US20130020096A1 - Method and Apparatus for Catching and Retrieving Objects in a Well - Google Patents

Method and Apparatus for Catching and Retrieving Objects in a Well Download PDF

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Publication number
US20130020096A1
US20130020096A1 US13/553,915 US201213553915A US2013020096A1 US 20130020096 A1 US20130020096 A1 US 20130020096A1 US 201213553915 A US201213553915 A US 201213553915A US 2013020096 A1 US2013020096 A1 US 2013020096A1
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United States
Prior art keywords
assembly
magnet
bell nipple
objects
wellbore
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.)
Abandoned
Application number
US13/553,915
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English (en)
Inventor
Mark W. DeRouen, SR.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
5D IP LLC
Original Assignee
Derouen Sr Mark W
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Derouen Sr Mark W filed Critical Derouen Sr Mark W
Priority to US13/553,915 priority Critical patent/US20130020096A1/en
Publication of US20130020096A1 publication Critical patent/US20130020096A1/en
Priority to US13/873,718 priority patent/US9394755B1/en
Assigned to 5D I.P., L.L.C. reassignment 5D I.P., L.L.C. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEROUEN, MARK W., SR.
Priority to US15/209,217 priority patent/US9903183B2/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/26—Magnetic separation acting directly on the substance being separated with free falling material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/288—Magnetic plugs and dipsticks disposed at the outer circumference of a recipient
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/20—Magnetic separation whereby the particles to be separated are in solid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/28—Parts being easily removable for cleaning purposes

