RockySea Petro Polished RodRockySea Petro can supply polished rods which comply with intl standard. They are manufactured through many processes including the testing, straightening and forging. Polished rods are made of high quality carbon steel and alloy steeldue to customer request. Ourpolished rods are exported to the United States, Canada, Europe, Africa and Middle East, and we establish cooperative relationships with international customers all over the world.Description The polished rod is a sp
VIEW DETAILSRockySea Petro Steam Injection And Oil Recovery WellheadGeothermal wellhead & x-mas treeBlowout preventer Steam Injection and Oil Recovery Integration wellhead & x-mas treeSteam injection and oil recovery dual tubing wellhead & x-mas treeSingle column dual-well thermal recovery wellhead & x-mas treeOnshore thermal recovery wellhead & x-mas treeConventional Steam injection and oil recovery wellhead & x-mas treeRockySea Petro has more than 40 years of experience in oil and gas wellhead & x-mas tree and valve
VIEW DETAILSRockySea Petro Large Displacement Tubing PumpNote: if our client needs different specifications and models of special oil well pump, we can also design and manufacture according to the parameters and requirements provided by the client.These special oil well pumps have novel structure, reliable performance, superior pump efficiency, and long service life, and have been widely used in various oilfields.RockySea Petro has developed a series of special oil well pumps suitable for different well conditions.Bas
VIEW DETAILSRockySea Petro Choke ValveThe strictest quality standards on Choke valve25 years Choke valve manufacturing experienceFull support on your customised requirementRockySea Petro Petro manufactures Choke valve in China. We have our own factory of Choke valve. RockySea Petro Petro provide the high quality and competitive price on Choke valve for you. Contact us now for Choke valve quotation.Description The choke valve is a type of control valve which is designed to accurately control the flow rate of the wellhead
VIEW DETAILSRockySea Petro Tubing AnchorDatasheetAdvantage1. Drain oil smoothly when rotating the tubing2. Own less sealing parts and high reliability3. Max applicable well depth: 2500m TypeRockySea Petro's oil pipe anchors can be divided into two categories: mechanical and hydraulic. Below, we will introduce our company products in detail.Type 1Mechanical oil pipe anchors rely on the frictional force between the friction block and the casing wall to achieve clamping. It can be further divided into:(1).
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.
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