WO2014107724A2 - Système de collecte d'écoulement de retour et procédé permettant leur récupération - Google Patents

Système de collecte d'écoulement de retour et procédé permettant leur récupération Download PDF

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Publication number
WO2014107724A2
WO2014107724A2 PCT/US2014/010488 US2014010488W WO2014107724A2 WO 2014107724 A2 WO2014107724 A2 WO 2014107724A2 US 2014010488 W US2014010488 W US 2014010488W WO 2014107724 A2 WO2014107724 A2 WO 2014107724A2
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WO
WIPO (PCT)
Prior art keywords
collection vessel
backflow
collection
auger
solid
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.)
Ceased
Application number
PCT/US2014/010488
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English (en)
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WO2014107724A3 (fr
Inventor
Bruce Thompson
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.)
Individual
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Individual
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
Priority claimed from US13/735,879 external-priority patent/US9597614B2/en
Application filed by Individual filed Critical Individual
Priority to CA2897396A priority Critical patent/CA2897396C/fr
Priority to RU2015132893A priority patent/RU2015132893A/ru
Priority to MX2015008771A priority patent/MX360937B/es
Priority to CN201480008824.1A priority patent/CN105189913A/zh
Publication of WO2014107724A2 publication Critical patent/WO2014107724A2/fr
Publication of WO2014107724A3 publication Critical patent/WO2014107724A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34—Arrangements for separating materials produced by the well
    • E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/07—Arrangements for treating drilling fluids outside the borehole for treating dust-laden gaseous fluids

