baber/WOPTO huggingface dataset:
Patent KR-960000927-B1 (KR)
Title: High density bipolar 3 code
Inventor: CHOE HA-LIM
IPC: H04B1/06
Filed: 1992-12-26
Granted: 1996-01-15
Abstract: The device comprises a clock generating unit which generates standard clocks, a pseudo signal generating unit which generates temporary signals to be used standard data necessary to generate errors, an error signals generating unit which generates error signals by clock signals from the clock generating unit, an error ratio selection and displaying unit which announces the selected error ratio by using a light emitting diode, an error signal inserting selection unit which determines the insertion of the error signals of the selected error ratio, a code converting unit which converts arbitrary signals to HDB3 code, and an output unit which converts unipolar HDB3 code to bipolar data and matches with transfer lines.
Patent KR-960003546-B1 (KR)
Inventor: DE OLIVEIRA BANDARRA JOAO JOSE
IPC: C22B3/16
Filed: 1992-12-26
Granted: 1996-03-15
Abstract: 내용 없음.
Patent KR-970000402-B1 (KR)
Title: Transparent polyamide polymer
Inventor: HAN BYUNG-KIL
IPC: D01F6/60
Filed: 1992-12-28
Granted: 1997-01-09
Abstract: Polyamide is prepared by copolymerizing epsilon-caprolactam  with 5-8 wt. %  of tetramethylolmethane. In an example, a mixture of epsilon-caprolactam containing 10 wt. % of water, 0,25 acetic acid and 5 wt. % of tetramethylol-methane is polymerised in nitrogen gas in an autoclave by conventional polymerization method. Relative viscosity and the degree of crystallinity of obtained polyamide is 2.40 and 28 % respectively when 5 wt.% of tetra-methylolmethane is mixed with epsilon-caprolactam.
Patent KR-100210431-B1 (KR)
Inventor: FRANK PASSARELLI
IPC: G01G11/00
Filed: 1990-10-29
Granted: 1999-07-15
Abstract: 음파송신 트랜스듀서 및 음파수신 트랜스듀서를 이용하는 구조물상의 중량을 측정하는 방법 및 장치. 
     송신트랜스듀서와 수신트랜스듀서 사이의 음파전달의 경과시간은 트랜스듀서가 고정설치되는 구조물내의 하중지지부재상의 하중량에 따라서 변화한다. 
     경과시간을 측정하여 이것을 컴퓨터내의 알고 있는 중량대 경과시간 커브에 비교함으로써, 그 구조물에 대한 현재의 중량이 측정될 수 있다.
Patent KR-100202753-B1 (KR)
Inventor: PICCIRILLO MARCELLO
IPC: D03J1/14
Filed: 1991-10-22
Granted: 1999-06-15
Abstract: 기계는 경사비임용 경사비임트럭(2) 상승장치(4)와 경사층(KF)을 클램핑하도록 형성된 통경프레임(5)을 포함하고 통경프레임(5)의 통경은 통경기로부터 분리되어 일어나고 통경후 통경기로 운반된다. 통경프레임(5)은 상승장치(4)에 탈착가능하도록 장착되고 통경전 통경기의 세로방향으로 탈착가능하도록 배열된 통경기로 이전된다. 통경작동 중 변위될 때 통경프레임(5)은 상승장치(4)와 경사비임트럭(2)으로부터 분리되어 구동된다.
Patent KR-960002987-B1 (KR)
Inventor: MARABOTTO EDUARDO JEORGE
IPC: F16B5/04
Filed: 1990-11-05
Granted: 1996-03-02
Abstract: 내용 없음.
Patent KR-0145514-B1 (KR)
Title: Disposable sanitary articles
Inventor: SCHECHTMAN LEE ARNOLD
IPC: A61F13/511
Filed: 1990-12-07
Granted: 1998-07-15
Abstract: Disposable sanitary garments comprise topsheet and/or backsheet materials prepared from polymers based on dioxanone. Diapers, sanitary napkins, pantiliners, and the like, prepared from the foregoing materials are disclosed.
Patent KR-100270154-B1 (KR)
Title: Process for the preparation of copolymer with hydroxy
Inventor: WAMPRECHT CHRISTIAN
IPC: C08F283/01
Filed: 1993-03-19
Granted: 2000-10-16
Abstract: A process for the solvent-free production of hydroxy-functional copolymers by copolymerization of unsaturated monomers in a mixture of a polyester component and an unsaturated ester component as reaction medium, the use of the hydroxy-functional copolymers so obtained as binder component in polyurethane powder coatings, a powder coating based on these copolymers and its use for coating any heat resistant substrates.
