RockySea Petro Frac Wellhead And Christmas TreeIn the process of oil recovery, multistage fracturing of horizontal wells is currently the most advanced technology in the world and represents the development direction of oil and gas production technology. Multistage fracturing technology is to strictly control the number, diameter, and phase of perforation in several or more horizontal sections with better reservoir along the horizontal wellbore, according to the physical properties and the character
VIEW DETAILSRockySea Petro Casing Head And Tubing HeadRockySea Petro casing heads strictly conform to the International standard, and are among the most reliable oilfield casing heads. Usually, the casing head lies at the bottom of the wellhead and X-mas tree equipment. It supports the drilling wellhead, the casing head spool, the X-mas tree and completion equipment. The casing head is used to connect the casing string and packing off the next casing string. The connecting type includes slip-on weld, thread and slip l
VIEW DETAILSRockySea Petro Hydraulic Diaphragm Metering PumpRockySea Petro Petro: A Pioneer in Hydraulic Diaphragm Metering Pump Manufacturing in ChinaHydraulic diaphragm metering pump, one kind of plunger diaphragm metering pump, is a metering pump designed by combining the characteristics of plunger metering pump and diaphragm metering pump. The contact part between the metering pump and the metered medium is a diaphragm, while the driving part is a hydraulic plunger.FeatureThe hydraulic diaphragm metering
VIEW DETAILSRockySea Oilfield Steam BoilerSupercritical Oilfield Steam Injection BoilerDesulfurization and Denitrification Oilfield Steam BoilerProduced-water Oilfield Steam GeneratorSuperheated Oilfield Steam BoilerHigh-dryness Steam Injection BoilerThe Oilfield Steam Boiler is a Once Through Steam Generators with a forced circulation rate of 1. The pressure of medium flow is generated from the plunger pump. This steam injection boiler is mainly used for heavy oil recovery and extra-heavy oil recovery. Oilf
VIEW DETAILSRockySea Petro 3NB Series Mud PumpData sheetFunction1. Remove rock debris from the bottom of the well and send it back to the surface;2. Handle complex underground situations. When encountering fractured formations, pump in plugging materials, and when encountering stuck drilling, pump in crude oil and diesel to release the stuck.3. Make mud cakes on the wellbore to prevent collapse;4. Balance or control the pressure of oil, gas, and water layers in the drilled well section to prevent blowout;5
VIEW DETAILSRockySea Petro Float Collar and Float
Data sheet
Advantage
RockySea has extensive experience in manufacturing float hoops and shoes, and its products have the following advantages.
1) The reliable valve body structure reduces the resistance of cement slurry flow.
2) All internal accessories are drillable and have the same diameter as the casing.
3) The special structural design effectively prevents the backflow of cement slurry.
4) The buckle can be processed into BTC/LTC/STC/VAM/FOX/TP-CQ/OTTM according to customer requirements.
Application
The float collar and float shoe are mainly used to guide the casing string into the well smoothly, adjust the buoyancy force on the casing string when running the casing, prevent the cement slurry from flowing back into the casing through the back pressure valve, accurately control the height of the cement plug inside the casing during cementing, and ensure the quality of cementing. Float hoops and float shoes are generally used in sets, with the float shoe located at the bottom of the casing and 1-2 sleeves separated between the float hoops and float shoes.
Principle
The floating hoop structure is basically the same as the floating shoe, except that its lower end is a male buckle connected to the casing. The floating shoe body is made of alloy structural steel material, with the upper end connected to the casing and the lower end made of hemispherical cement or metal head, used to guide the casing down. It is equipped with a backpressure valve inside, which can be drilled with a PDC drill bit. The upper and lower channels of the valve are open when leaving the factory. When the casing is first inserted, the liquid in the well has no resistance to the float shoe. The pressure of circulating mud will push the valve head down by one displacement, and the three flaps at the end of the valve stem will automatically fall off. After stopping the pump, the valve will press the valve seat upwards under the action of the spring, acting as a one-way valve. At this point, drilling fluid or cement slurry can be pumped in from top to bottom, but the liquid inside the casing under the valve or in the annular space outside the casing cannot return.
Description
Floating collar is a casing coupling equipped with a single flow valve, which belongs to one of the casing accessories. Structurally, it is divided into two types: nylon ball float collar and spherical steel valve float collar. The former is used for shallow wells, while the latter is used for deep well.
In deep wells and special wells, it can be combined with casing float shoes to improve the safety of cementing operations. During the process of running casing, achieving unidirectional flow of drilling fluid in the annulus can prevent cement slurry backflow during the cementing process and achieve pressure relief and waiting for setting after cementing collision, which helps to improve the bonding quality between the cement sheath and casing; At the same time, by injecting drilling fluid into the casing string to adjust its buoyancy, the suspended weight of the casing meets the design requirements for casing operation.
RockySea Petro: A Pioneer in Float collar and Float shoe Manufacturing in China
The float collar and float shoe are mainly used to guide the casing string into the well smoothly, adjust the buoyancy force on the casing string when running the casing, prevent the cement slurry from flowing back into the casing through the back pressure valve, accurately control the height of the cement plug inside the casing during cementing, and ensure the quality of cementing.
Send us your requirement, Let RockySea Petro support you !
RockySea Petro Copyright © 2008-2025 Inc. SITEMAP
