| SERVICES PETROLIERS SCHLUMBERGER Patent applications |
| Patent application number | Title | Published |
|---|
| 20110174503 | METHOD AND APPARATUS FOR INSTALLING A WIRELINE FOR LOGGING OR OTHER OPERATIONS IN AN UNDER-BALANCED WELL - An improved apparatus and a method to insert a wireline through a blow out preventer to log an underbalanced open hole well without killing the well or causing formation damage while maintaining well control during the process. A dual throated blow out preventer ( | 07-21-2011 |
| 20100127888 | USING POCKET DEVICE TO SURVEY, MONITOR, AND CONTROL PRODUCTION DATA IN REAL TIME - A system for real-time data surveillance in an oilfield operation includes a data collection system deployed at a well site for collecting oilfield data; an office-based computer system for storing and analyzing the oilfield data; a portable device, wherein the portable device includes at least one program for communicating with the office-based computer system, for surveying the oilfield data stored in the office-based computer system, and for causing the office-based computer system to perform a process implemented on the office-based computer system; and a communication system providing communication links among the data collection system, the office-based computer system, and the portable device. | 05-27-2010 |
| 20100116552 | METHODS AND APPARATUS FOR DOWNLOAD TRANSFER OF DRILL CUTTINGS - A drilling fluid delivery system for use in drilling boreholes with a drill bit, the system comprising: a primary flow circuit having a relatively high flow rate for transferring drilling fluid to and from the drill bit; a secondary flow circuit having a relatively low flow rate for transferring drilling fluid to and from the primary flow circuit; and a cuttings transfer system, such as a hydrocyclone or a rotating filter, between the primary and secondary flow circuits which, in use, receives fluid containing cuttings from the primary circuit, separates the fluid into a first stream that contains substantially no cuttings and a second stream containing cuttings, the first stream being returned to the primary flow circuit and the second stream being directed to the secondary flow circuit. | 05-13-2010 |
| 20090038392 | SYSTEM AND METHOD FOR CORRECTING ERRORS IN DEPTH FOR MEASURMENTS MADE WHILE DRILLING - A method and system is disclosed for automatically correcting for depth errors in measurements taken from a drill-string during the drilling phase of the construction of a hydrocarbon wellbore. The correction is based on a stress profile which in turn is based on the states of the drilling rig, drill string description length spec, borehole description trajectory, friction factor and weight on bit. | 02-12-2009 |
| 20080264630 | Method and Apparatus Suitable For Hole Cleaning During Operations - Apparatus for drilling operations in underground boreholes, comprises: a drilling assembly that can be located in a borehole and is moved along the borehole during the drilling operation; a flexible fluid supply line connected to and in fluid communication with the drilling assembly and extending from the drilling assembly to the surface when the drilling assembly is in the borehole; and an electric cable for providing electric power to the drilling assembly and extending from the drilling assembly to the surface when the drilling assembly is in the borehole; the fluid line and the electric cable are separate, and the electric cable being outside the fluid line. A method for conducting drilling operations using an apparatus as defined above, comprises operating the drilling assembly and directing fluid between the surface and the drilling assembly via the flexible fluid line. | 10-30-2008 |
