CN203626829U - Tester for dynamic drilling fluid blockage of coal bed shaft wall - Google Patents
Tester for dynamic drilling fluid blockage of coal bed shaft wall Download PDFInfo
- Publication number
- CN203626829U CN203626829U CN201320581132.9U CN201320581132U CN203626829U CN 203626829 U CN203626829 U CN 203626829U CN 201320581132 U CN201320581132 U CN 201320581132U CN 203626829 U CN203626829 U CN 203626829U
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- coal seam
- pit shaft
- tester
- borehole wall
- 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
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a tester for dynamic drilling fluid block of a coal bed shaft wall. The tester comprises a coal bed shaft wall (4), a coal bed shaft (5), a first filtrate condensation receiver (1), a drilling fluid container (11), a flow controller (18) and a mud pump (19), wherein the coal bed shaft wall (4) is disposed in the coal bed shaft (5), the first filtrate condensation receiver (1) is connected with the coal bed shaft (5) via a pipeline passage, the coal bed shaft (5) is connected with the drilling fluid container (11) via a pipeline passage to form a circulating passage, and the mud pump (19) and the flow controller (18) are arranged on a passage from the drilling fluid container (11) to the bottom of the coal bed shaft (5) and used for establishing circulation of the drilling fluid and controlling flow of the circulating drilling fluid. The tester for dynamic drilling fluid blockage of the coal bed shaft wall is simple and convenient to operate and use and capable of simulating blocking ability of drilling fluid to the coal bed shaft wall, and shaft wall stabilizing and damaging conditions of the shaft wall from effects of the drilling fluid can be observed directly.
Description
Technical field
The utility model relates to tester field, particularly, relates to the dynamic coal seam of a kind of drilling fluid borehole wall shutoff tester.
Background technology
There is many, thin, loose, wide, equal distribution characteristics in coal seam, East China Sea, coal seam and sandstone, mud shale are extensively present in Dragon Well tea group, flower port group and Pinghu group with the uniform thickness form of depositing mutually not, in drilling process, there is cave-in phenomenon, while causing trip-out, back reaming is serious, the card phenomenon that is hampered when casing job happens occasionally, electrical measurement operation often because of coal seam collapse sand setting too much under not on earth.Therefore appraisal drilling liquid is very important to the shut-off capacity in coal seam.
Drilling fluid shutoff evaluation appts has API filter tester, HTHP high pressure high temperature filter tester, casting bed simulation of infiltration test instrument, the dynamic rock core filtration device of HTHP etc. at present, and simulation shutoff medium comprises filter paper, rock core, casting bed.These evaluation appts are mainly used in the shut-off capacity of appraisal drilling liquid to sandstone formation, are difficult to simulate the shutoff to coal seam and wellbore stability ability under drilling fluid current intelligence.Therefore, in the urgent need to a kind of shut-off capacity of drilling fluid to coal seam and evaluation appts of appraisal drilling liquid filtration characteristics in coal seam of simulating.
Utility model content
The purpose of this utility model is to provide the dynamic coal seam of a kind of drilling fluid borehole wall shutoff tester, this tester is simulated the coal seam borehole wall by compacting and is put as in pit shaft, then use tested drilling fluid in the borehole wall, to circulate under the certain high temperature of simulation and flow conditions, this artificial pit shaft sidewall has been opened two windows, can measure the situation of change of oozing filtrate volume caught on a filter and observing the sidewall borehole wall.
To achieve these goals, the utility model provides the dynamic coal seam of a kind of drilling fluid borehole wall shutoff tester, comprising: the coal seam borehole wall, coal seam pit shaft, the first filtrate condensation receiver, drilling fluid container, flow control valve and slush pump; The described coal seam borehole wall is positioned at coal seam pit shaft; Described coal seam upper wellbore and bottom are respectively equipped with the outlet of pit shaft circulation of drilling fluid and pit shaft circulation of drilling fluid entrance, described drilling fluid container upper and lower is respectively equipped with drilling fluid container loop head and drilling fluid container loop exit, described pit shaft circulation of drilling fluid outlet is connected with described drilling fluid container loop head by pipeline passway, and described drilling fluid container loop exit is connected with described pit shaft circulation of drilling fluid entrance by pipeline passway; Described the first filtrate condensation receiver is connected with described coal seam pit shaft by pipeline passway; Described slush pump and described flow control valve are on the pipeline passway between described drilling fluid container loop exit and described pit shaft circulation of drilling fluid entrance, for setting up the circulation of drilling fluid and the flow of control circulation of drilling fluid.