Definitions

  • the present disclosure is directed, in general to a receptacle and more specifically, to a backflow collection receptacle and method for using the same.
  • Hydraulic fracturing is a process designed to enhance the productivity of oil and gas wells or to improve the injectivity of injection wells.
  • a viscous fluid is injected into the wellbore at such a rate and pressure as to induce a crack or fracture in the formation.
  • a propping agent such as sand (e.g., often referred to as "frac" sand)
  • frac a propping agent
  • This sand laden slurry is continuously injected causing the fracture to propagate or extend.
  • pumping is terminated, and the well is shut- in for some period of time.
  • the sand After the pressure is released from the wellbore, the sand, or at least a significant portion of the sand, remains within the fractured strata thereby holding the strata in a substantially fractured state. Accordingly, the oil and gas is allowed to flow freely. Unfortunately, as the oil and gas begin to flow it starts to push other unwanted fluids and gasses, as well as some unwanted particulates from the strata (including, frac sand, salts, etc.) back to the surface.
  • Hydrogen sulfide is the chemical compound with the formula H 2 S. Hydrogen sulfide is a colorless, very poisonous, flammable gas with the characteristic foul odor of rotten eggs. As hydrogen sulfide is extremely poisonous, and is often odorless in small concentrations, it is a significant concern during the collection of the unwanted fluid and particulates that backflow from the wellbore.
  • the backflow collection system in one embodiment, includes a collection vessel having an upper section and a lower section, the collection vessel having a side opening configured to receive backflow from an oil/gas well, as well as a discharge port proximate an upper end of the upper section configured to discharge pressurized gas from the collection vessel.
  • the backflow collection system in this embodiment, further includes an auger coupled proximate the lower section of the collection vessel, the auger configured to receive solid and liquid matter from a bottom opening in the lower section of the collection vessel, and when elevated remove at least a portion of the solid and liquid matter from the collection vessel, the collection vessel designed such that when fluid is contained therein it acts as a liquid/gas seal to prevent the pressurized gas from exiting through the bottom opening in the lower section of the collection vessel.
  • the method includes collecting solid and liquid matter from a wellbore within a backflow collection system, the backflow collection system being similar to the backflow collection system of the paragraph above.
  • the method further includes operating the auger in a manner configured to remove at least a portion of the solid matter from the collection vessel while burning the pressurized gas exiting the discharge port.
  • Fig. 1 illustrates a collection receptacle in accordance with the disclosure
  • Figs. 2A thru 2E illustrate various views of an elevated auger including a housing and a flighting
  • Fig. 3 illustrates an alternative embodiment of an elevated auger
  • Fig. 4 illustrates yet another alternative embodiment of an elevated auger
  • Figs. 5-7 illustrate various different views of a backflow collection system manufactured and operated in accordance with this disclosure.
  • a collection receptacle 100 in accordance with the principles of the disclosure.
  • the collection receptacle 100 may be used to collect any number of different types of matter, including solid matter, liquid matter or a combination thereof.
  • the collection receptacle is configured to reclaim, including collecting and dispensing, backflow from a wellbore.
  • the collection receptacle could be configured to reclaim fluid, hydrocarbons, frac sand, salts, etc., that would backflow from a wellbore after fracturing an oil and gas strata.
  • the collection receptacle 100 of Fig. 1 includes an enclosure 110.
  • the enclosure 110 in this embodiment, is configured to collect solid and liquid matter.
  • the enclosure 110 of Fig. 1 includes a first portion 120 and a second portion 130.
  • the first portion 120 in this embodiment, is configured to initially collect the solid and liquid matter.
  • the first portion 120 has an opening 125 (e.g., weir) in an upper region thereof.
  • the opening 125 in one embodiment, is configured to allow excess collected liquid matter to overflow into the second portion 130 as the collected solid matter falls to a bottom of the first portion 120.
  • the first portion additionally includes an emergency opening 127 configured to quickly divert extreme amounts of collected solid and liquid matter to the second portion 130.
  • the purpose of the emergency opening 127 is to prevent overflow of the collected liquid and/or solid matter from the enclosure 110 in the event the opening 125 cannot handle the volume of the incoming solid and liquid matter.
  • the positioning of the emergency opening 127 is above the positioning of the opening 125. Accordingly, the emergency opening, in this embodiment, will only be employed in extreme circumstances.
  • the opening 125 is located at the rear of the first portion 120, and the emergency opening 127 is located along the sides of the first portion 120. Nevertheless, the size, shape and location of each of the opening 125 and emergency opening 127 may be tailored on a use-by-use basis.
  • baffles 140 Located within the enclosure 110, and in this example the first portion 120, are one or more baffles 140.
  • the baffles 140 are used to help direct the solid matter to the bottom of the first portion 120, among other uses.
