CN100526601C - Dynamic test device for composite perforator - Google Patents
Dynamic test device for composite perforator Download PDFInfo
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- CN100526601C CN100526601C CNB2006101051311A CN200610105131A CN100526601C CN 100526601 C CN100526601 C CN 100526601C CN B2006101051311 A CNB2006101051311 A CN B2006101051311A CN 200610105131 A CN200610105131 A CN 200610105131A CN 100526601 C CN100526601 C CN 100526601C
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Abstract
The invention relates to a dynamic measuring equipment for compound gun perforator in oil and gas well. It has a simulating target, which comprises cylinder, casing target in the cylinder cavity, cement ring and simulating target. There is a first cavum with fluid between the peripheral face of simulating target and the inner wall of cylinder. One container is set on the simulating target. Pressure measuring hole, in which first and second sensors are set, and pinhole for initiating line, which are connected with the cavum of container, is set on the wall of container. One simulating compound gun perforator cell is set in said container and there is a second cavum with fluid among the gun body of gun perforator, inner wall of said container and said casing target. Said pressure measuring hole, in which a first sensor is set, is connected with the inner of gun perforator by a protecting cover and the pressure measuring hole, in which a second sensor is set, is connected with said second cavum with fluid. The invention can measure the dynamic curve of pressure-time in the inner and annulus of compound gun perforator on the ground.
Description
Technical field
The invention belongs to the examination of oil gas well surveying technical field, specifically a kind of dynamic checkout unit of composite perforator.
Technical background
Composite perforator (composite perforation gun) has obtained the generally approval in oil field in field use for many years.Development along with compound technique of perforating, particularly the matching performance detection of the optimization of behavior of powder research, charge constitution and rifle, bullet, medicine etc. is all had higher requirement, therefore, objectively be badly in need of a kind of ground test method and device that can play directive function to composite perforator product development and Product Acceptance Review.At present, the technique of dynamic measurement of composite perforator down-hole pressure-time performance graph (hereinafter to be referred as the p-t curve) is in the oil field Preliminary Applications, its principle is: pressure sensor is inlayed be fixed on the memory stick with data acquisition and memory function, and memory stick and perforator linked, the data that obtain are stored in the memory stick, again memory stick is installed release on computers after carrying rifle, obtained the p-t curve of mineshaft annulus.The deficiency of this technology is: 1) can not measure the p-t curve in the perforating gun rifle, and the p-t curve has important directive significance to the design of perforating gun in the rifle; 2) because the instrument shock resistance is poor, so the reliability of test can not guarantee; 3) be subjected to the restriction of oil, gas well wellbore space, the physical storage volume is less, and storable space is little, and sample frequency is low, and sampled point is difficult to capture actual pressure peak very little, causes the pressure peak distortion; 4) be subjected to the influence of temperature in wellbore, test null offset can not truly reflect the practical application effect of perforator; 5) characterization processes complexity, cost are too high; 6) in one group of experiment, can't obtain the initial trial condition of same pit shaft, the result of the test comparativity is poor; 7) product generally can not obtain go into the well test permission of oil field before research and development product, trial product and typing.Therefore, present this downhole testing technology can't instruct the development and the design of perforating gun, the check before also can't going into the well to the perforating gun product of development.
Summary of the invention
Problem to be solved by this invention provides a kind of dynamic test device for composite perforator that can carry out on ground, the reliability height of this testing arrangement test, pressure-time dynamic process (being annular space p-t curve) that not only can test compound perforating gun annular space can also be tested the pressure-time dynamic process in the perforating gun rifle simultaneously.
The technical scheme that addresses the above problem is: the dynamic test device for composite perforator that is provided has:
1) simulation target body, it is made up of cylindrical shell, sleeve pipe target, cement sheath and simulation target of installing successively downwards from this cylinder lumen upper end, and first cavity of an injection liquid is arranged between simulation target periphery and this cylinder inboard wall;
2) one place the simulation target body on and inner chamber be columnar container, chamber wall is provided with the fairlead of the pressure tap of the installation first sensor that communicates with container intracavity, the pressure tap that second sensor is installed and installation detonating cord, and the through hole of placing above-mentioned sleeve pipe target is arranged at the container bottom;
3) analog composite perforating gun unit that places the said vesse inner chamber, this perforating gun unit has the body of a gun, single-shot perforating bullet and gunpowder, and second cavity of an injection liquid is arranged between the inwall of the composite perforation gun body of a gun and described container and above-mentioned sleeve pipe target;
4) pressure tap of above-mentioned installation first sensor communicates by in a protective sleeve and the perforating gun rifle; the pressure tap that second sensor is installed communicates with second cavity of above-mentioned injection liquid, and said protective sleeve is provided with the hole of a plurality of radial arrangement that communicate with pressure tap.
