Class / Patent application number | Description | Number of patent applications / Date published |
166250160 | Prospecting | 14 |
20090000784 | Method for oil sand exploration and development - The invention provides a method of locating, in terrain containing oil sand deposits and also containing shale, clean oil sands deposits (i.e. those not containing significant shale) which are large enough for economic exploitation. The method includes flying a high sensitivity gravity gradiometer over the terrain and measuring at least one component, preferably the vertical component, of the local gravity gradient field at a number of points in a grid pattern on the terrain. The densities of sand and shale are normally approximately the same, making it difficult to distinguish them. However in an oil sands environment, there can be a sufficient difference in bulk density such that by using a very sensitive gravity gradiometer, or by otherwise reducing the noise signal using appropriate surveying methods, large clean oil sand deposits can be distinguished from other oil sand deposits not large enough for economic exploitation. | 01-01-2009 |
20090114387 | METHODS FOR IDENTIFYING COMPOUNDS USEFUL FOR PRODUCING HEAVY OILS FROM UNDERGROUND RESERVOIRS - Described herein are methods for identifying compounds useful for producing heavy oil from an underground reservoir. The methods facilitate the development of chemicals with improved physicochemical features. The methods generally involve first identifying a physicochemical property of a compound that needs to be improved in order to increase the efficiency of heavy oil removal from underground reservoirs. Next, the physicochemical property is calculated by molecular modeling using semi-empirical or ab-initio calculations. By modifying the molecular model of the compound, the targeted physicochemical property can be optimized. After a suitable compound has been identified, the compound can be synthesized and evaluated. | 05-07-2009 |
20090120636 | Method for performing controlled source electomagnetic surveying with multiple transmitters - Method for separating responses of multiple transmitters m a controlled source electromagnetic survey by using mutually orthogonal transmitter waveforms and transforming the combined response to the frequency domain ( | 05-14-2009 |
20090133870 | Method for Phase and Amplitude Correction in Controlled Source Electromagnetic Survey Data - The method for correcting the phase of measured electric signals or magnetic signals of field data from a controlled source electromagnetic survey (CSES) by comparing the measured field data corresponding to a selected frequency to the simulated data for various signal source receiver offsets ( | 05-28-2009 |
20090133871 | DRILLING, PERFORATING AND FORMATION ANALYSIS - A system and method of drilling and/or perforating uses a laser beam to remove material, such as to perforate the casing, cement and formation or drill a well bore. The system and method can further or alternately encompass material analysis that can be performed without removing the material from the well bore. The analysis can be performed apart from or in connection with drilling operations and/or perforating the casing, cement and formation. The analysis can be used in a feed back loop to adjust material removal, adjust material analysis, determine the location of future material removal, and for other uses. | 05-28-2009 |
20090250211 | Refracture-Candidate Evaluation and Stimulation Methods - Quantitative refracture diagnostic and fracture-injection/falloff models may be used in methods for oil and gas subsurface formation evaluation techniques. More particularly, such methods may be used to select candidate wells and well candidate layers for stimulation treatments in a subterranean formation. An example of a method for selecting well candidate layers for stimulation treatments in a subterranean formation may comprise the steps of: selecting a candidate well; selecting a reservoir layer to be tested; performing a quantitative refracture-candidate diagnostic test on the reservoir layer; determining at least one reservoir property of the reservoir layer using the quantitative refracture-candidate diagnostic test; and modeling a proposed stimulation treatment using the at least one reservoir property in a reservoir simulation model so as to predict the efficacy of the proposed stimulation treatment. | 10-08-2009 |
20090288823 | Efficient Multiple Prediction In Two and Three Dimensions - A method is disclosed that uses (a) source-receiver reciprocity and (b) a method such as ISR DMO (U.S. Patent Application Publication No. 2006/0098529) that allows reconstruction of densely sampled gathers at arbitrary surface locations, to efficiently predict multiple reflections, either surface related or interbed multiples, in seismic data. For each reconstructed gather and each output (field) trace, two traces are extracted corresponding to the field source and receiver positions of the output trace, then they are convolved and the convolution result is added (summed) to that obtained by applying this procedure to previously reconstructed gathers. The efficiency results from the fact that the convolutions are performed by looping over all traces for each “bounce” point, with the outer loop being over bounce points. Once all the reconstructed gathers are processed, multiple predictions are obtained for the whole survey by conventional means. | 11-26-2009 |
20110036569 | DOWN-HOLE TRANSMITTER SYSTEM, METHOD OF INDUCING A TRANSIENT ELECTROMAGNETIC FIELD IN AN EARTH FORMATION, METHOD OF OBTAINING A TRANSIENT ELECTROMAGNETIC RESPONSE SIGNAL, AND METHOD OF PRODUCING A HYDROCARBON FLUID - A down-hole tool provided with a transmitter system for inducing a transient electromagnetic field in an earth formation has an induction coil with a number of windings to generate essentially a magnetic dipole field. The number of windings is divided into two or more groups of windings arranged to cooperatively generate the essentially magnetic dipole field when energized. Switching means are arranged to essentially simultaneously terminate the energizing of the groups of windings. The groups of windings are electrically isolated from each other or connected in parallel to each other, at least when the energizing is terminated. A transient electromagnetic field may thus be induced in an earth formation by essentially simultaneously terminating energizing each group of windings by operating the switching means. A transient electromagnetic response signal may be recorded, and used in a method of producing a mineral hydrocarbon fluid. | 02-17-2011 |
20140151036 | Distributed Clamps For A Downhole Seismic Source - The present disclosure relates to increasing the output power of a clamped seismic or acoustic source disposed in a wellbore without damaging the borehole/casing/cement. One or more sources are provided and carried on a conveyance mechanism. The conveyance mechanism may be a wireline, a coiled tubing, or a drill pipe. The one or more sources are run into and/or out of the wellbore and temporarily disposed at various locations within the wellbore. The one or more sources are temporarily clamped to the wellbore at the various locations using distributed clamping, and a source signal is generated by the distributed clamped source. The distributed clamping device may have multiple clamping mechanisms along an increased length of the source or a continuous clamping mechanism along an increased length of the source. | 06-05-2014 |
20140311736 | Zonal Testing With The Use Of Coiled Tubing - A method and apparatus for measuring formation properties comprising coiled tubing fitted with a bottom hole assembly, wherein said bottom hole assembly comprises means to measure formation fluid properties, means to transmit said formation fluid properties to a surface monitoring system, means to isolate a section of a wellbore, and means to control the flow of fluid entering said coiled tubing. | 10-23-2014 |
20140338897 | METHODS FOR DETERMINING ORGANIC MATTER IN SHALE - A method for analyzing a subterranean formation including measuring an electromagnetic spectrum of a rock sample of the subterranean formation using optical spectroscopy, identifying a first kerogen pixel of a plurality of pixels of the electromagnetic spectrum, and analyzing the first kerogen pixel and estimating a property of the first kerogen pixel. | 11-20-2014 |
20160177715 | Blended Mapping for Estimating Fluid Composition from Optical Spectra | 06-23-2016 |
20180023371 | COMPUTER SUPPORTED EXPLORATION AND PRODUCTION OF HETEROGENEOUS DISTRIBUTED HYDROCARBON SOURCES IN SUBSURFACE FORMATIONS BASED ON MICROBIAL PROSPECTING | 01-25-2018 |
20180024261 | METHODS AND SYSTEMS FOR IDENTIFYING A CLATHRATE DEPOSIT | 01-25-2018 |