CN102758616B - Multi-point formation pressure measuring instrument - Google Patents
Multi-point formation pressure measuring instrument Download PDFInfo
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- CN102758616B CN102758616B CN201210193999.7A CN201210193999A CN102758616B CN 102758616 B CN102758616 B CN 102758616B CN 201210193999 A CN201210193999 A CN 201210193999A CN 102758616 B CN102758616 B CN 102758616B
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 241000309551 Arthraxon hispidus Species 0.000 claims description 11
- 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 6
- 238000002955 isolation Methods 0.000 abstract 4
- 238000009530 blood pressure measurement Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization 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
- 239000010959 steel Substances 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 negative pressure mechanism through a hole channel, and the upper portion of the hole channel 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 brill formation pressure testing technical field, particularly a kind of multiple spot formation pressure testing instrument.
Background technology:
Formation pore pressure is an important parameter of reservoir description, accurate understanding strata pressure can detect high pressure zone, determine that barometric gradient and fluid boundary, in real time adjustment drilling fluid density and Efficient Cycle density are with Drilling optimization, improve rate of penetration, safety pierces high pressure interval, optimize setting of casing and Completion Operations, EARLY RECOGNITION oil gas and amendment geological model etc.The Liaohe River enters mid-late oilfield development, needs to set up a whole set of strata pressure system for taping the latent power the geologic information provided with the exploitation of new layer accurately and timely in oil field.External to have Halliburton, Bake Hughes and Schlumberger three company to define at present respective with brill formation pressure testing technology and instrument series, and individual well service fee is expensive, and this type of instrument is not yet invented by other drilling well institutes domestic and universities and colleges at present.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of multiple spot formation pressure testing instrument, the arrangement achieves Measurement accuracy strata pressure parameter, improves drilling efficiency, reduces drilling phase risk.
The technical solution used in the present invention is: a kind of multiple spot formation pressure testing 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 inwall by top fastening bolt, comprehensive joint is fixed on stub boring quickly middle part by positioning bolt, pilot cylinder is arranged in comprehensive joint by stub boring sidewall opening quickly, isolating cylinder is sleeved on outside pilot cylinder, sealing stationary magazine creel is set with outside isolating cylinder, isolating cylinder seal receptacle and isolating cylinder Well-wall sealer circle, sealing stationary magazine creel is quickly threaded with stub boring, pressure gauge and negative pressure mechanism are by hole link, top, duct is connected with pilot cylinder with comprehensive joint, negative pressure mechanism comprises negative pressure cylinder woodruff key, negative pressure cylinder screws swivel nut, negative pressure cylinder connects sealing bolt cylinder, negative pressure valve piston cylinder, level pressure valve body, level pressure adjustment valve pocket, level pressure spring, negative pressure piston bar, negative pressure piston socket joint head, the large piston of negative pressure, the large piston cylinder of negative pressure, negative pressure spring, negative pressure cylinder 90 degree of two-ways are communicated with bolt with negative pressure cylinder low pressure, negative pressure cylinder screws swivel nut and is connected with comprehensive joint screw thread, negative pressure cylinder screws swivel nut lower end and is provided with negative pressure valve piston cylinder, negative pressure cylinder connection sealing bolt cylinder is placed in negative pressure cylinder and screws in swivel nut and negative pressure valve piston cylinder, negative pressure cylinder connects sealing bolt cylinder and is connected with comprehensive joint lower through-hole, the stub boring that negative pressure cylinder connects sealing bolt cylinder lower end is quickly provided with level pressure valve body with the sidewall opening place of negative pressure valve piston cylinder, level pressure adjustment valve pocket and level pressure spring, negative pressure piston bar is arranged in negative pressure valve piston cylinder, negative pressure piston socket joint head is placed in negative pressure valve piston cylinder lower end and is sleeved on negative pressure piston bar, negative pressure piston socket joint head is connected with the large piston cylinder of negative pressure, the large piston cylinder of negative pressure is built with the large piston of negative pressure and negative pressure spring, the large piston cylinder lower end of negative pressure is provided with negative pressure cylinder 90 degree of two-ways, negative pressure cylinder 90 degree of two-ways be arranged on the negative pressure cylinder low pressure of stub boring quickly on sidewall and be communicated with bolt and be connected, stub boring quickly lower end inner wall is provided with main spring seat, main spring seat is set with main spring, main spring is provided with throttling guide rail piston cylinder.
The invention has the beneficial effects as follows: the present invention, owing to have employed comprehensive joint and negative pressure mechanism, thus has the function of Measurement accuracy strata pressure parameter, easy to operate, improve drilling efficiency, reduce drilling phase risk.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing is structural representation of the present invention.
