加华维尔

CES-MSC-A Mechanical Two-stage Cementer is inner-closure structure. All parts are made of rubber plug and aluminum alloy materials with good drillability.

(2) CES-HSC-A Hydraulic Two-stage Cementer

CES-HSC-A Hydraulic Two-stage Cementer is inner-closure structure too. It opens the Circulation Outlet by pressure difference. The Circulation Outlet can be closed by Closing Piston.

Liner Hanger

Four types of Liner Hanger can be provided: CES-DYX-A, CES-SYX-A, CES-SSX-A and CES-XGS-A.
(1) CES-DYX-A Hydraulic Liner Hanger
CES-DYX-A Hydraulic Liner Hanger is single-cone & single-row slip structure. After injecting balls from the
wellhead, the high pressure liquid drives the piston and rod to move up, then the slip locks between the
cone and casing.

（2）CES-SYX-A Hydraulic Liner Hanger
CES-SYX-A Hydraulic Liner Hanger is double-cone & double-row slip structure. After injecting balls from the wellhead, the high pressure liquid drives the piston and rod ascending with slip and then the slip lock tighten between the cone and outer casing.

（3）CES-SSX-A Hydraulic Liner Hanger CES-SSX-A Hydraulic Liner Hanger is double-cone, double cylinder and double-row slip structure. After injecting balls from the wellhead, the high pressure liquid drives the piston and rod ascending with slip and then the slip lock tighten between the cone and outer casing.

（4）CES-XGS-A Hydraulic Liner Hanger
CES-XGS-A Hydraulic Liner Hanger is single-cone & single-row slip structure. After injecting balls from the wellhead, the high pressure liquid drives the piston and rod ascending with slip and then the slip lock tighten between the cone and outer casing.

（5）Running Tool
The running tool can run in Liner Hanger to set depth. After finishing the cementing, it can be released and pulled out of hole.

Centralizer

（1）Elastic Centralizer
It is CES-DCT casing centralizer. High strength spring steel is utilized to support the casing, make the casing centralized in wellbore and improve cementing quality.
（2）Rigid Centralizer
It is CES-GFZ rigid centralizer and capable of making the casing centralized in wellbore and improve cementing quality.
（3）Resin Centralizer
Specifications of the resin centralizers produced by Cavaville are as below:
5-1/2″×8-1/2″
7″×8-1/2″
7-5/8″×9-7/8″