  • the collection receptacle 100 further includes an elevated auger 150 extending into the enclosure 110, and more particularly the first portion 120 of the embodiment of Fig. 1.
  • the auger 150 is configured to remove one or more contents from the enclosure 110. Nevertheless, in contrast to well known augers, the auger 150 is configured in such a way as to promote the separation of the solid matter from the liquid matter located within the enclosure 110, for example as the solid matter travels up the auger 150 and out of the enclosure 110.
  • the auger 150 of Fig. 1 includes a housing and a flighting, and in this embodiment the housing and flighting are configured in a manner to promote the aforementioned separation.
  • FIG. 2A illustrates a cutaway view of the auger 200
  • Fig. 2B illustrates the flighting 220
  • Fig. 2C illustrates a cross-section of the housing 210 taken through line C-C
  • Fig. 2D illustrates a cross-section of the housing 210 taken through line D-D.
  • the housing 210 has a radius r h and the flighting 220 has a lesser radius r f , the difference in radius configured to promote separation of the solid matter from the liquid matter.
  • the auger 200 creates a solid matter tube surrounding the flighting 220 as the solid matter is removed from the enclosure.
  • the term solid matter tube is intended to reference a tube like feature using the solid matter itself as the tube, as opposed to other rigid materials such as steel, iron, etc.
  • the solid matter tube, a sand or mud tube in one example provides a porous means for the liquid matter to travel back down the auger 200 as the solid matter travels up the auger 200. Likewise, as the solid matter travels up the auger 200 it is squeezed by the pressure of the solid matter tube against the flighting 220, thus further promoting the separation of the liquid matter.
  • the degree of difference between the housing radius r h and the flighting radius r f can be important to the ability of the auger 200 to promote separation. For instance, in one embodiment r f is less than about 90 percent of r h . In yet another embodiment, r f is less than about 75 percent of r h , and in yet another embodiment, r f is less than about 67 percent of r h . For example, in the embodiment of Figs. 2A thru 2D, r f ranges from about 5 inches to about 7 inches, whereas r h ranges from about 8 to about 9 inches.
  • the blocks 155 typically extend from the upper most inner surface of the housing toward the flighting, are located at one to six different locations, and are not required between the lower most inner surface of the housing and the flighting. Other configurations, beyond those just disclose, might also be used.
  • Fig. 2B illustrated is the flighting 220.
  • the flighting 220 includes a radius r f .
  • a shaft 230 of the flighting 220 includes a radius r s .
  • the "teeth" 240 of the flighting 220 extend only a little way from the shaft.
  • r s should be at least about 50 percent of r f . In an alternative embodiment, r s should be at least about 65 percent of r f , if not at least about 80 percent of r f . For example, in the embodiment of Fig. 2B, r s ranges from about 3 inches to about 4 inches, whereas r f ranges from about 5 inches to about 7 inches. To further promote separation, the teeth 240 may include notches therein, for example notches extending into the teeth 240 about .25 inches to about 1 inch.
  • FIGs. 2C and 2D illustrated are the cross-sections of the housing 210. As is illustrated in Fig. 2C, this portion of the housing 210 has a u-shaped trough cross-section. In contrast, as is illustrated in Fig. 2D, this portion of the housing 210 has a flare-shaped trough cross-section. Nevertheless, other cross-sections could be used .
  • Fig. 2E illustrated is an alternative cross-sectional shape for the housing 210. In this embodiment, as shown, the housing 210 may have a circular cross-section. In this embodiment, the circular cross-section might have a radius ranging from about 8 to about 10 inches, and more particularly about 9 inches.
  • a solid matter tube will likely form.
  • a centerline of the flighting will coincide with a centerline of the circular housing 210. In other embodiments, however, the centerlines will not coincide.
  • the centerline of the flighting will be closer to a bottom surface of the housing 210 than an upper surface of the housing 210. In this embodiment, the distance between the flighting and the bottom surface of the housing 210 will be less than a distance between the flighting and the top surface of the housing 210.
  • FIG. 3 illustrated is an alternative embodiment of an elevated auger 300.
  • the auger 300 of Fig. 3 in contrast to the degree of difference between the housing radius r h and the flighting radius r f , includes a drain shoot 315 extending along a bottom surface of a housing 310 thereof.
  • the drain shoot regardless of the shape thereof, provides a pathway for excess fluid to travel back down the auger 300 as the solid matter travels up the auger 300.
  • the housing 310 and the flighting 320 may have a somewhat similar overall shape and radius, but the added drain shoot 315 promotes the separation of the solid matter from the liquid matter. Accordingly, excess liquid matter squeezed from the solid matter travels down the drain shoot 315 as the solid matter travels up the auger 300.
  • the auger 400 of Fig. 4 in contrast to the degree of difference between the housing radius r h and the flighting radius r f , includes a housing 410 having a first portion 413 and a second portion 418 and surrounding a flighting 420.
