US3566964A - Mud saver for drilling rigs - Google Patents

Mud saver for drilling rigs Download PDF

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Publication number
US3566964A
US3566964A US3566964DA US3566964A US 3566964 A US3566964 A US 3566964A US 3566964D A US3566964D A US 3566964DA US 3566964 A US3566964 A US 3566964A
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US
United States
Prior art keywords
sleeve
kelly
mud
lower end
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Charles S Livingston
Original Assignee
James B Ringgold
Charles S Livingston
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Publication date
Application filed by James B Ringgold, Charles S Livingston filed Critical James B Ringgold
Priority to US68169867A priority Critical
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Publication of US3566964A publication Critical patent/US3566964A/en
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Application status is Expired - Lifetime legal-status Critical

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10Valves arrangements in drilling fluid circulation systems
    • E21B21/106Valve arrangements outside the borehole, e.g. kelly valves
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods ; Cables; Casings; Tubings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7854In couplings for coaxial conduits, e.g., drill pipe check valves
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7879Resilient material valve
    • Y10T137/788Having expansible port
    • Y10T137/7882Having exit lip
    • Y10T137/7883With biasing means

Abstract

Apparatus is disclosed for attaching to the lower end of the kelly of a drilling rig to keep the drilling mud that is in the kelly from running out, when the kelly is disconnected from a drill string for any reason, e.g., to add another joint of pipe to the string. The mud saver includes a two-piece tubular housing for connection to the lower end of the kelly, between the kelly and the upper end of a string of drill pipe. An elongated sleeve of resilient elastomeric material is located in the housing with its upstream end clamped open between the two sections of the housing so all the mud pumped through the kelly into the drill pipe will pass through the sleeve. The downstream end of the sleeve is held closed by two springs located on opposite sides of the sleeve. These springs exert only enough force on the lower end of the sleeve to hold it closed against the hydrostatic pressure of the drilling mud above the sleeve when the kelly is disconnected from the drill string to thereby keep the mud in the kelly from flowing out its lower end. When the kelly and mud saver are reconnected in the drill string, drilling mud can be pumped down the kelly, through the sleeve, and into the drill string, and the pressure of the mud is more than sufficient to force the lower end of the sleeve open to permit the mud to flow through.

Description

United States Patent Charles S. Livingston [72] Inventor Houston, Tex.

[21] Appl. No. 681,698

[22] Filed Nov. 9, 1967 [45] Patented Mar. 2, 1971 [73] Assignee James B. Ringgold Houston, Tex. a fractional part interest [54] MUD SAVER FOR DRILLING RIGS 525, 525.1; 222/490; 166/225,224; l28/(Bag Digest); 175/218 [56] References Cited UNITED STATES PATENTS 2,278,780 4/1942 Harrington 175/218 2,328,948 9/1943 Bourke 137/525.l 3,331,385 7/1967 Taylor 175/218 Primary Examiner-Alan Cohan Attorneyl-1yer, Eickenroht, Thompson & Turner ABSTRACT: Apparatus is disclosed for attaching to the lower end of the kelly of a drilling rig to keep the drilling mud that is in the kelly from running out, when the kelly is disconnected from a drill string for any reason, e.g., to add another joint of pipe to the string. The mud saver includes a two-piece tubular housing for connection to the lower end of the kelly, between the kelly and the upper end of a string of drill pipe. An elongated sleeve of resilient elastomeric material is located in the housing with its upstream end clamped open between the two sections of the housing so all the mud pumped through the kelly into the drill pipe will pass through the sleeve. The downstream end of the sleeve is held closed by two springs located on opposite sides of the sleeve. These springs exert only enough force on the lower end of the sleeve to hold it closed against the hydrostatic pressure of the drilling mud above the sleeve when the kelly is disconnected from the drill string to thereby keep the mud in the kelly from flowing out its lower end. When the kelly and mud saver are reconnected in the drill string, drilling mud can be pumped down the kelly, through the sleeve, and into the drill string, and the pressure of the mud is more than sufficient to force the lower end of the sleeve open to permit the mud to flow through.

PATENTEU MAR 2 l97l sum 2 BF 2 CHARLES S. LIVINGSTON INVENTOR.

4 TTORNE Y5 MUD-SAVER FOR DRILLING RIGS This invention relates to apparatus for reducing the drilling is connected to the drill pipe through a kelly, which isrotated by a rotary table.

