Matches 1 - 50 out of 115 1 2 3 >


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US20140034311 METHODS AND APPARATUS FOR WELLBORE CONSTRUCTION AND COMPLETION  
The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance...
US20150107838 Consolidating Spacer Fluids and Methods of Use  
Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus.
US20080196896 Methods and apparatus for fiber-based diversion  
Methods and apparatus are described for fiber-based fluid diversion in hydrocarbon-containing wells. One method embodiment of the invention comprises treating a first zone in a well; conveying a...
US20080066655 Low density cements for use in cementing operations  
A cement mix which is suitable for cementing in subterranean formations to provide zonal isolation or for blocking or plugging an abandoned pipeline or back filling a mine shaft, tunnel or...
US20130220608 MODIFIED PARTICULATE WEIGHTING AGENTS AND METHODS OF USING THE SAME  
In subterranean operations, additives used in treatment fluids such as drilling and cementing fluids include weighting agents; a method includes the steps of providing a treatment fluid for use in...
US20080289825 Downhole Mixing Of Encapsulated Plug Components For Primary Cementing A Well  
A two part encapsulated cementing system is mixed downhole in a method of primary cementing a well. Using this two part system, one of the components is first placed in the annulus of the well....
US20120255733 HYPER-FINE CEMENT  
A process for sealing or strengthening porous molded articles, rock or porous informations. The process comprises using hyper-fine cement having a particle size D50 of <1 μm as at least one of a...
US20130248182 MODULAR MANIFOLD OF A WELLSITE FLUID SYSTEM AND METHOD OF USING SAME  
A mobile manifold assembly of a fluid system for providing fluid to a wellsite during well construction. The fluid system includes auxiliary components including at least one fluid source, mixer...
US20160237767 SOLIDS IN BOREHOLD FLUIDS  
A fluid used in a borehole containing suspended solid objects made by an additive manufacturing process. An additive process of solidifying a liquid composition at a succession of selected...
US20100218950 BIOCIDE FOR WELL STIMULATION AND TREATMENT FLUIDS  
A well stimulation and or treatment fluid that includes water, other additives, and a biocide consisting of 3,5-dimethyl-1,3,5-thiadiazinane-2-thione in an amount effective to inhibit bacterial...
US20100012320 METHODS AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS  
The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place...
US20130233546 Degradable Fluid Sealing Compositions Having an Adjustable Degradation Rate and Methods for Use Thereof  
When performing subterranean treatment operations, it can be desirable to temporarily divert or block fluid flow by forming a degradable fluid seal. Methods for forming a degradable fluid seal can...
US20080314591 SINGLE TRIP WELL ABANDONMENT WITH DUAL PERMANENT PACKERS AND PERFORATING GUN  
A method of abandoning a well includes the steps of: assembling a tool string including a perforating gun interconnected between first and second packer assemblies; conveying the tool string into...
US20080011482 Systems for Reverse-Circulation Cementing in Subterranean Formations  
Methods and systems for reverse-circulation cementing in subterranean formations are provided. An example of a method is a method of cementing casing in a subterranean well bore, comprising...
US20140318780 DEGRADABLE COMPONENT SYSTEM AND METHODOLOGY  
A technique protects against premature actuation of a tool, such as a downhole well tool. The technique utilizes a degradable material positioned along a hydraulic actuation passage and/or between...
US20170044864 METHOD OF SEALING WELLS BY SQUEEZING SEALANT  
A method for sealing a well includes: placing an obstruction in a bore of an inner tubular string disposed in a wellbore; forming an opening through a wall of the inner tubular string above the...
US20080066654 Low density cements for use in cementing operations  
A cement mix suitable for blocking or plugging an abandoned pipeline or back filling a mine shaft, tunnel or excavations contains (i) Portland cement or a mixture of at least two components...
US20060201711 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells  
The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place...
US20100212901 DOWNHOLE VIBRATION APPARATUS AND METHODS  
A method of extending an earthen bore comprises the steps of rotating a drill bit at the end of a tubular while vibrating the tubular. The method results in reduced friction to tubular advance...
US20070158068 Methods of Cementing in Subterranean Formations Involving Reduced Pumping Pressure  
A method of initiating fluid circulation in a well bore with a casing inner diameter and an annulus is provided. The method includes increasing the casing inner diameter fluid pressure at the top...
US20140076560 WELLBORE CEMENTING TOOL HAVING ONE WAY FLOW  
A stage tool for reverse annular cementing a wellbore, comprising: a main body including a tubular wall with an outer surface and a longitudinal bore extending from a top end to a bottom end; a...
US20160137552 REACTION RESIN MORTAR, MULTI-COMPONENT MORTAR SYSTEM AND THE USE THEREOF  
A reaction resin mortar comprising a resin mixture is described, that contains at least one radically polymerizable compound, at least one reactive diluent and at least one inhibitor, whereby the...
US20080135248 METHOD AND APPARATUS FOR COMPLETING AND FLUID TREATING A WELLBORE  
A wellbore fluid treatment apparatus capable of being actuated by a sealing device. The apparatus includes a casing including a bore and a casing port opened through the wall of the casing. The...
US20130312964 KOBE SUB, WELLBORE TUBING STRING APPARATUS AND METHOD  
To address concerns of kobe plug cap portions being inadvertently removed, for example, by abutment with strings or tools passing thereby, a shielding structure may be employed to protect the cap...
US20100230102 Methods of Extending the Shelf Life of and Revitalizing Lightweight Beads for Use in Cement Compositions  
In an embodiment, the shelf life of lightweight beads to be used in a cement composition may be extended by combining the lightweight beads with a fluid such as water to inhibit the lightweight...
