Schlumberger Technology Corporation patent applications on March 6th, 2025
Patent Applications by Schlumberger Technology Corporation on March 6th, 2025
Schlumberger Technology Corporation: 25 patent applications
Schlumberger Technology Corporation has applied for patents in the areas of G01N33/28 (3), G06F30/20 (2), E21B43/12 (2), E21B44/00 (2), G01V1/50 (2) G01N23/223 (2), C09K8/467 (1), G01N23/046 (1), G06V20/10 (1), G06T7/0002 (1)
With keywords such as: fluid, into, also, sample, data, based, include, formation, wellbore, and image in patent application abstracts.
Patent Applications by Schlumberger Technology Corporation
Inventor(s): Valerie Gisele Helene Lafitte of Sugar Land TX (US) for schlumberger technology corporation, Dean Michael Willberg of Houston TX (US) for schlumberger technology corporation, Anatoly Medvedev of Cambridge (GB) for schlumberger technology corporation
IPC Code(s): C09K8/467, C04B14/06, C04B14/28, C04B16/04, C04B18/22, C04B28/08, C04B111/00, C04B111/40, E21B33/138
CPC Code(s): C09K8/467
Abstract: composite cement compositions and pumpable slurries for cementing well or at least one zone of the wells are provided and comprise cementitious material that forms calcium silicate hydrates upon exposure to water, inert filler material, nano-sized calcium carbonate particles, and water, wherein the cementitious material has a mean particle size of at least about 0.5 micron and no more than about 20 microns, the inert filler material has particle sizes of at least about 25 microns and no more than about 2 millimeters (mm), and the compositions and slurries have densities of at least about 9.5 pounds per gallon (ppg) and no more than about 12.5 ppg and solid volume fractions of at least about 50%. methods of cementing the wells or the at least one zone of the wells are also provided and comprise pumping the compositions and slurries into the well and allowing the compositions and slurries to set or cure to form or produce lightweight composite cements having compressive strengths of greater than 400 pounds per square inch.
Inventor(s): Samuel Danican of Sugar Land TX (US) for schlumberger technology corporation, Haiyan Zhao of Sugar Land TX (US) for schlumberger technology corporation, Patrice Abivin of Houston TX (US) for schlumberger technology corporation
IPC Code(s): C09K8/76
CPC Code(s): C09K8/76
Abstract: compositions for matrix acidizing and fracture acidizing contain water, an acid, and an acid retarding agent including an alkyl dimethyl benzyl ammonium chloride surfactant. the composition may be prepared and injected into a wellbore penetrating a subterranean formation.
20250075567. ADJUSTABLE DAMPER_simplified_abstract_(schlumberger technology corporation)
Inventor(s): Nadia Domanski of Cheltenham (GB) for schlumberger technology corporation, Edward George Parkin of Whitminster (GB) for schlumberger technology corporation, Katie Kane of Islandmagee (GB) for schlumberger technology corporation
IPC Code(s): E21B17/07
CPC Code(s): E21B17/07
Abstract: a device may include an interior component having an outer diameter (od) surface. a device may include a protective housing positioned around at least a portion of the interior component and having an inner diameter (id) surface proximate the od surface of the interior component. a device may include an adjustable damper positioned between the id surface and the od surface and configured to change size in a transverse direction perpendicular to a longitudinal axis of the interior component.
Inventor(s): Adam Cygan of Sugar Land TX (US) for schlumberger technology corporation, David Engel of Larose LA (US) for schlumberger technology corporation, Joseph Casassa of Sugar Land TX (US) for schlumberger technology corporation, Michael Vince of Katy TX (US) for schlumberger technology corporation, Todor Sheiretov of Houston TX (US) for schlumberger technology corporation, Maxim Klyuzhev of Houston TX (US) for schlumberger technology corporation, Juan Jose Jaramillo of Stonehouse (GB) for schlumberger technology corporation, Benjamin Jean Yvon Durand of Houston TX (US) for schlumberger technology corporation, Maxim Gurevich of Palo Alto CA (US) for schlumberger technology corporation
IPC Code(s): E21B29/00, E21B23/01
CPC Code(s): E21B29/005
Abstract: systems and methods for downhole tubular cutting applications can include a cutting tool that with a cutting head, an anchor module, and a hydraulic module that actuates both. arms of the anchor module open to an inner surface of a tube prior to blades of the cutting head opening to the inner surface. the blades can be operated by a piston. the piston can include a detent that travels across an actuation profile. this can allow a processor to track the cutting position. the processor can adjust the rotational speed of the blades based on feedback from the system.
Inventor(s): Samuel Roselier of Bruz (FR) for schlumberger technology corporation, Romain Neveu of Bruz (FR) for schlumberger technology corporation, Robin Laupie of Bruz (FR) for schlumberger technology corporation, Nicolas Saltel of Rio de Janeiro (BR) for schlumberger technology corporation, Dinesh Patel of Humble TX (US) for schlumberger technology corporation
IPC Code(s): E21B33/122, E21B34/06
CPC Code(s): E21B33/122
Abstract: a technique facilitates improved actuation and use of packers disposed along a well string and placed in a borehole, e.g. a wellbore. a plurality of packers may be disposed along a base pipe, e.g. a production tubing. each packer has an expandable sleeve which may be expanded into a fully expanded configuration establishing a secure, sealing engagement with a surrounding wall. e.g. a surrounding wellbore wall. additionally, a hydrolock prevention valve system comprises a valve which may be actuated to allow or block the flow of fluid from an annular region or regions between the packers.
Inventor(s): Demid Valeryevich Demidov of Novosibirsk (RU) for schlumberger technology corporation, Roman Vladimirovich Korkin of Sugar Land TX (US) for schlumberger technology corporation, Andrey Vladimirovich Fedorov of Novosibirsk (RU) for schlumberger technology corporation, Artem Valeryevich Kabannik of Houston TX (US) for schlumberger technology corporation
IPC Code(s): E21B33/14, E21B47/005, E21B47/047, G01V1/50
CPC Code(s): E21B33/14
Abstract: methods for locating fluid interfaces in a cased wellbore include generating vibrations in the casing, thereby forming oscillations in the wellbore fluids and the casing. the oscillations are detected by a vibration detector. the oscillations are recorded by a data acquisition system. mathematical processing of the oscillations by cepstrum analysis is performed to determine the depths of interfaces between fluids in the annulus. the methods may also be employed to determine the time at which a cement slurry begins to set and harden. the methods may be performed in real time.
Inventor(s): Ahmed Rabie of Sugar Land TX (US) for schlumberger technology corporation, Rasika Prabhu of Sugar Land TX (US) for schlumberger technology corporation, Christopher Daeffler of Sugar Land TX (US) for schlumberger technology corporation, Juan David Estrada Benavides of Katy TX (US) for schlumberger technology corporation, Robert Brown of Houston TX (US) for schlumberger technology corporation
IPC Code(s): E21B41/02, C09K8/54, C09K8/80, E21B43/267
CPC Code(s): E21B41/02
Abstract: a method of reducing corrosion within a wellbore includes placing a wireline including a perforating gun in a wellbore, the wellbore extending through an earth formation and including a casing extending through the earth formation, the wireline including zinc, discharging the perforating gun to form perforations through the casing and in the earth formation surrounding the casing proximate the at least one perforating gun, flowing a fracturing fluid including one or more proppants through the perforations and into the earth formation to open fractures in the earth formation with the one or more proppants, introducing a flushing fluid into the wellbore to displace the fracturing fluid, and flowing a corrosion inhibitor composition into the wellbore and through the perforations with at least one of the fracturing fluid and the flushing fluid. the corrosion inhibitor includes an alkenylphenone, and a substituted 1-azanapthalene. related methods of inhibiting corrosion are also disclosed.
