Often MWD operators and tool engineers need to simulate WITS data for depth. Depth simulation may be needed for training or shop testing where a depth tracking system (DTS) is not available, or for troubleshooting communication with a present DTS or EDR.
Mezintel Gamma software offers in-app simulation for both MWD and depth data, and this feature may suffice for training and testing purposes. However, how about in certain testing or troubleshooting scenarios when there’s need to simulate data as well as its transmission via a communications port — as would be with a depth tracking system or EDR?
In such cases, a dedicated WITS simulator application is very useful.
By: Anthony Lukindo, Mezintel Inc. Calgary AB, Canada — September 24, 2007
QSM PC Example (.LLB)
Download as Document
The Queued State Machine -Producer Consumer Architecture; abbreviated in this article as QSM –PC is one essential architecture that significantly facilitates the programming of mid-sized to advanced LabVIEW –based projects that constitute 100 or more VIs. In light of the intermediate to advanced nature of the objects that make up the QSM –PC architecture, taking full advantage of this design template requires detailed knowledge of the ‘why’ and ‘how’ of the various design aspects that characterizes this template. This article defines, illustrates, and describes at length the various elements of the QSM –PC architecture.
While drilling, you may not want to log bad values for a particular sample (e.g. points that are too high or too low). In Mezintel Gamma (version 22.17.127 ), you can filter out such unwanted values from being logged while drilling.
Once the reviewer approves test results in BreakTest, signed test reports of them are automatically generated as PDF files, and archived. These PDF reports are snapshots of the e-form as it was when it was signed, and are ready to be emailed to the client.
For field density tests however, there may be times when you are required to provide your client with only a select set of the test rows on the report. You can do this by selecting the rows you want, and printing only those.
In BreakTest, concrete and soils test results are recorded on a long running table list on their e-forms (the list is broken up to fit letter-size pages for reporting). This continuous list simplifies managing the test results.
However, the list can get quite long for field density tests, and there are times when you need to work on certain field density test rows, and skip others. For example, you may need to assign proctors to only a set of applicable rows. Or if you’re approving the test results, you may need to skip certain rows due to inaccurate information. More purposes for this capability follows later in this article.
Download as Document
Mezintel Depth Tracker streams out ASCII data every 4 seconds via a 9-pin RS-232 male serial port. This data is in WITS format.
WITS (Wellsite Information Transfer Specification) is a 20 year old worldwide oil and gas industry standard that specifies how to format text-based (ASCII) drilling data for transmission between two devices connected by serial ports (RS-232) or by an Ethernet link.
A signature of approval authorizes specified subsequent actions.
In the field of materials testing, by signing a test report the signatory is saying that it is okay to archive and send the test results to stakeholders. In addition to placing the signature on the form, digital signing should do more to make any subsequent authorized tasks as seamless as possible. This means taking advantage of the computer to boost productivity by:
- Eliminating manual handling of the test reports
- Streamlining the process of distributing approved reports to customers
In drilling, there are two are two main ways to interpret the rate of penetration (ROP): Instantaneous and Average. Here are good definitions of the two:
Instantaneous ROP is measured over a finite time or distance, while drilling is still in progress. It gives a snapshot perspective of how a particular formation is being drilled or how the drilling system is functioning under specific operational conditions.
Average ROP is measured over the total interval drilled by a respective BHA from trip-in-hole (TIH) to pull-out-of-hole (POOH).
— G. Mensa-Wilmot and Y. Harjadi
A Smoother Plot
Average ROP is important because it’s a key factor to consider when discussing drilling efficiency, plus it produces a cleaner plot than instantaneous ROP.
Averaging points produces a cleaner plot.
Will you be at the Global Petroleum Show?
Join Mezintel at one of the world’s largest oil & gas shows! Come and chat with us at Booth 5209 in the lower level of the Big Four.
We will be showing all of our directional drilling products.
Want to attend for FREE?
A collection of marketing materials that identify key benefits of using BreakTest software for managing reports of construction materials testing.
A Need to Better Manage Daily Breaking of Concrete Samples Uncovers and Resolves Other Workflow & Productivity Issues
A customer using spreadsheet concrete reports with some automation via macros scripts looked to Mezintel’s BreakTest for new ways to:
- Print daily cylinder break schedule
- Automatically populate individual reports with strength data filled-in from daily break forms.
