US3489232A - Double tube jetting tool - Google Patents

Double tube jetting tool Download PDF

Info

Publication number
US3489232A
US3489232A US654026A US3489232DA US3489232A US 3489232 A US3489232 A US 3489232A US 654026 A US654026 A US 654026A US 3489232D A US3489232D A US 3489232DA US 3489232 A US3489232 A US 3489232A
Authority
US
United States
Prior art keywords
tube
jetting
outer casing
water
air
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
Application number
US654026A
Other languages
English (en)
Inventor
Howard J Hoody
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.)
HOWARD J HOODY
Original Assignee
HOWARD J HOODY
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 HOWARD J HOODY filed Critical HOWARD J HOODY
Application granted granted Critical
Publication of US3489232A publication Critical patent/US3489232A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Definitions

  • a hydraulic jetting tool for drilling during the installation of deep wells and other uses having a jet tube spaced inwardly from an outer annular casing, a jetting means mounted on the lower end of the jet tube, water flowing upwardly between said tube and outer casing for carrying m-ud with it, a ram head attached to the jetting tube driving the outer casing downwardly.
  • a particular object of the invention is to provide a jetting tool that is sufilciently eflicient as to replace more conventional well drilling tools such as churn drills, rotary drills, and the like, in installing deep wells.
  • Jetting tools of the prior art have not had this efiiciency and it is an object to provide a greater efficiency in a jetting tool by surrounding a water jetting area underneath the tool with an outer casing surrounding on all sides the water jetting area, the outer casing being open on its underside to allow the jets to wash loose the earth, and the outer casing extending upwardly, whereby an annular mud-escape space is defined between the outer casing and the inner jet tube through which mud can rise, whereby the outer casing tends to contain the jetting effect and to cause it to be directed selectively into positions directly beneath the tool without wasteful excessive sidewashing of water against the sides of the dredged earthcavity, as has been a characteristic of jetting tools for the prior art.
  • a further object of the invention is to provide a jetting tool as described provided with a compressed air line for delivering air for admixture with mud and water so that the air, because of the tendency of air to rise, helps the water flow to push the mud upwardly through the annular mud-escape space between the outer casing and the jet tube.
  • Still another object is to provide means for delivering the air near the bottom of the tool into the mud-escape space adjacent the nozzles alongside of or below the nozzles.
  • Still another object is to provide an outer casing as described provided with water escape openings therethrough for the escape of water into the space between the outer casing and the earth for lubricating the latter space so that the outer casing is more free to be moved upwardly and downwardly with respect to the earth where a strata of cohesive material such as clay is present in great depth of strata.
  • Cohesive material such as clay binds on the sides of a conventional jetting tool most seriously and the water escape or lubrication openings have been found to be a superb solution to this vexing problem.
  • Still another objective is to provide a tool as described the outer casing of which is separate from the jet tube and in which a ram head is mounted at the upper end of the jet tube in a position for ramming the outer casing downwardly into the earth by impact from the ram head against the outer casing.
  • FIGURE 1 is a top plan view of the tool of this invention.
  • FIGURE 2 is a sectional view taken along the line 2-2 of FIGURE 1.
  • FIGURE 3 is a sectional view taken along the line 3-3 of FIGURE 2.
  • FIGURE 4 is a sectional view taken along the line 44 of FIGURE 2.
  • the double tube jetting tool of this invention is generally indicated at 10 in FIGURE 1 and has a jet tube 16, preferably of cylindrical shape on its outer and inner sides, and normally used in an upstanding vertical position.
  • An outer annular casing 20 surrounds and is spaced from the tube 16, the casing 20 being also cylindrical and coaxial with the tube 16.
  • Jetting means 30 is mounted on the lower end of the tube 16 and has downwardly directed outlet means, preferably in the form of a plurality of nozzles 40 for delivering jets of water downwardly from the lower end 44 of the jet tube 16, whereby the water tends to flow upwardly between the tube 16 and the outer casing 20, carrying mud with it as later described.
  • the outer casing 20 has a lower end 48 extending a substantial distance lower than the outlet means or nozzles 30, so that when the lowermost edge 50 of the outer casing 20 is in engagement with earth therebeneath, not shown, the nozzles 40 will be spaced therefrom.
