CN111927352A - Continuous circulation device for drilling fluid and using method thereof - Google Patents
Continuous circulation device for drilling fluid and using method thereof Download PDFInfo
- Publication number
- CN111927352A CN111927352A CN202010936609.5A CN202010936609A CN111927352A CN 111927352 A CN111927352 A CN 111927352A CN 202010936609 A CN202010936609 A CN 202010936609A CN 111927352 A CN111927352 A CN 111927352A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- valve
- plate
- drilling
- seat
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 152
- 239000012530 fluid Substances 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007667 floating Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of well fixing and completing devices, in particular to a drilling fluid continuous circulating device and a using method thereof, wherein the drilling fluid continuous circulating device comprises a body, a plate-type floating valve and a side-through valve, an axial channel which is communicated up and down is arranged in the body, the axial channel comprises an upper straight hole and a lower straight hole, and the inner diameter of the upper straight hole is larger than that of the lower straight hole; a plate-type floating valve capable of opening and closing the axial channel is installed in the upper straight hole in a limiting way; the latter can be divided into drilling conditions and make-up or pull-down conditions. The invention has reasonable and compact structure and convenient use, solves the switching of fluid channels of drilling fluid under the working conditions of drilling and single joint connection or tripping through the alternate opening and closing of the plate-type floating valve and the side-through valve, and realizes the continuous circulation of drilling fluid in a drill column; through setting up the observation hole, improve the security that fluid passage switched, have high efficiency, stable and safe characteristics.
Description
Technical Field
The invention relates to the technical field of well cementing and completion devices, in particular to a drilling fluid continuous circulation device and a using method thereof.
Background
Continuous circulation drilling is an advanced drilling technology, and during the period of connecting a single joint or an upright column, a drilling fluid flow channel steering control device is utilized to keep the continuous circulation of the drilling fluid in a drill column, so that stable equivalent circulation density and uninterrupted drill cuttings discharge are realized during drilling, bottom hole pressure fluctuation caused by pump stopping and pump starting circulation is avoided, the borehole condition and the drilling safety are comprehensively improved, the drilling accidents are greatly reduced, and the total mechanical drilling speed is improved. The continuous circulation drilling technology can obviously improve the drilling efficiency and provide strong power and technical support for the acceleration of drilling and the yield increase of oil and gas. The existing continuous circulating device is easy to generate underground complex conditions after circulation stops (pump stopping, drill pulling and the like), and can not realize constant control of bottom pressure in the process of pump stopping and starting.
Disclosure of Invention
The invention provides a drilling fluid continuous circulation device and a using method thereof, overcomes the defects of the prior art, and can effectively solve the problem that the bottom hole pressure of the existing continuous circulation drilling tool can not be constantly controlled after circulation is stopped.
One of the technical schemes of the invention is realized by the following measures: a drilling fluid continuous circulation device comprises a body, a plate-type floating valve and a side-through valve, wherein an axial channel which is communicated up and down is arranged in the body, the axial channel comprises an upper straight hole and a lower straight hole, and the inner diameter of the upper straight hole is larger than that of the lower straight hole; a plate-type floating valve capable of opening and closing the axial channel is installed in the upper straight hole in a limiting way; the body right side that corresponds straight hole middle part position down is equipped with the radial passage that can communicate with straight hole down, be equipped with the side-through valve in the radial passage, the side-through valve includes the disk seat, valve plate and end cap subassembly, fixed mounting has the disk seat in the radial passage, the disk seat middle part is equipped with controls the radial passage who link up, be equipped with the valve plate that can shutoff radial passage in the disk seat, be equipped with between disk seat left end and the valve plate right-hand member and enable to be the valve plate under the closed condition and open and decompress the spacing subassembly that resets after the pressurized, disk seat right-hand member inboard fixed mounting has.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
the device also comprises a fixed pin, the plug assembly comprises a valve seat plug and a pressure observation plug, the valve seat plug is fixedly arranged on the inner side of the right end of the valve seat, a left-right through observation hole is formed in the middle of the valve seat plug, and the pressure observation plug is fixedly arranged in the observation hole; an inclined through hole which can be communicated with the radial channel is formed in the outer side of the right end of the valve seat, an inclined blind hole is formed in the outer side of the valve seat plug corresponding to the inclined through hole, and a fixing pin with the inner end located in the inclined blind hole is arranged in the inclined through hole.
