Cup tester
TIANHE-DT-CT
Cup tester is designed to be attached to the drill string and lowered into the casing beneath the wellhead to test the pressure of the blowout preventer stack and the wellhead. When the cup tester is lowered into the casing beneath the wellhead, pressure is applied to either a test pump or hoisting type cup after filling the hookup with water. This method is fast and accurate.
Quantity
Function: Precisely Creating a Temporary Pressure Barrier
The core mission of the Cup Tester, an essential piece of drilling tools, is to perform pressure tests efficiently and safely without relying on permanent isolation equipment. Its specific functions can be summarized into the following three points:
- Establishing a Temporary Seal: This Cup Tester can be run via wireline or pumping to a specified depth inside the well tubulars (tubing or casing). It then forms a robust temporary sealing point within the string through mechanical or hydraulic setting mechanisms. This operation is fundamental for various drilling tools and procedures.
- Creating a Test Cavity: Once successfully set, this Cup Tester creates an ideal isolated test section between itself and the wellhead equipment. This provides a stable environment for accurate pressure integrity verification, a critical step supported by reliable drilling tools.
Application Operations:
The Cup Tester is utilized in various critical operations, proving its worth among other pressure control drilling tools:- Pre-job Verification for Well Testing and Fracturing Operations
- Function Testing of Well Control Equipment
- Segment Pressure Testing and Tubing Inspection
- Pressure Isolation during Maintenance Operations
Verifying Sealing Performance of drilling tools: The primary objective of using the Cup Tester is to precisely verify the pressure-bearing capacity and sealing integrity of all components—from the blowout preventer and Christmas tree to all valves, flange connections, and the tubular body itself. This process, enabled by specialized drilling tools, ensures the entire system meets stringent design and safety standards, ultimately demonstrating the vital value of the Cup Tester.
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