Patent KR-960007856-B1 (KR)
Inventor: ADACHI TAKESHI
IPC: H04N9/44
Filed: 1993-03-24
Granted: 1996-06-12
Abstract: 내용 없음.
Patent KR-960003647-B1 (KR)
Title: Method of taper etching
Inventor: SUNG KANG-HYUN
IPC: G03F7/26
Filed: 1993-03-25
Granted: 1996-03-21
Abstract: The surface of a base layer is processed by a plasma to form a gradient at the edge of a base layer. The method comprises the steps of: (A) forming a base layer(2) on a subtracter(1); (B) forming a damage layer(5) by processing the surface of the base layer(2) by plasma; (C) forming a photomask(6) on the damage layer(5) and baking to melting the edge of the mask(6); and (D) etching the damage layer(5) by using RIE etching method.
Patent KR-950003357-B1 (KR)
Title: Band pass filter
Inventor: SHIN YONG-HO
IPC: H03H11/04
Filed: 1993-05-19
Granted: 1995-04-10
Abstract: The filter removes the interference between master and slave devices, and has an automatic frequency adjust function. The filter includes an amplifier which amplifies positive feedback input signal, a 1st switch which connect to an external signal terminal, a band pass filter whoch has frequency characteristic, a 2nd switch, an oscillator, a frequency comparator, a counter, a latch, and a digital/analog converter.
Patent KR-950007409-B1 (KR)
Inventor: KURSCHNER LISA M
IPC: D06L4/70
Filed: 1993-06-09
Granted: 1995-07-10
Abstract: 내용 없음.
Patent KR-0128858-B1 (KR)
Title: Apparatus for deciding frame type
Inventor: SONG MIN-JIN
IPC: H04N19/103
Filed: 1993-08-25
Granted: 1998-04-10
Abstract: Disclosed is a coding mode determiner to variation of a displayed image in an image decoder.  The determiner(150) comprises a frame delayer(151), a display variation determiner(152), a mode determiner(153) and a switch(SW150).  The frame delayer(151) generates a prior frame according to a current display frame from a motion calculator(20).  The display variation determiner(152) determines whether the image is varied or not according to a prior frame from the frame delayer(151) and a current frame from the motion calculator(20).  The mode determiner(153) determines a decoding mode according to a signal from the display variation determiner(152), and outputs a signal corresponding to the decoding mode.  The switch(SW150) connects a frame rearranger(10) and a DCT(40) for encoding, and connects the subtracter(30) to the DCT(40).  Thereby, the decoding mode is able to be adaptively changed for good display quality.
Patent KR-960006402-B1 (KR)
Title: Complex karaoke vcr using monitor
Inventor: HONG JAE-KYU
IPC: G11B27/10
Filed: 1993-09-16
Granted: 1996-05-15
Abstract: The VCR appropriately mixes imge/audio signals recorded in a video tape with audio signals generated from an external microphone when playing the karaoke video tape. It comprises : an image signal processor(3) processing and generating the image signals on the video tape; an audio signal processor(4) processing and generating the audio signals on the video tape; a microphone signal processor(5) processing the signals input from the microphone(MIC); an on/off processor(6) processing external input signals; a micro computer(7) controlling the operations of the audio signal processor(4) and the microphone signal processor(5), and the on/off processor(6); a mixer(8) mixing the ouputs from the processors(4,5,6); a monitor(9) outputting the image signals of the processor(3) and the audio signals of the mixer(8).
Patent KR-950014336-B1 (KR)
Title: Image projection apparatus
Inventor: KU HUI-SUL
IPC: H04N9/31
Filed: 1993-09-16
Granted: 1995-11-24
Abstract: The apparatus for projecting the image as well as cooling the system with a filter fan includes a lamp(11) providing parallel light, a LCD(13) displaying the image signal, a spinning wheel type filter fan(14) having R,G,B colour filters(14B,G,R), and a projection lens(16) focussing the image on a screen(15). When the R,G,B colour filters placed at 120 deg. on the filter fan is rotated, the colours should be overlapped with neighbor filter during certain deg., but the angle for projecting only specific colour is extended two times rather than ordinary wheel type one.
