Label each picture with correct rotary system component and describe its composition.

2.__________________

1.__________

4. ____________

6. ___________________

5.______________

Match the words in the left column with the definitions in the right one.

There is one extra definition.

1. swivel	A. a device similar to a power swivel that is used in place of the rotary table to turn the drill stem.
2. kelly	B. the column of drill pipe with attached tool joints that transmits fluid and rotational power from the kelly to the drill collars and the bit.
3. rotary table	C. a special device placed around the kelly that mates with the kelly flats and fits into the master bushing of the rotary table.
4. drill stem	D. a rotary tool that is hung from the rotary hook and the traveling block to suspend the drill stem and to permit it to rotate freely.
5. drill string	E. seamless steel or aluminum pipe made up in the drill stem between the kelly or top drive on the surface and the drill collars on the bottom.
6. drill bit	F. a flexible tube for conveying liquids or gases under pressure
7. top drive	G. the principal component of a rotary, or rotary machine, used to turn the drill stem and support the drilling assembly.
8. hose	H. a heavy, thick-walled tube, usually steel, placed between the drill pipe and the bit in the drill stem.
9. drill pipe	I. a heavy coupling element for drill pipe.
10. drill collar	J. the cutting or boring element used for drilling
11. kelly bushing	K. all members in the assembly used for rotary drilling from the swivel to the bit.
	L. the heavy steel tubular device suspended from the swivel through the rotary table and connected to the top joint of drill pipe to turn the drill stem as the rotary table turns.

Listen to a top drive system description. Read the questions 1-5 and choose the answer - A,B,C or D - that best suits the information in the text.

1. What rotates the drill string when using a top drive system?

A. Rotary table

B. Drive shaft

C. Guide rails

D. Crew members

2. Which of the following is the advantage of the top drive?

A. It is cheaper to maintain than a rotary table system.

B. It requires less qualification of the driller.

C. It reduces drilling time.

D. It weights lighter that a kelly assembly.

3. According to the text, what helps a top drive system to prevent hole problems?

A. It allows drill string rotation at any hole point due to a wide range of rotating power.

B. It allows moving drilling rigs a short distance.

C. It allows reducing the number of connections of pipes.

D. It allows handling stands of pipes more efficiently.

4. Which of the following was mentioned as a disadvantage of a top drive system?

A. It requires an additional weight on a bit.

B. The drill string should be constantly maintained.

C. A drilling line wears faster.

D. It’s difficult to use it in highly deviated holes.

5. Which of the components is NOT included in a top drive system?

A. A rotary hose

B. An integrated swivel

C. A traveling block

D. A kelly

14. Lab. assignment: “Rotating Equipment, Mast and Structure”.

Date: 2016-01-14; view: 1075

<== previous page	\|	next page ==>
Rotary system components	\|	Underline the components or functions that are correct.

doclecture.net - lectures - 2014-2024 year. Copyright infringement or personal data (0.006 sec.)