CN101929327A - Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof - Google Patents

Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof Download PDF

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Publication number
CN101929327A
CN101929327A CN2010102740500A CN201010274050A CN101929327A CN 101929327 A CN101929327 A CN 101929327A CN 2010102740500 A CN2010102740500 A CN 2010102740500A CN 201010274050 A CN201010274050 A CN 201010274050A CN 101929327 A CN101929327 A CN 101929327A
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CN
China
Prior art keywords
submersible pump
electric submersible
tubular column
screen casing
tubing
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.)
Pending
Application number
CN2010102740500A
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Chinese (zh)
Inventor
邵明仁
范白涛
刘传刚
张晓诚
王利军
李斌
崔澎涛
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.)
China National Offshore Oil Corp CNOOC
CNOOC Energy Technology and Services Ltd
Supervision and Technology Branch of CNOOC Energy Technology and Services Ltd
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC Energy Technology and Services Ltd
Supervision and Technology Branch of CNOOC Energy Technology and Services Ltd
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
Application filed by China National Offshore Oil Corp CNOOC, CNOOC Energy Technology and Services Ltd, Supervision and Technology Branch of CNOOC Energy Technology and Services Ltd filed Critical China National Offshore Oil Corp CNOOC
Priority to CN2010102740500A priority Critical patent/CN101929327A/en
Publication of CN101929327A publication Critical patent/CN101929327A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an electric submersible pump producing tubular column with sand filtering and discharging functions and an operating method thereof. The electric submersible pump producing tubular column comprises an electric submersible pump suspender, a guide hood, a blind plug, a check valve, an electric submersible pump unit and a tubing pup joint, wherein the electric submersible pump suspender is arranged outside a production tubing, the production tubing is connected with the tubing pup joint, the electric submersible pump unit is connected with the check valve through the tubing pup joint, and the electric submersible pump suspender is connected with the guide hood. The electric submersible pump producing tubing column is characterized by also comprising a filtering device, wherein the filtering device is a sieve tube arranged between two sections of guide hood, or a sieve tube between the guide hood and the blind plug, or a sieve tube between the two sections of the guide hood, or a sieve tube arranged between the guide hood and the blind plug. The invention has the advantages of being capable of filtering sand in an oil well, effectively protecting the electric submersible pump unit, realizing automatic switching from the production channel to an extrusion channel, a positive and negative circulation channel and a well killing channel because an automatic switching tee structure is additionally arranged in the tubing column, and providing the convenience for the subsequent well repairing operation.

