Diagnostic Services

Aside from in-house procedures for candidate selection and programming, this service involves the application of diagnostic surveys designed to identify specific sources or causes of downhole well problems. Services run in this set includeProduction logs, Noise logs, Multi-finger Imaging logs, and Compensated Neutron logs.

Production Logs involve the Simultaneous real-time or memory record of downhole production using up to 10 independent sensors including Gamma ray, Collar locator, Flow meter, Fluid density, X-Y caliper, Temperature, In-line flow meter, Quartz Pressure. Noise Logs Detect downhole audio frequency and amplitude variations due to fluid movements.

The Dual or compensated Neutron Log is used to Identify Gas-Oil contacts, monitor gas-cap movements and as an alternative correlation tool. (The memory version of this tool is deployed on slickline).

The Multi-Finger Imager Log provides high resolution images of the internal corrosion condition of tubing and casing by recording simultaneous independent measurements from up to 40 mechanical feelers or calipers. (This tool can be deployed on slickline or electric line).

Data recorded with memory tools is stored in a downloadable memory tool and subsequent "depth-to-time-to-data" merges result in a depth matched log, which is of comparable quality to real-time generated logs.

News & Articles

Case Histories

Oildata was the first company to successfully record a horizontal well Production Log on an ExxonMobil Well in West Africa

– Ubit 71, Ubit 75, 1995

The first service company to log a memory log on a short Radius horizontal well in Africa.

– Ashland, 1997

Oildata was the first company to design and install an open-close-open straddle packer system to isolate a high pressure gas zone while simultaneously permitting the production of oil from a deeper horizon.

– ChevronTexaco, 1998, 1999

Oildata was the first company to deploy a wireline tractor in a horizontal well in Nigeria to acquire reservoir data without coiled tubing or pipe conveyed logging equipment.

– Shell, 1999

Oildata successfully re-established oil production from the abandoned Salt pond Marginal field, offshore Ghana.

– SOPC/GNPC, 2002

Oildata has performed 100% of ChevronTexaco's non-rig well interventions and data acquisition requirements in Nigeria since 1996

– ChevronTexaco, 1996

Services Overview