CN100445741C - Intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation - Google Patents
Intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation Download PDFInfo
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- CN100445741C CN100445741C CNB200510019252XA CN200510019252A CN100445741C CN 100445741 C CN100445741 C CN 100445741C CN B200510019252X A CNB200510019252X A CN B200510019252XA CN 200510019252 A CN200510019252 A CN 200510019252A CN 100445741 C CN100445741 C CN 100445741C
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Abstract
The present invention relates to an intellectual high-temperature high-pressure dynamic leak stopping evaluation device which belongs to the field of oil exploration and development excremental devices. The present invention is composed of a gas source, a mud pump, a piston-type high-temperature high-pressure mud bottle, a steel leak bed holder, a slit plate holder, a rock core holder, a flowmeter, an electronic balance, a ring pressure pump, a return pressure controller, a liquid circulating pipe, a control line, a data collector, a computer, a printer, etc. The present invention fills the drilling fluid and well completion fluid of a leak stopping agent into the mud bottle under the condition of temperature, pressure, flow speed of the simulated formation, and well inlet fluid in the piston-type high-temperature high-pressure mud bottle is driven by the mud pump to carry out manmade leak stopping damage experiment to a steel leak bed, an artificial slit plate and the stratum rock core to realize the indoor correct evaluation of the leak stopping effect of the drilling fluid and the well completion fluid. Accordingly, a drilling fluid and well completion fluid system which can satisfy the requirements of protecting oil and gas layers can be well selected. The present invention solves the problem that the dynamic leak stopping evaluation can not be carried out indoors, and is suitable for the evaluation experiment of oil exploration and development.
Description
Affiliated technical field:
The present invention relates under a kind of petroleum industry lab simulation formation temperature, pressure, the mud flow state the stifled intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation of imitating of lost circulation material in the appraisal drilling liquid and well completion fluid, belong to reservoir protection experimental facilities field in the petroleum exploration and development.
Background technology:
In drilling process, the phenomenon of formation leakage often appears, will have a strong impact on normally carrying out of drilling operation as the untimely drop ply of blocking.Factors such as the kind of the lost circulation material that adds in formation leakage situation and physical properties of rock, bottom hole pressure difference, the mud, size are closely related.At present, all have only API indoor static leak stopping evaluation experimental provision both at home and abroad, steel ball leaks the bottom that bed is installed in mud tank, and its position is unreasonable, and the length of seam plate has only 6.4mm, and or smooth plane.Because the position and the unreasonable structure of leakage bed and seam plate can not be simulated the actual conditions on leakage stratum truly, and steel ball leakage bed is tested and is stitched firm and hard testing and can not carry out simultaneously.Because a lot of oil fields of China formation leakage phenomenon in drilling process is very general, develop a kind of can being very important at the exploration and development of the plugging effect of testing evaluation lost circulation material under lab simulation bottom temperature, pressure and the liquid recurrent state to the oil field.
Summary of the invention:
The objective of the invention is to: provide a kind of can be truly in lab simulation down-hole formation condition; use the High Temperature High Pressure steam piano; form shear rate by pipeline at the rock core end face that steel ball leaks bed, artificial seam plate, core holding unit; thereby it is good to filter out plugging effect, the drilling fluid that protection hydrocarbon zone effect is good and the intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation of completion fluid formulation.
