Multiphase Progressive Cavity Pumps Operated In Harsh Conditions
Bibliographic record
Abstract
Abstract The multiphase progressing cavity pump, PCM Moineau HR (Hydraulically Regulated Progressive Cavity Pump), is a major improvement in the operating philosophy of the traditional PCP. By design, the volumetric pump is capable of handling solid, liquid and vapor phases. However, solid leads to abrasion and vapor to overheating and reduced life span where liquid is usually the added value in the process. Several papers have been issued at the SPE PCP, showing first the promising characteristics of this new principle on test bench and then the first industrial version in Venezuela. The learning curve associated with the failures has enabled to come up with a new design that resolves the abrasion and the mechanical weakness of the former NPCP (old name for this multiphase pump), keeping the core advantages of the multiphase design, that is balancing pressure and temperature homogeneously all along the pump, to get an optimum performance and a mucher higher runlife. This paper presents the case story of a HRPCP installed in Venezuela with Equimavenca, running in harsh condition with heavy gassy oil, as well as the improvement performed ever since. It has been running for more than 20 months, producing 1600 to 2300 scf/sbl of gas.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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 teacher head, 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".