CN102758616A - Multi-point formation pressure measuring instrument - Google Patents
Multi-point formation pressure measuring instrument Download PDFInfo
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- CN102758616A CN102758616A CN2012101939997A CN201210193999A CN102758616A CN 102758616 A CN102758616 A CN 102758616A CN 2012101939997 A CN2012101939997 A CN 2012101939997A CN 201210193999 A CN201210193999 A CN 201210193999A CN 102758616 A CN102758616 A CN 102758616A
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- 230000015572 biosynthetic process Effects 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 244000258271 Galium odoratum Species 0.000 claims description 3
- 235000008526 Galium odoratum Nutrition 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract 4
- 238000009530 blood pressure measurement Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The invention relates to the technical field of formation pressure measurement while drilling in oil fields, in particular to a multi-point formation pressure measuring instrument. A pressure gauge of the device is fixed on the inner wall of a short drill collar through an upper fastening bolt, a comprehensive joint is fixed in the middle of the short drill collar through a positioning bolt, a pressure guide cylinder is installed in the comprehensive joint through an opening in the side wall of the short drill collar, an isolation cylinder is sleeved outside the pressure guide cylinder, a sealing fixed cylinder, an isolation cylinder sealing seat and an isolation cylinder well wall sealing ring are sleeved outside the isolation cylinder, the sealing fixed cylinder is in threaded connection with the short drill collar, the pressure gauge is communicated with a hole passage through a negative pressure mechanism, and the upper portion of the hole passage is communicated with the comprehensive joint and the pressure guide cylinder. The invention realizes the accurate measurement of the formation pressure parameters, improves the drilling efficiency and reduces the risk in the drilling stage.
Description
Technical field:
The present invention relates to a kind of oil field with boring strata pressure field of measuring technique, particularly a kind of multiple spot strata pressure measuring instrument.
Background technology:
Formation pore pressure is an important parameter of reservoir description; Accurately understanding strata pressure can survey high pressure zone, confirms barometric gradient and fluid boundary, adjust drilling fluid density and effective circulating density to optimize drilling well in real time; Improve rate of penetration; Safety pierces the high pressure interval, optimizes setting of casing and completion process, EARLY RECOGNITION oil gas and modification geological model etc.The Liaohe River has got into the oil field development middle and later periods, and need set up a whole set of strata pressure system is that tap the latent power in the oil field and new layer exploitation provides geologic information accurately and timely.External have at present Halliburton, Bake Hughes and Schlumberger three companies formed separately with boring strata pressure measuring technique and instrument series, the individual well service fee is expensive, domestic other drilling well institutes and universities and colleges do not invent this kind tool as yet at present.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of multiple spot strata pressure measuring instrument, and this device has been realized accurate measurement strata pressure parameter, improves drilling efficiency, reduces the drilling phase risk.
The technical scheme that the present invention taked is: a kind of multiple spot strata pressure measuring instrument, comprise stub boring quickly, negative pressure mechanism, throttling guide rail piston cylinder, main spring and main spring seat; Pressure gauge is fixed on stub boring quickly on the inwall through the top fastening bolt; Comprehensive joint is fixed on stub boring middle part quickly through positioning bolt; The pilot tube is installed in the comprehensive joint through stub boring sidewall opening quickly; Isolating cylinder is sleeved on the pilot tube outside; The isolating cylinder outside is set with sealing and fixing tube, isolating cylinder seal receptacle and isolating cylinder Well-wall sealer circle, and the sealing and fixing tube quickly is threaded with stub boring, and pressure gauge is communicated with negative pressure mechanism porose road; Top, duct is connected with comprehensive joint and pilot tube; Negative pressure mechanism comprises that screw swivel nut, negative pressure cylinder of negative pressure cylinder woodruff key, negative pressure cylinder connects the logical and negative pressure cylinder low pressure of sealing bolt tube, negative pressure valve piston tube, level pressure valve body, level pressure adjustment valve pocket, level pressure spring, negative pressure piston rod, negative pressure piston cylinder joint, negative pressure big piston, negative pressure big piston tube, negative pressure spring, negative pressure cylinder 90 degree two and be communicated with bolts, and the negative pressure cylinder swivel nut of screwing is connected with comprehensive joint screw thread, and the negative pressure cylinder swivel nut lower end of screwing is provided with negative pressure valve piston tube; Negative pressure cylinder connects the sealing bolt tube and places negative pressure cylinder to screw in swivel nut and the negative pressure valve piston tube; Negative pressure cylinder connects the sealing bolt tube and is connected with comprehensive joint lower through-hole, and the stub boring that negative pressure cylinder connects sealing bolt tube lower end quickly is equipped with the level pressure valve body with the sidewall opening place of negative pressure valve piston tube, level pressure is adjusted valve pocket and level pressure spring, and the negative pressure piston rod is installed in the negative pressure valve piston tube; Negative pressure piston cylinder joint places negative pressure valve piston tube lower end and is sleeved on the negative pressure piston rod; Negative pressure piston cylinder joint is connected with negative pressure big piston tube, and negative pressure big piston and negative pressure spring are housed in the negative pressure big piston tube, and it is logical that negative pressure big piston tube lower end is equipped with negative pressure cylinder 90 degree two; Negative pressure cylinder 90 degree two logical be installed in stub boring quickly the negative pressure cylinder low pressure connection bolt on the sidewall be connected; Stub boring quickly lower end inwall is provided with the main spring seat, is set with main spring on the main spring seat, and throttling guide rail piston cylinder is installed on the main spring.
