CN104265273A - Testing device and testing method for horizontal well subsection well completion inflow - Google Patents
Testing device and testing method for horizontal well subsection well completion inflow Download PDFInfo
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- CN104265273A CN104265273A CN201410486762.7A CN201410486762A CN104265273A CN 104265273 A CN104265273 A CN 104265273A CN 201410486762 A CN201410486762 A CN 201410486762A CN 104265273 A CN104265273 A CN 104265273A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
Abstract
The invention relates to a testing device and a testing method for horizontal well subsection well completion inflow, the device comprises an oil water separating pumping system, an oil water mixing inflow system, a horizontal well subsection well completion imitating well tube system and a speed reducing buffer liquid pot, the oil water separating pumping system is connected to a plurality of sets of oil water mixing inflow systems in a parallel mode through the oil water external connection pipeline, each set of oil water mixing inflow system is connected to the flow in hole of the horizontal well subsection well completion imitating well tube system through the pipeline; the horizontal well subsection well completion well completion inflow imitating well tube system, the speed reducing buffer liquid pot, the oil water separator inlet of the oil water separating pumping system are connected through the pipelines. The testing device and testing method for horizontal well subsection well completion inflow can display the different liquid producing sections, water out degree for horizontal well subsection well completion and the well tube pressure and temperature change relationship under impact of the centre tube column; the test under single factor influence can be realized as well as the test under multi-factor coupling function, the scientific base can be offered for developing the horizontal well water finding testing technology.
Description
Technical field
The invention belongs to petroleum works field, particularly, relate to a kind of horizontal well in segments completion and to become a mandarin testing arrangement and method of testing, to become a mandarin liquid measure, moisture content and wellbore pressure, Temperature Distribution profile change relation for measuring each segmentation under horizontal well in segments completion condition.
Background technology
The application of horizontal well has clear superiority for raising individual well production efficiency, and current horizontal well in segments completion becomes main trend, and each elephant is succeeded application at home.Adopt conventional completed well mode, once bottom-water breakthrough, horizontal well cannot continue to produce; Adopt the mode of sectional well completion then can implement the segmentation of segmentation water blockoff to recover the oil.Water outlet topical diagnosis accurately and control are basis and the key of horizontal well in segments completion High-efficient Production, are also one of important technology difficult problems in production pipe in horizontal reason.Horizontal well water exploration method of testing is mainly grown up in the qualitative difference of physics and chemistry by oil and water, and developing supporting suitable multi-parameter horizontal well inflow profile measuring technology is the key issue solving current horizontal well in segments completion water detection test.
The domestic device research about horizontal well test is more at present, the patent of invention that application number is 200910019350.1, publication No. is CN101696626A discloses a kind of multifunctional physical model test device of horizontal well, mainly provides horizontal well anti-sand process technology effect assessment, sieve tube completion water to bore the functions such as rule, screen casing blocking cleaning and the application of horizontal well anti-sand process technology Parameters Optimal Design; The patent of invention that application number is 201210071679.4, publication No. is CN102587894A discloses a kind of horizontal well seepage experimental device, for analyzing the varying level well completion mode such as barefoot completion, slotted liner completion, perforation completion, gravel pack completion to the impact of horizontal well surrounding formation seepage flow; The patent of invention that application number is 201310026715.X, publication No. is CN103104254A discloses a kind of Multifunctional oil reservoir analogue experiment installation, relate to the simulation of multiple hole condition, horizontal wellbore pressure drop impact and the end rule that rises waterborne to simulate, be especially applicable to the reservoir system simulation of bottom water coning.
The researchs such as mostly existing level well analogue means is to shake out for horizontal well under conventional completed well mode, stratum filtration field or horizontal wellbore Pressure Drop need and the analogue means of design, there is not yet horizontal well in segments completion and to become a mandarin the relevant report of testing arrangement and method of testing.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of horizontal well in segments completion to become a mandarin testing arrangement and method of testing, be intended to set up horizontal well in segments completion to become a mandarin the relation of liquid measure, moisture content and pit shaft test pressure, Temperature Distribution profile change, for developing water horizontal well water detection measuring technology provides scientific basis.
