CN102562032A - Fireflood is high temperature and high pressure tester in pit - Google Patents
Fireflood is high temperature and high pressure tester in pit Download PDFInfo
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- CN102562032A CN102562032A CN2010106222572A CN201010622257A CN102562032A CN 102562032 A CN102562032 A CN 102562032A CN 2010106222572 A CN2010106222572 A CN 2010106222572A CN 201010622257 A CN201010622257 A CN 201010622257A CN 102562032 A CN102562032 A CN 102562032A
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Abstract
The invention discloses a fireflood underground high-temperature and high-pressure tester, which comprises a vacuum flask and a tester main body consisting of a battery pack, a main control board, a heat absorption short section, a depth positioning component and a sensing component, wherein the main control board, the depth positioning component and the heat absorption short section are sequentially connected onto the sensing component to form a whole, and the tester also comprises: the centralizer is connected below the sensing component and used for ensuring that the tester is always positioned at the central position of a shaft of the fireflood well; the invention adds the depth positioning component and the centralizer, and improves the coincidence rate of the small-layer temperature and pressure data; meanwhile, the vacuum heat insulation space of the tester is increased, the underground continuous testing time is prolonged to 5-7.5 hours, and the number of testing points reaches 6-8.
Description
Technical field
The present invention relates to HTHP technical field of measurement and test under the oil fireflood development well, more particularly relate to a kind of fireflood down-hole HTHP tester.
Background technology
The fireflood exploitation is to utilize the heavy ingredient of minimum a part of crude oil (10%) in the oil reservoir to make fuel, and it is a kind of oil recovery by heating method that improves output to oil reservoir transmission heat and driving energy that combustion (of oil) insitu generates hotwork.In the fireflood process, because the fireflood well and the well downhole temperature that takes effect on every side are high, every mouthful of well surveying pilot position is many in the test process, and the follow-on test time is longer, uses General Instrument can't satisfy test request and often burn instrument; Burn does not have between target zone and the substratum obviously at a distance from interlayer in addition; Can't precisely confirm the down-hole degree of depth and corresponding with it temperature, it is unclear to cause temperature between adjacent substratum to be distinguished sometimes, can not be as the foundation of drawing up a plan for; Therefore influence the progress of measure, increased cost of production.
In realizing process of the present invention, the inventor finds that there is following shortcoming at least in prior art:
1, high temperature resistant time weak point can not satisfy the fireflood test request
Shown in Figure 1 is the ∮ 38 memory-type high-temperature electronic pressure testers of former use; Working time in 175～355 ℃ hot environment was no longer than 3.5 hours; And can only carry out 2～4 some tests to a bite well, can't get the temperature and pressure of complete all fire floors.
2, the test point degree of depth and ignition layer bit error are bigger
Rely on the tachometer of ground well testing winch configuration to confirm down-hole layer bit depth; Because machine error; There is some difference with the actual layer bit depth; Because factors such as the height of well head and lubricator and manual operation cause error further to strengthen, and the data that obtained can't be accurate to substratum, influence the judgement of igniting effect and the regulation and control of production simultaneously.
Summary of the invention
In order to realize institute's fire detecting is driven the accurate measurement of well; The embodiment of the invention provides a kind of fireflood down-hole HTHP tester, and its high temperature resistant time is long, can improve the number of times that a bite well is carried out a test; Improve the degree of accuracy of test data; Simultaneously, its dependable performance, easy to operate, cost-saved, said technical scheme is following:
A kind of fireflood down-hole HTHP tester comprises vacuum flask and tester main body, and said tester main body comprises battery pack, master control borad, depth localization assembly, bottom heat absorption pipe nipple, sensing element and the centralizer that series connection successively is fixedly connected; Said battery pack, master control borad and bottom heat absorption pipe nipple place in the said vacuum flask; Said tester main body is fixedly connected with said vacuum flask through the locking outer nut; The two ends of said depth localization assembly removably connect with the lower end of said master control borad and the upper end of bottom heat absorption pipe nipple respectively, are used to measure the layer bit depth of fireflood well; Said centralizer is fixed in the lower end of said sensing element, is used to guarantee that tester is in the center of fireflood well shaft all the time.
