Float shoes contain a backpressure valve that prevents fluids from entering the casing while the pipe is lowered into the hole and prevents cement from flowing back into the casing after placement, while enabling circulation down through the casing.
Float collars are placed one to three joints above the guide shoe or float shoe. They provide a seat for the cement plugs, the bottom plug pumped ahead of the cement and the top plug behind the full volume of slurry. Once seated, the top plug shuts off fluid flow and prevents over-displacement of the cement. The space between the float shoe and the float collar provides a containment area to entrap the likely-contaminated fluids from the wiping action of the top cementing plug, securing the contaminated fluid away from the shoe where a strong cement bond is of primary importance. Float collars include a backpressure valve and serve basically the same function as the float shoe.
Features:
The Aluminum Alloys used in this product are PDC Drillable.
Available in 5 1/2â?� to 20â?� sizes. Customized sizes are also available.
Applications:In all applications ranging from close tolerance liners to full casing strings.
Standard float shoe is provided with round cement nose to deflect offledges or obstructions.
Customizable options including nose types, ports/jets, and ball deflector.
Can be supplied either in Single Valve or in Double valve.
Sucker rods are manufactured according to API 11B Specifications. Currently, we market 3 types of API sucker rods Grade D Alloy and Grade D Special which are formulated from different alloysï¼?AISI 4130 (Grade D), AISI 4142 (Grade D) and AISI 4720 (Grade KD).
Manufacturing Process:
1. Rod Bar
The incoming rod bars are inspected for any damage, fault and discontinuities.Before arranging the rod bars for production process, carry out chemical composition testing, dimensional inspection & surface quality inspection. High quality standard is maintained at various stage inspections.
2.Manufacturing
Rod bars are manufactured from hot rolled alloy steel. Rod bars are machine straightened and cold drawn to the required size. The rod bar ends are hot forged according to API designed sizes. The rods are then heat treated over the full length.As per requirement of mechanical properties, the rods are normalized and tempered to the specified level or quenched and tempered to the required hardness and strength. Care is taken to achieve metallographic structure with no residual stresses in the rod.A sample specimen is cut from the heat treated material and is tested for ultimate tensile strength, yield strength and elongation. The rod is then again checked for straightness. The forged ends are properly aligned with its body. Rods are cleaned by shot-blasting to remove any scale and oxidation. The forged ends are machined on C.N.C. Lathe machines as per API dimensions and checked with API approved gauges.
Cementing Plug Conventional Type
A rubber cementing plug used to separate the cement slurry from other fluids, reducing contamination and maintaining predictable slurry performance. Two types of cementing plugs are typically used on a cementing operation. The bottom plug is launched ahead of the cement slurry to minimize contamination by fluids inside the casing prior to cementing. A diaphragm in the plug body ruptures to allow the cement slurry to pass through after the plug reaches the landing collar. The top plug has a solid body that provides positive indication of contact with the landing collar and bottom plug through an increase in pump pressure.
Features:
Cementing plugs are manufactured of graded rubber that is fused upon a composite or Aluminum core.
These plugs are completely PDC drillable.
Operating range of temperature with Aluminum core is up to 200 degree Fahrenheit.
Plug can be ordered for higher operating temperature and operation in either synthetic or mud fluids.
Available in 4 1/2" to 20 "sizes + any special sizes.
Spiral vane steel solid rigid centralizers are developed in response to the need for better cementing in high deviated and horizontal well.Spiral vane steel solid rigid centralizers are designed to provide optimum flow area.The 360degrees overlapping solid vane provides maximum wall contact and fluid swirl.Reduced flow area between the spiral blades produces a vortex motion of the fluids for more fluid velocity with direction.The 30-degree slope of the vane end reduces drag and aids the caing in reaching TD.
This gentle flow from the body to the height of the vane will eliminate scraping,gouging or digging into the formation and consequently reduce balling between the vanes.Spiral vane steel solid centralizer has high impact and shock resistance combined with tensile and yield strength as well as resist corrosion.The Spiral vane solid rigid centralizer is normally 8" long, but it can be manufactured to any length the customer requires.
These centralizers are available with or without set screws for eliminating of stop collars.
Spiral vane solid rigid centralizers are available for casing Sizes 4 ½� to 20�.Any special sizes are available on request.
Tubing
Tubing
1) Size: O.D. 1.900", 2-3/8", 2-7/8", 3-1/2", 4-1/2"
2) Grade: J55, N80, L80, C90, T95, P110
3) Wall thickness: 3.18 - 10.54mm
4) Length: R1,R2,R3
5) Thread: 8RD and 10RD
6) All our Tubing accord with API SPEC 5CT standard, and we get the right to use the API 5CT LOGO.