The limiting assembly can comprise a front hinged seat, a rear hinged seat, a front tongue plate, a rear tongue plate, an articulated shaft and a reset torsion spring, wherein the front hinged seat and the rear hinged seat are fixedly installed on the upper portion of the left side of the valve seat at the front and the rear, the front tongue plate and the rear tongue plate are arranged on the upper portion of the left side of the valve plate at the front and the rear, the front tongue plate and the rear tongue plate are fixedly installed together corresponding to the upper portion of the left side of the valve plate at the front and the rear, the front hinged seat, the front tongue plate, the rear tongue plate and the rear hinged seat are provided with mounting holes which are communicated with the front and the rear in the same position, the reset torsion spring is arranged between the front tongue plate and the rear tongue plate, the front hinged seat, the front tongue plate, the reset torsion spring is hinged together with the articulated seat sequentially through the.
The upper limiting device can further comprise an upper limiting device, the upper limiting device comprises a splicing ring and a supporting ring, an annular groove is formed in the inner side of the upper portion of the body, the splicing ring is arranged in the annular groove, the supporting ring is fixedly mounted on the inner side of the lower portion of the splicing ring, and the plate-type floating valve is clamped on the lower portion of the supporting ring.
The valve plate can further comprise a lower fixing device, the lower fixing device comprises a pressing plate and a screw, the right side of the body corresponding to the upper end of the radial channel is provided with an installation vertical groove, the pressing plate with the lower end located on the upper portion of the right side of the valve plate is arranged in the installation vertical groove, and the pressing plate is fixedly installed with the body through the screw.
The valve also comprises an O-shaped sealing ring, the O-shaped sealing ring is arranged between the valve seat and the body, and the O-shaped sealing ring is arranged between the valve plate and the valve seat.
The second technical scheme of the invention is realized by the following measures: the use method of the drilling fluid continuous circulation device comprises the following steps: under the working condition of drilling, firstly, connecting a drilling fluid continuous circulating device to the upper end of a drilling tool of a drilling team; secondly, starting a drilling pump, and enabling the drilling fluid to enter a drilling fluid continuous circulation device through the drilling pump and a main circulation passage of a drilling fluid continuous circulation control device; thirdly, under the pressure action of the drilling fluid, the plate-type floating valve is opened, and at the moment, as the side through valve of the drilling fluid continuous circulating device is closed, the drilling fluid enters a drilling tool connected with the lower part of the drilling fluid continuous circulating device; fourthly, the drilling fluid descends, flows back to a drilling fluid storage point through a drilling fluid channel, and then enters the drilling pump for continuous circulation; under the working condition of connecting a single joint or tripping in, firstly, connecting a drilling fluid continuous circulation device to the top end of a drilling tool of a drilling team; secondly, the pressure observation plug is removed, and whether gas or liquid is sprayed out in the observation hole is observed; thirdly, when gas or liquid is sprayed out from the observation hole, a pressure observation plug is installed, and a pressure relief passage of the drilling fluid continuous circulation control device is opened to stop pumping and relieve pressure; fourthly, when no gas or liquid is sprayed out from the observation hole, the valve seat plug is disassembled, and the pipeline on the side circulation passage of the drilling fluid continuous circulation control device is connected; fifthly, starting a drilling pump, and enabling drilling fluid to enter a radial channel through the drilling pump and a side circulation passage of a drilling fluid continuous circulation control device; sixthly, under the pressure action of the drilling fluid, the side valve is opened, and the drilling fluid enters a drilling tool connected with the lower part of the drilling fluid continuous circulating device; and seventhly, the drilling fluid descends, flows back to a drilling fluid storage point through the drilling fluid channel, and then enters the drilling pump for continuous circulation.
The invention has reasonable and compact structure and convenient use, solves the switching of fluid channels of drilling fluid under the working conditions of drilling and single joint connection or tripping through the alternate opening and closing of the plate-type floating valve and the side-through valve, and realizes the continuous circulation of drilling fluid in a drill column; through setting up the observation hole, improve the security that fluid passage switched, have high efficiency, stable and safe characteristics.
