CN105422059A - Separate layer oil production device - Google Patents

Separate layer oil production device Download PDF

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Publication number
CN105422059A
CN105422059A CN201511027270.2A CN201511027270A CN105422059A CN 105422059 A CN105422059 A CN 105422059A CN 201511027270 A CN201511027270 A CN 201511027270A CN 105422059 A CN105422059 A CN 105422059A
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China
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oil pressure
pressure sensor
signal
outer tube
registration
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CN201511027270.2A
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Inventor
程强
贾学志
孙文波
胡培乐
杜海涛
姜松竹
高龙
刘洁琳
孙建勇
陈华
于胜利
周家祥
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Priority to CN201511027270.2A priority Critical patent/CN105422059A/en
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    • 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
    • E21B43/14—Obtaining from a multiple-zone well

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention discloses a separate layer oil production device which comprises an outer pipe, wherein a fixing block is arranged at the top end of the outer pipe; packers are arranged on the left side and the right side of the outer pipe respectively; a sand control pipe is arranged at the lower end of the packers; an oil pipe is arranged in the inner chamber of the outer pipe; the top end of the oil pipe is connected with the fixing block; the oil pipe is connected with a screw pump through a connecting block; fixing pieces are arranged on the left side and the right side of the screw pump respectively; the other ends of the fixing pieces are connected with the outer pipe; an oil pushing device is arranged at the bottom end of the screw pump, and is connected with a blind plug through a connecting post. According to the separate layer oil production device, through coordination of the screw pump and the oil pushing device, the capacity of the screw pump is large, and the waste condition in rotation can be avoided; the structure is simple, the mounting is convenient, the time consumption is less, the capital use amount is low, the device is relatively stable and quick, the performance is relatively excellent, and the work efficiency is relatively high; meanwhile, sand can be prevented from entering the outer pipe through the sand control pipe, and the device is safe and reliable.

