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BR-112023008080-B1 - Well bottom debris removal apparatus, method for assembling a well bottom debris removal apparatus and well system.

BR112023008080B1BR 112023008080 B1BR112023008080 B1BR 112023008080B1BR-112023008080-B1

Abstract

WELLBOTTOM DEBRIS REMOVAL APPARATUS INCLUDING A MODULAR KNOCKOUT CHAMBER. This disclosure provides a wellbottom debris removal apparatus, a method for assembling a wellbottom debris removal apparatus, and a well system including the same. The wellbottom debris removal apparatus, in one aspect, includes a crossover sub, the crossover sub having a first sub end with one of a sub pin thread or sub box thread, a second sub end with the other of a sub box thread or sub pin thread, and a fluid passage extending from the first sub end to the second sub end. The wellbottom debris removal apparatus, according to this aspect, further includes a debris removal tube having a first tube end and a second tube end, the first tube end being removablely engaged with the crossover sub between the first sub end and the second end.

Inventors

  • TODD J. ROY
  • PETER REID MAHER

Assignees

  • HALLIBURTON ENERGY SERVICES, INC

Dates

Publication Date
20260310
Application Date
20201217
Priority Date
20201217

Claims (13)

  1. 1. A wellbore removal apparatus (200), characterized in that it comprises: a crossover sub (210), the crossover sub (210) having a first sub end (220) with one of a sub tube fillet (225) or sub sleeve fillet (235), a second sub end (230) with the other of a sub sleeve fillet (235) or sub tube fillet (225) and a fluid passage (240) extending from the first sub end (220) to the second sub end (230); and a debris removal tube (250) having a first tube end (254) and a second tube end (258), the first tube end (254) being removablely engaged with the crossover sub (210) between the first sub end (220) and the second sub end (230); and two or more centralizers (265) extending radially outward from the debris removal tube (250), the two or more centralizers (265) operable to move between a radially retracted state and a radially extended state.
  2. 2. Well bottom debris removal apparatus (200), according to claim 1, characterized in that a diameter (de) of the two or more centralizers (265) in the radially extended state is at least 110 percent of a diameter (dr) of the two or more centralizers (265) in the radially retracted state, or optionally in which the two or more centralizers (265) are two or more arched springs.
  3. 3. Well bottom debris removal apparatus (200), according to claim 1, characterized in that a diameter (de) of the two or more centralizers (265) in the radially extended state is at least 150 percent of a diameter (dr) of the two or more centralizers (265) in the radially retracted state.
  4. 4. Bottomhole debris removal apparatus (200), according to claim 1, characterized in that the first sub end (220) has a pipe thread and the second sub end (230) has a sleeve thread (235) or, optionally, wherein the debris removal pipe (250) is threadedly engaged with the crossing sub (210).
  5. 5. Well bottom debris removal apparatus (200), according to claim 1, characterized in that the fluid passage (240) has a first section (320) near the first sub end (220) with a first diameter (d1) and a second section (330) near the second sub end (230) with a second larger diameter (d2), a difference between the first diameter (d1) and the second larger diameter (d2) forming a cross-sub collection chamber (340) (210).
  6. 6. Bottomhole debris removal apparatus (200), according to claim 5, characterized in that the debris removal tube (250) extends to the second section (330) and is removablely engaged with the crossover sub (210) near an interface between the first section (320) and the second section (330), or optionally in that the debris removal tube (250) is threaded onto the crossover sub (210).
  7. 7. Bottomhole debris removal apparatus (200), according to claim 5, characterized in that it further includes a debris removal opening (350) coupling an exterior of the collection sub and the cross-sub collection chamber (210).
  8. 8. Bottomhole debris removal apparatus (200), according to claim 7, characterized in that the debris removal opening (350) is located near an interface between the first section and the second section, or optionally also including a debris removal plug that retractably engages the debris removal opening (350) from outside the collection sub.
  9. 9. Well bottom debris removal apparatus (200), according to claim 1, characterized in that the debris removal tube (250) is uncapped near the second end of the tube (258) to allow debris to exit the debris removal tube (250) or, optionally, wherein the debris removal tube (250) is capped near the second end of the tube (258), the debris removal tube (250) including one or more sidewall openings (370) to allow debris to exit the debris removal tube (250).
