Bowen Casing Spear Calculator 12+
National Oilwell Varco, Inc.
Designed for iPad
-
- Free
Screenshots
Description
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.
What’s New
Version 1.1
The authentication in this version is new. The users will authenticate using Okta.
App Privacy
The developer, National Oilwell Varco, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- National Oilwell Varco, Inc
- Size
- 43.6 MB
- Category
- Business
- Compatibility
-
- iPhone
- Requires iOS 9.3 or later.
- iPad
- Requires iPadOS 9.3 or later.
- iPod touch
- Requires iOS 9.3 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Languages
- Age Rating
- 12+ Infrequent/Mild Sexual Content and Nudity Infrequent/Mild Simulated Gambling Infrequent/Mild Alcohol, Tobacco, or Drug Use or References Infrequent/Mild Mature/Suggestive Themes Infrequent/Mild Profanity or Crude Humor Infrequent/Mild Medical/Treatment Information Infrequent/Mild Cartoon or Fantasy Violence Infrequent/Mild Realistic Violence Infrequent/Mild Horror/Fear Themes
- Copyright
- © 2022 National Oilwell Varco, Inc
- Price
- Free