Description

A kind of layering pumping unit
Technical field
The present invention relates to extracting device of oil technical field, be specially a kind of layering pumping unit.
Background technology
In field produces, multilayer position is a common phenomenon, in numerous layer positions, the profit content of liquid is different, in order to increase the benefit, in the production in oil field, need note ash, water shutoff agent, water layer is blocked by the modes such as chemical water shutoff, exploitation oil reservoir, to improve tar productivity, improve effects, but current layering pumping unit complex structure, area occupied is large, install too complicated, need to drop into a large amount of funds, inefficiency, the such as applying date, to be the 2010.07.06 patent No. be 201020258942.7 patent, comprise by beam hanger post, tubing string, divide flow string, deep well pump composition point adopts tubing string, although can be applicable to comparatively large in interlayer pressure difference or advance by leaps and bounds because of individual layer and cause normal point of the pumpingh well of sudden water flooding to adopt, but area occupied is large, install too complicated, need to drop into a large amount of funds, inefficiency.
Summary of the invention
The object of the present invention is to provide a kind of layering pumping unit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme: a kind of layering pumping unit, comprise outer tube, the top of described outer tube is provided with fixed block, the left and right sides of described outer tube is equipped with packer, the lower end of described packer is provided with sand-proof pipe, the inner chamber of described outer tube is provided with oil pipe, and the top of oil pipe is connected with fixed block, described oil pipe is connected with screw pump by contiguous block, the left and right sides of described screw pump is equipped with stator, and the other end of stator is connected with outer tube, the bottom of described screw pump is provided with and pushes away oily device, describedly push away oily device and be connected with blind plugging by joint pin,
Also arrange a control unit, it is arranged on the outside of outer tube;
In the inner side of outer tube, three oil pressure sensors are set from top to bottom respectively, in the inner side of the outer tube of oil pipe region, the first oil pressure sensor is set, the inner side of the outer tube in contiguous block and oil pipe join domain arranges the second oil pressure sensor, 3rd oil pressure sensor is set in the inner side of the outer tube of the lower end of screw pump, gathers the oil pressure information in region respectively and transfer in control unit;
One comparison module is set in described control unit, gathers the voltage and current value that each oil pressure sensor gathers respectively; It carries out calculation process to the electric current stored in all signal processing units and voltage acquisition signal;
Described comparison module calculates the second oil pressure sensor gathers numerical value registration P to the first oil pressure sensor according to the following equation 21, adopt the electric current of sensor collection and voltage signal to judge;
P 21 ( u 1 , i 1 ) = Σ u 2 , i 2 ( T ( u 2 , i 2 ) * I ′ ( u 1 + u 2 , i 1 + i 2 ) ) Σ u 2 , i 2 T ( u 2 , i 2 ) 2 * Σ u 2 , i 2 I ( u 1 + u 2 , i 1 + i 2 ) 2 - - - ( 1 )
In formula, P 21(u 1, i 1) represent the registration often organizing electric current and voltage signal, u 1and i 1represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 2and i 2represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation;
Described second oil pressure sensor is to the signal registration P of the first oil pressure sensor 21calculate according to the following equation;
P 21 ( u , i ) = Σ j = 1 M P 1 j ( u 1 , i 1 ) M - - - ( 2 )
In formula, M represents sampling group number, and j represents sequence number, P 1j(u 1, i 1) represent and often organize the second oil pressure sensor described in signal to the signal registration of the first oil pressure sensor;
Described comparing unit calculates the signal registration P of the second oil pressure sensor to the first oil pressure sensor 21, the 3rd oil pressure sensor is to the signal registration P of the first oil pressure sensor 31, the 3rd oil pressure sensor is to the signal registration P of the second oil pressure sensor 32;
Also comprise data storage in a control unit, it obtains registration threshold value from data storage, the coincidence angle value of described calculating gained and registration threshold value is compared, if described coincidence angle value is greater than threshold value, then concludes that heavy oil pressure exceeds threshold range; Described control unit controls to reduce oil pressure.
Preferably, the top of described fixed block is provided with centralizer.
Preferably, the both sides up and down of described screw pump are equipped with beam.
Preferably, the packer of the described outer tube left and right sides is all no less than two.
Preferably, the stator of the described screw pump left and right sides is all no less than two.
Preferably, described comparison module calculates the 3rd oil pressure sensor gathers numerical value registration P to the first oil pressure sensor according to the following equation 31, in the present embodiment, adopt the electric current of sensor collection and voltage signal to judge;
P 31 ( u 1 , i 1 ) = Σ u 3 , i 3 ( T ( u 3 , i 3 ) * I ′ ( u 1 + u 3 , i 1 + i 3 ) ) Σ u 3 , i 3 T ( u 3 , i 3 ) 2 * Σ u 3 , i 3 I ( u 1 + u 3 , i 1 + i 3 ) 2 - - - ( 3 )
In formula, P 31(u 1, i 1) represent the registration often organizing electric current and voltage signal, u 1and i 1represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 3and i 3represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation.
Compared with prior art, the invention has the beneficial effects as follows: this layering pumping unit, by screw pump with push away coordinating of oily device, the capacity of screw pump is large, there will not be the situation of waste when rotating, and structure is simple simultaneously, it is convenient to install, consuming time few, use of funds amount is low, more steadily fast, performance is also more outstanding, operating efficiency is higher, can prevent sand from entering in outer tube by sand-proof pipe simultaneously, safe and reliable.
