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Publication numberUS2718308 A
Publication typeGrant
Publication dateSep 20, 1955
Filing dateMay 23, 1950
Priority dateMay 23, 1950
Publication numberUS 2718308 A, US 2718308A, US-A-2718308, US2718308 A, US2718308A
InventorsLe Bus George Franklin
Original AssigneeLe Bus George Franklin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sand and gas traps for oil wells
US 2718308 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Sept 20, 1955 G. F. LE BUS SAND AND GAS VYTRAPS FOR OIL WELLS Filed VMay 23, 1950 IN1/EN TOR. sarye? 5.31.75

wam' 9.!! ffl/filari! and the lower surface of the cap 14a forms a restriction that will permit a given amount of oil at a given pressure to ow therethrough, which will serve as a choke to prevent the well from depleting its entire liquid reserve and gassing, thereby losing the bottom hole pressure.

By having the cap 14a surrounding and protruding downward over the upstanding tube 14, the oil or other liquid is forced to follow a passage as indicated by the arrows, and when the oil or other liquid emerges from the annular space formed between the outer periphery of tube 14 and the inner diameter of cap 14a the sand continues to settle down into the bottom portion of each chamber, whereas the oil will turn upward and flow out through tubing 3.

By the oil owing downward into the lower chamber or reservoir 8 into a relatively large cross sectional area a quiescent state thereof will prevail which will permit the greater portion of the sand to settle, then with the oil or other liquid passing upward through tubes 14 and downward through the annular space formed between the tube 14 and the downturned cap 14a into the large annular space formed by the inner shell 7 the remaining sand will settle out as the oil turns upward, and will be deposited in each of the chambers.

The annular space intermediate tubes and shell members 6 and 7 is of much greater cross sectional area than the combined cross sectional areas of the openings within the tube 10, therefore, the oil or other liquid in which sand is entrained moves upward, after having passed down through the inlet tube 10, which will cause sand or other foreign particles to settle out into this annular space.

It is to be pointed out that a multiplicity of sections 7 may be used to make up the sand and gas trap, and that the oil containing the sand may be passed through several of these sections in order to remove the sand therefrom.

While Fig. 2 of the drawing, shows tubes 14 of the adjacent sections 7 to be in alignment, it is to be pointed out that these tubes may be spaced out of axial alignment so as to cause a zig-zag ow of oil through the chamber as dened by the intermediate tubes 7, to allow the sand to settle out of the oil.

The inlet tube 10 may be shouldered at 15 to interconnect with a section thereabove, as will best be seen in Fig. 2, and rubber gaskets 16 are provided to insure proper sealing of the tube.

It is to be pointed out that wells producing a high proportion of sand to the amount of oil may need from twelve to twenty, or even more of the sections 7 having tubes 10 and 14 therein, and each intermediate section 7 forms a separate and independent sand trap in addition to the reservoir of chamber 12.

While the invention has been described and illustrated in one embodiment thereof, it is to be understood that changes may be made in the minor details of construction, and adaptations made to suit various working conditions without departing from the spirit of the invention as claimed.

Having thus clearly shown and described the invention, what is claimed as new, and desired to secure by Letters Patent is:

1. In a sand trap for deep wells, a tubular casing comprising a plurality of shell members connected together, the uppermost of said shell members having a lateral tube therein forming an inlet therethrough, the lowermost of said shell members forming a sand receiving chamber, a bafe clamped between said shell members, said battle having a central tube and a plurality of circumferentially spaced upstanding tubes open at their ends secured thereto for passing liquid therethrough, each of said circumferentially spaced tubes having a cover member attached thereto and spaced from the upper end thereof and forming a passage therebetween for diverting liquid and sand passing therethrough downward so that the sand entrained within said liquid that passes through said inlet opening will settle out as the liquid passes upward through said trap, and said lateral tube forming a connection with the upper end of said central tube so as to direct said liquid and sand into said chamber formed in the lower end of said lowermost shell.