Definitions

  • the present invention pertains to a method and apparatus for preventing unwanted objects from entering subterranean portions of a wellbore. More particularly, the present invention pertains to the use of magnetic field(s) to catch falling objects within a wellbore. More particularly still, the present invention pertains to an apparatus for generating magnetic field(s) between a rig floor of a drilling or completion rig and a wellhead, such as in or near a bell nipple assembly, in order to prevent unwanted objects from falling into a wellbore below said wellhead.
  • a bell nipple is a large diameter length of pipe utilized on most drilling and completion rigs.
  • a bell nipple is installed at or near the top of a rig's blowout preventers and extends to the well opening at the rig floor; the bell nipple typically serves as a “funnel” to guide drilling tools into and out of the upper opening of a well.
  • Most conventional bell nipples also serve as conduits for drilling muds and/or other fluids present within a well.
  • most conventional bell nipples are typically configured with a side outlet to permit fluid to flow from a well to a rig's surface fluid treating equipment such as shale shakers and mud tanks.
  • Relatively large objects can generally be retrieved from a wellbore using specially designed “fishing tools.” Such fishing tools are lowered into a wellbore and connect to a dropped object within the wellbore. Thereafter, the fishing tools and the connected object can both be safely retrieved from the wellbore. In many instances, the retrieval process for such large objects can be relatively simple because the size of the objects enables such objects to be grasped and lifted out of the wellbore.
  • small pieces of metal present in a wellbore can prevent packers and other completion tools from sealing against a casing wall.
  • such small metal objects can destroy very expensive downhole equipment such as Polycrystalline Diamond Compact (PDC) bits.
  • PDC Polycrystalline Diamond Compact
  • Such small objects can also be very difficult to retrieve from a wellbore, as they are often too small to be grasped using conventional fishing tools. This is especially true for small metal objects, and particularly small metal objects that have an irregular shape or small pieces that can be broken up during the retrieval process.
  • many drilling rigs typically have many small metal objects (such as, for example, wrenches, chain, bolts, tong dies and nuts) at or near the rig floor. Such objects, which are in relatively close proximity to the upper opening of a well, are at risk of falling into a wellbore.
  • Such apparatus and method should prevent dropped objects from falling further into a wellbore, and should hold such objects for ultimate retrieval and removal from a wellbore.
  • Such apparatus can be disposed at virtually any location(s) between a rig floor of a drilling or completion rig, and a wellhead assembly of a well. In many cases, said apparatus can be situated at or in proximity with a bell nipple assembly.
  • the present invention comprises an apparatus for generating a magnetic field that can be attached to, or placed in the vicinity of, or made an integral part of a conventional bell nipple.
  • the magnetic field is used to catch falling metal objects from passing beyond the bell nipple and entering the subterranean portions of a wellbore.
  • the apparatus of the present invention comprises the following primary components, or combinations thereof, that cooperatively work together to catch falling metallic objects in a wellbore, thereby saving rig time and enhancing overall safety:
  • a magnet assembly of the present invention comprises at least one magnet and is disposed on, around, or as an integral part of the bell nipple.
  • the magnet(s) of the magnet assembly of the present invention can be sized based on the internal diameter of a bell nipple, as well as the ability to catch certain representative objects that have been dropped into or fished out of wellbores in the past.
  • the magnet assembly of the present invention can be mounted at or near the bell nipple using a movable assembly, such that said magnets can be selectively moved or positioned away from the bell nipple to prevent magnetic interference with logging tools or other equipment that may be sensitive to magnetic fields.
  • a diverter assembly can be mounted above the magnet assembly, and can act as a barrier to slow the velocity of a falling object passing through a bell nipple. Although said diverter assembly may only “break” the fall of an object, even a momentary reduction of velocity can greatly improve the ability of the magnet assembly to catch larger and/or heavier objects.
  • the diverter assembly of the present invention also acts as a wiper to clean the outer surface of pipe or other equipment passing through the bell nipple.
  • multiple different pipe sizes are used in the same drill string, which is a practice known as a tapered drill string.
  • Several diverter assemblies of the present invention can be stacked to match each of the different pipe sizes that are being used in a tapered string. Use of such multiple diverter assemblies eliminates the need to work over an open wellbore to change out conventional pipe wipers, thereby resulting in time savings and a decrease in the chance that objects will be inadvertently dropped into a wellbore.
  • a full closing gate that can extend across the central bore of the bell nipple (that is, the path into the well) is beneficially positioned under a magnet apparatus.
  • the gate serves as a secondary closure of the well bore when the rig has pipe out of the hole.
  • the full-closing gate assembly of the present invention which can be selectively operated by a driller or other automated system, can be closed when pipe is not in the well in order to stop falling objects.
  • Said gate assembly of the present invention saves time and expense associated with actuating the BOP assembly and, further, eliminates the need for such unnecessary actuation.
  • FIG. 1 depicts a side perspective view of a magnet sleeve assembly of the present invention in a closed position.
  • FIG. 2 depicts a side perspective view of a magnet sleeve assembly of the present invention of the present invention in an open position.
  • FIG. 3 depicts a side sectional view of a conventional bell nipple assembly and related equipment installed on a drilling rig.
  • FIG. 4 depicts a side sectional view of a bell nipple assembly equipped with a magnet sleeve assembly of the present invention.
  • FIG. 5 depicts a side sectional view of a bell nipple assembly equipped with a magnet sleeve assembly and diverter assembly of the present invention.
  • FIG. 6 depicts a side sectional view of a bell nipple assembly equipped with an alternative embodiment magnet sleeve assembly and diverter assembly of the present invention.
  • FIG. 1 depicts a side perspective view of a magnet sleeve assembly 10 of the present invention in a closed position.
  • said magnet sleeve assembly 10 of the present invention is installed in close proximity to the upper opening of a wellbore (such as, for example, near a bell nipple assembly).
  • Said magnet sleeve assembly 10 generates a magnetic field that is beneficially directed toward the wellbore to catch falling metal objects and prevent such objects from entering the subterranean portions of said wellbore.
  • magnet sleeve assembly 10 comprises first semi-cylindrical member 11 and second semi-cylindrical member 12 joined by at least one hinge assembly comprising hinge body members 13 and hinge pin 14 .
  • magnet sleeve assembly 10 has a substantially cylindrical shape.
  • magnet sleeve assembly 10 further comprises opposing connection plate members 15 and 16 .
  • Fasteners such as threaded bolts 17 can be disposed through aligned holes in said opposing connection members 15 and 16 to secure first semi-cylindrical member 11 and second semi-cylindrical member 12 together.
  • Optional handles 19 can be provided on the sides of magnet sleeve assembly 10 .
  • magnets 20 are disposed on first and second members 11 and 12 .
  • said magnets 20 comprise are typically rare earth or ceramic magnets exhibiting desired magnetic characteristics (that is, creates their own persistent magnetic field).
  • FIG. 2 depicts a side perspective view of magnet sleeve assembly 10 of the present invention in a substantially open position.
  • magnet sleeve assembly 10 comprises first semi-cylindrical member 11 and second semi-cylindrical member 12 moveably joined by hinges having hinge body members 13 and hinge pins 14 .
  • Opposing connection members 15 and 16 have aligned holes 18 for receiving bolts 17 which, in turn, are used to secure first semi-cylindrical member 11 and second semi-cylindrical member 12 together.
  • optional handles/lifting eyes 19 are provided on the sides of magnet sleeve assembly 10 .
  • FIG. 3 depicts a side sectional view of a conventional bell nipple assembly 120 and related equipment installed on a drilling rig.
  • Bell nipple assembly 120 comprises a length of pipe 123 having a central through-bore 124 , as well as a side outlet port 121 and outlet line 122 .
  • bell nipple assembly 120 is connected at its upper end to rotary assembly 130 , and at its lower end to blow-out preventer (“BOP”) assembly 110 .
  • Rotary assembly 130 is mounted at rig floor 140 having upper surface 141 , and defining an upper opening 131 .
  • BOP assembly 110 is connected to wellhead 100 which is mounted to the upper portion of a wellbore (not shown in FIG. 3 ) extending into the earth's crust.
  • BOP assembly 110 generally comprises ram assembly 111 and annular preventer assembly 112 .
  • Bell nipple assembly 120 acts as a “funnel” to guide drilling tools into and out of the upper opening of a wellbore.
  • chain segment 150 that is depicted falling in central through-bore 124 of bell nipple assembly 120 . If falling objects such as chain segment 150 are not stopped before entering the subterranean portion of a wellbore, such objects can prevent downhole equipment from functioning properly and can often negatively impede the drilling process as detailed herein.
  • FIG. 4 depicts a side sectional view of the same basic well components as depicted in FIG. 3 , except that magnet sleeve assembly 10 is installed on central body member 123 of bell nipple assembly 120 . Additionally, optional gate valve assembly 30 is installed between bell nipple assembly 120 and BOP assembly 110 . In the preferred embodiment, magnet sleeve assembly 10 of the present invention can be sized based on the dimensions of bell nipple assembly 120 .
  • magnet sleeve assembly 10 is depicted in FIG. 4 as being secured in a fixed or stationary position, it is to be observed that magnet sleeve assembly 10 of the present invention can be mounted at or near bell nipple assembly 120 using an assembly that selectively moves the magnets of said magnet sleeve assembly 10 away from said bell nipple assembly when desired. For example, it may be beneficial to selectively move said magnets away from bell nipple assembly 120 to prevent magnetic interference with logging tools or other equipment that may be sensitive to magnetic fields, or when circulating large concentrations of metallic debris in a rig mud system (such as, for example, when milling up stuck metal objects in a well). Such assembly for repositioning said magnets can be manually operated, or remotely actuated using pneumatic or hydraulic power.
  • gate assembly 30 can be closed to extend substantially across central through-bore 124 of bell nipple assembly 120 .
  • Said gate assembly 30 permits a secondary means for quickly closing access to the upper surface of the well bore when pipe is out of the well.
  • said gate assembly 30 can be manually operated, in the preferred embodiment it is remotely actuated using pneumatic or hydraulic power.
  • Said gate assembly 30 of the present invention can be actuated when pipe is not in the well as an additional means to prevent falling objects from entering subterranean portions of a wellbore, especially when metal objects have fallen into said wellbore (and must be retrieved), or when the present invention must be removed or checked.
  • Said gate assembly 30 of the present invention saves time and expense associated with actuating the BOP assembly 110 just to “catch” falling objects and, further, eliminates the need for such unnecessary actuation which creates undesirable wear and tear on said BOP assembly 110 .
  • the primary function of BOP assembly 110 is to hold back fluid pressure from below, often in an emergency or unexpected situation. Because such unnecessary actuation of said BOP assembly 110 can negatively affect subsequent functionality and reliability of said BOP assembly 110 , the inclusion of gate assembly 30 (particularly in conjunction with the other components of the present invention) provides a significant added element of safety to rig operations.
  • magnet sleeve assembly 10 of the present invention create magnetic field 21 .
  • said magnetic field is generally focused or directed toward central through-bore 124 of bell nipple assembly 120 .
  • metal objects dropped into the upper opening 131 of a well such as chain segments 150
  • said magnetic field 21 is caught in said magnetic field 21 ; accordingly, such metal objects do not pass bell nipple assembly 120 , and do not enter the subterranean portions of a well bore.
  • Such objects (such as, for example, chain segments 150 ) can be easily retrieved from bell nipple assembly 120 .
  • FIG. 5 depicts a side sectional view of a bell nipple assembly 120 equipped with magnet sleeve assembly 10 , as well as optional diverter assembly 40 and optional gate assembly 30 of the present invention.
  • diverter assembly 40 is mounted above 10 magnet assembly, and has a plurality of substantially flexible fingers 41 that extend into central through-bore 124 of bell nipple assembly 120 . Said fingers 41 act as an impediment to slow the velocity of a falling objects passing through central through-bore 124 of bell nipple assembly 120 .
  • said diverter assembly 40 may only “break” the fall of an object, even a momentary reduction of velocity can greatly improve the ability of magnet assembly 10 to catch larger and/or heavier objects.
  • diverter assembly 40 of the present invention also acts as a wiper to clean the external surfaces of pipe or other equipment passing through bell nipple assembly 120 .
  • multiple different sizes of pipe are used in the same drill string, which is a practice known as a tapered drill string.
  • multiple diverter assemblies 40 of the present invention can be stacked to match each of the different pipe sizes that are being used in a tapered string. Use of such multiple diverter assemblies eliminates the need to work over an open wellbore to change out conventional pipe wipers, thereby resulting in time savings and a decrease in the chance that objects will be inadvertently dropped into a wellbore.
  • FIG. 6 depicts a side sectional view of a bell nipple assembly equipped with an alternative embodiment magnet sleeve assembly and diverter assembly of the present invention.
  • Said magnet assembly can be beneficially positioned proximate to a bell nipple, and situated above or below the side outlet of said bell nipple.
  • FIG. 5 depicts magnet assembly 10 , diverter assembly 40 and gate assembly 30 mounted above side outlet port 121 of bell nipple assembly 120 . Because any liquid in central through-bore 124 of bell nipple assembly 120 drains through said side outlet port 121 , the liquid level within said through-bore 124 does not extend above said outlet port 121 .
  • magnetic field 21 generated by the magnet assembly 10 extends into a “dry” portion of bell nipple assembly 120 (that is, the portion of central through-bore 124 of bell nipple assembly 120 that does not contain drilling mud or other liquid).
  • magnet sleeve assembly 10 can be installed proximate to bell nipple assembly 120 , and positioned below said outlet port 121 of bell nipple assembly 120 .
  • magnetic field 21 generated by magnet assembly 10 extends into a “wet” portion of bell nipple assembly 120 (that is, a portion of bell nipple central through-bore 124 that contains drilling mud or other liquid).
  • any pipe or other equipment can first be retrieved from said well. Thereafter, for installations equipped with gate assembly 30 , said gate assembly 30 can be shifted to a closed position. Thereafter, bell nipple 120 can be removed, or the internal surfaces of said bell nipple assembly 120 can otherwise be accessed, in order to retrieve the dropped or fallen object. With gate assembly 30 in a closed position, any object that may fall out of magnetic field 21 will be stopped at said gate assembly 30 (thereby permitting fast and easy retrieval), and will not fall into BOP assembly 110 or subterranean portions of a well situated therebelow. As noted above, said gate assembly 30 saves time and expense by eliminating the need for actuating BOP assembly 110 simply to block entry into subterranean portions of a wellbore.
  • the magnet assembly of the present invention can be disposed at virtually any position along the distance that exists between: (1) a rig floor of a drilling or completion rig; and (2) a wellhead of a well being serviced by said drilling or completion rig.
  • said magnet assembly of the present invention and related method could be incorporated directly within a BOP assembly or wellhead assembly.
  • the simplest and most effective manner of implementing the present invention will frequently involve positioning the magnet assembly of the present invention proximate to a bell nipple assembly as described herein.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Earth Drilling (AREA)
US13/553,915 2011-07-21 2012-07-20 Method and Apparatus for Catching and Retrieving Objects in a Well Abandoned US20130020096A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/553,915 US20130020096A1 (en) 2011-07-21 2012-07-20 Method and Apparatus for Catching and Retrieving Objects in a Well
US13/873,718 US9394755B1 (en) 2011-07-21 2013-04-30 Method and apparatus for catching and retrieving objects in a well
US15/209,217 US9903183B2 (en) 2011-07-21 2016-07-13 Method and apparatus for catching and retrieving objects in a well

