It’s
mainly used to seal the circular
space between surface level sleeve
and Class I and II technical sleeve
and various levels sleeves of
oil level, which could reach the
purpose of one-time input and
permanent use.
The
product consists of main body,
slip seat, slip, bolt, root gasket,
lower sealing gasket, O-ring gasket,
upper sealing gasket, upper cap,
technological bolt, plug and other
components, which not only has
the characteristics of small volume,
light weight, low height, actual
installation convenience and flexibility,
and so on but also could be exposed
on ground after completion of
well drilling, so that it’s convenient
to later maintenance for the circular
space between the oil level and
surface and surface casing. The
casing head serial products manufactured
by our company ,the structural
innovation is the pressure between
the casing head and the main body
is below 34.5 Mpa, the casing
main body is directly connected
with the surface casing screw
thread, which has solved the technical
key of connection with the big
flange of well drilling blowout
preventer. After installation
of technical casings on well,
the abrasion prevention gasket
manufactured by our company could
be used for on-site installation
on various specifications of technical
casings, which has completely
solved the problem of technical
casing abrasion in the process
of well drilling. The internal
slip device is put into the main
body of casing head by means of
closing technique casing, the
internal structure is altered
by adopting the principle of pressure
increase, expansion and fastening,
and the sealing rubber root is
activated automatically, which
has realized the complete sealing
between the slip and the main
body of casing head and hanging
technique casing, and then the
casing head and the hanging technique
casing is completed turning into
one after installing the upper
cap and the Class II and III sealing
gaskets. The abrasion prevention
gasket could be dismantled after
completing well drilling, and
then the Christmas tree could
be installed directly to constitute
the oil extraction (gas) well
mouth device.
The
casing head could satisfy the
various technical requirements
during the process of well drilling,
could improve the standardization
level of well mouth installation,
could shorten the well construction
period, could reduce the worker’s
labor intensity, could improve
the work efficiency and have favorable
social benefit and economic benefit.
1. Technical Parameters
1.1. Specification Implemented:
API Spec 6A
1.2 Top Flange: 13 5/8 × 5000psi(BX-160)
1.3 Bypass Outlet: 2 × 5000psi
1.4 Working Medium: Petroleum,
LNG and Slurry
1.5 Bottom Connection: 10 3/4CSG
Sleeve Screw Thread
1.6 Rated Temperature: -29 ℃ -
121 ℃
1.7 Product Specification Class:
PSL2
1.8 Performance Requirement Class:
PR1
1.9 Rated Material Class: DD Ordinary
Acidity Working Condition
Product Characteristics:
The
design is advanced, the structure
is rational, the performance
is excellent, the installation
on-site is convenient and the
appearance is simple and graceful,
so that the products could satisfy
the various technical requirements
during the process of well drilling,
could improve the standardization
level of well mouth installation,
could shorten the well construction
period, could reduce the worker’s
labor intensity, could improve
the work efficiency and have
favorable social benefit and
economic benefit.
|
Casing head series