The mode that the present invention adopts redundancy to judge, obtains the oil pressure in multizone in oil pipe, and ensure that oil pressure is in controllable amplitude, device security is ensured, and by programme-control, structure is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, centralizer, 2, fixed block, 3, push away oily device, 4, packer, 5, oil pipe, 6, sand-proof pipe, 7, contiguous block, 8, screw pump, 9, joint pin, 10, blind plugging, 11, outer tube, 12, stator, 13, beam.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the invention provides a kind of technical scheme: a kind of layering pumping unit, comprise outer tube 11, the top of described outer tube 11 is provided with fixed block 2, and the top of described fixed block 2 is provided with centralizer 1, centralizer 1 belongs to cementing tool, it manufactures simple, and overcoming the deficiency that sealing-off easily occurs former welded type centralizer, is a kind of centralizer 1 that can ensure well drilling and cementing quality, the left and right sides of described outer tube 11 is equipped with packer 4, and the packer 4 of described outer tube 1 left and right sides is two.
In petroleum production engineering, packer 4 is used for layering, and packer 4 is designed with oil recovery passage, when setting, piston bush is up, and oil recovery passage is opened, and after setting, upper stressor layer acts on dummy piston, upwards pushes away packing element, make deblocking pin from shearing forceduring deblocking, frictional force by packing element and sleeve pipe cuts off deblocking pin, piston bush is descending, and close oil recovery passage, the lower end of described packer 4 is provided with sand-proof pipe 6, the effect of sand-proof pipe 6 prevents sand from entering in outer tube 11, the inner chamber of described outer tube 11 is provided with oil pipe 5, and the top of oil pipe 5 is connected with fixed block 2, and described oil pipe 5 is connected with screw pump 8 by contiguous block 7.
The both sides up and down of described screw pump 8 are equipped with beam 13, the effect of beam 13 is the pressure reducing screw pump 8, prevent screw pump 8 from damaging, the left and right sides of described screw pump 8 is equipped with fixed block 12, and the other end of fixed block 12 is connected with outer tube 11, the stator 12 of described screw pump 8 left and right sides is all no less than two, and the effect of stator 12 is fixing bolt pumps 8, the bottom of described screw pump 8 is provided with and pushes away oily device 3, described in push away oily device 3 and be connected with blind plugging 10 by joint pin 9.
In embodiments of the present invention, in order to can the internal oil pressure in layered sampling device control in the scope preset, also arrange a control unit, it is arranged on the outside of outer tube.
In the inner side of outer tube 1, three oil pressure sensors are set from top to bottom respectively, in the inner side of the outer tube 1 of oil pipe 5 region, the first oil pressure sensor 23 is set, the inner side of the outer tube 1 in contiguous block and oil pipe join domain arranges the second oil pressure sensor 22,3rd oil pressure sensor 21 is set in the inner side of the outer tube 1 of the lower end of screw pump 8, gathers the oil pressure information in region respectively and transfer in control unit.
One comparison module is set in described control unit, is specially comparator, gather the voltage and current value that each oil pressure sensor gathers respectively; It carries out calculation process to the electric current stored in all signal processing units and voltage acquisition signal.
Described comparison module calculates the second oil pressure sensor gathers numerical value registration P to the first oil pressure sensor according to the following equation 21, in the present embodiment, adopt the electric current of sensor collection and voltage signal to judge;
P 21 ( u 1 , i 1 ) = Σ u 2 , i 2 ( T ( u 2 , i 2 ) * I ′ ( u 1 + u 2 , i 1 + i 2 ) ) Σ u 2 , i 2 T ( u 2 , i 2 ) 2 * Σ u 2 , i 2 I ( u 1 + u 2 , i 1 + i 2 ) 2 - - - ( 1 )
In formula, P 21(u 1, i 1) represent the registration often organizing electric current and voltage signal, u 1and i 1represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 2and i 2represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation;
Described second oil pressure sensor is to the signal registration P of the first oil pressure sensor 21calculate according to the following equation;
P 21 ( u , i ) = Σ j = 1 M P 1 j ( u 1 , i 1 ) M - - - ( 2 )
In formula, M represents sampling group number, and j represents sequence number, P 1j(u 1, i 1) represent and often organize the second oil pressure sensor described in signal to the signal registration of the first oil pressure sensor.
Described comparison module calculates the 3rd oil pressure sensor gathers numerical value registration P to the first oil pressure sensor according to the following equation 31, in the present embodiment, adopt the electric current of sensor collection and voltage signal to judge;
P 31 ( u 1 , i 1 ) = Σ u 3 , i 3 ( T ( u 3 , i 3 ) * I ′ ( u 1 + u 3 , i 1 + i 3 ) ) Σ u 3 , i 3 T ( u 3 , i 3 ) 2 * Σ u 3 , i 3 I ( u 1 + u 3 , i 1 + i 3 ) 2 - - - ( 3 )
In formula, P 31(u 1, i 1) represent the registration often organizing electric current and voltage signal, u 1and i 1represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 3and i 3represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation;
Described comparison module calculates the second oil pressure sensor gathers numerical value registration P to the 3rd oil pressure sensor according to the following equation 23, in the present embodiment, adopt the electric current of sensor collection and voltage signal to judge;
P 23 ( u 3 , i 3 ) = Σ u 2 , i 2 ( T ( u 2 , i 2 ) * I ′ ( u 3 + u 2 , i 3 + i 2 ) ) Σ u 2 , i 2 T ( u 2 , i 2 ) 2 * Σ u 2 , i 2 I ( u 3 + u 2 , i 3 + i 2 ) 2 - - - ( 4 )
In formula, P 23(u 3, i 3) represent the registration often organizing electric current and voltage signal, u 3and i 3represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 2and i 2represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation;
Described comparing unit calculates the signal registration P of the second oil pressure sensor to the first oil pressure sensor 21, the 3rd oil pressure sensor is to the signal registration P of the first oil pressure sensor 31, the 3rd oil pressure sensor is to the signal registration P of the second oil pressure sensor 32.
Also comprise data storage in a control unit, it obtains registration threshold value from data storage, the coincidence angle value of described calculating gained and registration threshold value is compared, if described coincidence angle value is greater than threshold value, then concludes that heavy oil pressure exceeds threshold range; Described control unit controls to reduce oil pressure, ensures the security performance of equipment.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.

