CN202767966U - Staged fracturing experiment simulating shaft - Google Patents
Staged fracturing experiment simulating shaft Download PDFInfo
- Publication number
- CN202767966U CN202767966U CN 201220464448 CN201220464448U CN202767966U CN 202767966 U CN202767966 U CN 202767966U CN 201220464448 CN201220464448 CN 201220464448 CN 201220464448 U CN201220464448 U CN 201220464448U CN 202767966 U CN202767966 U CN 202767966U
- Authority
- CN
- China
- Prior art keywords
- liquid outlet
- control valve
- outlet channel
- pit shaft
- distribution pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a staged fracturing experiment simulating shaft which comprises a pipeline body which is of a cylinder body, and a control valve, wherein a distributary chamber is arranged in the middle of the cylinder body, a fluid injection connector is connected on the upper portion of the cylinder body corresponding to the position of the distributary chamber, a plurality of distributary pipelines are arranged inside the cylinder body from the distributary chamber to two ends of the cylinder body in an extending mode, and each distributary pipeline is communicated with a kerf. The control valve penetrates through the fluid injection connector and is rotatably connected inside the distributary chamber, the control valve is provided with a fluid inlet pipeline in a vertical position, a plurality of fluid outlet pipelines are arranged at the lower end of the control valve in the transverse direction, the fluid outlet pipelines are communicated with the fluid inlet pipeline in a vertical mode, intersection angles are arranged among the axes of the plurality of fluid outlet pipelines, each fluid outlet pipeline is communicated with or separated from the corresponding distributary pipeline through the rotating of the control valve. On the premise that an existing fracturing device is not changed, the staged fracturing of a shaft is achieved through the design of the shaft and easy operations.
Description
Technical field
The utility model relates to a kind of staged fracturing experimental simulation pit shaft, especially a kind of staged fracturing experimental simulation pit shaft that can shunt easily hydraulic medium, control hydraulic pressure discharge-channel, it is specially adapted to the transmission of high pressure, small displacement and toxic hydraulic medium.
Background technology
Fracturing is one of increasing yield and injection mode of multiple oil reservoir, in order to understand hydraulically created fracture form in the deep formation, often by indoor fracturing simulated experiment, obtains comparatively intuitively fracture pattern.In order to obtain good analog result, the design of pit shaft is crucial.
At present, relevant simulation wellbore hole is simple in structure, only use a hollow straight tube or angular tube, process a joint that is connected with fracturing unit, add perforation or the slot passage of requirement of experiment, the simulation wellbore hole that obtains like this only has a separate chamber, therefore can only carry out the simultaneously fluid injection of single hole fluid injection or porous, forms simulation fracture single.
And in some research contents, for analyzing the impact between many hydraulic fractures, or original hydraulic fracture requires to carry out repeatedly segmentation fluid injection in simulation pressure break experimentation on the impact of new generation crack.In view of present pressure break experimental simulation pit shaft can't be realized porous segmentation fluid injection, the design people develops staged fracturing experimental simulation pit shaft of the present utility model, to satisfy the operation needs according to the Production design experience of being engaged in for many years this area and association area.
The utility model content
The purpose of this utility model is to provide a kind of staged fracturing experimental simulation pit shaft, under the prerequisite of existing fracturing unit not being changed, by the segmented pressure break of pit shaft design and shirtsleeve operation realization pit shaft.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
A kind of staged fracturing experimental simulation pit shaft, described pit shaft comprises: the pipeline body, it is cylinder, cylindrical middle part is provided with the shunting chamber, the position in corresponding shunting chamber, cylindrical top is connected with the fluid injection joint, be extended with a plurality of distribution pipelines to two ends from the shunting chamber in the cylinder, each distribution pipeline is communicated with respectively slot; Control valve, it passes the fluid injection joint and is rotatably connected in the shunting chamber, control valve is provided with feed pathway at vertical position, the lower end of control valve is provided with a plurality of liquid outlet channels in the horizontal, liquid outlet channel and feed pathway vertical connection, the axis of a plurality of liquid outlet channels has angle each other, and by the rotation of control valve, each liquid outlet channel is communicated with corresponding distribution pipeline respectively or leaves setting.