When another joint of pipe is tobe added to the drill: string or the pip'e'is to be pulled from the hole, thekelly is disconnected from I. the pipe string. When this occurs, any mud. remaining in the kelly willrun out and be wasted. Drilling-mud usually contains a mixture of chemicals, someof which are very expensive. In addition, when the: mud flows outof the kelly onto the floor of the drilling rig, thefloor becomes slick and unsafe for the workmen. Also, the mud is often strongly basic and harmful to workmen s skin-and clothing.

The amount of mud lost each timethekelly is unscrewed from or broken out of the string can be reduced by waiting as long as possibleafter the pumps are shut down and the kelly pulled back up into the derrick. For if the density of the mud in the drill pipe and the mud outside the drill pipe in the annulus is the same, the level of the. mud in the pipe'will drop to. that of the mud in the annulus. This requires time, however, and drilling rig time is very expensivexFurther, thedensityr of the mud in the kelly is often less than that of the mud in'the an.- nulus for various reasons such as the addition of. water to the mud before it is pumped back into the well bore. When this condition exists, the mud level in the drilling string, which includes the kelly and the pipe string, .will not fall to the levelof the mudinthe annulus.

Therefore, it isan object of this invention to providelapa paratus to keep the mud'in a kelly from running-out its lower end when the kelly is disconnected from a pipe string; '1

The apparatus includes tubular housing 12, which is made up of two sections, 12aand 122). Section 12a is connected to the lower end of kelly 10 and the lower. end of section 125 is connected to drill pipe 11. Thus, the housing may also serve ,as

a kelly saver sub since, when breaking the connection between the kelly and the drillstring, the connection between housing section 1211 and drillpipe 11 will be the one that is broken. An

additional kelly saver sub can be employed if desired between the lower end of housing section 12b and the drill pipe.

Located'in housing 12 is valveelement assembly 13. It includes elongated sleeve 14. The sleeve, preferably, is made of an elastomer, such as natural or. synthetic. rubber. Also, the sleeve may be reinforced, as by layer 15 of cotton duck. The sleeve is molded with a cylindrical opening in its upper end l4a. The opening tapers down to elongated slot 17 through lower end 14b of the sleeve. The wall thickness of the sleeve is substantially uniform throughout. Its exterior configuration is as shown in thedrawings; a cylindrical shape at its upperend and flat-sided across its lower end. Thiscan best beseen in FIGS. 4 and 5.

Means are provided to mount the sleeve in housing 12 with its upper end 14a held opensoall fluid pumped through the kelly and housing l2=into the drill string will pass through the sleeve. In the embodimentshown, mountingring 16 encircles upper end 14a. Preferably, the ring 'isbonded to the sleeve when the sleeve is molded. To improve the attachment between the elastomeric material of the sleeve and mounting ring 16, annular groove l8 is provided in the exterior of the ring. A plurality of spaced holes 20 extend through the mounting ring and intersect groove 18. This allows the elastomeric material of the sleeve to flow through openings20 during the It is another object of this invention to provide apparatus cal section, of the mud saver apparatusof this invention in stalled in a pipe string;

FIG. 2 is a sectional view taken along line 2-2 of FIG. 1; FIG. 3 is a view on an enlarged scaleof the portion of FIG. 1 within the circle 3;

FIG. 4 is a view, on an enlarged scale,-looking upstreamat the valve element assembly of the mud saving. apparatus of FIG. l;and

FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4.

The invention is shown in the. drawings and will be described as used with a conventional;kelly. The apparatus of the invention may have utility, however, where a power swivel is employed and a conventional square or hex-type kelly joint is not employed. Therefore, kelly, as referred to herein and in the claims, is intended to include the connection between a power swivel and the apparatus of this invention, which will be locatedtbetween the power. swivel and-the drill pipe. The mud saving apparatus of this invention, as shown in FIG. 1, is installed. between kelly 10. and pipe joint 11..Pipe

joint'll is the top joint in the pipestring (not shown) that extends downwardlyinto the well bore.

molding operation and fill. up both the openings and annular. groove 18 to provide a mechanical bond between the mount- .ing ring and the sleeve.

