CN106482890B - A kind of test method of indirect measuring instrument suffered thrust in a fluid - Google Patents
A kind of test method of indirect measuring instrument suffered thrust in a fluid Download PDFInfo
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- CN106482890B CN106482890B CN201510534950.7A CN201510534950A CN106482890B CN 106482890 B CN106482890 B CN 106482890B CN 201510534950 A CN201510534950 A CN 201510534950A CN 106482890 B CN106482890 B CN 106482890B
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- analog meter
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Abstract
The invention discloses a kind of test methods of indirect measuring instrument suffered thrust in a fluid, are processed into simulation drilling rod using steel pipe, are connected by pipe fitting with big flow water supply pipe, intermediate to concatenate regulating valve and flowmeter again；The analog meter with cavity is loaded onto inside simulation drilling rod again；Regulating valve is opened, flow is constant, so that fluid forces analog meter is travelled forward, measures pressure values from the pressure gauge of analog meter tail end at the same time；Valve is closed, analog meter is opened, replaces plug position, keeps flow constant, measures the pressure values of analog meter tail end；Change flow and repeat same test, obtains different pressure values, thrust of the fluid to instrument when obtaining different flow.The present invention realizes to the measurement of the end force of moving body in liquid using the method for seal cavity transmitting pressure, acquires thrust suffered by moving body in liquid, reaches the long-range control by flow control realization to instrument thrust, avoids damaging instrument.
Description
Technical field
The present invention relates to fluid experiment field, the test side of specifically a kind of indirect measuring instrument suffered thrust in a fluid
Method.
Background technique
In horizontal wellbore logging, instrument is normally placed at drilling rod front end, heads on instrument by drilling rod and is fed forward, since instrument is
The instrument string being made of a variety of instruments, length is up to tens meters, and diameter is smaller, so during level promotes often
Be damaged instrument event.During instrument pumps out, when thrust is too small, instrument string cannot efficiently against frictional resistance,
Successfully instrument string is pumped out from drilling rod；When thrust is too big, instrument string pumping rate is too fast, can make instrument and stratum (or
It is the suspension step of the biggish part of instrument tip outer diameter with drilling rod exit) intense impact occurs, cause instrument damage.
Summary of the invention
The purpose of the present invention is to provide a kind of test methods of indirect measuring instrument suffered thrust in a fluid, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme:
A kind of test method of indirect measuring instrument suffered thrust in a fluid, specific test procedure are as follows:
(1) simulation drilling rod is processed into using steel pipe, is connected by pipe fitting with big flow water supply pipe, centre concatenates again
Regulating valve and flowmeter constitute water channel；
(2) analog meter with cavity is loaded onto inside simulation drilling rod again, simulation mud pumping out system is constituted, at this time in mould
The annular space formed between quasi- instrument and simulation drilling rod and the practical hydrodynamic characteristic for generating local pressure loss in underground of instrument are complete
It is complete consistent；
(3) regulating valve is opened, flow is constant in a fixed value, so that fluid forces analog meter is travelled forward, herein
Pressure values are measured from the pressure gauge of analog meter tail end simultaneously, the first plug of the end face A is opened in advance, analog meter tail end
Pressure gauge is surveyed as the end face A pressure p1(A)；Wherein, the end face A is the head end end face of analog meter；
(4) valve is closed, analog meter is opened, plug position is replaced, the first plug of the end face A is blocked, opens the end face B
Second plug, control valve keep flow identical as the flow in step (3), and the pressure gauge reading for measuring analog meter tail end is B
End face pressure p1(B), the corresponding thrust of this flow is F1It pushes away=F1(A)-F1(B)=p1(A)S(A)-p1(B)S(B)；
Wherein, the end face B is that the end face at variable diameter is closed in analog meter front end；S (A) is the end face A cross-sectional area；S (B) is B
The cross-sectional area of end face；
(5) change flow and repeat same test procedure (3) and step (4), analog meter movement is measured by pressure gauge
When simulation drilling rod in associated end face pressure, thrust suffered by analog meter when obtaining different flow；
(6) pressure of multiple partial points in simulation drilling rod is measured, by multiple pressure gauges in simulation drilling rod to obtain not
Pressure comparison and correction with the partial pressure value in simulation drilling rod when flow, when for same traffic；
(7) discharge orifice in simulation drilling rod is opened, the pressure difference before and after discharge orifice is measured；
(8) analog meter is still in the relative position in simulation drilling rod, changes flow and repeats same test procedure (3)
With step (4), obtain different flow it is static when instrument suffered by thrust magnitude.
As a further solution of the present invention: the internal diameter of the simulation drilling rod is 89mm.