2. In a sand trap for separating solids from liquids in deep wells, a tubular casing comprising a series of shell members threaded together, the uppermost of said shell members having a lateral tube forming an inlet opening therein, the lowermost of said shell members forming a sand receiving chamber, at least one intermediate shell member having a sand receiving chamber formed therein, a bafe clamped near each pair of adjacent ends of said shell members, each of said battles having a central tube and a plurality of circumferentially spaced, upstanding, open end tubes secured therein, each of said circumferentially spaced, upstanding tubes having a cupped member attached to and spaced from the sides and the upper, open end thereof and forming a passage therebetween for diverting said liquid passing therethrough downward so that the sand entrained within said liquid that passes through said inlet opening will settle out as the liquid passes upward through said trap, said lateral tube forming connection with the upper end of said central tube so as to direct said liquid and sand into chambers formed at the lower vend of each of said shell members.

3. In a sand trap for separating solids from liquids in deep wells, a tubular casing comprising at least two shell members threaded together, the upper most of said shell members having a lateral tube forming an inlet opening therein, the lowermost of said shell members forming a sand receiving chamber, a baille clamped near each pair of adjacent ends of said shell members, each of said bales having a central, upstanding tube and a plurality of upstanding, open end tubes secured therein and surrounding said central upstanding tube, each of said upstanding tubes surrounding said central tube having a cupped member attached to and spaced from the sides and the upper open end thereof and forming a passage therebetween for diverting said liquid passing therethrough downward so that the sand entrained within said liquid that passes through said inlet opening will settle out as the liquid passes upward through said trap, said lateral tube forming connection with the upper end of said central tube so as to direct said liquid and sand into a chamber formed at the lower end of said shell members.

4. In a sand trap for deep wells, a tubular casing comprising a threaded tubular top shell member having an open top and a lateral tube forming an inlet opening, a threaded bottom tubular shell member closed at its lower end, a series of intermediate threaded, tubular shell members each having a shoulder internally formeda spaced distance from an end thereof, a series of bailles each having a central hole formed therein and a central, open end, inlet tube registering with the respective central holes and being secured to and upstanding from the respective bafes, the uppermost of said upstanding tubes registering with said lateral tube, a series of upstanding, circumferentially spaced tubular members positioned on said baflies around said central tube and extending upward from said baffles, each of said circumferentially spaced tubes regisl, tering with an opening formed in the respective bales, each of said circumferentially spaced tubes having a cup attachably and adjustably secured thereto at the upper end thereof and spaced from the sides and end of the respective tubes, said tubular shell members being screw threaded together so as to present longitudinally aligned sections, one of said bafes being positioned intermediate the adjacent, longitudinally aligned, tubular shell members so that said circumferentially spaced tubular members will extend upwardly from each of said baffles, said central tubular members below said uppermost tubular member will engage the adjacent central tubular members in end to end relation, resilient packing means tted at the juncture of said central tubes so as to form a seal therebetween so as to form an inlet conduit through said top and intermediate tubular shell members to said bottom tubular shell member for discharging liquids and solids therethrough into said bottom tubular shell member, said circumferentially spaced tubular members interconnecting with the bottom shell member so as to convey said liquid and a portion of said sand upward therethrough with the liquid flowing out through the upper end of said top tubular shell member and a portion of said sand settling on each of said baffles.

5. In a sand trap for deep wells, a series of elongated tube members forming a shell, said shell having an inlet opening and an outlet opening formed therein, an apertured baille clamped intermediate each pair of elongated tubular shell members, each of said baffles having a central tube in register with one of said apertures in said baffie and extending upward therefrom, one end of the uppermost of said central tubes being connected with said inlet opening and the other end of said central tube being in complementary engagement with an adjacent central tube in end to end relation to form a continuous passage through said shell to a point below the lowermost of said balles, a plurality of upstanding tubes on each of said baffles surrounding the respective central tubes, which upstanding tubes have open ends and are in register with apertures in the respective baffles, and a cover secured to and spaced from each of said upstanding tubes.

