Scanner Family Rock and Fluid Characterization Services
The more you understand your reservoir, the better positioned you are to manage its lifetime performance. A series of unique advances in downhole measurement means that many of the conventional limitations in the ability to measure - and understand - the subsurface can at last be overcome, using the Scanner Family rock and fluid characterization services. The Scanner Family allows you to maximize certainty in the derived properties that are used in your reservoir model.
Benefits
- See tens of feet into the formation, at multiple depths simultaneously
- Locate and identify trapped fluids
- Quantify the impact of the drilling process
- Understand rock stresses and long-term formation integrity
Sonic Scanner Acoustic Scanning Platform
Adding radius to borehole acoustics
In addition to axial and azimuthal measurements, the Sonic Scanner acoustic scanning platform makes a radial measurement to probe the formation for near-wellbore and far-field slowness. Typical depths of investigation equal 2 to 3 times the borehole diameter.
The Sonic Scanner platform provides advanced types of acoustic measurements, including borehole-compensated monopole with long and short spacings, cross-dipole, and cement bond quality. These measurements, converted into useful information about the drilling environment and the reservoir, help you make decisions that reduce your overall drilling costs, improve recovery, and maximize productivity.
Achieving a better understanding of acoustic propagation
To give you a deeper understanding of acoustic behavior in and around the borehole, the Sonic Scanner tool enables accurate radial and axial measurements of the stress-dependent properties of the rocks near the wellbore. Its multiple depths of investigation, excellent waveform quality, and clear presentations reduce the complexity of sonic logging, without compromising the depth of information.
Understanding your reservoir
Get the most comprehensive understanding of your rock and improve your fracture planning, sand control, and perforating designs. See stress on a whole new level, with an extra dimension.
Benefits
- Enhanced hydrocarbon recovery
- Real-time decisions with real-time quality control
- Improved reserves estimates
- Decreased operating time and job costs by eliminating multiple logging runs
- Reduced uncertainty and operating risk
MR Scanner Expert Magnetic Resonance Service
Investigate the formation at multiple depths in a single pass
Formation evaluation simplicity
The MR Scanner expert magnetic resonance service is the next-generation nuclear magnetic resonance wireline logging tool. Making simultaneous multifrequency measurements, the tool investigates the formation at multiple depths in a single pass. Its unique measurement sequence gives you a clear profile of your reservoir fluids.
Deep measurements let you see beyond data-quality problems associated with rugose boreholes, mudcake, and fluids invasion. And the tool’s ecentered design keeps the measurement depths on track regardless of the hole size, deviation, shape, or temperature.
The MR Scanner tool’s advanced design and ready-to-apply computations bring simplicity to formation evaluation. You don’t have to be an NMR data processing and interpretation expert to take advantage of the wealth of information it delivers.
Multiple depths of investigation
Multiple antennas enable simultaneous measurements. Information from four depths of investigation—1.5 to 4 in—gives you a profile of saturation distribution and formation damage from a single pass.
An understanding of your well’s invasion profile lends insight to the reverse process of production. MR Scanner producibility information, plus the formation evaluation data, helps you govern overall project economics.
Understand your reservoir
Whatever the environment, MR Scanner data lets you visualize the fluid distribution. From a single pass with multiple depths of investigation, this service delivers a detailed formation evaluation of the near-wellbore region, fluid identification, and in situ hydrocarbon characterization.
Benefits
- Measurements taken beyond damaged zone
- Thin-bed analysis through improved vertical resolution
- Environmental effects identified by radial profiling
- Valid interpretations in the presence of borehole rugosity or thick mudcake
- Rig-time savings
Rt Scanner Triaxial Induction Service
Rt Scanner triaxial induction service calculates vertical and horizontal resistivity (Rv and Rh, respectively) from direct measurements while simultaneously solving for formation dip at any well deviation. Making measurements at multiple depths of investigation in three dimensions ensures that the derived resistivities are true 3D measurements. The enhanced hydrocarbon and water saturation estimates computed from these measurements result in a more accurate reservoir model and reserves estimates, especially for laminated, anisotropic, or faulted formations.
The compact, one-piece Rt Scanner tool has six triaxial arrays, each containing three colocated coils measuring at various depths into the formation. Rv and Rh are calculated at each of the six triaxial spacings. Three single-axis receivers are used to fully characterize the borehole signal to remove it from the triaxial measurements. In addition to the resistivity measurements, formation dip and azimuth are calculated for structural interpretation.
