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21/Nov
2025
Logging While Drilling And Measurement While Drilling
Oil and gas drilling is a complex and costly operation that requires real-time downhole information to ensure safety and efficiency. In this process, LWD (Logging While Drilling...
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21/Nov
2025
Measurement While Drilling (MWD)
Measurement while drilling (MWD) Overview Telemetry methods had difficulty in coping with the large volumes of downhole data, so the definition of MWD was broadened to include d...
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21/Nov
2025
Gyro Drift Values
Nature and Source of Drift The Drift is the rotation of the outer gimbal because of the Earth's rotation sensed and imperfections of the system. Drift is expressed in (degrees p...
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21/Nov
2025
Gyro Survey Tool Types In Oil & Gas Wells
Conventional Gyro The conventional gyro or free gyro has been around since the 1930s. It obtains the azimuth of the wellbore from a spinning gyro. It only determines the directi...
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15/Aug
2025
Technical Discussion On Wellbore Cleaning -- Part Three
What are the key differences between a cased and open well cleanout? Schlumberger: One key difference between the two is the level of potential risk. Open hole cleanouts are ris...
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15/Aug
2025
Technical Discussion On Wellbore Cleaning -- Part Two
How do you know when it is time for a wellbore cleanout in a mature well? Should it be a regular & ongoing process or it is not necessary? Schlumberger: When the wells produ...
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15/Aug
2025
Technical Discussion On Wellbore Cleaning -- Part One
Why is an effective wellbore cleanout program essential when looking at the production and run life of a well? Schlumberger: Movement of sand and accumulation of debris can have...
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15/Aug
2025
What Is Wellbore Cleanout?
In the oil and gas industry, wellbore integrity is paramount for maximizing production efficiency and ensuring operational safety. A critical component of wellbore integrity is ...
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31/Jul
2025
Key Advancements in Plug Cementing Technology
With growing complexity in drilling operations, deepwater exploration, and stricter environmental regulations, recent advancements in plug cementing technology have been pivotal...
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31/Jul
2025
Applications Of Plug Cementing
Wellbore Isolation: During drilling, it's often necessary to isolate certain zones within the wellbore to prevent fluid migration. A cement plug can be set to separate different...
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18/Nov
2024
Parts Of Christmas Tree in Oil And Gas
1. Tubing Cross and Tree The tubing four-way and three-way of the Christmas tree are connected with the main valve, wax removal valve and wing valve. The common four-way and thr...
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18/Nov
2024
Casing Head Overview
Christmas trees are wellhead devices used to extract oil from blowout wells and mechanical production wells. It is the main equipment for controlling and regulating oil and gas ...