CN103807138A - Reciprocating piston type sucking pump - Google Patents

Reciprocating piston type sucking pump Download PDF

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Publication number
CN103807138A
CN103807138A CN201410047049.2A CN201410047049A CN103807138A CN 103807138 A CN103807138 A CN 103807138A CN 201410047049 A CN201410047049 A CN 201410047049A CN 103807138 A CN103807138 A CN 103807138A
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piston
check valve
cylinder
pressure
piston type
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CN201410047049.2A
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Chinese (zh)
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单月伟
刘伟
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Individual
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Abstract

A reciprocating piston type sucking pump is characterized in that the reciprocating piston type sucking pump comprises a gas suction device, a connecting base and a connecting device, one end of the gas suction device is fixedly connected with the connecting base, and the other end of the gas suction device is hinged to a connector of the connecting device. The connecting base is fixedly connected with a big frame of a pumping unit, the connecting device is fixedly connected with a big arm of the pumping unit, one end of a connecting pipeline is connected into an oil layer, and the other end of the connecting pipeline is connected with a natural gas collection device in a sealed mode. The pumping unit drives a piston to reciprocate while reciprocating, negative pressure is formed in an air cylinder when the piston does not reach starting differential pressure of a check valve in the rising process, the check valve in a gas inlet pipeline is opened to pump natural gas in the oil layer into the air cylinder when the piston reaches the starting differential pressure of the check valve, and the check valve of the gas inlet valve is closed when the piston moves to a stroke peak and the differential pressure on the two sides of the check valve is smaller than a set value. The natural gas in the air cylinder is compressed when the piston moves downward from the peak, and the check valve is opened when pressure reaches the starting pressure of the check valve, and the natural gas in the air cylinder is discharged into the natural gas collection device.