Said depth localization assembly is made up of resistant to elevated temperatures permanent magnet and coil, and said permanent magnet comprises top permanent magnet and bottom permanent magnet, and the two ends of said coil are fixedly connected with the bottom permanent magnet with said top permanent magnet respectively; The upper end of said top permanent magnet is fixedly connected with the lower end of said master control borad; The lower end of said bottom permanent magnet is fixedly connected with the upper end of said bottom heat absorption pipe nipple, when tester process sleeve pipe or tubing coupling, because the thickening of box cupling place tube wall; Variation of magnetizing mediums can cause the variation through the coil magnetic line of force around it; And the generation induced electromotive force through writing down faradic size, is obtained sleeve pipe or tubing coupling data.
Said centralizer comprises centralizer support, arc centralizer sheet and positioning screw hole; Be distributed with the chute that is provided with along its axis direction on the periphery of said centralizer support; Said arc centralizer sheet is individually fixed on the positioning screw hole in the said chute, can be according to the position of internal diameter size adjustment arc centralizer sheet in chute of fireflood well shaft.
Further, said chute is provided with four groups, becomes 90 degree to be distributed on the periphery of said centralizer support between the two adjacent groups chute, and the quantity of said chute equates with the quantity of said arc centralizer sheet.
Further, the upper end of said battery pack is fixed with top heat absorption pipe nipple, and said top heat absorption pipe nipple is not used to absorb because of vacuum flask is isolated fully and gets into its inner waste heat, keeps in the bottle up and down temperature consistent, guarantees the tester operate as normal.
The vacuum heat-insulation space of said vacuum flask is 800～1100 cubic centimetres.
The operating temperature range of said tester is-30 ℃～355 ℃, and its working pressure range is 0～40MPa.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
1) vacuum flask of the present invention; Its vacuum heat-insulation space has increased about 49% than the tester of prior art; Its effect of heat insulation is obviously increased, so just strengthened the heat-resisting ability of tester, test under the same conditions; The down-hole continuous operation testing time of tester of the present invention is brought up to 5～7.5 hours behind the employing said structure, and the number of test points of same well is increased to 6-8.
2) depth localization assembly and centralizer is provided with the coincidence rate that has improved substratum temperature and pressure data.
Following table is the temperature and pressure test case table of comparisons.
Existing tester is ∮ 38 testers in the last table, and tester of the present invention is ∮ 42 testers.
The degree of depth, temperature, pressure data that each substratum is corresponding are accurate and visual, and the data degree of accuracy improves 30%, and the damage probability of instrument reduces greatly simultaneously, formulate for fireflood adjustment measure and have played key effect.
3) tester dependable performance of the present invention, easy and simple to handle, use cost is low.Compare with former instrument, though every processing cost increases by 10,000 yuan, by burning 80,000 yuan of calculating of 3, every Instrument purchase cost of instrument every year less, directly wound is imitated and has been reached 210,000 yuan.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing φ 38 high-temperature electronic pressure tester structure charts;
Fig. 2 is a fireflood of the present invention down-hole HTHP tester structure chart.
Fig. 3 is depth localization assembly 10 structure charts among Fig. 2;
Fig. 4 is centralizer 9 structure charts among Fig. 2.
Among the figure:
1, rope socket 2, vacuum flask 3, battery pack 4, master control borad 5, bottom heat absorption pipe nipple 6, sensing element 7, starting taper 8, locking outer nut 9, centralizer 10, depth localization assembly 11, top heat absorption pipe nipple 12, coil 13, top permanent magnet 14, centralizer support 15, arc centralizer sheet 16, chute 17, positioning screw hole 18, bottom permanent magnet
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
As shown in Figure 2; The present invention includes vacuum flask 2 and tester main body; The upper end of vacuum flask 2 is provided with rope socket 1, and said tester main body comprises battery pack 3, master control borad 4, depth localization assembly 10, bottom heat absorption pipe nipple 5, sensing element 6, centralizer 9 and the starting taper 7 that series connection successively is fixedly connected; Said battery pack 3, master control borad 4, depth localization assembly 10 and bottom heat absorption pipe nipple 5 place in the vacuum flask 2, and the tester main body is fixedly connected on vacuum flask 2 through locking outer nut 8 connectors.The two ends of depth localization assembly 10 removably connect with the lower end of master control borad 4 and the upper end of bottom heat absorption pipe nipple 5 respectively, are used to measure the layer bit depth of fireflood well; Centralizer 9 is fixed in the lower end of sensing element 6, is used to guarantee that tester is in the center of fireflood well shaft all the time.
