CN201391314Y - Measuring device for insert depth of proppant - Google Patents
Measuring device for insert depth of proppant Download PDFInfo
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- CN201391314Y CN201391314Y CN200920079958U CN200920079958U CN201391314Y CN 201391314 Y CN201391314 Y CN 201391314Y CN 200920079958 U CN200920079958 U CN 200920079958U CN 200920079958 U CN200920079958 U CN 200920079958U CN 201391314 Y CN201391314 Y CN 201391314Y
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- proppant
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Abstract
The utility model relates to a measuring device for insert depth of proppant. The measuring device is applied to fracture during the developing process of oil-gas fields and mainly consists of a horizontal flow pump, a flat plate gripper, a hydraulic press, a data acquisition board and a computer, wherein the flat plate gripper is positioned on a platform of the hydraulic press, the flat plate gripper is a hollow container, and pistons are respectively arranged above and below a cavity of the hollow container; cores (or steel plates ) exist between the pistons, and the proppant is filled among the cores; the inner side of the cavity of the flat plate gripper is provided with a deep hole in which an electric heating rod and a temperature sensor are inserted, and two ends of the cavity are provided with small holes through which experimental fluid enters and exits, wherein a small fluid entering hole is connected with the horizontal flow pump and a fluid storage tank and a small fluid exiting hole is connected with a waste liquid tank; the hydraulic press is connected with a displacement sensor and a pressure sensor; the horizontal flow pump, the temperature sensor, the displacement sensor and the pressure sensor are all connected with the data acquisition board; and the data acquisition board is connected with the computer. The measuring device has reliable principle and simple structure and offers special equipment for evaluating the insert depth of proppant in rock during the fracture process of oil-gas fields.
Description
Technical field
The utility model relates to petroleum industry department, the device of in oilfield exploitation procedure the proppant embedment rock degree of depth of injecting the rock stratum being measured.
Background technology
Adopting proppant fracturing reform reservoir is the key project technology that product, operation, efficient exploitation are built in present oil-gas reservoir.After pressing crack construction finished, the effect lower support agent embedding formation rock reduction supporting crack width at formation closure stress had a strong impact on fracturing effect, and this phenomenon is particularly evident in soft formation.The degree of depth of assay proppant embedment rock (corresponding to the order of severity of proppant embedment rock), for adopt rational technology measure with prevent proppant embedment, to improve fracturing effect significant.
Present domestic tester and method of testing of not seeing relevant embedding depth of proppant.
What abroad adopt at present is with uniform grading beach sand agglutination simulating formation rock, tests (SPE38590) with certain particle diameter steel ball simulation proppant, and obviously there is following shortcoming in this method:
1, with steel ball simulation proppant with can not reflect the truth of fracturing propping agents and formation rock effect with glued beach sand simulated formation rock.
2, can not carry out repeated experiment at the Different Strata rock, the bad adaptability of experimental result.
3, only be used to describe ubiquitous proppant embedment phenomenon, can not obtain concrete insert depth, FRACTURING DESIGN is lacked actual directive significance.
The utility model content
The purpose of this utility model is to provide support the measurement mechanism of agent insert depth, this device can be simulated the full-scale condition on proppant embedment stratum in the fracturing fracture, satisfy measurement requirement, in order to instruct fracturing technique measure decision-making and pressure break optimal design at varying environment condition lower support agent insert depth.
Embedding depth of proppant is subjected to the combined influence of multiple factor, but want the shared weight of each influence factor of proppant embedment in the evaluating oilfield exploitation, need carry out single factor analysis to it, therefore in experimentation, used high-strength steel sheet with formation core compares experiment, the influence that brings with the compacting of elimination proppant, fragmentation etc.When calculating insert depth, be to measure according to the displacement meter at flush mounting two ends.At first test proppant fracture condudtiviy by certain fluid in steel plate, steel plate is indeformable, does not almost embed, and the embedded quantity of considering this moment is zero, obtains its each crack width W constantly
F0t, substituting steel plate with the experiment rock core then, the simulated formation environment is tested under the same conditions, obtains each crack width W constantly of a cover equally
F1tUtilize the method to eliminate the compaction between the proppant and the fragmentation of proppant, can access the insert depth h of a certain moment proppant rock
i,
h
t＝W
fot-W
f1t
In the formula, h
tBe insert depth, unit is mm; W
F0tAny time simulation supporting crack width during for the experiment of use steel plate, unit is mm; W
F1tAny time simulation supporting crack width during for the experiment of use formation core, unit is mm.