US20090101344 Water Dissolvable Released Material Used as Inflow Control Device  
Methods and devices for controlling fluid flow into a wellbore tubular includes an in-flow control device, an element co-acting with the in-flow control device, and a disintegrating medium at...
US20080251253 Method of cementing an off bottom liner  
A method of cementing an off bottom liner including the steps of establishing a first flow blockage in the liner at a location down-hole of a cementing valve located in the side wall of the liner,...
US20150177198 Systems and Methods for Cement Evaluation Calibration  
Devices and methods for calibrating acoustic cement evaluation data using an acoustic calibration device installed behind a casing in a wellbore are provided. Such an acoustic calibration...
US20130319672 Methods of Using Wellbore Servicing Compositions  
A method of servicing a wellbore comprising preparing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious...
US20060144591 Method and apparatus for repair of wells utilizing meltable repair materials and exothermic reactants as heating agents  
A method and apparatus are described for creating a fluid seal in a subterranean well structure having a fluid seal defect. The method comprises introducing a meltable repair material proximate a...
US20100319918 CEMENT ADDITIVE FOR THE ENHANCED TREATMENT OF OIL AND GAS WELLS AND RELATED METHODS OF USE  
Cement mixtures and methods are disclosed for enhancing fluid loss prevention in oil and gas wells comprising an electrolyte, a polymer and a cross linking agent.
US20150315875 Red Mud Solids in Spacer Fluids  
Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include using a spacer fluid comprising red mud solids and water to displace a drilling fluid in a wellbore.
US20140151043 STABILIZED FLUIDS IN WELL TREATMENT  
Using stabilized fluids in multistage well treatment is disclosed. Also disclosed are methods, fluids, equipment and/or systems for treating a subterranean formation penetrated by a wellbore,...
US20120073814 EXPANSION AGAINST CEMENT FOR ZONAL ISOLATION  
A method for improving zonal isolation between formations along a borehole, comprises a) providing a pipe in the borehole, wherein at least a portion of the pipe lies between the formations, b)...
US20070068703 METHOD FOR DRILLING AND CEMENTING A WELL  
A method for drilling and cementing a borehole to access at least a portion of a formation of interest, comprising: drilling a borehole using a drill string including an external packer and a...
US20150083422 WELLBORE ENCASEMENT  
A method of encasing a wellbore is provided comprising the application of 3D printing technology to apply a series of layers of lining material to the interior surface of a wellbore. The layers...
US20130299165 METHODS AND SYSTEMS FOR LONG-TERM MONITORING OF A WELL SYSTEM DURING ABANDONMENT  
For long-term abandonment and monitoring of well systems, a series of barriers are formed within a formation and within a casing of a well to prevent materials from leaking from the well....
US20160201440 FRACTURE INITIATION WITH AUXILIARY NOTCHES  
Improved notching techniques are described for transverse fracture initiation from the wellbore (cased or open). One or more auxiliary notches are formed that are sealed from borehole pressure...
US20130062061 METHODS AND SYSTEMS FOR ZONAL ISOLATION IN WELLS  
According to the invention, a method for isolating a zone inside a well is provided. The method may include providing a catch screen at a first location in the well and providing a fluid flow to...
US20130206410 EXPANDABLE STRUCTURES FOR WELLBORE DEPLOYMENT  
The subject disclosure relates to expandable structures that seal and block cross-sections of a wellbore. In an embodiment, the apparatus comprises a plurality of structure plates and at least one...
US20150337624 STAGE TOOL FOR WELLBORE CEMENTING  
A stage tool for cementing a wellbore annulus, comprising: a main body including a tubular wall with an outer surface and an inner bore extending from a top end to a bottom end; a cementing port...
US20120132424 METHOD OF DRILLING FROM A SHAFT FOR UNDERGROUND RECOVERY OF HYDROCARBONS  
The present invention discloses a selection process for installing underground workspace in or near a hydrocarbon deposit that is an appropriate workspace from which to drill, operate and service...
US20080190616 Apparatus for Radially Expanding and Plastically Deforming a Tubular Member  
An apparatus for radially expanding and plastically deforming a tubular member.
US20160040494 METHOD AND SYSTEM FOR SURFACE ENHANCEMENT OF TUBULARS  
The invention discloses a method and system for surface enhancement of a pipe. The method includes the steps of: introducing the pipe in a wellbore; and applying a ribbed pattern to the inner...
US20140174740 METHOD OF INTERSECTING A FIRST WELL BORE BY A SECOND WELL BORE  
In some general aspects, methods for intersecting a first, cased well bore include drilling a second well bore that has a distal end proximal to the first, cased well bore to be intersected,...
US20130284436 METHOD OF PROVIDING AN ANNULAR SEAL, AND WELLBORE SYSTEM  
A method of providing an annular seal around a tubular in a wellbore penetrating a subsurface formation, the method comprising providing a tubular in the wellbore, wherein an annular space (18) is...
US20130175034 DRILL HOLE PLUGS  
A grout plug 10 for plugging a drill hole 20 in a mine. The plug 10 comprises an elongate sleeve 12 of porous material adapted to be received in a drill hole 20 and a volume of dry grout material...
US20130161006 DOWNHOLE SEALING USING SETTABLE MATERIAL IN AN ELASTIC MEMBRANE  
A rubber pocket is described that is suitable for use on tubing, such as a packer-type seal, on casing, such as a cement-type seal, or on liners. The rubber pocket may contain cement particles,...
US20110088901 Method for Plugging Wells  
A method of plugging wells wherein cementitious materials (like Portland cement) are formed into pellets that can be dumped or dropped into a well that is filled with an aqueous solution. The...
US20150226029 GROUT DELIVERY  
A grout delivery system for delivery of grout to a downhole location within a borehole. The grout comprising a settable mixture of first and second flowable components. The grout delivery system...

Matches 1 - 50 out of 115 1 2 3 >