Claims (6)

1. a layering pumping unit, comprise outer tube, it is characterized in that: the top of described outer tube is provided with fixed block, the left and right sides of described outer tube is equipped with packer, the lower end of described packer is provided with sand-proof pipe, the inner chamber of described outer tube is provided with oil pipe, and the top of oil pipe is connected with fixed block, described oil pipe is connected with screw pump by contiguous block, the left and right sides of described screw pump is equipped with stator, and the other end of stator is connected with outer tube, the bottom of described screw pump is provided with and pushes away oily device, described in push away oily device and be connected with blind plugging by joint pin;
Also arrange a control unit, it is arranged on the outside of outer tube;
In the inner side of outer tube, three oil pressure sensors are set from top to bottom respectively, in the inner side of the outer tube of oil pipe region, the first oil pressure sensor is set, the inner side of the outer tube in contiguous block and oil pipe join domain arranges the second oil pressure sensor, 3rd oil pressure sensor is set in the inner side of the outer tube of the lower end of screw pump, gathers the oil pressure information in region respectively and transfer in control unit;
One comparison module is set in described control unit, gathers the voltage and current value that each oil pressure sensor gathers respectively; It carries out calculation process to the electric current stored in all signal processing units and voltage acquisition signal;
Described comparison module calculates the second oil pressure sensor gathers numerical value registration P to the first oil pressure sensor according to the following equation 21, adopt the electric current of sensor collection and voltage signal to judge;
P 21 ( u 1 , i 1 ) = Σ u 2 , i 2 ( T ( u 2 , i 2 ) * I ′ ( u 1 + u 2 , i 1 + i 2 ) ) Σ u 2 , i 2 T ( u 2 , i 2 ) 2 * Σ u 2 , i 2 I ( u 1 + u 2 , i 1 + i 2 ) 2 - - - ( 1 )
In formula, P 21(u 1, i 1) represent the registration often organizing electric current and voltage signal, u 1and i 1represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 2and i 2represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation;
Described second oil pressure sensor is to the signal registration P of the first oil pressure sensor 21calculate according to the following equation;
P 21 ( u , i ) = Σ j = 1 M P 1 j ( u 1 , i 1 ) M - - - ( 2 )
In formula, M represents sampling group number, and j represents sequence number, P 1j(u 1, i 1) represent and often organize the second oil pressure sensor described in signal to the signal registration of the first oil pressure sensor;
Described comparing unit calculates the signal registration P of the second oil pressure sensor to the first oil pressure sensor 21, the 3rd oil pressure sensor is to the signal registration P of the first oil pressure sensor 31, the 3rd oil pressure sensor is to the signal registration P of the second oil pressure sensor 32;
Also comprise data storage in a control unit, it obtains registration threshold value from data storage, the coincidence angle value of described calculating gained and registration threshold value is compared, if described coincidence angle value is greater than threshold value, then concludes that heavy oil pressure exceeds threshold range; Described control unit controls to reduce oil pressure.
2. layering pumping unit according to claim 1, is characterized in that: the top of described fixed block is provided with centralizer.
3. layering pumping unit according to claim 1, is characterized in that: the both sides up and down of described screw pump are equipped with beam.
4. layering pumping unit according to claim 1, is characterized in that: the packer of the described outer tube left and right sides is all no less than two.
5. layering pumping unit according to claim 1, is characterized in that: the stator of the described screw pump left and right sides is all no less than two.
6. layering pumping unit according to claim 1, is characterized in that: described comparison module calculates the 3rd oil pressure sensor gathers numerical value registration P to the first oil pressure sensor according to the following equation 31, in the present embodiment, adopt the electric current of sensor collection and voltage signal to judge;
P 31 ( u 1 , i 1 ) = Σ u 3 , i 3 ( T ( u 3 , i 3 ) * I ′ ( u 1 + u 3 , i 1 + i 3 ) ) Σ u 3 , i 3 T ( u 3 , i 3 ) 2 * Σ u 3 , i 3 I ( u 1 + u 3 , i 1 + i 3 ) 2 - - - ( 3 )
In formula, P 31(u 1, i 1) represent the registration often organizing electric current and voltage signal, u 1and i 1represent voltage signal, current signal that the first oil pressure sensor gathers, u respectively 3and i 3represent voltage signal, current signal that described second oil pressure sensor gathers respectively, T represents mean square deviation computing, I and I' represents integral operation.
CN201511027270.2A 2015-12-31 2015-12-31 Separate layer oil production device Pending CN105422059A (en)

