Patent application number | Description | Published |
20090095474 | System and Method for Fracturing While Drilling - A method of fracturing a formation while drilling a wellbore includes the steps of: providing a bottomhole assembly (“BHA”) having a reamer positioned above a pilot hole assembly; connecting the BHA to a drill string; actuating the BHA to drill a first wellbore section with the reamer and to drill a pilot hole with the pilot hole assembly; hydraulically sealing the pilot hole from the first wellbore section; and fracturing the formation proximate the pilot hole. | 04-16-2009 |
20090107724 | METHOD AND APPARATUS FOR CONTINUOUS FORMATION SAMPLING AND ANALYSIS DURING WELLBORE DRILLING - A wellbore formation sample acquisition and analysis instrument includes an annular drill bit configured to couple to one end of a drill string. The bit defines a passageway extending from a cutting face thereof to an exterior surface at a longitudinally spaced apart position from the cutting face. The instrument includes at least one sensor configured to measure a selected parameter of a sample of subsurface formation urged into the passageway by action of the cutting face against subsurface formations. Samples of the subsurface formations are ejected from the exterior surface end of the passageway by the samples entering the cutting face end thereof. | 04-30-2009 |
20100018770 | System and Method for Drilling a Borehole - A technique facilitates drilling in a wide variety of applications and environments. The technique utilizes a coiled tubing bottom hole assembly constructed with a sensor system that provides the ability to steer a borehole within a reservoir. An orienter is connected to a top end of the bottom hole assembly to provide rotational movement of the bottom hole assembly. The orienter can be designed to provide continuous and bidirectional rotational movement of the coiled tubing bottom hole assembly. A telemetry system is provided to enable high data rate telemetry between the orienter and a surface location as well as communication between the bottom hole assembly and the orienter. | 01-28-2010 |
20110120725 | WELLBORE INSTRUMENTS USING MAGNETIC MOTION CONVERTERS - A directional drilling system, a drilling hammer and a fluid flow telemetry modulator use a plurality of magnets arranged to convert rotational motion into reciprocating linear motion. Various types of motor can provide rotational motion to a part of the magnets and various linkages and other devices can cause steering or operation of a modulator valve. A torsional drilling hammer uses a plurality of magnets arranged to convert reciprocating linear motion into reciprocating rotational motion. A motor and linkage drives the linearly moving part of the magnets, and the rotating part provides torsional impact be striking the linearly moving part of the magnets. | 05-26-2011 |
20110308862 | DRILLING SYSTEM - A drilling system comprising a rotatable drill pipe | 12-22-2011 |
20120111561 | Systems and Methods for Detecting Phases in Multiphase Borehole Fluids - A method detects at least one phase of multiphase borehole fluids within a borehole. The method has a step of providing coiled tubing connected to a top end of a bottom hole assembly having a sensor configured to detect a property associated with the multiphase borehole fluids. Further, the method has a step of positioning the sensor adjacent to a first phase of the multiphase borehole fluids by rotating the bottom hole assembly or a portion of the bottom hole assembly. Moreover, the method has the steps of detecting a first measurement with the sensor as the sensor rotates and determining a fractional amount of at least one phase of the multiphase borehole fluids. | 05-10-2012 |
20130032412 | DRILL BIT ASSEMBLY HAVING ALIGNED FEATURES - A drill bit assembly has a bit head and a pin body. The bit head comprises a cutting end, an opposite connecting end with an engagement section, and a feature facing the connecting end. The pin body comprises a tubular body with an axial bore therethrough, a connecting end with an engagement section and a feature facing the connecting end. The drill bit assembly is manufactured by positioning the pin body connecting end with the bit head connecting end such that the pin body and bit head engagement sections overlap with a gap therebetween, and the pin body and bit head features are aligned; injecting a thermoplastic or other connecting material in liquid form between the bit head and pin body engagement sections and into the gap; and solidifying the thermoplastic or other connecting material such that the bit head and pin body are mechanically coupled together at their connecting ends and their features are securely aligned. | 02-07-2013 |
20130160998 | Lost Circulation Materials and Methods of Using Same - Compositions of lost circulation materials are provided that are useful for identifying the location of fluid loss in a wellbore. The compositions include additives which enhance a property of the composition such that they can be detected by an LWD or MWD tool capable of measuring the property when the composition is deployed in a region of loss, and can be distinguished by the LWD or MWD tool from the formation and mud fluid. Methods are also provided for using the composition to detect the location of fluid loss and for controlling the loss of fluid from the wellbore. The methods involve deploying the compositions in loss regions by adding the compositions to drilling mud, and measuring a property of the compositions using an LWD or MWD tool. | 06-27-2013 |
20130206401 | ACTUATION SYSTEM AND METHOD FOR A DOWNHOLE TOOL - An actuation system and method for a downhole tool. The downhole tool includes a body having an axial bore extending at least partially therethrough and a chamber disposed radially-outward from the bore. A valve is disposed within the bore and adapted to move between a first position which prevents fluid flow from the bore to the chamber through a port and a second position which permits the fluid flow from the bore to the chamber through the port. A motor, disposed within the bore, is adapted to move the valve between the first and second positions. An actuatable component of the downhole tool, e.g., a cutter block of an underreamer downhole tool, is movably coupled to the body and adapted to move from a non-actuated state to an actuated state in response to fluid flow through the port into the chamber. | 08-15-2013 |
20140083177 | System For Logging While Running Casing - A well logging while casing instrument system includes a segment of pipe having at least one window therein corresponding to selected well logging instrument sensors. The segment of pipe has at least one of a float collar, a reaming shoe or a casing drill bit attached to one end thereof. At least one well logging instrument is disposed inside the segment of pipe. The at least one well logging instrument includes at least one sensor disposed at longitudinal position corresponding to the at least one window. The at least one well logging instrument includes a fishing neck at one longitudinal end thereof to enable retrieval of the at least one well logging instrument from the interior of the segment of pipe. | 03-27-2014 |
20140166366 | SINGLE-TRIP LATERAL CORING SYSTEMS AND METHODS - A coring system may be used to create a lateral section or borehole off a wellbore, and obtain a core sample therefrom. The coring system may include a coring assembly connected to a deflector assembly to enable a single-trip coring operation. The coring assembly may include a coring bit and an outer barrel for extracting a core sample. A deflector of the deflector assembly may direct the coring bit to drill a lateral section in the borehole and extract a core sample therefrom. The coring assembly and deflector may include mating surfaces to collectively retrieve the deflector assembly and coring assembly in a single trip. A collar of the coring assembly may engage against a stop surface of a shoulder or sleeve of the deflector assembly. By pulling upwardly, the engaged collar may release the anchored deflector. | 06-19-2014 |
20140166367 | CORING BIT TO WHIPSTOCK SYSTEMS AND METHODS - A coring system and method enable a single-trip operation for setting a deflector assembly, deploying a coring assembly and obtaining a core sample from a borehole drilled in a wellbore. The coring assembly has a barrel with a bore for collecting the core sample and has a coring bit coupled to an end portion of the barrel. The deflector system is arranged to deflect the coring bit into a side wall of the wellbore to drill the borehole therein. The deflector system includes a deflector and a collar. The collar, coupled to the deflector, restricts upward movement of the coring assembly relative to the deflector assembly. The collar may also be used as a retrieval device to engage the coring assembly and permit removal of the coring assembly and the deflector assembly as well as the core sample after the core sample has been obtained. | 06-19-2014 |