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In general, why are the Packers used?

In general, why are the Packers used? Correct Answer To isolate the annulus from production

Packers are used to isolate the annulus from production. There are many types of packers, e.g Retrievable and Non-Retrievable type packers. The packers can be mechanically or hydraulically actuating.

Related Questions

A warehouse has 20 packers.Each packer can load 1/8 of a box in 9 minutes. How many boxes can be loaded in 112 hours by all 20 packers ?
Production packers are generally classified as Retrievable and Permanent Packers.
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Which one of the following four addresses is NOT EXACTLY the same as the one given below? Beauty Mountain Whitewater Trippers, Inc. General Delivery Edmond, West Virginia 25837 (304) 574-­0211  (i) Beauty Mountain Whitewater Trippers, Inc. General Delivery Edmond, West Virginia 25837 (304) 574­-0211  (ii) Beauty Mountain Whitewater Trippers, Inc. General Delivery Edmond, West Virginia 25837 (304) 574-­0211 (iii) Beauty Mountain Whitewater Trippers, Inc.  General Delivery Edmond, West Virginia 25837 (304) 574-­0211   (iv) Beauty Mountain Whitewater Trippers, Inc.  General Deliver  Edmond, West Virginia 25837 (304) 574­0211 
Consider the following statements about the Comptroller and Auditor General of India. 1. The office of the Comptroller and Auditor General in the Constitution of India is substantially modeled upon that of the Auditor-General of India Act, 1935. 2. The Comptroller and Auditor General may be removed only on an address from both Houses of Parliament on the grounds of 'proved misbehavior' or 'incapacity'. 3. The term of office of the Comptroller and Auditor General shall be five years from the date on which he assumes office. Which of the statements given above is/are correct?
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Which of the following statement(s) is/are correct, regarding the duties and rights of the Attorney-General for India in performance of his duties?
1. The Attorney-General for India shall give advice to the Government of India upon legal matters.
2. The Attorney-General for India shall have a right to audience in all Courts in India.
3. The Attorney-General for India shall have the right to speak in the proceedings of either House.
4. The Attorney-General for India shall not be liable to any proceedings in any court in respect of anything said by him in Parliament or any committee thereof.
A party can be recognized as a State Party when : i. it secures 6% of the total valid votes polled in the state at a general election to the Legislative Assembly of the state concerned ii. it wins 2 Assembly seats at a general election to the Legislative Assembly of the state concerned iii. it secures 4% of the total valid votes polled in the state at a general election to the Lok Sabha of the state concerned iv. it secures 6% of the total valid votes polled in the state at a general election to the Lok Sabha of the state concerned
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