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Bowen Casing Spear Calculator 1.1.23

12.7 MB / 0+ Downloads / Rating 5.0 - 1 reviews


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Bowen Casing Spear Calculator, developed and published by National Oilwell Varco, has released its latest version, 1.1.23, on 2022-12-09. This app falls under the Business category on the Google Play Store and has achieved over 10 installs. It currently holds an overall rating of 5.0, based on 1 reviews.

Bowen Casing Spear Calculator APK available on this page is compatible with all Android devices that meet the required specifications (Android 4.4+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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App Screenshot

App Screenshot

App Details

Package name: com.nov.casingspearsystemrating

Updated: 2 years ago

Developer Name: National Oilwell Varco

Category: Business

New features: Show more

App Permissions: Show more

Installation Instructions

This article outlines two straightforward methods for installing Bowen Casing Spear Calculator on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

Previous Versions

Bowen Casing Spear Calculator 1.1.23
2022-12-09 / 12.7 MB / Android 4.4+

About this app

NOV Bowen Casing Spear System Calculator helps to determine the overall load rating and mode of failure for the spear, mandrel, grapple, and casing in each application.

The strengths in the instruction manual are based on the Mandrel tensile strength only and does not consider the entire system together.

We are now able to model the entire system including Mandrel, Grapple, and Casing together. Our calculations were developed based on feedback from the field, various scale lab testing up to failure, and FEA models.

Important assumptions:
- We consider the catch range for the Grapple as well as API tolerances per API Specification 5CT
- We always take the worst-case scenario as the maximum pull value (Grapple range or max API tolerance) since it results in lowest contact between Grapple and Mandrel Helix
- Ratings are only valid if fish is within catching range of the Grapple.
- Casing ID is calculated based on OD and Weight if those are manual inputs
- For lighter casing weights, the casing contributes more significantly to reducing system ratings than it does for heavier weight casing which can asymptotically approach the publish Mandrel tensile strength in many cases

Calculated values are theoretical yield strengths and are considered accurate to within +/-20%. They assume the worst case scenario based on API tolerance. All strengths assume straight and steady pulling of a fully engaged round fish. Any irregularities in the fish ID/OD, damage to the grapple or mandrel, or jarring can reduce the strength substantially. Ratings are based on Grapple range only. These values are presented without any safety factor. Please contact NOV Engineering if there are any questions.

New features

The NOV Bowen Casing Spear System Calculator helps to determine the overall load rating and mode of failure for the spear, mandrel, grapple, and casing in each application.

App Permissions

Allows an application to read from external storage.
Allows applications to open network sockets.
Allows an application to write to external storage.
Allows applications to access information about Wi-Fi networks.
Allows applications to access information about networks.
Allows an application to request installing packages.