Detailed Product Description

SJAT Cement Bond Combination Tool is mainly used for the check of cementation quality. The tool is composed of CCL (casing collar locator)/ telemetering cylinder, gamma tool and sonic cement bond tool. The combination tool makes use of its interior signal processing circuit and transmits logging signals (CCL signal, natural gamma signal and sonic signal of cement bond) acquired by the system to surface well logging system via single-core cable. The combination tool is characterized by its multiple logging parameters, strong self-compensation capability, accurate measurement and high success rate. It is one of the best instruments used for cementation quality inspection. Dozens of logging curves it acquires include 2.5 sound amplitude, 2.5 propagation time, 3.5 sound amplitude, 3.5 propagation time, variable density, bond index, damping, natural gamma, CCL, 2.5X1R1 sound amplitude, 2.5 X2R2 sound amplitude, 3.5 X1R2 sound amplitude, 3.5 X2R1 sound amplitude, 2.5 X1R1 propagation time, 2.5 X2R2 propagation time, 3.5 X1R2 propagation time, 3.5 X2R1 propagation time, and so on. Main Technical Specifications

1.Maximum working pressure70MPa

2.Maximum working temperature150

3.Working voltage (at the cable gland)110V DC

4.Working current:

   1CCL/telemeter cylinder/ Natural gamma tool43mA

   2Sonic cement bond tool42mA

5.Gamma background counts≥160cps

6.Gamma fluctuation error≤7%

7.ODΦ70mm

8.Length

  1) Upper Centralizer790mm

  2) CCL/telemeter cylinder/ Natural gamma tool1470mm

  3) Sonic cement bond tool2800mm

  4) Lower centralizer790mm

9.Zero Length (from the bottom of the tool)

1 CCL/telemeter cylinder/ Natural gamma tool

a) CCL1200mm

b) Natural gamma tool300mm

2 Sonic cement bond tool

    Amplitude 1 (X1---R1)1600mm

    Amplitude 2 (X1---R2)1450mm

    Amplitude 3 (X2---R1)690mm

    Amplitude 4 (X2---R2)530mm

    Variable density or XY recording1220mm

10. Weight

1) Upper centralizer6.8kg

2) CCL/telemeter cylinder/ Natural gamma tool25kg

3) Sonic cement bond tool39kg

4) Lower centralizer6.8kg.