  • the first portion 413 is located between the second portion 418 and the flighting 420, and furthermore is perforated to promote the separation of the solid matter from the liquid matter. Accordingly, excess liquid matter squeezed from the solid matter exits the first portion 413 through the perforations therein, and then travels back down the auger 400 between the space separating the first and second portions 413, 418, respectfully .
  • the auger 150 includes a gate 160 at a bottom portion thereof.
  • the gate 160 in this embodiment, is configured to allow solid matter to exit the auger 150 when operated in reverse. For example, certain situations may exist wherein solid matter remains within the enclosure 110, but there is a desire to fully empty the auger 150 of any solid matter. In this situation, the auger 150 could be operated in reverse, thereby emptying the auger 150 of any solid matter.
  • the gate 160 allows the auger 150 to rid itself of solid matter without putting undue stress or torque on the auger 150 and/or its motor. Accordingly, the gate 160 may be opened when the auger 150 is run in reverse, and any solid matter within the auger 150 will be efficiently removed therefrom. In the embodiment shown, the solid matter exits into the second portion 130 of the enclosure 110.
  • the collection receptacle 100 of Fig. 1 further includes a gas buster 170 located between the enclosure 110 and a wellbore.
  • the gas buster 170 is configured to dissipate energy associated with incoming solid and liquid matter.
  • the gas buster 170 is coupled to an upper portion of the enclosure 110, for example near a rear thereof.
  • the collection receptacle 100 of Fig. 1 further includes one or more wheels 180 coupled to the enclosure 110. The wheels 180 are configured to allow the collection receptacle 100 to roll from one location to another.
  • the auger 150 may include one or more inspection ports 190, for example with hinged covers,
  • a collection receptacle such as the collection receptacle 100 of Fig. 1, may be used for reclaiming backflow from a wellbore.
  • solid and liquid matter originally enters the first portion 120 of the enclosure 110 through the gas buster 170.
  • the liquid matter e.g., the water, salts, and hydrocarbons
  • the liquid matter float to the top.
  • the liquid matter begins to flow through the opening 125 designed therein, to the second portion 130 of the enclosure 110.
  • the first portion 120 will be substantially full of solid matter, while the second portion 130 of the enclosure 110 will primarily contain the liquid matter.
  • rpm revolutions per minute
  • the rpm of the flighting is intentionally kept slow.
  • the flighting has an rpm of about 15 or less.
  • an rpm of 12 or less provides advantageous results.
  • an rpm of 8 or less provides superior results .
  • the liquid matter can be easily removed from the first portion 120 of the enclosure 110 without further contaminating the solid matter.
  • the solid matter that exits the top of the auger 150 tends to be only slightly damp.
  • this solid matter need not be decontaminated or reconditioned before being reused or introduced into the environment. Accordingly, the expense associated with this decontamination or reconditioning may be spared .
  • the backflow collection system 500 includes a collection receptacle 510.
  • the collection receptacle 510 is similar, in many ways to the collection receptacle 100 illustrated and discussed above. Accordingly, no further discussion is needed.
  • the backflow collection system 500 further includes a collection vessel 520 coupled to an auger 560.
  • the collection vessel 520 in the illustrated embodiment, is configured as a vertical collection vessel. Such a configuration may be used to further help separate the solid and liquid matter from the gasses.
  • the collection vessel 520 in one embodiment, includes an upper section 523 and a lower section 528.
  • the lower section 528 in this embodiment, includes a side opening 530, while the upper section includes a discharge port 535.
  • the side opening 530 in this embodiment, is configured to receive backflow from an oil/gas well.
  • the side opening 530 might comprise a pipe and flange configured to couple to an oil/gas well and receive backflow therefrom.
  • the side opening 530 may be positioned at various different heights along the collection vessel 520. If the side opening 530 is positioned to near the bottom of the collection vessel 520, solid matter entering the collection vessel 520 may plug the side opening 530. In contrast, if the side opening 530 is positioned to near the top of the collection vessel 520, solid and liquid matter entering the collection vessel 520 may be pushed out the discharge port 535.
  • the discharge port 535 in the illustrated embodiment, is configured to discharge pressurized gas received from the backflow from the oil/gas well from the collection vessel.
  • One particular gas that may be discharged, and burned as it exits the discharge port 535 is hydrogen sulfide.
  • the auger 560 in the illustrated embodiment, is coupled proximate the lower section 528 of the collection vessel 520.
  • the augur 560 in this embodiment, is configured to receive the solid and liquid matter from a bottom opening 540 in the lower section 528 of the collection vessel 520.
  • the auger 560 is configured to remove at least a portion of the solid and liquid matter from the collection vessel 520 while allowing the gasses to remain within the collection vessel 520, or alternatively exit the discharge port 535 in the upper end of the upper section 523 of the collection vessel 520.
  • the auger may include a hoist 565, for example an electric hoist, to raise and lower the auger 560.
