| Patent Number |
Title Of Patent |
Date Issued |
| 7237610 |
Degradable particulates as friction reducers for the flow of solid particulates and associated m |
July 3, 2007 |
| Particulate compositions that comprise macro-particulates, and degradable particulates in an amount sufficient to reduce friction between the macro-particulates, the degradable particulates having a mean particle diameter of at least about 20 times smaller than the mean particle diam |
| 7237609 |
Methods for producing fluids from acidized and consolidated portions of subterranean formations |
July 3, 2007 |
| A method of stimulating and stabilizing an area of a subterranean formation comprising placing an acid fluid into an area of a subterranean formation and allowing the acid to at least partially dissolve a portion of the area of the subterranean formation; placing a consolidation fluid |
| 7234544 |
Drill tool shaft-to-housing locking device |
June 26, 2007 |
| In a tool having an inner member supported within an outer member, wherein the tool defines a longitudinal axis, a device is provided for preventing relative rotation of the inner member and the outer member. The device is comprised of a locking mechanism and a locking actuator. The lock |
| 7234529 |
Flow switchable check valve and method |
June 26, 2007 |
| According to one embodiment of the invention, a flow switchable check valve includes a housing, a guide member having a bore extending therethrough disposed within the housing, and a poppet having a head and a stem. The head has an upstream surface engaged with a seating surface on t |
| 7234527 |
System and method for fail-safe disconnect from a subsea well |
June 26, 2007 |
| A system and method for controllably separating a conduit into an upper portion and a lower portion. The system includes a first valve in the upper portion of the conduit above a point of separation, and a second valve in the lower portion of the conduit below the point of separation. |
| 7234526 |
Method of forming a sealed wellbore intersection |
June 26, 2007 |
| An expanding wellbore junction system, apparatus and methods are provided for forming a sealed wellbore intersection in a subterranean well. In one described method, an expandable wellbore junction is expanded within an under-reamed cavity in a wellbore. Intersecting tubular legs of the |
| 7234522 |
Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbor |
June 26, 2007 |
| A float system for use in cementing a casing in a wellbore. The wellbore is drilled with a drill bit attached to the casing. The drill bit is removed after the wellbore is drilled. The float system is lowered into the casing after the drill bit is removed. The float system includes a |
| 7234519 |
Flexible piezoelectric for downhole sensing, actuation and health monitoring |
June 26, 2007 |
| Thin flexible piezoelectric transducers are bonded to or imbedded into oilfield tubular members or structural members. The transducers may be used to telemeter data as acoustic waves through the members. By proper spacing of transducers and phasing of driving signals, the transmitted |
| 7234517 |
System and method for sensing load on a downhole tool |
June 26, 2007 |
| A system and method for determining load on a downhole tool according to which one or more sensors are embedded in one or more components of the tool or in a material on one or more of the components. The sensors are adapted to sense load on the components. |
| 7232793 |
Water-based polymers for use as friction reducers in aqueous treatment fluids |
June 19, 2007 |
| Provided are methods comprising providing an aqueous polymer dispersion comprising water, an anionic salt, a water-based friction reducing polymer, a polyol, an anionic surfactant, and a nonionic surfactant; mixing the aqueous polymer dispersion with additional water to form an aqueo |
| 7231987 |
Deep set packer with hydrostatic setting actuator |
June 19, 2007 |
| A packer and actuator therefor configured for use in relatively high hydrostatic pressure environments. In a described embodiment, a packer for use in a subterranean well includes an actuator for setting the packer. The actuator includes multiple pistons circumferentially spaced apar |
| 7230552 |
Temperature compensation apparatus, systems, and methods |
June 12, 2007 |
| In some embodiments, apparatus and systems, as well as methods, may include providing an analog temperature output responsive to a combination signal comprising a combination of an analog compensation output and a reference signal, and converting the analog temperature output to a di |
| 7229952 |
Additive packages for removing oil from solid materials recovered from a well bore |
June 12, 2007 |
| An additive package for removing oil from solid material recovered from a well bore, e.g., drill cuttings and produced sand, is provided. The additive package includes an aqueous acidic solution containing a polymer substituted with an amino group, a halogenating agent, and optionally on |
| 7229492 |
Cement compositions comprising improved lost circulation materials and methods of use in subterr |
June 12, 2007 |
| Cement compositions that include improved lost circulation materials are provided. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene, and/or polypropylene. Optionally, the cement compositions also may in |
| 7229207 |
Method for gel hydration system |
June 12, 2007 |
| A hydration apparatus for use with a hydration tank. The hydration apparatus disperses incoming gel into existing gel in the hydration tank to increase the hydration time of the incoming gel. The hydration apparatus includes flow conduits communicated with gel inlets in the hydration |
| 7228908 |
Hydrocarbon sweep into horizontal transverse fractured wells |
June 12, 2007 |
| The present invention is directed to a method of increasing hydrocarbon production in an existing well in a hydrocarbon reservoir. The method includes the steps of forming a substantially horizontal transverse fractured wellbore that intersects the existing well and injecting a fluid |
