Bibliographic record
Abstract
Nearly 110 participants in an SPE Applied Technology Workshop (ATW) on Horizontal Wells heard Pemex Subdirector of Technical Coordination Heber Cinco Lay and Canadian Triton Intl. President and ATW Chairperson Jack Nelson explain synergistic developments that have contributed to elevating horizontal drilling to a qualified, viable alternative to vertical wells. Held in Tabasco, Mexico, the 2-day ATW stressed the importance of lateral-drilling technology to Pemex operations and invited knowledge exchange. Referencing the industry's steep learning curve with multilateral drilling, Nelson traced the progression of lateral-well technology from the first recorded true horizontal well drilled near Texon, Texas, in 1929 to the Austin chalk and Bakken shale successes during the 1980s to horizontal displacements running to more than 23,000 ft in the Dan field. The technical program, consisting of eight sessions, featured 25 speakers from major operators and service companies presenting on the following topics:Why and When To Plan To Drill Horizontal—Included a case history on the Agua Fria field, increasing productivity using lateral-well technology, application-risk-evaluation barriers and limitations, and an update on specific horizontal-well technology.Geomechanics and Advanced Wellbore Modeling—Included horizontal-wellbore stability issues; effect of anisotropy on productivity ratio for high-permeability, naturally fractured reservoirs; and workflow based on an integrated Earth model.Horizontal Drilling Techniques—Included wellbore quality and effect on drilling and completion, underbalanced lateral drilling, and well construction.Horizontal Completion Techniques—Included the candidate selection process for horizontal, openhole completions; openhole horizontal-well sand-control completion options; and practical installation of an expandable sand-control screen.Well Intervention Issues and Remedial Operations—Included the importance of geomechanical parameters in horizontal drilling, wellbore-debris-management systems, and use of swell packers for zonal isolation in long deviated horizontal and multilateral open holes.Evaluation of Horizontal-Well Performance—Included a case history of Chevron's Captain field (an offshore heavy-oil horizontal-well development project) and stimulation of horizontal wells in low-permeability, deepwater, carbonate reservoirs.Workflow Process: Keys to Success—Included discussion of Pemex's "front-end loading" modeling and design methodology, the impact of digital technologies on planning and drilling horizontal wells, and motivations for drilling horizontal and multilateral wells in the Faja Petrolifera del Orinoco in Venezuela.New Technologies and New Challenges—Included techno logical advances in horizontal gravel-pack systems, use of horizontals for heavy oil in deep water, and a case history of an expandable screen applied to a horizontal gas well in Mexico.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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".