For achieving the above object, the present invention is by the following technical solutions:
Horizontal well in segments completion becomes a mandarin testing arrangement, comprise: water-oil separating pumps into system, oil mixing with water enters streaming system, horizontal well in segments completion simulation wellbore hole system, deceleration buffer flow container, it is characterized in that: water-oil separating pumps into system and enters streaming system by profit extension tube attached line parallel many covers oil mixing with water, often overlap oil mixing with water and enter streaming system and be connected by pipeline with the inflow hole of horizontal well in segments completion simulation wellbore hole system; Water-oil separating pumps into system and pumps into and separating treatment for water-oil phase fluid, oil mixing with water enter streaming system realize segmentation become a mandarin fluid environment simulation, horizontal well in segments completion simulation wellbore hole system realize sectional well completion simulation and wellbore fluids Parameters variation measure; The division number of horizontal well in segments completion simulation wellbore hole system is consistent with the use tricks that oil mixing with water enters streaming system; The oil water separator entrance that horizontal well in segments completion simulation wellbore hole system, deceleration buffer flow container, water-oil separating pump into system is connected by pipeline, realizes recycling of the oily and water of simulation.
Horizontal well in segments completion becomes a mandarin method of testing, above-mentioned horizontal well in segments completion is adopted to become a mandarin testing arrangement, it is characterized in that, carry out horizontal well in segments completion when entering current test, according to horizontal well in segments completion experimental program, complete center oil pipe design to connect and horizontal wellbore simulation sectional well completion, opening controlling valve door, after check system, fluid inflow speed and the moisture content of well completion section is respectively simulated by the oil mixing with water Systematical control that becomes a mandarin, to horizontal well in segments completion simulation wellbore hole system feed flow, after flow parameter is stable, by temperature pick up and pressure sensor Real-time Collection records center oil pipe each section of pressure and temperature value, and draw wellbore pressure and the temperature profile of horizontal well in segments completion.
Relative to prior art, beneficial effect of the present invention is as follows: the present invention has the advantages such as device is easy, precision is high, good reliability, the wellbore pressure under different production profile, water outlet degree and the central tube column combination impact of horizontal well in segments completion and variations in temperature relation can be reflected, both the test under single-factor influence can have been carried out, also can carry out the test under various factors coupling effect, can be developing water horizontal well water detection measuring technology and scientific basis is provided.
Accompanying drawing explanation
Fig. 1 is that horizontal well in segments completion becomes a mandarin testing arrangement structural representation;
In figure: 1, water-oil separating pumps into system; 2, oil mixing with water enters streaming system; 3, horizontal well in segments completion simulation wellbore hole system; 4, deceleration buffer flow container;
11, oil water separator; 12a, delivery port; 12b, oil-out; 13, water pot; 14, oil tank; 15, aqueous phase centrifugal pump; 16, oil phase centrifugal pump; 17, aqueous phase master control valve; 18, oil phase master control valve; 19, strainer;
21, aqueous phase stream control valve; 22, oil phase flow control valve; 23, oil-water mixer; 24, water cut meter; 25, constant flow pump; 26, four-way; 27, arrival end thermometer; 28, inlet port pressure meter;
31, simulation wellbore hole outer tube; 32, inflow hole; 33, center oil pipe; 34, blind pipe; 35, pre-hole pipe; 36, union; 37, plug joint; 38, temperature pick up; 39, pressure sensor; 310, packing parts; 311, port of export constant pressure valve; 312, port of export flow meter; 313, draining valve.
Detailed description of the invention
As shown in Figure 1, horizontal well in segments completion becomes a mandarin testing arrangement, and segments is three, comprising: water-oil separating pumps into system 1, oil mixing with water enters streaming system 2, horizontal well in segments completion simulation wellbore hole system 3, deceleration buffer flow container 4; Water-oil separating pumps into system 1 and pumps into and separating treatment for water-oil phase fluid, connect three cover oil mixing with waters by profit extension tube attached line parallel and enter streaming system 2, often overlap oil mixing with water and enter streaming system 2 and be connected by the inflow hole 32 of pipeline with horizontal well in segments completion simulation wellbore hole system 3; Oil mixing with water enter streaming system 2 realize segmentation become a mandarin fluid environment simulation, horizontal well in segments completion simulation wellbore hole system 3 is for simulating sectional well completion horizontal wellbore inner fluid fluidised form and fluid parameter situation of change; Horizontal well in segments completion simulation wellbore hole system 3 is connected with deceleration buffer flow container 4 entrance by pipeline; Deceleration buffer flow container 4 exports oil water separator 11 entrance pumping into system 1 with water-oil separating and is connected, recycling of the oily and water of realization simulation.
