TOOLS · CROSS-SECTION · TEXAS
2 wells, subsea datum
West to east, 0.3 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.
- ABig Tree West B #4B
- BBig Tree West D #8B
| Formation | A | B |
|---|---|---|
| Salado | 1,310 MD 1,381 | 1,311 MD 1,392 |
| Yates | 448 MD 2,243 | 422 MD 2,281 |
| Seven Rivers | 285 MD 2,406 | — |
| Queen | -290 MD 2,981 | — |
| Grayburg | -655 MD 3,346 | -592 MD 3,295 |
| San Andres | -895 MD 3,586SAN ANDRES - SALTWATER FLOW | -902 MD 3,605SAN ANDRES - SALTWATER FLOW |
| Glorieta | -1,857 MD 4,548 | — |
| Clear Fork | -2,592 MD 5,283 | -2,516 MD 5,219 |
| Upper Spraberry | -3,885 MD 6,576 | -3,897 MD 6,600 |
| Spraberry | -4,874 MD 7,565 | -4,894 MD 7,597 |
| Dean | -5,168 MD 7,859 | — |
| Wolfcamp A | -5,280 MD 7,971 | -5,286 MD 7,989 |
| Wfmp A | -5,280 MD 7,971 | -5,698 MD 8,401 |
| Wfmp B | -5,699 MD 8,390 | — |
| Wolfcamp B | -5,699 MD 8,390 | — |
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.