Inventor(s): Samba Ba of Houston TX (US) for schlumberger technology corporation, Maja Ignova of Stonehouse (GB) for schlumberger technology corporation, Zequn Ye of Houston TX (US) for schlumberger technology corporation, Si Jine Roh of Houston TX (US) for schlumberger technology corporation, Vincent Abe of Stonehouse (GB) for schlumberger technology corporation, Ziad Akkaoui of Houston TX (US) for schlumberger technology corporation
IPC Code(s): E21B44/00, E21B7/10
CPC Code(s): E21B44/00
Abstract: a system for, and method of, drill deviation handling within a stand while drilling a wellbore are presented. the techniques include: receiving, by an electronic processor and during a stand, drill state data; comparing, by the electronic processor and during the stand, the drill state data to an active drill plan; detecting, by the electronic processor and based on the comparing, an out-of-tolerance deviation of a drill parameter; and providing, by the electronic processor, an alert of the out-of-tolerance deviation.
20250075613. FIELD EQUIPMENT GPS SYSTEM_simplified_abstract_(schlumberger technology corporation)
Inventor(s): Clinton Chapman of Sugar Land TX (US) for schlumberger technology corporation
IPC Code(s): E21B47/008, E21B43/12
CPC Code(s): E21B47/008
Abstract: a method can include responsive to supplying power to a timer, equipment and a gps unit at a wellsite, receiving information generated by the gps unit; following interruption of power supplied to the equipment and the gps unit, receiving no information; responsive to re-supplying power to the equipment and the gps unit, receiving additional information generated by the gps unit; and analyzing the information and the additional information to determine a wellsite status for the wellsite.
Inventor(s): Zheng Li of Clamart (FR) for schlumberger technology corporation, Orland Guedes of Clamart (FR) for schlumberger technology corporation, Stephane Guimont of Clamart (FR) for schlumberger technology corporation, Viet Tung Nguyen of Clamart (FR) for schlumberger technology corporation, Roel Van Os of Clamart (FR) for schlumberger technology corporation, Hiroshi Hori of Clamart (FR) for schlumberger technology corporation
IPC Code(s): E21B47/107
CPC Code(s): E21B47/107
Abstract: a fluid seal assembly having a sleeve disposed circumferentially around a downhole tool. first and second fasteners extend circumferentially around the sleeve proximate respective first and second ends of the sleeve. the first and second fasteners may comprise a shape-memory alloy that, in response to a temporarily increased temperature, have caused the first and second fasteners to circumferentially compress the sleeve against an outer surface of the downhole tool.
Inventor(s): Renata Ribeiro Gomes Ansaloni of Cairo (EG) for schlumberger technology corporation, Khaled Saleh of Dhahran (SA) for schlumberger technology corporation, Sherif Ghadiry of Dhahran (SA) for schlumberger technology corporation, Wael Abdallah of Dhahran (SA) for schlumberger technology corporation
IPC Code(s): E21B49/08, G01V1/46, G01V1/50
CPC Code(s): E21B49/087
Abstract: processes for characterizing reservoir formations and directing downhole operations based on the characterized reservoir formations. in some embodiments, the process can include combining at least two downhole logs into input data. an interpretation method can be used to convert the input data into interpretative data. elemental analysis can be used to convert the interpretative data into at least one formation model. formation properties can be acquired from the at least one formation model. a reservoir quality classification can be created from the formation properties. the process can also include directing downhole operations using the reservoir quality classification to select a preferred downhole operation location.
Inventor(s): Andrew Prisbell of Sugar Land TX (US) for schlumberger technology corporation, Mohamed Mehdi of Houston TX (US) for schlumberger technology corporation, Jay Garza of La Marque TX (US) for schlumberger technology corporation, Atsushi Nakano of Rosharon TX (US) for schlumberger technology corporation
IPC Code(s): F42B39/14, E21B43/117, E21B43/1185
CPC Code(s): F42B39/14
Abstract: a transportable well completion tool is described. the transportable well completion tool comprises a housing with a charge module disposed within the housing. the charge module comprises explosive charges. an initiator module comprising a detonator is coupled to the housing, and a bulkhead member is disposed within the housing between the initiator module and the charge module. a containment cover is secured to the housing to cover the detonator. the transportable well completion tool can be transported with the containment cover in place, and the containment cover can be removed to connect the well completion tool to a tool string for downhole deployment.
