MPD Pore-Pressure & Kick Detection Patent Landscape
The MPD pore-pressure and kick detection patent space is tightly concentrated, with Weatherford Technology Holdings commanding the largest position among a small field of oilfield-services and specialist firms. The field expanded to a peak in 2021 and has since eased, placing it in a post-peak stage where selective white space remains in adjacent instrumentation and fluid-control branches.
Weatherford leads a highly concentrated, specialist field
Weatherford Technology Holdings LLC holds the largest position in the ranking, followed by SafeKick Americas LLC and the consolidated Schlumberger family of entities. The top five filers account for 53% of the hundred largest filers’ combined total, a level of concentration that reflects the niche, operationally specialised nature of managed-pressure drilling detection technology.
A clear two-tier structure is visible: Weatherford stands well ahead of any single challenger, while the Schlumberger entities collectively represent a substantial second bloc. Below them, operators such as ExxonMobil Technology & Engineering and Saudi Arabian Oil Company hold smaller but strategically meaningful positions, signalling that end-user companies are filing independently rather than relying entirely on service providers.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Weatherford Technology Holdings LLC | 63 | |
| 2 | SafeKick Americas LLC | 15 | |
| 3 | Schlumberger Holdings Ltd | 11 | |
| 4 | Schlumberger Technology BV | 10 | |
| 5 | Weatherford-Lamb Inc | 9 | |
| 6 | Citadel Drilling Ltd | 9 | |
| 7 | Schlumberger Technology Corp | 8 | |
| 8 | Services Petroliers Schlumberger SA | 7 | |
| 9 | EXXONMOBIL TECHNOLOGY & ENGINEERING CO | 7 | |
| 10 | Halliburton Energy Services Inc | 7 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Schlumberger Canada Ltd | 6 | |
| 12 | Managed Pressure Operations Pte Ltd | 5 | |
| 13 | Grant Prideco LP | 5 | |
| 14 | JLE Inovacao Tecnologica Ltda EPP | 4 | |
| 15 | Saudi Arabian Oil Company | 4 | |
| 16 | Chevron USA Inc | 4 | |
| 17 | Highland Fluid Technology | 3 | |
| 18 | PRAD RES & DEV LTD | 3 | |
| 19 | Smith International Inc | 3 | |
| 20 | Opla Energy Ltd | 3 |
Weatherford’s dominance, built partly through legacy Weatherford-Lamb filings, creates a strong defensive perimeter around rotating-control-device and borehole-pressure-management methods. Challengers seeking freedom-to-operate will need to navigate a dense cluster of E21B patents, particularly in the E21B 21 (drilling fluid circulation) and E21B 33 (sealing and casing) sub-classes.
Filing counts for 2024 and 2025 are subject to typical publication lag and should be treated as lower bounds; the apparent drop in those years does not necessarily reflect actual inventive activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2021 peak followed by easing volume; E21B overwhelmingly dominant
Annual filing activity and IPC class composition together reveal a field that grew sharply into 2021 and has moderated since, while remaining almost entirely anchored in well-drilling methods. The technology mix offers context on where incremental coverage exists and where gaps persist.
Annual filing trend
Filings rose from low single digits in 2017–2018, accelerated through 2019–2020, and peaked at 16 records in 2021 before stepping down. The 2023–2025 counts are affected by publication lag and should not be read as the final tally for those years. The overall multi-year window still registers a modest base of activity, but the field is past its 2021 peak on an annual basis.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The E21B class (earth and rock drilling — wells) accounts for the overwhelming majority of IPC records, confirming that core innovation remains anchored in downhole drilling method and equipment claims. Secondary classes — C09K (drilling fluid materials), F15B (fluid-pressure actuators), F16K (valves), G01F (flow measurement), G05D (control of non-electric variables), and G06F (digital data processing) — each hold a small share, identifying the branches where adjacent or enabling technology coverage is thinner.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Managed pressure drilling using wired drill pipe
Managed pressure drilling using wired drill pipe uses real-time data from downhole sensors to improve management of wellbore pressure, provide early detection of unexpected downhole events, augment surface-based automation, and provide visualization of dynamic wellbore conditions. In addition to improving kick detection and simplifying choke control, the… (excerpt from the patent abstract)
Open this patent in Eureka →| # | Patent | Citations |
|---|---|---|
| 1 | Rotating control device docking station | 112 |
| 2 | Borehole pressure management methods and systems w… | 45 |
| 3 | Drilling fluid pressure control system for a float… | 43 |
| 4 | Drilling with a high pressure rotating control dev… | 37 |
| 5 | Control of Hydraulic Power Flowrate for Managed Pr… | 33 |
| 6 | Surface gas evaluation during controlled pressure … | 22 |
| 7 | Elastic pipe control with managed pressure drilling | 20 |
| 8 | Surface gas evaluation during controlled pressure … | 17 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D investment decisions
The combination of a post-peak filing curve, high leader concentration, intra-Schlumberger co-filing patterns, and a US-centric jurisdiction footprint defines the risk-reward landscape for new entrants and incumbents alike.