References Cited in the le of this patent UNITED STATES PATENTS 1,431,006 Kelsey Oct. 3, 1922 1,561,049 Bonner et al Nov. 10, 1925 1,655,817 Marsh Jan. 10, 1928 1,673,663 Chancellor et al June 12, 1928 1,742,281 Rundlett Jan. 7, 1930 2,014,827 Williams Sept. 17, 1935 2,205,336 Beach June 8, 1940

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1431006 *Jul 18, 1921Oct 3, 1922Laurel Kelsey LesterSand trap for wells
US1561049 *Apr 3, 1925Nov 10, 1925Bonner John H StaytonPump
US1655817 *May 31, 1927Jan 10, 1928Marsh Hallan NTandem gas anchor
US1673663 *Feb 27, 1926Jun 12, 1928Calvert Sebastian LMethod of separating gas and water from oil and apparatus therefor
US1742281 *Mar 9, 1928Jan 7, 1930Leslie L SteindlerFiltering method and apparatus
US2014827 *Nov 19, 1932Sep 17, 1935Williams BurtSand trap for pumps
US2205336 *Dec 13, 1938Jun 18, 1940Beach Russ CompanyOil and water separator
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3149671 *Jul 16, 1962Sep 22, 1964Gem Oil Tool Company IncVelocity joint and container
US3318383 *Oct 27, 1964May 9, 1967Par A Gone IncApparatus for cold treating mineral oil
US5389128 *Jun 23, 1993Feb 14, 1995Petroleo Brasileiro S.A. - PetrobrasMultiple, self-adjusting downhole gas separator
US6066193 *Aug 21, 1998May 23, 2000Camco International, Inc.Tapered flow gas separation system
US6322616 *Feb 24, 2000Nov 27, 2001Sdh, Inc.Gas separator for an oil well production line
US6712982Apr 17, 2003Mar 30, 2004Rentech, Inc.Method of removing catalyst particles from wax
US6730221 *May 29, 2001May 4, 2004Rentech, Inc.Dynamic settler
US6974537 *Nov 19, 2003Dec 13, 2005Ali Hasan Hamdan AbdelqaderDiesel fuel purifier
US7078439Jan 7, 2004Jul 18, 2006Conocophillips CompanySystems and methods for catalyst/hydrocarbon product separation
US7080686 *Nov 12, 2003Jul 25, 2006David BeckhardtDevices and methods for extraction, transportation and/or release of material
US8211319 *Jul 3, 2012Bp Corporation North America Inc.Solid-liquid separation process
US8530716Aug 14, 2008Sep 10, 2013Bp Corporation North America Inc.Melt-crystallization separation and purification process
US8962906Sep 20, 2010Feb 24, 2015Bp Corporation North America Inc.Apparatus and process for the separation of solids and liquids
US20030205516 *Apr 17, 2003Nov 6, 2003Bohn Mark S.Method of removing catalyst particles from wax
US20040112607 *Nov 12, 2003Jun 17, 2004David BeckhardtDevices and methods for extraction, transportation and/or release of material
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US20050103728 *Nov 19, 2003May 19, 2005Abdelqader Ali H.H.Diesel fuel purifier
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WO2002097007A2 *May 9, 2002Dec 5, 2002Rentech, Inc.Dynamic settler
WO2002097007A3 *May 9, 2002Mar 27, 2003Rentech IncDynamic settler
WO2004044370A2 *Nov 13, 2003May 27, 2004David BeckhardtDevices and methods for extraction, transportation and/or release of material
WO2004044370A3 *Nov 13, 2003Jun 23, 2005David BeckhardtDevices and methods for extraction, transportation and/or release of material
Classifications
U.S. Classification210/532.1, 166/162, 96/215, 166/69
International ClassificationE21B43/34, E21B43/38
Cooperative ClassificationE21B43/38
European ClassificationE21B43/38