| 7228904 |
Compositions and methods for improving fracture conductivity in a subterranean well |
June 12, 2007 |
| The invention relates to enhancing the conductivity of fractures in a subterranean formation so as to enhance fluid flow therethrough. In one embodiment, the present invention provides a method comprising: providing a proppant matrix composition, the proppant matrix composition comprisin |
| 7228900 |
System and method for determining downhole conditions |
June 12, 2007 |
| The present invention provides a system for determining downhole conditions including a time domain reflectometer (172) that is operable to generate a transmission signal and receive a reflected signal. A tubular (192) is positioned downhole in a downhole medium (214, 216, 218, 220, |
| 7228898 |
Gravel pack completion with fluid loss control fiber optic wet connect |
June 12, 2007 |
| A gravel pack completion with fluid loss control and fiber optic wet connect. In a described embodiment, a system for completing a subterranean well includes multiple assemblies installed in a wellbore. Each assembly has a fiber optic line. The fiber optic lines are operatively conne |
| 7225879 |
Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
June 5, 2007 |
| An assembly and methods for constructing a MONOWELL includes a monodiameter casing disposed in a monodiameter wellbore having diametric efficiency with a monobore production delivery system disposed within the monodiameter casing. An assembly for constructing a monodiameter wellbore |
| 7225875 |
Multi-layered wellbore junction |
June 5, 2007 |
| A multi-layered wellbore junction. In a described embodiment, a method of forming an expanded chamber in a subterranean well includes the steps of: positioning multiple chamber sidewall layers in the well; and expanding the layers in the well to form the expanded chamber. |
| 7225874 |
Methods and compositions for reducing the viscosity of treatment fluids used in subterranean ope |
June 5, 2007 |
| Methods and compositions for reducing the viscosity of subterranean treatment fluids that comprise a gelling agent utilizing breakers that comprise hydroquinone and/or a derivative thereof. In one embodiment, the present invention provides a method comprising: providing a treatment f |
| 7225871 |
Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
June 5, 2007 |
| A system for cementing a casing in an open wellbore having no surface casing, wherein an annulus is defined between the casing and the wellbore, the system having: an annular plug around the casing at the mouth of the wellbore; a cement composition pump fluidly connected to the annul |
| 7225869 |
Methods of isolating hydrajet stimulated zones |
June 5, 2007 |
| The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean formation of interest. Next, the wellbore may or may not be cased depending upon a number of |
| 7225078 |
Method and system for predicting production of a well |
May 29, 2007 |
| Production of a well is predicted by associating log profiles for wells in a reservoir to production indicators for wells in the reservoir. A log for the well is matched to a corresponding log profile. The log profiles may each be generated by clustering logs for wells in the reservoir. |
| 7222672 |
Wellbore fluids containing additives for removing a filter cake and methods of using the same |
May 29, 2007 |
| Wellbore servicing fluids and methods of using the same to service a wellbore in a subterranean formation are provided. A filter cake in the wellbore is contacted with the gravel packing fluid, which comprises an oil-soluble additive capable of removing the filter cake. The additive |
| 7222549 |
Systems and methods for determining the location of a pig in a pipeline |
May 29, 2007 |
| The location of a pig in a conduit, e.g., an underwater pipeline, may be determined by measuring an amount of a fluid displaced by the pig from the conduit and calculating the location of the pig in the conduit based on that amount of fluid. In particular, the amount of the fluid displac |
| 7220708 |
Drilling fluid component |
May 22, 2007 |
| A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternative embodiment, a meth |
| 7219748 |
Downhole signal source |
May 22, 2007 |
| A signaling apparatus comprises a magnet and a shield moveable relative to the magnet. The shield is moveable relative to the magnet between a first position in which the magnet is relatively exposed and a second position in which the magnet is relatively shielded. The apparatus can incl |
| 7219747 |
Providing a local response to a local condition in an oil well |
May 22, 2007 |
| A method and apparatus for providing a local response to a local condition in an oil well are disclosed. A sensor is provided to detect a local condition in a drill string. A controllable element is provided to modulate energy in the drill string. A controller is coupled to the senso |
| 7219739 |
Heave compensation system for hydraulic workover |
May 22, 2007 |
| The present invention relates generally to offshore drilling and production operations, and, more particularly, to marine drilling workover/intervention tensioning and compensating devices and methodologies. A heave compensated hydraulic workover device and/or system is provided comp |
| 7219733 |
Zeolite compositions for lowering maximum cementing temperature |
May 22, 2007 |
| Zeolite compositions having a low maximum setting temperature for use in permafrost and waterwell applications are provided. |
| 7219732 |
Methods of sequentially injecting different sealant compositions into a wellbore to improve zona |
May 22, 2007 |
| Methods of sealing a wellbore include sequentially displacing a first sealant composition and a second sealant composition different from the first sealant composition into the wellbore, followed by allowing the first and second sealant compositions to set. In an embodiment, the first |