The present invention realizes above-mentioned purpose by following technical solution:
This intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation leaks bed clamper, seam plate clamper, core holding unit, flowmeter, electronic balance, glass cylinder, ring press pump, back pressure controller, gas boosting pipeline, housing, control line, data acquisition unit, liquid circulating pipe road, computing machine and printer etc. by source of the gas, high-pressure pressure-reducing valve, steam piano, piston high-temperature high-pressure slurry jar, steel ball partly to be formed; It is characterized in that: piston high-temperature high-pressure slurry jar, steam piano place lower part of frame, the top of housing is equipped with steel ball and is leaked bed clamper, seam plate clamper and core holding unit, the right-hand member of core holding unit is connected with back pressure controller, electronic balance and ring press pump by the gas boosting pipeline, and the right-hand member that seam plate clamper and steel ball leak the bed clamper respectively is connected with a glass cylinder by pipeline; Source of the gas, high-pressure pressure-reducing valve, data acquisition unit, computing machine and printer place the both sides external of housing respectively, and source of the gas is connected on the gland of piston high-temperature high-pressure slurry jar and on the back pressure controller by high-pressure pressure-reducing valve and gas capstan; Steam piano, electronic balance, flowmeter, piston high-temperature high-pressure slurry jar, core holding unit, seam plate clamper and steel ball leak the bed clamper and are connected with data acquisition unit by control line, and data acquisition unit is connected with computing machine and printer by control line; Seam plate clamper, steel ball leak the left end of bed clamper and core holding unit by slurry channel and liquid circulation channel of liquid circulating pipe road composition.Piston high-temperature high-pressure slurry pot bottom adopts the two-layer pipe of overcoat pipe box inner sleeve, the liquid circulating pipe road that is connected with piston high-temperature high-pressure slurry pot bottom by steam piano is an outer tube, the liquid circulating pipe road that is connected with piston high-temperature high-pressure slurry pot bottom by flowmeter is an inner sleeve, the end of outer tube is concordant with piston high-temperature high-pressure slurry pot bottom, and the end of inner sleeve exceeds bottom 3-5 centimetre of mud tank.The rock core fixed bar is housed in the left end of core holding unit and has slurry channel; Rubber tube and rock core are equipped with in the centre; The rock core adjuster bar is housed in the right-hand member, and is shaped on ring and compresses into mouth.The left end of seam plate clamper has slurry channel, and the seam plate is equipped with in the centre, and seam plate adjuster bar is housed in the right-hand member, on the seam plate adjuster bar mud outlet valve is housed.The left end that steel ball leaks the bed clamper has slurry channel, and two steel ball baffle plates and steel ball are equipped with in the centre; The baffle plate adjuster bar is housed in the right-hand member, the mud outlet valve is housed on the baffle plate adjuster bar.
The present invention compared with prior art has following beneficial effect:
The present invention can be truly in the condition of lab simulation down-hole formation temperature, pressure and rate of flow of fluid; adopt the High Temperature High Pressure steam piano that experimental liquid is leaked bed, seam plate and rock core end face by the liquid circulating pipe road at steel ball and form shear rate; during online record simulation drilling condition; steel ball leaks the leak-off situation of bed, seam plate and rock core; and they are carried out leak stopping evaluation test, thereby filter out good and good drilling fluid, the completion fluid system of protection hydrocarbon zone effect of plugging effect with dynamically polluting.Scientific research to petroleum exploration and development has important directive significance with production.
Description of drawings:
Fig. 1 is the connection synoptic diagram of intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation;
Fig. 2 is the structural representation of intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation;
Fig. 3 is the syndeton synoptic diagram of piston high-temperature high-pressure slurry jar and outer tube and inner sleeve;
Fig. 4 is the structural representation of core holding unit;
Fig. 5 is the structural representation of seam plate clamper;
Fig. 6 leaks the structural representation of bed clamper for steel ball.
Among the figure: 1. source of the gas, 2. high-pressure pressure-reducing valve, 3. piston high-temperature high-pressure slurry jar, 4. steam piano, 5. flowmeter, 6. ring press pump, 7. stitch the plate clamper, 8. steel ball leaks bed clamper, 9. a back pressure controller, 10. electronic balance, 11. glass cylinders, 12. data acquisition units, 13. computing machine and printer, 14. core holding units, 15. gas boosting pipelines, 16. housing, 17. control lines, 18. glands, 19. valve, 20. pistons, 21. experimental liquids, 22. outer tube, 23. inner sleeves, 24. rock core fixed bars, 25. slurry channel, 26. rubber tubes, 27. rock cores, 28. the rock core adjuster bar, 29. rings are compressed into mouth, 30. seam plates, 31. seam plate adjuster bar, 32. mud outlet valves, 33. steel balls, 34. the steel ball baffle plate, 35. baffle plate adjuster bars, 36. liquid circulating pipe roads.
Embodiment:
This intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation is by source of the gas 1, high-pressure pressure-reducing valve 2, piston high-temperature high-pressure slurry jar 3, steam piano 4, flowmeter 5, ring press pump 6, seam plate clamper 7, steel ball leaks bed clamper 8, back pressure controller 9, electronic balance 10, glass cylinder 11, data acquisition unit 12, computing machine and printer 13, core holding unit 14, gas boosting pipeline 15, housing 16, control line 17, gland 18, valve 19, piston 20, outer tube 22, inner sleeve 23, rock core fixed bar 24, slurry channel 25, rubber tube 26, rock core 27, rock core adjuster bar 28, ring is compressed into mouth 29, seam plate 30, seam plate adjuster bar 31, mud outlet valve 32, steel ball 33, steel ball baffle plate 34, baffle plate adjuster bar 35, liquid circulating pipe road 36 is formed.