  • the jet tube 16 has an impact means or assembly 70 mounted on its lower end and extending lower than the outlet means 76 of each of the various nozzles 40.
  • the impact means 70 is preferably formed with portions 78 which extend outwardly in a plurality of horizontal directions from the central axis 80 of the tube 16 as seen in bottom plan view with a nozzle supporting plate extending transversely of the vertically elongated nozzles 40 and having openings therein at 94 for receiving the lower ends of the nozzles 40, respectively, in a snug manner for giving support to the nozzles 40.
  • the impact means 70 has its separate portion 78 provided with convexly curved upwardly and outwardly inclining lower edges 100, extending upwardly and outwardly from the central axis 80 at the lowermost center point of the impact means or assembly 70.
  • Air delivery means generally indicated at and partially defined by a pipe 112 is provided, the pipe 112 extending from an inlet 114 opening outwardly of the casing 16 and at an upper portion thereof, and extending downwardly to communication with branches 120, which latter are pipes extending downwardly through a bottom wall of the jetting tube 16 and then further downwardly and outwardly so as to have ends 136 opening upon the annular space 140 which is disposed between the tube 16 and the outer casing 20.
  • the air passing through the air delivery means 110 and out through the outlets 140 tend to rise up in the annular space 140, having the effect of assisting the upward movement of water and mud in the space 140.
  • the open ends 136 of the air branches 120 are disposed a substantial distance above the jetting nozzle 40 outlets 76.
  • a ramhead generally indicated at 210 and comprising a ram plate 220 is attaching to the jetting tube 16 in a position above the outer casing 20 and near but below the upper end 224 of the jetting tube 16.
  • the underside of the plate 210 is adapted to engage and am against the upper edge 226 of the outer casing 20 as test seen in FIGURE 2, as the jetting tube 16 is moved 1p and down, while the position of the outer casing 20 vith respect to the jet tube 16 is maintained by annular ;uide flange 240 fixed to and extending downwardly from he ram plate 220 and of cylindrical shape having an nner side 250 adapted to slidably and snugly engage the )uter side of the cylindrical outer casing 20.
  • Gussets 260 brace the plate 220.
  • spacers 270 vertically disposed, can be mount- :d on a plurality of sides of the jetting tube 16 for naintaining a spaced relationship between the tube 16 and he outer casing 20.
  • the spacers 270 are to be found Lt the lower end of the casing 20.
  • water inlet )ipes 300 enter through an upper closure end 302 of the etting tube 16 and a lifting bridle formed of cables or )ther suitable means is shown at 330 as attached to the etting tube 16 by means of ears 334.
  • the jetting water "rem the lower ends 76 of the nozzles 40 is not admixed with air as it leaves the nozzle ends 76, and that it :an strike the dirt with a full impact for forming mud.
  • this invention is believed to have fulilled the objectives above set forth in providing a superior etting tool.
  • a jetting tool having a jet tube, an outer annular casing surrounding and spaced from said jet tube, jetting means mounted on the lower end of said jet tube, said jetting means having downwardly directed outlet means for delivering jets of water downwardly from a lower end of said jet tube, whereby said water tends to flow upwardly between said tube and said outer casing carrying mud with it, a ramhead attached to said tube above said outer casing, the lower side of said ramhead being adapted to ram against the upper sides of said outer casing for driving said outer easing into the earth as said tube is suddenly allowed to fall in a downward impact stroke.
  • said jet tube and said casing define a tube and casing assembly, an air delivery means attached to said assembly and extending from the upper end of said assembly downwardly, said air delivery means having an air outlet means disposed inside said casing in a lower portion of said casing for introducing air into the mud in the lower portion of said casing to assist in the lifting of said mud, said air outlet means being separate from said jetting means outlet means.

Landscapes

  • 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)
  • Earth Drilling (AREA)
US654026A 1967-06-16 1967-06-16 Double tube jetting tool Expired - Lifetime US3489232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65402667A 1967-06-16 1967-06-16

Publications (1)

Publication Number Publication Date
US3489232A true US3489232A (en) 1970-01-13

Family

ID=24623189

Family Applications (1)

Application Number Title Priority Date Filing Date
US654026A Expired - Lifetime US3489232A (en) 1967-06-16 1967-06-16 Double tube jetting tool

Country Status (2)