Water-oil separating pumps into system 1, comprising: oil water separator 11, water pot 13, oil tank 14, aqueous phase centrifugal pump 15, oil phase centrifugal pump 16, aqueous phase master control valve 17, oil phase master control valve 18, strainer 19; Oil water separator 11 is provided with delivery port 12a, oil-out 12b, for separating of the oil mixing with water fluid that experiment is formed; The arrival end of water pot 13, the arrival end of oil tank 14 are connected with delivery port 12a, the oil-out 12b of oil water separator 11 respectively by pipeline, and water pot 13, oil tank 14 are respectively used to store the two-phase fluid after being separated; The port of export of water pot 13, aqueous phase centrifugal pump 15, strainer 19 are connected successively by pipeline, and strainer 19 pumps into suspended material and solid particle in water for filtering; The pipeline that aqueous phase centrifugal pump 15 is connected with strainer 19 arranges aqueous phase master control valve 17; Oil tank 14, oil phase centrifugal pump 16, oil phase master control valve 18 are connected by pipeline successively.
Oil mixing with water enters streaming system 2, be provided with three covers, often overlap oil mixing with water and enter streaming system and comprise: aqueous phase stream control valve 21, oil phase flow control valve 22, oil-water mixer 23, water cut meter 24, constant flow pump 25, arrival end thermometer 26, inlet port pressure meter 27, four-way 28; The aqueous phase arrival end of oil-water mixer 23, oil phase arrival end arrange aqueous phase stream control valve 21 and oil phase flow control valve 22 respectively, for controlling the profit influx of oil-water mixer 23; Aqueous phase stream control valve 21 is connected with strainer 19 by pipeline, and oil phase flow control valve 22 is connected with oil phase master control valve 18 by pipeline; The port of export of oil-water mixer 23 is connected by pipeline with the entrance of constant flow pump 25, and the pipeline that oil-water mixer 23 is connected with constant flow pump 25 is provided with water cut meter 24, the moisture content of water cut meter 24 real-time monitored oil mixing with water fluid; Constant flow pump 25 exports, arrival end thermometer 26 interface, inlet port pressure meter 27 interface, inflow hole 32 are connected with four-way 26 interface; Constant flow pump 25 to become a mandarin fluid velocity for controlling, and arrival end thermometer 26 to become a mandarin fluid temperature (F.T.) for Real-Time Monitoring, and inlet port pressure meter 27 to become a mandarin fluid pressure for Real-Time Monitoring.
Horizontal well in segments completion simulation wellbore hole system 3, comprising: simulation wellbore hole outer tube 31, center oil pipe 33, packing parts 310, port of export flow meter 311, port of export constant pressure valve 312, draining valve 313;
Simulation wellbore hole outer tube 31 is formed by connecting with this by three Steel Casings, and one end of simulation wellbore hole outer tube 31 is blind end, another is openend, and blind end is provided with plug joint 37; Discharge orifice 32 is set in the middle part of every root Steel Casing; Inflow hole 32 is connected with four-way 26 interface by pipeline, realizes wall and becomes a mandarin;
Center oil pipe 33 is alternately formed by connecting by union 36 by three joint blind pipes 34 and three joint pre-hole pipes 35, one end of center oil pipe 33 is blind pipe end (being connected with one end of blind pipe 34), and the other end is pre-nose end (being connected with one end of pre-hole pipe 35); Each union 36 is arranged the temperature pick up 38 to pipe inner opening and pressure sensor 39, temperature pick up 38 Real-Time Monitoring center oil pipe 33 inner fluid variations in temperature, pressure sensor 39 Real-Time Monitoring center oil pipe 33 fluid pressure changes;
The blind pipe end of center oil pipe 33 is installed on the plug joint 37 of simulation wellbore hole outer tube 31 blind end, and pre-nose end arranges port of export constant pressure valve 311;
In annular space between simulation wellbore hole outer tube 31 and center oil pipe 33, in Steel Casing joint location and position, simulation wellbore hole outer tube 31 openend, packing parts 310 are set, for Simulated Water horizontal well sectional well completion; Port of export constant pressure valve 311, port of export flow meter 312, deceleration buffer flow container 4 entrance are connected by pipeline successively; Port of export flow meter 311 is for observing port of export fluid overall flow rate, and deceleration buffer flow container 4 is for flowing out the buffer of mixing material;
Bottom every root Steel Casing of simulation wellbore hole outer tube 31, draining valve 313 is set respectively near packing parts 310 position, being connected with the entrance in deceleration buffer flow container 4 by pipeline, discharging for testing the delay waste liquid terminated in rear horizontal well in segments completion simulation wellbore hole system 3;
Deceleration buffer flow container 4 exports oil water separator 11 entrance pumping into system 1 by pipeline and water-oil separating and is connected;
Pre-hole pipe 35 can be replaced by slot pipe belt.