Size Desination Weight Desination Outside Diameter Wall Thickness Type of End Finish
Grade
T&C Non-Upset T&C External Upset in mm in mm J55 K55 L80 N80 C90 T95 P110
1.900 2.40 - 1.900 48.26 0.125 3.18 PI - - - - -
2.75 2.90 0.145 3.68 PNUI PNUI PNUI PNUI PNUI -
3.65 3.73 0.200 5.08 PU PU PU PU PU PU
4.42 - 0.250 6.35 - P - P P -
5.15 - 0.300 7.62 - P - P P -
2 3/8 4.00 - 2.375 60.3 0.167 4.24 PN PN PN PN PN -
4.00 4.70 0.190 4.83 PNU PNU PNU PNU PNU PNU
5.80 5.95 0.254 6.45 - PNU PNU PNU PNU PNU
6.60 - 0.259 7.49 P P P P P -
7.35 7.45 0.336 8.53 PU PU PU PU PU -
2 7/8 6.40 6.50 2.875 73.02 0.217 5.51 PNU PNU PNU PNU PNU PNU
7.80 7.90 0.276 7.01 - PNU PNU PNU PNU PNU
8.60 8.70 0.308 7.82 - PNU PNU PNU PNU PNU
9.35 9.45 0.340 8.64 - PU - PU PU -
10.50 - 0.392 9.96 - P - P P -
11.50 - 0.440 11.18 - P - P P -
3 1/2 7.70 - 3.500 88.9 0.216 5.49 PN PN PN PN PN -
9.20 9.30 0.254 6.45 PUN PUN PUN PNU PNU PUN
10.20 - 0.289 7.34 PN PN PN PN PN -
12.70 12.95 0.375 9.53 - PUN PUN PNU PNU PUN
14.30 - 0.430 10.92 - P - P P -
15.50 - 0.476 12.00 - P - P P -
17.00 - 0.530 13.46 - P - P P -
4 9.50 - 4.00 101.6 0.226 5.74 PN PN PN PN PN PN
10.70
11.00 0.262 6.65 PU PU PU PU PU PU
4 1/2 12.60 12.75 4.500 114.3 0.271 6.88 PNU PNU PNU PNU PNU -
15.20 - 0.337 8.56 - P - P P -
17.00 - 0.380 9.65 - P - P P -
18.90 - 0.430 10.92 - P - P P -
21.50 - 0.500 12.70 - P - P P -
23.70 - 0.560 14.22 - P - P P -
26.10 - 0.630 16.00 - P - P P -
API 5DP drill pipe is a kind of steel pipe with screw thread in the pipe end. It is used for connecting ground rig equipment and drill grinding equipment at the bottom of drilling wells. The main purpose of drill pipes is to transport drilling mud to the drill bit. It rises up, lowers and rotates together with the drill bit. Its strength must withstand the pressure, torque, vibration and other forces caused by the drill hole. In the oil and gas exploration and refining process, API 5DP drill pipe can be used for multiple times. ZS provides a number of drill pipes available in various sizes and weights to meet the drilling needs of companies in the oil and gas industry.
Functions of Drill Pipe
API 5DP drill pipe is mainly applied in oil and gas exploration and development, such as in the construction of deep wells, horizontal wells and large-displacement wells. Its main functions are as follows:
Drill pipes deliver torque and drive the drill bit to drill wells.
Exert pressure that can break the rock at the bottom of well on the drill bit.
API 5DP drill pipe transmits flushing fluid. Through the ground high-pressure slush pump or mud pump, drill mud enters into the inner hole of drill string, flows into the bottom of well to wash rock debris and to cool down the drill bit, passes through the annular space between the drill string outer surface and well wall (carrying rock debris), returns to the ground.
Heavy Weight Drill Pipe (short for HWDP) is the industry standard for an intermediate weight drill stem member and is available in standard, spiraled and non-magnetic designs making it useful in a number of applications. It has drill pipe dimensions for easier handling. Heavy weight drill pipe utilizes a center upset or wear pad to increase tube life, reduce hole drag and minimize differential sticking problems. is an intermediate weight drill stem component which is used in conjunction with the drill pipe and drill collars.
Features of Heavy Weight Drill Pipe
Extra-length tool joints provide ample space to recut the connections, reduce the wear rate on the OD and extend service life.
The center upset protects the tube from OD wear by keeping the tube away from the hole wall, while at the same time reducing the risk of differential sticking.
The API boreback box stress relief feature is standard for the box connection on 4â?� Heavy Weight Drill Pipe and larger, helping to extend the service life of the connection.
Cold rolling the thread roots on all Heavy Weight Drill Pipe connections increases the connectionâ??s ability to resist fatigue cracking.
Heavy Weight Drill Pipe can be picked up with the drill pipe elevators, for fast and efficient handling on the rig floor.
Application
Directional Drilling:
An effective weight-on-bit member in extended reach, horizontal and conventional directional well designs.
Improved directional control by reducing torque and drag.
The center upset helps reduce the risk of differential sticking.
Vertical Drilling:
Use as an active weight-on-bit member.
Heavy Weight Drill Pipe can be used to provide a portion of the anticipated drilling weight when using soft formation PDC rock bits.
