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Segmented Bond Tool(SBT)

Segmented Bond Tool(SBT)

Segmented Bond Tool(SBT) SITAN BSM70-200D 8-sector Segmented Bond Tool is the storage & direct-reading integrated design mainly used to detect the cementing quality of cased wells. Compared with conventional sonic density logging tools, SITAN BSM70-200D 8-sector SBT describes the cement bond...

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Product Details

Segmented Bond Tool(SBT)


SITAN BSM70-200D 8-sector Segmented Bond Tool is the storage & direct-reading integrated design mainly used to detect the cementing quality of cased wells. Compared with conventional sonic density logging tools, SITAN BSM70-200D 8-sector SBT describes the cement bond more precise and accurate. SITAN BSM70-200D 8-sector Segmented Bond Tool divides the circle into 8 sectors, each sector accounts for 45°, improves the circumferential resolution, and can visually display the cementation of the first interface (casing and cement ring) and identify the location, size and distribution of the trench and holes in the first interface. SITAN RBT can also accurately evaluate the cement return height and the second interface cement bond conditions.

 

Specification

Model

BSM70-200D

OD

70mm(2.75in)

Length

5118mm

Well OD

4.5in-9in

Max working temperature

177℃

Max pressure

100Mpa(14500psi)

Power supply

(130±10)   V /18VDC, (70±10) mA

CBL Amplitude

±5%

CBL propagation time

±2µsec

Max logging speed

550m/h

Gamma measuring range

0cps~2000cps

GR Sensitivity

3CPS/API (Min.)


Case study

SITAN BSM70-200D 8-sector Segmented Bond Tool worked in the 7inches simulation well of Yan Chang well logging company. Make a triangle up bad cementing interval respectively 2m from the bottom on the casing at well depth 60-70m to simulate transition from bad cementing to strong bonding process casing.

The follow picture is for actual effect, it can be seen that in 62-68m, CBL curve has obvious triangle changing process. On the sector profile, we can also see that the change of the casing from weak bonding to the strong bonding process.

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