Because the lengthening of the down-hole time of staying; Temperature in the vacuum flask 2 also can correspondingly rise; A top heat absorption pipe nipple 11 is set above battery pack 3, and top heat absorption pipe nipple 11 can absorb because of the not isolated fully waste heat that gets in the bottle of vacuum flask 2, and a bottle interior temperature is not risen; And the temperature field is consistent up and down in the maintenance bottle, guarantees the tester operate as normal.
As shown in Figure 3, depth localization assembly 10 is made up of resistant to elevated temperatures permanent magnet and coil 12, and permanent magnet comprises top permanent magnet 13 and bottom permanent magnet 18, and the two ends of coil 12 are fixedly connected with bottom permanent magnet 18 with top permanent magnet 13 respectively; The upper end of top permanent magnet 13 is fixedly connected with the lower end of master control borad 4; The lower end of bottom permanent magnet 18 is fixedly connected with the upper end of bottom heat absorption pipe nipple 5, when tester process sleeve pipe or tubing coupling, because the thickening of box cupling place tube wall; Variation of magnetizing mediums can cause the variation through the coil magnetic line of force around it; And the generation induced electromotive force through writing down faradic size, is obtained sleeve pipe or tubing coupling data.
After test data of obtaining and the contrast of original well-log information are proofreaied and correct, can accurately obtain the degree of depth of each test layer position of this mouthful well, and the degree of depth obtains corresponding temperature, pressure data in view of the above, has improved the coincidence rate of each substratum temperature and pressure data greatly.
As shown in Figure 4; Centralizer 9 is made up of centralizer support 14, four arc centralizer sheets 15 and positioning screw hole 17; Be evenly equipped with four groups of chutes 16 that are provided with along its axis direction on the periphery of centralizer 9; Arc centralizer sheet 15 is individually fixed on the positioning screw hole 17 in the chute 16; Can be according to the position of internal diameter size adjustment arc centralizer sheet 15 in chute 16 of fireflood well shaft, the outermost that makes arc centralizer sheet 15 contacts with the inwall of pit shaft, guarantees that tester is in the wellbore centre position all the time.
Wherein the vacuum heat-insulation space of φ 42 tester vacuum flask is 800～1100 cubic centimetres, and the operating temperature range of tester is-30 ℃～355 ℃, and its working pressure range is 0～40MPa.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a fireflood down-hole HTHP tester comprises vacuum flask and tester main body, and said tester main body comprises battery pack, master control borad, depth localization assembly, bottom heat absorption pipe nipple, sensing element and the centralizer that series connection successively is fixedly connected; Said battery pack, master control borad and bottom heat absorption pipe nipple place in the said vacuum flask, and said tester main body is fixedly connected with said vacuum flask through the locking outer nut,,
The two ends of said depth localization assembly removably connect with the lower end of said master control borad and the upper end of bottom heat absorption pipe nipple respectively, are used to measure the layer bit depth of fireflood well; Said centralizer is fixed in the lower end of said sensing element, is used to guarantee that tester is in the center of fireflood well shaft all the time.
It is characterized in that:
Said depth localization assembly is made up of resistant to elevated temperatures permanent magnet and coil, and said permanent magnet comprises top permanent magnet and bottom permanent magnet, and the two ends of said coil are fixedly connected with the bottom permanent magnet with said top permanent magnet respectively; The upper end of said top permanent magnet is fixedly connected with the lower end of said master control borad; The lower end of said bottom permanent magnet is fixedly connected with the upper end of said bottom heat absorption pipe nipple; When tester passes through the box cupling of sleeve pipe or oil pipe, obtain sleeve pipe or tubing coupling data according to the variation of coil flux amount.
2. fireflood according to claim 1 down-hole HTHP tester is characterized in that:
Said centralizer comprises centralizer support, arc centralizer sheet and positioning screw hole; Be distributed with the chute that is provided with along its axis direction on the periphery of said centralizer support; Said arc centralizer sheet is individually fixed on the positioning screw hole in the said chute, can be according to the position of internal diameter size adjustment arc centralizer sheet in chute of fireflood well shaft.
3. fireflood according to claim 2 down-hole HTHP tester is characterized in that:
Said chute is provided with four groups, becomes 90 degree to be distributed on the periphery of said centralizer support between the two adjacent groups chute, and the quantity of said chute equates with the quantity of said arc centralizer sheet.