Above-mentioned first sensor is used to measure the interior p-t curve of rifle of perforating gun, second sensor is used to measure the annular space p-t curve of perforating gun, sleeve pipe target simulated oil casing, the cement borehole wall of cement sheath simulation oil well, the simulation target is used to simulate the rock stratum, first cavity injects the pressured state that is used to simulate the rock stratum behind the highly pressurised liquid, and second cavity injects and is used for the analogue perforation rifle behind the highly pressurised liquid and goes into the outer annular space state of its body of a gun behind the well.
Above-mentioned protective sleeve is used to protect sensor, otherwise the relic of the formed high-speed motion in perforating bullet blast back can damage sensor.
The present invention is by the test of composite perforator unit in simulating test device, obtain to reach in the composite perforator unit rifle under confined pressure and the liquid medium condition annular space dynamic pressure change procedure on the ground, have reusable, simple to operate, experimentation cost is low, test result is accurate, characteristics such as reliable, the optimal design that not only can be used for mechanism research, research and development of products, Product Acceptance Review and the product of composite gun perforation product also can be carried out ground p-t curve test to body-free perforator, conventional perforator and high enegry gas fracturing powder column.
Description of drawings
Fig. 1 is the overall structure sketch of one embodiment of the invention.
Fig. 2 is the structure chart of composite perforation gun unit among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing content of the present invention is described in detail.
As shown in Figure 1: testing arrangement is mainly by simulating target body 1, composite perforation gun unit 2 and placing high-pressure-resistant vessel 3 three parts on simulation target body top to form, data are handled and are adopted existing mature technique, by being installed in the pressure sensor picked up signal on the testing arrangement, obtain in the composite perforator rifle and the p-t performance graph of annular space through collection, signal amplification and computer.
High-pressure-resistant vessel 3 is made up of housing 4, right end cap 5 and left end cap 6.Left and right end cap is provided with through hole, and two end cap adopts with housing 3 endoporus and is threaded, and its mating face is provided with seal.The appearance of housing 4 can be cylindrical or prismatic, this example is eight prismatic, which is provided with the dog screw 10 of pressure tap 7, plug 8 and perforating gun that second sensor (annular space pressure sensor) is installed, screwing off plug 8 can be to the annular space cavity between the housing 4 and the perforating gun body of a gun (being aforesaid second cavity) 9 perfusion fluid, also can save plug 8, utilize the screw perfusion fluid of dog screw 10.
Simulation target body 1 has a cylindrical shell 12 that is seated in down on the locating piece 11, and sleeve pipe target 13, cement sheath 14 and simulation target 15 are housed in the cylindrical shell from the top down successively.For the ease of installing and changing, sleeve pipe target 13, cement sheath 14 and simulation target 15 all are contained in the sleeve 16, and sleeve 16 inserts again in the through hole of housing 4 bottoms, and 12 of sleeve 16 and cylindrical shells have a toroidal cavity (being aforesaid first cavity) 17.For guaranteeing safety, also be provided with a steel target 18 in the lower end of simulation target 15.Also be provided with on the cylindrical shell 12 of simulation target body 1 to first cavity 17 and inject the liquid-filling valve 19 of liquid mediums and above-mentioned cavity is implemented the pressure-relief valve 20 of release; For release in time fast after testing, in first cavity 17, be provided with a mozzle that is connected with pressure-relief valve 21, the port of this mozzle 21 is positioned at the position, upper end of first cavity 17, and mozzle 21 port part preferably are provided with a porous screen casing 22.Adopt high pressure sealing to connect between the housing 4 of simulation target body 1 and high-pressure-resistant vessel, the material of simulation target can be sandstone, concrete, sandstone etc., and the medium that injects annular space can be water or oil.
As shown in Figure 2: analog composite perforating gun unit 2 is equivalent to a single-shot perforating gun, its the cylindric body of a gun 31 two ends are respectively by the pressure measurement end cap 32 and end cap 33 shutoff of detonating, and the pressure measurement end cap 32 and the end cap 33 that detonates are stuck in the groove of left and right end cap of high-pressure-resistant vessel 3 again and sealing.Pressure measurement end cap 32 is provided with the pressure tap 34 that first sensor (pressure sensor in the rifle) is installed; the right-hand member of pressure tap 34 is equipped with protective sleeve 35; protective sleeve is provided with the hole 36 of a plurality of radial arrangement, the fragment impact microphone of so just having avoided perforating bullet 37 explosion times to produce.The end cap 33 that detonates is provided with the fairlead 38 that detonating cord is installed, and the detonating cord detonator interior with being seated in perforating bullet 37 projectile tail grooves is connected, again with taper stifled 39 and sealing mat 40 shutoff fairleads 38.Perforating bullet 37 is contained on the firing mount, the jam 41 of its projectile tail on the body of a gun, and the periphery of perforating bullet is equipped with gunpowder 42.The body of a gun 31 right-hand members also are provided with locating slot 43, and perforating gun is packed into behind the high-pressure-resistant vessel 3, and dog screw 10 is screwed in locating slots 43, guarantee the perforating gun correct position.