Mounting ring 16 and, consequently, sleeve 14 is fixed an held in position in housing 12 by housing sections 12a and 1212. These twosections are connected together by threaded connection 22. Before this connection is madeup, sleeve 14 is positionedin housingsection 12b with mounting ring 16 resting on upwardly facing annular shoulder 28 on housing section 12b. The two housing sections are screwed together until lower end 26 of section 12a engages the mounting ring suffi i ciently to firmly hold mounting ring 16 between the lower end of housing section 12a and upwardly facing shoulder 28. The;

Means are provided to resiliently urge the lower end of the sleeve closed with sufficientforce to hold it closed against the hydrostatic head of the fluid in the kelly, when the-kelly and. housing are disconnected from the drill pipe. In the embodiv ment shown, leaf springs 34 and 36 are provided for this .pur-

pose. As best seen in FIGS..2 and 4, the lower ends of the springsengage opposite sides of the slotted lower end of the sleeve and urge slot 17 closed. The'lower ends of the springs are trifurcated, each having three fingers to engage the lower slotted-end of the sleeve and spread the force exerted by the springs over substantially the length of the .slot. In the drawings, slbtl7is shown open slightly even though springs 34 and 36 are in position to hold it closed. This was done to make the locationand shape ofthe slot clear in the drawings.

- The upper ends of the springs are attached to mounting ring 16..The connection between the springs and the mounting ring is best seen in F I65. 3 and 5. Both springs are connected in the same manner, so only the connection between spring:36 and the mounting ring will be described in detail. The mounting; ringlis provided withverticalslot 40 into which the upper end. of spring ,36 extends. The. spring. has two vertically spaced mounting holes 37, which are in alignment with two vertically spaced tapped holes 38 in mounting ring 18. Mounting screws 42 extend through mounting holes 37 in the springs and threadedly engage the tapped holes in the mounting ring to attach the upper end of the spring to the mounting ring. The upper end of spring 34 is mounted in the same way in a slot in the mounting ring located diametrically opposite to slot 40.

The springs are designed to exert just enough force to hold the lower end of the sleeve closed against the hydrostatic pressure of the fluid that will exist in the kelly when the pumps are shut down preparatory to making a connection. Thus, the springs will exert little resistance to the forcing open of the lower end of the sleeve by the mud during normal circulating conditions. They will quickly close the lower end of the sleeve, however, as soon as circulation stops so that the kelly can be broken out of the drill string without delay and without the danger of losing any of the fluid still remaining in the kelly at the time circulation is stopped. 7

From the foregoing, it will be seen that this invention is one well adapted to attain all of the ends and objects hereinabove set forth, together with other advantages which are obvious and which are inherent to the apparatus and structure.

It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims.

As many possible embodiments may be made of the invention without departing from the scope thereof, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

lclaim:

1. In a drilling string through which drilling mud is pumped downwardly into a well bore including a plurality of pipe sections connected together with screw threads and a kelly connected to the upper end of the pipe string, the improvement in combination therewith of means for holding most of the drilling fluid in the kelly when the kelly is disconnected from the upper end of the pipe string, said means comprising a tubular housing connected in the drilling string between the bottom of the kelly and the top of the pipe sections and a valve element assembly located in the housing including an elongated sleeve of resilient elastomer material, means mounting the sleeve in the housing with its upper end held open so that drilling mud, as it is pumped downwardly through the kelly into the pipe sections below, will flow into the upper end of the sleeve, pass downwardly through the sleeve, and out the lower end of the sleeve, and means resiliently urging the lower end of the sleeve closed with sufficient force to hold the lower end closed against the hydrostatic head of the drilling mud in the kelly when the kelly and housing are disconnected from the pipe sections to keep the mud in the kelly from running out its lower end but which will allow the lower end of the sleeve to be forced open by pump pressure to permit normal circulation of mud to be maintained through the drilling string during drilling operations.

2.The mud saver apparatus of claim 1 in which the housing includes an upper and a lower section and the sleeve mounting means includes an annular member attached to the upper end of the sleeve to hold it open, said member being clamped between the upper and lower sections of the housing to hold the sleeve in place in the housing with its upper end held open by the annular member.

3. The mud saver apparatus of claim 2 in which the resilient means includes two elongated springs positioned on opposite sides of the sleeve, each spring having one end connected to the annular member and the other end engaging the lower end of the sleeve on the opposite side thereof from the other spring.

4. The mud saver apparatus of claim 3 in which the lower end of the sleeve is flat when closed.

5. The mud saver apparatus of claim 4 in which the springs are made of flat spring steel and have furcated lower ends to spread the force exerted by the springs on the lower end of the sleeve.

Claims (4)

  1. 2. The mud saver apparatus of claim 1 in which the housing includes an upper and a lower section and the sleeve mounting means includes an annular member attached to the upper end of the sleeve to hold it open, said member being clamped between the upper and lower sections of the housing to hold the sleeve in place in the housing with its upper end held open by the annular member.
  2. 3. The mud saver apparatus of claim 2 in which the resilient means includes two elongated springs positioned on opposite sides of the sleeve, each spring having one end connected to the annular member and the other end engaging the lower end of the sleeve on the opposite side thereof from the other spring.
  3. 4. The mud saver apparatus of claim 3 in which the lower end of the sleeve is flat when closed.
  4. 5. The mud saver apparatus of claim 4 in which the springs are made of flat spring steel and have furcated lower ends to spread the force exerted by the springs on the lower end of the sleeve.
US3566964D 1967-11-09 1967-11-09 Mud saver for drilling rigs Expired - Lifetime US3566964A (en)

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Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703213A (en) * 1970-10-21 1972-11-21 Baker Oil Tools Inc Mud saver apparatus
US3710942A (en) * 1967-06-02 1973-01-16 Pall Corp Valve for fluid lines and structures containing the same
US3967645A (en) * 1974-01-25 1976-07-06 Urocare Products, Inc. Check valve for urine collection device
US3997009A (en) * 1975-01-31 1976-12-14 Engineering Enterprises Inc. Well drilling apparatus
US4124150A (en) * 1974-02-25 1978-11-07 Moss Norman W Self-closing container outlet
EP0015726A1 (en) * 1979-03-02 1980-09-17 Roger Dale Crooks Method relating to the pumping of fluid along a tubular structure in a bore of a well and tubular component for use in such structure
GB2164374A (en) * 1984-09-14 1986-03-19 Hughes Tool Co Rotary swivel for drill strings
EP0347172A1 (en) * 1988-06-14 1989-12-20 Torus Equipment Inc Pressurised check valve
EP0387218A1 (en) * 1989-03-07 1990-09-12 Atlas Copco Construction and Mining Technique AB Device in impact machines
US4969513A (en) * 1989-09-22 1990-11-13 Kob, Inc. High pressure automatic kelly valve
US5165493A (en) * 1991-05-10 1992-11-24 Baugh Benton F Mud saver valve
US5205325A (en) * 1991-11-12 1993-04-27 Piper Oilfield Products, Inc. Flow control valve
US5253704A (en) * 1989-09-22 1993-10-19 Kob, Inc. High pressure automatic mud saver valve
US5320188A (en) * 1990-09-05 1994-06-14 England J Richard Underground mining system
US5324270A (en) * 1992-10-29 1994-06-28 General Surgical Innovations, Inc. Cannula with improved valve and skin seal
US7037303B2 (en) 2001-07-06 2006-05-02 Opticon Medical, Inc. Urinary flow control valve
US20090044949A1 (en) * 2007-08-13 2009-02-19 King James G Deformable ball seat
US20090044946A1 (en) * 2007-08-13 2009-02-19 Thomas Schasteen Ball seat having fluid activated ball support
US20090044948A1 (en) * 2007-08-13 2009-02-19 Avant Marcus A Ball seat having ball support member
US20090044955A1 (en) * 2007-08-13 2009-02-19 King James G Reusable ball seat having ball support member
US20100276025A1 (en) * 2009-05-01 2010-11-04 Rolls-Royce Plc Flow modulating device
US20100282338A1 (en) * 2009-05-07 2010-11-11 Baker Hughes Incorporated Selectively movable seat arrangement and method
US20100294515A1 (en) * 2009-05-22 2010-11-25 Baker Hughes Incorporated Selective plug and method
US20100294514A1 (en) * 2009-05-22 2010-11-25 Baker Hughes Incorporated Selective plug and method
US20100314126A1 (en) * 2009-06-10 2010-12-16 Baker Hughes Incorporated Seat apparatus and method
US20110011597A1 (en) * 2009-07-15 2011-01-20 Baker Hughes Incorporated Tubular valve system and method
US20110030968A1 (en) * 2009-08-10 2011-02-10 Baker Hughes Incorporated Tubular actuator, system and method
US20110030976A1 (en) * 2009-08-10 2011-02-10 Baker Hughes Incorporated Tubular actuator, system and method
US20110030975A1 (en) * 2009-08-04 2011-02-10 Baker Hughes Incorporated Tubular system with selectively engagable sleeves and method
US20110036592A1 (en) * 2009-08-13 2011-02-17 Baker Hughes Incorporated Tubular valving system and method
US20110061856A1 (en) * 2009-09-11 2011-03-17 Baker Hughes Incorporated Tubular seat and tubular actuating system
US20110067888A1 (en) * 2009-09-22 2011-03-24 Baker Hughes Incorporated Plug counter and method
US20110073320A1 (en) * 2009-09-25 2011-03-31 Baker Hughes Incorporated Tubular actuator and method
US20110073321A1 (en) * 2009-09-25 2011-03-31 Baker Hughes Incorporated Tubular actuator and method
US20110100647A1 (en) * 2009-10-29 2011-05-05 Baker Hughes Incorporated Tubular Actuator, System and Method
US20110187062A1 (en) * 2010-01-29 2011-08-04 Baker Hughes Incorporated Collet system
US8479808B2 (en) 2011-06-01 2013-07-09 Baker Hughes Incorporated Downhole tools having radially expandable seat member
US8668018B2 (en) 2011-03-10 2014-03-11 Baker Hughes Incorporated Selective dart system for actuating downhole tools and methods of using same
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US9004091B2 (en) 2011-12-08 2015-04-14 Baker Hughes Incorporated Shape-memory apparatuses for restricting fluid flow through a conduit and methods of using same
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Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710942A (en) * 1967-06-02 1973-01-16 Pall Corp Valve for fluid lines and structures containing the same
US3703213A (en) * 1970-10-21 1972-11-21 Baker Oil Tools Inc Mud saver apparatus
US3967645A (en) * 1974-01-25 1976-07-06 Urocare Products, Inc. Check valve for urine collection device
US4124150A (en) * 1974-02-25 1978-11-07 Moss Norman W Self-closing container outlet
US3997009A (en) * 1975-01-31 1976-12-14 Engineering Enterprises Inc. Well drilling apparatus
EP0015726A1 (en) * 1979-03-02 1980-09-17 Roger Dale Crooks Method relating to the pumping of fluid along a tubular structure in a bore of a well and tubular component for use in such structure
GB2164374A (en) * 1984-09-14 1986-03-19 Hughes Tool Co Rotary swivel for drill strings
EP0347172A1 (en) * 1988-06-14 1989-12-20 Torus Equipment Inc Pressurised check valve
EP0387218A1 (en) * 1989-03-07 1990-09-12 Atlas Copco Construction and Mining Technique AB Device in impact machines
US5253704A (en) * 1989-09-22 1993-10-19 Kob, Inc. High pressure automatic mud saver valve
US4969513A (en) * 1989-09-22 1990-11-13 Kob, Inc. High pressure automatic kelly valve
US5320188A (en) * 1990-09-05 1994-06-14 England J Richard Underground mining system
US5165493A (en) * 1991-05-10 1992-11-24 Baugh Benton F Mud saver valve
US5205325A (en) * 1991-11-12 1993-04-27 Piper Oilfield Products, Inc. Flow control valve
US5324270A (en) * 1992-10-29 1994-06-28 General Surgical Innovations, Inc. Cannula with improved valve and skin seal
US7037303B2 (en) 2001-07-06 2006-05-02 Opticon Medical, Inc. Urinary flow control valve
US20090044955A1 (en) * 2007-08-13 2009-02-19 King James G Reusable ball seat having ball support member
US20090044946A1 (en) * 2007-08-13 2009-02-19 Thomas Schasteen Ball seat having fluid activated ball support
US20090044948A1 (en) * 2007-08-13 2009-02-19 Avant Marcus A Ball seat having ball support member
US20090044949A1 (en) * 2007-08-13 2009-02-19 King James G Deformable ball seat
US7503392B2 (en) * 2007-08-13 2009-03-17 Baker Hughes Incorporated Deformable ball seat
US7628210B2 (en) 2007-08-13 2009-12-08 Baker Hughes Incorporated Ball seat having ball support member
US7637323B2 (en) 2007-08-13 2009-12-29 Baker Hughes Incorporated Ball seat having fluid activated ball support
US7673677B2 (en) 2007-08-13 2010-03-09 Baker Hughes Incorporated Reusable ball seat having ball support member
US20100276025A1 (en) * 2009-05-01 2010-11-04 Rolls-Royce Plc Flow modulating device
US8651142B2 (en) * 2009-05-01 2014-02-18 Rolls-Royce Plc Flow modulating device
US20100282338A1 (en) * 2009-05-07 2010-11-11 Baker Hughes Incorporated Selectively movable seat arrangement and method