Aforesaid staged fracturing experimental simulation pit shaft, described control valve has two liquid outlet channels, be respectively the first liquid outlet channel and the second liquid outlet channel, the axis of first and second liquid outlet channel is mutually vertical, and the setting position of the first liquid outlet channel is higher than the second liquid outlet channel; Described pipeline body has four distribution pipelines, be respectively first, second, third and fourth distribution pipeline, first, second, third and fourth distribution pipeline is positioned at a plane, first and second distribution pipeline lays respectively at the both sides in described shunting chamber, and first and second distribution pipeline and the first liquid outlet channel are positioned at the same level height, third and fourth distribution pipeline lays respectively at the both sides in described shunting chamber, and third and fourth distribution pipeline and the second liquid outlet channel are positioned at the same level height.
Aforesaid staged fracturing experimental simulation pit shaft, described liquid outlet channel is positioned at different position height, and the upper and lower at liquid outlet channel on the described control valve is respectively equipped with seal.
Aforesaid staged fracturing experimental simulation pit shaft, the upper end of described control valve is provided with the graduation mark of the turned position that can show control valve.
Aforesaid staged fracturing experimental simulation pit shaft, described control valve is cylinder, described shunting chamber also is cylinder.
Aforesaid staged fracturing experimental simulation pit shaft, described control valve are spherical, and described shunting chamber also is spherical.
Characteristics and the advantage of staged fracturing experimental simulation pit shaft of the present utility model are: it has overcome the shortcoming that existing simulation wellbore hole can't be realized repeatedly staged fracturing, and the upper whole shaft structure of design is relatively simple, simple operation, simultaneously under the prerequisite that original fracturing unit need not to transform, just can be applied, satisfy the requirement of production practices.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the cross-sectional schematic of the staged fracturing experimental simulation pit shaft of the utility model embodiment;
Fig. 2 is that the master of control valve of the staged fracturing experimental simulation pit shaft of the utility model embodiment looks schematic diagram;
Fig. 2 A is the A-A line generalized section along Fig. 2;
Fig. 2 B is the schematic top plan view of control valve of the staged fracturing experimental simulation pit shaft of the utility model embodiment;
Fig. 3 A is that the master who does not insert control valve of the staged fracturing experimental simulation pit shaft of the utility model embodiment looks and partly cuts open schematic diagram;
Fig. 3 B is the schematic top plan view of not inserting control valve of the staged fracturing experimental simulation pit shaft of the utility model embodiment;
Fig. 3 C is the schematic side view of not inserting control valve of the staged fracturing experimental simulation pit shaft of the utility model embodiment;
Fig. 4 is the staged fracturing experimental simulation pit shaft design sketch of the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figures 1 to 4, the utility model embodiment has proposed a kind of staged fracturing experimental simulation pit shaft, and it comprises pipeline body 1 and control valve 2.Described pipeline body 1 is cylinder, cylindrical middle part is provided with shunting chamber 1a, the position in corresponding shunting chamber, cylindrical top is connected with fluid injection joint 3, and fluid injection joint 3 matches with the fracturing analogue experiment installation, thereby just can use such simulation wellbore hole under the prerequisite that does not change fracturing device.Be extended with a plurality of distribution pipelines to two ends from shunting chamber 1a in the cylinder, each distribution pipeline is communicated with respectively slot 4, and the size of slot 4 and arrangement can be determined by the experimental study content.Described control valve 2 passes fluid injection joint 3 and is rotatably connected among the shunting chamber 1a, control valve 2 is provided with feed pathway 2a at vertical position, the lower end of control valve 2 is provided with a plurality of liquid outlet channel 2b in the horizontal, liquid outlet channel 2b and feed pathway 2a vertical connection, the axis of a plurality of liquid outlet channel 2b has angle each other, by the rotation of control valve 2, each liquid outlet channel 2b is communicated with corresponding distribution pipeline respectively or leaves setting.
In the present embodiment, liquid flows into from the feed pathway 2a of control valve 2, and flow to respectively each liquid outlet channel 2b, liquid outlet channel 2b follows the rotation of control valve 2 and rotates, so that each liquid outlet channel 2b can be respectively be communicated with corresponding distribution pipeline or leave setting, and each distribution pipeline is communicated with respectively slot 4, as one of them liquid outlet channel 2b during with corresponding distribution pipeline connection, liquid then flows to corresponding slot via the liquid outlet channel 2b that is communicated with distribution pipeline, discharges from slot 4.Be the state of leaving for other liquid outlet channel and distribution pipeline, namely do not have the state of connection, liquid then can't be discharged from these distribution pipelines and corresponding slot.Therefore, the present embodiment can be realized the purpose of selective divided-flow by rotary control valve 2.