The division number of horizontal well in segments completion simulation wellbore hole system 3 is consistent with the use tricks that oil mixing with water enters streaming system 2.
Horizontal well in segments completion becomes a mandarin method of testing, adopts above-mentioned horizontal well in segments completion to become a mandarin testing arrangement, comprises system and connect preparation, systems inspection, enter current control, enter current test and parameter distribution profile drawing, specifically comprise the following steps:
S1: according to horizontal well in segments completion experimental program, the blind sieve structure combination of design centre oil pipe 33, mounting temperature sensor 38 and pressure sensor 39 on union 36, and connect blind pipe 34 and pre-hole pipe 35 organization center oil pipe 33, the blind pipe end of center oil pipe 33 is installed on the plug joint 37 of simulation wellbore hole outer tube 31 blind end, and pre-nose end arranges port of export constant pressure valve 311; Toric space between simulation wellbore hole outer tube 31 and center oil pipe 33, in Steel Casing joint location and position, simulation wellbore hole outer tube 31 openend, packing parts 310 are set, complete horizontal wellbore segmentation, connect respective lines, and in water pot 13 and oil tank 14, inject tap water and hybrid analog-digital simulation oil respectively, preparing experiment;
S2: open oil phase master control valve 18, oil phase flow control valve 22 and port of export constant pressure valve 311, open centrifugal pump 16, strainer 19, oil-water mixer 23, constant flow pump 25 and oil water separator 11, refuel to system, whether check system normally works;
S3: open aqueous phase master control valve 17 and aqueous phase stream control valve 21, to become a mandarin moisture content schematic design value according to segmentation, regulate aqueous phase stream control valve 21 and oil phase flow control valve 22, in oil-water mixer 23, profit is injected by flow proportional, form oil mixing with water fluid, demarcate oil mixing with water fluid moisture content by water cut meter 24;
S4: constant flow pump 25 is according to being designed into Flow Velocity by inflow hole 32 to the toric space feed flow between simulation wellbore hole outer tube 31 and center oil pipe 33, become a mandarin fluid temperature (F.T.) and fluid pressure is recorded respectively by arrival end thermometer 27 and inlet port pressure meter 28, after port of export flow meter 312 registration is stable, by temperature pick up 38 and pressure sensor 39 Real-time Collection record each segmentation pressure and temperature value;
S5: the flow speed value that becomes a mandarin regulating aqueous phase stream control valve 21 and oil phase flow control valve 22, constant flow pump 25, repeats step S3-S5, enters next round determination experiment;
S6: test complete, close aqueous phase master control valve 17 and oil phase master control valve 18, aqueous phase stream control valve 21 and oil phase flow control valve 22, oil-water mixer 23, constant flow pump 25, port of export constant pressure valve 311 successively, open draining valve 313 and the delay waste liquid in device is discharged separation, close oil water separator 11;
S7: according to each section of pressure and temperature value of each experimental record, draws pressure and temperature profile figure in the pit shaft under the corresponding inflow profile of horizontal well in segments completion.
By changing the conditions such as the blind sieve structure combination of each section of inflow velocity, moisture content and center oil pipe 33 in experimentation, horizontal wellbore pressure, temperature variation situation under different geology and engineering specifications can be studied, thus reliably reflect the wellbore pressure under the different production profile of horizontal well in segments completion and the impact of water outlet degree and variations in temperature relation, can be developing water horizontal well water detection measuring technology and scientific basis is provided.