The measurement mechanism of the utility model embedding depth of proppant, mainly form by constant-flux pump, dull and stereotyped clamper, hydraulic press, data acquisition board, computer, described dull and stereotyped clamper is positioned on the hydraulic press platform, described dull and stereotyped clamper is a hollow container, its cavity respectively has a piston up and down, is rock core (or steel plate) between the piston, and proppant is housed between the rock core, gasket seal is all arranged around rock core, with piston space gasket seal is arranged also in the cavity inboard; Described dull and stereotyped clamper cavity inboard has deep hole to be used to insert electrically heated rod and temperature pick up, and its two ends are useful on the aperture of turnover Experimental Flowing Object respectively, and described feed liquor aperture is connected with constant-flux pump and fluid reservoir, and described fluid aperture is connected with waste liquid tank; Described hydraulic press is connected with displacement transducer and pressure sensor; Described constant-flux pump, temperature pick up, displacement transducer, pressure sensor is equal links to each other with data acquisition board, and data acquisition board links to each other with computer again.
Compared with prior art, the measurement mechanism of the embedding depth of proppant that the utility model provides, principle is reliable, simple in structure, the truth that both can reflect fracturing propping agents and formation rock effect can be carried out repeated experiment at the Different Strata rock again, and experimental result compliance is good.The utility model not only can be used for describing ubiquitous proppant embedment phenomenon, can also obtain concrete insert depth, and the proppant embedment rock degree of depth provides special equipment in the oil-gas field fracturing process in order to estimate.
Description of drawings
Further specify the utility model below with reference to the accompanying drawings.
Fig. 1 is the measurement mechanism structure chart of embedding depth of proppant.
Fig. 2 is dull and stereotyped clamper structure chart.
The specific embodiment
Referring to Fig. 1, Fig. 2.The measurement mechanism of embedding depth of proppant, mainly form by constant-flux pump 2, dull and stereotyped clamper 3, hydraulic press 4, data acquisition board 9, computer 11, described dull and stereotyped clamper 3 is positioned on hydraulic press 4 platforms, described dull and stereotyped clamper is a hollow container, its cavity 18 respectively has a piston 15 up and down, is rock core (or steel plate) 13 between the piston, and proppant 14 is housed between the rock core, gasket seal 12 is all arranged around rock core, with piston space gasket seal 16 is arranged also in the cavity inboard; Described dull and stereotyped clamper cavity inboard has deep hole to be used to insert electrically heated rod 8 and temperature pick up 6, and its two ends are useful on the aperture 17 of turnover Experimental Flowing Object respectively, and described feed liquor aperture is connected with constant-flux pump 2 and fluid reservoir 1, and described fluid aperture is connected with waste liquid tank 10; Described hydraulic press is connected with displacement transducer 5 and pressure sensor 7; Described constant-flux pump 2, temperature pick up 6, displacement transducer 5, pressure sensor 7 all link to each other with data acquisition board 9, and data acquisition board 9 links to each other with computer 11 again.
Lift method and the flow process that a representative instance illustrates the embedding depth of proppant test below:
Dull and stereotyped clamper is that a cavity depth is 8cm, and length is 20cm, and width is the hollow container of 4cm, with a block length 4cm, and wide 2cm, the experimental steel plate level of thick 2cm is put into dull and stereotyped clamper, and evenly 1-15kg/cm is put in the shop on steel plate
2Ceramsite propping agent, the experiment steel plate of an other same specification is also put into dull and stereotyped clamper, proppant is evenly put between two block plates the shop, caulking gum pad and piston are put into dull and stereotyped clamper cavity seal.Electrically heated rod and the temperature pick up of two 500W are inserted dull and stereotyped clamper cavity inboard; Dull and stereotyped clamper is placed on the hydraulic press platform, and its feed liquor aperture connects constant-flux pump and fluid reservoir, and the fluid aperture connects waste liquid tank, the 2L clear water of packing in the fluid reservoir; To be connected with data acquisition board, computer with pressure sensor, constant-flux pump, temperature pick up with the displacement transducer that hydraulic press links to each other; Primer fluid press, on-load pressure are to initial pressure 6.9MPa, and each sensor parameters zero clearing starts computer-controlled program, the input experiment parameter, flow 5ml/min, pressure 6.9-69MPa, every grade of 6.9MPa increases progressively, each pressure spot pressure-bearing time 10min, 90 ℃ of temperature; Start constant-flux pump, electrically heated rod, temperature pick up and displacement transducer, constant-flux pump infusion fluid reservoir liquid enters simulation formation fluid state in the dull and stereotyped clamper, electrically heated rod and hydraulic press are controlled simulant bearing conditions of coal seam sub-surface temperature and pressure respectively, demonstrate the crack on the displacement transducer and change, all data transfer to computer by data acquisition board; Rock core with same size is replaced steel plate, repeats experiment under the identical situation of other conditions, and all data transfer to computer by data acquisition board; Computer is handled and is calculated data by control program, obtains 90 ℃ of temperature clear water filtration rate 5ml/min, the embedding depth of proppant under each pressure spot.