The chart section and survey table in Mezintel Gamma (version 22.00.085 ) now feature right-click menus.
Just right-click anywhere on the chart or on the surveys for a pop-up menu which contains the same items in the Choose Command drop-down menus for these sections.
Mezintel Gamma has a debug window which is commonly used for diagnosing serial port communication issues. One of our customers suggested that this feature would be even more useful if it can be accessed before actually loading a gamma job — instead of only from within a job.
Good idea! So we implemented his suggestion…
You can specify a gamma scale factor for each bit run in Mezintel Gamma (version 22.00.061 ) using a new built-in tool that helps you derive scale factors.
You can enter a scaling factor if you know it, otherwise, if you are unsure then you can calculate or find it from the Bit Runs window:
- In the Scale section under the bit run you want, double-click the value box for Gamma Scale Factor
→ The Get Scale Factor window opens
You may also click the … button to open up Get Scale Factor window.
Have you ever edited a log plot header to meet a requirement only to find yourself (or your colleagues) re-editing it several times to meet different requirements?
To make your work easier, you can now save multiple plot headers for the same job in Mezintel Gamma!
In Mezintel Gamma, samples points logged when the drill bit is ‘off-bottom’ are not shown on the plot. This is useful because it allows you to safely remove points from the plot by manually setting them to be off-bottom. This hides the points rather than delete them. The hidden points can be revealed again by reverting them back to be ‘on-bottom’.
Mezintel Gamma allows you to customize the timestamp format in you LAS export. You may need to do this in order to meet a requirement for another software or the LAS file format preferred by a client.
As of version 22.00.038 , when exporting an LAS file you can choose how date & time is displayed in the LAS.
Mezintel Gamma continuously sends out data to depth tracking EDR providers such as Pason and RigSense (NOV).
On a regular basis, about every 5 seconds, WITS data packets are sent out as several lines of plain text (ASCII) that are usually comprised of Toolface, Surveys, and Gamma data.
As of version 22.00.031 , you have more control over the structure of the data packet.
An example of a packet of lines of WITS data.
Notice that a packet of WITS data starts with the symbols && and ends with the symbol !!
As you know, sometimes MWD sample data may go missing for an extended interval of time while drilling continues. In such cases, there is a gap in the sample plot for the depth interval where data went missing.
Up until now Mezintel Gamma used to fill-in (or close) the gap with a straight line. However, some users wanted to control whether or not to show such gaps, so we have provided you with a new option to do just that.
Slow Performance Due to Accumulation of Jobs (more than 5 jobs)
Depending on your computer’s specs, Mezintel Gamma can start to run slow if you have accumulated about 5 or more jobs in addition to the default job templates. Some processes may even fail to complete when you have too many jobs. For example:
- Adding a new job may fail to complete
- Saving tie-in for the Survey Table may return an error
- Adding a new bit run may fail to complete
Some geologists require well logs to be produced as one seamless image file, usually as TIFF.
Up until now, Mezintel Gamma exported logs only as PDFs with pages that print seamlessly from log printers. We referred users who need TIFF well logs to 3rd-party software; but this feature is now available from Mezintel Gamma software!
New Sharp Header with editable vertical text.
Mezintel Gamma has been improved to generate completely vector-based PDF well logs, with these benefits*:
One of our customers wanted larger indicators on the Mezintel Depth Tracker so that MWD operators can see depth status from 15 feet away.
So, we added an alternative view that enlarges the block height, bit depth, ROP, hook load, hole depth, and slips status.
Simply tap on the Samples button to use this enlarged view.
In order to successfully run a Mezintel program, you must run it as administrator. Mezintel software that is not running as administrator will encounter errors as some point of being used.
If the UAC dialog does not pop up when you try to run a Mezintel program, then it is not set to run as administrator.
When you try to run a Mezintel program as administrator, the User Account Control (UAC) dialog will pop-up by default.
We launched our new website a week ago on October 1st!
While it looks great, it also tells you more about our company and products, and comes with an online support system for our customers. In order to improve our customer service, we introduced the following three channels for delivering support online: