Reservoir Pressure While Logging
Fast, accurate pressure and mobility
Perform reliable and efficient pressure measurement―in less than a minute.
PressureXpress service quickly generates a reservoir pressure survey for connectivity analysis, the pressure gradient for fluid density and fluid contact information, and mobility and permeability data to aid in sampling-point selection.
The slim OD and profile of PressureXpress pressure while logging service greatly reduce the risk of sticking. The eccentered tool shape, combined with a slight overbalance in setting force by the backup anchoring pistons, ensures an integral 1/2-in standoff from the formation during pretesting.
The smooth exterior profile also minimizes mudcake scraping during conveyance of PressureXpress service. There are no external tool angles over 20°.
Compatible with most openhole services, including the Platform Express integrated wireline logging tool and its foundational measurements for formation evaluation, PressureXpress reservoir pressure while logging service specifically conducts pressure and mobility testing. On the first logging run, a reservoir pressure survey can be quickly generated for connectivity analysis, along with the pressure gradient for fluid density and fluid contact information and fluid mobility determination to aid in sampling-point selection.
These data are the basis for accurate pressure profiles and mobility measurements that you can integrate with petrophysical, seismic, and conventional log data for a more complete reservoir picture. Our expert, multidisciplinary geoscientists and engineers work with you as needed to achieve an integrated interpretation, employing advanced workflows and software such as the Techlog wellbore software platform to maximize the value of your logging data and achieve the fullest possible understanding.
Success hinges on close and continuous collaboration between all parties involved. Chevron’s Jack/St. Malo prospect is no exception.
Three advanced formation evaluation passes and a total 4,750 ft tractored in a single 30-hour descent.
Expert evaluation of pressure-while-logging data and gradient analysis results helps WOC optimize well placement, Libya.
One-run combo collects high-quality data in 40% less time to clearly distinguish new reservoir from depleted zones in the Western Desert, Egypt.
From the very start, Schlumberger has been involved in developing deepwater projects, contributing its marine seismic, data and consulting, reservoir evaluation and wireline, drilling and measurement, testing and other uniquely related technologies and services for the exploration, completion and production phases.
Currently the Qatargas 3&4 block is in its late development phase where over 75% of its wells have been drilled, evaluated and completed. The formation evaluation is generally carried out using data acquired by wireline conveyed tools and a standard log acquisition program consist of two runs configured to record mainly resistivity, porosity, sonic and formation pressure data.