4. according to the arbitrary described fireflood of claim 1-3 down-hole HTHP tester, it is characterized in that:
The upper end of said battery pack also is fixed with top heat absorption pipe nipple, and said top heat absorption pipe nipple is not used to absorb because of vacuum flask is isolated fully and gets into its inner waste heat, keeps in the bottle up and down temperature consistent, guarantees the tester operate as normal.
5. fireflood according to claim 4 down-hole HTHP tester is characterized in that:
The vacuum heat-insulation space of said vacuum flask is 800～1100 cubic centimetres.
6. fireflood according to claim 5 down-hole HTHP tester is characterized in that:
The operating temperature range of said tester is-30 ℃～355 ℃, and its working pressure range is 0～40MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010622257.2A CN102562032B (en) | 2010-12-27 | 2010-12-27 | Fireflood is high temperature and high pressure tester in pit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010622257.2A CN102562032B (en) | 2010-12-27 | 2010-12-27 | Fireflood is high temperature and high pressure tester in pit |
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| CN102562032A true CN102562032A (en) | 2012-07-11 |
| CN102562032B CN102562032B (en) | 2015-06-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547609A (en) * | 2018-03-27 | 2018-09-18 | 中国海洋石油集团有限公司 | A kind of throwing survey type underground temperature measurer and underground circulating temperature measuring system |
Citations (8)
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| US5002124A (en) * | 1990-06-21 | 1991-03-26 | Research Institute Of Drilling & Production Tech. | Underground temperature and pressure measuring system for hot-exploiting oil well |
| CN2405010Y (en) * | 1999-12-16 | 2000-11-08 | 于立君 | High temp. fluid prodn. section survey instrument for hot oil prodn. well |
| CN2650070Y (en) * | 2003-07-16 | 2004-10-20 | 陈小安 | Throwing-stick temperature and pressure measuring instrument |
| CN2742136Y (en) * | 2004-06-02 | 2005-11-23 | 中国石油天然气股份有限公司 | Five-parameter steam-absorption profile combined logging instrument for high-temperature steam injection well |
| CN201068793Y (en) * | 2007-08-16 | 2008-06-04 | 西安威盛电子仪器有限公司 | Large wellbore magnetic positioning logging tool |
| CN201202469Y (en) * | 2008-06-02 | 2009-03-04 | 马冬兰 | Depth Calibration Temperature and Pressure Tester for Thermal Recovery Horizontal Well |
| CN201232546Y (en) * | 2008-08-01 | 2009-05-06 | 马冬兰 | Anti winding high-temperature eccentric wellhead tester |
| CN101749007A (en) * | 2009-12-11 | 2010-06-23 | 中国石油集团长城钻探工程有限公司 | High-temperature cable direct-reading five-parameter logging instrument |
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2010
- 2010-12-27 CN CN201010622257.2A patent/CN102562032B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5002124A (en) * | 1990-06-21 | 1991-03-26 | Research Institute Of Drilling & Production Tech. | Underground temperature and pressure measuring system for hot-exploiting oil well |
| CN2405010Y (en) * | 1999-12-16 | 2000-11-08 | 于立君 | High temp. fluid prodn. section survey instrument for hot oil prodn. well |
| CN2650070Y (en) * | 2003-07-16 | 2004-10-20 | 陈小安 | Throwing-stick temperature and pressure measuring instrument |
| CN2742136Y (en) * | 2004-06-02 | 2005-11-23 | 中国石油天然气股份有限公司 | Five-parameter steam-absorption profile combined logging instrument for high-temperature steam injection well |
| CN201068793Y (en) * | 2007-08-16 | 2008-06-04 | 西安威盛电子仪器有限公司 | Large wellbore magnetic positioning logging tool |
| CN201202469Y (en) * | 2008-06-02 | 2009-03-04 | 马冬兰 | Depth Calibration Temperature and Pressure Tester for Thermal Recovery Horizontal Well |
| CN201232546Y (en) * | 2008-08-01 | 2009-05-06 | 马冬兰 | Anti winding high-temperature eccentric wellhead tester |
| CN101749007A (en) * | 2009-12-11 | 2010-06-23 | 中国石油集团长城钻探工程有限公司 | High-temperature cable direct-reading five-parameter logging instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547609A (en) * | 2018-03-27 | 2018-09-18 | 中国海洋石油集团有限公司 | A kind of throwing survey type underground temperature measurer and underground circulating temperature measuring system |
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| CN102562032B (en) | 2015-06-03 |
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