Description

Electric submersible pump producing tubular column and method of operating thereof with filter sediment outflow function
Technical field
The invention belongs to the oil field development production technical field, particularly relate to a kind of electric submersible pump producing tubular column and method of operating thereof with filter sediment outflow function.
Background technology
In present known oil field development, what we often used in appropriate sand output well oil recovery process is that electric submersible screw pump recovers the oil, on design principle, screw pump can carry sand content to be up to 80% mortar in theory, so it is applicable to that height contains the oil producing operation of sand drain.And the maximum pump discharge of screw pump design at present is for having a daily output of about 200 sides, and this technical bottleneck also is the production capacity limit of present screw pump at the higher producing well of sand content.
In appropriate sand output well oil recovery process, in order to enhance productivity, the bigger electric submersible pump tubing string of utilization discharge capacity strengthens filter sediment outflow ability by relevant design of string pipe, is the requisite measure that improves this appropriate sand output well production capacity.When improving electric submersible pump producing tubular column and improving filter sediment outflow ability, squeeze note medicament when giving well workover, positive and negative circulation well cleanup is provided convenience, and it is also most important to increase by a cover passage converting means.The electric submersible pump of using in the offshore oil gas well production at present only is applicable to the well that sand production rate is considerably less, does not still adopt the process of electric submersible pumping greatly at this relative sand production rate.
Summary of the invention
The present invention provides a kind of electric submersible pump producing tubular column and method of operating thereof with filter sediment outflow function for solving the technical problem that exists in the known technology, and its sand grains in can the filtering oil well is effectively protected the electric submersible pump unit.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of electric submersible pump producing tubular column with filter sediment outflow function, comprise electric submersible pump hanger, kuppe, blind plugging, ball-and-seat, electric submersible pump unit, tubing nipple, production tube is equipped with the electric submersible pump hanger outward, production tube links to each other with tubing nipple, the electric submersible pump unit links to each other with ball-and-seat by tubing nipple, the electric submersible pump hanger links to each other with kuppe, it is characterized in that: also include filter.
The present invention can also adopt following technical scheme:
Described filter is the screen casing that is installed between the two joint kuppes.
Described filter is the screen casing that is installed between kuppe and the blind plugging.
Described filter be installed in two joints between the kuppes screen casing and be installed in kuppe and blind plugging between screen casing.
Also be connected with adaptive switched threeway between described ball-and-seat and the tubing nipple.
A kind of method of operating with electric submersible pump producing tubular column of filter sediment outflow function comprises connecting all parts according to designing requirement earlier, is sent into by production tube and puts in place, it is characterized in that:
When ordinary production, sandy crude filters through screen casing earlier, enters in the kuppe, is lifted to ground under the swabbing action of electric submersible pump unit, prevents that electric submersible pump from seriously causing sand card rotor to transship shutdown because of shaking out, protect the normal operation of motor and centrifugal pump;
When needs squeeze note medicament, sleeve pipe and oil pipe annular space are closed in termination of pumping again, and squeeze note medicament in oil pipe, medicament enter the stratum by adaptive switched threeway via kuppe, screen casing, or return out ground through annular space;
When needs carried out positive and negative cycle operation, sleeve pipe and oil pipe annular space were opened in termination of pumping again, made tubing string constitute circulation canal in adaptive switched threeway place.
Advantage and good effect that the present invention has are:
Because the present invention adopts technique scheme; by design one knotter screen pipe below kuppe; perhaps in kuppe, be connected in series one section screen casing; can in the oil recovery schematic design of appropriate sand output well, select the bigger electric submersible pump production operation of discharge capacity for use; screen casing can filter a certain size sand grains and impurity; prevent the big overload shutdown that causes of sand production rate, and reduce the accumulation of sand formation cuttings amount, and then protected motor and centrifugal pump.Compare and use screw pump to take out the notes oil recovery, can significantly improve the output of field produces, create higher operational benefit.Meanwhile, added adaptive switched three-port structure in the tubing string, realized from producing passage to transposition automatically squeeze note, positive and negative circulation, the kill-job passage, for later workover treatment provides convenience.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3.
Among the figure: 1, production tube; 2, electric submersible pump hanger; 3, kuppe; 4, screen casing; 5, blind plugging; 6, tubing nipple; 7, adaptive switched threeway; 7-1, by-pass prot; 8, ball-and-seat; 9, electric submersible pump unit; 10, sleeve pipe.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Embodiment 1:
See also Fig. 1, a kind of electric submersible pump producing tubular column with filter sediment outflow function, comprise production tube 1, electric submersible pump hanger 2, kuppe 3, blind plugging 5, ball-and-seat 8, electric submersible pump unit 9, tubing nipple 6, production tube is equipped with the electric submersible pump hanger outward, production tube links to each other with tubing nipple, the electric submersible pump unit links to each other with ball-and-seat by tubing nipple, and the electric submersible pump hanger links to each other with kuppe, also includes filter.
Described filter is the screen casing 4 that is installed between kuppe 3 and the blind plugging 5.
Also be connected with adaptive switched threeway 7 between described ball-and-seat 8 and the tubing nipple 6.
Embodiment 2:
See also Fig. 2, a kind of electric submersible pump producing tubular column with filter sediment outflow function, comprise production tube 1, electric submersible pump hanger 2, kuppe 3, blind plugging 5, ball-and-seat 8, electric submersible pump unit 9, tubing nipple 6, production tube is equipped with the electric submersible pump hanger outward, production tube links to each other with tubing nipple, the electric submersible pump unit links to each other with ball-and-seat by tubing nipple, and the electric submersible pump hanger links to each other with kuppe, also includes filter.
Described filter is the screen casing 4 that is installed between the two joint kuppes 3.
Also be connected with adaptive switched threeway 7 between described ball-and-seat 8 and the tubing nipple 6.
Embodiment 3:
See also Fig. 3, a kind of electric submersible pump producing tubular column with filter sediment outflow function, comprise production tube 1, electric submersible pump hanger 2, kuppe 3, blind plugging 5, ball-and-seat 8, electric submersible pump unit 9, tubing nipple 6, production tube is equipped with the electric submersible pump hanger outward, production tube links to each other with tubing nipple, the electric submersible pump unit links to each other with ball-and-seat by tubing nipple, and the electric submersible pump hanger links to each other with kuppe, also includes filter.
Described filter be installed in two joints between the kuppes 3 screen casing 4 and be installed in kuppe 3 and blind plugging 5 between screen casing 4.
Also be connected with adaptive switched threeway 7 between described ball-and-seat 8 and the tubing nipple 6.
Operating principle of the present invention is:
During production, underground sandy crude comes out through the stratum perforated interval, under the acting in conjunction of strata pressure and pump suction force, crude oil comes out from following stratum to filter through screen casing 4, and sand grains and impurity are deposited in the shaft bottom, to the annular space of sleeve pipe 10 with kuppe 3 and screen casing 4, electric submersible pump unit 9 starts, drive the production passage that the crude oil after filtering is formed through ball-and-seat 8, adaptive switched threeway 7 and tubing nipple 6, flow into production tube 1 by electric submersible pump hanger 2 again, arrive the surface mining utilization at last.Because electric submersible pump production technology tubing string is between kuppe 3 and blind plugging 5; or between two joint kuppes 3; or installing screen casing 4 additional between kuppe 3 and the blind plugging 5 and between the two joint kuppes 3 simultaneously; solved the difficult problem that appropriate sand output well can adopt electric submersible pump to produce; prevent that electric submersible pump unit 9 from damaging motor because of sand production rate causes sand card rotor greatly; protect its operate as normal, and improved the output that this exceptional well is produced greatly.
During well workover, adaptive switched threeway 7 provides squeeze note and positive and negative circulation well cleanup passage.During as need squeeze note medicament; the motor stall; the well head place closes the oil jacket annular space; medicament is down clamp-oned in ground in production tube 1; 7 places change runner automatically in adaptive switched threeway, come out to enter the stratum through screen casing 4 earlier from the by-pass prot 7-1 of adaptive switched threeway, and simultaneously adaptive switched threeway 7 guarantees that fluid column does not reflux through electric submersible pump unit 9 above it; and then prevent the motor counter-rotating, protect motor.When direct flushing or kill-job, they are the same with squeeze note medicament passage, and the motor stall only need be opened the oil jacket annular space, constitutes circulation.Anti-circulation time pumps into flushing fluid from the oil jacket annular space, flushing fluid returns ground at last from the flow through by-pass prot 7-1 of adaptive switched threeway 7 of following screen casing 4, constitutes circulation, so this cover process pipe string also provides great convenience for well workover.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away under the scope situation that aim of the present invention and claim protect, can also be combined into more multi-formly, these all belong within protection scope of the present invention.