The sensor of surveying annular pressure is installed in the pressure tap 7 of housing 4 during test, the sensor of surveying the rifle internal pressure is installed in pressure tap 34, fill water for second cavity 9 by the screw of the plug wire on the housing 48, can set different pressure parameters to first cavity with second cavity respectively according to the stratum confined pressure with pit shaft preliminary examination pressure, also can set same pressure parameter these two cavitys.Setting for same pressure parameter can be injected water under high pressure to first cavity 17 by liquid-filling valve 19, when the screw of plug wire 8 overflows water (for same pressure parameter setting, need not to install additional sealing between sleeve 16 and the housing 4, water under high pressure can enter second cavity 9 through the micro gap between them), tighten plug wire 8, continue pressurization until arriving setting pressure; Can pressurize respectively to first cavity and second cavity (needing to install additional sealing between sleeve 16 and the housing 4) for different pressure parameter settings; The system for the treatment of is in ignition and detonation behind the triggering state.Perforating bullet forms strong positive shock wave of multiple tracks and the back wave along the radial and axial propagation of the body of a gun after the rifle implode, the sensor of measuring the rifle internal pressure at first receives the positive shock wave of axially propagating in the rifle in first road, and measurement ring pneumatics sensor then at first receives the positive shock wave in first road that radially is transmitted in the annulus fluid medium.The received positive shock wave of these twice of sensor will be the part that pressure peak is the highest in the whole measuring process, action time is relatively short.Because the influence of rifle inner structure, annular space confined pressure and liquid medium after the positive shock wave in first road, will produce the incidence wave and the back wave of multiple tracks mutual superposition and decay gradually, these ripples are also received by sensor.Because the detonation product that the perforating bullet blast generates expands rapidly, in rifle, formed the HTHP dynamic environment, add the percussion of shock wave and high-speed motion shell case relic, the rifle quick fragmentation of interior gunpowder quilt is also lighted, speed with Millisecond forms the high temperature and high pressure gas that continues in short-term, and the dynamic process of this high temperature and high pressure gas is received by pressure sensor in the rifle; Received by the annular space pressure sensor to the high pressure dynamic process that the annulus fluid medium applies by body of a gun relief hole and preforation tunnel, thereby the rifle of acquisition composite perforation gun is interior and the p-t curve of annular space.
The diameter of this testing arrangement middle shell 4 inner chamber test positions can be 5.5 ', 7 ' or the internal diameter of 9 ' sleeve pipe.
Claims (5)
1, a kind of dynamic test device for composite perforator is characterized in that having:
1) simulation target body (1), it is made up of cylindrical shell (12), sleeve pipe target (13), cement sheath (14) and the simulation target (15) installed successively downwards from this cylinder lumen upper end, simulates first cavity (17) that an injection liquid is arranged between target (15) periphery and this cylindrical shell (12) inwall;
2) one places simulation target body (1) to go up and inner chamber is columnar container (3), chamber wall is provided with the fairlead (38) of the pressure tap (34) of the installation first sensor that communicates with container intracavity, the pressure tap (7) that second sensor is installed and installation detonating cord, and the through hole of placing above-mentioned sleeve pipe target (13) is arranged at container (3) bottom;
3) analog composite perforating gun unit (2) that places said vesse (3) inner chamber, this perforating gun unit has the body of a gun (31), single-shot perforating bullet (37) and gunpowder (42), and second cavity (9) of an injection liquid is arranged between the inwall of the composite perforation gun body of a gun (31) and described container and above-mentioned sleeve pipe target;
4) pressure tap of above-mentioned installation first sensor (34) communicates by in a protective sleeve (35) and the perforating gun rifle; the pressure tap (7) that second sensor is installed communicates with second cavity (9) of above-mentioned injection liquid, and said protective sleeve is provided with the hole (36) of a plurality of radial arrangement that communicate with first sensor pressure tap (34).
2, dynamic checkout unit according to claim 1 is characterized in that the cylindrical shell (12) of said simulation target body (1) is provided with liquid-filling valve (19) and the pressure-relief valve (20) that injects liquid medium to first cavity (17).
3, dynamic checkout unit according to claim 2 is characterized in that being provided with a mozzle (21) that is connected with pressure-relief valve (20) in said first cavity (17), the port of this mozzle (21) is positioned at the position, upper end of first cavity (17).
