Product Name: Simple Pressure resistant Casing Head
Product Overview: The simple pressure resistant casing head is a
well completion wellhead device developed by our factory after many
years of research and development. Its quality has been evaluated
by the bureau to meet or exceed the level of similar products.
It has been widely used in deep wells of Zhongyuan Oilfield and is
highly welcomed by drilling teams. The JGT-21C simple pressure
resistant casing head has enabled our factory to successfully
develop a well completion wellhead device based on the JGT-21B
model, with more reliable sealing performance.
Execution standard: SY/T5127-2002 The structure mainly consists of sealing gaskets,
plugs, bolts, tightening pressure plates, and the body. The body is
composed of two parts, each with a testing pressure and cement
extrusion channel. Specification of casing head: 244 × 140, 340 ×
140, 340 × 244 series.
1. The main body is divided into two sections. The middle section
is equipped with two rubber gaskets, and the lower section is
equipped with two compressed pressure plates, which are tightened
with eight screws to fill the 95/8 "casing annulus with the
gaskets, ensuring long-term sealing effect and improving sealing
life.
2. There are two plugs installed on both sides of the main body.
Facilitating wellhead pressure testing, cement extrusion, and
casing remediation work. If casing remediation is required, simply
lift the 51/2 "casing by 8-10 cm, remove the casing head, test the
pressure at the wellhead or inject cement. Simply remove the plug
and install the corresponding injection pipeline (with a diameter
of 58.5 × 11 threads/inch).
Scope of supply:
Working pressure: from 2,000psi to 20,0000psi
Nominal diameter: from 2.1/16” to 5.1/8”
Working medium: crude oil, gas, drilling fluid, gas contained H2S,
CO2
Working temperature: -46℃ to 121℃ (L U)
Material class: AA, BB, CC, DD, EE, FF
Specification level: 1-4
Performance requirement: 1-2
To complete with air or hydraulic safety valve at option
Rated Operating Pressure PSI(MPa) | Nominal Bore Dia.
in(mm) | Min. Vertical Bore Dia in(mm) | Bypass Bore Dia. in(mm) | Tubing Outer Dia in(mm) |
| 2000(13.8) | 2 9/16"~7 1/16"
(65~180) | 6 1/4"~10"
(159~254) | 1 13/16"~4 1/16"
(46~103) | 1.90"~4 1/2"
(48.3~114.3) |
| 3000(20.7) | 2 9/16"~7 1/16"
(65~180) | 6 1/4"~10"
(159~254) | 1 13/16"~4 1/16"
(46~103) | 1.90"~4 1/2"
(48.3~114.3) |
| 5000(34.5) | 2 9/16"~7 1/16"
(65~180) | 6 1/4"~10"
(159~254) | 1 13/16"~4 1/16"
(46~103) | 1.90"~4 1/2"
(48.3~114.3) |
| 10000(69.0) | 2 9/16"~7 1/16"
(65~180) | 6 1/4"~10"
(159~254) | 1 13/16"~4 1/16"
(46~103) | 1.90"~4 1/2"
(48.3~114.3) |
| 15000(103.5) | 2 9/16"~7 1/16"
(65~180) | 6 1/4"~10"
(159~254) | 1 13/16"~4 1/16"
(46~103) | 1.90"~4 1/2"
(48.3~114.3) |
| 20000(138.0) | 2 9/16"~7 1/16"
(65~180) | 6 1/4"~10"
(159~254) | 1 13/16"~4 1/16"
(46~103) | 1.90"~4 1/2"
(48.3~114.3 |
