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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/geothermal-drilling-pipeline-integrity-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Oil, Gas & SubsurfaceGeothermal Drilling Pipeline Integrity Patents
- A single assignee dominates the corpus. Eavor Technologies holds the most-cited records in this set, including the CA3050274A1 family cited nine times.
- Filing peaked in 2019 and has gone flat since. The midpoint year, 2022, shows zero filings, and the trend has not recovered through the latest recorded year.
- Filings cluster in Canada, with a thin spread elsewhere. Canada accounts for 4 of the tracked receiving-office filings, versus 2 or fewer each in New Zealand, the Philippines, Singapore and via the PCT route.
11
Published Records
CA
Leading Jurisdiction
2019
Peak Filing Year
E21B
Lead IPC Subclass
Published byPatsnap Research··6 min readSourced from Patsnap Eureka
Overview
What this landscape covers
This dataset tracks patent families at the intersection of geothermal drilling and casing or wellbore integrity — records tagged with casing integrity, wellbore integrity, corrosion monitoring or high-temperature casing durability language, filtered to the E21B47, E21B17 and C23F11 IPC subclasses. It is a narrow, purpose-built slice rather than a broad geothermal-drilling corpus, which is why the total family count is small.
With 11 published records across the full 2015–2026 window, the field reads as an early, concentrated one rather than a mature, distributed one. A handful of families carry almost all of the citation weight, and the receiving-office spread points to a small number of jurisdictions where applicants have actually chosen to file.
Filing activity and technology composition
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
The data
Filing trend and technology composition
Two views of the same 11-family corpus: how filing activity has moved year over year, and which technology subclasses the records sit in.
Filings peaked in 2019, then dropped to zero
Filings ran from 0 in 2017 to a peak of 11 in 2019, then fell back to 0 by the 2022 midpoint and have not recovered through 2026. Because publication typically lags filing by around 18 months, the most recent years are understated, but the flat 2022–2026 stretch is a real gap in visible activity, not just a reporting artefact.
Two subclasses carry the entire corpus
Every one of the 11 records is classified under both E21B (earth and rock drilling for wells) and F24T (geothermal systems), meaning this is a corpus defined by the overlap of drilling mechanics and geothermal-specific system claims rather than a broad spread across adjacent classes.
Shares are the percentage of the 11 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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The most-cited records
Representative filing
Method for thermal profile control and energy recovery in geothermal wells
EAVOR TECHNOLOGIES INC.
The method controls temperature maxima and minima along the heel-to-toe length of geothermal well lateral sections by pairing wells in close thermal contact and circulating working fluid in opposing directions through each. The lateral section connecting the pair is formed and sealed directly in the rock during drilling without casing, and the counter-flow arrangement is used to equalise fluid temperature and reduce thermal extremes across the well pair.Filed by Eavor Technologies Inc., published 2021-01-29 under NZ764718A.
View full recordMost-cited families in this corpus
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | CA3050274A1 | Method for thermal profile control and energy recovery in geothermal wells | 9 |
| 2 | WO2020034024A1 | Method for thermal profile control and energy recovery in geothermal wells | 4 |
| 3 | CA3167574A1 | Method for thermal profile control and energy recovery in geothermal wells | 1 |
Citation counts reflect influence within this searched corpus and skew toward older, earlier-published families; they are not a measure of current commercial importance.
Publication numbers are shown where the record carries one (3 of 3 rows); clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers say
Three findings that shape how a competitive-intelligence or freedom-to-operate review of this space should be scoped.
Concentration
9 citations
on the top-cited family
Influence sits with one applicant
The CA3050274A1 family, and its related WO2020034024A1 and CA3167574A1 counterparts, all describe the same thermal-profile-control method and account for the corpus's citation weight. A freedom-to-operate check in this space starts with that family, not with a broad applicant survey.
Based on most-cited records in the tracked corpus.
Momentum
0 in latest year
for the leading assignee
Activity has gone quiet, not disappeared
The leading assignee shows no new filings in the latest tracked year, consistent with the corpus-wide flat trend since 2022. That is more likely a filing-to-publication lag effect than a genuine exit from the space, given how concentrated prior activity was around 2019.
Recent-year momentum by assignee.