Description

Reciprocating piston type extraction pump
Technical field
The present invention relates to petroleum production machinery, is a kind of reciprocating piston type extraction pump, gathers the rock gas that crude oil is carried secretly for crude oil extraction time.
Background technique
At present, the oil extraction great majority of China are all also to adopt traditional oil production method, adopt the pumping unit that is commonly called as the machine of kowtowing to recover the oil, in the process of recovering the oil, the rock gas of carrying secretly in oil reservoir is extracted together with crude oil, and crude oil enters in oil catcher, and rock gas is discharged in atmosphere environment, the problem existing is: the rock gas of carrying secretly in crude oil is extracted together with crude oil, and crude oil crude oil production efficiency is low, and rock gas is discharged into and in atmosphere environment, has caused waste.
Summary of the invention
Technical problem to be solved by this invention is: the shortcoming that overcomes prior art, a kind of reciprocating piston type extraction pump is provided, in crude oil extraction, gather the rock gas of carrying secretly in crude oil, improved crude oil production efficiency, gather again the rock gas of carrying secretly in crude oil simultaneously, thereby take full advantage of petroleum resources.
The scheme of technical solution problem of the present invention is: a kind of reciprocating piston type extraction pump, is characterized in that: it comprises air extractor, connecting base and connection set, and base and the connecting base of described air extractor are connected, and the piston of air extractor and the joint of connection set are hinged.
The structure of described air extractor is: comprise cylinder, base, piston and connecting pipeline, described cylinder and base are connected, and piston and cylinder are slidably connected, and connecting pipeline is connected with cylinder seal.
Described connecting pipeline comprises air inlet pipeline and outlet pipe, described air inlet pipeline and outlet pipe have identical structure and annexation, include gas transmission line and one-way valve, one end of described air inlet pipeline is connected with cylinder seal, the other end is connected in oil reservoir, described outlet pipe one end is connected with cylinder seal, the other end and rock gas gathering-device are tightly connected, and one-way valve is tightly connected respectively on air inlet pipeline and outlet pipe.
The structure of described connection set is: it comprises hanger, link, joint and bearing pin, and described hanger and link are connected, and hanger and joint are hinged by bearing pin, and joint and piston are connected.
Reciprocating piston type extraction pump of the present invention, large of its connecting base and pumping unit are connected, the large arm of connection set and pumping unit is connected, connecting pipeline one end connects in oil reservoir, the other end rock gas gathering-device that is tightly connected, utilize the to-and-fro motion of pumping unit to carry out work as power, without loading extra power.When pumping unit to-and-fro motion, drive piston of the present invention to pump, in piston uphill process, in the time not reaching one-way valve starting differential pressure, form negative pressure in cylinder, in the time that the gas pressure in oil reservoir and inner pressure of air cylinder difference reach one-way valve starting differential pressure, the one-way valve unlatching of air inlet pipeline, now, the rock gas in pool is pumped in cylinder; In the time that piston movement arrives cylinder stroke summit, when one-way valve pressure at both sides difference is less than setting value, the closed check valve of air inlet pipeline.When piston is moved downward by summit, the rock gas in cylinder is compressed, and in the time that pressure reaches one-way valve starting differential pressure, one-way valve is opened, and the rock gas in cylinder is discharged in rock gas gathering-device.Have simple in structurely, without loading extra power, improving oil extraction efficiency, make full use of the advantage of petroleum resources.
Accompanying drawing explanation
Fig. 1 is the structural representation of reciprocating piston type extraction pump of the present invention;
Fig. 2 is the structural representation that reciprocating piston type extraction pump of the present invention is connected with pumping unit;
In figure: 1 connecting base, 2 connecting pipelines, 3 bases, 4 air extractors, 5 cylinders, 6 pistons, 7 joints, 8 hangers, 9 links, 10 connection sets, 11 one-way valves, large of 12 pumping units, the large arm of 13 pumping unit.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
With reference to Fig. 1~Fig. 2, reciprocating piston type extraction pump of the present invention, it comprises air extractor 4, connecting base 1 and connection set 10, and base 3 and the connecting base 1 of described air extractor 4 are connected, and the piston 6 of air extractor 4 is hinged with the joint 7 of connection set 10.The structure of described air extractor 4 is: it comprises cylinder 5, base 3, piston 6 and connecting pipeline 2, and described cylinder 5 is connected with base 3, and piston 6 is slidably connected with cylinder 5, and connecting pipeline 2 is tightly connected with cylinder 5.Described connecting pipeline 2 comprises air inlet pipeline and outlet pipe, described air inlet pipeline and outlet pipe have identical structure and annexation, include gas transmission line and one-way valve 11, one end of described air inlet pipeline and cylinder 5 are tightly connected, the other end is connected in oil reservoir, described outlet pipe one end and cylinder 5 are tightly connected, the other end and rock gas gathering-device are tightly connected, and one-way valve 11 is tightly connected respectively on air inlet pipeline and outlet pipe.The structure of described connection set 10 is: it comprises hanger 8, link 9, joint 7 and bearing pin, and described hanger 8 is connected with link 9, and hanger 8 is hinged by bearing pin with joint 7, and joint 7 is connected with piston 6.The commercially available prod that one-way valve 11 of the present invention is prior art.
The present embodiment reciprocating piston type extraction pump, its connecting base 1 is connected with large 12 of pumping unit, connection set 10 is connected with the large arm 13 of pumping unit, connecting pipeline 2 one end connect in oil reservoir, the other end rock gas gathering-device that is tightly connected, utilize the to-and-fro motion of pumping unit to carry out work as power, without loading extra power.When pumping unit to-and-fro motion, drive piston 6 of the present invention to pump, in piston 6 uphill process, in the time not reaching poor one-way valve 11 starting differential pressure for 2kg of pressure at both sides, the interior formation negative pressure of cylinder 5, in the time that the gas pressure in oil reservoir and cylinder 5 internal pressure differences reach poor one-way valve 11 starting differential pressure for 2kg of pressure at both sides, the one-way valve 11 of air inlet pipeline is opened, now, the rock gas in pool is pumped in cylinder 5; In the time that piston 6 moves to cylinder 5 stroke summit, when one-way valve 11 pressure at both sides differences are less than the setting value of 0.5kg, the one-way valve 11 of air inlet pipeline is closed.When piston 6 is moved downward by summit, the rock gas in cylinder 5 is compressed, and in the time that pressure reaches poor one-way valve 11 starting differential pressure for 2kg of pressure at both sides, one-way valve 11 is opened, and the rock gas in cylinder 5 is discharged in rock gas gathering-device.The operation cycle of reciprocating piston type extraction pump is identical with the operation cycle of pumping unit, and the time was 9 seconds.
The working efficiency of the present embodiment is calculated as follows:
1), the interior maximum vacuum calculation of pressure of cylinder 5:
Set air inlet pipeline one-way valve 11 and close, the default effective working stroke of cylinder 5 is 1000mm, all leaves up and down 100mm safe distance, and in former cylinder 5 bodies, residual gas volume has increased 9 times, from formula
Figure 349219DEST_PATH_IMAGE001
In formula:
Figure 695886DEST_PATH_IMAGE002
-pressure,
Figure 108413DEST_PATH_IMAGE003
-volume,
Figure 136412DEST_PATH_IMAGE004
-molal quantity (amount of substance),
Figure 881776DEST_PATH_IMAGE005
-constant, -medium temperature.
?
Figure 33589DEST_PATH_IMAGE004
be worth in certain situation, one-way valve 11 is closed, and raw-gas volume has increased 10 times, pressure decreased 10 times, be about 0.1kg pressure; In this process, the variation of medium temperature is negligible, and in the time that the rock gas gas pressure in pool is greater than 2.1kg, now the present invention plays the effect of accelerating to extract rock gas;
2) if do not adopted the present invention, directly rock gas is discharged in atmosphere environment, atmospheric pressure is about 1kg, by formula , known
Figure 963685DEST_PATH_IMAGE002
=2.1-1=1.1 kg;
Adopt the present invention,
Figure 324259DEST_PATH_IMAGE002
=2.1-0.1=2 kg;
Owing to having adopted the present invention, the in the situation that of same volume, gas pressure difference has increased 2/1.1=1.8 doubly, therefore by formula
Figure 711378DEST_PATH_IMAGE001
within an operation cycle, extracted the rock gas of 0.8 times of effective travel more, many extraction of operation cycle gas flow is:
Figure 143496DEST_PATH_IMAGE007
=0.8 × 3.14 × 0.12 × 1=0.025m3, i.e. the 25L gas of extracting out more;
Operation cycle of the present invention every day is: 24 × 3600 ÷ 9=9600
Every day, many extracting gases total amount was: 25 × 9600=240000L.

