CN204609876U - A kind of full current collecting umbrella for oil well liquid-producing section plane test - Google Patents
A kind of full current collecting umbrella for oil well liquid-producing section plane test Download PDFInfo
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- CN204609876U CN204609876U CN201520321519.XU CN201520321519U CN204609876U CN 204609876 U CN204609876 U CN 204609876U CN 201520321519 U CN201520321519 U CN 201520321519U CN 204609876 U CN204609876 U CN 204609876U
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- central tube
- pipe nipple
- umbrella
- bottom pipe
- silica gel
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Abstract
A kind of full current collecting umbrella for oil well liquid-producing section plane test.Main purpose is to provide one can realize carrying out totally enclosed current-collecting device to well cross section in well logging.It is characterized in that: on central tube, between helmet and central tube base, be fixed with central tube top sub, solid plug and central tube bottom pipe nipple; Be being slidably connected of matching between movable umbrella muscle seat with central tube bottom pipe nipple; Vertically be equipped with piston in the cavity of central tube bottom pipe nipple bigger diameter end, be connected with silica gel catheter; Vertically piston push rod is equipped with in the cavity of central tube bottom pipe nipple miner diameter end, the stage casing of piston push rod is connected with waling stripe, the two ends of bar are inserted in the inwall of movable umbrella muscle seat, and the tube wall of central tube bottom pipe nipple has a pair chute moved up and down for waling stripe; The maximum outer rim place of umbrella cloth is fixed with double-deck annular bag, and silica gel capsula interna is housed inside annular bag, and capsule is built-in with liquid silica gel, and silica gel capsula interna is connected with silica gel catheter.
Description
Technical field
The utility model relates to a kind of afflux device be applied in for measuring oil well liquid-producing section in oilfield test technical field.
Background technology
Oil well liquid-producing profile survey is that field management department grasps the data such as subsurface reservoir oil, hydrodynamic(al) state Distribution and change and the important measures taked in oilfield development process, also be after oil, water well operation, the important means of evaluating operation effect, it is that oil field scientific development scheme working-out provides necessary foundation.Because the most oil well of China oil well is low liquid producing well, be the degree of accuracy improving oil well liquid-producing profile survey parameter, the annulus logging instrument that nearly all oilfield measuring unit uses all using current collector as the indispensable ingredient of instrument.Current collector has rubber ball current collector and umbrella-type current collector two kinds.Though rubber ball current collector catchment effect is good, be not durable; Umbrella-type current collector is generally used because of the good durability in its down-hole and reliability, but catchment effect is poor, measures fluid leakage larger.The leakage of current collecting umbrella is by the order of accuarcy of extreme influence detected fluid flow and moisture content, void fraction, and therefore, the current collector that objective requirement is such, that is: should have the down-hole durability of umbrella-type current collector, have the catchment effect that rubber ball current collector is good again.
Summary of the invention
In order to solve the technical problem mentioned in background technology, the utility model provides a kind of full current collecting umbrella for oil well liquid-producing section plane test, this kind of complete or collected works flow parachute kit good catchment effect, effectively can improve the certainty of measurement of oil well flow, moisture content, void fraction.
The technical solution of the utility model is: this kind is for the full current collecting umbrella of oil well liquid-producing section plane test, and comprise helmet on central tube, central tube base, umbrella cloth, umbrella muscle and movable umbrella muscle seat, its unique distinction is:
Central tube is fixed with central tube top sub, solid plug and central tube bottom pipe nipple from top to bottom successively between helmet and central tube base; Movable umbrella muscle seat is positioned at the top of central tube base, around the outer wall of central tube bottom pipe nipple, is being slidably connected of matching between movable umbrella muscle seat with central tube bottom pipe nipple;
Central tube bottom pipe nipple is the hollow reducing round tube shape structure with undergauge step, vertically piston is equipped with in the cavity of described central tube bottom pipe nipple bigger diameter end, sidewall in the cavity of described central tube bottom pipe nipple bigger diameter end has silica gel manhole appendix near described solid plug one end, and described silica gel manhole appendix is externally connected with silica gel catheter; The piston push rod be connected with described piston is vertically equipped with in the cavity of described central tube bottom pipe nipple miner diameter end, laterally run through in the stage casing of piston push rod and be connected with waling stripe, the two ends of waling stripe are run through the tube wall of central tube bottom pipe nipple and insert in the inwall of movable umbrella muscle seat, drive described movable umbrella muscle seat to move up and down along described central tube bottom pipe nipple to realize described piston push rod; The tube wall of central tube bottom pipe nipple has a pair chute moved up and down for described waling stripe.