Geography
4 of 11
receiving-office filings in Canada
Canada is the primary filing venue
Canada draws more receiving-office filings than any other jurisdiction tracked here, with New Zealand, the Philippines and Singapore each drawing two and a single PCT filing rounding out the set. That pattern suggests the commercial and regulatory focus for this technology has so far been Canadian-anchored.
Receiving-office counts across the tracked corpus.
Eureka AI Agent
Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to geothermal drilling pipeline integrity, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players
Who is filing
The assignee picture here is narrow: one applicant carries the corpus's most-cited work, and the remaining records thin out quickly. That leaves several technically adjacent areas essentially unclaimed within this dataset's scope.
Leading assignee
9 citations
top family citation count
Eavor Technologies Inc.
Eavor's NZ764718A and related family members describe closed-loop, casing-free lateral sections with counter-flow thermal management — a design choice that sidesteps some casing-integrity failure modes entirely by removing casing from the lateral section.
Representative record: NZ764718A, published 2021-01-29.
Filing venues
Canada: 4
of 11 receiving-office filings
Canada-anchored filing strategy
With four of the tracked filings routed through Canada and the remainder split thinly across New Zealand, the Philippines, Singapore and the PCT, applicants in this space have not yet built out a wide multi-jurisdiction filing footprint.
Receiving-office distribution across the corpus.
Corpus size
11 families
total in this landscape
A small, early-stage corpus
At 11 published families across more than a decade of coverage, this is a niche technical intersection rather than an established sub-field, which means claim boundaries are still being tested rather than settled.
Total records and families tracked, 2015–2026.
Filing momentum by year
| Assignee | Recent year | YoY |
|---|---|---|
| Eavor Technologies Inc. | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's next
Where to take this
The corpus is small enough to review family-by-family rather than relying on statistical summaries alone.
Map the leading family's claim scope
Read the independent claims of the CA3050274A1 / WO2020034024A1 / CA3167574A1 family set against your own casing or thermal-management design before committing engineering time.
Explore the claims in Eureka →Watch for a publication catch-up
Because publication lags filing by roughly 18 months, the flat 2022–2026 trend may still fill in; recheck this landscape after the next data refresh.
Set a monitoring alert in Eureka →Test the white-space branches
Casing-free thermal management is claimed; real-time corrosion sensing and high-temperature alloy joints in this exact IPC intersection are not yet crowded.
Run a novelty search in Eureka →Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions
Eavor Technologies Inc. holds the most-cited family in this corpus, centred on NZ764718A and its related CA and WO counterparts, all describing thermal-profile-control methods for geothermal well pairs. This family is cited far more than any other record tracked here, which makes it the first stop for a freedom-to-operate review. No other assignee in this dataset approaches that citation weight, so the field currently reads as led by a single applicant rather than contested among several.
The tracked corpus peaked at 11 filings in 2019 and fell to zero by the 2022 midpoint, staying flat through the latest recorded year. Part of this is a publication-lag artefact, since patent filings typically take about 18 months to appear in public databases, understating the most recent years. But the multi-year flatness suggests a genuine slowdown in new filing activity in this specific technical intersection, not just a reporting delay.
Not entirely. Eavor's leading family describes forming and sealing a lateral section directly in rock without casing, which changes the failure modes an operator has to manage but does not remove patent risk — the counter-flow thermal-management method itself is claimed. Anyone designing a casing-free lateral should still check that family's claims for the specific fluid-circulation and temperature-equilibration steps, since those are what is protected, not the general absence of casing.
Within this tracked corpus, Canada leads with 4 of 11 receiving-office filings, followed by New Zealand, the Philippines and Singapore at 2 each, and a single filing through the PCT route. This points to a Canadian-anchored filing strategy so far, with international coverage still thin and uneven rather than broad.
Based on this dataset, yes: the corpus's citation weight sits almost entirely on thermal-profile-control methods rather than on casing alloy composition, real-time corrosion sensing, or cementless zonal isolation. Those adjacent branches show little to no dedicated filing activity within this IPC intersection, which suggests a first, carefully scoped claim there would not immediately collide with the dominant existing family.
Answers are grounded in the same dataset. Derived from a Patsnap search on Geothermal Drilling Pipeline Integrity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.