Patent KR-100291133-B1 (KR)
Title: 빠찡꼬기의외부정보단자설치구조
Filed: 1993-09-28
Granted: 2001-11-22
Abstract: 본 발명은 파친코기의 외부 정보 다자 설치구조에 관한 것으로, 유기판에 중합 설치되는 기구판에 단자용 창공을 설치하고, 유기판측에 상기 단자용 창공에 대향위치시켜서 게임 내용에 대한 외부 정부 단자를 설치하여, 유기판측에서 상기 외부 정보 단자 기구판의 단자용 창공으로 부터 외부로 향하도록 하게 구성되며, 따라서, 상기 외부 정보단자와 홀 컴퓨터가 전기적으로 접속할 수 있어, 종래의 기구판의 중계기판과 유기판의 중계기연을 리드선으로 접속할 필요가 없어져 리드선의 잘못 배선의 제거 파친코기 조립작업의 능률을 올릴 수 있다.
Patent KR-100256931-B1 (KR)
Inventor: VUKOS JOHN P
IPC: A61F13/20
Filed: 1993-11-12
Granted: 2000-05-15
Abstract: 본 발명은 질구 또는 그의 인접 부위에 꼭맞도록 설계된 흡수체를 함유하는 픽업 모듈, 질구에서 떨어져서 배치되도록 설계된 흡수체를 함유하는 캐패시티 모듈, 및 흡수체로서 제공되어 있고 추가로 픽업 모듈로부터 캐패시티 모듈로 액을 이송시키기 위해 픽업 모듈과 캐패시티 모듈의 양자를 소통시키는 액 흡상 섬유를 포함하는 인터래비얼 위생 패드를 개시하고 있다. 액 흡상 섬유는 종방향으로 배향되어 있고 픽업 모듈보다는 캐패시티 모듈 내에 보다 큰 용적 밀도로 채워져 있다. 픽업 모듈은 액 투과성 커버를 갖고 있으나 캐패시티 모듈은 내부에 액을 수용할 수 있는 액 불투과성 배플을 갖는다. 캐패시티 모듈은 평평한 팬 형태를 가지며 초흡수체를 함유할 수 있다.
Patent KR-960016593-B1 (KR)
Title: Method for manufacturing thermoplastic resin powder
Inventor: JUNG HA-SIK
IPC: C08F6/22
Filed: 1993-12-01
Granted: 1996-12-16
Abstract: The resin powder is prepared by the method of the 1, 2 stages emulsion polymerizing a rubber polymer, unsaturated nitrile monomer and vinyl aromatic compound monomer and after treatment process to give a thermoplastic resin. Especially, an ion exchange water is introduced before carrying out after-treatment process toward the thermoplastic resin latex obtained by 1,2 stages to coagulate it. The thermoplastic resin powder has a good appearance and shock resistance.
Patent RO-119208-B1 (RO)
Title: Process for opening fields from hill base by open workings
Inventor: PREDOIU CONSTANTIN
IPC: E21C41/28
Filed: 2002-11-13
Abstract: The invention relates to a process for opening a field at the hill base by open working, used for open pit-mining a lignite field. According to the invention, the process for opening the fields at the hill base by open working, consists in that, by reaching a hill versant, at the pit base, there is carried out a route (c), made as a high-capacity excavator (1) advances, this route (c) being arranged in the lateral side of the pit, on level curves and inclined planes. Upon reaching some previously established levels of mining stages, the same excavator (1) carries out some circulating platforms (11) until there is performed a final platform (12), which is at the highest stage of the hill, afterwards there is excavated the last block of the hill (13) and, successively, each lower stage of sterile (9, 8, 7 and 6) by the successive descending of the excavator (1) on the circulating platforms (11) carried out upon climbing, until the volumes thereof are exhausted, afterwards there being performed the outcroppig of the lignite layers (a and b) by the open mining processes, known per se.
