Tag Archives: drilling

Gel Strength and Operational Impact

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The gel strength is the shear stress of drilling mud that is measured at a low shear rate after the drilling mud has been static for a certain period of time. The gel strength is one of the most important drilling fluid properties because it demonstrates the ability of the drilling mud to suspend drill solid and weighting material when circulation is ceased.

gel-strenght

How can gel strength is measured?

Gel strength measurement is made on viscometer using the 3-rpm reading, which will be recorded after stirring the drilling fluid at 600 rpm to break gel. The first reading is noted after the mud is in a static condition for 10 seconds. The second reading and the third reading will be 10 minutes and 30 minutes, respectively. Continue reading →

Good Document – An Introduction to Oil & Gas Drilling and Well Operations

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One of my friends shares this slide, An Introduction to Oil & Gas Drilling and Well Operations. This slide is the educational material from the IOM3 Oil and Gas Division, UK (http://www.iom3.org/). This is show all the basic of drilling and well operation in very simple language term. Additionally, there are several images which help explain content in this document clearly. This is a very good document when you try to explain overall drilling and well operation to new team members who don’t have much oilfield experience. The subjects covered in this presentation are as follow;

•Why we drill wells
•The well life cycle
•UK Legislation
•Well construction:-
−Well design and construction
−Rig types
−Pipe handling and the drill string
−Drilling and drill bits
−Drilling fluid
−Cementing (including plugging and abandonment)
−Blowout preventer
−Directional drilling
•Well testing and evaluation
•Well completion
•Xmas tree
•Well intervention
•Well integrity

Some of contents are shown below;

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Hole Monitoring Procedures While Drilling or Milling Operation

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This is the example of hole monitoring procedure while drilling or milling and this will give you some ideas only. You need to adjust it to suit with your operation

Hole-Monitoring-Procedures-While-Drilling-or-Milling-Operation

  • Perform pre-job safety meeting with personnel involved in operation.

  • The Driller or the toolpusher on the break is responsible for monitoring a well condition and identifying when a well must be shut-in with safe and correct practices.

  • If the driller sees a hole problem, the drilling operation must be stopped and inform the following people: Toolpusher, Senior Toolpusher and Company Representative.

  • Shut In Procedure While Drilling or Milling for Well Control Situation must be posted in the driller cabin where the driller can see it easily at all time.
    • Note: shut in procedure depends on requirement on each company.

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Offshore Deepwater Drilling and Completion in 5 Minutes

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This is excellent oilfield footage about the overall process of offshore deepwater drilling and completion. It has about 5 minutes with good animation that will give you clearer picture of how the deepwater operation works from the beginning.

We also add VDO transcription for anybody who cannot catch all the content of the VDO. Continue reading →