Drawings
Fig. 1 is a schematic front view of the preferred embodiment of the present invention.
Fig. 2 is a left enlarged structural diagram of the side valve in fig. 1.
The codes in the figures are respectively: the valve comprises a body 1, a plate-type floating valve 2, an axial channel 3, a valve seat 4, a valve plate 5, a radial channel 6, a fixing pin 7, a valve seat plug 8, a pressure observation plug 9, a front hinged seat 10, a rear hinged seat 11, a front tongue plate 12, a rear tongue plate 13, a hinged shaft 14, a reset torsion spring 15, a split ring 16, a supporting ring 17, a pressing plate 18, a screw 19 and an O-shaped sealing ring 20.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described with reference to the following examples and figures:
as shown in attached figures 1 and 2, the drilling fluid continuous circulation device comprises a body 1, a plate-type floating valve 2 and a side-through valve, wherein an axial channel 3 which is communicated up and down is arranged in the body 1, the axial channel 3 comprises an upper straight hole and a lower straight hole, and the inner diameter of the upper straight hole is larger than that of the lower straight hole; a plate-type floating valve 2 capable of opening and closing the axial channel 3 is arranged in the upper straight hole in a limiting way; the body 1 right side that corresponds down straight hole middle part position is equipped with the radial passage 6 that can communicate with straight hole down, be equipped with the side-through valve in the radial passage 6, the side-through valve includes disk seat 4, valve plate 5 and end cap subassembly, fixed mounting has disk seat 4 in the radial passage 6, the radial passage 6 that link up about disk seat 4 middle part is equipped with, be equipped with the valve plate 5 that can shutoff radial passage 6 in the disk seat 4, be equipped with between disk seat 4 left end and the 5 right-hand members of valve plate and enable to be the valve plate 5 under the closed condition and open and decompress the spacing subassembly that resets after the pressurized, disk seat 4 right-hand member inboard fixed mounting has the end. In the using process, the switching of a fluid channel of drilling fluid under the drilling working condition and the working condition of connecting a single or tripping a drill is realized by alternately opening and closing the plate-type floating valve 2 and the side-through valve, the continuous circulation of the drilling fluid in a drill string is realized, and the constant control of the bottom pressure of a well in the process of stopping and starting the pump can be realized.
The drilling fluid continuous circulation device can be further optimized or/and improved according to actual needs:
as shown in the attached drawings 1 and 2, the pressure monitoring device further comprises a fixed pin 7, the plug assembly comprises a valve seat plug 8 and a pressure monitoring plug 9, the valve seat plug 8 is fixedly installed on the inner side of the right end of the valve seat 4, a left-right through observation hole is formed in the middle of the valve seat plug 8, and the pressure monitoring plug 9 is fixedly installed in the observation hole; an inclined through hole which can be communicated with the radial channel 6 is formed in the outer side of the right end of the valve seat 4, an inclined blind hole is formed in the outer side of the valve seat plug 8 corresponding to the inclined through hole, and a fixing pin 7 with the inner end located in the inclined blind hole is arranged in the inclined through hole. In the use, through dismantling pressure observation end cap 9, whether there is fluid or gaseous blowout in the observation hole to know whether the pressure in the body 1 can demolish disk seat end cap 8 and connect the circulation under single or the working condition of tripping.