| 7216738 |
Acoustic stimulation method with axial driver actuating moment arms on tines |
May 15, 2007 |
| A method for generating acoustic waves, the method having the steps of: extending a tine from a support structure so that a proximal end of the tine is attached to the support structure and a distal end of the tine is uninhibited; positioning an oscillator so as to be supported by the |
| 7216718 |
Multi-layer deformable composite construction for use in a subterranean well |
May 15, 2007 |
| A multi-layer deformable composite construction. In a described embodiment, a method of expanding a structure in a wellbore includes the steps of: positioning the structure in an unexpanded configuration in the wellbore, the structure including a wall made up of multiple layers; expa |
| 7216710 |
Thiol/aldehyde corrosion inhibitors |
May 15, 2007 |
| Methods of inhibiting corrosion comprising providing a corrosive environment; adding a corrosion inhibitor comprising a reaction product of a thiol compound and an aldehyde compound. Methods of acidizing a near well bore region of a subterranean formation comprising isolating a zone |
| 7216707 |
Cement compositions with improved fluid loss characteristics and methods of cementing using such |
May 15, 2007 |
| The present invention provides a method of cementing in a subterranean formation that includes providing a cement composition that includes water, cement, and a fluid loss control additive that includes a water-soluble hydrophobically modified polymer or a hydrophilically modified wa |
| 7216706 |
Annular isolators for tubulars in wellbores |
May 15, 2007 |
| The present disclosure addresses apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. A first deployable annular isolator is carried on tubing as it is positioned in a borehole. An annular isolator forming material is placed in |
| 7216705 |
Methods of placing treatment chemicals |
May 15, 2007 |
| Among the methods provided are methods of treating a subterranean formation comprising placing a solid treatment chemical and a tacky polymer onto a solid substrate to create a coated solid substrate; placing the coated solid substrate into a portion of a subterranean formation; and, |
| 7216704 |
Methods and compositions for breaking viscosified fluids |
May 15, 2007 |
| Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. A method presented herein is a method of reducing the viscosity of a viscosified treatment fluid that comprises providing a viscosified treatment fluid that comprises a basic |
| 7216533 |
Methods for using a formation tester |
May 15, 2007 |
| A method of testing a downhole formation using a formation tester on a drill string. The formation tester is disposed downhole on a drill string and a formation test is performed by forming a seal between a formation probe assembly and the formation. A drawdown piston then creates a volu |
| 7213681 |
Acoustic stimulation tool with axial driver actuating moment arms on tines |
May 8, 2007 |
| An apparatus for generating acoustic waves, the apparatus having: a support structure; two tines extending from the support structure so that proximal ends of the two tines are attached to the support structure so that distal ends of the two tines are positioned with standoffs relative |
| 7213653 |
Deep set safety valve |
May 8, 2007 |
| Apparatus and methods are provided for actuation of downhole tools. In one example, a deep set safety valve uses a magnetic coupling which permits a portion of the safety valve at control line pressure to be isolated from tubing string internal pressure, without requiring the use of a dy |
| 7213652 |
Sealed branch wellbore transition joint |
May 8, 2007 |
| A sealed branch wellbore transition joint. In a described embodiment, a completion system for a well having a branch wellbore extending outwardly from a window in a parent wellbore includes a tubular string having a portion positioned within the window, and a sealing material on the |
| 7213650 |
System and method for scale removal in oil and gas recovery operations |
May 8, 2007 |
| A system and method for stimulating a formation surrounding a well and vibrating a device for supporting a gravel pack in the well, according to which a build up of scale on the device is sensed and a corresponding signal is output. A driver is provided for driving a transducer coupled |
| 7213647 |
Methods of sealing expandable pipe in well bores and sealing compositions |
May 8, 2007 |
| The present invention provides methods and compressible foamed sealing compositions for sealing expandable pipe in well bores. The compressible sealant compositions for sealing expandable pipe are basically comprised of a hydraulic cement, a rubber latex, a rubber latex stabilizer, a gas |
| 7213645 |
Methods of improving well bore pressure containment integrity |
May 8, 2007 |
| Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeable, deformable, extreme |
| 7213643 |
Expanded liner system and method |
May 8, 2007 |
| A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. A gauge section 34 is secured to the bit 16 has a uniform diameter bearing surface along an axial length of at least 60% of the bit diameter. The a |
| 7212132 |
Downhole signal source |
May 1, 2007 |
| A signaling apparatus comprises a magnet and a shield moveable relative to the magnet. The shield is moveable relative to the magnet between a first position in which the magnet is relatively exposed and a second position in which the magnet is relatively shielded. The apparatus can incl |
| 7212075 |
Downhole clock having temperature compensation |
May 1, 2007 |
| A downhole crystal-based clock that is substantially insensitive to the factors that may cause frequency deviation as a result of downhole temperature. The clock may include a plurality of crystals, where a first crystal may be more stable, with respect to temperature, than a second |
