Geopressured Geothermal Land Desk

The land and rights desk for geopressured geothermal

We read the county and agency records for a defined area and depth interval, and we show what they say about the ground and the people the records name as holding rights in it.

Concept cross-section of a geopressured geothermal settingA drawn concept section. Two tracts side by side. Below the surface sit shallow aquifers, interbedded sands and clays, an oil and gas zone, a thick shale, a pressured and hot sandstone and deeper shale. An existing oil and gas well and its pad stand on tract A. A second well and a surface pad stand on tract B. An easement runs along the surface. Tract ATract BDEPTH, NOT TO SCALEExisting oil and gas welland its padSecond wellon a surface padEasement(surface, concept)SurfaceShallow aquifersInterbedded sandsand claysOil and gas zoneThick shalePressured, hotsandstone (concept)Deeper shaleConcept drawing. Not to scale. Not a real site.No temperature, pressure or output is shown.Concept cross-section of a geopressured geothermal settingA drawn concept section. Two tracts side by side. Below the surface sit shallow aquifers, interbedded sands and clays, an oil and gas zone, a thick shale, a pressured and hot sandstone and deeper shale. An existing oil and gas well and its pad stand on tract A. A second well and a surface pad stand on tract B. An easement runs along the surface. Tract ATract BExisting oiland gas welland its padSecond wellon a surfacepad12345671Surface2Shallow aquifers3Interbedded sands and clays4Oil and gas zone5Thick shale6Pressured, hot sandstone (concept)7Deeper shaleEasement on the surfaceConcept drawing. Not to scale.Not a real site.No temperature, pressure or output shown.
Plate 1Concept drawing. Not a real site.

What the term means

"Geopressured geothermal" describes deep reservoirs in sedimentary basins where the fluid is held at pressures above the normal hydrostatic gradient; sources describe them as holding hot brine with dissolved methane.

The gradient criteria that sources use are set side by side on What geopressured geothermal means.

Sources: EIA Energy Glossary; Geopressured-Geothermal Research Program Overview, U.S. Department of Energy, 1989; Report of Investigations 117, Bureau of Economic Geology, 1982; Circular 790, USGS, 1979; Recoverable Resource Estimate, NREL, 2012. Read October 4, 2026.

The earlier program

What the DOE program found, and what it says about continued production

Dated statements from the U.S. Department of Energy (DOE) history chapter on its Gulf Coast program, each set out in full on the page linked below.

The program

The chapter says the DOE Geopressured-Geothermal Energy program ran from the mid 1970s to the early 1990s. Appendix A of the chapter prints a budget entry for the program for each fiscal year from 1976 to 1992, and none for 1993 to 2006.

Findings and the economic limit

Section 3.7 of the chapter, Findings and Conclusions, lists the program's significant accomplishments, with items on flow rates, scaling, injection, subsidence and a hybrid power system. The paragraph just before Section 3.7 follows the chapter's economic study of eight well cases. It says that economically driven well and reservoir selectivity, which favors the more hot, more gaseous reservoirs, would significantly limit the number of economically viable geopressured-geothermal resources.

Pleasant Bayou plant

The chapter says that from October 1989 to the end of May 1990 the plant ran at or near design output, except for an occasional outage, and that it was shut down a month early because the brine injection well required rework. It says the plant produced about 1 MW of power from 10,000 barrels per day of 143 degrees C (290 degrees F) brine, with the gas engine at 650 kW and the binary-cycle turbine at 541 kW, and that actual parasitic loads were 260 to 306 kW. The unit is MW, with no e or t added.

The chapter also says that successful operation of the hybrid cycle power plant clearly demonstrated that there were no technical obstacles to electricity generation from the Pleasant Bayou geopressured resource. Its next sentence says that, other than surmountable issues associated with scaling due to the high total dissolved solid content of the typical reservoir brines, a power plant could be built and operated with no technical or economic obstacles. The economic limit the chapter states is in the row above.

Closing paragraph

The closing paragraph of Section 3.7 says that at the time of the research program prevailing economic conditions limited continued production from geopressured-geothermal reservoirs, and that the program laid the foundation for all aspects of future development of this extensive resource. That paragraph names no specific economic condition.

Source: Geothermal History, Reservoir Engineering, Section 3.0, DOE, published September 2010, covering 1976 to 2006: Section 3.0 with its Section 3.7, and Appendix A. Read October 4, 2026.

The core idea

What the oil and gas record says

For the ground where a geopressured project would sit, we start with the oil and gas record. The drawing shows five layers of rights on one made-up piece of ground, and they do not line up. The worksheet lists six items, because it keeps wells and easements apart.

Concept rights stack for one tractFive layers drawn over the same tract: the surface estate, oil and gas minerals, an existing lease, a depth severance, and wells and easements. The owners and boundaries are made up and the layers do not line up with each other, which is the point of the drawing. One tract, drawn from above and then peeled by layer1Surface estatethe ground at the surfaceSurface owner S1farm and pastureSurface owner S2ranch and a road2Oil and gas mineralsthe oil and gas below itMineral owner M1M2 holds partshares may be fractionalMineral owner M33Existing leasea contract over some mineralsLease L1: term and depth clauseread the lease itself4Depth severancea split at a stated depthAbove the stated depth: holder D1Below the stated depth: holder D2stated depth5Wells and easementsrights that cross the layersWell 1Well 2Pipeline easementAccess roadConcept drawing. Owners, lines and wells are made up. The layers are read from different records.Concept rights stack for one tractFive layers drawn over the same tract: the surface estate, oil and gas minerals, an existing lease, a depth severance, and wells and easements. The owners and boundaries are made up and the layers do not line up with each other, which is the point of the drawing. One tract, peeled by layer1Surface estatethe ground at the surfaceSurfaceowner S1Surfaceowner S22Oil and gas mineralsthe oil and gas below itOwnerM1M2 holdspartOwnerM33Existing leasea contract over some mineralsLease L1term and depth clause4Depth severancea split at a stated depthAbove the stateddepth: holder D1Below the stateddepth: holder D2stated depth5Wells and easementsrights that cross the layersWell 1Well 2Pipeline easementAccess roadConcept drawing. Owners, lines and wellsare made up. Each layer is readfrom its own record.
Plate 2Concept drawing. Five layers of rights that can sit on one piece of ground: the surface estate, the oil and gas minerals, an existing lease, a depth severance, and the wells and easements. It shows no real tract.

We read each layer from the record that would show it: county deeds and plats for the surface and the minerals, the lease and any release for the lease, the depth words in deeds and leases for a severance, agency well records for wells, and the recorded instrument for an easement.

The work

What we do

We read the records and organize what they say. To discuss any of it, contact us.

Lease and title research

For a defined area and depth interval.

Interest holders

Identifying surface, mineral and other interest holders.

Lease, unit and severance status

Existing oil and gas leases, units and depth severances, as the record shows them.

Well and records inventory

Wells and records listed from public sources.

Access and surface use

Easement, access and surface use coordination.

Project brief and counterparties

A project brief with the gaps visible, and identification of counterparties.

What this site will not tell you. It does not tell you what a reservoir holds, whether a project is feasible, or who owns what on your tract. We are not engineers, and we promise no outcome.

Start with the place

Tell us which kind of reader you are and the county or parish. Where the short form in this section shows, its button carries both to the request form, where you can add the rest. Nothing is sent until you press Send there.

You can also go straight to the request form and type the same two things.

Continue to request form

Send a request

Step 1 of 2: who you are

Step 1: who you are

Tell us the area and the use

A county or parish and a few lines are enough. We read every request and answer by email.

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