Detailed description of the invention:
As shown in drawings, a kind of multiple spot formation pressure testing 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 by top fastening bolt 12, comprehensive joint 2 is fixed on stub boring quickly in the middle part of 1 by positioning bolt 3, pilot cylinder 8 by stub boring quickly 1 sidewall opening be arranged in comprehensive joint 2, isolating cylinder 7 is sleeved on outside pilot cylinder 8, sealing stationary magazine creel 4 is set with outside isolating cylinder 7, isolating cylinder seal receptacle 5 and isolating cylinder Well-wall sealer circle 6, sealing stationary magazine creel 4 quickly 1 is threaded with stub boring, pressure gauge and negative pressure mechanism are by hole link, top, duct is connected with pilot cylinder 8 with comprehensive joint 2, negative pressure mechanism comprises negative pressure cylinder woodruff key 13, negative pressure cylinder screws swivel nut 14, negative pressure cylinder connects sealing bolt cylinder 15, negative pressure valve piston cylinder 16, level pressure valve body 24, level pressure adjustment valve pocket 25, level pressure spring 26, negative pressure piston bar 17, negative pressure piston socket joint head 18, the large piston 19 of negative pressure, the large piston cylinder 20 of negative pressure, negative pressure spring 21, negative pressure cylinder 90 degree of two-ways 22 are communicated with bolt 23 with negative pressure cylinder low pressure, negative pressure cylinder screws swivel nut 14 and is threaded with comprehensive joint 2, negative pressure cylinder screws swivel nut 14 lower end and is provided with negative pressure valve piston cylinder 16, negative pressure cylinder connection sealing bolt cylinder 15 is placed in negative pressure cylinder and screws in swivel nut 14 and negative pressure valve piston cylinder 16, negative pressure cylinder connects sealing bolt cylinder 15 and is connected with comprehensive joint 2 lower through-hole, the stub boring that negative pressure cylinder connects sealing bolt cylinder 15 lower end quickly 1 and the sidewall opening place of negative pressure valve piston cylinder 16 level pressure valve body 24 is installed, level pressure adjustment valve pocket 25 and level pressure spring 26, negative pressure piston bar 17 is arranged in negative pressure valve piston cylinder 16, negative pressure piston socket joint head 18 is placed in negative pressure valve piston cylinder 16 lower end and is sleeved on negative pressure piston bar 17, negative pressure piston socket joint head 18 is connected with the large piston cylinder 20 of negative pressure, the large piston cylinder of negative pressure 20 is built with the large piston 19 of negative pressure and negative pressure spring 21, negative pressure large piston cylinder 20 lower end is provided with negative pressure cylinder 90 degree of two-ways 22, negative pressure cylinder 90 degree of two-ways 22 be arranged on the negative pressure cylinder low pressure of stub boring quickly on 1 sidewall and be communicated with bolt 23 and be connected, stub boring quickly 1 lower end inner wall is provided with main spring seat 11, main spring seat 11 is set with main spring 10, main spring 10 is provided with throttling guide rail piston cylinder 9.
When the present invention works, suppress on top, promoted by throttling guide rail piston cylinder 9, extruding main spring 10, goes downwards to main spring seat 11 and stops.Fluid flows in negative pressure mechanism by negative pressure piston socket joint head 18, by the gap between negative pressure piston bar 17 and negative pressure piston socket joint head 18, promote negative pressure piston bar 17 and the large piston 19 of negative pressure respectively, both sides sectional area is different, produce different power, guide large for negative pressure piston 19 to negative pressure large piston cylinder 20 direction, and extrude negative pressure spring 21, piston cylinder internal flow flows into annular space by negative pressure cylinder 90 degree of two-ways 22; Occur negative pressure state in negative pressure valve piston cylinder 16 part, if negative pressure state is excessive, the inner little steel ball of level pressure valve body 24 will promote level pressure spring 26, and to stub boring, quickly 1 inside is mobile, guides circular hole fluid to enter negative pressure mechanism, balance internal pressure simultaneously.Surface pump starts, promote throttling guide rail piston cylinder 9 to move downward, isolating cylinder seal receptacle 5, isolating cylinder Well-wall sealer circle 6, isolating cylinder 7 run out stub boring quickly 1, and pushed against on the borehole wall, isolating cylinder Well-wall sealer circle 6 forms seal chamber near the borehole wall, isolating cylinder 7 gets into the borehole wall, under the effect of negative pressure mechanism, guides fluid to enter measuring instrument inside.After measurement completes, termination of pumping.Under main spring 10 acts on, throttling guide rail piston cylinder 9 is kept in the center, and isolating cylinder seal receptacle 5, isolating cylinder Well-wall sealer circle 6, isolating cylinder 7 run back stub boring quickly 1.Negative pressure spring 21 is by large for negative pressure piston 19 pushed home.Complete one-shot measurement.Under enter different depth and take multiple measurements rear proposition well head.Instrument ensures multiple spot formation pressure testing instrument invariant position when down-hole.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (1)