Inventor(s): Jonathan Robert Hird of Cambridge (GB) for schlumberger technology corporation, Andrew David Robinson of Cambridge (GB) for schlumberger technology corporation, Debora Campos de Faria of Cambridge (GB) for schlumberger technology corporation
IPC Code(s): G01L5/00, G01B21/02, H01M10/42, H01M10/44, H01M10/48
CPC Code(s): G01L5/00
Abstract: a battery which has electrodes and electrolyte inside a rigid outer container is fitted with a sensor device in the form of a strap at the exterior of the container. the strap has a strain gauge secured to the strap to observe strain on stretching the strap. the strap incorporates a tightening mechanism for reducing a length of the strap. after the strap has been put in place at the exterior of the container, the tightening mechanism is used to pull the strap taut with a length of the strap pressing against the exterior of the container. the strain gauge may be used to monitor expansion of the outer container during charging and thus indicate state of charge or to monitor expansion during the working life of the battery and this indicates its state of health. the sensor devices may be used for a large number of batteries storing electricity on grid scale, with electronics attached to each strap communicating wirelessly with a battery management system.
Inventor(s): Mohammed Fadhel Al-Hamad of Dhahran (SA) for schlumberger technology corporation, Shouxiang Mark Ma of Dhahran (SA) for schlumberger technology corporation, Denis Vladimirovich Klemin of Houston TX (US) for schlumberger technology corporation, Wael Abdallah of Dhahran (SA) for schlumberger technology corporation
IPC Code(s): G01N23/046, G01N1/40, G01N23/083, G01N33/24, G06F30/20
CPC Code(s): G01N23/046
Abstract: systems and methods are described for correcting ambient condition capillary pressure curves. in an example, the capillary pressure curve of a porous medium can be measured in non-reservoir conditions. samples of the porous medium can be scanned at various confining pressures, and digital models of the scans can be created by a computing device. the computing device can simulate a porous plate experiment on the digital models to create a capillary pressure curve for each model. the computing device can calculate fitting equations for each capillary pressure curve according to capillary pressure points. the fitting equations can be averaged together and applied to the capillary pressure curve of the porous medium to correct for the non-reservoir conditions.
Inventor(s): Reda Karoum of Houston TX (US) for schlumberger technology corporation, Carlos Abad of Houston TX (US) for schlumberger technology corporation
IPC Code(s): G01N23/223, G01N33/28, G01N35/10
CPC Code(s): G01N23/223
Abstract: a method for estimating an elemental composition of a multiphase oilfield fluid includes obtaining a sample of a multiphase oilfield fluid; blending the sample with a viscosity modifying agent to transform the sample into a high viscosity paste; introducing the high viscosity paste into a chamber of an xrf apparatus; using the xrf apparatus to make an xrf measurement of the high viscosity paste; and evaluating the xrf measurement to estimate an elemental composition of the obtained multiphase oilfield fluid.
Inventor(s): Reda Karoum of Houston TX (US) for schlumberger technology corporation, Sangeeth Venugopal of Clamart (FR) for schlumberger technology corporation, Carlos Abad of Houston TX (US) for schlumberger technology corporation
IPC Code(s): G01N23/223, G01N33/28
CPC Code(s): G01N23/223
Abstract: a method for evaluating a multiphase oilfield fluid includes blending a first sample of the fluid with a viscosity modifying agent to transform the sample into a paste; making a first xrf measurement of the paste to estimate an elemental composition of the fluid; making a calcimetry measurement of a second sample of the fluid to estimate a total carbonate concentration of the fluid and to obtain an acidified second sample; separating the acidified second sample to obtain an acidified brine; making a second xrf measurement of the acidified brine to estimate an elemental composition of the acidified brine; and determining an elemental composition of a solid phase of the multiphase oilfield fluid from the elemental composition of the acidified brine and the elemental composition of the multiphase oilfield fluid.
Inventor(s): Sharath Mahavadi of Cambridge MA (US) for schlumberger technology corporation, Dominic Vincent Perroni of Sugar Land TX (US) for schlumberger technology corporation
IPC Code(s): G01N27/447, G01N1/10
CPC Code(s): G01N27/44756
Abstract: a system may obtain one or more samples of an analysis fluid obtained at a predetermined location and containing a target fluid. a system may place the one or more samples into a capillary electrophoresis device. a system may determine a concentration of at least a target ion in the target fluid of the one or more samples using the capillary electrophoresis device. a system may evaluate at least one criterion relative to an extraction plan for extracting the target ion at the location based on the determined concentration.
Inventor(s): Richa Sharma of Cambridge MA (US) for schlumberger technology corporation, Quincy K. Elias of Cambridge MA (US) for schlumberger technology corporation, Terizhandur S. Ramakrishnan of Cambridge MA (US) for schlumberger technology corporation
IPC Code(s): G01N33/28, G01J3/02, G01J3/18, G01J3/28, G01J3/44, G01N21/27, G01N21/65, G01N21/84
CPC Code(s): G01N33/2841
Abstract: processes and systems for monitoring one or more gases dissolved in a liquid. in some embodiments, the process can include introducing a fluid into an inlet of a sample cell, where the fluid includes at least one gas dissolved in a liquid. the fluid can flow through the sample cell such that at least a portion of the fluid flows past an optical window such that the fluid is viewable within the sample cell through the optical window. the fluid can be recovered from an outlet of the sample cell. an electromagnetic radiation signal can be emitted into the sample cell through the optical window for at least a portion of the time the fluid is viewable through the optical window. the fluid can be contacted with the electromagnetic radiation signal within the sample cell. a scattered electromagnetic radiation signal that can include elastic scattered radiation and inelastic scattered radiation emitted from the sample cell through the optical window can be directed into a filter to remove at least a portion of the elastic scattered radiation to produce a primarily inelastic scattered radiation signal. the primarily inelastic scatted radiation signal can be directed to a detector to detect a raman signal indicating the presence of the at least one dissolved gas in the liquid.
20250077548. MANAGING A DATA PLATFORM_simplified_abstract_(schlumberger technology corporation)
Inventor(s): Mandar Janardan Kulkarni of Clamart (FR) for schlumberger technology corporation, Sunil Manikani of Pune (IN) for schlumberger technology corporation, Fabrice Haüy of Clamart (FR) for schlumberger technology corporation
IPC Code(s): G06F16/28, G06F16/22, G06F16/25
CPC Code(s): G06F16/285
Abstract: a method for managing a data platform includes converting a plurality of data records in the data platform into embeddings. the method also includes applying a clustering algorithm to the embeddings to identify a first subset of the embeddings corresponding to a first subset of the data records and a second subset of the embeddings corresponding to a second subset of data records. the method also includes determining that the first subset of embeddings have a similarity with respect to one another that is within a first similarity threshold. the method also includes deleting one or more of the first subset of data records from the data platform in response to the similarity of the first subset of embeddings being within the first similarity threshold.
Inventor(s): David Rowan of Abingdon (GB) for schlumberger technology corporation, Syed Abdul Samad Ali of Abingdon (GB) for schlumberger technology corporation, Stephen Freeman of London (GB) for schlumberger technology corporation
IPC Code(s): G06F30/20, G01V20/00, G06F30/13
CPC Code(s): G06F30/20
Abstract: a method for quantifying and managing energy consumption and emissions equivalents of a subsurface development plan includes generating a plurality of digital representations of the subsurface development plan. the subsurface development plan includes a plurality of wellbores. the method also includes determining fluid production rates from the wellbores, fluid injection rates into the wellbores, or both based upon the digital representations. the method also includes determining that the fluid production rates, the fluid injection rates, or both are within operational constraints, achieve predetermined objectives, or both. the method also includes determining the energy consumption and the emissions equivalents based upon the digital representations. the emissions equivalents correspond to the energy consumption. the method also includes generating a plurality of different subsurface development plans based upon the energy consumption, the emissions equivalents, or both.
Inventor(s): Maria Perezhogina of Houston TX (US) for schlumberger technology corporation, Amir Shamsa of Calgary (CA) for schlumberger technology corporation
IPC Code(s): G06F30/28, G06F30/27
CPC Code(s): G06F30/28
Abstract: a method for predicting a likelihood that a physical phenomenon will occur in an area of interest at a wellsite includes receiving input parameters for a well in the area of interest. the method also includes generating or updating a geomodel based upon the input parameters. the geomodel includes a first model or a second model. the method also includes predicting a pressure result using the geomodel. the pressure result is based upon the input parameters. the method also includes predicting the likelihood that the physical phenomenon will occur in the future in the area of interest based upon the pressure results. the likelihood that the physical phenomenon will occur is predicted using a third model that is different than the first and second models.
Inventor(s): Sunil Manikani of Pune (IN) for schlumberger technology corporation, Vishwanath Sule of Pune (IN) for schlumberger technology corporation, Abbi Moghaiyera Hassan of Houston TX (US) for schlumberger technology corporation, Paul Milne of Aberdeen (GB) for schlumberger technology corporation
IPC Code(s): G06Q30/018
CPC Code(s): G06Q30/018
Abstract: carbon emission auditing includes obtaining a supplier transaction record of an enterprise corresponding to a supplier entity from a transaction repository. a research response corresponding to the supplier entity is obtained from a large language model (llm). a validity of the supplier transaction record based on the research response is further obtained from the llm as a validation response. field values of the record fields of the supplier transaction record are further verified by the llm, and a resulting consistency response is generated. the llm further determines an audit of the supplier transaction record based on the research response, the validation response and the consistency response. an explanation of the occurrence of an audit failure is generated by the llm. the supplier transaction record is further modified, and a new scope emission category necessitated by the modification is assigned to the supplier transaction record.
Inventor(s): Lukasz Zielinski of Arlington MA (US) for schlumberger technology corporation, Manasi Doshi of Cambridge MA (US) for schlumberger technology corporation, Christopher Boucher of Lexington MA (US) for schlumberger technology corporation, Andrew J. Speck of Milton MA (US) for schlumberger technology corporation, Raphael M. Gadot of Sugar Land TX (US) for schlumberger technology corporation, Michael Hayes Kenison of Missouri City TX (US) for schlumberger technology corporation, Gokhan Erol of Fulshear TX (US) for schlumberger technology corporation, Burc Abdullah Simsek of Sugar Land TX (US) for schlumberger technology corporation, Francisco Jose Gomez of Oxford (GB) for schlumberger technology corporation, Krzysztof Sitkowski of Abingdon (GB) for schlumberger technology corporation
IPC Code(s): G06T7/00, G01S17/89, G06V10/10, G06V20/52, G06V20/70
CPC Code(s): G06T7/0002
Abstract: example embodiments provide a method for improved commissioning, interpretation, and automated or remote operation of a methane density camera designed for monitoring of gas emissions. in some embodiments, the method consists of three related but independent steps including commissioning, remote operation, and data interpretation.
Inventor(s): Avinash Lokhande of Pune (IN) for schlumberger technology corporation, Omkar Anil Gune of Pune (IN) for schlumberger technology corporation
IPC Code(s): G06V20/10, E21B44/00, E21B49/00, G06V10/26, G06V10/30, G06V10/44
CPC Code(s): G06V20/10
Abstract: a method for processing an image of a subterranean formation includes performing edge detection on the image to produce a first processed image. the method also includes performing gridlines localizer on the first processed image to produce a second processed image. the method also includes performing noise filtering on the second processed image to produce a third processed image. the method also includes performing pattern recognition on the third processed image to determine that the image that corresponds to the third processed image is linear scale type or logarithmic scale type.
