geo.agentroy.xyzField record — mud logging, wellsite geology, geotechnicalroy.mayaank@gmail.comagentroy.xyz ↗

Mayank Roy

Wellsite Geology & Field Operations

Seven-plus years on active drilling rigs across the Delaware and Midland Basins — running the mud logging unit, calling formation tops, evaluating shows, and watching the well for kicks and losses. Then three years building the reporting and automation the same data feeds. MS Petroleum Engineering, New Mexico Tech.

01

Where I have worked

Basins, counties and formations from seven years of Permian and Delaware Basin operations.

SE New Mexico — Delaware BasinEddy County — Carlsbad, Loving, Malaga, Artesia, Whites City corridor. Lea County — Jal, Hobbs, Eunice, Monument. Horizontal development programs and vertical pilot wells.
West Texas — Midland BasinBased out of Midland and Odessa; wells across Midland, Ector, Andrews, Martin, Reeves, Ward, Winkler and Loving Counties — Midland Basin and the Texas Delaware.
Formations loggedBone Spring 1st, 2nd and 3rd · Wolfcamp A–D · Delaware Sands · Avalon Shale · Brushy Canyon · Yeso · San Andres · Spraberry · Dean · Cisco/Canyon · Devonian · Rustler and Salado salt sections.
On the unitCuttings catching and description, gas chromatography and calibration, real-time striplogs, formation top picks, kick-off/landing/casing point support, LWD/MWD and directional QC, pit and trip-tank surveillance, sensor installation and field repair.
Beyond the unitSenior man supervising and training junior mud loggers; technical contact between rig floor, operator geologist and company man; field quality assurance management at GeoTek USA with audit-ready records and corrective actions to closure.

Oilfield operations dashboard

Python · SQL · multi-source joins · web app

Pulls production, cost and operational records from separate systems into one executive view, with the joins and unit reconciliation that field data always needs before it can be compared.

One screen instead of four exports. Live demo →

Company Man dashboard

Python · vision extraction · local-first · nginx

A rig-site reporting tool for the company man. Photograph the tank board, the mud report, the morning numbers — the app reads them, returns a formatted report and a mobile dashboard the office can open. Runs on the company man's own laptop with a folder connection, or hosted.

Built from seven years of field experience with how rig-site data is captured and re-entered. Product page →
02

Experience

Seven years on active drilling rigs across the Permian and Delaware Basins, and a master's in petroleum engineering from New Mexico Tech. I catch the sample, run the chromatograph, call the top — and I build the dashboards that the data ends up in.

Feb 2023 —
Apr 2025

Senior Wellsite Geologist / Mud Logging Unit Supervisor

EDGE Services · Midland & Odessa, TX and Carlsbad / Jal, NM
  • Ran the mud logging unit as senior man on horizontal Bone Spring and Wolfcamp programs in Eddy and Lea Counties, NM and Midland Basin wells out of Midland/Odessa, TX.
  • Interpolated formation tops and assisted the operator geologist in picking kick-off points, landing points and casing points from sample and log correlation, keeping laterals in zone.
  • Described cuttings, evaluated fluorescence, cut and gas shows, and issued real-time show calls that drove coring, testing and completion decisions.
  • Quality-checked mud log, LWD/MWD and directional survey data before delivery; caught depth, lag and sensor discrepancies before they reached the client.
  • Provided continuous well control surveillance — pit levels, flow, trip tank and gas trends — and alerted the driller and company man to influx, lost circulation and hole-cleaning problems.
  • Trained and mentored junior mud loggers; maintained and repaired unit sensors, gas traps and data acquisition hardware in the field.
  • Built Power BI dashboards over the same drilling and geological data — the analytics half of the same job.
Aug 2017 —
Jan 2023

Wellsite Geologist / Mud Logger

Weatherford International · Paladin Geological Services · Selman & Associates · SE New Mexico & West Texas
  • Manned mud logging units on Delaware Basin horizontals across Eddy and Lea Counties, NM (Carlsbad, Jal, Hobbs, Loving, Artesia) and Midland Basin wells staged out of Midland and Odessa, TX.
  • Caught, washed and described cuttings at prescribed intervals through Bone Spring, Wolfcamp, Delaware Sand, Avalon, Yeso and San Andres sections; correlated to offset logs to call tops and confirm landing depth.
  • Operated and calibrated gas chromatographs (C1–C5); monitored total, connection and trip gas; used gas ratio analysis for pay identification; monitored H2S and responded to alarms.
  • Monitored pit volumes, flow-in/flow-out and trip tank for kick detection; reported lost-circulation zones through Rustler/Salado salt and fractured intervals and supported mud-weight decisions.
  • Owned data quality control at the wellsite — the first line of defense for records feeding engineering, regulatory and public reporting.
  • Produced and transmitted daily mud logs, gas ratio plots and end-of-well reports; maintained sample inventory and shipping to operator and state requirements.
  • Worked remote locations on 12-hour tours, night shifts, weekends and extended hitches.
 

Quality Assurance Manager

GeoTek USA
  • Owned quality assurance across field projects — on-site inspections verifying execution against project plans and quality standards, catching issues before they reached the client.
  • Collected field data and maintained project records and QA documentation in an audit-ready state.
  • Coordinated across field crews, office teams and clients to keep jobs on schedule and to specification; escalated deviations early and drove corrective actions to closure.
2025 —
present

Data & Automation Engineer

Independent consultant · New Mexico
  • Build data and reporting automation for oilfield and professional-services clients in Python and SQL — production, cost and operational datasets.
  • Remained available for field call-out throughout; oilfield domain work is the core of the practice.
03

Capabilities

Sample & formation work

Cuttings catching, washing and description under binocular microscope · lithology and porosity logging · calcimetry · UV fluorescence, cut and stain · sample bagging, labeling and shipping to operator and state spec

Gas detection

Chromatograph operation, calibration and troubleshooting (C1–C5) · total, connection, trip and background gas · gas ratio analysis for pay identification · H2S monitoring and alarm response

Logs & interpretation

Real-time striplog and mud log generation · formation top picks and offset correlation · kick-off, landing and casing point support · LWD/MWD and directional survey QC · daily geological and end-of-well reports

Well control & hazards

Pit volume, flow-in/flow-out and trip tank monitoring · kick and influx warning calls · lost circulation through salt and fractured sections · hole cleaning · drilling parameter surveillance (ROP, WOB, RPM, torque, pressure)

Basins & formations

Delaware Basin (Eddy & Lea Co., NM) · Midland Basin (Midland, Ector, Andrews, Martin, TX) · Bone Spring 1st–3rd · Wolfcamp A–D · Delaware Sands · Avalon · Brushy Canyon · Yeso · San Andres · Spraberry · Rustler/Salado salt

QA & field management

On-site inspection against project plans and quality standards · audit-ready project records · crew, office and client coordination · deviation escalation and corrective action

Unit & instrumentation

Mud logging unit rig-up and rig-down · sensor installation and field repair · gas trap maintenance · data acquisition and WITS feeds · Pason and rig-floor integration · remote data transmission

Digital geoscience

Power BI dashboards over drilling and geological data · Python and SQL for log and sample datasets · Hadoop/HDFS for large operational logs · automated reporting

Operations data

Well status, lifecycle and history records · wellbore and completion data · operational dataset management and exception cleanup · discrepancy research across systems · production and regulatory reporting support · cost coding accuracy

Coordination

Interface between rig, operator geologist, company man and office · cross-functional work with engineering, regulatory, environmental and accounting · action tracking to closure · vendor coordination · training non-technical staff on the systems delivered