Drop-in check valve, as an important tool to prevent well kick and a inside BOP, which is dropped into well and prevent well kick and blowout just as necessary, is used to control the inner pressure of drilling rod as running/retrieving drill is forced under well kick or a certain pressure. For it is not connected with drilling rod, it is convenient to execute various drilling operation.
As overflow happens under ground, , the check valve is dropped or pumped into the water hole of the Kelly, and moves to be held against the shoulder of the stop ring connected with the bottom of the on-station connector, the cone of the valve moves up, some hackle lock teeth of on-station connector and the teeth-block in the top of the check valve are locked each other, the cone moving up forces packer to dilate so as to seal the bore-wall, in the bottom hole sets steel ball and spring, the spring can load the steel ball into the sealing seat of the valve body, so that a strict seal mechanism is formed, here the on-station connector and check valve assembly composes a set of internal-BOP assembly.
|
Sizes |
Customer Requirements |
|
End Connection |
Threads of API Spec 7-2
or
API Spec 5CT
PIN or BOX |
|
Pressure Rating |
5000/10000/15000psi(34.5/68.9/103.4MPa) |
|
Class |
Class 1 or 2 |
|
Supplemental Requirement |
Gas-Tight Sealing
H2S Trim |
Shanghai WIN Mechanical Technology Co., Ltd (hereinafter abbreviated as WINMT) was founded in 2010. It is an international Petroleum, Petrochemical and Natural Gas Industry equipment company specializing in export of Wellhead & Christmas Tree Equipment, 6A Valves, Choke & Kill Manifold Assemblies and Systems, Drill-through Equipment (RAM BOP and Annular BOP), BOP Control Systems (Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment), Kelly Valves, Pump for Pressure Testing, Drilling Choke Controls, General Industry Valves (6D Valves & Globe/Butterfly Valves), Spare Parts, and Forging Products.
WINMT has been striving to become a well-known international supplier of Petroleum, Petrochemical and Natural Gas Industry equipment, and had been committing to provide wonderful products and services for global manufacturers, service providers, purchaser and users. WINMT has established and been operating an excellent and advanced Marketing Mode to ensure that we can purchase wonderful Raw Material and Equipment at competitive prices so that we can reduce overseas customers' Purchasing Costs.
We have been operating a QMS in accordance with ISO 9001: 2008, ISO/TS 29001: 2010 & API Spec Q1 8th Edition, which was accepted by 3rd Party Agency.
WINMT in China
We have a large sales network to promote foreign-made equipment to enter China's market successfully. We also have a set of perfect Supply Chain management system and Procedures to ensure that the overseas purchasers and users can effectively manage Chinese suppliers and manufacturers through WINMT.
WINMT in Overseas Markets
WINMT has a large number of overseas purchasers and customers in Petroleum, Petrochemical and Natural Gas Industry so that we can provide domestic suppliers and manufacturers with overseas sales channels and information.
WINMT's Advantages
WINMT has established and operated a set of perfect Supply Chain management system and Procedures to Select, Evaluate and Re-evaluate the Raw Material Suppliers and Equipment Manufactures in accordance with the Criteria based on the Product Specifications and Industry Requirements.
WINMT has established good and close relationships with Raw Materials Suppliers and Equipment Manufacturers in China.
WINMT will place orders to Raw Material Suppliers and Equipment Manufactures along with the detailed product and process control requirements after successful Supplier Evaluation.
WINMT will plan and perform the effective Supervision to the Material Suppliers and Equipment Manufacture to ensure that the products can meet the specified purchase requirements and can be delivered in time.
WINMT is inviting overseas purchasers and users to discuss on the cooperation with us.
Future Development
WINMT will establish the Product Facility and then to become a Product Manufacturer and Product & Service Supplier.
WINMT will also become the API Monogram Licensee of 6A/6D/7-1/16A/16C/16D and provide the customers with Super Quality Product and Service.