The invention has the beneficial effects as follows: the present invention has been owing to adopted comprehensive joint and negative pressure mechanism, thereby has the function of accurate measurement strata pressure parameter, and is easy to operate, improves drilling efficiency, reduction drilling phase risk.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment:
Shown in accompanying drawing, a kind of multiple spot strata pressure measuring instrument, comprise stub boring quickly 1, negative pressure mechanism, throttling guide rail piston cylinder 9, main spring 10 and main spring seat 11; Pressure gauge is fixed on stub boring quickly on 1 inwall through top fastening bolt 12; Comprehensive joint 2 is fixed on stub boring 1 middle part quickly through positioning bolt 3; Pilot tube 8 through stub boring quickly 1 sidewall opening be installed in the comprehensive joint 2; Isolating cylinder 7 is sleeved on pilot tube 8 outsides; Isolating cylinder 7 outsides are set with sealing and fixing tube 4, isolating cylinder seal receptacle 5 and isolating cylinder Well-wall sealer circle 6; Sealing and fixing tube 4 quickly 1 is threaded with stub boring; Pressure gauge is communicated with negative pressure mechanism porose road, and top, duct is connected with pilot tube 8 with comprehensive joint 2, and negative pressure mechanism comprises that screw swivel nut 14, negative pressure cylinder of negative pressure cylinder woodruff key 13, negative pressure cylinder connects sealing bolt tube 15, negative pressure valve piston tube 16, level pressure valve body 24, level pressure adjustment valve pocket 25, level pressure spring 26, negative pressure piston rod 17, negative pressure piston cylinder joint 18, negative pressure big piston 19, negative pressure big piston tube 20, negative pressure spring 21, negative pressure cylinder 90 degree two logical 22 and negative pressure cylinder low pressure and be communicated with bolt 23; The negative pressure cylinder swivel nut 14 of screwing is threaded with comprehensive joint 2; Negative pressure cylinder swivel nut 14 lower ends of screwing are provided with negative pressure valve piston tube 16, and negative pressure cylinder connects sealing bolt tube 15 and places negative pressure cylinder to screw in swivel nut 14 and the negative pressure valve piston tube 16, and negative pressure cylinder connects sealing bolt tube 15 and is connected with comprehensive joint 2 lower through-hole; The stub boring that negative pressure cylinder connects sealing bolt tube 15 lower ends quickly 1 is equipped with level pressure valve body 24, level pressure adjustment valve pocket 25 and level pressure spring 26 with the sidewall opening place of negative pressure valve piston tube 16; Negative pressure piston rod 17 is installed in the negative pressure valve piston tube 16, and negative pressure piston cylinder joint 18 places negative pressure valve piston tube 16 lower ends and is sleeved on the negative pressure piston rod 17, and negative pressure piston cylinder joint 18 is connected with negative pressure big piston tube 20; Negative pressure big piston 19 and negative pressure spring 21 are housed in the negative pressure big piston tube 20; It is logical 22 that negative pressure big piston tube 20 lower ends are equipped with negative pressure cylinder 90 degree two, negative pressure cylinder 90 degree two logical 22 be installed in stub boring quickly the negative pressure cylinder low pressure connection bolt 23 on 1 sidewall be connected, stub boring quickly 1 lower end inwall is provided with main spring seat 11; Be set with main spring 10 on the main spring seat 11, throttling guide rail piston cylinder 9 is installed on the main spring 10.