The maximum outer rim place of umbrella cloth is fixed with double-deck annular bag, is equipped with that annular can be filled, the silica gel capsula interna of tapping body inside cloth bag, and described silica gel capsula interna is connected with silica gel catheter; On the outer wall upper end that the two ends up and down of umbrella muscle are fixed on central tube top sub respectively by umbrella muscle retaining ring and movable umbrella muscle seat.
In addition, described solid plug has two apertures, one of them is for sealing rear cabling, and for giving central tube lower motor system power supply, wherein two are provided with pressure limiting valve, for limiting the maximum pressure being filled with fluid in umbrella cloth annular capsule.
The utility model has following beneficial effect: this kind of current collecting umbrella by interior band piston push rod central tube, umbrella muscle, form with the umbrella cloth of annular silica gel capsula interna, wherein central tube comprise successively from top to bottom pipe nipple under the plug of lower center tube pipe nipple in helmet on central tube, central tube top sub, connection, central tube, central tube base, be positioned at pipe nipple inside under central tube push rod, be enclosed within slip umbrella muscle seat, upper subumbrella rib retaining ring and a few part of various sealing ring outside pipe nipple under central tube.It occupy the center of umbrella, and be the trunk of umbrella, skeleton is all processed by stainless steel material.The same with existing current collecting umbrella, umbrella muscle is also 16, and every root umbrella muscle is processed by elastic metallic material, and they are fixed on upper and lower two by umbrella muscle retaining ring and are enclosed within and central tube have 16 slots and on the umbrella muscle seat of equal circumference distribution.Umbrella muscle is positioned at central tube periphery, and central tube part is fenced up.Umbrella cloth is a kind of by the closely knit cloth be made into of fine fibre, according to the size of umbrella, cloth is tailored into the shape of umbrella, its one side coating one deck glue.The certain position of umbrella cloth designs the interlayer of one fixed width, places annular silicon capsule inside interlayer, capsule is communicated with centre pipe by conduit.When logging well, the turning moment of motor to be become the thrust to central tube inside push rod by moment conversion device by the electric system be connected with central tube base, makes it drive slip umbrella muscle seat upwards to do rectilinear motion, opens current collecting umbrella, make umbrella muscle be attached on the borehole wall; Simultaneously, the fluid in pipe nipple chamber, central tube bottom is pushed by conduit in the silicon capsule on umbrella cloth by the piston on push rod, thus the arcuate region formed between the umbrella cloth closed between umbrella muscle and the borehole wall, the object of complete or collected works' stream when reaching well logging.When closing one's umbrella, electric system pulls push rod, and moving downward storing in the fluid recovery made in umbrella cloth capsule to central tube bottom pipe nipple of piston is stand-by.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that when specifically implementing, full current collecting umbrella obtains experimental data figure in ASS.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Because umbrella umbrella muscle when down-hole is opened can fit tightly with the borehole wall, and the umbrella cloth between umbrella muscle can only be evened up by umbrella muscle, between the circular pit shaft of umbrella and steel, form multiple arcuate gap like this, the reason place of these gaps current collecting umbrella leakage just.And this programme will address this problem just.
As shown in Figure 1, this kind is for the full current collecting umbrella of oil well liquid-producing section plane test, and comprise helmet 1 on central tube, central tube base 5, umbrella cloth 11, umbrella muscle 10 and movable umbrella muscle seat 7, its unique distinction is:
Central tube is fixed with central tube top sub 2, solid plug 3 and central tube bottom pipe nipple 4 from top to bottom successively between helmet 1 and central tube base 5; Movable umbrella muscle seat 7 is positioned at the top of central tube base 5, around the outer wall of central tube bottom pipe nipple 4, is being slidably connected of matching between movable umbrella muscle seat 7 with central tube bottom pipe nipple 4;
Central tube bottom pipe nipple 4 is the hollow reducing round tube shape structure with undergauge step, piston 9 is vertically equipped with in the cavity of described central tube bottom pipe nipple bigger diameter end, sidewall in the cavity of described central tube bottom pipe nipple bigger diameter end has silica gel manhole appendix near described solid plug one end, and described silica gel manhole appendix is externally connected with silica gel catheter 12; Piston push rod 6 is vertically equipped with in the cavity of described central tube bottom pipe nipple miner diameter end, laterally run through in the stage casing of piston push rod 6 and be connected with waling stripe 13, the two ends of waling stripe 13 are run through the tube wall of central tube bottom pipe nipple 4 and insert in the inwall of movable umbrella muscle seat 7, drive described movable umbrella muscle seat to move up and down along described central tube bottom pipe nipple to realize described piston push rod; The tube wall of central tube bottom pipe nipple 4 has a pair chute 14 moved up and down for described waling stripe;
The maximum outer rim place of umbrella cloth 11 is fixed with double-deck annular bag 15, is equipped with that annular can be filled, the silica gel capsula interna of tapping body inside described annular bag, and be built-in with liquid silica gel, described silica gel capsula interna is connected with silica gel catheter 12;
On the outer wall upper end that the two ends up and down of umbrella muscle 10 are fixed on central tube top sub 2 respectively by umbrella muscle retaining ring 8 and movable umbrella muscle seat 7.
In addition, described solid plug has two apertures, one of them is for sealing rear cabling, and for giving central tube lower motor system power supply, wherein two are provided with pressure limiting valve, for limiting the maximum pressure being filled with fluid in umbrella cloth annular capsule.
In this programme, umbrella cloth appropriate location adopts multilayer structure, installs annular thin silicon capsule inside cladding additional.When inside capsule during topping up body, umbrella cloth annular capsule protuberance, can packwork state time umbrella muscle cloth and circular well barrel between the arcuate region that formed, close the space between logging instrument and the borehole wall preferably, substantially reach complete or collected works' stream.This programme is according to current collecting umbrella operating principle, in conjunction with syringe operating principle, be syringe construction form by partial design inside pipe nipple under centre pipe, smooth cylinder is processed into by cylindrical cavity sidewall inside pipe nipple, the inside is provided with mobile piston, piston and switch umbrella push rod are processed into one, and appropriate location, smooth cylinder bottom arranges an inlet opening.When opening current collecting umbrella, the electric system be connected with central tube base promotes piston by the inner push rod of central tube, liquid in plunger container is pushed in the silicon capsule on umbrella cloth by conduit, thus the arcuate region formed between the umbrella cloth closed between umbrella muscle and the borehole wall, the object of complete or collected works' stream when reaching well logging; When closing one's umbrella, electric system pulls push rod, and moving downward storing in the fluid recovery made in umbrella cloth capsule to central tube bottom pipe nipple of piston is stand-by.
In ASS, carry out contrast experiment according to the complete current collecting umbrella that above-mentioned design scheme makes, obtain result as shown in Figure 2.
As seen from Figure 2, under given same discharge, do not adopt umbrella but by instrument directly and under the airtight connection of simulation system flow export pipeline, turbine flowmeter response frequency is the highest, next is the response that the complete or collected works of development flow the turbine flowmeter in umbrella mass flow situation, and the flow relative error that it and the former record is 6.68%.And the frequency that in common current collecting umbrella afflux situation, turbine flowmeter records is minimum, it is 36.14% with the flow relative error that situation of missing does not record.Can be found out by Data Comparison, the utility model complete or collected works flow parachute kit good catchment effect, and the certainty of measurement for raising oil well flow, moisture content, void fraction provides precondition.
Claims (2)
1., for a full current collecting umbrella for oil well liquid-producing section plane test, comprise helmet on central tube (1), central tube base (5), umbrella cloth (11), umbrella muscle (10) and movable umbrella muscle seat (7), it is characterized in that:
Central tube is fixed with central tube top sub (2), solid plug (3) and central tube bottom pipe nipple (4) from top to bottom successively between helmet (1) and central tube base (5); Movable umbrella muscle seat (7) is positioned at the top of central tube base (5), around the outer wall of central tube bottom pipe nipple (4), is being slidably connected of matching between movable umbrella muscle seat (7) with central tube bottom pipe nipple (4);
Central tube bottom pipe nipple (4) is the hollow reducing round tube shape structure with undergauge step, piston (9) is vertically equipped with in the cavity of described central tube bottom pipe nipple bigger diameter end, sidewall in the cavity of described central tube bottom pipe nipple bigger diameter end has silica gel manhole appendix near described solid plug one end, and described silica gel manhole appendix is externally connected with silica gel catheter (12); The piston push rod (6) be connected with described piston is vertically equipped with in the cavity of described central tube bottom pipe nipple miner diameter end, laterally run through in the stage casing of piston push rod (6) and be connected with waling stripe (13), the two ends of waling stripe (13) are run through the tube wall of central tube bottom pipe nipple (4) and insert in the inwall of movable umbrella muscle seat (7), drive described movable umbrella muscle seat to move up and down along described central tube bottom pipe nipple to realize described piston push rod; The tube wall of central tube bottom pipe nipple (4) has a pair chute (14) moved up and down for described waling stripe;
The maximum outer rim place of umbrella cloth (11) is fixed with double-deck annular bag (15), is equipped with that annular can be filled, the silica gel capsula interna of tapping body inside described annular bag, and capsule is built-in with liquid silica gel, and described silica gel capsula interna is connected with silica gel catheter (12);
On the outer wall upper end that the two ends up and down of umbrella muscle (10) are fixed on central tube top sub (2) respectively by umbrella muscle retaining ring (8) and movable umbrella muscle seat (7).
2. a kind of full current collecting umbrella for oil well liquid-producing section plane test according to claim 1, it is characterized in that: described solid plug has two apertures, one of them is for sealing rear cabling, for giving central tube lower motor system power supply, wherein two are provided with pressure limiting valve, for limiting the maximum pressure being filled with fluid in umbrella cloth annular capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321519.XU CN204609876U (en) | 2015-05-19 | 2015-05-19 | A kind of full current collecting umbrella for oil well liquid-producing section plane test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321519.XU CN204609876U (en) | 2015-05-19 | 2015-05-19 | A kind of full current collecting umbrella for oil well liquid-producing section plane test |
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| CN204609876U true CN204609876U (en) | 2015-09-02 |
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| CN201520321519.XU Withdrawn - After Issue CN204609876U (en) | 2015-05-19 | 2015-05-19 | A kind of full current collecting umbrella for oil well liquid-producing section plane test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863582A (en) * | 2015-05-19 | 2015-08-26 | 东北石油大学 | Full-collecting umbrella for oil well produced liquid profile testing |
-
2015
- 2015-05-19 CN CN201520321519.XU patent/CN204609876U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863582A (en) * | 2015-05-19 | 2015-08-26 | 东北石油大学 | Full-collecting umbrella for oil well produced liquid profile testing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170620 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170620 |