Puyang Zhongshi Group Co., Ltd.

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.

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