| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166177400 | CEMENTING DEVICE | 9 |
| 20080251249 | Safety cement plug launch system - A system and method for using a pneumatic line to automate the launch a cement plug from a cement head. The pneumatic line is in communication with the valves and retaining devices normally found on a typical cement head. The system ensures that the proper sequence of opening and closing valves in combination with the removal of the retaining device is used to safely launch a cement plug from the cement head. The pressure in the single pneumatic line may be varied to launch multiple cement plugs from a cement head. The system may be used to remotely launch a cement plug from a cement head. A wireless remote may be used to regulate the pressure in the pneumatic line to launch cement plugs from the cement head as desired. | 10-16-2008 |
| 20090151929 | Method and Device for Cementing a Well or a Pipe - This method consists in introducing within the well or pipe (C) a mandrel ( | 06-18-2009 |
| 20100044027 | ARRANGEMENT AND METHOD FOR SENDING AND/OR SEALING CEMENT AT A LINER HANGER - An apparatus for verifying cement arrival at a target location including a liner and a sensory structure radially outwardly disposed of the liner at a target arrival location of cement from a cementing operation; the sensory structure capable of sensing arrival of cement. A method for verifying completion of a cementing operation. A method for addressing micro annulus formation in a downhole cementing operation | 02-25-2010 |
| 20100243236 | NANOPARTICLE-DENSIFIED NEWTONIAN FLUIDS FOR USE AS CEMENTATION SPACER FLUIDS AND COMPLETION SPACER FLUIDS IN OIL AND GAS WELLS - The present invention is directed to methods for densifying cement spacer fluids for use in conjunction with drilling fluids and cement slurries for cementing operations involving oil and gas wells, wherein such densifying is done via the addition of nanoparticles to the spacer fluid. The present invention is also directed to analogous methods of densifying completion spacer fluids using nanoparticles, to Newtonian fluid compositions resulting from any such fluid densification, and to systems for implementing the use of such compositions in well cementing operations. | 09-30-2010 |
| 20110048697 | SONICALLY ACTIVATING SETTABLE COMPOSITIONS - The present disclosure is directed to a system and method for sonically activating cement slurries. In some implementations, a composition for treating a subterranean formation includes a settable composition and an activator. The activator is released in response to a sonic signal to initiate setting of the settable composition. | 03-03-2011 |
| 20140076538 | INNER STRING CEMENTING TOOL - A cementing adaptor includes a cylindrical carrier carrying a casing seal, a middle interval and a lower end separated by an annular rib, and a cylindrical swivel element disposed around and coaxially rotatable relative to the middle interval. A cylindrical connector has an upper end rotatably disposed around the carrier's lower end and non-rotatably connected to the swivel element, plus a lower end connectable to an inner tubular string. With the carrier's upper end connected to a casing running tool (CRT), this assembly can be disposed within a casing string with the casing seal engaging the casing and preventing fluid flow into the casing annulus below the seal when cement is pumped down the inner string, such that the cement is urged into the wellbore annulus. The swivel connection limits torque transfer that might otherwise overload the CRT or its connection to the cementing adaptor. | 03-20-2014 |
| 20140318764 | Pumice-Containing Remedial Compositions and Methods of Use - Systems for remedial cementing are provided that utilize pumice and various additives. One of the systems for remedial cementing embodiments comprises a lightweight settable composition comprising pumice, a calcium activator, and water, wherein the lightweight settable composition has a density of less than about 13.5 pounds per gallon; mixing equipment for mixing the lightweight settable composition; and pumping equipment for delivering the lightweight settable composition to a well bore. | 10-30-2014 |
| 20160024877 | Hydraulic Cementing Port Collar with Integral Swivel-Spline Feature - Disclosed embodiments relate to methods and devices for improved liner drill-in operations. Specifically, embodiments may provide the capability to selectively allow rotation of the liner, even once a packer has been set. Typical embodiments might couple a port sealing collar (that can selectively seal or open a port in the liner) to a selectively lockable swivel joint, for example. | 01-28-2016 |
| 20160115763 | TIP-GROUTING TOOLS INCLUDING DISTRIBUTION MATERIALS AND RELATED METHODS - Tip-grouting tools may include at least one inlet, an outlet in communication with the at least one inlet, and a distribution material defining a tortuous path between the at least one inlet and the outlet. The distribution material may be configured to distribute at least one of pressure, mass, and flow of grouting material across the outlet. | 04-28-2016 |