In the present embodiment, the shunting chamber 1a close fit of control valve 2 and pipeline body 1 reaches the purpose that selectivity order is shunted by rotary control valve 2.The present embodiment is applicable to the fracturing simulated experiment, can to the Oil Field segmentation repeatedly pressure break carry out simulated experiment, obtain the fracture pattern under the experiment condition, the guide field construction.In addition, the present embodiment simple operation, simple structure and can satisfy the requirement of different fracture patterns in the fracturing simulated experiment process.
Shown in Fig. 2 A and Fig. 2 B, the upper end of described control valve 2 is provided with the graduation mark 5 of the turned position that can show control valve.Furthermore, the top of control valve 2 is provided with a polygon groove 5a, and groove 5a shape can be used in conjunction with interior spanner, with the convenient control valve 2 that rotates.
According to an embodiment of the present utility model, described control valve 2 has two liquid outlet channel 2b, be respectively the first liquid outlet channel 2b1 and the second liquid outlet channel 2b2, the axis of first and second liquid outlet channel 2b1,2b2 is mutually vertical, and the setting position of the first liquid outlet channel 2b1 is higher than the second liquid outlet channel 2b2; Described pipeline body 1 has four distribution pipelines, be respectively first, two, three, four distribution pipeline 1b1,1b2,1b3,1b4, first, two, three, four distribution pipeline 1b1,1b2,1b3,1b4 is positioned at a plane, first, two distribution pipeline 1b1,1b2 lays respectively at the both sides of described shunting chamber 1a, and first, two distribution pipeline 1b1,1b2 and the first liquid outlet channel 2b1 are positioned at the same level height, the 3rd, four distribution pipeline 1b3,1b4 lays respectively at the both sides of described shunting chamber 1a, and the 3rd, four distribution pipeline 1b3,1b4 and the second liquid outlet channel 2b2 are positioned at the same level height.Therefore, the present embodiment has four slots 4.
In the present embodiment, the height of the first liquid outlet channel 2b1 is identical with first and second distribution pipeline 1b1,1b2, the height of the second liquid outlet channel 2b2 is identical with third and fourth distribution pipeline 1b3,1b4, and first and second liquid outlet channel 2b1,2b2 upwards are being 90 degree angles week, therefore, rotation along with control valve 2, the first liquid outlet channel 2b1 respectively with first and second distribution pipeline 1b1,1b2 is communicated with or leave, the second liquid outlet channel respectively with third and fourth distribution pipeline 1b3,1b4 is communicated with or leave, two liquid outlet channels can not be communicated with distribution pipeline simultaneously.Specifically, herein, when control valve 2 forwards certain angle (for example making graduation mark 5 perpendicular to the axis direction of pit shaft) to the first liquid outlet channel 2b1 only is communicated with the first distribution pipeline 1b1, and the second liquid outlet channel 2b2 is in the middle part, is not communicated with any distribution pipeline; When clockwise rotate control valve 2 with 90 degree after, graduation mark 5 will be parallel to the axis direction of pit shaft, this moment, the second liquid outlet channel 2b2 only was communicated with the 3rd distribution pipeline 1b3, and in the middle part of the first liquid outlet channel 2b1 is in, was not communicated with any distribution pipeline; Move in circles, by rotary control valve 2, just can sequentially link up each distribution pipeline, liquid can reach the discharge of slot 4 places by the distribution pipeline of linking up and enter the simulation rock stratum, so can effectively simulate the fracturing site operation, finishes experimentation.
As depicted in figs. 1 and 2, described control valve 2 can be cylinder, and described shunting chamber 1a then also is cylinder.In addition, described control valve 2 also can be sphere, and described shunting chamber 1a then also is spherical.As long as the profile setting of control valve 2 can be rotated control valve 2 in shunting chamber 1a.
Described liquid outlet channel 2b is positioned at different position height, is respectively equipped with seal 6 at the liquid outlet channel upper and lower on the described control valve 2.Shown in Fig. 2 and Fig. 2 A, control valve 2 has two liquid outlet channel 2b1,2b2, above the first liquid outlet channel 2b1, between first and second liquid outlet channel 2b1, the 2b2 and the below of the second liquid outlet channel 2b2 is respectively equipped with seal 6, so can only could flow into corresponding slot 4 with further assurance by liquid outlet channel and the distribution pipeline that is communicated with from the liquid that feed pathway 2a flows into.In addition, on the top of fluid injection joint 3 and below polygon groove 5a, also seal 6 can be set.
Certainly, seal 6 also can be substituted by direct contact sealing, just so the test specimen surface flatness is had relatively high expectations with cooperating.
The above only is several embodiment of the present utility model, and those skilled in the art can carry out various changes or modification to the utility model embodiment and do not break away from spirit and scope of the present utility model according to application documents are disclosed.
Claims (6)
1. a staged fracturing experimental simulation pit shaft is characterized in that, described pit shaft comprises:
The pipeline body, it is cylinder, and cylindrical middle part is provided with the shunting chamber, and the position in corresponding shunting chamber, cylindrical top is connected with the fluid injection joint, is extended with a plurality of distribution pipelines to two ends from the shunting chamber in the cylinder, and each distribution pipeline is communicated with respectively slot;
Control valve, it passes the fluid injection joint and is rotatably connected in the shunting chamber, control valve is provided with feed pathway at vertical position, the lower end of control valve is provided with a plurality of liquid outlet channels in the horizontal, liquid outlet channel and feed pathway vertical connection, the axis of a plurality of liquid outlet channels has angle each other, and by the rotation of control valve, each liquid outlet channel is communicated with corresponding distribution pipeline respectively or leaves setting.
2. staged fracturing experimental simulation pit shaft according to claim 1, it is characterized in that, described control valve has two liquid outlet channels, be respectively the first liquid outlet channel and the second liquid outlet channel, the axis of first and second liquid outlet channel is mutually vertical, and the setting position of the first liquid outlet channel is higher than the second liquid outlet channel;
Described pipeline body has four distribution pipelines, be respectively first, second, third and fourth distribution pipeline, first, second, third and fourth distribution pipeline is positioned at a plane, first and second distribution pipeline lays respectively at the both sides in described shunting chamber, and first and second distribution pipeline and the first liquid outlet channel are positioned at the same level height, third and fourth distribution pipeline lays respectively at the both sides in described shunting chamber, and third and fourth distribution pipeline and the second liquid outlet channel are positioned at the same level height.
3. staged fracturing experimental simulation pit shaft according to claim 1 is characterized in that, described liquid outlet channel is positioned at different position height, and the upper and lower at liquid outlet channel on the described control valve is respectively equipped with seal.
4. staged fracturing experimental simulation pit shaft according to claim 1 is characterized in that, the upper end of described control valve is provided with the graduation mark of the turned position that can show control valve.
5. staged fracturing experimental simulation pit shaft according to claim 1 is characterized in that, described control valve is cylinder, and described shunting chamber also is cylinder.
6. staged fracturing experimental simulation pit shaft according to claim 1 is characterized in that, described control valve is spherical, and described shunting chamber also is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464448 CN202767966U (en) | 2012-09-12 | 2012-09-12 | Staged fracturing experiment simulating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464448 CN202767966U (en) | 2012-09-12 | 2012-09-12 | Staged fracturing experiment simulating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202767966U true CN202767966U (en) | 2013-03-06 |
Family
ID=47774549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220464448 Expired - Fee Related CN202767966U (en) | 2012-09-12 | 2012-09-12 | Staged fracturing experiment simulating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202767966U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563993A (en) * | 2013-10-11 | 2015-04-29 | 中国石油大学(北京) | Staged fracturing or synchronous fracturing simulation experiment method for shale horizontal well |
| CN104989355A (en) * | 2014-05-30 | 2015-10-21 | 中国石油大学(北京) | Large-dimension staged fracturing experiment simulation wellbore |
| CN105986796A (en) * | 2015-02-10 | 2016-10-05 | 中国石油大学(北京) | Experimental method of fracture interaction of adjacent parallel hydraulic fractures in hydraulic fracturing process |
| CN105986805A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Full-dimension horizontal well separate layer fracturing simulation test well shaft with bypass pipe |
| CN107461181A (en) * | 2017-08-15 | 2017-12-12 | 中国石油大学(北京) | The physical simulation experiment device and its method of horizontal well multi-stage water power concurrent fracturing |