During experiment, get artificial or natural rock core 27 and be contained in the core holding unit 14, compress into mouthful 29 pairs of core holding units 14 with ring press pump 6 by ring and add the ring pressure, and pass through the top hole pressure of rock core 27 in the back pressure controller 9 control core holding units 14.Artificial seam plate 30 is packed in the seam plate clamper 7, steel ball 33 steel ball of packing into is leaked between two steel ball baffle plates 34 of bed clamper 8, and the position after packing into by rock core adjuster bar 28, seam plate adjuster bar 31 and 35 pairs of rock cores 27 of baffle plate adjuster bar, seam plate 30 and steel ball 33 regulates, to reach requirement of experiment.The experimental liquid 21 that contains lost circulation material is packed in the piston high-temperature high-pressure slurry jar 3, running by the computer control steam piano 4 in computing machine and the printer 13, mud in the piston high-temperature high-pressure slurry jar 3 is circulated, the condition of the rate of flow of fluid in shaft bottom when making it reach the simulation drilling well in airtight liquid circulating pipe road 36.Open high-pressure air source 1 then, source of the gas 1 to 20 pressurizations of the piston in the piston high-temperature high-pressure slurry jar 3, is used for simulated formation pressure by high-pressure pressure-reducing valve 2 backs.The liquid circulating pipe road 36 that piston high-temperature high-pressure slurry jar 3, core holding unit 14, seam plate clamper 7, steel ball leak bed clamper 8 and connect them all has heating arrangement, is used for the simulated formation temperature.The left end that leaks bed clamper 8, core holding unit 14 at seam plate clamper 7, steel ball is formed a liquid circulation channel by slurry channel 25 on it and liquid circulating pipe road 36, and this passage is communicated with steam piano 4 and piston high-temperature high-pressure slurry jar 3; Under the effect of source of the gas 1, by the piston 20 in the piston high-temperature high-pressure slurry jar 3, give airtight liquid circulation channel pressurization, can make experimental liquid 21 under the condition of formation temperature, pressure and the flow velocity identical of simulation with the actual well drilled conditionally complete, the end face that seam plate 30 in the opposite joint plate clamper 7, the rock core 27 in the core holding unit 14 and steel ball leak the steel ball 33 in the bed clamper 8 forms shearing, can accurately measure the shear line speed of each end face by flowmeter 5, and adjust at any time to guarantee that experiment is to carry out under the condition identical with actual well drilled.Experimental liquid 21 opposite joint plates 30, rock core 27 and steel ball 33 in liquid circulation channel carries out in the end face shearing, experimental liquid 21 carries out leak-off to rock core 27, seam plate 30 and steel ball 33 respectively again when the slurry channel 25 that leaks by core holding unit 14, seam plate clamper 7 and steel ball on the bed clamper 8, by the observation of electronic balance 10 and glass cylinder 11, can draw the plugging effect of 21 pairs of rock cores 27 of experimental liquid, seam plate 30 and steel ball 33.By change to lost circulation material type in the experimental liquid 21; the row filter evaluation of going forward side by side; and compare back by computing machine by printer output to the leak-off situation of rock core 27, seam plate 30 and steel ball 33; select the lost circulation material of filter loss minimum; can be implemented in the plugging effect of lost circulation material in indoor correct appraisal drilling liquid and the well completion fluid; thereby it is good to optimize plugging effect, and can satisfy drilling fluid and completion fluid system that the protection hydrocarbon zone requires.
In the time only need carrying out individual event or two leak stopping evaluation experiments, can realize by the mud outlet valve 32 that open and close core holding unit 14, seam plate clamper 7 and steel ball leak on the bed clamper 8 to rock core 27, seam plate 30 and steel ball 33.