Along with advanced resistivity and structural information, the Rt Scanner tool delivers standard AIT array induction imager tool measurements for correlation with existing field logs. The tool’s innovative design provides this complete resistivity information with no additional hardware. The Rt Scanner tool is also fully combinable with Platform Express and most openhole services.
Isolation Scanner Cement Evaluation Service
Isolation Scanner cement evaluation service combines classic pulse-echo technology with a new ultrasonic technique—flexural wave imaging—to accurately evaluate any type of cement, from traditional slurries and heavy cements to the latest lightweight and foam cements. This innovative method provides real-time evaluation of cement jobs in a wider range of conditions than previously possible with conventional technologies.
The tool's combination of independent measurements differentiates low-density solids from liquids to distinguish lightweight, foam, and contaminated cements from liquids. Its azimuthal coverage provides an answer around the entire circumference of the casing, pinpointing any channels in the cement and confirming the effectiveness of a cement job for zonal isolation. Isolation Scanner service also identifies corrosion or drilling-induced wear through measurement of the inside diameter and thickness of the casing.
Flexural wave imaging
The addition of the flexural measurement produces an entirely new piece of information yielding potential insight for certain applications. With analysis in addition to the cement evaluation, flexural reflections from the third interface may also define the position of the casing within the borehole or outer casing. Previously unavailable cased hole–environment geometrical information can help assess casing and cementing techniques, choose cut points on casing retrieval jobs, and provide context for other evaluation services run through casing.
Applications
- Differentiate high-performance lightweight cements (foam, LiteCRETE and Ultra LiteCRETE slurry systems) from liquids
- Map annulus material as solid, liquid, or gas (SLG map)
- Confirm hydraulic isolation
- Identify channels and defects in annular isolating material
- Determine casing internal diameter and thickness
Flow Scanner
Diagnose your three-phase flow, downhole
Optimized for three-phase production logging, the Flow Scanner horizontal and deviated well production logging system makes unique, direct measurements by using sensors in contact with the phases. Regardless of phase mixing of recirculation, your complex flow regimes are quantified and profiled in real time to give you a better understanding of downhole phase dynamics.
Conventional production logging tools, developed for vertical or nearly vertical wells, cannot give effective answers when confronted with the complex flow environment of highly deviated wells. Flow Scanner service can. Innovative electrical probes distinguish water and hydrocarbon buildup and optical probes differentiate gas and liquid holdup to fully measure three phases.
The Flow Scanner tool measures phase velocity for calculating a multiphase velocity profile. By combining the velocity and holdup profiles, you can calculate multiphase flow rates in real time, maximizing well production.
Fully combinable with other cased hole logging tools, the system operates in temperatures and pressures up to 300 degF and 15,000 psi. The system can be run in hole sizes ranging from 2 7/8 in to more than 9 in on wireline, coiled tubing, or as an integral part of our MaxTRAC downhole well tractor system.
Case studies: Exact production profiles
In the Gulf of Suez, conventional production tools failed to see oil entries because of adverse effects of highly viscous oil and unstable slugging from a 37° well flowing about 2,000-bbl/d oil with a 97% water cut. Reworking the well depended on an accurate production profile showing the precise location of the oil and water entries. Flow Scanner logging produced a reliable inflow profile, free from the unfavorable effects encountered previously.
In another Middle East example, the Flow Scanner system identified water recirculation along the wellbore completion to 100 ft from surface. The operator conducted a workover to circulate out these remnant completion fluids, effectively unchoking the well and significantly increasing hydrocarbon production.
EM Pipe Scanner
Electromagnetic casing inspection
EM Pipe Scanner electromagnetic casing inspection tool combines a slim mandrel with 18 pad sensors to quantitatively scan the interior surface and thickness of production casing. The slim mandrel enables measuring casing corrosion and identifying grooves and splits without having to first pull the completion tubing, saving significant time and cost.
As it descends in the well, the EM Pipe Scanner tool conducts a high-speed reconnaissance run to flag places of interest for subsequent diagnostic scans as the tool ascends. The diagnostic images identify the exact severity and nature of the corrosion. The versatile tool is fluid insensitive, operating in liquid or gas environments, and can be deployed by wireline, tractor, or coiled tubing at up to 90° well deviation. Time-lapse deployment provides corrosion rate estimates, identifies casing corrosion behind tubing, and determines the inner tubular radius behind scale.