Cementing plug

Standard plugs are applicable for various float collars and float shoes. The anti-rotation mechanism is designed for the anti-rotation plugs, improving drilling-off speeds greatly. Self-locking plugs are advanced technically and can be used safety; the product performance can reach the advanced level in China.

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Self-locking plug
The QZZS-A forced self-locking float collar and its associated self-locking plug (the plug also has the functions of forcing and self-locking) can provide effective self-locking and sealing. Through ground tests and the sit application of multiple wells, the tool is proven to have a reasonable structure. It can provide easy operation and reliable sealing, intentionally solving the series of problems caused by the cement plug that is left in the casing due to the non-return function failure of the float collar and the upward moving of the plug after cementing operation.
Resin roller centralizer
During the casing lowering in deep wells, extended reach wells and long horizontal drainholes, cuttings will be tucked in the slot space of the slotted rolling ball centralizer, which will lead to encumbered ball rolling, stronger friction and difficult casing lowering. The roller of the resin roller centralizer is made of bearing steel, ensuring both the bearing strength of itself and the minimum friction generated during steel ball rolling.
Single-plug cement head
Single-plug cement heads are used for cement injection.Single-plug cement heads can be connected to casings.
Double-plug cementing head
1. Equipped with quick connectors for easy connection; can be connected to API casing threads/drill stem threads, ensuring a wide application scope;2. Indicator used to indicate rubber plug drop (if any);3. Compensating pipes are mounted for easy baffle pin opening
Cementing tools---Thermal compensator
➣ The thermal compensator is connected into the casing string of the heavy oil thermal recovery well to provide effective compensation for the casing string elongation caused by steam injection process or the casing string shrinkage caused by carbon dioxide injection and other measures. In this way, casing deformation and damage caused by elongation or shrinkage can be prevented.
Integral centralizer
➣ Cut by laser integrally; heat treated; treated with powder coating;➣ High-precision machining technology meets the requirements of various sizes of boreholes;➣ No initial lowering resistance; with low friction and low torque;➣ Enhanced string centring support;➣ High strength, no weak point of stress, high reliability;➣ No separate components or welded parts;➣ Its elasticity can meet the requirements of lowering into reducing hole sections;➣ All indexes exceed the standards of API centralizers
Resin cyclone centralizer
It is characterized by a light weight, a small friction factor and high strength. Its reinforced polymer resin material is free of toxicity and light in weight; the material also has excellent mechanical properties, heat resistance, chemical corrosion resistance and self-lubricating property; it is easy to process thanks to its small friction factor.
Rigid centralizer
➣ Divided into the rigid centralizers with straight blades and spiral blades;➣ Applicable for the horizontal cementing of high-angle deviated holes;➣ The type with spiral blades effectively improves displacement efficiency;➣ Stream-lined structure, for easy casing lowering
Roller centralizer
➣ Used for centralizing and centring of the casing during completion operation of high-angle deviated holes and horizontal wells; the sliding friction generated between the lowered casing and the borehole wall can be changed into rolling friction, effectively reducing the friction caused during casing lowering.