Preferably, described coal seam borehole wall filling coal seam landwaste or coal dust, quartz sand.
Preferably, described coal seam pit shaft is provided with pit shaft upper cover.
Preferably, the described coal seam borehole wall and described coal seam upper wellbore have certain space, for the drilling fluid of buffer cycles.
Preferably, borehole wall shutoff tester in the dynamic coal seam of described drilling fluid further comprises: the second filtrate condensation receiver, described the second filtrate condensation receiver is connected with described coal seam pit shaft by pipeline passway.
Preferably, described the first filtrate condensation receiver is provided with the first filter screen with the filtrate (liquid place that described coal seam pit shaft is connected; Described the second filtrate condensation receiver is provided with the second filter screen with the filtrate (liquid place that described coal seam pit shaft is connected.
Preferably, the pipeline passway between described coal seam pit shaft and described the first filtrate condensation receiver is provided with the first pressure meter and the first filtrate (liquid valve; Pipeline passway between described coal seam pit shaft and described the second filtrate condensation receiver is provided with the second pressure meter and the second filtrate (liquid valve.
Preferably, the pipeline passway between described pit shaft circulation of drilling fluid outlet and described drilling fluid container loop head is provided with pit shaft drilling fluid outlet valve; Pipeline passway between described drilling fluid container loop exit and described flow control valve is provided with drilling fluid container loop exit valve.
Preferably, described drilling fluid container is provided with drilling fluid container upper cover.
Preferably, described drilling fluid outside of containers is provided with heating jacket.
Pass through technique scheme, this tester manipulation or easy to use, can simulate drilling fluid circulates under the condition of certain high temperature and flow velocity in the borehole wall, this artificial pit shaft can have two filtrate (liquids, for measuring the situation of change of oozing filtrate volume caught on a filter and observing the coal seam borehole wall, can also directly observe different drilling fluid systems and the influence degree of plugging material to coal seam wellbore stability.
Other feature and advantage of the present utility model are described in detail the specific embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for manual, is used from explanation the utility model, but does not form restriction of the present utility model with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of the dynamic coal seam of drilling fluid borehole wall shutoff tester.
Description of reference numerals
1, the first filtrate condensation receiver; 2, the first filtrate (liquid valve; 3, the first pressure meter; 4, the coal seam borehole wall; 5, coal seam pit shaft; 6, pit shaft upper cover; 7, pit shaft circulation of drilling fluid outlet; 8, pit shaft drilling fluid outlet valve; 9, the second pressure meter; 10, the second filtrate (liquid valve; 11, drilling fluid container; 12, drilling fluid container upper cover; 13, heating jacket; 14, drilling fluid container loop head; 15, drilling fluid container loop exit; 16, drilling fluid container loop exit valve; 17, the second filtrate condensation receiver; 18, flow control valve; 19, slush pump; 20, pit shaft circulation of drilling fluid entrance; 21, the first filter screen; 22, the second filter screen.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
As shown in Figure 1, the utility model provides the dynamic coal seam of a kind of drilling fluid borehole wall shutoff tester, comprising: the coal seam borehole wall 4, coal seam pit shaft 5, the first filtrate condensation receiver 1, drilling fluid container 11, flow control valve 18 and slush pump 19; The described coal seam borehole wall 4 is positioned at coal seam pit shaft 5; Pit shaft 5 tops, described coal seam and bottom are respectively equipped with the outlet 7 of pit shaft circulation of drilling fluid and pit shaft circulation of drilling fluid entrance 20, described drilling fluid container 11 upper and lowers are respectively equipped with drilling fluid container loop head 14 and drilling fluid container loop exit 15, described pit shaft circulation of drilling fluid outlet 7 is connected with described drilling fluid container loop head 14 by pipeline passway, and described drilling fluid container loop exit 15 is connected with described pit shaft circulation of drilling fluid entrance 20 by pipeline passway; Described the first filtrate condensation receiver 1 is connected with described coal seam pit shaft 5 by pipeline passway; Described slush pump 19 and described flow control valve 18 are on the pipeline passway between described drilling fluid container loop exit 15 and described pit shaft circulation of drilling fluid entrance 20, for setting up the circulation of drilling fluid and the flow of control circulation of drilling fluid.
