TOOLS · CROSS-SECTION · TEXAS
2 wells, subsea datum
West to east, 0.6 miles end to end. Subsea datum.
How to read it →How to read it ↓
Each column is a well, lettered in the order drawn: west to east when every well has a location, or the order you list them (drag a well in the list, or switch to "As listed"). A well with no tops filed is listed but not drawn.
Under the subsea datum depths are elevation minus measured depth, so tops line up regardless of surface terrain; a value above zero sits above sea level. When not every well reports an elevation the section is in measured depth and the columns are not datum-aligned.
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 →Section · 2 wells drawn
shaded: a formation down to the next one filed in both wellsfiled in one well onlypoint at or tap a top to read it
Tops by well
Subsea feet, with measured depth beneath; the name as filed where it differs; a dash where the well has no top filed for the formation.
- ATom Oconnor (5800 SD) Fld. Unit #Q084 E
- BTom Oconnor (5800 SD) Fld. Unit #118
| Formation | A | B |
|---|---|---|
| Lagarto | -1,452 MD 1,500LARGARTO | -2,698 MD 2,750LARGARTO |
| Oakville | -2,702 MD 2,750 | -3,248 MD 3,300 |
| Catahoula Miocene | -3,252 MD 3,300 | -3,636 MD 3,688 |
| Catahoula | -3,607 MD 3,655 | -4,048 MD 4,100 |
| Catahoula (Miocene) | -4,052 MD 4,100 | — |
| Anahuac | -4,182 MD 4,230 | — |
| Anahuac Miocene | -4,052 MD 4,100 | -4,313 MD 4,365ANAHUAC (MIOCENE) |
| Anahuac (Miocene) | -4,317 MD 4,365 | — |
| Greta | -4,352 MD 4,400 | -4,368 MD 4,420 |
| Frio Greta Oligocene | -4,317 MD 4,365 | -4,369 MD 4,421 |
| Frio-Greta (Oligocene) | -4,737 MD 4,785 | -4,733 MD 4,785 |
| Upper Frio | -5,032 MD 5,080 | — |
| Sinton | — | -5,148 MD 5,200 |
| Middle Frio Sinton | -4,952 MD 5,000 | -5,348 MD 5,400 |
| Middle Frio (Sinton) | -5,352 MD 5,400 | — |
| 5500 | — | -5,598 MD 5,650 |
| Middle Frio | -5,772 MD 5,820 | — |
| Lower Frio Oligocene | -5,832 MD 5,880 | — |
| 5900 Massive | — | -5,853 MD 5,905 |
| Lower Frio (Oligocene) | -5,871 MD 5,919 | — |
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.