
Vol. 58 No. 5
May 2006
John Donnelly, JPT Editor
All indicators point to a sustained period of strong activity. Two things are key. First, the industry must add production capacity to meet increasing demand. Second, it must also replace production lost to the decline of the aging production base. With E&P spending increasing to record levels, with only a thin margin existing of excess supply over demand, and with oilfield services’ human and equipment resources stretched, we see no immediate drop in activity.
Last year set new records for Schlumberger activity as the price of oil allowed the E&P industry to increase spending. This year looks even stronger as more companies return to exploration-type work, and this is of particular significance to us because we have a wide range of technologies well suited to exploration, such as the Scanner family.
The Scanner family is a step change in technology and in the benefits it brings to how our clients populate reservoir models with their data.
Results have been great in a wide range of applications for each technology worldwide. Client acceptance has been very encouraging, and the number of case studies is growing.
Scanner applications are numerous throughout all the oil and gas upstream processes. The Rt Scanner runs with our Platform Express service in standard induction applications, with its major advantages apparent in thin beds, low-resistivity pay, and high-formation-dip environments. The Sonic Scanner is a service applicable to nearly every oilfield discipline: meeting geophysical challenges, detecting anisotropy accurately as low as 2%, delivering a clear understanding of formation-integrity issues likely to happen during production, and allowing completion engineers to make the best decisions on their completion and fracture designs. MR Scanner provides nuclear-magnetic-resonance measurements to help resolve petrophysical challenges in a variety of environments, including unknown or varying salinities, low-resistivity or low-contrast pay zones, and/or thin beds. This is made possible using a single pass with multiple depths of investigation. MR Scanner provides detailed formation evaluation of the near-wellbore region, fluid identification, and in-situ hydrocarbon characterization. In Middle East carbonate reservoirs, which are normally difficult to interpret using conventional resistivity techniques, the MR Scanner service has clearly distinguished hydrocarbon-bearing zones from the water zones by use of patented interpretation techniques.
To address the pressing production issues, we are launching two new cased-hole Scanner technologies: the Isolation Scanner and Flow Scanner. The next-generation zonal-isolation evaluation service is the Isolation Scanner for the latest lightweight and foam cements as well as traditional and heavyweight cements. It measures radially and deeper toward the formation, confirming zonal isolation, pinpointing channels in the cement, and ensuring confident squeeze or no-squeeze decisions. Because of its increased depth of investigation, the Isolation Scanner also provides detailed information about casing and casing-within-casing eccentralization, allowing for better identification of whipstock locations for sidetracking, while its internal-diameter and thickness measurements identify corrosion and drilling-induced wear.
The Flow Scanner production-logging service provides unambiguous flow profiling in nonvertical wells regardless of phase mixing or recirculation. Its measurements represent a quantum leap in the accuracy of multiphase-flow measurements in highly deviated or horizontal wells. The Flow Scanner also provides three-phase-flow rates that are computed in real time, providing the flow details necessary to make production and workover decisions more confidently.
It is our goal to see incremental improvements in wireline technology. The number of breakthroughs will always be limited, but the next one we see in wireline technology will be with sampling. The ability to take purer samples and evaluate them in situ (downhole) in a shorter time in any formation-fluid environment—heavy, medium, and light oils; oil-based muds; and condensates—will move the standard in fluid analysis and improve the planning of future completions and facilities.
We expect to see a better understanding of depletion and pressures, as well as less hydrocarbon-to-surface when testing to evaluate compartmentalization. This will be the result of new and innovative downhole methods.
The oilfield service industry sector outlook is extremely bullish. Short of a major world recession or dramatic change in demand from India or China, we feel confident that today’s environment will endure for the next few years.
Recruiting, training, and retaining a stable workforce are the most significant challenges for service companies. Meeting the increased industry needs for capacity and new technology remains a significant challenge for us.
In any market dynamic, there will be either a buyer or seller in a position of strength. The oilfield industry is no exception. That said, extended cycles either up or down may establish a damaging position of strength for one party or the other.
A combination of improvements should be made to meet consumer needs better.
Operators are working to lower exploration and development costs and increase
recovery factors. Both of these necessitate the use of smarter, new
technologies. Service companies, in turn, need to speed the rollout and uptake
of new technologies that answer these needs.