Industry News
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100 million ton oil field group is fully put into operation for Bohai Sea
CCTV news: July 12,2023, China National Offshore Oil Corporation announced the news that the Bohai Sea 100 million ton oil field group - Kenli 6-1 oil field group to achieve full production, marking that China has successfully mastered ...Read more -
What does downhole operation include（2）?
05 Downhole salvage 1. Well fall type According to the name and nature of falling objects, the types of falling objects in wells mainly include: pipe falling objects, pole fallin...Read more -
The working principle and operation method of window overshot
The windowed overshot is a tool used to fish short tubular, columnar or stepped objects, such as tubing pup joints with couplings, screen pipes, logging instrument weighting rods, etc. It can also be ...Read more -
Factors Affecting Drilling Quality and Speed
Influence of Drilling Tools on Drilling Quality and Speed Ordinary drilling usually adopts conventional rotary table drilling. However, the drilling speed of this traditional drilling method is very l...Read more -
How to identify drill pipe joints?
The drill pipe joint is a component of the drill pipe, divided into male joints and female joints, connected at both ends of the drill pipe body. The connector is provided with a thread screw thread (...Read more -
What are the main causes of blowout accidents in drilling operations?
Blowout is a phenomenon in which the pressure of formation fluid (oil, natural gas, water, etc.) is greater than the pressure in the well during the drilling process, and a large amount of it pours into the well-bore and ejects uncontro...Read more -
One of the highest drilling difficulty in the world
At 10:30 on July 20, CNPC Shendi Chuanke 1 well, the most difficult drilling well in the world, started drilling in the Sichuan Basin. Prior to that, on May 30, CNPC Deepland Tako 1 well was drilled in the Tarim Basin. One north and one...Read more -
What does downhole operation include(1)?
1.What is downhole operation? Downhole operation is a technical means to ensure the normal production of oil and water wells in the process of oilfield exploration and development. Oil and natural gas buri...Read more -
Top ten well completion tools
The types of downhole tools commonly used in offshore oil field completion and production strings include: Packer, SSSV, Sliding Sleev , (Nipple), Side Pocket Mandrel, Seating Nipple, Flow Coupling, Blast joint, Test Valve, Drain Valve, Mandrel, Plug, etc. 1.Packers The packer is one of th...Read more -
Past and present for Cone bit
Since the advent of the first cone bit in 1909, the cone bit has been the most widely used in the world. Tricone bit is the most common drill bit used in rotary drilling operations. This type of drill has different tooth designs and bearing junction types, so it can be adapted to various formatio...Read more -
How should the drill pipe be maintained after use?
After the drilling operation is completed, the drill tools are neatly placed on the drill pipe rack according to different specifications, wall thickness, water hole size, steel grade and classification grade, need to rinse ,blow dry the inner and outer surfaces of the drill tool, joint threads, ...Read more -
Surface treatment of downhole motor- the successful solution to the corrosion in saturated brine
1. Successfully solved the corrosion problem in saturated brine. Processing method comparison: a. Chromium plating is the most widely used method at present. 90% of domestic petroleum customers use this method, which has a short service life and low price. The biggest problem of electroplating is...Read more
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