1. a multiple spot formation pressure testing 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 by top fastening bolt (12), it is characterized in that: comprehensive joint (2) is fixed on stub boring quickly (1) middle part by positioning bolt (3), pilot cylinder (8) is arranged in comprehensive joint (2) by the sidewall opening of stub boring quickly (1), isolating cylinder (7) is sleeved on pilot cylinder (8) outside, isolating cylinder (7) outside is set with sealing stationary magazine creel (4), isolating cylinder seal receptacle (5) and isolating cylinder Well-wall sealer circle (6), sealing stationary magazine creel (4) and stub boring quickly (1) are threaded, pressure gauge and negative pressure mechanism are by hole link, top, duct is connected with pilot cylinder (8) with comprehensive joint (2), negative pressure mechanism comprises negative pressure cylinder woodruff key (13), negative pressure cylinder screws swivel nut (14), negative pressure cylinder connects sealing bolt cylinder (15), negative pressure valve piston cylinder (16), level pressure valve body (24), level pressure adjustment valve pocket (25), level pressure spring (26), negative pressure piston bar (17), negative pressure piston socket joint head (18), the large piston of negative pressure (19), the large piston cylinder of negative pressure (20), negative pressure spring (21), negative pressure cylinder 90 degree of two-ways (22) are communicated with bolt (23) with negative pressure cylinder low pressure, negative pressure cylinder screws swivel nut (14) and is threaded with comprehensive joint (2), negative pressure cylinder screws swivel nut (14) lower end and is provided with negative pressure valve piston cylinder (16), negative pressure cylinder connection sealing bolt cylinder (15) is placed in negative pressure cylinder and screws in swivel nut (14) and negative pressure valve piston cylinder (16), negative pressure cylinder connects sealing bolt cylinder (15) and is connected with comprehensive joint (2) lower through-hole, the sidewall opening place that negative pressure cylinder connects stub boring quickly (1) and the negative pressure valve piston cylinder (16) of sealing bolt cylinder (15) lower end is provided with level pressure valve body (24), level pressure adjustment valve pocket (25) and level pressure spring (26), negative pressure piston bar (17) is arranged in negative pressure valve piston cylinder (16), negative pressure piston socket joint head (18) is placed in negative pressure valve piston cylinder (16) lower end and is sleeved on negative pressure piston bar (17), negative pressure piston socket joint head (18) is connected with the large piston cylinder of negative pressure (20), the large piston cylinder of negative pressure (20) is built with the large piston of negative pressure (19) and negative pressure spring (21), the large piston cylinder of negative pressure (20) lower end is provided with negative pressure cylinder 90 degree of two-ways (22), negative pressure cylinder 90 degree of two-ways (22) be arranged on the negative pressure cylinder low pressure of stub boring quickly on (1) sidewall and be communicated with bolt (23) and be connected, stub boring quickly (1) lower end inner wall is provided with main spring seat (11), main spring seat (11) is set with main spring (10), main spring (10) is provided with throttling guide rail piston cylinder (9).
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN102758616A CN102758616A (en) | 2012-10-31 |
| CN102758616B true CN102758616B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN115653579B (en) * | 2022-11-04 | 2024-05-14 | 西南石油大学 | Fixing device for stratum pressure rapid measuring instrument |
Citations (7)
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|---|---|---|---|---|
| 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 |
| CN201170093Y (en) * | 2007-09-18 | 2008-12-24 | 中国石油天然气股份有限公司 | Multi-point temperature and pressure dynamic monitoring instrument for 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 |
| 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 |
| CN201972694U (en) * | 2010-12-17 | 2011-09-14 | 中国石油集团长城钻探工程有限公司 | Bottom-hole pressure measuring device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7004252B2 (en) * | 2003-10-14 | 2006-02-28 | Schlumberger Technology Corporation | Multiple zone testing system |
| US7180826B2 (en) * | 2004-10-01 | 2007-02-20 | Teledrill Inc. | Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel |
| US8540035B2 (en) * | 2008-05-05 | 2013-09-24 | Weatherford/Lamb, Inc. | Extendable cutting tools for use in a wellbore |
-
2012
- 2012-06-13 CN CN201210193999.7A patent/CN102758616B/en not_active Expired - Fee Related
Patent Citations (7)
| 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 |
| CN201170093Y (en) * | 2007-09-18 | 2008-12-24 | 中国石油天然气股份有限公司 | Multi-point temperature and pressure dynamic monitoring instrument for 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 |
| 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 |
| CN201972694U (en) * | 2010-12-17 | 2011-09-14 | 中国石油集团长城钻探工程有限公司 | Bottom-hole pressure measuring device |
| 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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| CN102758616A (en) | 2012-10-31 |
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