The described coal seam borehole wall 4 filling coal seam landwaste or coal dust, quartz sand.
Described coal seam pit shaft 5 is provided with pit shaft upper cover 6, for sealing described coal seam pit shaft 5.
The described coal seam borehole wall 4 has certain space with pit shaft 5 tops, described coal seam, for the drilling fluid of buffer cycles.
Borehole wall shutoff tester in the dynamic coal seam of described drilling fluid further comprises: the second filtrate condensation receiver 17, described the second filtrate condensation receiver 17 is connected with described coal seam pit shaft 5 by pipeline passway.
The filtrate (liquid place that described the first filtrate condensation receiver 1 is connected with described coal seam pit shaft 5 is provided with the first filter screen 22; The filtrate (liquid place that described the second filtrate condensation receiver 17 is connected with described coal seam pit shaft 5 is provided with the second filter screen 21.These two filter screens are used for filtering drilling fluid, prevent that pipeline passway from stopping up.
Pipeline passway between described coal seam pit shaft 5 and described the first filtrate condensation receiver 1 is provided with the first pressure meter 3 and the first filtrate (liquid valve 2; Pipeline passway between described coal seam pit shaft 5 and described the second filtrate condensation receiver 17 is provided with the second pressure meter 9 and the second filtrate (liquid valve 10.
Pipeline passway between described pit shaft circulation of drilling fluid outlet 7 and described drilling fluid container loop head 14 is provided with pit shaft drilling fluid outlet valve 8; Pipeline passway between described drilling fluid container loop exit 15 and described flow control valve 18 is provided with drilling fluid container loop exit valve 16.
Described drilling fluid container 11 is provided with drilling fluid container upper cover 12, for sealing described drilling fluid container 11.
Described drilling fluid container 11 outsides are provided with heating jacket 13, for heating drilling fluid container 11.Drilling fluid concentration dilution under high temperature, the flow velocity of acceleration drilling fluid; Temperature is higher, and the concentration of drilling fluid is lower, more by the drilling fluid of pipeline passway.
Utilize the utility model to carry out the concrete operations that drilling fluid coal seam shutoff evaluates as follows:
Mix with certain proportion with coal, sand and swell soil at the trial, suppress the artificial coal seam borehole wall 4 and put into coal seam pit shaft 5, tighten pit shaft upper cover 6; The drilling fluid configuring is packed in drilling fluid container 11, tighten drilling fluid container upper cover 12; Open heating jacket 13, after temperature reaches test temperature requirement, open pit shaft drilling fluid outlet valve 8 and drilling fluid container loop exit valve 16, open the first filtrate (liquid valve 2 and the second filtrate (liquid valve 10, open slush pump 19 and flow control valve 18, drilling fluid test flow is set; Now, drilling fluid circulates, monitor drilling fluid by the first pressure meter 3 and the second pressure meter 9 pressure in coal seam is transmitted to situation, monitor the filter loss of drilling fluid to coal seam infiltration by the first filtrate condensation receiver 1 and the second filtrate condensation receiver 17, thereby can analyze the comprehensive shut-off capacity of drilling fluid to coal seam.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Claims (9)
1. the dynamic coal seam of a drilling fluid borehole wall shutoff tester, is characterized in that, comprising: the coal seam borehole wall (4), coal seam pit shaft (5), the first filtrate condensation receiver (1), drilling fluid container (11), flow control valve (18) and slush pump (19);
The described coal seam borehole wall (4) is positioned at coal seam pit shaft (5);
Pit shaft (5) top, described coal seam and bottom are respectively equipped with the outlet of pit shaft circulation of drilling fluid (7) and pit shaft circulation of drilling fluid entrance (20), described drilling fluid container (11) upper and lower is respectively equipped with drilling fluid container loop head (14) and drilling fluid container loop exit (15), described pit shaft circulation of drilling fluid outlet (7) is connected with described drilling fluid container loop head (14) by pipeline passway, and described drilling fluid container loop exit (15) is connected with described pit shaft circulation of drilling fluid entrance (20) by pipeline passway;
Described the first filtrate condensation receiver (1) is connected with described coal seam pit shaft (5) by pipeline passway;
Described slush pump (19) and described flow control valve (18) are positioned on the pipeline passway between described drilling fluid container loop exit (15) and described pit shaft circulation of drilling fluid entrance (20), for setting up the circulation of drilling fluid and the flow of control circulation of drilling fluid.