Claims (5)
1. intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation, it leaks a bed clamper (8), seam plate clamper (7), core holding unit (14), flowmeter (5), electronic balance (10), glass cylinder (11), ring press pump (6), back pressure controller (9), gas boosting pipeline (15), housing (16), control line (17), data acquisition unit (12), liquid circulating pipe road (36) by source of the gas (1), high-pressure pressure-reducing valve (2), steam piano (4), piston high-temperature high-pressure slurry jar (3), steel ball and forms with computing machine and printer (13).It is characterized in that: piston high-temperature high-pressure slurry jar (3), steam piano (4) place the bottom in the housing (16), top in the housing (16) is equipped with steel ball and is leaked bed clamper (8), seam plate clamper (7) and core holding unit (14), the right-hand member of core holding unit (14) is connected with back pressure controller (9), electronic balance (10) and ring press pump (6) by gas boosting pipeline (15), and the right-hand member that seam plate clamper (7) and steel ball leak bed clamper (8) respectively is connected with a glass cylinder (11) by pipeline; Source of the gas (1), high-pressure pressure-reducing valve (2), data acquisition unit (12), computing machine and printer (13) place the both sides external of housing (16) respectively, the gland (18) that source of the gas (1) is connected piston high-temperature high-pressure slurry jar (3) by high-pressure pressure-reducing valve (2) and gas capstan (15) go up and back pressure controller (9) on; Steam piano (4), electronic balance (10), flowmeter (5), piston high-temperature high-pressure slurry jar (3), core holding unit (14), seam plate clamper (7) and steel ball leak bed clamper (8) and are connected with data acquisition unit (12) by control line (17), and data acquisition unit (12) is connected with computing machine and printer (13) by control line (17); Seam plate clamper (7), core holding unit (14) and steel ball leak the left end of bed clamper (8) by slurry channel (25) and liquid circulation channel of liquid circulating pipe road (36) composition.
2, intelligent high-temperature high-voltage dynamic leak stopping evaluation instrument according to claim 1, it is characterized in that: the two-layer pipe of outer tube (22) cover inner sleeve (23) is adopted in described piston high-temperature high-pressure slurry jar (3) bottom, is outer tube (22) by steam piano (4) with the liquid circulating pipe road (36) that piston high-temperature high-pressure slurry jar (3) bottom is connected, is inner sleeve (23) by flowmeter (5) with the liquid circulating pipe road (36) that piston high-temperature high-pressure slurry jar (3) bottom is connected, the end of outer tube (22) is concordant with the bottom of piston high-temperature high-pressure slurry jar (3), and the end of inner sleeve (23) exceeds bottom 3-5 centimetre of mud tank.
3, intelligent high-temperature high-voltage dynamic leak stopping evaluation instrument according to claim 1 is characterized in that: the left end of described core holding unit (14) is equipped with rock core fixed bar (24) and has slurry channel (25); Rubber tube (26) and rock core (27) are equipped with in the centre; Right-hand member is equipped with rock core adjuster bar (28), and has ring and compress into mouthful (29).
4, intelligent high-temperature high-voltage dynamic leak stopping evaluation instrument according to claim 1, it is characterized in that: the left end of described seam plate clamper (7) has slurry channel (25), seam plate (30) is equipped with in the centre, on the seam plate adjuster bar (31) mud outlet valve (32) is housed.
5, intelligent high-temperature high-voltage dynamic leak stopping evaluation instrument according to claim 1 is characterized in that: the left end that described steel ball leaks bed clamper (8) has slurry channel (25), and two steel ball baffle plates (34) and steel ball (33) are equipped with in the centre; Baffle plate adjuster bar (35) is housed in the right-hand member, mud outlet valve (32) is housed on the baffle plate adjuster bar (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200510019252XA CN100445741C (en) | 2005-08-08 | 2005-08-08 | Intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation |
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| CNB200510019252XA CN100445741C (en) | 2005-08-08 | 2005-08-08 | Intelligent high-temperature high-voltage experimental instrument for dynamic leak stopping evaluation |
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| CN100445741C true CN100445741C (en) | 2008-12-24 |
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| CN112684112A (en) * | 2020-12-18 | 2021-04-20 | 中国石油天然气集团有限公司 | Leakage-layer-simulating dynamic pressure-bearing leakage-stopping instrument |
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Owner name: JINGZHOU CITY HYUNDAI PETROLEUM TECHNOLOGY DEVELOP Free format text: FORMER OWNER: YU WEICHU Effective date: 20090731 |
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Effective date of registration: 20090731 Address after: No. 6 Jinsha Road Development Zone Jingzhou city Hubei Province Patentee after: Jingzhou Modern Oil S&T Co., Ltd. Address before: School of chemical and environmental engineering, Yangtze University, No. 1 South Ring Road, Hubei, Jingzhou Patentee before: Yu Weichu |
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Granted publication date: 20081224 Termination date: 20110808 |