Country Link
US (1) US3489232A (cg-RX-API-DMAC7.html)
FR (1) FR1575913A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702515A1 (fr) * 1993-03-11 1994-09-16 Simon Henri Procédé et installation pour réalisation de travaux de terrassements notamment excavation en milieu encombré sensible.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE395928B (sv) * 1975-09-19 1977-08-29 Cerac Inst Sa Sett och anordning for brytning av ett fast material, sasom berg
FR2372309A1 (fr) * 1976-11-25 1978-06-23 Menard Louis Appareillage de perforation du sol

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1010723A (en) * 1909-11-18 1911-12-05 Amasa B Clark Pile-driver.
US1868400A (en) * 1929-09-17 1932-07-19 Fred N Stover Well digging apparatus
US2684229A (en) * 1951-09-06 1954-07-20 Frank S Bergstrom Apparatus for exploration drilling
US2805043A (en) * 1952-02-09 1957-09-03 Jr Edward B Williams Jetting device for rotary drilling apparatus
US3181628A (en) * 1963-05-20 1965-05-04 William P Verville Conductor sleeve and packing gland for sub-aqueous marine drilling
US3215201A (en) * 1962-09-13 1965-11-02 Shell Oil Co Well drilling method and apparatus
US3262508A (en) * 1963-12-04 1966-07-26 Texaco Inc Hydraulic drilling and casing setting tool
US3316985A (en) * 1959-12-23 1967-05-02 Hydro Jet Services Inc Under-reaming machine
US3384192A (en) * 1965-12-27 1968-05-21 Gulf Research Development Co Hydraulic jet bit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1010723A (en) * 1909-11-18 1911-12-05 Amasa B Clark Pile-driver.
US1868400A (en) * 1929-09-17 1932-07-19 Fred N Stover Well digging apparatus
US2684229A (en) * 1951-09-06 1954-07-20 Frank S Bergstrom Apparatus for exploration drilling
US2805043A (en) * 1952-02-09 1957-09-03 Jr Edward B Williams Jetting device for rotary drilling apparatus
US3316985A (en) * 1959-12-23 1967-05-02 Hydro Jet Services Inc Under-reaming machine
US3215201A (en) * 1962-09-13 1965-11-02 Shell Oil Co Well drilling method and apparatus
US3181628A (en) * 1963-05-20 1965-05-04 William P Verville Conductor sleeve and packing gland for sub-aqueous marine drilling
US3262508A (en) * 1963-12-04 1966-07-26 Texaco Inc Hydraulic drilling and casing setting tool
US3384192A (en) * 1965-12-27 1968-05-21 Gulf Research Development Co Hydraulic jet bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702515A1 (fr) * 1993-03-11 1994-09-16 Simon Henri Procédé et installation pour réalisation de travaux de terrassements notamment excavation en milieu encombré sensible.

Also Published As

Publication number Publication date
FR1575913A (cg-RX-API-DMAC7.html) 1969-07-25

Similar Documents

Publication Publication Date Title
US2849213A (en) Apparatus for circulating drilling fluid in rotary drilling
US3081828A (en) Method and apparatus for producing cuts within a bore hole
US2786651A (en) Apparatus for circulating drilling fluid in rotary drill
US2057691A (en) Method of and apparatus for excavating
US1831209A (en) Method of and apparatus for making cast-in-place piles
US3123159A (en) Jet underreaming
US2711598A (en) Hydraulic excavator
RU2282012C2 (ru) Буровое устройство для бурения с промывкой, способ проходки скважины в грунте и буровая установка
Bowman ... Well-drilling Methods
US3599733A (en) Method for directional drilling with a jetting bit
US3489232A (en) Double tube jetting tool
US2599980A (en) Hydraulic dredging machine
US3360061A (en) Large well bore drilling apparatus
US1899728A (en) Well drilling apparatus
US3289421A (en) Method for driving piles
KR101161158B1 (ko) 지반 개량용 굴착기의 굴착 로드를 위한 세정 장치
US1907854A (en) Sinking foundation
US2646128A (en) Drilling equipment
US2643094A (en) Drilling method and apparatus
US2703145A (en) Well cementing device with jet recycling
CN117779887A (zh) 一种盾构隧道修复工程气举联合清淤方法
US1003284A (en) Well-digging apparatus.
US131746A (en) Improvement in sinking metallic piles
US2624548A (en) Excavator having means for forming polygonal holes
US1400132A (en) Drill