This is a retrievable Mud Pulse MWD, which can be dropped at the top of the well and retrieved from the bottom of the well. The instrument uses mature and reliable positive mud pulse technology and transmits stand pipe signals and other parameters by radio on the ground. When using, it does not need to lay out cables. The down-hole modules communicate wirelessly and the connection is easy and convenient, avoiding the hidden trouble arising from traditional contact pin structure during vibration.

Features and Benefits:

► Retrievable positive pulse MWD

► Ground wireless communication equipment, no need to lay out cables

► Connect each module by patent technology, do not need multi-pin plug

► Modularized design, easy for update and maintenance

► Adopt high precision sensor component

► Available for selecting gamma and resistivity module and depth measuring system

 Application

►  Oil & Gas drilling project

► Coal mine construction

► Tunnel and non-dig construction

► Slim well orientation/horizontal operation

 Main technical parameters

► Mud viscosity  ≤140S（hopper viscosity）

► Mud density  ≤2.5g/cm3

► Mud sediment  ＜1%

► Pulse signal strength:  0.5MPa~2.0MPa

► Mud flow rate:  10~55L/s

► battery working hours: 150h（ with gamma）/250h（without gamma）

 Parts for optional

► Depth system

  Well depth measurement: 0~9999.99m  1% （single）

► Nature gamma module

   Measurement range: 0~500API    ±3API(0~150API)

                                          ±10API(150~500API)

  Sensitivity: 2.2/1.6/API

  vertical resolution: 172/130mm

  Max. Data memory:  110/24 thousand sets