  10. 10. Downhole debris removal apparatus (200), according to claim 1, characterized in that the first sub end (220) has a sub tube fillet (225) and the second sub end (230) has a sub sleeve fillet (235) and further includes a downhole tubular (270) engaged with the crossover sub (210) and enclosing the debris removal tube (250), the downhole tubular (270) having a first tubular end (280) with a tubular tube fillet (285) engaging with the sub sleeve fillet (235) of the crossover sub (210) and a second tubular end (540) with a tubular sleeve fillet (295, 545) or, optionally, wherein the crossover sub (210), debris removal tube (250) and downhole tubular (270) form at least one portion of a debris collection sub (510) and further including a debris removal sub coupled to the debris collection sub (510) or, optionally, wherein a pipe thread of the debris removal sub engages with the tubular sleeve thread (295, 545) of the downhole tubular (270).
  11. 11. Method for assembling a downhole debris removal apparatus (200), characterized in that it comprises: providing a debris collection sub (510), the debris collection sub (510) including; a crossover sub (210), the crossover sub (210) having a first sub end (220) with a sub tube fillet (225), a second sub end (230) with a sub sleeve fillet (235) and a fluid passage (240) extending from the first sub end (220) to the second sub end (230); a debris removal tube (250) having a first tube end (254) and a second tube end (258), the first tube end (254) being removablely engaged with the crossover sub (210) between the first sub end (220) and the second sub end (230), the debris removal tube (250) including two or more centralizers (265) extending radially outward therefrom, the two or more centralizers (265) having a radially retracted state and a radially extended state; positioning the debris removal tube (250) of the debris collection sub (510) within a downhole tubular (270), the downhole tubular (270) having a first tubular end (280) with a tubular tube fillet (285) and a second tubular end (540) with a tubular sleeve fillet (295, 545); fix the well bottom tube (270) to the debris collection sub (510) by coupling the tubular tube thread (285) of the well bottom tube (270) and the sub sleeve thread (235) of the crossing sub (210).
  12. 12. Method according to claim 11, characterized in that the positioning of the debris removal tube (250) within the downhole tube (270) includes passing the two or more centralizers (265) in the radially retracted state through the first tubular end (280) of the downhole tube (270) and then allowing the two or more centralizers (265) to move from the radially retracted state to the radially extended state when the two or more centralizers (265) reach a main passage of the downhole tube (270) and then attaching the downhole tube (270) to the debris collection sub (510) or, optionally, further including coupling a tube fillet from a debris removal sub to the tubular sleeve fillet (295, 545) of the downhole tube (270).
  13. 13. Well system, characterized by the fact that it comprises: one. a wellbore extending into an underground formation (110); a transport means (175) located within the wellbore; a downhole debris removal apparatus (200) positioned within the wellbore with the transport means (175), the downhole debris removal apparatus (200) including: a crossover sub (210), the crossover sub (210) having a first sub end (220) with a sub tube fillet (225), a second sub end (230) with a sub sleeve fillet (235) and a fluid passage (240) extending from the first sub end (220) to the second sub end (230); a debris removal tube (250) having a first tube end (254) and a second tube end (258), the first tube end (254) being removablely engaged with the crossover sub (210) between the first sub end (220) and the second sub end (230), the debris removal tube (250) including two or more centralizers (265) extending radially outward therefrom, the two or more centralizers (265) having a radially retracted state and a radially extended state; a downhole tube (270) engaged with the crossover sub (210) and enclosing the debris removal tube (250), the downhole tube (270) having a first tubular end (280) with a tubular tube fillet (285) engaging with the sub sleeve fillet (235) of the crossover sub (210) and a second tubular end (540) with a tubular sleeve fillet (295, 545); a power head (190) coupled to the downhole debris removal apparatus (200), the power head (190) being operable to provide fluid circulation through the downhole debris removal apparatus (200).

