Wellhead equipment,the product is customized a product.

The casing head assembly is the joint between the first casing string and the blowout preventer group or the wellhead. It is used to fix the wellhead of the drilling well, connect the wellhead casing string, and support the technical casing and oil layer casing. Gravity seals the annular space between each layer of pipes, providing transitional connections for the installation of blowout preventers, tubing heads, and Christmas trees. Through the two side ports on the casing head body, mud replenishment, monitoring and filling balance can be performed Liquid and other construction operations.

A casing hanger is also installed in the casing head to hang casing strings of corresponding specifications and seal the annular gap.

The side outlet can be connected with wire flange or thread according to customer requirements. The wire flange outlet has corresponding VR thread.

Casing head specification table

Type: Threaded, sliding, welded

Connecting sleeve outer diameter: 7-5/8 ~ 13-3/8 in (193.7 ~ 339.7 mm)

Suspension sleeve outer diameter: 4-1/2 ~ 9-5/8 inches (114.3 ~ 244.5 mm)

Working pressure: 2000 ~ 20000psi (14 ~ 140MPa)

Vertical aperture: 178 ~ 12-1/2 inches (178 ~ 318mm)

Working temperature: P·U (-29°C~121°C)

Material Class: AA~FF

Product specification level: PSL1-3

Performance RequirementGrade:PR1

Working pressure: 35Mpa~70Mpa

Hanger Specification: 4", 4 1/2", 5", 5 1/2", 7"

Load Capacity:≤5000KN

Casing Program: 20 " X13 3/8 " X9 5/8 " X 7 " or 5 1/2 "

Function:

1. Hang part or all of the weight of each layer of casings except the surface casings through a hanger;

2. Connect wellhead devices such as blowout preventers;

3. Establish a pressure seal between the inner and outer shell columns;

4. Provide outlets to relieve pressure that may build up between the two layers of casing strings;

5. In an emergency, fluids such as well killing fluid or fire extinguishing agent can be pumped into the well from the side hole of the casing head;

6.Special tasks:

a.If the cementing quality is poor, cement can be replenished from the side holes;

b.During acid pressure, pressure balancing fluid can be injected from the side hole.

7.Designed and manufactured in accordance with API Spec 6A.

Let’s work together and enjoy this job!

Sales Manager: Cherry Chi

Email: cherry@huichipetro.com

Mob/WhatsApp/We chat: +86 15553820372

  We are located in Dongying City, a city established because it owns China's second largest oil field "Shengli Oilfield". It is also the largest petroleum equipment manufacturing center in China. We Huichi have been sparing no effort to provide customers with the best products and services. All of our products come from advanced production lines, are designed and manufactured in accordance with API, ISO, GOST and other certifications, and undergo strict factory testing. 

    Our company's main products include: agricultural transportation tractors; crown block , traveling blocks, hooks, swivel, draw works, rotary turntables, wire line spooler, mud pumps and other oil drilling equipment; vibrating screens, sand pumps, centrifuges, shear Pump, desanders, desilters, vacuum degassers, mixers, mud guns, tank bottom valves, ignition devices; camping rooms, gas source rooms, dog house and wellsite duty house at wellsite.mud tanks, clean water tanks, diesel tanks and various round and square tanks; pumping units, pumps, pumping rods, oil pipes and other oil extraction equipment.