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Near Bit MWD System

Near Bit MWD System
Details:
Pressure while drilling tool -- Near Bit MWD System is an intelligent measurement system used in petroleum drilling systems to obtain true parameters at the bottom of the well. Near drilling head shooting measurement short section can detect natural gamma rays in different directions around the wellbore, and provide real-time parameters such as wellbore inclination, temperature, and drill bit speed at a distance of 0.5 meters from the drill bit. Combined with geological guidance software, gamma imaging can be formed to identify changes in formation lithology and control the drilling tool to pass through the optimal position of the oil and gas reservoir.
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Description
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Product Specification

 

Item

Model 4 3/4

Model 6 3/4

OD(mm)

Sending sub 130

Receiving sub 130

Sending sub 172

Receiving sub 172

Connecting length (mm)

Sending sub 575

Receiving sub 1003

Sending sub 1146

Receiving sub 1078

Temp. (℃)

150/175

Pressure (MPa)

125/140

Continuous working hours(h)

>200

Wireless data rate (bit/s)

128

Wireless communication distance (m)

14

Pulse generator RPM (r/min)

30~450

Item

Measure range

Measure Accuracy

Distance to Bit

Inclination

0-180°

±0.2°

≤0.5m

Tool face

0-180°

±1.0°

≤0.5m

Azimuth GR

0-512API

±5%

≤0.5m

 

Advantages and Features

 

1

 

Suitable for horizontal well geological guidance and formation evaluation, it can achieve precise entry into the window target, accurately identify the direction of changes in the geological structure of the reservoir encountered by the drill bit, improve the effective reservoir drilling encounter rate, reduce cycle downtime, and improve drilling efficiency. 

  • Hi-temp. directional probe：A group of high-precision sensor system ensures full-time high-precision acquisition of data, and the vibration damping design ensures the stability of the whole system
  • Hi-temp. azimuthal GR probe：The GR detection can be divided into 16 sections, especially suitable for complex reservoir and thin layer
  • Near-bit attitude measurement：High data accuracy and stability; dynamic geo-steering with short clearance
  • Double wireless design：Hi-speed data transmitting with Min interference, and can be connected with any MWD brand

 

 

As an innovative leader in the field of intelligent drilling tools , such as Pressure while drilling tool, HELI has established an industry-leading integrated research and development platform for electromechanical and hydraulic systems, achieving fully independent research and development of high-speed data transmission systems and high-temperature resistant electronic components. Our engineering team has provided on-site technical support for over 400 complex structured wells, forming a unique working condition database and solution library... Read More

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FAQ

 

Q: In which aspect is the innovation of this Near Bit MWD System reflected?

A: Dual mode measurement scheme of "gamma+inertia"

Q: What are the customers?

A: Please find them on HOME page

Q: What standards does the product meet?

A: API, ISO and so on

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