As shown in the accompanying drawings 1 and 2, the limiting assembly comprises a front hinge seat 10, a rear hinge seat 11, a front tongue plate 12, a rear tongue plate 13, a hinge shaft 14 and a reset torsion spring 15, wherein the front hinge seat 10 and the rear hinge seat 11 are fixedly installed on the upper portion of the left side of the valve seat 4 at a front-rear interval, the front hinge seat 10 and the rear hinge seat 11 are arranged between the front hinge seat 10 and the rear hinge seat 11 at a front-rear interval, the front tongue plate 12 and the rear tongue plate 13 are positioned on the upper portion of the left side of the valve plate 5 at a front-rear interval, the right sides of the front tongue plate 12 and the rear tongue plate 13 are fixedly installed together corresponding to the upper portion of the left side of the valve plate 5, the front hinge seat 10, the front tongue plate 12, the rear tongue plate 13 and the rear hinge seat 11 are provided with mounting holes which are through from front to rear at the same positions, the reset torsion spring 15 is arranged between the front hinge seat, the second end of the reset torsion spring 15 is abutted against the left side of the valve plate 5. In the use process, through the arrangement, the valve plate 5 can turn over around the hinge shaft 14 anticlockwise to open the radial channel 6 under the pressure action of the drilling fluid from outside to inside, and can avoid opening the radial channel 6 under the pressure action of the drilling fluid from inside to outside; by arranging the return torsion spring 15, the valve plate 5 can be turned clockwise around the hinge shaft 14 to close the radial passage 6 without being subjected to the pressure of the drilling fluid from the outside to the inside.
As shown in the attached figures 1 and 2, the floating valve further comprises an upper limiting device, the upper limiting device comprises a split ring 16 and a supporting ring 17, an annular groove is formed in the inner side of the upper portion of the body 1, the split ring 16 is arranged in the annular groove, the supporting ring 17 is fixedly mounted on the inner side of the lower portion of the split ring 16, and the plate-type floating valve 2 is clamped on the lower portion of the supporting ring 17. In the use process, the plate-type floating valve 2 is convenient to disassemble and assemble through the arrangement.
As shown in the attached drawings 1 and 2, the device further comprises a lower fixing device, the lower fixing device comprises a pressing plate 18 and a screw 19, the right side of the body 1 corresponding to the upper end position of the radial channel 6 is provided with a vertical installation groove, the pressing plate 18 with the lower end positioned at the upper part of the right side of the valve plate 5 is arranged in the vertical installation groove, and the pressing plate 18 is fixedly installed with the body 1 through the screw 19. In the use, through such setting be convenient for dismouting side through valve.
As shown in fig. 1 and 2, the valve further comprises an O-ring 20, the O-ring 20 is arranged between the valve seat 4 and the body 1, and the O-ring 20 is arranged between the valve plate 5 and the valve seat 4. During the use process, the arrangement ensures the sealing performance of the interior of the invention and prevents the drilling fluid from leaking.
A method of running casing in a well using the continuous circulation apparatus for drilling fluid as described above, as shown in figures 1 and 2, comprises the steps of: under the working condition of drilling, firstly, connecting a drilling fluid continuous circulating device to the upper end of a drilling tool of a drilling team; secondly, starting a drilling pump, and enabling the drilling fluid to enter a drilling fluid continuous circulation device through the drilling pump and a main circulation passage of a drilling fluid continuous circulation control device; thirdly, under the pressure action of the drilling fluid, the plate-type floating valve 2 is opened, and at the moment, as the side through valve of the drilling fluid continuous circulating device is closed, the drilling fluid enters a drilling tool connected with the lower part of the drilling fluid continuous circulating device; fourthly, the drilling fluid descends, flows back to a drilling fluid storage point through a drilling fluid channel, and then enters the drilling pump for continuous circulation; under the working condition of connecting a single joint or tripping in, firstly, connecting a drilling fluid continuous circulation device to the top end of a drilling tool of a drilling team; secondly, the pressure observation plug 9 is removed, and whether gas or liquid is sprayed out from the observation hole is observed; thirdly, when gas or liquid is sprayed out from the observation hole, a pressure observation plug 9 is installed, and a pressure relief passage of the drilling fluid continuous circulation control device is opened to stop pumping and relieve pressure; fourthly, when no gas or liquid is sprayed out from the observation hole, the valve seat plug 8 is disassembled and is connected with a pipeline on a side circulation passage of the drilling fluid continuous circulation control device; fifthly, starting a drilling pump, and enabling drilling fluid to enter a radial channel 6 through the drilling pump and a side circulation passage of a drilling fluid continuous circulation control device; sixthly, under the pressure action of the drilling fluid, the side valve is opened, and the drilling fluid enters a drilling tool connected with the lower part of the drilling fluid continuous circulating device; and seventhly, the drilling fluid descends, flows back to a drilling fluid storage point through the drilling fluid channel, and then enters the drilling pump for continuous circulation.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (10)
1. A drilling fluid continuous circulation device is characterized by comprising a body, a plate-type floating valve and a side-through valve, wherein an up-down through axial channel is arranged in the body, the axial channel comprises an upper straight hole and a lower straight hole, and the inner diameter of the upper straight hole is larger than that of the lower straight hole; a plate-type floating valve capable of opening and closing the axial channel is installed in the upper straight hole in a limiting way; the body right side that corresponds straight hole middle part position down is equipped with the radial passage that can communicate with straight hole down, be equipped with the side-through valve in the radial passage, the side-through valve includes the disk seat, valve plate and end cap subassembly, fixed mounting has the disk seat in the radial passage, the disk seat middle part is equipped with controls the radial passage who link up, be equipped with the valve plate that can shutoff radial passage in the disk seat, be equipped with between disk seat left end and the valve plate right-hand member and enable to be the valve plate under the closed condition and open and decompress the spacing subassembly that resets after the pressurized, disk seat right-hand member inboard fixed mounting has.
2. The continuous drilling fluid circulation device according to claim 1, further comprising a fixed pin, wherein the plug assembly comprises a valve seat plug and a pressure observation plug, the valve seat plug is fixedly installed on the inner side of the right end of the valve seat, an observation hole which is communicated with the left and right is formed in the middle of the valve seat plug, and the pressure observation plug is fixedly installed in the observation hole; an inclined through hole which can be communicated with the radial channel is formed in the outer side of the right end of the valve seat, an inclined blind hole is formed in the outer side of the valve seat plug corresponding to the inclined through hole, and a fixing pin with the inner end located in the inclined blind hole is arranged in the inclined through hole.
3. The continuous drilling fluid circulation device according to claim 1 or 2, wherein the limiting assembly comprises a front hinge seat, a rear hinge seat, a front tongue plate, a rear tongue plate, an articulated shaft and a return torsion spring, the front hinge seat and the rear hinge seat are fixedly installed on the upper portion of the left side of the valve seat at intervals in the front and rear direction, the front tongue plate and the rear tongue plate are arranged between the front hinge seat and the rear hinge seat at intervals in the front and rear direction, the lower portion of the front tongue plate and the lower portion of the rear tongue plate are positioned on the upper portion of the left side of the valve plate, the right sides of the front tongue plate and the rear tongue plate are fixedly installed together corresponding to the upper portion of the left side of the valve plate, the front hinge seat, the front tongue plate, the rear tongue plate and the rear hinge seat are provided with mounting holes which are through in the front and rear directions at the same positions, the return, the second end of the reset torsion spring is propped against the left side of the valve plate.
4. The continuous drilling fluid circulation device according to claim 1 or 2, further comprising an upper limiting device, wherein the upper limiting device comprises a split ring and a support ring, an annular groove is formed in the inner side of the upper portion of the body, the split ring is arranged in the annular groove, the support ring is fixedly mounted on the inner side of the lower portion of the split ring, and the plate-type float valve is clamped on the lower portion of the support ring.
5. The continuous circulation device for drilling fluid according to claim 3, further comprising an upper limiting device, wherein the upper limiting device comprises a split ring and a support ring, an annular groove is formed in the inner side of the upper portion of the body, the split ring is arranged in the annular groove, the support ring is fixedly mounted on the inner side of the lower portion of the split ring, and the plate-type float valve is clamped on the lower portion of the support ring.
6. The continuous drilling fluid circulation device according to claim 1, 2 or 5, further comprising a lower fixing device, wherein the lower fixing device comprises a pressing plate and a screw, a mounting vertical groove is formed in the right side of the body corresponding to the upper end of the radial passage, the pressing plate is arranged in the mounting vertical groove, the lower end of the pressing plate is located at the upper portion of the right side of the valve plate, and the pressing plate is fixedly mounted with the body through the screw.
7. The continuous circulation device for drilling fluid according to claim 3, further comprising a lower fixing device, wherein the lower fixing device comprises a pressing plate and a screw, a mounting vertical groove is formed in the right side of the body corresponding to the upper end of the radial passage, the pressing plate is arranged in the mounting vertical groove and located at the upper portion of the right side of the valve plate at the lower end, and the pressing plate is fixedly mounted with the body through the screw.
8. The continuous circulation device for drilling fluid according to claim 4, further comprising a lower fixing device, wherein the lower fixing device comprises a pressing plate and a screw, a mounting vertical groove is formed in the right side of the body corresponding to the upper end of the radial passage, the pressing plate is arranged in the mounting vertical groove and located at the upper portion of the right side of the valve plate at the lower end, and the pressing plate is fixedly mounted with the body through the screw.
9. The continuous circulation apparatus for drilling fluid according to claim 1, 2, 5, 7 or 8, further comprising an O-ring, wherein the O-ring is disposed between the valve seat and the body, and the O-ring is disposed between the valve plate and the valve seat.
10. A method of using the continuous circulation apparatus for drilling fluid as claimed in any one of claims 2 to 9, wherein the method is carried out by the steps of: under the working condition of drilling, firstly, connecting a drilling fluid continuous circulating device to the upper end of a drilling tool of a drilling team; secondly, starting a drilling pump, and enabling the drilling fluid to enter a drilling fluid continuous circulation device through the drilling pump and a main circulation passage of a drilling fluid continuous circulation control device; thirdly, under the pressure action of the drilling fluid, the plate-type floating valve is opened, and at the moment, as the side through valve of the drilling fluid continuous circulating device is closed, the drilling fluid enters a drilling tool connected with the lower part of the drilling fluid continuous circulating device; fourthly, the drilling fluid descends, flows back to a drilling fluid storage point through a drilling fluid channel, and then enters the drilling pump for continuous circulation; under the working condition of connecting a single joint or tripping in, firstly, connecting a drilling fluid continuous circulation device to the top end of a drilling tool of a drilling team; secondly, the pressure observation plug is removed, and whether gas or liquid is sprayed out in the observation hole is observed; thirdly, when gas or liquid is sprayed out from the observation hole, a pressure observation plug is installed, and a pressure relief passage of the drilling fluid continuous circulation control device is opened to stop pumping and relieve pressure; fourthly, when no gas or liquid is sprayed out from the observation hole, the valve seat plug is disassembled, and the pipeline on the side circulation passage of the drilling fluid continuous circulation control device is connected; fifthly, starting a drilling pump, and enabling drilling fluid to enter a radial channel through the drilling pump and a side circulation passage of a drilling fluid continuous circulation control device; sixthly, under the pressure action of the drilling fluid, the side valve is opened, and the drilling fluid enters a drilling tool connected with the lower part of the drilling fluid continuous circulating device; and seventhly, the drilling fluid descends, flows back to a drilling fluid storage point through the drilling fluid channel, and then enters the drilling pump for continuous circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936609.5A CN111927352A (en) | 2020-09-08 | 2020-09-08 | Continuous circulation device for drilling fluid and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936609.5A CN111927352A (en) | 2020-09-08 | 2020-09-08 | Continuous circulation device for drilling fluid and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111927352A true CN111927352A (en) | 2020-11-13 |
Family
ID=73310114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010936609.5A Pending CN111927352A (en) | 2020-09-08 | 2020-09-08 | Continuous circulation device for drilling fluid and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111927352A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622864A (en) * | 2021-11-03 | 2022-06-14 | 中国石油天然气集团有限公司 | Continuous circulating valve suitable for inflation drilling, drilling system and process |
| CN114622848A (en) * | 2021-06-02 | 2022-06-14 | 中国石油天然气集团有限公司 | Rotatable uninterrupted circulating device and using method and circulating process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226382A (en) * | 2011-05-19 | 2011-10-26 | 深圳市远东石油钻采工程有限公司 | Uninterrupted circulating pup joint for petroleum well drilling and continuous slurry circulation method |
| CN103046883A (en) * | 2012-12-21 | 2013-04-17 | 成都欧迅海洋工程装备科技有限公司 | Continuous cyclic drilling process applicable to air drilling |
| CN103670307A (en) * | 2013-12-09 | 2014-03-26 | 中国石油集团长城钻探工程有限公司 | Short circuit guaranteeing drilling fluid continuous circulation and drilling fluid continuous circulation process thereof |
| CN203515402U (en) * | 2013-10-28 | 2014-04-02 | 王宗成 | Continuous circulating short piece applicable to oil and gas drilling |
| CN203742470U (en) * | 2014-02-10 | 2014-07-30 | 天津渤天顺科技有限公司 | Continuous circulation pup joint used for well drilling |
| CN104453752A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Drill pipe sub bypass valve and operation method |
-
2020
- 2020-09-08 CN CN202010936609.5A patent/CN111927352A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226382A (en) * | 2011-05-19 | 2011-10-26 | 深圳市远东石油钻采工程有限公司 | Uninterrupted circulating pup joint for petroleum well drilling and continuous slurry circulation method |
| CN103046883A (en) * | 2012-12-21 | 2013-04-17 | 成都欧迅海洋工程装备科技有限公司 | Continuous cyclic drilling process applicable to air drilling |
| CN104453752A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Drill pipe sub bypass valve and operation method |
| CN203515402U (en) * | 2013-10-28 | 2014-04-02 | 王宗成 | Continuous circulating short piece applicable to oil and gas drilling |
| CN103670307A (en) * | 2013-12-09 | 2014-03-26 | 中国石油集团长城钻探工程有限公司 | Short circuit guaranteeing drilling fluid continuous circulation and drilling fluid continuous circulation process thereof |
| CN203742470U (en) * | 2014-02-10 | 2014-07-30 | 天津渤天顺科技有限公司 | Continuous circulation pup joint used for well drilling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622848A (en) * | 2021-06-02 | 2022-06-14 | 中国石油天然气集团有限公司 | Rotatable uninterrupted circulating device and using method and circulating process thereof |
| CN114622864A (en) * | 2021-11-03 | 2022-06-14 | 中国石油天然气集团有限公司 | Continuous circulating valve suitable for inflation drilling, drilling system and process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111927352A (en) | Continuous circulation device for drilling fluid and using method thereof | |
| US8893799B2 (en) | Subsurface safety valve including safe additive injection | |
| CN105041252A (en) | Internally-lifting safety assembly for pressure-maintaining coring | |
| CN103930646A (en) | Annular barrier system with flow lines | |
| CN103147720A (en) | Hydraulic switching valve | |
| CN201202430Y (en) | Boring tool inner blowout preventer | |
| CN202165053U (en) | Novel hydraulic control underground sliding sleeve switch valve | |
| CN202866741U (en) | Expanding open hole packer with hydraulic control lock | |
| CN208184692U (en) | Deepwater drilling casing head and annular space sealing device tripping in tool | |
| CN102418496A (en) | Self-balanced underground full-bore check valve | |
| WO2019183713A1 (en) | Apparatuses, systems and methods for hydrocarbon material from a subterranean formation using a displacement process | |
| CN109798085B (en) | Normally closed type one-way injection downhole blowout preventer | |
| CN111022017A (en) | Manual fracturing and production wellhead device and using method thereof | |
| CN201460799U (en) | Concentric integrated water-plugging finding pipe column | |
| CN204002701U (en) | Pressure-controlled testing valve | |
| CN116335579A (en) | Oil field well casing packer and non-cementing injection self-plugging staged fracturing method | |
| CN115095303B (en) | Underground liquid control device and using method thereof | |
| US3451475A (en) | Well flow test apparatus | |
| CN205805531U (en) | Operating Pressure annulus logging wellhead assembly | |
| CN202596695U (en) | Downhole gas-injection tubular column | |
| CN112324387B (en) | But take one-way earial drainage function's switch sandblast sliding sleeve | |
| CN105781478A (en) | Pressure-limit-free hydraulic expansion type external casing packer assembly | |
| CN112482985A (en) | Drilling equipment is pressed in area of oil gas well head | |
| CN202832382U (en) | Safety valve of ground hydraulic control water injection well | |
| CN216008449U (en) | Ball valve type hydraulic control environment-friendly blowout preventer on pump for down-hole oil pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201113 |
|
| RJ01 | Rejection of invention patent application after publication |