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Drilling Wellhead Tools: The Five “Guardians” Safeguarding Oil and Gas Extraction
In oil and natural gas extraction, drilling operations are a high-risk and highly technical core process. As a critical hub connecting underground oil and gas reservoirs to surface systems, the safety and stability of the drilling wellhead directly determine the success or failure of operations. ...Read more -
Rotary Steerable System (RSS)
A Rotary Steerable System (RSS) is a steerable drilling system that, while the drill string is rotating, monitors and controls the rotation of the drill pipe in real time to perform steering functions, enabling drilling operations to reach the target formation more precisely. It is widely used in...Read more -
Downhole Positive Displacement Motor (PDM Drill)
A PDM (Positive Displacement Motor) drill is a downhole positive displacement motor that uses drilling fluid as power to convert hydraulic energy into mechanical energy. When the mud pumped by the mud pump flows through the bypass valve and enters the motor, a certain pressure differential is for...Read more -
Downhole Key Tools: A Complete Guide to Classification and Application of Roller Cone Bits and Diamond Bits
In oil drilling operations, the drill bit is the core tool for breaking rock, and its performance directly affects drilling efficiency and cost. Faced with complex and variable formation conditions, correctly selecting roller cone bits and diamond bits has become a key task for drilling engineers...Read more -
Why use casing stabilizers?
Casing Centralization Using casing centralizers is an important measure to improve cementing quality. The purpose of cementing is twofold: first, to isolate unstable, lost-circulation, or other complex intervals with casing, thereby providing protection for continued safe and smooth drilling; sec...Read more -
Workover Tools | Drilling-Milling-Milling Class | Positive Displacement Motor
1. Applications Powered by hydraulic pressure, the PDM drives the downhole drilling assembly in rotation, enabling operations such as drilling, milling, and sidetracking. 2. Structure The PDM primarily consists of a top sub, bypass valve, stator, rotor, coupling, water passage sub, bearing...Read more -
Five Common Wellhead Tools
Elevator Links (Bails) Structure and Principle The elevator link is a special wellhead tool used to suspend elevators when running and pulling pipe strings during drilling and workover operations. It requires high load capacity, impact resistance, light weight, safety and reliability. The upper...Read more -
Directional Drilling Technology；Drill Pipe；Drill Cuttings
Directional drilling technology is an advanced drilling method that employs specialised downhole tools and measurement control techniques to extend the drilling trajectory along a pre-designed (non-vertical) path to the target formation. The essence of directional drilling lies in activel...Read more -
Happy Chinese New Year 2026 – Holiday Notice
Dear All, As we approach the Year of the Horse (2026), we would like to inform you of the upcoming Chinese New Year holiday arrangements. �� Holiday Period: From: Saturday, February 14, 2026 To: Sunday, February 22, 2026 Work resumes on: Monday, February 23, 2026 The Year of the Snake has been a ...Read more -
Well Repair Tools | Drilling, Milling & Grinding Tools | Concave Mill Shoe
1. Application The concave mill shoe is a well repair tool used for grinding small downhole fish and other unstable fish inside the casing. 2. Structure It consists of a mill shoe body with a concave angle of 5°~30° on the bottom surface, and YD alloy or other wear-resistant materials deposited (...Read more -
Tubular String Fishing Tool — Box Tap
A box tap is a specialized tool designed for thread-milling fishing operations on the outer wall of tubular fish. 01 Structure Long cylindrical integral structure, composed of a sub and a body (which has fishing threads on its inner conical surface). The box tap is made of high-strength alloy st...Read more -
Drill Bit Types
1. Tricone Drill Bits: Rolling cutter bits (or rotary cone bits) have their cutting elements arranged on cones that rotate around their axes as the bit body spins. The number of cones on a bit can be 1, 2, 3, 4, 5, or 6. However, the most common rotary cone bits are tri-cone bits. Approximately 9...Read more
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