| Patent application number | Description | Published |
|---|
| 20090008079 | METHODS AND APPARATUS TO SAMPLE HEAVY OIL IN A SUBTERRANEAN FORMATION - A method for sampling fluid in a subterranean formation includes, reducing a viscosity a fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of a fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurizing by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected. | 01-08-2009 |
| 20090049889 | DOWNHOLE MEASUREMENT OF FORMATION CHARACTERISTICS WHILE DRILLING - A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements. | 02-26-2009 |
| 20090050369 | DOWNHOLE MEASUREMENT OF FORMATION CHARACTERISTICS WHILE DRILLING - A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements. | 02-26-2009 |
| 20090198447 | SYSTEM AND METHOD FOR DISPLAYING DATA ASSOCIATED WITH SUBSURFACE RESERVOIRS - Method and system for visualizing one or more properties of a subterranean earth formation while drilling a borehole using probability information from a modeling process. Probability waveforms based on information from a plurality of borehole stations may be plotted, either alone or superimposed onto other graphical representations, to provide a visual display that is easily interpreted by a user to make geosteering decisions. The probability waveforms include peaked sections that are proportional to the amount of uncertainty or error associated with a boundary estimate at a particular distance from an axis of the borehole. By providing a visual display of the uncertainty, a user can make better geosteering decisions. | 08-06-2009 |
| 20090271117 | System and Method for Deep Formation Evaluation - A technique facilitates formation evaluation by deploying tools in a subterranean environment. A logging tool is deployed in a wellbore to obtain formation related measurements. Additionally, one or more mobile robots also are positioned in the subterranean environment at unique positions that facilitate accumulation of data related to the formation. The data obtained from the logging tool and the one or more mobile robots is processed in a manner that enables deep formation evaluation. | 10-29-2009 |
| 20100030477 | ELECTROMAGNETIC DIRECTIONAL MEASUREMENTS FOR NON-PARALLEL BED FORMATIONS - An orientation vector, referred to hereinafter as the “geosteering vector,” is directed to the more conductive formation area within the DOI of the tool and away from the more resistive formation areas. Accordingly, drilling in a direction opposite the geosteering vector leads to more resistive formation. Also, the disclosed geosteering vectors obtained from the real and imaginary components will not align with each other for non-planar formations and therefore the misalignment of the geosteering obtained from real and imaginary components is indicative of a non-planar formation. A superposition method is disclosed which can be used to calculate electromagnetic (EM) couplings in a non-planar geometry formation (as well as in a planar geometry formation) in real time, without requiring two or three dimensional modeling calculations. | 02-04-2010 |
| 20100191470 | METHOD AND SYSTEM TO ESTIMATE FRACTURE APERTURE IN HORIZONTAL WELLS - A method for estimating a fracture aperture in a formation penetrated by a well includes obtaining at least one of a vertical resistivity (Rv) and a horizontal resistivity (Rh) of the formation; obtaining a mud resistivity (R | 07-29-2010 |
| 20100312478 | LOG PROCESSING IN HIGHLY DEVIATED WELLBORES - A method for processing well logging data includes method dividing the well logging data into a number of constant dimensional effect segments, where each constant dimensional effect segment defines an interval having a similar dimensional effect on the log response. The well logging data is taken from a highly deviated well, which may include portions deviated at greater than 90-degrees. The method further includes dividing the constant dimensional effect segments into a number of constant property intervals, each constant dimensional effect segment including at least one corresponding constant property interval, and each constant property interval defining a wellbore distance over which a formation property is substantially constant that results in a log response having a low variance. The method further includes providing the constant property intervals to an output device. The method further includes determining constant property intervals in 3D volume space projected them into true stratigraphic thickness, and providing the resulting log-squared data to the output device. | 12-09-2010 |
| 20110098929 | SYSTEM AND METHOD FOR IMPROVING SURFACE ELECTROMAGNETIC SURVEYS - A technique provides a methodology for improving surveys of subterranean regions. The methodology comprises estimating macro anisotropy and an intrinsic or micro anisotropy of an overburden. A surface electromagnetic survey is conducted, and the data from the survey is inverted based on or including information gained from estimating the macro anisotropy and/or intrinsic anisotropy. A processor system can be used to conduct the inversion with the adjustments for anisotropy to improve the information provided by the survey. | 04-28-2011 |
