Bibliographic record
Abstract
Technology Focus The electrical-submersible-pump (ESP) industry has achieved many milestones this year, with a new publication, record-setting workshop, and an international standard in development. Recently, SPE published its first reprint on ESP technology. This volume contains key papers that give a “state of the industry” perspective on the extent to which ESP technology has evolved and which areas have been most pre-dominant. Topics include subsea and deepwater applications, extreme environments, alternative deployment, reliability information, and failure tracking. It is available online as a digital edition from the SPE Bookstore. (Lesson learned—First, check with your information-technology department to ensure that your company supports use of the digital-editions software.) In April 2011, the SPE ESP Workshop (sponsored by the Gulf Coast Section) had a record attendance of 560 people from 24 countries. This 5-day event included continuing-education classes, a technical session with 31 papers, and a sold-out exhibition area. To learn more about this event, go to www.espworkshop.com. It was at the SPE ESP Workshop that the industry caught its first glimpse of what is being covered in the new international standard for ESPs (ISO 15551-1). The ISO ESP committee has been working hard over the past 11/2 years to draft a standard that contains requirements for pumps, gas handlers, intakes, mechanical gas separators, cables and motor-lead extensions, seal-chamber sections, and induction motors. The expected date for publishing ISO 15551-1 is 2013, the same year as the next SPE ESP Workshop. Papers selected for this feature cover three areas of ESP research and advancement: understanding how liquid viscosity under two-phase-flow conditions affects centrifugal-pump performance, pushing ESP technology for deepwater developments, and a case study on reliability improvements through data col-lection, interpretation, and benchmarking. Artificial Lift additional reading available at OnePetro: www.onepetro.org SPE 134068 - “Application of Composite Jet-Rod Pumping System in a Deep Heavy-Oil Field in Tarim, China” by Jianxin Shen, China University of Petroleum, Beijing, et al. SPE 142764 - “Assessing Gas Lift Capability To Support Asset Design” by James W. Hall, SPE, Qatar Petroleum, et al. SPE 137264 - “Inherent Dangers in PCP Run-Life Field-Data Analysis” by John Sheldon, SPE, C-FER Technologies, et al.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.004 | 0.004 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.115 | 0.106 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".