows slow rotation and vertical

movements of the drill string while maintaining the closed annular space.

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DOWNHOLE COMPONENTS

Bottomhole assembly (BHA): It is a component of a drilling rig. It is the lower part of the drill

string, extending from the bit to the drill pipe.

The characteristics of the BHA help to determine the borehole shape, direction and other

geometric characteristics.

The BHA is used to help the drilling process; the proper selection of the right BHA would go a

long way in ensuring high ROP (rate of penetration) and thus help drill quickly and efficiently.

This would lead to lowered drilling costs.

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BHA Tools

Stabilizer: Used within a column of drill collars. They help guide the bit in the hole. They play a

major part in directional drilling as it helps determine the well-bore path and angle.

Solid

Stabilizer Replaceable Blade

Sleeve type

Reamers

Under-reamer: This is tool that is used to enlarge the well-bore, usually beginning at some

point under the surface. It does this by utilizing expandable cutters that only deploy at the

designated time or depth. It is not to be confused with hole opening which occurs from the

surface and in most cases the hole opener tool is of a fixed diameter.

Roller-cone

Under-reamer

Drag type

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Bibliography

http://molten.latinclicks.info/equipo_de_perforacion.htm

http://html.rincondelvago.com/componentes-del-equipo-de-perforacion.html

http://directionaldrilling.blogspot.com/2011_06_01_archive.html

http://www.proz.com/kudoz/english_to_spanish/petroleum_eng_sci/4460752-

v_door_ramp.html

http://www.iadclexicon.org/v-door-ramp/

http://en.wikipedia.org/wiki/Mousehole_(drilling)

http://en.wikipedia.org/wiki/Blowout_preventer#Annular_blowout_preventer

https://www.osha.gov/SLTC/etools/oilandgas/drilling/wellcontrol_bop.html

http://www.worldoil.com/October-2004-Advanced-drilling-technology-benefits-mature-

field.html