US8261761B2 (en) 2009-05-07 2012-09-11 Baker Hughes Incorporated Selectively movable seat arrangement and method
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US20100294514A1 (en) * 2009-05-22 2010-11-25 Baker Hughes Incorporated Selective plug and method
US20100294515A1 (en) * 2009-05-22 2010-11-25 Baker Hughes Incorporated Selective plug and method
US9316089B2 (en) 2009-06-10 2016-04-19 Baker Hughes Incorporated Seat apparatus and method
US20100314126A1 (en) * 2009-06-10 2010-12-16 Baker Hughes Incorporated Seat apparatus and method
US20110011597A1 (en) * 2009-07-15 2011-01-20 Baker Hughes Incorporated Tubular valve system and method
US8272445B2 (en) 2009-07-15 2012-09-25 Baker Hughes Incorporated Tubular valve system and method
US8251154B2 (en) 2009-08-04 2012-08-28 Baker Hughes Incorporated Tubular system with selectively engagable sleeves and method
US20110030975A1 (en) * 2009-08-04 2011-02-10 Baker Hughes Incorporated Tubular system with selectively engagable sleeves and method
US8291988B2 (en) 2009-08-10 2012-10-23 Baker Hughes Incorporated Tubular actuator, system and method
US20110030968A1 (en) * 2009-08-10 2011-02-10 Baker Hughes Incorporated Tubular actuator, system and method
US20110030976A1 (en) * 2009-08-10 2011-02-10 Baker Hughes Incorporated Tubular actuator, system and method
US8397823B2 (en) 2009-08-10 2013-03-19 Baker Hughes Incorporated Tubular actuator, system and method
US8291980B2 (en) 2009-08-13 2012-10-23 Baker Hughes Incorporated Tubular valving system and method
US20110036592A1 (en) * 2009-08-13 2011-02-17 Baker Hughes Incorporated Tubular valving system and method
US20110061856A1 (en) * 2009-09-11 2011-03-17 Baker Hughes Incorporated Tubular seat and tubular actuating system
US8365829B2 (en) 2009-09-11 2013-02-05 Baker Hughes Incorporated Tubular seat and tubular actuating system
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US8479823B2 (en) 2009-09-22 2013-07-09 Baker Hughes Incorporated Plug counter and method
US20110067888A1 (en) * 2009-09-22 2011-03-24 Baker Hughes Incorporated Plug counter and method
US8316951B2 (en) 2009-09-25 2012-11-27 Baker Hughes Incorporated Tubular actuator and method
US20110073320A1 (en) * 2009-09-25 2011-03-31 Baker Hughes Incorporated Tubular actuator and method
US20110073321A1 (en) * 2009-09-25 2011-03-31 Baker Hughes Incorporated Tubular actuator and method
US8418769B2 (en) 2009-09-25 2013-04-16 Baker Hughes Incorporated Tubular actuator and method
US20110100647A1 (en) * 2009-10-29 2011-05-05 Baker Hughes Incorporated Tubular Actuator, System and Method
US8646531B2 (en) 2009-10-29 2014-02-11 Baker Hughes Incorporated Tubular actuator, system and method
US20110187062A1 (en) * 2010-01-29 2011-08-04 Baker Hughes Incorporated Collet system
US8668013B2 (en) 2010-08-24 2014-03-11 Baker Hughes Incorporated Plug counter, fracing system and method
US8789600B2 (en) 2010-08-24 2014-07-29 Baker Hughes Incorporated Fracing system and method
US9188235B2 (en) 2010-08-24 2015-11-17 Baker Hughes Incorporated Plug counter, fracing system and method
US8668018B2 (en) 2011-03-10 2014-03-11 Baker Hughes Incorporated Selective dart system for actuating downhole tools and methods of using same
US8668006B2 (en) 2011-04-13 2014-03-11 Baker Hughes Incorporated Ball seat having ball support member
US8479808B2 (en) 2011-06-01 2013-07-09 Baker Hughes Incorporated Downhole tools having radially expandable seat member
US9145758B2 (en) 2011-06-09 2015-09-29 Baker Hughes Incorporated Sleeved ball seat
US9004091B2 (en) 2011-12-08 2015-04-14 Baker Hughes Incorporated Shape-memory apparatuses for restricting fluid flow through a conduit and methods of using same
USRE46793E1 (en) 2012-02-03 2018-04-17 Baker Hughes, A Ge Company, Llc Wiper plug elements and methods of stimulating a wellbore environment
US9016388B2 (en) 2012-02-03 2015-04-28 Baker Hughes Incorporated Wiper plug elements and methods of stimulating a wellbore environment

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