Results of field testing the cement evaluation tool

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6825813

Leigh, C A; Finlayson, C G; Van der Kolk, C

The Cement Evaluation Tool (CET) developed by Schlumberger employs a pulse-echo technique using eight sonic transducers to investigate the casing cement bond. The tool has been widely field tested in a clastic environment in Brunei (N.W. Borneo), across both oil and gas bearing reservoirs. Numerous comparisons of the CET with conventional CBL/VDL logs have been made. Across oil and water bearing intervals the CET is shown to compare favourably with the CBL/VDL and yields significant additional information on channeling, cement distribution, and the success of casing centralization. In addition, the accuracy of the acoustic calipers have proved sufficient to be used in assisting drilling and completion operations. The response of the tool to a microannulus has also been demonstrated by multiple runs under varying wellbore pressures.

• Research Organization: Brunei Shell Petroleum Co. Berhad, Brunei
• OSTI ID: 6825813
• Report Number(s): CONF-8406110-
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
BUILDING MATERIALS
CEMENTING
CEMENTS
COMPUTER CODES
COMPUTERIZED SIMULATION
EQUIPMENT
EXPLORATORY WELLS
FIELD TESTS
FLUID FLOW
FUNCTIONS
GAS FLOW
GEOLOGIC DEPOSITS
MATERIALS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS WELLS
OIL WELLS
PERFORMANCE
PETROLEUM DEPOSITS
RESOURCES
RESPONSE FUNCTIONS
SIMULATION
SONIC LOGGING
TESTING
WELL CASINGS
WELL COMPLETION
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS