Tool Introduction:

The dual cylinder hydraulic retrievable packer is a hydraulic setting retrievable packer that can be lowered into one or more simultaneously. The packer, which is particularly suitable for mechanical and cable sealing, is not suitable for entering large angle inclined or horizontal wells. Two or more packers can be sealed at once or sequentially sealed according to the designed order. This packer is widely used in various production and stimulation measures such as layered oil recovery, layered water injection, acidification, fracturing, etc.

Structural features:

① The highest safe sealing is on P-110 steel grade casing;

② Cleverly designed pistons ensure the anchoring of the slip and sufficient compression of the rubber cylinder;

③ Under the sealed system, bidirectional anchoring ensures a sturdy seal that can withstand bidirectional pressure differentials;

④ The unique ratchet locking ring device will lock and maintain the sealing force, ensuring long-lasting and effective sealing;

⑤ Lift the ban;

⑥ The sealing force and unsealing force can be adjusted as needed;

⑦ When lowering and retrieving, the lower clamp remains tightened, ensuring safe operation and easy lifting.

Operation:

When pressing and sealing, hydraulic pressure acts on the upper and lower pistons. Firstly, the lower piston descends to cut off the locking ring, retaining ring, and various cutting pins on the slip sleeve. The lower piston drives the upper cone to descend, thereby opening the slip to complete the sealing process; At the same time, the upper piston moves upward to cut off the shear pin on the oil drain sleeve, and then drives the steel cylinder and the oil drain sleeve guide ring to continue to move upward to compress the rubber cylinder. The higher the pressure, the greater the piston thrust, the tighter the rubber cylinder, and the more significant the sealing effect; The more the cone squeezes, the greater the tension of the two-way clamp, making the two-way anchoring more effective. When unsealing, simply lift up and cut off the release sleeve with the cutting pin, and then continue to lift it up, unsealing the rubber cylinder and slip successively.

Technical parameters: