Drilling Manual

Well Blowout

Drilling Manual — Thu, 20 Mar 2025 22:10:09 +0000

Well blowout is an uncontrolled release of flowing fluids (e.g., gas, oil, water, and mud) from a well once pressure control systems such as BOP Stack are completely lost. This uncontrolled flow will end up with a well kick that increases in severity and may result in a “blowout”. The well control can only be recovered ...

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Jar Intensifier

Drilling Manual — Wed, 27 Nov 2024 22:35:39 +0000

The Jar Intensifier is perhaps one of the most outstanding devices designed to help fishermen successfully complete difficult fishing jobs in the oil and gas field. The tool is designed to become a fishing string component and work in conjunction with a hydraulic jar to ensure that the jarring blows are concentrated at the stuck ...

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Landing Nipple In Well Completion

Drilling Manual — Tue, 24 Sep 2024 18:27:45 +0000

A landing nipple is a tubing sub with a box, pin-threaded connection, and a precisely machined and configured internal bore. This internal bore, designed to accept a suitably sized mandrel with a matching external profile, functions as a guide for the mandrel as it is run down the inside of the tubing string using a ...

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Well Control On Rigs: 15 – Checks & Tests

Drilling Manual — Thu, 04 Apr 2024 11:20:28 +0000

Check(s): Comments: BOP Control Unit pressures & leaks: Check pressures of accumulator (3000 PSI), manifold (1500 PSI) and annular (between 700 and 1500PSI subject to ‘requirements’). Check air pressure to air pumps (125 PSI). Look and listen for any leaks of air or oil. Remove the two inspection caps from the reservoir and look along ...

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Snubbing Units In Oil & Gas Field

Drilling Manual — Tue, 02 Apr 2024 12:29:30 +0000

The impression still exists that snubbing or hydraulic workover units are exclusively used on blowouts or otherwise uncontrollable wells, which is false. The running of tubulars under pressure has indeed made it possible to bring many wells under control at a considerable saving to the industry, but the ability to perform many routine workovers- and ...

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Casing Running Procedures Good Practice

Drilling Manual — Tue, 19 Mar 2024 22:33:57 +0000

The casing pipe is mandatory in drilling operations as it has a lot of casing functions to prevent cave-in of unconsolidated formations, isolate problem zones, and many more. As mentioned before in our casing design guide, the selection of casing depends on many factors. Here in this article, we shall learn everything about the best ...

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Drill String Design Calculation Steps

Drilling Manual — Thu, 14 Mar 2024 23:35:26 +0000

Drill string design Calculations are made to help you select items from a list of ready-made Drill string components, not deciding what an individual component will look like. The objectives of our design efforts should be to: This Article covers simple drill string design steps for vertical and directional wells. Loads applied by tension, torsion, combined ...

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BHA Design For Oil & Gas Wells

Drilling Manual — Thu, 14 Mar 2024 23:25:03 +0000

The first step in drill string design is designing a Bottom Hole Assembly (BHA). The BHA comprises various components that work together to enable drilling engineers to achieve their drilling targets. Designing a BHA involves several critical steps that drilling engineers must consider to ensure that the drilling operation is safe, efficient, and successful. In ...

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Slip Crushing Formula & Calculations For Drill Pipe

Drilling Manual — Wed, 13 Mar 2024 21:45:46 +0000

Drilling slips exert hoop compression on the Drill Pipe which can deform the pipe in unfavorable conditions. This article will teach the drill pipe slip crushing formula and calculations. Slip Crushing Constant A unit tensile stress St from hanging weight will result in a hoop stress Sh that is a function of many factors such as slip length, ...

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Drill Pipe Burst Pressure Calculation & Rating

Drilling Manual — Wed, 13 Mar 2024 19:27:22 +0000

In general, we can define the burst pressure in a drill pipe as the differential pressure acting across the drill pipe wall due to an internal pressure greater than the external pressure. In this article, we shall discuss the drill pipe burst pressure formula and calculations used in drill string design. How To Consider Burst ...

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