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Application Number Priority Date Filing Date Title
CN201511027270.2A CN105422059A (en) 2015-12-31 2015-12-31 Separate layer oil production device

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Application Number Priority Date Filing Date Title
CN201511027270.2A CN105422059A (en) 2015-12-31 2015-12-31 Separate layer oil production device

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2654838Y (en) * 2003-10-17 2004-11-10 中国石化胜利油田有限公司采油工艺研究院 Replacing of pipe column under three layer oil extraction without moving pipe column
CN2734995Y (en) * 2004-09-01 2005-10-19 向志全 Production assembly capable of recognizing oil layer hierarchically
RU2309246C1 (en) * 2006-02-02 2007-10-27 Олег Марсович Гарипов Downhole machine
CN202611672U (en) * 2012-05-28 2012-12-19 于丽俊 High-water-bearing layer thickened oil dilution oil production pipe column
CN202732329U (en) * 2012-05-28 2013-02-13 中国石油天然气股份有限公司 Layered oil production device capable of controlling upper and lower production zone flowing pressure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2654838Y (en) * 2003-10-17 2004-11-10 中国石化胜利油田有限公司采油工艺研究院 Replacing of pipe column under three layer oil extraction without moving pipe column
CN2734995Y (en) * 2004-09-01 2005-10-19 向志全 Production assembly capable of recognizing oil layer hierarchically
RU2309246C1 (en) * 2006-02-02 2007-10-27 Олег Марсович Гарипов Downhole machine
CN202611672U (en) * 2012-05-28 2012-12-19 于丽俊 High-water-bearing layer thickened oil dilution oil production pipe column
CN202732329U (en) * 2012-05-28 2013-02-13 中国石油天然气股份有限公司 Layered oil production device capable of controlling upper and lower production zone flowing pressure

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