Claims (6)

1. one kind has the electric submersible pump producing tubular column of filtering the sediment outflow function, comprise electric submersible pump hanger, kuppe, blind plugging, ball-and-seat, electric submersible pump unit, tubing nipple, production tube is equipped with the electric submersible pump hanger outward, production tube links to each other with tubing nipple, the electric submersible pump unit links to each other with ball-and-seat by tubing nipple, the electric submersible pump hanger links to each other with kuppe, it is characterized in that: also include filter.
2. a kind of electric submersible pump producing tubular column with filter sediment outflow function according to claim 1 is characterized in that: described filter is the screen casing that is installed between the two joint kuppes.
3. a kind of electric submersible pump producing tubular column with filter sediment outflow function according to claim 1, it is characterized in that: described filter is the screen casing that is installed between kuppe and the blind plugging.
4. a kind of electric submersible pump producing tubular column with filter sediment outflow function according to claim 1 is characterized in that: described filter be installed in the screen casing between the two joint kuppes and be installed in kuppe and blind plugging between screen casing.
5. a kind of electric submersible pump producing tubular column with filter sediment outflow function according to claim 1 is characterized in that: also be connected with adaptive switched threeway between described ball-and-seat and the tubing nipple.
6. the method for operating with electric submersible pump producing tubular column of filter sediment outflow function comprises connecting all parts according to designing requirement earlier, is sent into by production tube and puts in place, it is characterized in that:
When ordinary production, sandy crude filters through screen casing earlier, enter in the kuppe, under the swabbing action of electric submersible pump unit, rise to ground, prevent that electric submersible pump from seriously causing sand card rotor to transship shutdown because of shaking out, the normal operation of protection motor and centrifugal pump, and after the termination of pumping, the screen casing inside and outside differential pressure disappears, and makes to be adsorbed on its surperficial sand grains and to fall in the well, realizes the self-cleaning function of screen casing;
When needs squeeze note medicament, sleeve pipe and oil pipe annular space are closed in termination of pumping again, and squeeze note medicament in oil pipe, medicament enter the stratum by adaptive switched threeway via kuppe, screen casing, or return out ground through annular space;
When needs carried out positive and negative circulation or kill job, sleeve pipe and oil pipe annular space were opened in termination of pumping again, made tubing string constitute circulation canal in adaptive switched threeway place.
CN2010102740500A 2010-09-06 2010-09-06 Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof Pending CN101929327A (en)

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CN2010102740500A CN101929327A (en) 2010-09-06 2010-09-06 Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107075931A (en) * 2014-09-17 2017-08-18 沙特阿拉伯石油公司 Hanger for umbilical duct deployment type electric submersible pumping system
CN109306859A (en) * 2017-07-28 2019-02-05 深圳市百勤石油技术有限公司 A kind of medicine-filling device of no pipeline oil jacket annulus
CN109306859B (en) * 2017-07-28 2024-04-26 百勤能源科技(惠州)有限公司 Pipeline-free type medicine injection device for oil sleeve annulus

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107075931A (en) * 2014-09-17 2017-08-18 沙特阿拉伯石油公司 Hanger for umbilical duct deployment type electric submersible pumping system
CN107075931B (en) * 2014-09-17 2019-09-17 沙特阿拉伯石油公司 Hanger for umbilical duct deployment type electric submersible pumping system
CN109306859A (en) * 2017-07-28 2019-02-05 深圳市百勤石油技术有限公司 A kind of medicine-filling device of no pipeline oil jacket annulus
CN109306859B (en) * 2017-07-28 2024-04-26 百勤能源科技(惠州)有限公司 Pipeline-free type medicine injection device for oil sleeve annulus

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Application publication date: 20101229