2. the dynamic coal seam of drilling fluid according to claim 1 borehole wall shutoff tester, is characterized in that, described coal seam pit shaft (5) is provided with pit shaft upper cover (6).
3. the dynamic coal seam of drilling fluid according to claim 1 borehole wall shutoff tester, is characterized in that, the described coal seam borehole wall (4) has certain space with described coal seam pit shaft (5) top, for the drilling fluid of buffer cycles.
4. the dynamic coal seam of drilling fluid according to claim 1 borehole wall shutoff tester, it is characterized in that, borehole wall shutoff tester in the dynamic coal seam of described drilling fluid further comprises: the second filtrate condensation receiver (17), described the second filtrate condensation receiver (17) is connected with described coal seam pit shaft (5) by pipeline passway.
5. the dynamic coal seam of drilling fluid according to claim 4 borehole wall shutoff tester, is characterized in that, the filtrate (liquid place that described the first filtrate condensation receiver (1) is connected with described coal seam pit shaft (5) is provided with the first filter screen (22);
The filtrate (liquid place that described the second filtrate condensation receiver (17) is connected with described coal seam pit shaft (5) is provided with the second filter screen (21).
6. the dynamic coal seam of drilling fluid according to claim 5 borehole wall shutoff tester, it is characterized in that, the pipeline passway between described coal seam pit shaft (5) and described the first filtrate condensation receiver (1) is provided with the first pressure meter (3) and the first filtrate (liquid valve (2);
Pipeline passway between described coal seam pit shaft (5) and described the second filtrate condensation receiver (17) is provided with the second pressure meter (9) and the second filtrate (liquid valve (10).
7. the dynamic coal seam of drilling fluid according to claim 1 borehole wall shutoff tester, it is characterized in that, the pipeline passway between described pit shaft circulation of drilling fluid outlet (7) and described drilling fluid container loop head (14) is provided with pit shaft drilling fluid outlet valve (8);
Pipeline passway between described drilling fluid container loop exit (15) and described flow control valve (18) is provided with drilling fluid container loop exit valve (16).
8. the dynamic coal seam of drilling fluid according to claim 1 borehole wall shutoff tester, is characterized in that, described drilling fluid container (11) is provided with drilling fluid container upper cover (12).