Post-peak field with consolidated core IP
The lifecycle stage is Decline, with annual volume having eased back from the 2021 peak. Core rotating-control-device and borehole-pressure-management IP appears well-occupied. New entrants should focus on adjacent enabling technologies — measurement, control software, fluid chemistry — rather than attempting to replicate the densely claimed E21B 21 core.
Lifecycle: DeclineOne dominant player, one large collaborative bloc
Weatherford Technology Holdings holds the largest individual position. The Schlumberger group entities collectively form a second tier but file under multiple legal entities rather than a single consolidated assignee. The top five filers account for 53% of the hundred largest filers’ combined total, leaving limited room for undifferentiated me-too filings. Challengers with a distinct technical angle — particularly in automated control or real-time data analytics — face a more open landscape.
High concentrationCo-filing concentrated within the Schlumberger family
The most active co-filing relationships are between Schlumberger Technology BV, Schlumberger Holdings, Services Petroliers Schlumberger, Schlumberger Canada, and Prad Research & Development — all entities within the broader Schlumberger / SLB ecosystem. With up to six co-filed records per pair, this intra-group coordination is a portfolio management strategy rather than an external partnership signal. No significant cross-group collaborations are evidenced, suggesting the space lacks the open-innovation dynamics seen in some adjacent energy technology fields.
Intra-group onlyUS-centric with selective international coverage
The United States leads jurisdiction coverage, followed by Europe (EPO), Australia, Canada, and WIPO PCT filings. Norway, which is a major deepwater and harsh-environment drilling market, shows a modest but non-trivial presence. Coverage in China, Brazil, and other growth drilling markets is sparse, representing both a filing gap and a potential competitive exposure for technology owners without local protection.
US-led, gap in Asia/LatAmGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Schlumberger Technology BV | Schlumberger Holdings Ltd | 6 |
| Schlumberger Technology BV | Services Petroliers Schlumberger SA | 6 |
| Schlumberger Holdings Ltd | Services Petroliers Schlumberger SA | 6 |
| Services Petroliers Schlumberger SA | Schlumberger Canada Ltd | 4 |
| Schlumberger Technology BV | Prad Research & Development Ltd | 3 |
| Schlumberger Technology BV | Schlumberger Canada Ltd | 3 |
| Schlumberger Holdings Ltd | Prad Research & Development Ltd | 3 |
| Schlumberger Holdings Ltd | Schlumberger Canada Ltd | 3 |
| Prad Research & Development Ltd | Schlumberger Canada Ltd | 3 |
| Prad Research & Development Ltd | Services Petroliers Schlumberger SA | 3 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Weatherford dominates; new entrants Opla Energy and ExxonMobil Tech emerging
Two players define the competitive frontier: Weatherford Technology Holdings as the clear volume leader, and SafeKick Americas as the most focused specialist challenger. Beyond them, Opla Energy and ExxonMobil Technology & Engineering have entered recently and warrant monitoring.
Weatherford Technology Holdings LLC
Weatherford Technology Holdings holds 63 patent records — the largest position by a wide margin — concentrated in E21B 21 (drilling fluid circulation), E21B 33 (sealing), and E21B 47 (measuring or testing boreholes). The legacy Weatherford-Lamb entity contributes an additional 9 patent records with a similar E21B 21 and E21B 33 focus, reinforcing the breadth of this family’s rotating-control-device and borehole-pressure-management coverage. No recent momentum entry for this applicant suggests its portfolio is maturing rather than expanding rapidly.
patent records: 63SafeKick Americas LLC
SafeKick Americas holds 15 patent records with a distinctive emphasis on E21B 44 (automatic control of drilling operations) alongside E21B 21, differentiating it from Weatherford’s heavier sealing-and-equipment focus. This positions SafeKick as the leading specialist in automated kick-detection and control logic. However, recent momentum shows a sharp decline of 93% versus the prior period, indicating that its core filing program has wound down and that its current IP base is largely fixed.
patent records: 15| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| SafeKick Americas LLC | 1 | ▼ -93% |
| Opla Energy Ltd | 9 | ▲ new entrant |
| ExxonMobil Technology & Engineering Co | 6 | ▲ new entrant |
Under-served routes in flow measurement, fluid-pressure control, and valve technology
While E21B dominates the corpus, several adjacent IPC branches show low filing counts relative to their technical relevance to MPD pore-pressure and kick detection. These branches are observations of relative sparsity; each also has a plausible technical rationale for future coverage.