  • Bottom walls of the lower section 528 of collection vessel 520 may be slanted (e.g., from vertical) to assist the solid matter in exiting the bottom opening 540 into the auger 560.
  • the bottom walls of the lower section 528 might slant at an angle of at least about 45 degrees from vertical.
  • bottom walls of the lower section 528 might slant at an angle of at least about 70 degrees from vertical.
  • a vibration mechanism 550 may be coupled to at least one of the collection vessel 520 or the auger 560.
  • the term "vibration mechanism”, as used herein, encompasses any device capable of providing vibrations to the collection vessel 520 in such a way as to assist the solid material from exiting the collection vessel 520 and entering the auger 560.
  • the vibration mechanism 550 in this embodiment, is configured to assist the auger 560 receive solid matter from the bottom opening 540 in the lower section 528 of the collection vessel 520.
  • the vibration mechanism 550 is coupled to the lower section 528 of the collection vessel 520. Nevertheless, the vibration mechanism 550 could also be coupled to the auger 560.
  • the collection vessel 520 further includes abrasion plate 545 located on an opposing side of the collection vessel 520 as the side opening 530.
  • the abrasion plate 545 is configured to receive the brunt of the abrasion/force of the solid and liquid matter as it enters the collection vessel 520.
  • the abrasion plate 545 is an additional feature added to a typical collection vessel.
  • the abrasion plate 545 is replaceable.
  • a second side opening could be included within the collection vessel, the second side opening directly opposing the side opening 530.
  • the abrasion place 545 could be attached to the second side opening. Accordingly, the abrasion place could be easily replaced when needed.
  • the collection vessel 520 may additionally include a sight liquid level indicator 557.
  • the backflow collection system 500 may further include a gas buster 570.
  • the gas buster 570 in this embodiment, is configured to reduce a velocity of the solid and liquid matter exiting the oil/gas well and entering the collection vessel 520.
  • the gas buster 570 in the illustrated embodiment, couples directed to a flange associated with the side opening 530 in the collection vessel 520.
  • the gas buster 570 includes a first section 610 and a second section 620.
  • the first section 610 in this embodiment, includes a first cross-sectional area that is less than a second cross-sectional area of the second section 620.
  • the increasing cross-sectional area of the gas buster 570 e.g., as it approaches the collection vessel 520
  • the gas buster 570 only includes two steps in cross-sectional value, other embodiments may exist wherein three or more steps are used.
  • the gas buster 570 in the illustrated embodiment, further includes a first smaller pipe 630 that is encompassed by a second larger pipe 640.
  • the first smaller pipe 630 in the illustrated embodiment, includes a plurality of openings 635 spaced along a length thereof. In fact, in the embodiment of Fig. 6, the openings 635 are sequentially spaced and rotated along the length of the first smaller pipe 630.
  • the backflow collection system 500 in the illustrated embodiment, further includes a choke manifold 580 positioned between the side opening 530 in the collection vessel 520 and the oil/gas well.
  • the choke manifold 580 in this embodiment, is configured to reduce a volume of the solid and liquid matter exiting the oil/gas well and entering the collection vessel 520.
  • the backflow collection system 500 may further include a high pressure sand trap 590 positioned between the side opening 530 in the collection vessel 520 and the oil/gas well.
  • the high pressure sand trap 590 in this embodiment, is configured to remove a portion of the solid matter exiting the oil/gas well prior to entering the collection vessel 520.
  • Those skilled in the art understand the various different high pressure sand traps 590 that might be used and remain within the purview of the present disclosure.
  • the collection vessel 520 and the auger 560 are position on a movable trailer 595.
  • the gas buster 570, the choke manifold 580 and the high pressure sand trap 590 are also located on the movable trailer 595.
  • each of the collection vessel 520, auger 560, gas buster 570, choke manifold 580 and high pressure sand trap 590 are configured to transition from an operational positions to transit positions on the movable trailer.
  • FIG. 7 illustrated are the collection vessel 520, auger 560, gas buster 570, choke manifold 580 and high pressure sand trap 590 in their transit positions.
  • the collection vessel 520, auger 560, gas buster 570, choke manifold 580 and high pressure sand trap 590 may pivot to transition from the operational position to the transit position.
  • Other mechanisms could also be used to help the collection vessel 520, auger 560, gas buster 570, choke manifold 580 and high pressure sand trap 590 transition from the operational position to the transit position .
  • a backflow collection system such as the backflow collection system of Figs. 5-7, may be used to reclaim backflow from a wellbore. This process may begin by collecting solid and liquid matter from the wellbore using the backflow collection system. As the solid and liquid matter, as well as the gasses, enter the collection vessel, the auger may be operated in a manner to remove at least a portion of the solid matter from the collection vessel, while at the same time pressurized gas exiting the discharge port is burned.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