Inventor(s): Bradley Matlack of Shawnee KS (US) for schlumberger technology corporation, Varun Vinaykumar Nyayadhish of Nisku (CA) for schlumberger technology corporation, Gregory Howard Manke of Lawrence KS (US) for schlumberger technology corporation, Patrick Zhiyuan Ma of Lawrence KS (US) for schlumberger technology corporation, Jason Holzmueller of Lawrence KS (US) for schlumberger technology corporation, Vincent Gerstner of Overland Park KS (US) for schlumberger technology corporation, William Goertzen of Lawrence KS (US) for schlumberger technology corporation, Douglas Pipchuk of Calgary (CA) for schlumberger technology corporation, Joseph Varkey of Sugar Land TX (US) for schlumberger technology corporation, Juan Amado of Houston TX (US) for schlumberger technology corporation, Willem Wijnberg of Houston TX (US) for schlumberger technology corporation, Maria Grisanti of Houston TX (US) for schlumberger technology corporation, Xiaohong Ren of Rosharon TX (US) for schlumberger technology corporation
IPC Code(s): H01B7/04, E21B19/22, E21B43/12, H01B7/18, H01B9/00
CPC Code(s): H01B7/046
Abstract: various cables for cable deployed electric submersible pumping systems and methods of manufacturing such cables are provided. the cable includes a power cable core and coiled tubing formed around the power cable core. the power cable core includes one or more conductors, insulation surrounding each conductor, and an elastomeric jacket extruded around the insulated conductors. various mechanisms, systems, and methods are described to anchor the power cable core in the coiled tubing and to transfer weight from the power cable core to the coiled tubing.
Schlumberger Technology Corporation patent applications on March 6th, 2025
- Schlumberger Technology Corporation
- C09K8/467
- C04B14/06
- C04B14/28
- C04B16/04
- C04B18/22
- C04B28/08
- C04B111/00
- C04B111/40
- E21B33/138
- CPC C09K8/467
- Schlumberger technology corporation
- C09K8/76
- CPC C09K8/76
- E21B17/07
- CPC E21B17/07
- E21B29/00
- E21B23/01
- CPC E21B29/005
- E21B33/122
- E21B34/06
- CPC E21B33/122
- E21B33/14
- E21B47/005
- E21B47/047
- G01V1/50
- CPC E21B33/14
- E21B41/02
- C09K8/54
- C09K8/80
- E21B43/267
- CPC E21B41/02
- E21B44/00
- E21B7/10
- CPC E21B44/00
- E21B47/008
- E21B43/12
- CPC E21B47/008
- E21B47/107
- CPC E21B47/107
- E21B49/08
- G01V1/46
- CPC E21B49/087
- F42B39/14
- E21B43/117
- E21B43/1185
- CPC F42B39/14
- G01L5/00
- G01B21/02
- H01M10/42
- H01M10/44
- H01M10/48
- CPC G01L5/00
- G01N23/046
- G01N1/40
- G01N23/083
- G01N33/24
- G06F30/20
- CPC G01N23/046
- G01N23/223
- G01N33/28
- G01N35/10
- CPC G01N23/223
- G01N27/447
- G01N1/10
- CPC G01N27/44756
- G01J3/02
- G01J3/18
- G01J3/28
- G01J3/44
- G01N21/27
- G01N21/65
- G01N21/84
- CPC G01N33/2841
- G06F16/28
- G06F16/22
- G06F16/25
- CPC G06F16/285
- G01V20/00
- G06F30/13
- CPC G06F30/20
- G06F30/28
- G06F30/27
- CPC G06F30/28
- G06Q30/018
- CPC G06Q30/018
- G06T7/00
- G01S17/89
- G06V10/10
- G06V20/52
- G06V20/70
- CPC G06T7/0002
- G06V20/10
- E21B49/00
- G06V10/26
- G06V10/30
- G06V10/44
- CPC G06V20/10
- H01B7/04
- E21B19/22
- H01B7/18
- H01B9/00
- CPC H01B7/046
