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Compensated Acoustic / Cbl

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2 ½” Product Line Compensated Acoustic / CBL The Borehole Compensated Acoustic instrument has been designed for acquiring highresolution, full-wave acoustic data. Two ceramic monopole transmitters emit the acoustic signal, which is recorded by two ceramic receivers. During one logging run, the formation travel time in the open-hole interval and the cement bond log in the cased-hole section can be recorded. The log requires a fluid-filled borehole but is independent of the mud type. Specifications Diameter: Length: Weight: 63.5 mm 3940 mm 56 kg (2.5”) Transmitter Type: (155.1”) Sensors: (123 lbs) Ceramic, monopole Ceramic Transducer Array Max. Temp: Max. Pressure: 175°C (350°F) Transmitter-Receiver Spacing: 140 MPa (20 000 psi) T1-R1 : 915 mm (3 ft) R1-R2: 610 mm (2 ft) Telemetry required: yes T2-R2: 915 mm (3 ft) Top Connector: yes Bottom Connector: yes Delta T Measure Point (from bottom): 1950 mm (76.7”) Measuring Parameters Measuring Range: DT: 100-800 μs/m (35-250 μs/ft) Traces up to 4000 μs Accuracy DT*: + 3 μs/m ( +1μs/ft) * centralized tool in a 100 mm (4”) diameter borehole Logging parameters Recommended Min. Hole Diameter: 100 mm Max.Hole Diameter: 400 mm Min. Casing ID: 100 mm (3.9”) (15.8”) (3.9”) Recommended Logging Speed: 6-15 m/min (1200- 3000 ft/hr) Displayed Standard Curves Open Hole DT in μs/m ot μs/ft Delta Time RuntimeT1R1 in μs Acoustic Travel Times RuntimeT1R2 in μs RuntimeT2R1 in μs RuntimeT2R1 in μs TTI Integrated Travel Time TraceT1R1 in mV TraceT1R2 in mV TraceT2R1 in mV TraceT2R2 in mV Trace information Cement Bond Log SRTN (μs) Single Receiver Travel near receiver AmpN Amplitude of first arrival from near receiver, measured at casing travel time Trace F (mV) Trace Information from far receiver BI Bond Index Combinability With all 2½” open hole instruments and 3⅜” open hole instruments SEMM logging – Lieu dit « Les Maufras » – 18360 Vesdun - FRANCE Tél : + 33 2 48 63 10 89 – Fax : + 33 2 48 63 05 90 – Mail : [email protected] – Web : http://www.semmlogging.com SIRET : 453 415 879 00015 – SAS au capital de 200 000 € – RCS BOURGES B 453 415 879