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161510229P 2011-07-21 2011-07-21
US201261610757P 2012-03-14 2012-03-14
US13/553,915 US20130020096A1 (en) 2011-07-21 2012-07-20 Method and Apparatus for Catching and Retrieving Objects in a Well

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/873,718 Continuation-In-Part US9394755B1 (en) 2011-07-21 2013-04-30 Method and apparatus for catching and retrieving objects in a well
US13/873,718 Continuation US9394755B1 (en) 2011-07-21 2013-04-30 Method and apparatus for catching and retrieving objects in a well

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US20130020096A1 true US20130020096A1 (en) 2013-01-24

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US13/553,915 Abandoned US20130020096A1 (en) 2011-07-21 2012-07-20 Method and Apparatus for Catching and Retrieving Objects in a Well
US13/873,718 Active 2034-02-04 US9394755B1 (en) 2011-07-21 2013-04-30 Method and apparatus for catching and retrieving objects in a well
US15/209,217 Active 2032-09-01 US9903183B2 (en) 2011-07-21 2016-07-13 Method and apparatus for catching and retrieving objects in a well

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US13/873,718 Active 2034-02-04 US9394755B1 (en) 2011-07-21 2013-04-30 Method and apparatus for catching and retrieving objects in a well
US15/209,217 Active 2032-09-01 US9903183B2 (en) 2011-07-21 2016-07-13 Method and apparatus for catching and retrieving objects in a well

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WO (1) WO2013013136A1 (fr)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
US20130206388A1 (en) * 2010-10-12 2013-08-15 National Oilwell Varco Norway As Capture basket system for an underdeck pipehandling machine
US9458702B1 (en) * 2014-06-20 2016-10-04 5D Oilfield Magnetics IP Pressure Systems, LLC Method and apparatus for catching and retrieving objects in a riser assembly
US11154798B2 (en) * 2018-08-29 2021-10-26 Maeda Shell Service Co., Ltd. Magnetic filtration apparatus
WO2023275379A1 (fr) * 2021-07-02 2023-01-05 Mutec Markgraf Gmbh Procédé et installation pour séparer un composé magnétique phosphoré d'une matière sèche par séparation magnétique à sec
US20230228169A1 (en) * 2022-01-14 2023-07-20 Saudi Arabian Oil Company Mud saver and metal collector bell nipple
EP3478421B1 (fr) * 2016-06-30 2023-08-09 Adey Holdings (2008) Limited Filtre magnétique destiné à un système de chauffage central
US20230358118A1 (en) * 2022-05-06 2023-11-09 Saudi Arabian Oil Company Wellbore protector ram

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CN108412460A (zh) * 2018-03-22 2018-08-17 中国石油集团川庆钻探工程有限公司长庆钻井总公司 一种井口防落物的装置
EP3770144B1 (fr) 2019-07-24 2023-09-06 OQ Chemicals GmbH Procédé d'hydroformylation continue à substitution de catalyseur
US11441381B2 (en) * 2019-08-27 2022-09-13 Hydril USA Distribution LLC Blowout preventer system and method
US11933130B2 (en) 2022-02-22 2024-03-19 Saudi Arabian Oil Company Installing a shooting nipple on a rotating control device

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US2684166A (en) * 1951-09-10 1954-07-20 Paul A Medearis Power elevator for oil wells
US5101896A (en) * 1987-10-19 1992-04-07 Thompson J P Pipe wiper and washer system
US20090255671A1 (en) * 2008-04-09 2009-10-15 Baker Hughes Incorporated Methods and apparatus for collecting a downhole sample

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130206388A1 (en) * 2010-10-12 2013-08-15 National Oilwell Varco Norway As Capture basket system for an underdeck pipehandling machine
US9145759B2 (en) * 2010-10-12 2015-09-29 National Oilwell Varco Norway As Capture basket system for an underdeck pipehandling machine
US9458702B1 (en) * 2014-06-20 2016-10-04 5D Oilfield Magnetics IP Pressure Systems, LLC Method and apparatus for catching and retrieving objects in a riser assembly
EP3478421B1 (fr) * 2016-06-30 2023-08-09 Adey Holdings (2008) Limited Filtre magnétique destiné à un système de chauffage central
US11154798B2 (en) * 2018-08-29 2021-10-26 Maeda Shell Service Co., Ltd. Magnetic filtration apparatus
WO2023275379A1 (fr) * 2021-07-02 2023-01-05 Mutec Markgraf Gmbh Procédé et installation pour séparer un composé magnétique phosphoré d'une matière sèche par séparation magnétique à sec
US20230228169A1 (en) * 2022-01-14 2023-07-20 Saudi Arabian Oil Company Mud saver and metal collector bell nipple
US11808113B2 (en) * 2022-01-14 2023-11-07 Saudi Arabian Oil Company Mud saver and metal collector bell nipple
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US9903183B2 (en) 2018-02-27
US20160319638A1 (en) 2016-11-03
WO2013013136A1 (fr) 2013-01-24
US9394755B1 (en) 2016-07-19

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