When the present invention works, suppress on top, throttling guide rail piston cylinder 9 is promoted, extruding main spring 10 goes downwards to main spring seat 11 and stops.Fluid is flowed in the negative pressure mechanism by negative pressure piston cylinder joint 18 places; Through the gap between negative pressure piston rod 17 and the negative pressure piston cylinder joint 18, promote negative pressure piston rod 17 and negative pressure big piston 19 respectively, the both sides sectional area is different; Produce different power; Negative pressure big piston 19 is guided to negative pressure big piston tube 20 directions, and extruding negative pressure spring 21, the piston cylinder internal flow flows into annular spaces by negative pressure cylinder 90 degree two logical 22; At negative pressure valve piston tube 16 part appearance of negative pressure conditions, if negative pressure state is excessive, level pressure valve body 24 inner little steel balls will promote level pressure spring 26 and quickly move 1 inside to stub boring simultaneously, and aimming circle orifice flow body gets into negative pressure mechanism, balance internal pressure.Surface pump starts; Promote throttling guide rail piston cylinder 9 and move downward, isolating cylinder seal receptacle 5, isolating cylinder Well-wall sealer circle 6, isolating cylinder 7 move out of stub boring quickly 1, and are pushed against on the borehole wall; Isolating cylinder Well-wall sealer circle 6 forms seal chamber near the borehole wall; Isolating cylinder 7 is got into the borehole wall, and under the effect of negative pressure mechanism, it is inner that the guiding fluid gets into measuring instrument.After measuring completion, termination of pumping.Throttling guide rail piston cylinder 9 is kept in the center under main spring 10 effect, and isolating cylinder seal receptacle 5, isolating cylinder Well-wall sealer circle 6, isolating cylinder 7 move back stub boring quickly 1.Negative pressure spring 21 is with negative pressure big piston 19 pushed home.Accomplish one-shot measurement.Be lowered to different depth and take multiple measurements back proposition well head.Instrument guarantees multiple spot strata pressure measuring instrument invariant position when the down-hole.
It is understandable that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (1)
1. a multiple spot strata pressure measuring instrument comprises stub boring quickly (1), negative pressure mechanism, throttling guide rail piston cylinder (9), main spring (10) and main spring seat (11); It is characterized in that: pressure gauge is fixed on stub boring quickly on (1) inwall through top fastening bolt (12); Comprehensive joint (2) is fixed on stub boring (1) middle part quickly through positioning bolt (3); Pilot tube (8) through stub boring quickly the sidewall opening of (1) be installed in the comprehensive joint (2); Isolating cylinder (7) is sleeved on pilot tube (8) outside; Isolating cylinder (7) outside is set with sealing and fixing tube (4), isolating cylinder seal receptacle (5) and isolating cylinder Well-wall sealer circle (6); Sealing and fixing tube (4) and stub boring quickly (1) are threaded; Pressure gauge is communicated with negative pressure mechanism porose road; Top, duct is connected with comprehensive joint (2) and pilot tube (8); Negative pressure mechanism comprises that screw swivel nut (14), negative pressure cylinder of negative pressure cylinder woodruff key (13), negative pressure cylinder connects sealing bolt tube (15), negative pressure valve piston tube (16), level pressure valve body (24), level pressure adjustment valve pocket (25), level pressure spring (26), negative pressure piston rod (17), negative pressure piston cylinder joint (18), negative pressure big piston (19), negative pressure big piston tube (20), negative pressure spring (21), negative pressure cylinder 90 degree two logical (22) and negative pressure cylinder low pressure connection bolt (23); The negative pressure cylinder swivel nut (14) of screwing is threaded with comprehensive joint (2); Negative pressure cylinder swivel nut (14) lower end of screwing is provided with negative pressure valve piston tube (16); Negative pressure cylinder connects sealing bolt tube (15) and places negative pressure cylinder to screw in swivel nut (14) and the negative pressure valve piston tube (16); Negative pressure cylinder connects sealing bolt tube (15) and is connected with comprehensive joint (2) lower through-hole, and quickly the sidewall opening place of (1) and negative pressure valve piston tube (16) is equipped with level pressure valve body (24) to the stub boring that negative pressure cylinder connects sealing bolt tube (15) lower end, level pressure is adjusted valve pocket (25) and level pressure spring (26), and negative pressure piston rod (17) is installed in the negative pressure valve piston tube (16); Negative pressure piston cylinder joint (18) places negative pressure valve piston tube (16) lower end and is sleeved on the negative pressure piston rod (17); Negative pressure piston cylinder joint (18) is connected with negative pressure big piston tube (20), and negative pressure big piston (19) and negative pressure spring (21) are housed in the negative pressure big piston tube (20), and negative pressure big piston tube (20) lower end is equipped with negative pressure cylinder 90 degree two logical (22); Negative pressure cylinder 90 degree two logical (22) be installed in stub boring quickly the negative pressure cylinder low pressure connection bolt (23) on (1) sidewall be connected; Stub boring quickly (1) lower end inwall is provided with main spring seat (11), is set with main spring (10) on the main spring seat (11), and throttling guide rail piston cylinder (9) is installed on the main spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193999.7A CN102758616B (en) | 2012-06-13 | 2012-06-13 | Multi-point formation pressure measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193999.7A CN102758616B (en) | 2012-06-13 | 2012-06-13 | Multi-point formation pressure measuring instrument |
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| CN102758616A true CN102758616A (en) | 2012-10-31 |
| CN102758616B CN102758616B (en) | 2014-12-17 |
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| CN201210193999.7A Expired - Fee Related CN102758616B (en) | 2012-06-13 | 2012-06-13 | Multi-point formation pressure measuring instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533394A (en) * | 2014-12-18 | 2015-04-22 | 中国航天科技集团公司烽火机械厂 | Formation pressure while drilling measuring device |
| CN108825211A (en) * | 2017-04-27 | 2018-11-16 | 中国石油化工股份有限公司 | Formation pressure testing balancing device and its measurement method |
| CN114645680A (en) * | 2020-12-21 | 2022-06-21 | 航天科工惯性技术有限公司 | Suspension type probe tube structure |
| CN115653579A (en) * | 2022-11-04 | 2023-01-31 | 西南石油大学 | Rapid formation pressure measuring instrument |
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| US6230557B1 (en) * | 1998-08-04 | 2001-05-15 | Schlumberger Technology Corporation | Formation pressure measurement while drilling utilizing a non-rotating sleeve |
| US20050077086A1 (en) * | 2003-10-14 | 2005-04-14 | Vise Charles E. | Multiple zone testing system |
| US20070104030A1 (en) * | 2004-10-01 | 2007-05-10 | Teledrill Inc. | Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel |
| CN201170093Y (en) * | 2007-09-18 | 2008-12-24 | 中国石油天然气股份有限公司 | Multi-point temperature pressure dynamic monitoring instrument of horizontal well |
| CN201292843Y (en) * | 2008-11-07 | 2009-08-19 | 大港油田集团有限责任公司 | Dropping and fetching downhole pressure measuring unit |
| US20100089583A1 (en) * | 2008-05-05 | 2010-04-15 | Wei Jake Xu | Extendable cutting tools for use in a wellbore |
| CN201851113U (en) * | 2010-11-21 | 2011-06-01 | 中国石油集团西部钻探工程有限公司 | Measuring and transmitting device for bottom-hole pressure, temperature, well deviation and azimuth data |
| CN102128026A (en) * | 2011-04-06 | 2011-07-20 | 北京六合伟业科技有限公司 | Formation pressure measuring device while drilling |
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-
2012
- 2012-06-13 CN CN201210193999.7A patent/CN102758616B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998096A (en) * | 1975-08-08 | 1976-12-21 | Institutul De Cercetari Si Proiectari Pentru Petrol Si Gaze | Subsurface differential pressure recorder |
| US6230557B1 (en) * | 1998-08-04 | 2001-05-15 | Schlumberger Technology Corporation | Formation pressure measurement while drilling utilizing a non-rotating sleeve |
| US20050077086A1 (en) * | 2003-10-14 | 2005-04-14 | Vise Charles E. | Multiple zone testing system |
| US20070104030A1 (en) * | 2004-10-01 | 2007-05-10 | Teledrill Inc. | Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel |
| CN201170093Y (en) * | 2007-09-18 | 2008-12-24 | 中国石油天然气股份有限公司 | Multi-point temperature pressure dynamic monitoring instrument of horizontal well |
| US20100089583A1 (en) * | 2008-05-05 | 2010-04-15 | Wei Jake Xu | Extendable cutting tools for use in a wellbore |
| CN201292843Y (en) * | 2008-11-07 | 2009-08-19 | 大港油田集团有限责任公司 | Dropping and fetching downhole pressure measuring unit |
| CN201851113U (en) * | 2010-11-21 | 2011-06-01 | 中国石油集团西部钻探工程有限公司 | Measuring and transmitting device for bottom-hole pressure, temperature, well deviation and azimuth data |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533394A (en) * | 2014-12-18 | 2015-04-22 | 中国航天科技集团公司烽火机械厂 | Formation pressure while drilling measuring device |
| CN104533394B (en) * | 2014-12-18 | 2019-03-12 | 四川航天烽火伺服控制技术有限公司 | One kind is with brill formation pressure testing device |
| CN108825211A (en) * | 2017-04-27 | 2018-11-16 | 中国石油化工股份有限公司 | Formation pressure testing balancing device and its measurement method |
| CN108825211B (en) * | 2017-04-27 | 2021-08-13 | 中国石油化工股份有限公司 | Formation pressure measurement balancing device and measurement method thereof |
| CN114645680A (en) * | 2020-12-21 | 2022-06-21 | 航天科工惯性技术有限公司 | Suspension type probe tube structure |
| CN115653579A (en) * | 2022-11-04 | 2023-01-31 | 西南石油大学 | Rapid formation pressure measuring instrument |
| CN115653579B (en) * | 2022-11-04 | 2024-05-14 | 西南石油大学 | Fixing device for stratum pressure rapid measuring instrument |
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| Publication number | Publication date |
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| CN102758616B (en) | 2014-12-17 |
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