Claims (4)
- The measurement mechanism of 1 embedding depth of proppant, mainly form by constant-flux pump (2), dull and stereotyped clamper (3), hydraulic press (4), data acquisition board (9), computer (11), it is characterized in that, described dull and stereotyped clamper (3) is positioned on hydraulic press (4) platform, described dull and stereotyped clamper is a hollow container, its cavity (18) respectively has a piston (15) up and down, is rock core or steel plate (13) between the piston, and proppant (14) is housed between the rock core; Described dull and stereotyped clamper cavity inboard has deep hole to be used to insert electrically heated rod (8) and temperature pick up (6), its two ends are useful on the aperture (17) of turnover Experimental Flowing Object respectively, described feed liquor aperture is connected with constant-flux pump (2) and fluid reservoir (1), and described fluid aperture is connected with waste liquid tank (10); Described hydraulic press is connected with displacement transducer (5) and pressure sensor (7); Described constant-flux pump (2), temperature pick up (6), displacement transducer (5), pressure sensor (7) all link to each other with data acquisition board (9), and data acquisition board (9) links to each other with computer (11) again.
- 2 measurement mechanisms as claimed in claim 1 is characterized in that, the rock core (13) in dull and stereotyped clamper (3) all has gasket seal (12) all around, with piston space gasket seal (16) are arranged also in the cavity inboard.
- 3 measurement mechanisms as claimed in claim 1 is characterized in that, cavity (18) degree of depth of dull and stereotyped clamper (3) is 8cm, and length is 20cm, and width is 4cm.
- 4 measurement mechanisms as claimed in claim 1 is characterized in that, the long 4cm of described rock core or steel plate (13), and wide 2cm, thick 2cm, evenly ceramsite propping agent is put in the shop on rock core or steel plate, and it is 1-15kg/cm that concentration is put in the shop 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079958U CN201391314Y (en) | 2009-04-01 | 2009-04-01 | Measuring device for insert depth of proppant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079958U CN201391314Y (en) | 2009-04-01 | 2009-04-01 | Measuring device for insert depth of proppant |
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| Publication Number | Publication Date |
|---|---|
| CN201391314Y true CN201391314Y (en) | 2010-01-27 |
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| CN200920079958U Expired - Fee Related CN201391314Y (en) | 2009-04-01 | 2009-04-01 | Measuring device for insert depth of proppant |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720486A (en) * | 2012-06-28 | 2012-10-10 | 中国石油大学(华东) | Device for testing shale gas fracture network diversion capacity and working method of device |
| CN105510165A (en) * | 2015-12-04 | 2016-04-20 | 中国石油集团川庆钻探工程有限公司 | Erosion evaluation device and testing method for proppant sand clusters in discontinuous sand paving crack |
| CN106338257A (en) * | 2015-07-07 | 2017-01-18 | 中国石油天然气股份有限公司 | Method for quantitatively measuring embedding depth of propping agent |
| CN106442253A (en) * | 2016-09-05 | 2017-02-22 | 中国石油天然气股份有限公司 | Method and device for evaluating artificial crack wall compaction damage caused by proppant embedding |
| CN106546658A (en) * | 2016-10-27 | 2017-03-29 | 中国石油大学(北京) | Device and its measuring method that a kind of measurement proppant is distributed in rock stratum |
| CN112067446A (en) * | 2020-08-10 | 2020-12-11 | 中国石油大学(华东) | Device and method for testing pressure blocking effect of seam height control agent |
-
2009
- 2009-04-01 CN CN200920079958U patent/CN201391314Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720486A (en) * | 2012-06-28 | 2012-10-10 | 中国石油大学(华东) | Device for testing shale gas fracture network diversion capacity and working method of device |
| CN102720486B (en) * | 2012-06-28 | 2015-07-15 | 中国石油大学(华东) | Device for testing shale gas fracture network diversion capacity and working method of device |
| CN106338257A (en) * | 2015-07-07 | 2017-01-18 | 中国石油天然气股份有限公司 | Method for quantitatively measuring embedding depth of propping agent |
| CN105510165A (en) * | 2015-12-04 | 2016-04-20 | 中国石油集团川庆钻探工程有限公司 | Erosion evaluation device and testing method for proppant sand clusters in discontinuous sand paving crack |
| CN106442253A (en) * | 2016-09-05 | 2017-02-22 | 中国石油天然气股份有限公司 | Method and device for evaluating artificial crack wall compaction damage caused by proppant embedding |
| CN106442253B (en) * | 2016-09-05 | 2020-06-09 | 中国石油天然气股份有限公司 | Method and device for evaluating artificial crack wall compaction damage caused by proppant embedding |
| CN106546658A (en) * | 2016-10-27 | 2017-03-29 | 中国石油大学(北京) | Device and its measuring method that a kind of measurement proppant is distributed in rock stratum |
| CN106546658B (en) * | 2016-10-27 | 2019-05-21 | 中国石油大学(北京) | It is a kind of to measure the device and its measurement method that proppant is distributed in rock stratum |
| CN112067446A (en) * | 2020-08-10 | 2020-12-11 | 中国石油大学(华东) | Device and method for testing pressure blocking effect of seam height control agent |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20140401 |