9. the dynamic coal seam of drilling fluid according to claim 1 borehole wall shutoff tester, is characterized in that, described drilling fluid container (11) outside is provided with heating jacket (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581132.9U CN203626829U (en) | 2013-09-18 | 2013-09-18 | Tester for dynamic drilling fluid blockage of coal bed shaft wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581132.9U CN203626829U (en) | 2013-09-18 | 2013-09-18 | Tester for dynamic drilling fluid blockage of coal bed shaft wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626829U true CN203626829U (en) | 2014-06-04 |
Family
ID=50813318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320581132.9U Expired - Fee Related CN203626829U (en) | 2013-09-18 | 2013-09-18 | Tester for dynamic drilling fluid blockage of coal bed shaft wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453867A (en) * | 2013-09-18 | 2015-03-25 | 中国海洋石油总公司 | Drilling fluid dynamic coal seam borehole wall plugging tester |
| CN105223007A (en) * | 2015-09-29 | 2016-01-06 | 中国海洋石油总公司 | Oil/gas Well rupture disk performance test evaluating apparatus |
-
2013
- 2013-09-18 CN CN201320581132.9U patent/CN203626829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453867A (en) * | 2013-09-18 | 2015-03-25 | 中国海洋石油总公司 | Drilling fluid dynamic coal seam borehole wall plugging tester |
| CN105223007A (en) * | 2015-09-29 | 2016-01-06 | 中国海洋石油总公司 | Oil/gas Well rupture disk performance test evaluating apparatus |
| CN105223007B (en) * | 2015-09-29 | 2017-08-08 | 中海油能源发展股份有限公司 | Oil/gas Well rupture disk performance test evaluating apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106596371B (en) | Saturation conditions condensate gas reservoir failure formula develops nearly wellblock retrograde condensation damage experiment evaluation method | |
| CN103926267B (en) | A kind of method of pore throat intensity of variation in quantitative assessment stress sensitive process | |
| WO2018184397A1 (en) | Integrated evaluation, testing and simulation apparatus for wellbore sand-control blocking and unblocking, and method | |
| CN105464606B (en) | A kind of simulation drilling Double-working-condition sand-carrying production Multiphase Flow experimental provision and method | |
| CN107121370A (en) | Fine and close oil reservoir Water trapping damages experimental evaluation method | |
| CN101487831B (en) | Method for fast confirming compact rock core damage | |
| CN102914494B (en) | Device for measuring dynamic leak-off of foam fracturing fluid and working method thereof | |
| CN103257151B (en) | In a kind of quantitative evaluation oil and gas secondary migration process, pore throat employs the method for rule | |
| CN109001438A (en) | A kind of joint seal gas shutoff experimental simulation device and test method | |
| CN104564043B (en) | A kind of diversion chamber of gas test compact reservoir seam net flow conductivity and its method of work | |
| CN108266166B (en) | Experimental device and method for evaluating fluctuation oil recovery micro-jet permeability-increasing mechanism of fractured reservoir | |
| CN111075441B (en) | Three-dimensional physical simulation experiment device and method for cold recovery after thermal recovery of side-bottom water heavy oil reservoir | |
| CN103161455A (en) | High temperature and high pressure shale well wall stability evaluation device | |
| CN109138998A (en) | A kind of experimental test procedures of low permeability reservoir high temperature and pressure imbibition oil-recovering rate | |
| CN103969160B (en) | The dynamic leak-off detection system of High Temperature High Pressure foam liquid and detection method thereof | |
| CN105388254A (en) | High-temperature high-pressure foam fracturing fluid leak-off damage experiment system | |
| CN105023496B (en) | Fracture belt mudstone creep closure oil-gas migration experimental provision and experimental technique | |
| CN204327083U (en) | A kind of diversion chamber of gas test compact reservoir seam net flow conductivity | |
| CN106706492A (en) | Penetration device for researching porous medium whole-zone penetration mechanism | |
| CN202381087U (en) | Device for evaluating borehole stability of mud shale at high temperature and high pressure | |
| CN208137906U (en) | Actual triaxial testing apparatus is used in a kind of temporarily stifled steering behaviour evaluation | |
| Ma et al. | Simulation and interpretation of the pressure response for formation testing while drilling | |
| CN105114055A (en) | Test method for transport simulation of pulverized coal mined and output from coal-bed gas well | |
| CN108287123A (en) | A kind of measurement CO2The visualization device and method of solid-carrying performance under the conditions of fracturing fluid high pressure dynamic filtration | |
| CN203626829U (en) | Tester for dynamic drilling fluid blockage of coal bed shaft wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: SHANGHAI BRANCH, CHINA OILFIELD SERVICES Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: HUBEI HANC NEW-TECHNOLOGY Co.,Ltd. Address before: 100010 Beijing City, Dongcheng District Chaoyangmen No. 25 North Street CNOOC building Co-patentee before: SHANGHAI BRANCH, CHINA OILFIELD SERVICES Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: HUBEI HANC NEW-TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20210918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |