CN217925850U - Horizontal well water exploration test pipe column - Google Patents
Horizontal well water exploration test pipe column Download PDFInfo
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- CN217925850U CN217925850U CN202222006565.3U CN202222006565U CN217925850U CN 217925850 U CN217925850 U CN 217925850U CN 202222006565 U CN202222006565 U CN 202222006565U CN 217925850 U CN217925850 U CN 217925850U
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Abstract
The utility model relates to an oil well production technical field especially relates to horizontal well water exploration test tubular column. Horizontal well water detection test string, including horizontal segment water detection string, horizontal segment water detection string includes horizontal segment oil pipe and concatenates the packing subassembly more than two on horizontal segment oil pipe, the lower extreme of horizontal segment oil pipe is connected with the end cap, the packing subassembly separates horizontal segment oil jacket annular space for different water detection test section, all be connected with temperature detection module and the screen pipe of intercommunication oil jacket annular space and oil pipe inner chamber on the horizontal segment oil pipe that each water detection test section corresponds, the quantity of screen pipe equals and the one-to-one with temperature detection module's quantity, and the screen pipe quantity that concatenates on the horizontal segment oil pipe that has at least one water detection test section to correspond is more than two. Thereby the temperature detection module carries out the multiple spot detection in the distribution that finds water test section more intensive, can detect the product liquid temperature at different positions simultaneously to can accurately judge out water position and high water position according to temperature detection data.
Description
Technical Field
The utility model relates to an oil well production technical field especially relates to horizontal well water exploration test tubular column.
Background
With the technological progress and the technical development, the drilling of horizontal wells has been developed in a large scale, and the development of the horizontal wells has become an effective means for improving the yield of single wells of oil wells. However, as the development time is prolonged, the water content rises rapidly in the development process, the oil well breaks through water, and the productivity of the oil well rapidly drops after the water breaking through, thereby seriously affecting the normal productivity of the horizontal well. In order to recover the productivity of the oil well, a water outlet position needs to be found out, so that water plugging measures can be effectively carried out.
The Chinese invention patent application document with the application publication number of CN106593422A discloses a storage type testing method and a storage type testing pipe column in a horizontal well oil pipe, wherein the testing pipe column comprises an oil well pump and a horizontal section water finding pipe column, the oil well pump is connected to the downstream of the horizontal section water finding pipe column and used for pumping liquid of the horizontal section water finding pipe column outwards, the horizontal section water finding pipe column comprises segmented oil pipes and a plurality of groups of testing tool sections connected among the segmented oil pipes, the plurality of groups of testing tool sections are sequentially connected, each group of testing tool sections comprises a flow tester, a water content tester, a pressure thermometer and a controllable isolation short circuit, the controllable isolation short circuit comprises a flow concentration packer and a sieve pipe, the flow concentration packer is used for isolating layers, and the sieve pipe is used for enabling produced liquid of a perforation section to enter the oil pipe from the sieve pipe. When the test tubular column is used, the tubular column is put into the test tubular column for testing, so that data acquisition can be completed, and then a water layer section is judged.
However, the test string still has the following problems when in use: when the water outlet condition is judged according to the test data, whether water is discharged or not and the water outlet quantity of the test tool section as a whole can be only identified, and the water outlet position and the high water outlet position cannot be found more accurately.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a horizontal well water detection test tubular column to solve the problem that current test tubular column can't realize accurate water detection.
In order to achieve the purpose, the utility model discloses horizontal well water exploration test tubular column adopts following technical scheme:
horizontal well water exploration test string, including horizontal segment water exploration string, horizontal segment water exploration string includes horizontal segment oil pipe and concatenates the packing subassembly more than two on horizontal segment oil pipe, horizontal segment oil pipe's lower extreme is connected with the end cap, the packing subassembly separates horizontal segment oil jacket annular space for different water exploration test sections, all be connected with temperature detection module and the screen pipe of intercommunication oil jacket annular space and oil pipe inner chamber on the horizontal segment oil pipe that each water exploration test section corresponds, the quantity of screen pipe equals and the one-to-one with temperature detection module's quantity, and the screen pipe quantity that concatenates on the horizontal segment oil pipe that has at least one water exploration test section to correspond is more than two.
Has the advantages that: the number of the temperature detection modules is equal to that of the sieve tubes, the sieve tubes are in one-to-one correspondence, the number of the sieve tubes connected in series on the horizontal oil pipe corresponding to at least one water finding test section is more than two, so that the temperature detection modules are distributed more densely in the water finding test section to carry out multi-point detection, and the temperature detection modules can simultaneously detect the liquid production temperature of different parts, so that the water position and the high water outlet position can be accurately judged according to temperature detection data.
Further, the temperature detection module is installed in the screen pipe.
Has the advantages that: install temperature detection module in the screen pipe, perforation section production fluid is by oil jacket annular space entering screen pipe alright direct survey get production fluid temperature, measure more directly also more accurate.
Furthermore, the upper end of the sieve tube is connected with the adjacent upper oil tube through a screw thread, a fixing device is arranged in an inner cavity of the upper end of the sieve tube, and the temperature detection module is installed on the fixing device through threads.
Has the advantages that: the temperature detection module is convenient to install and saves time.
Furthermore, a flow detection module is connected to the horizontal oil pipe corresponding to each water detection test section.
Has the beneficial effects that: the actual flow value of each water detection test section is detected by arranging a flow detection module, then the flow value of the lower water detection test section adjacent to the actual flow value is subtracted, and whether water exists in the water detection test section or not and the water yield can be judged according to the difference value. Through mutual evidence of temperature profile and flow data, a double-parameter water detection test is realized, and the judgment result of the water outlet part is more accurate and reliable.
Furthermore, the flow detection module is arranged close to the packing assembly on the upper side of the corresponding water detection test section.
Has the advantages that: the number of the sieve tubes corresponding to a single water detection test section can be one or more than two, the flow detection module needs to detect the sum of the flow of all fluids in the corresponding water detection test section, so that the flow detection module is arranged close to the packing component at the upper side of the corresponding water detection test section, and the flow detection module can be ensured to detect the total flow in the test section.
Further, the flow detection module comprises a flow testing cylinder and a flow tester arranged in the flow testing cylinder, and the flow testing cylinder is connected with the packing assembly through threads.
Has the beneficial effects that: the flow detection module is more convenient to connect.
Further, the packing assembly comprises a safety joint, a cup packer and a centralizer which are sequentially connected.
Has the advantages that: the packing cup packer is adopted, setting is not needed, interference between the packing cup and the inner wall of the sleeve and pressure difference sealing in the well are relied on, other power equipment is not needed, and operation time and operation cost can be saved.
Furthermore, the horizontal section of oil pipe comprises a plurality of sections of branch oil pipes, and two adjacent sections of branch oil pipes are connected through a sieve pipe so that the sieve pipes are uniformly distributed on the horizontal section of oil pipe.
Has the advantages that: under the condition that the water outlet position is not clear, the sieve tubes are uniformly distributed on the horizontal section oil pipe, so that the sampling is more uniform, and the detection data of the water outlet position can be accurately acquired.
Furthermore, the packing assemblies are multiple, and the lengths of more than two water detection test sections formed by the plurality of packing assemblies are different.
Has the advantages that: the horizontal section oil sleeve ring space is separated into a plurality of water finding test sections by a plurality of packing assemblies, and the descending positions of the packing assemblies are set according to the oil reservoir characteristics of corresponding wells, so that the lengths of the divided water finding test sections are consistent with the actual perforation section positions of the stratum or lithology characteristics, and the accuracy of the water finding test is improved.
Furthermore, the horizontal well water exploration test pipe column further comprises an inclined straight section pipe column, the inclined straight section pipe column is connected to the upper side of the horizontal section water exploration pipe column, and a thickening pump is connected to the inclined straight section pipe column in series.
Has the advantages that: the thick oil pump is connected to the inclined straight section pipe column to realize the dynamic test of the whole water finding process, and the temperature and the flow are changed by depending on different working states of 'pumping stop' and 'pumping start' of the thick oil pump, so that the water outlet point is analyzed.
Drawings
FIG. 1 is a schematic structural view of the horizontal well water exploration test pipe column of the present invention when being lowered into a well;
in the figure: 1. a thick oil pump; 2. a horizontal section of oil pipe; 3. a flow detection module; 4. a screen pipe; 5. a safety joint; 6. a cup packer; 7. a centralizer; 8. the horizontal section is an oil sleeve annulus; 9. and (7) a plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses horizontal well water exploration tests embodiment 1 of tubular column:
the utility model discloses a horizontal well water exploration test tubular column is particularly useful for in the viscous crude thermal recovery work progress, carries out the water exploration test to the horizontal well. As shown in figure 1, the horizontal well water exploration test pipe column comprises an inclined straight section pipe column and a horizontal section water exploration pipe column, wherein the inclined straight section pipe column is connected to the upper side of the horizontal section water exploration pipe column. The side close to the well mouth is defined as the upper side, and the side far away from the well mouth is defined as the lower side. The oblique and straight section pipe column comprises an oblique and straight section oil pipe, and a thick oil pump 1 is connected in series on the oblique and straight section oil pipe. The horizontal section water exploration pipe column comprises a horizontal section oil pipe 2, three packing assemblies are connected to the horizontal section oil pipe 2 in series to divide a horizontal section oil sleeve annulus 8 into four water exploration test sections, each packing assembly comprises a safety joint 5, a leather cup packer 6 and a centralizer 7 which are sequentially connected from top to bottom, and the lower end of the horizontal section oil pipe 2 is connected with a plug 9. The horizontal section oil pipe 2 comprises a plurality of sections of branch oil pipes which are arranged at intervals along the horizontal direction, and a sieve pipe 4 is connected between every two adjacent sections of branch oil pipes and used for communicating the inner cavity of the oil pipe with the annular space of an oil sleeve. The sieve tube 4 is a 1m sieve tube, and the sieve tubes 4 are uniformly distributed on the horizontal section oil pipe 2 at intervals. The lengths of the four water detection test sections are different, correspondingly, the number of the sieve tubes 4 connected in series on the horizontal section oil pipe 2 corresponding to the four water detection test sections is not completely equal, as shown in fig. 1, in this embodiment, the number of the sieve tubes 4 connected in series on the horizontal section oil pipe 2 corresponding to the two water detection test sections positioned at the upper side is two.
The horizontal section oil pipe 2 corresponding to each water detection test section is connected with a temperature detection module, the number of the temperature detection modules is equal to that of the sieve pipe 4, the temperature detection modules correspond to the sieve pipe 4 one by one, and the temperature detection modules are installed in the sieve pipe 4. The upper end of the sieve tube 4 is connected with the adjacent upper oil tube through a screw thread, a fixing device is arranged in the inner cavity of the upper end of the sieve tube 4, and the temperature detection module is installed on the fixing device through threads.
The temperature of the produced liquid in the perforation section flowing through the sieve tube 4 is detected by the temperature detection module, and whether the corresponding perforation section has water outlet or not and the water yield are judged according to the temperature change trend. At a certain position, if the temperature shows a descending trend in the pumping process, the water outlet condition of the corresponding layer section is shown, and the test temperature in the water detection test section positioned on the upper side is influenced by the water outlet of the layer section on the lower side to show an increasing phenomenon, so that when the water detection test section positioned on the upper side is judged to be water outlet, the temperature detected by the temperature tester at the section needs to be compared with the temperature detected by the temperature tester at the water detection test section on the lower side. For example, the initial temperature of the water detection test section on the upper side is low, the initial temperature of a certain water detection test section on the lower side is high, after the water is pumped for a period of time, the temperature of the water detection test section on the upper side is increased, the temperature of the water detection test section on the lower side is decreased, and then it can be preliminarily judged that the water detection test section on the lower side has a water outlet condition, and the water detection test section on the upper side does not have a water outlet condition.
Still be connected with flow detection module 3 on the horizontal segment oil pipe 2 that each water detection test section corresponds, flow detection module 3 is equipped with four altogether, one of them is located being close to the upper end position of horizontal segment oil pipe 2, be used for detecting the total output liquid flow of horizontal segment water detection tubular column, all the other three flow detection module 3 all close the packing subassembly setting of the upside that corresponds water detection test section, specifically, flow detection module 3 includes the flow test section of thick bamboo and installs the flow tester in the flow test section of thick bamboo, the flow test section of thick bamboo with pack the screw thread of packing subassembly and be connected.
The actual flow value of each water detection test section is detected by arranging the flow detection module 3, then the flow value of the lower water detection test section adjacent to the actual flow value is subtracted, whether water exists in the water detection test section can be judged according to the difference value, if the difference value is zero, the water detection test section does not exist water, if the difference value is not zero, the water detection test section exists water, and the water yield of the water detection test section can be judged according to the difference value. The flow detection data may be used to verify the judgment result of the temperature profile data.
The utility model discloses horizontal well water exploration test tubular column causes the horizontal segment temperature difference through the pumping flowing back, forms the temperature profile curve, through a plurality of temperature detection module of intensive arrangement in water exploration test section, makes the quantity of temperature detection module equal and the one-to-one with the quantity of screen pipe 4, carries out the multiple spot and detects to judge out the water position according to the temperature detection data accuracy, judge high water position according to the size of temperature detection value. Meanwhile, flow, temperature profile and flow data of each section are measured and verified mutually, and a double-parameter water exploration test is realized, so that the water outlet position and the high water outlet position are more accurately judged.
The utility model discloses horizontal well water exploration test string goes into through a string, realizes full horizontal well section temperature and segmentation flow test, solves the difficult problem that viscous crude horizontal well high water content well water exploration, and full horizontal well section equipartition a plurality of temperature detection module through temperature dynamic test, detectable goes out the play water point of 1m within a smaller range even, and flow detection module passes through the flow of cup packer mass flow test out every section flow, and flow data verifies temperature data, and accurate judgement goes out the water position.
The utility model discloses the temperature of horizontal well water exploration test tubular column cuts open 0.2 ℃ of precision, and flow precision 1m 3 And d, accurate water finding can be realized, the construction process is simple, the cost is low, the water finding period is short, and the method is suitable for horizontal wells with water content over 90 percent.
Example 2: in above-mentioned embodiment 1, each temperature detection module all corresponds and installs in screen pipe 4, and the benefit that sets up like this is that the perforation section produces liquid by the annular space of oil jacket entering screen pipe 4 in alright direct measurement get the fluid temperature, measure more directly also more accurate, and in embodiment 2, be equipped with fixing device in the upside oil pipe that links to each other with screen pipe 4, the temperature detection module passes through the screw thread and installs on fixing device.
Example 3: in the above embodiment 1, the upper end of the sieve tube 4 is connected to the adjacent upper oil pipe through the screw thread, the fixing device is arranged in the inner cavity of the upper end of the sieve tube 4, and the temperature detection module is installed on the fixing device through the screw thread, while in the embodiment 3, the temperature detection module is provided with the connection hole for the screw to pass through, and the temperature detection module is fastened on the inner wall of the sieve tube 4 through the screw.
Example 4: in the above embodiment 1, the flow detection module 3 is further connected to the horizontal section oil pipe 2 corresponding to each water exploration test section, and the judgment result of the temperature profile data can be further verified through the flow data, whereas in the embodiment 4, the flow detection module 3 is not provided any more, and the water condition is judged only through the temperature change.
Example 5: in the above embodiment 1, the flow detecting module 3 is disposed adjacent to the packing component on the upper side of the corresponding water detection testing section, so as to ensure that the flow detecting module 3 detects the total flow in the water detection testing section, and in the embodiment 5, the flow detecting module 3 is located at the outlet end of the uppermost sieve tube 4 of the corresponding water detection testing section and is not adjacent to the packing component on the upper side of the corresponding water detection testing section.
Example 6: in the above embodiment 1, the flow detecting module 3 includes a flow testing cylinder and a flow tester installed in the flow testing cylinder, the flow testing cylinder is screwed with the packing component, in the embodiment 6, the flow detecting module 3 adopts a flow meter, the flow meter is provided with a connecting lug, the connecting lug is provided with a connecting hole, and the flow meter is directly fastened on the packing component through a screw.
Example 7: in the above embodiment 1, the packing assembly includes the safety joint 5, the cup packer 6 and the centralizer 7 which are connected in sequence, the cup packer 6 is used as a packing component for sealing the oil casing annulus, and no other power equipment is required to be added, while in the embodiment 7, the packing assembly is a self-sealing packer, and of course, in other embodiments, other types of packers can also be used.
In the above embodiment 1, the sieve pipes 4 are uniformly distributed on the horizontal section of the oil pipe 2, while in other embodiments, the sieve pipes 4 are arranged at intervals but are not required to be uniformly distributed, and the length and the interval of the sieve pipes 4 can be reasonably adjusted according to actual conditions.
In the embodiment 1, three packing assemblies are arranged to separate the horizontal oil casing annulus 8 into four water finding test sections, the four water finding test sections are different in length, each small section realizes flow concentration by virtue of the packing assemblies, accuracy of flow test of each section is further guaranteed, the descending positions of the packing assemblies are divided according to the oil deposit characteristics of corresponding wells and are generally placed at the non-perforation positions or the mudstone interlayer positions of the horizontal sections, in other embodiments, the descending positions and the quantity of the packing assemblies can be adjusted according to the oil deposit characteristics of actual wells, and accordingly the length of the water finding test sections can be changed.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Horizontal well water exploration test string, including horizontal segment water exploration string, horizontal segment water exploration string includes horizontal segment oil pipe (2) and concatenates two above packing subassemblies on horizontal segment oil pipe (2), and the lower extreme of horizontal segment oil pipe (2) is connected with end cap (9), and packing subassembly separates horizontal segment oil jacket annulus (8) for different water exploration test sections, its characterized in that: the horizontal section oil pipe (2) corresponding to each water detection test section is connected with a temperature detection module and sieve pipes (4) for communicating the oil sleeve annulus and the inner cavity of the oil pipe, the number of the sieve pipes (4) is equal to that of the temperature detection modules and corresponds to that of the temperature detection modules one by one, and the number of the sieve pipes (4) connected in series on the horizontal section oil pipe (2) corresponding to at least one water detection test section is more than two.
2. The horizontal well water exploration test string of claim 1, wherein: the temperature detection module is installed in the sieve tube (4).
3. The horizontal well water exploration test string of claim 2, wherein: the upper end of the sieve tube (4) is connected with the adjacent upper oil tube through a screw thread, a fixing device is arranged in an inner cavity of the upper end of the sieve tube (4), and the temperature detection module is installed on the fixing device through threads.
4. The horizontal well water exploration test string of claim 1, wherein: the horizontal section oil pipe (2) corresponding to each water detection test section is also connected with a flow detection module (3).
5. The horizontal well water exploration test string of claim 4, wherein: the flow detection module (3) is arranged close to the packing assembly on the upper side of the corresponding water detection test section.
6. The horizontal well water exploration test string of claim 5, wherein: the flow detection module (3) comprises a flow testing cylinder and a flow tester arranged in the flow testing cylinder, and the flow testing cylinder is connected with the packing assembly through threads.
7. The horizontal well water exploration test string according to any one of claims 1 to 6, wherein: the packer component comprises a safety joint (5), a cup packer (6) and a centralizer (7) which are sequentially connected.
8. The horizontal well water exploration test string according to any one of claims 1 to 6, wherein: the horizontal section oil pipe (2) comprises a plurality of sections of branch oil pipes, and two adjacent sections of branch oil pipes are connected through the sieve pipes (4) so that the sieve pipes (4) are uniformly distributed on the horizontal section oil pipe (2).
9. The horizontal well water exploration test string according to any one of claims 1 to 6, wherein: the packing assemblies are multiple, and the lengths of more than two water detection test sections formed by the packing assemblies are different.
10. The horizontal well water exploration test string as recited in any one of claims 1-6, wherein: the horizontal well water exploration test tubular column further comprises an inclined straight section tubular column, the inclined straight section tubular column is connected to the upper side of the horizontal section water exploration tubular column, and a thickening pump (1) is connected to the inclined straight section tubular column in series.
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| CN202222006565.3U CN217925850U (en) | 2022-08-01 | 2022-08-01 | Horizontal well water exploration test pipe column |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115263281A (en) * | 2022-08-01 | 2022-11-01 | 中国石油化工股份有限公司 | Horizontal well water exploration test pipe column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115263281A (en) * | 2022-08-01 | 2022-11-01 | 中国石油化工股份有限公司 | Horizontal well water exploration test pipe column |
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