Patent RO-123257-B1 (RO)
Title: Electrolytic process and cell for preparing metal titanium and titanium alloys by electrochemical process
Inventor: SOARE VASILE
IPC: C22B9/187
Filed: 2006-03-29
Abstract: The invention relates to a process for preparing metal titanium and titanium alloys and to an electrolytic cell for applying said process. The claimed process consists in electrically reducing the titanium dioxide or a mixture of titanium dioxide with oxides of the alloying elements in an electrolyte bath, comprising calcium chloride and sodium chloride mixture, using a solid cathode made of titanium oxide or a mixture of oxides as a pressed-sintered cylinder, and a super dense graphite anode, the reduction of TiObeing carried out by the deoxidation thereof, and of the alloying metal oxides, respectively, and by the calciothermal reduction of oxides, the process taking place at a temperature of 700...750°C, a voltage of 2,0...3,0 V and an initial cathode current density of 0.2...0.3 A/cm, continuously decreasing. The claimed electrolytical cell comprises a tank manufactured of a ceramic crucible (2), of silicon and aluminium oxynitride with a circular orifice for mounting the support of the cathode (8) made of refractory stainless steel, the cathode (7) comprising TiOor a mixture of pressed oxides, the crucible being introduced in a housing (1) made of refractory stainless steel, which, at its base, it is joined with a retaining nut (10) with inside thread, wherein there is mounted a metal pipe (11) for supporting and positioning the cell on the vertical, the cell also containing a cylindrically shaped super dense graphite anode (5) and an anode holder pipe (3) for collecting and discharging the anode gas and for feeding with raw materials.
Patent RO-122257-B1 (RO)
Title: Friction wear-resistant filtering blanket
Inventor: NICULA GHEORGHE
IPC: B01D29/00
Filed: 2007-09-10
Abstract: The invention relates to a blanket meant to be used in industrial textile manufacture for making filtering products to be used under hard wearing stress conditions, such as in filtering installations for industrial chemical solutions, in the building materials industry etc. According to the invention, the blanket has polyamid 6 filament yarns of 940 dtex, 140 filaments and plain weave in warp, at warp yarn twist of 70...125 twists/m, and polyamid 6 filament yarns of 940x2 dtex and 140 filaments in weft, at a weft twist of 70...125 twists/m and 200...350 swirlings/m, the warp set being of 18...20 yarns/cm, while the weft set is of 8...10 yarns/cm, the resulting fabric having a weight of 370...430 g/m2, and a warp and weft strength of at least 400 daN/5 cm.
Patent RO-128407-B1 (RO)
Title: Ecological micro-hydroelectric power plant without water fall
Inventor: VLASE SERGHIE
IPC: F03B15/02
Filed: 2011-11-30
Abstract: The invention relates to an ecological micro-hydroelectric power plant without water fall for the plain areas of rivers which uses the energy of water and natural and artificial water vortices, in order to increase the efficiency thereof in relation to the extant micro-hydroelectric power plants. According to the invention, the micro-hydroelectric power plant comprises a support (17) equipped with two hydro turbines (9), a weir (4) for starting and stopping the hydro turbines (9) and for regulating the speed of some generators (10), a guard fence (19) for service operations, a confuser (2, 3) for protecting the hydro turbines (9) or for protecting and increasing the speed of the water flow, some floats (20), some guidings (21) for fixing the support (17) in the river bed, and also some generators (10), the hydro turbines (9) having two shafts (17) each, with some blades (5) arranged in two rows at 45°, the blades of the first row being arranged at 90° in relation to the blades of the other row, allowing the water (1) to flow as naturally as possible and taking over, at the same time, the mechanical energy of the water, and the blades (5) of the hydro turbines (9) are fixed only by some transmission chains (6), using the force of the water flow (1), the stoppers (11) and the guide rollers (13) both for locking the blades in the 45° position and for rotating the same, the two shafts (7) of the hydro turbines (9) being independent and thereby allowing the chains (6) to be mounted and tightened by means of left-hand and right-hand bolts (23), respectively.
Patent RS-54355-B1 (RS)
Inventor: BUETTELMANN BERND
IPC: C07D491/10
Filed: 2008-11-26
Abstract: Jedinjenje formule Iu kojoj:X je O ili NH;R1 je: fenil, piridinil ili pirimidinil, od kojih je svaki opciono supstituisan sa 1, 2 ili 3 halo,R2 je H ili CH3 ili CF3;R3 i R6 su H, halo, CN ili C1-7alkil;R4 je -C(O)-NRbRc, pri čemu Rb i Rc zajedno sa atomom azota za koji su vezaniformiraju heterociklilni deo, opciono supstituisan sa jednim ili više A;R5 je H, CF3, benziloksi, tetrahidropiridinil opciono supstituisan sa jednim metilom,-C(O)-NRbRc, pri čemu Rb i Rc su svaki nezavisno H, ili morfolinil;A je hidroksi, okso, C1-7alkil, C1-7alkoksi, C1-7haloalkil, C1-7hidroksialkil, halo ili CN;pri čemu se naziv "heterociklilni deo" odnosi na monovalentni zasićeni ili parcijalno zasićeni 3- do 7-člani monociklični ili 9- do 10-člani biciklični sistem prstena, pri čemu su jedan, dva, tri ili četiri atoma ugljenika prstena zamenjeni sa N, O ili S, i sa tačkom vezivanja na zasićenom ili parcijalno nezasićenom prstenu navedenog sistema prstena;ili njegova farmaceutski prihvatljiva so.Prijava sadrži još 13 patentnih zahteva.
Patent SA-110310327-B1 (SA)
Inventor: دي سورفيور نيلوف
IPC: E21B17/042
Filed: 2010-04-28
Abstract: طوق أداة اتصال سريع quick connect tool collar يتضمن جسم طوق متعدد الأجزاءmultipart collar body . دعامةrib تمتد شعاعياًradially للداخل من جسم الطوق radially وتجويف واحد أو أكثر في جسم الطوق عند سطح البعد الداخلي له. مظهر جانبي واحد أو أكثر عند سطح البعد الخارجي outside dimension surface لجسم الطوقcollar body.
Patent SA-117380275-B1 (SA)
Inventor: ABDULRAHMAN ABDULLAH MUSAED ALQUTAIAN
Filed: 2017-01-12
Abstract: يتعلق الاختراع الحالي بجهاز لمنع هدر الماء في حالة حصول خلل في العوامة الرئيسية المرتبطة بالمضخات الكهربائية، يستخدم في الخزانات الرئيسية أو خزانات المياه العلوية في المنازل أو خزانات المياه في المزارع المتعلقة بالمضخات الكهربائية، ويشتمل على قاطع كهربائي (7) متصل بذراع ينتهي بآنية (8) بجانب الخزان (3)، ويتصل بهذه الآنية أنبوب (6) لتمرير الماء الزائد من الخزان (3)، فعندما تتعطل العوامة (5) ويتوقف عملها في إطفاء المضخة (2) يزداد منسوب الماء بالارتفاع، من هنا ينساب الماء عبر الأنبوب (6) الموصل للآنية (8) فتزداد ثقلا بالجاذبية الأرضية، من خلالها يتم عمل القاطع الكهربائي (7) وفصل التيار الكهربائي عن المضخة (2) بشكل مؤقت لحين صيانة العوامة (5). الشكل (1).
Patent SA-515360327-B1 (SA)
Title: Gas turbine including belly band seal anti-rotation device
Inventor: BRIAN D NEREIM
Filed: 2015-04-23
Abstract: The present invention relates to seals for multistage turbomachines and, more particularly, to an anti-rotation structure for a seal provided between adjoining disks in a multistage turbomachine. In the present invention, there is provided asealing band is located in opposing sealing band receiving slots of adjacent turbine disks to seal an annular gap therebetween. A through hole is defined in one of the disks, wherein the through hole defines a longitudinal hole axis and extends to the sealing band receiving slot in the disk. At least one engagement feature is defined on the disk and extends laterally of the through hole, perpendicular to the longitudinal hole axis. A pin member extends through the hole and is positioned within the sealing band receiving slot passing through an opening in the sealing band for resisting movement of the sealing band relative to the disk. The pin member includes a laterally extending cooperating feature positioned in engagement with the engagement f
Patent SA-515370159-B1 (SA)
Title: Production Logging in Multi-Lateral Wells
Inventor: REX PASTRANA BURGOS
Filed: 2015-11-18
Abstract: Apparatus, systems, and methods operable to perform production logging of a lateral wellbore of a multi-lateral well. For example, a downhole tool is conveyed into a main wellbore of a multi-lateral well via coiled tubing. A component of the downhole tool is used to locate a lateral wellbore extending from the main wellbore, and then the downhole tool is conveyed into the lateral wellbore via the coiled tubing. Production logging data is then obtained with the downhole tool in the lateral wellbore. Fig. 1
Patent SA-516370421-B1 (SA)
Title: A process for the preparation of a propylene homopolymer
Inventor: AJELLAL NOUREDDINE
Filed: 2016-01-19
Abstract: A process for the preparation of a propylene homopolymer in a multistage polymerisation process in the presence of a single site catalyst, said process comprising: (I) in a slurry polymerisation step, polymerising propylene in the presence of said single site catalyst; and subsequently (II) in a gas polymerisation step polymerising propylene in the presence of catalyst and polymer from step (I) so as to form a propylene homopolymer; wherein said catalyst comprises (i) a metallocene complex of a Group 4 metal, said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron based cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.
