MWD Tool Basic Components For Custom Parts For The Directional
Drilling Industry
As drilling has become more complex, with horizontal and
directional drills increasing in numbers, well logging has also had
to adapt and improve. Measurement-While-Drilling (or MWD) is a type
of well logging that incorporates the measurement tools into the
drillstring and provides real-time information to help with
steering the drill.
Once a well angle exceeds 60 degrees, the logging tools can no
longer be pushed through the well to retrieve information, making
conventional logging tools ineffective. Originally designed in the
1980s to overcome well logging challenges of wells being drilled at
extreme angles, MWD is a type of Logging-While-Drilling (LWD) where
tools are encompassed in a single module in the steering tool of
the drillstring, at the end of the drilling apparatus (or the
bottom hole assembly).
Providing wellbore position, drillbit information and directional
data, as well as real-time drilling information, MWD uses
gyroscopes, magnetometers and accelerometers to determine borehole
inclination and azimuth during the actual drilling. The data is
then transmitted to the surface through pulses through the mud
column (mud pulse) and electromagnetic telemetry. Decoded at the
surface, the data can also be transmitted to an offsite location
immediately.
With such precise wells being drilled, MWD aids drilling engineers
with real-time information so that they can make important
decisions while drilling. Geosteering is a relatively new concept
of positioning wells according to the geological features in the
reservoir obtained through MWD.
Please check below new photo
Common Alloy Grades, Ghysical Mechanical Properties And Recommended
Application |
| Grade | WC% | Co/Ni % | Physical and mechanical properties | Grain size (μm) | Recommended application |
| Density (g/cm3) | TRS (N/mm2) | Hardness (HRA) |
| ZG01 | 100 | 0 | 15.3-15.5 | 1200 | 95.5 | 0.3 | Ultra-high hardness, high wear resistance, anti-corrosion, with
certain anti-destructive ability |
| ZG04X | 96 | 4 | 15.0-15.2 | 1600 | 92.8 | 0.8-1.0 | Suitable for drawing die, non-ferrous metal wire drawing and
wear-resistant parts |
| ZG06 | 94 | 6 | 14.8-15.1 | 2500 | 90.0 | 1.2 | Good abrasion resistance, good compression resistance, suitable for
wear-resistant parts that resist abrasion and high pressure. |
| ZG06X | 94 | 6 | 14.8-15.1 | 2400 | 91.5 | 1.0 | Superio wear resistance,good comprehensive properties,suitable for
making non-standard structure components with higher wear
resistance. |
| ZG06A | 94 | 6 | 14.8-15.1 | 2150 | 92.5 | 0.6-0.8 |
| ZG08 | 92 | 8 | 14.6-14.9 | 2700 | 89.0 | 1.2-1.6 | Good general performance, used for general wear parts, molds,
general tools, etc. |
| ZG10.2 | 90 | 10 | 14.3-14.6 | 3800 | 91.7 | 0.7 | Good general performance, suitable for casing and oil nozzle
products |
| ZG11 | 89 | 11 | 14.3-14.7 | 2800 | 88.5 | 1.2-1.6 | Anti-wear, anti-erosion, good comprehensive mechanical strength,
suitable for wear-resistant parts in the petroleum, chemical and
mechanical industries. |
| ZG12X | 88 | 12 | 14.2-14.5 | 3000 | 89.5 | 1.0-1.2 | Anti-erosion, good comprehensive mechanical strength, suitable for
impact-resistant wear-resistant parts, molds, and roller rings. |
| ZG15 | 85 | 15 | 13.8-14.2 | 3000 | 86.5 | 1.2-1.6 |
| ZG15X | 85 | 15 | 13.8-14.2 | 4500 | 89.0 | 0.7 | Excellent wear resistance and toughness,it is suitable for making
integral stamping dies, anti-vibration toolholders, etc. |
| ZG20 | 80 | 20 | 13.4-13.8 | 3100 | 85.0 | 1.0 | Excellent wear resistance and toughness |
| ZN06 | 94 | 6 | 14.5-14.9 | 2000 | 90.0 | 1.2 | Non-magnetic alloy, suitable for sealing ring, non-magnetic
wear-resistant parts and corrosion-resistant parts. |
| ZN09 | 91 | 9 | 14.3-14.6 | 2300 | 89.0 | 1.2-1.6 |
| ZN11 | 89 | 11 | 14.0-14.3 | 2600 | 88.0 | 1.2 |