Claims (4)

1. a reciprocating piston type extraction pump, is characterized in that: it comprises air extractor, connecting base and connection set, and base and the connecting base of described air extractor are connected, and the piston of air extractor and the joint of connection set are hinged.
2. reciprocating piston type extraction pump as claimed in claim 1, is characterized in that: described air extractor comprises cylinder, base, piston and connecting pipeline, described cylinder and base are connected, and piston and cylinder are slidably connected, and connecting pipeline is connected with cylinder seal.
3. reciprocating piston type extraction pump as claimed in claim 2, it is characterized in that: described connecting pipeline comprises air inlet pipeline and outlet pipe, described air inlet pipeline and outlet pipe have identical structure and annexation, include gas transmission line and one-way valve, one end of described air inlet pipeline is connected with cylinder seal, the other end is connected in oil reservoir, described outlet pipe one end is connected with cylinder seal, the other end and rock gas gathering-device are tightly connected, and one-way valve is tightly connected respectively on air inlet pipeline and outlet pipe.
4. reciprocating piston type extraction pump as claimed in claim 1, is characterized in that: it comprises hanger, link, joint and bearing pin described connection set, described hanger and link are connected, and hanger and joint are hinged by bearing pin, and joint and piston are connected.
CN201410047049.2A 2014-02-11 2014-02-11 Reciprocating piston type sucking pump Pending CN103807138A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN103807138A true CN103807138A (en) 2014-05-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108443107A (en) * 2018-02-13 2018-08-24 王炯锋 A kind of efficient extraction natural-gas energy-saving equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2388202Y (en) * 1999-08-18 2000-07-19 王成兵 Oil-field natural gas tail gas recovery device
US20020174983A1 (en) * 2001-04-06 2002-11-28 Swoyer Gerald L. Gas operated automatic, liquid pumping system for wells
CN200975337Y (en) * 2006-11-14 2007-11-14 王少华 Plunger type unpowered suction device
CN202000970U (en) * 2011-01-25 2011-10-05 吴昊 Natural gas collecting device for production well of oil pumping unit
CN202883333U (en) * 2012-11-07 2013-04-17 西南石油大学 Novel oil well pump special for liquid draining and gas production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2388202Y (en) * 1999-08-18 2000-07-19 王成兵 Oil-field natural gas tail gas recovery device
US20020174983A1 (en) * 2001-04-06 2002-11-28 Swoyer Gerald L. Gas operated automatic, liquid pumping system for wells
CN200975337Y (en) * 2006-11-14 2007-11-14 王少华 Plunger type unpowered suction device
CN202000970U (en) * 2011-01-25 2011-10-05 吴昊 Natural gas collecting device for production well of oil pumping unit
CN202883333U (en) * 2012-11-07 2013-04-17 西南石油大学 Novel oil well pump special for liquid draining and gas production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108443107A (en) * 2018-02-13 2018-08-24 王炯锋 A kind of efficient extraction natural-gas energy-saving equipment

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Application publication date: 20140521