Patent SA-516371808-B1 (SA)
Title: A Method of Priming a Drainage Apparatus for Siphoning Liquid, and a Drainage Apparatus
Inventor: BOON PEN CHUA
Filed: 2016-09-07
Abstract: A drainage apparatus 100, 300-800 for siphoning liquid between first and second reservoirs 102,104 is disclosed. In a first embodiment, the apparatus 100 includes a conduit arrangement having a first opening 112 disposed in the first reservoir 102, a second opening 114 disposed in the second reservoir 104 and a liquid injection inlet 106b12 arranged between the first and second openings 112,114, and a plurality of valves 108,110 for controlling flow of the liquid along the conduit arrangement. A method 200 for priming the drainage apparatus 100 comprises directing liquid into the conduit arrangement at 202 via the liquid injection inlet 106b12 to fill up most of the conduit arrangement as controlled by the valves' configuration; directing liquid into the first reservoir 102 at 206 to enable more liquid to enter into the conduit arrangement via the first opening 112 and at 208, to flood the conduit arrangement to form a continuous liquid flow path which extends from the first opening 1
Patent SA-517381377-B1 (SA)
Title: Process for in Situ Water Removal from an Oxidative Esterification Reaction Using a Coupled Reactor-Distillation System
Inventor: DMITRI A KRAPTCHETOV
Filed: 2017-04-22
Abstract: A process for continuously removing water in situ from an oxidative esterification reaction includes (a) conducting a first oxidative esterification reaction in a first reactor or reaction zone, wherein the total number of reactors or reaction zones is n and n is at least 2; (b) removing a crude product stream from the first reactor or reaction zone; (c) introducing the crude product stream to a distillation column to generate a column overheads stream and a column bottoms stream; (d) passing at least a portion of the columns bottoms stream to the product recovery zone; and (e) passing at least a portion of the column overheads stream to a subsequent reactor or reaction zone; and (f) repeating steps (a)-(e) for each subsequent reactor or reaction zone such that the number of distillation columns less than n, and wherein the at least a portion of the column overheads stream contains less than 1 weight percent (wt%) water based on the total weight of the at least a portion of the column
Patent SA-517381536-B1 (SA)
Title: Systems and methods for optimizing formation fracturing operations
Inventor: MUTLU OVUNC
Filed: 2017-05-15
Abstract: Systems and methods generate optimized formation fracturing operational parameters by iteratively optimizing bottom hole temperature design, perforation design, fracturing fluid pulse design, and proppant design based on formation properties, proppant properties, candidate selection, flow and geomechanical modeling, and engineering design, where the systems and methods as implemented on a digital processing unit. Fig. 1
Patent SA-517382296-B1 (SA)
Title: Oxidative Coupling of Methane Methods and Systems
Inventor: BIPINKUMAR PATEL
Filed: 2017-09-13
Abstract: The present disclosure provides natural gas and petrochemical processing systems including oxidative coupling of methane reactor systems that integrate process inputs and outputs to cooperatively utilize different inputs and outputs of the various systems in the production of higher hydrocarbons from natural gas and other hydrocarbon feedstocks. Fig 1a.
Patent SA-520411376-B1 (SA)
Title: Rapidly Cooling A Geologic Formation in Which A Wellbore Is Formed
Inventor: ASLAN BULEKBAY
Filed: 2020-02-15
Abstract: A first chamber is configured to be positioned within a wellbore. The first chamber includes a cooling fluid. A second chamber is positioned uphole of the first chamber. The first chamber and the second chamber are configured to be lowered to a position within the wellbore. The second chamber includes a cold source at a sub-zero temperature. The cooling fluid is configured to be cooled upon contacting the cold source. A separation member is positioned between the first chamber and second chamber. The separation member separates the cooling fluid and the cold source. An activation device is connected to the separation member. The activation device is configured to cause the separation member to allow the cold source to contact the cooling fluid. Fig 2A.