| SPECIALISED PETROLEUM SERVICES GROUP LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120055681 | DOWNHOLE VALVE TOOL AND METHOD OF USE - A downhole isolation valve for testing the integrity of a tubular within a wellbore includes a tubular body ( | 03-08-2012 |
| 20110308786 | DIVERTER CUP ASSEMBLY - A downhole cleaning tool for cleaning a casing is provided with a diverter cup assembly ( | 12-22-2011 |
| 20110226491 | DOWNHOLE TOOL OF HIGH PRESSURE OPERATING CYCLE CAPABILITY - A pressurization tool comprises a body for connection to a tubular by box, and pin, and providing for flow of fluid by way of a throughbore of varying cross-section to form chambers. A lower chamber accommodates a spring that contacts a shoulder providing a reaction surface for compression of the spring under applied force. The chamber merges into intermediate chamber that accommodates a movable index sleeve that cooperates with an index pin inserted through the wall of the tool body. Associated with the upper part of the index sleeve is a valve seat assembly, positioned to abut the index sleeve and moveable therewith, said valve seat assembly being configured to receive a plug or ball, and in one unpressurised configuration, is located in a wider chamber that permits fluid flow around the assembly. | 09-22-2011 |
| 20110203063 | WORK STRING MOUNTED CLEANING TOOL AND ASSEMBLY METHOD - Work string-mounted cleaning tool and a method of assembling such tools using a quick release for the cleaning element. Oblong pad element has a curved upper surface with slots to receive work surface segments. Opposite edge has a part-circular recess with part-circular peripheral lip around an upper edge of the recess. A retainer fastening component in the recess has a core with socket adapted to receive a driving tool. The retainer is sized to permit it to rotate when mounted within the recess. Roll pins are provided for use in locating the fastener component in predetermined rotational configurations in relation to the recess. Shear pin is provided to inhibit unintended rotation of the fastener component, and to lock the retainer for normal use of the cleaning tool. Shearing of the shear pin permits disassembly of the tool. | 08-25-2011 |
| 20110186355 | DRILL STRING MOUNTED ROTATABLE TOOL AND CLEANING METHOD - A method of drilling and cleaning a wellbore whilst rotating the drill string after full drilling depth is reached without running the drill string out the bore to install a clean up work string is disclosed wherein a drill string having a drill bit at one end includes at least one near bit selectively activatable cleaning tool ( | 08-04-2011 |
| 20110168404 | DOWNHOLE TOOL - A cleaning tool ( | 07-14-2011 |
| 20100252281 | DOWNHOLE FLOW CONTROL TOOL AND METHOD - A downhole flow control tool | 10-07-2010 |
| 20100132954 | BALL SEAT ASSEMBLY AND METHOD OF CONTROLLING FLUID FLOW THROUGH A HOLLOW BODY - A method of controlling fluid flow through a hollow body, uses a ball seat assembly ( | 06-03-2010 |
| 20100126718 | CEMENT EVALUATION METHOD AND TOOL - The invention relates to a cement evaluation method and tool. In particular, the invention relates to a method of producing a wellbore cement bond log for evaluating a condition of cement in cased or lined portions of wellbores, and to a corresponding cement bond logging assembly. In an embodiment of the invention, a method of producing a wellbore cement bond log is disclosed which comprises the steps of running a cement evaluation tool ( | 05-27-2010 |
| 20100065125 | VALVE SEAT ASSEMBLY, DOWNHOLE TOOL AND METHODS - A valve assembly ( | 03-18-2010 |
| 20090255665 | DUAL FUNCTION CLEANING TOOL - A cleaning tool for cleaning a liner top in a well bore. The tool includes cleaning elements, typically scrapers, which are arranged eccentrically to an axial bore through the tool. The elements are biased outwardly to contact an inner surface of a polished bore receptacle (PBR) at a position with a curvature to match the PBR and to present leading edges of each element when positioned at a surface of a neighbouring casing. The tool may further provide a top dress mill and act as a packer actuator sub. This provides a tool which performs a number of functions on a single trip in a well bore. | 10-15-2009 |
| 20090218100 | WELLBORE CLEANING - The invention relates to a wellbore cleaning assembly, wellbore cleaning apparatus comprising a wellbore cleaning assembly, and to a method of cleaning a wellbore. In an embodiment of the invention, a wellbore cleaning assembly ( | 09-03-2009 |
| 20090126933 | DEVICE AND METHOD FOR RETRIEVING DEBRIS FROM A WELL | 05-21-2009 |
| 20090025927 | WELLBORE CLEANING METHOD & APPARATUS - This invention relates to well cleaning methods and apparatus. In particular, this invention relates to a method of drilling and cleaning a wellbore. | 01-29-2009 |
| 20080196881 | Wellbore Cleaning Tool and Method - There is disclosed a cleaning tool for use in cleaning ferrous material from a wellbore, a cleaning assembly comprising a plurality of such wellbore cleaning tools, and a method of cleaning ferrous materials from a wellbore. | 08-21-2008 |