Claims (10)
1. a horizontal well in segments completion becomes a mandarin testing arrangement, comprise: water-oil separating pumps into system, oil mixing with water enters streaming system, horizontal well in segments completion simulation wellbore hole system, deceleration buffer flow container, it is characterized in that: water-oil separating pumps into system and enters streaming system by profit extension tube attached line parallel many covers oil mixing with water, often overlap oil mixing with water and enter streaming system and be connected by pipeline with the inflow hole of horizontal well in segments completion simulation wellbore hole system; Water-oil separating pumps into system and pumps into and separating treatment for water-oil phase fluid, oil mixing with water enter streaming system realize segmentation become a mandarin fluid environment simulation, horizontal well in segments completion simulation wellbore hole system realize sectional well completion simulation and wellbore fluids Parameters variation measure; The division number of horizontal well in segments completion simulation wellbore hole system is consistent with the use tricks that oil mixing with water enters streaming system; The oil water separator entrance that horizontal well in segments completion simulation wellbore hole system, deceleration buffer flow container, water-oil separating pump into system is connected by pipeline, realizes recycling of the oily and water of simulation.
2. horizontal well in segments completion according to claim 1 becomes a mandarin testing arrangement, and it is characterized in that, the division number of horizontal well in segments completion simulation wellbore hole system is consistent with the use tricks that oil mixing with water enters streaming system.
3. the horizontal well in segments completion according to claim 1-2 becomes a mandarin testing arrangement, and it is characterized in that, pre-hole pipe can be replaced by slot pipe belt.
4. the horizontal well in segments completion according to claim 1-3 becomes a mandarin testing arrangement, it is characterized in that, horizontal well in segments completion becomes a mandarin testing arrangement, and segments is three.
5. the horizontal well in segments completion according to claim 1-4 becomes a mandarin testing arrangement, it is characterized in that, water-oil separating pumps into system, comprising: oil water separator, water pot, oil tank, aqueous phase centrifugal pump, oil phase centrifugal pump, aqueous phase master control valve, oil phase master control valve, strainer; Oil water separator is provided with delivery port, oil-out; The arrival end of water pot, the arrival end of oil tank are connected respectively by the delivery port of pipeline and oil water separator, oil-out; The port of export of water pot, aqueous phase centrifugal pump, strainer are connected successively by pipeline, the pipeline that aqueous phase centrifugal pump is connected with strainer are arranged aqueous phase master control valve; Oil tank, oil phase centrifugal pump, oil phase master control valve are connected by pipeline successively.
6. the horizontal well in segments completion according to claim 1-5 becomes a mandarin testing arrangement, it is characterized in that, oil mixing with water enters streaming system, be provided with three covers, often overlap oil mixing with water and enter streaming system and comprise: aqueous phase stream control valve, oil phase flow control valve, oil-water mixer, water cut meter, constant flow pump, arrival end thermometer, inlet port pressure meter, four-way; The aqueous phase arrival end of oil-water mixer, oil phase arrival end arrange aqueous phase stream control valve and oil phase flow control valve respectively, and aqueous phase stream control valve is connected with strainer by pipeline, and oil phase flow control valve is connected with oil phase master control valve by pipeline; The port of export of oil-water mixer is connected by pipeline with the entrance of constant flow pump, the pipeline that oil-water mixer is connected with constant flow pump is provided with water cut meter, and constant flow pump outlet, arrival end thermometer boss, inlet port pressure meter interface, inflow hole are connected with four-way interface.
7. the horizontal well in segments completion according to claim 1-6 becomes a mandarin testing arrangement, it is characterized in that, horizontal well in segments completion simulation wellbore hole system, comprising: simulation wellbore hole outer tube, center oil pipe, packing parts, port of export flow meter, port of export constant pressure valve, draining valve; Simulation wellbore hole outer tube is formed by connecting with this by three Steel Casings, and one end of simulation wellbore hole outer tube is blind end, another is openend, and blind end is provided with plug joint; Discharge orifice is set in the middle part of every root Steel Casing; Inflow hole is connected with four-way interface by pipeline; Center oil pipe is alternately formed by connecting by union by three joint blind pipes and three joint pre-hole pipes, and one end of center oil pipe is blind pipe end, and the other end is pre-nose end; Each union is arranged the temperature pick up to pipe inner opening and pressure sensor; The blind pipe end of center oil pipe is installed on the plug joint of simulation wellbore hole outer tube blind end, and pre-nose end arranges port of export constant pressure valve; In annular space between simulation wellbore hole outer tube and center oil pipe, arrange packing parts in Steel Casing joint location and position, simulation wellbore hole outer tube openend, port of export constant pressure valve, port of export flow meter, deceleration buffer flow container entrance are connected by pipeline successively; Near packing component locations, draining valve is set respectively bottom every root Steel Casing of simulation wellbore hole outer tube, is connected with the entrance in deceleration buffer flow container by pipeline; The oil water separator entrance that the outlet of deceleration buffer flow container pumps into system by pipeline and water-oil separating is connected.