La présente invention se rapporte à un système de collecte d'écoulement de retour et à un procédé permettant leur récupération d'un puits de forage. Le système de collecte d'écoulement de retour comprend, dans un mode de réalisation, un récipient de collecte qui comporte une section supérieure et une section inférieure, le récipient de collecte comportant une ouverture latérale configurée pour recevoir l'écoulement de retour d'un puits de pétrole/gaz, ainsi qu'un orifice d'évacuation situé à proximité d'une extrémité supérieure de la section supérieure et configuré pour évacuer le gaz sous pression du récipient de collecte. Le système de collecte d'écoulement de retour comprend en outre, dans ce mode de réalisation, une tarière couplée à proximité de la section inférieure du récipient de collecte, la tarière étant configurée pour recevoir les matières solides et liquides depuis une ouverture inférieure formée dans la section inférieure du récipient de collecte, et, lors de son élévation, pour enlever au moins une partie des matières solides et liquides du récipient de collecte, le récipient de collecte étant conçu de telle sorte que, lorsqu'un fluide est contenu à l'intérieur de ce dernier, il fasse office de joint étanche au liquide/gaz afin d'empêcher la sortie du gaz sous pression à travers l'ouverture inférieure formée dans la section inférieure du récipient de collecte.
PCT/US2014/010488 2013-01-07 2014-01-07 Système de collecte d'écoulement de retour et procédé permettant leur récupération Ceased WO2014107724A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2897396A CA2897396C (fr) 2013-01-07 2014-01-07 Systeme de collecte d'ecoulement de retour et procede permettant leur recuperation
RU2015132893A RU2015132893A (ru) 2013-01-07 2014-01-07 Накопительная система и способ утилизации для обратного потока
MX2015008771A MX360937B (es) 2013-01-07 2014-01-07 Sistema de colecta de contraflujo, y método para reclamar dicho contraflujo.
CN201480008824.1A CN105189913A (zh) 2013-01-07 2014-01-07 回流收集系统和用于回收该回流的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/735,879 US9597614B2 (en) 2009-01-09 2013-01-07 Backflow collection system and method for reclaiming the same
US13/735,879 2013-01-07

Publications (2)

Publication Number Publication Date
WO2014107724A2 true WO2014107724A2 (fr) 2014-07-10
WO2014107724A3 WO2014107724A3 (fr) 2014-12-24

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CN (1) CN105189913A (fr)
CA (1) CA2897396C (fr)
CL (1) CL2015001931A1 (fr)
MX (1) MX360937B (fr)
RU (1) RU2015132893A (fr)
WO (1) WO2014107724A2 (fr)

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CN108190557B (zh) * 2018-02-26 2024-06-11 上海澳傅旭海洋装备技术有限公司 一种埋刮板卸船机的主动取料头装置
CN110125017B (zh) * 2019-04-22 2020-12-25 温州勇博科技有限公司 一种槟榔分选的回流装置及槟榔的回收方法

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MX360937B (es) 2018-11-21
CA2897396C (fr) 2021-02-16
CA2897396A1 (fr) 2014-07-10
MX2015008771A (es) 2016-03-21
RU2015132893A (ru) 2017-02-09
CL2015001931A1 (es) 2016-01-15
CN105189913A (zh) 2015-12-23
WO2014107724A3 (fr) 2014-12-24

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