Compared with prior art, the beneficial effects of the present invention are: the present invention is to convey instrument in drilling rod, drilling rod is arrived
Instrument is pumped out with slush pump after up to shaft bottom, can preferably play the role of protecting instrument；The present invention is by using seal cavity
The method for transmitting pressure, realizes the measurement to the end force of moving body in liquid, acquires suffered by moving body in liquid
Thrust is furthermore achieved the method on ground by the flow of control pump, carries out the long-range control to instrument thrust, thus and
When avoid damaging instrument.
Detailed description of the invention
Fig. 1 is pressure schematic diagram suffered by analog meter end face in the present invention.
Fig. 2 is the schematic diagram simulating the second plug of pumping out system in the present invention and shutting.
Fig. 3 is the schematic diagram simulating the first plug of pumping out system in the present invention and shutting.
Fig. 4 is the installation diagram that drilling tool and analog meter are simulated in the present invention.
In figure: 1- pressure gauge；The first plug of 2-；The second plug of 3-；4- analog meter；5- simulation drilling rod；6- flowmeter；7-
Regulating valve；8- water supplying pipe；9- pipe fitting；The end 10- pressure cap；11- pressure gauge connection；12- instrument pressure gauge connection；13- aerial drainage
Hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the embodiment of the present invention, a kind of test method of indirect measuring instrument suffered thrust in a fluid, specific test step
It is rapid as follows:
(1) simulation drilling rod is processed into using steel pipe, the internal diameter of simulation drilling rod is 89mm, passes through pipe fitting and big flow water supplying pipe
Road is connected, and centre concatenates regulating valve and flowmeter again, constitutes water channel；
(2) analog meter with cavity is loaded onto inside simulation drilling rod again, simulation mud pumping out system is constituted, such as Fig. 2 institute
Show, the annular space formed between analog meter and simulation drilling rod at this time and the practical fluid that local pressure loss is generated in underground of instrument
Mechanical characteristic is completely the same；
(3) regulating valve is opened, flow is constant in a fixed value, so that fluid forces analog meter is travelled forward, herein
Pressure values are measured from the pressure gauge 1 of analog meter tail end simultaneously, figure it is seen that first plug 2 of the end face A (Fig. 2) has mentioned
Front opening, the pressure gauge 1 of analog meter tail end are surveyed as the end face A pressure p1(A)；
(4) valve is closed, analog meter is opened, plug position is replaced, the first plug 2 at A is blocked, is opened second at B
It is identical as the flow in step (3) to make flow for plug 3 (Fig. 3), control valve, as shown in figure 3, measuring analog meter tail end
The reading of pressure gauge 1 is pressure p1 at B(B), due to p(C)=0, as shown in Figure 1,
The corresponding thrust of this flow is F1It pushes away=F1(A)-F1(B)=p1(A)S(A)-p1(B)S(B)；
(5) change flow and repeat same test procedure (3) and step (4), analog meter movement is measured by pressure gauge 1
When simulation drilling rod in associated end face pressure, thrust suffered by analog meter when obtaining different flow；
(6) pressure of multiple partial points in simulation drilling rod is measured, by multiple pressure gauges in simulation drilling rod to obtain not
With the partial pressure value in simulation drilling rod when flow, this value can be used as the reduced value of above-mentioned test, it can verifying analog meter
The surveyed numerical value of pressure gauge 1 of tail end；
(7) discharge orifice in simulation drilling rod is opened, the pressure difference before and after discharge orifice can be measured, to obtain discharge orifice opening
Influence situation to instrument thrust；
(8) analog meter is still in the relative position in simulation drilling rod, changes flow and repeats same test procedure (3)
With step (4), can be obtained different flow it is static when instrument suffered by thrust magnitude.
In horizontal well, analog meter is in same depth, is interlinked to the outside due to interior, static pressure phase inside and outside analog meter
Deng by the static pressure ρ gh of analog meter end C, the pressure F of generation(C)=S(C)ρ gh, and the pressure by B static pressure strong production
F(B)=S(B)ρ gh, the thrust F with the static pressure strong production at A(A)=S(A)ρ gh, this three power forms a resultant force, due to S(A)=
S(C)+S(B), wherein S (A) is the end face A cross-sectional area；S (B) is the cross-sectional area of the end face B；So F(A)=F(C)+F(B)The two is big
Small equal direction is on the contrary, offset each other；Therefore the result surveyed of ground is not influenced by underground water column static pressure, that is, with well depth
It is unrelated.
According to the relationship of this test measured flow and thrust, calculate flow value needed for pushing instrument, by pair
Well pump goes out to test in actual instrumentation, under the flow acquired, successfully pumps out instrument from drilling rod.
The present invention realizes the end force to moving body in liquid by using the method for seal cavity transmitting pressure
Measurement, the method on ground by the flow of control pump is furthermore achieved, carries out long-range control to instrument thrust.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (2)
1. a kind of test method of indirect measuring instrument suffered thrust in a fluid, which is characterized in that specific test procedure is as follows:
(1) simulation drilling rod is processed into using steel pipe, is connected by pipe fitting with big flow water supply pipe, centre concatenates adjusting again
Valve and flowmeter constitute water channel；
(2) analog meter with cavity is loaded onto inside simulation drilling rod again, simulation mud pumping out system is constituted, at this time in analog meter
The practical hydrodynamic characteristic complete one that local pressure loss is generated in underground of the annular space and instrument formed between device and simulation drilling rod
It causes；
(3) regulating valve is opened, flow is constant in a fixed value, so that fluid forces analog meter is travelled forward, at the same time
Pressure values are measured from the pressure gauge of analog meter tail end, the first plug of the end face A is opened in advance, the pressure of analog meter tail end
Table is surveyed as the end face A pressure p1(A)；Wherein, the end face A is the head end end face of analog meter；
(4) valve is closed, analog meter is opened, plug position is replaced, the first plug of the end face A is blocked, opens the second of the end face B
Plug, control valve keep flow identical as the flow in step (3), and the pressure gauge reading for measuring analog meter tail end is the end face B
Pressure p1(B), the corresponding thrust of this flow is F1It pushes away=F1 (A)-F1 (B)=p1(A)S(A)-p1(B)S(B)；
Wherein, the end face B is that the end face at variable diameter is closed in analog meter front end；S (A) is the end face A cross-sectional area；S (B) is the end face B
Cross-sectional area；
(5) change flow and repeat same test procedure (3) and step (4), mould when measuring analog meter movement by pressure gauge
The pressure of associated end face, thrust suffered by analog meter when obtaining different flow in quasi- drilling rod；
(6) pressure of multiple partial points in simulation drilling rod is measured, by multiple pressure gauges in simulation drilling rod to obtain not cocurrent flow
Partial pressure value when amount in simulation drilling rod, pressure comparison and correction when for same traffic；
(7) discharge orifice in simulation drilling rod is opened, the pressure difference before and after discharge orifice is measured；
(8) analog meter is still in the relative position in simulation drilling rod, changes flow and repeats same test procedure (3) and step
Suddenly (4), obtain different flow it is static when instrument suffered by thrust magnitude.
2. the test method of indirect measuring instrument according to claim 1 suffered thrust in a fluid, which is characterized in that institute
The internal diameter for stating simulation drilling rod is 89mm.
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| CN201510534950.7A CN106482890B (en) | 2015-08-27 | 2015-08-27 | A kind of test method of indirect measuring instrument suffered thrust in a fluid |
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| CN201510534950.7A CN106482890B (en) | 2015-08-27 | 2015-08-27 | A kind of test method of indirect measuring instrument suffered thrust in a fluid |
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| CN106482890A CN106482890A (en) | 2017-03-08 |
| CN106482890B true CN106482890B (en) | 2018-12-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111198058B (en) * | 2018-11-19 | 2021-05-14 | 中国石油化工股份有限公司 | Pushing force testing device |
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| JP2009025240A (en) * | 2007-07-23 | 2009-02-05 | Tohoku Univ | Optical differential pressure measuring method and optical differential pressure sensor |
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| CN204436364U (en) * | 2014-11-06 | 2015-07-01 | 中国石油化工股份有限公司 | Measure the device of the coefficient of sliding friction of drilling rod and sleeve pipe |
| CN104790938A (en) * | 2015-04-22 | 2015-07-22 | 中国石油集团渤海钻探工程有限公司 | Downhole drill thrust measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100703977B1 (en) * | 2005-08-02 | 2007-04-06 | 삼성전자주식회사 | Apparatus for test of valve and test method of solenoid valve and test method of venture valve |
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2015
- 2015-08-27 CN CN201510534950.7A patent/CN106482890B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009025240A (en) * | 2007-07-23 | 2009-02-05 | Tohoku Univ | Optical differential pressure measuring method and optical differential pressure sensor |
| CN101532897A (en) * | 2009-03-26 | 2009-09-16 | 云南大红山管道有限公司 | Long distance slurry pipeline transportation pressure detection system and detection method |
| CN204436364U (en) * | 2014-11-06 | 2015-07-01 | 中国石油化工股份有限公司 | Measure the device of the coefficient of sliding friction of drilling rod and sleeve pipe |
| CN104390736A (en) * | 2014-11-11 | 2015-03-04 | 山东科技大学 | Drilling cutting method intelligent detection system |
| CN104790938A (en) * | 2015-04-22 | 2015-07-22 | 中国石油集团渤海钻探工程有限公司 | Downhole drill thrust measuring device |
Non-Patent Citations (2)
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| 套管水平井测井输送技术;杨留强;《国外测井技术》;20131231(第198期);全文 * |
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