G01F · Flow, level & volume measurement
With only 6 patent records in this branch, precision flow measurement — a critical enabler for early kick detection through return-flow anomaly analysis — is sparsely covered. Given that real-time flow discrepancy is one of the primary kick indicators in MPD, the thin IP footprint here may reflect a reliance on trade secrets or a genuine gap where novel sensor architectures or data-fusion approaches could be protectable. Entrants with measurement instrumentation expertise and a path to downhole or surface integration have a plausible entry route.
Search this in Eureka →G05D · Control of non-electric variables
Only 6 patent records appear in G05D (control of pressure, flow, and other non-electric variables), despite automated pressure management being central to MPD operations. Managed Pressure Operations Pte and ExxonMobil Technology & Engineering show some overlap with fluid-pressure actuator classes, but systematic coverage of closed-loop pressure control algorithms and adaptive set-point management is sparse. This branch sits at the intersection of drilling engineering and process-control software, offering a credible entry path for companies with industrial-automation or digital-twin capabilities.
Search this in Eureka →How leaders differ by technology sub-class emphasis
Route coverage across the main technology branches in the current evidence set.
| Player | E21B 21 · Earth & rock drilling (wells) | E21B 47 · Earth & rock drilling (wells) | E21B 44 · Earth & rock drilling (wells) | E21B 33 · Earth & rock drilling (wells) | E21B 19 · Earth & rock drilling (wells) |
|---|---|---|---|---|---|
| Weatherford Technology Holdings LLC | Strong · 36 | Moderate · 8 | Absent | Moderate · 12 | Emerging · 3 |
| Weatherford-Lamb Inc | Strong · 24 | Absent | Absent | Strong · 14 | Moderate · 9 |
| SafeKick Americas LLC | Strong · 15 | Absent | Strong · 10 | Emerging · 2 | Emerging · 1 |
| Opla Energy Ltd | Strong · 12 | Moderate · 4 | Moderate · 6 | Absent | Absent |
| Schlumberger Technology BV | Strong · 10 | Strong · 7 | Emerging · 2 | Absent | Emerging · 1 |
| Schlumberger Holdings Ltd | Strong · 8 | Moderate · 4 | Moderate · 3 | Absent | Moderate · 2 |
| Managed Pressure Operations Pte Ltd | Strong · 7 | Strong · 7 | Absent | Absent | Absent |
Frequently asked questions
The evidence set covers 66 patent families in scope. The applicant ranking is measured in patent records, which can exceed the family count because a single family may be filed across multiple offices.
Weatherford Technology Holdings LLC holds the largest position with 63 patent records, well ahead of SafeKick Americas LLC (15) and the consolidated Schlumberger entities. The top five filers account for 53% of the hundred largest filers’ combined total.
Annual filings peaked at 16 records in 2021. Activity has eased since then, placing the field in a post-peak, Decline lifecycle stage. Counts for 2024 and 2025 remain subject to publication lag and should be treated as lower bounds.
The United States leads with 52 patent records, followed by Europe (EPO) with 30, Australia with 21, Canada with 20, and WIPO PCT with 18. Coverage in China, Brazil, and other growth drilling markets is very sparse, representing a potential protection gap for technology owners.
The most-cited works identified in the evidence include a rotating control device docking station (112 citations), borehole pressure management methods and systems (45 citations), a drilling fluid pressure control system for a floating vessel (43 citations), and a patent on drilling with a high-pressure rotating control device (37 citations).
The sparsest adjacent branches relative to the dominant E21B core are G01F (flow, level and volume measurement), G05D (control of non-electric variables), F15B (fluid-pressure actuators), F16K (valves and taps), and C09K (materials for drilling fluids). Each has fewer than 12 patent records and plausible technical relevance to MPD detection and control workflows.
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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.
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