Description

CROSS-REFERENCE ON RELATED REQUEST [0001] This application claims priority to U.S. Application No. 17/124,617, filed December 17, 2020, entitled “DOWNHOLE DEBRIS REMOVAL APPARATUS INCLUDING A MODULAR KNOCKOUT CHAMBER,” commonly assigned to this application and incorporated herein by reference in its entirety. FUNDAMENTALS [0002] Well operations, such as milling a tool or pipe into a wellbore or a fracturing operation, create debris that needs to be collected and removed from the well. For example, a downhole assembly with a milling cutter is fitted with a debris collection tool. Debris collection tools are sometimes called debris baskets, collection baskets, or debris screens. There are a variety of different collection tools that operate on different principles. However, in general, these various tools have a common goal of separating the circulating fluid from cuttings and/or other debris that are present in the wellbore. In some tools, reverse circulation is created at the lower end of the tubing string and is used to circulate the debris within the collection tool. Reverse circulation is usually created using a tool, sometimes called a venturi device (e.g., powerhead), to direct the flow laden with cuttings and/or particulate matter into a debris removal assembly. BRIEF DESCRIPTION OF THE DRAWINGS [0003] FIG. 1 illustrates a well system including a downhole debris removal apparatus designed, manufactured and/or operated in accordance with this disclosure. [0004] FIG. 2 illustrates a downhole debris removal apparatus designed, manufactured and operated in accordance with one or more embodiments of the disclosure. [0005] FIG. 3 illustrates a downhole debris removal apparatus designed, manufactured and operated in accordance with one or more alternative embodiments of the disclosure. [0006] FIGS. 4A to 4D illustrate a method for assembling a downhole debris removal apparatus according to one or more embodiments of the disclosure. [0007] FIG. 5 illustrates a downhole debris removal apparatus designed, manufactured and operated in accordance with one or more additional embodiments of the disclosure. DETAILED DESCRIPTION [0008] In the following drawings and descriptions, similar parts are typically marked throughout the descriptive report and in the drawings with the same reference numerals, respectively. The figures drawn are not necessarily, but may be, to scale. Certain features of the disclosure may be shown exaggerated in scale or in a somewhat schematic way, and some details of certain elements may not be shown in the interest of clarity and conciseness. [0009] This disclosure can be implemented in different ways. The specific ways are described in detail and shown in the drawings with the understanding that this disclosure should be considered an exemplification of the disclosure principles, and is not intended to limit the disclosure that is illustrated and described in this document. It will be fully recognized that the different teachings of the ways discussed in this document can be employed separately or in any suitable combination to produce the desired results. Furthermore, all statements in this document containing principles and aspects of disclosure, as well as specific examples thereof, are intended to encompass equivalents thereof. In addition, the term "or," as used in this document, refers to a non-exclusive "or," unless otherwise indicated. [0010] Unless otherwise specified, the use of the terms "connect," "engage," "coupling," "fixing," or any other similar term describing an interaction between elements is not intended to limit the interaction to direct interaction between the elements, and may also include indirect interaction between the elements described. [0011] Unless otherwise specified, the use of the terms "upward," "upper," "above," "hole above," "upstream," or other similar terms shall be interpreted as generally referring to the surface of the well; similarly, the use of the terms "below," "lower," "downward," "bottom of the well," or other similar terms shall be interpreted as generally referring to the bottom, terminal end of a well, regardless of the orientation of the wellbore. The use of any one or more of the foregoing terms shall not be interpreted as denoting positions along a perfectly vertical or horizontal axis. Unless otherwise specified, the use of the expression "subterranean formation" shall be interpreted as encompassing both areas below exposed earth and areas below earth covered by water, such as ocean or potable water. [0012] With reference initially to FIG. 1, schematically illustrated is a well system 100, including a downhole debris removal apparatus 180 designed, manufactured and/or operated in accordance with at least one embodiment of the present disclosure. The well system 100 of FIG. 1, without limitation, includes a semi-submersible platform 115 having a deck 120 positioned over an underground formation (e.g., oil and gas) 110, which in this embod