| CN107620585A (en) * | 2017-08-15 | 2018-01-23 | 中国石油大学(北京) | The physical simulation experiment device and its method of horizontal well spiral perforation successively pressure break |
| CN109826608A (en) * | 2019-04-08 | 2019-05-31 | 中国科学院地质与地球物理研究所 | A kind of segmented fracturing device |
| CN110331970A (en) * | 2019-07-02 | 2019-10-15 | 中国石油天然气股份有限公司 | A kind of multistage fracture simulation experimental provision |
| CN111119827A (en) * | 2019-10-24 | 2020-05-08 | 中国石油化工股份有限公司 | Shale artificial sample preparation system capable of accurately adjusting perforation direction and use method |
-
2012
- 2012-09-12 CN CN 201220464448 patent/CN202767966U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563993A (en) * | 2013-10-11 | 2015-04-29 | 中国石油大学(北京) | Staged fracturing or synchronous fracturing simulation experiment method for shale horizontal well |
| CN104989355A (en) * | 2014-05-30 | 2015-10-21 | 中国石油大学(北京) | Large-dimension staged fracturing experiment simulation wellbore |
| CN104989355B (en) * | 2014-05-30 | 2019-08-13 | 中国石油大学(北京) | Large scale staged fracturing tests simulation wellbore hole |
| CN105986796A (en) * | 2015-02-10 | 2016-10-05 | 中国石油大学(北京) | Experimental method of fracture interaction of adjacent parallel hydraulic fractures in hydraulic fracturing process |
| CN105986805A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Full-dimension horizontal well separate layer fracturing simulation test well shaft with bypass pipe |
| CN107461181A (en) * | 2017-08-15 | 2017-12-12 | 中国石油大学(北京) | The physical simulation experiment device and its method of horizontal well multi-stage water power concurrent fracturing |
| CN107620585A (en) * | 2017-08-15 | 2018-01-23 | 中国石油大学(北京) | The physical simulation experiment device and its method of horizontal well spiral perforation successively pressure break |
| CN109826608A (en) * | 2019-04-08 | 2019-05-31 | 中国科学院地质与地球物理研究所 | A kind of segmented fracturing device |
| CN110331970A (en) * | 2019-07-02 | 2019-10-15 | 中国石油天然气股份有限公司 | A kind of multistage fracture simulation experimental provision |
| CN110331970B (en) * | 2019-07-02 | 2021-07-02 | 中国石油天然气股份有限公司 | Multistage fracturing simulation experiment device |
| CN111119827A (en) * | 2019-10-24 | 2020-05-08 | 中国石油化工股份有限公司 | Shale artificial sample preparation system capable of accurately adjusting perforation direction and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202767966U (en) | Staged fracturing experiment simulating shaft | |
| CN102116168B (en) | Gas drainage system and method for hyposmosis soft coal seams | |
| GB2457625A (en) | Borehole tester apparatus and methods using dual flow lines | |
| CN104989355B (en) | Large scale staged fracturing tests simulation wellbore hole | |
| CN204253024U (en) | A kind of three-dimensional visualization physics displacement model detachably recycled | |
| CN202578589U (en) | Multifunctional string capable of washing well, logging and layering profile control flooding | |
| CN1995691A (en) | Low-pressure drilling technology using double-wall drill pipe | |
| CN203570309U (en) | Leaking stopping and pressure-bearing capability evaluation device of fractured leaky stratum | |
| BR112015014252A2 (en) | system and method for controlling the direction of a drilling unit within a drillhole | |
| CN104912534A (en) | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well | |
| CN102536191A (en) | Automatic throttle control device for pressure-controlled well drilling | |
| CN102720479A (en) | Physical simulation device for gas-cap reservoir | |
| CN107956463A (en) | A kind of ultra-low permeability reservoir straight well omnibearing stereo fracturing process | |
| WO2012160377A3 (en) | Improved flow control system | |
| CN107023259B (en) | A kind of well system based on double-wall drill pipe | |
| CN104594880A (en) | Artificial sand-packed model tube for oil field experiments | |
| CN207212319U (en) | A kind of water-jet multistage fracturing Crack Control instrument | |
| CN103630654B (en) | Split type layer of sand high-pressure slip-casting analogue experiment installation | |
| CN104989359A (en) | Non-homogeneity layering injection oriented fracturing experimental device | |
| CN219176314U (en) | Stratum inclination adjustable gas drive analogue means for oil gas field development indoor experiment | |
| CN205025447U (en) | Bottom water drive experimental apparatus | |
| CN104196512B (en) | Oil well horizontal well oil jacket is the same as the double envelope single deck tape-recorder volume fracturing tubing strings of note formula and fracturing process | |
| CN204899917U (en) | Take sand fracturing fluid analog study device of migrating in perforation tunnel | |
| CN104612632B (en) | Gas production simulation system | |
| CN104612646A (en) | Checkerboard pattern visual hydraulic fracture simulating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20130912 |