4, dynamic checkout unit according to claim 3 is characterized in that said mozzle (21) port part is provided with a porous screen casing (22).
5,, it is characterized in that being provided with a steel target (18) in the lower end of simulation target (15) according to each described dynamic checkout unit in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101051311A CN100526601C (en) | 2006-12-06 | 2006-12-06 | Dynamic test device for composite perforator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101051311A CN100526601C (en) | 2006-12-06 | 2006-12-06 | Dynamic test device for composite perforator |
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| CN1970992A CN1970992A (en) | 2007-05-30 |
| CN100526601C true CN100526601C (en) | 2009-08-12 |
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| CNB2006101051311A Active CN100526601C (en) | 2006-12-06 | 2006-12-06 | Dynamic test device for composite perforator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10597979B1 (en) | 2018-09-17 | 2020-03-24 | DynaEnergetics Europe GmbH | Inspection tool for a perforating gun segment |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598014B (en) * | 2009-04-07 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Perforation simulation target device for high-temperature and high-pressure laboratory |
| CN101967968B (en) * | 2010-09-17 | 2013-05-15 | 武汉海王机电工程技术公司 | Three-cavity pressure separation device in high-temperature high-pressure container |
| CN104695925B (en) * | 2013-12-09 | 2017-05-10 | 中国石油天然气股份有限公司 | Method for setting electric pulse parameters acting on reservoir |
| CN105350946B (en) * | 2015-10-28 | 2018-04-17 | 中国石油天然气股份有限公司 | Shaft-target combined device for perforation flow test |
| CN105971580B (en) * | 2016-06-27 | 2018-04-20 | 中国海洋石油总公司 | A kind of screen casing explosion fracturing experimental provision and method |
| CN106226492B (en) * | 2016-07-05 | 2018-07-31 | 中国工程物理研究院化工材料研究所 | A kind of energetic material energy release evaluating apparatus and evaluation method |
| CN107905768A (en) * | 2017-12-01 | 2018-04-13 | 中国石油天然气股份有限公司 | Same-hole repeated perforation experiment process and device |
| CN109899040B (en) * | 2019-04-24 | 2024-08-20 | 西安瑞通能源科技有限公司 | Device and method for dynamically detecting pressure of simulated perforation tunnels of oil and gas wells |
| CN112061533B (en) * | 2020-09-09 | 2022-04-22 | 四川石油射孔器材有限责任公司 | Automatic labeling equipment for blocking explosive-conveying hole of perforating bullet shell |
| CN113482581A (en) * | 2021-08-10 | 2021-10-08 | 中海石油(中国)有限公司 | Double-layer casing perforation simulation experiment device and method |
| CN114060006B (en) * | 2021-11-26 | 2023-11-03 | 西南石油大学 | Device for testing strength and sealing performance of cement sheath after perforation and application method thereof |
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2006
- 2006-12-06 CN CNB2006101051311A patent/CN100526601C/en active Active
Non-Patent Citations (2)
| Title |
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| 复合射孔器产品质量控制方法. 张国桉.测井技术，第29卷. 2005 |
| 复合射孔器产品质量控制方法. 张国桉.测井技术，第29卷. 2005 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10597979B1 (en) | 2018-09-17 | 2020-03-24 | DynaEnergetics Europe GmbH | Inspection tool for a perforating gun segment |
| US11053778B2 (en) | 2018-09-17 | 2021-07-06 | DynaEnergetics Europe GmbH | Inspection tool for a perforating gun segment |
| US11578566B2 (en) | 2018-09-17 | 2023-02-14 | DynaEnergetics Europe GmbH | Inspection tool for a perforating gun segment |
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| Publication number | Publication date |
|---|---|
| CN1970992A (en) | 2007-05-30 |
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Address after: High tech Zone technology two road 710075 Shaanxi city of Xi'an province No. 70 Software Park Lege Tang room D301 Patentee after: Tongyuan Petroleum Science and Technology Group Co., Ltd. Address before: High tech Zone technology two road 710075 Shaanxi city of Xi'an province No. 70 Software Park Lege Tang room D301 Patentee before: Xi'an Tongyuan Petrotech Co., Ltd. |
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Address after: No.1307, 13 / F, block a, No.51 Tangyan Road, hi tech Zone, Xi'an City, Shaanxi Province, 710075 Patentee after: Tongyuan Petroleum Science and Technology Group Co.,Ltd. Address before: High tech Zone technology two road 710075 Shaanxi city of Xi'an province No. 70 Software Park Lege Tang room D301 Patentee before: Tongyuan Petroleum Science and Technology Group Co.,Ltd. |