Abrégé

Disclosed is a petroleum deposition liquid suction device with a high degree of freedom. The petroleum deposition liquid suction device comprises a first suction pipe (1) and a second suction pipe (2), wherein the first suction pipe (1) is coaxial with the second suction pipe (2); the outer wall of the first suction pipe (1) is provided with a rubber seal ring (3); and the first suction pipe (1) and the second suction pipe (2) form a piston mechanism by means of the rubber seal ring (3). The suction device is not limited by the placement position of the device during use, and pipes can be arranged in a winding and narrow area.

Classes IPC  ?

• E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
• E21B 21/00 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur

Abrégé

A digging device for oil exploration, comprising a frame assembly and a digging drive assembly. The frame assembly comprises a platform (1) and support legs (2) fixedly connected to the platform (1); the digging drive assembly comprises a first connecting plate (3), a second connecting plate (4), a first oil cylinder (5), and a second oil cylinder (6); one end of the first connecting plate (3) is movably connected to one end of the second connecting plate (4); and a slider (7) is movably connected to the other end of the first connecting plate (3). The device has a simple structure, can be obtained by self-made, and can be used for a long time, without needing to pay high labor wages, so that costs are saved.

Classes IPC  ?

• E02F 5/20 - Machines pour creuser d'autres trous dans le sol pour trous verticaux

Abrégé

A circulating constant-flow constant-pressure metering pump device, comprising a closed kettle (1). The circulating constant-flow constant-pressure metering pump device further comprises a first piston pump (2), a second piston pump (3), a first valve (4), a second valve (5), a third valve (6), and a fourth valve (7); the first valve (4) and the second valve (5) are respectively in communication with a liquid inlet and a liquid outlet of the first piston pump (2); the third valve (6) and the fourth valve (7) are respectively in communication with a liquid inlet and a liquid outlet of the second piston pump (3). Said device is able to simulate the fluidity of a high-pressure liquid while forming a high pressure within the kettle, thereby simulating working conditions of underground liquid in a more realistic manner, facilitating the progress of scientific research and experimentation on oil exploration.

Classes IPC  ?

• F04B 23/06 - Combinaisons de plusieurs pompes les pompes étant toutes du type à déplacement positif alternatif
• F04B 49/22 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes par clapets
• F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées

Abrégé

Disclosed is a three-dimensional physical simulation experiment device for microbial enhanced oil recovery, comprising a pretreatment module, a fluid module, a model body assembly, an output liquid metering module, a computer measurement and control module, a power supply module and an experiment auxiliary module, wherein the model body assembly comprises a piston pressing plate (1), a main piston (2), a compression piston (3), a high-pressure chamber (4), and a lower pressing plate (5), with the main piston (2) being fixedly connected to the piston pressing plate (1), the high-pressure chamber (4) being fixedly connected to the lower pressing plate (5), the main piston (2) being in piston cooperation with the high-pressure chamber (4), and the compression piston (3) being in piston cooperation with the high-pressure chamber (4). By means of the piston cooperation between the compression piston (3) and the high-pressure chamber (4) and by filling an air inlet (11) with high pressure air, the closing and opening between the main piston (2) and the lower pressing plate (5) are implemented. The experiment device introduces air, water, oil and sand to the model body assembly, and provides a high pressure, provides a constant temperature by means of a thermotank, and introduces an appropriate microorganism, so as to realistically reproduce underground conditions to simulate the influence of the microbial enhanced oil recovery on petroleum exploitation.

Classes IPC  ?

• E21B 43/22 - Emploi de produits chimiques ou à activité bactérienne

Abrégé

A fracturing fluid friction tester, comprising an injection system, a simulation system, a constant-temperature system, a pressure measurement system, a differential pressure measurement system, a viewing window (9), a flow meter (10), a pressure protection system and a data collection and processing system. The tester has the following advantages: 1. on-site construction displacement is simulated; 2. an experiment can be conducted under the condition of the relatively high viscosity of a fluid; 3. the flow condition of an on-site fracturing fluid in a pipe is simulated; 4. continuous testing is achieved; 5. a plurality of testing results can be obtained by means of one test, thus saving time; 6. a test fluid circulates in the pipe in a manner of linear propulsion, and a fluid structure is not destroyed; 7. an over-temperature and over-pressure alarm apparatus and a shut-down apparatus are arranged on the test pipe to ensure safe testing; and 8. a high-precision differential pressure sensor (13), a pressure sensor (12), the flow meter (10) and a precise temperature controller are used to ensure the reliability of a testing result.

Classes IPC  ?

• G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement