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2 wells, subsea datum

West to east, 0.3 miles end to end. Depths are elevation minus measured depth, so tops line up regardless of surface terrain; a value above zero sits above sea level. Each formation filed in more than one well has its own color, joined between neighboring wells and shaded down to the next formation both filed; nothing is interpolated. Where tops come from →

AGreen, C. #2 #53 tops×BBlalock, G. A. #57 tops×
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-0-1,000-2,000-3,000-4,000-5,000-6,000-7,000SUBSEA FTA474 FT ELB455 FT ELNacatochNacatochSub-ClarksvilleSub-ClarksvilleAustin ChalkAustin Chalk

shaded: a formation down to the next one filed in both wellsfiled in one well onlyhover a top or a name to pick out one formation

Tops by well

Subsea feet, with measured depth beneath; a dash where the well has no top filed for the formation.

FormationAGreen, C. #2BBlalock, G. A.
Nacatoch-1,326MD 1,800-1,395MD 1,850
Sub-Clarksville-3,526MD 4,000-3,545MD 4,000
Austin Chalk-3,426MD 3,900-3,945MD 4,400
Woodbine—-3,975MD 4,430
Paluxy—-5,745MD 6,200
Glen Rose—-6,545MD 7,000
Rodessa—-7,645MD 8,100

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Only wells with a location on file can be found by distance; a well with tops but no location can still be added by name or API number.

The tops, as filed

AGreen, C. #2 #5 42-499-00666

TTK Energy LLC · Wood · 474 ft elevation · 4,500 ft TD

FormationMD ftSubsea
Nacatoch1,800-1,326
Austin Chalk3,900-3,426
Sub-Clarksville4,000-3,526

BBlalock, G. A. #5 42-499-00697

TTK Energy LLC · Wood · 455 ft elevation · 7,000 ft TD

FormationMD ftSubsea
Nacatoch1,850-1,395
Sub-Clarksville4,000-3,545
Austin Chalk4,400-3,945
Woodbine4,430-3,975
Paluxy6,200-5,745
Glen Rose7,000-6,545
Rodessa8,100-7,645

About this data

Formation tops and elevations from the RRC dbf900 wellbore file (completion filings), names normalized to the formations registry; well identity from the permit record, location from the shared well record. Subsea is elevation minus measured depth. Nothing between filed tops is estimated.

New to these records? completion reports and the wellbore file

Developers: this page as JSON is GET /v1/data/cross-section, documented in the API reference.