8. a horizontal well in segments completion becomes a mandarin method of testing, horizontal well in segments completion described in claim 1-7 is adopted to become a mandarin testing arrangement, it is characterized in that, carry out horizontal well in segments completion when entering current test, according to horizontal well in segments completion experimental program, complete center oil pipe design to connect and horizontal wellbore simulation sectional well completion, opening controlling valve door, after check system, fluid inflow speed and the moisture content of well completion section is respectively simulated by the oil mixing with water Systematical control that becomes a mandarin, to horizontal well in segments completion simulation wellbore hole system feed flow, after flow parameter is stable, by temperature pick up and pressure sensor Real-time Collection records center oil pipe each section of pressure and temperature value, and draw wellbore pressure and the temperature profile of horizontal well in segments completion.
9. horizontal well in segments completion according to claim 8 becomes a mandarin method of testing, it is characterized in that, comprises system and connects preparation, systems inspection, enters current control, enters current test and parameter distribution profile drawing, specifically comprise the following steps:
S1: according to horizontal well in segments completion experimental program, the blind sieve structure combination of design centre oil pipe, mounting temperature sensor and pressure sensor on union, and connect blind pipe and pre-hole pipe organization center oil pipe, the blind pipe end of center oil pipe is installed on the plug joint of simulation wellbore hole outer tube blind end, and pre-nose end arranges port of export constant pressure valve; Toric space between simulation wellbore hole outer tube and center oil pipe, packing parts are set in Steel Casing joint location and position, simulation wellbore hole outer tube openend, complete horizontal wellbore segmentation, connect respective lines, and in water pot and oil tank, inject tap water and hybrid analog-digital simulation oil respectively, preparing experiment;
S2: open oil phase master control valve, oil phase flow control valve and port of export constant pressure valve, open centrifugal pump, strainer, oil-water mixer, constant flow pump and oil water separator, refuel to system, whether check system normally works;
S3: open aqueous phase master control valve and aqueous phase stream control valve, to become a mandarin moisture content schematic design value according to segmentation, regulate aqueous phase stream control valve and oil phase flow control valve, in oil-water mixer, profit is injected by flow proportional, form oil mixing with water fluid, demarcate oil mixing with water fluid moisture content by water cut meter;
S4: constant flow pump is according to being designed into Flow Velocity by inflow hole to the toric space feed flow between simulation wellbore hole outer tube and center oil pipe, Ji Lu not become a mandarin fluid temperature (F.T.) and fluid pressure by arrival end thermometer and inlet port pressure score, after port of export flow meter registration is stable, by temperature pick up and pressure sensor Real-time Collection record each segmentation pressure and temperature value;
S5: the flow speed value that becomes a mandarin regulating aqueous phase stream control valve and oil phase flow control valve, constant flow pump, repeats step S3-S5, enters next round determination experiment;
S6: test complete, close aqueous phase master control valve and oil phase master control valve, aqueous phase stream control valve and oil phase flow control valve, oil-water mixer, constant flow pump, port of export constant pressure valve successively, open draining valve and the delay waste liquid in device is discharged separation, close oil water separator;
S7: according to each section of pressure and temperature value of each experimental record, draws pressure and temperature profile figure in the pit shaft under the corresponding inflow profile of horizontal well in segments completion.
10. the horizontal well in segments completion according to Claim 8 described in-9 becomes a mandarin method of testing, it is characterized in that, by changing the conditions such as the blind sieve structure combination of each section of inflow velocity, moisture content and center oil pipe in experimentation, horizontal wellbore pressure, temperature variation situation under different geology and engineering specifications can be studied, thus reliably reflect the wellbore pressure under the different production profile of horizontal well in segments completion and the impact of water outlet degree and variations in temperature relation, can be developing water horizontal well water detection measuring technology and scientific basis is provided.
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| CN107044273A (en) * | 2017-04-07 | 2017-08-15 | 中国石油大学(华东) | Sand control pit shaft blocks the integrated evaluation experimental analogue means of de-plugging and method |
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