Hydraulic Liner Hanger

‌‌RockySea Petro: A Pioneer in Hydraulic Liner Hanger Manufacturing in China

The liner hanger can be divided into two categories in terms of suspension methods: cement ring suspension and mechanical suspension. The safety of the cement ring hanging liner hanger is poor and it is rarely used; The mechanical liner hanger is reliable and easy to operate, with a wide range of applications.

RockySea can provide various liner hanger for oilfield operation with high quality and competitive price.

Description

The basic structure of the hydraulic liner hanger is shown in Figure 1. It consists of several parts: feeding tool, hanger, sleeve rubber plug short section, sleeve string, and collision pressure assembly. The accessories include pressure holding ball, liver drilling rubber plug, and ball fence.

Principle

The hanger is connected to the liner string and lowered to the sitting position. A pressure holding ball is inserted from the wellhead, and when the ball falls to the pressure holding support seat, the pressure is held from the wellhead. A pressure difference is formed between the inside and outside of the pipe, and the piston is pushed down to cut the hydraulic cylinder shear nail, driving the slip to move up along the cone and close to the inner wall of the upper casing. At this time, the pipe column is lowered to make the slip tooth stuck on the casing wall, achieving liner suspension. After sitting and hanging, apply pressure to hold the ball seat and open the circulation channel. The reverse connection between the forward drilling string and the hanger is used to prevent the loss of the liner after cementing.

Usage condition

1. The design hanging point position should avoid the upper casing coupling. Upper casing hanging point up and down 10.The pipe wall within a range of meters is clean, without hard adhesion, and the sleeve at the hanging point is not deformed. The inner diameter is more than 2mm smaller than the outer diameter of the hanger slip opening;

2. The wellbore is unobstructed, ensuring the smooth insertion of the tail pipe and hanger;

3. Ensure that the mud is clean, has strong suspension force, and does not precipitate heavier agents in a static state.

Feature

1. The sealing element is made of butadiene rubber and has a temperature resistance of 120 ℃.

2. Hydraulic control, achieving seat suspension, can be used for different wellbore conditions.

3. The hydraulic cylinder and body are made of high-strength alloy structural steel, which can ensure their mechanical properties.

Advantage

The liner hanger of RockySea has been proven to be mature and reliable through practical testing, and has the following advantages.

1. Suitable for casing window side drilling, deepening of old wells, and well repair operations;

2. The sealing core can be lifted out of the wellhead with the tool being fed in;

3. Both the rubber plug and ball seat are designed with locking mechanisms, which can prevent leakage and floating after being pressed;

4. The unique hydraulic cylinder design ensures more reliable seat suspension and can be used in different well conditions;

5. The reverse operation is simple, as long as the drilling tool is lowered by 3-5 tons and turned forward, the reverse can be easily opened;

Data sheet

Contact us

Any question about Hydraulic Liner Hanger ( Hydraulic Liner Hanger price,Hydraulic Liner Hanger for sale) ,please email service@rspetro.com , you will get reply within 12 hours!