CN108086932A - A kind of pressure testing device for preventing mud from being sprayed from oil pipe - Google Patents
A kind of pressure testing device for preventing mud from being sprayed from oil pipe Download PDFInfo
- Publication number
- CN108086932A CN108086932A CN201810062889.4A CN201810062889A CN108086932A CN 108086932 A CN108086932 A CN 108086932A CN 201810062889 A CN201810062889 A CN 201810062889A CN 108086932 A CN108086932 A CN 108086932A
- Authority
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- China
- Prior art keywords
- valve
- valve seat
- spring
- bonnet
- top connection
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- 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)
- Safety Valves (AREA)
Abstract
A kind of pressure testing device for preventing mud from being sprayed from oil pipe,Communication groove is provided on valve bonnet,The external screw thread that spring adjusts head lower part is connected with the internal thread on valve bonnet top,Pressure spring,Valve ball is placed in valve bonnet,The top screw thread of valve seat and the lower thread of valve bonnet connect,Valve ball diameter is more than the aperture of valve seat,The valve port fitted seal of valve ball and valve seat,The upper surface of pressure spring withstands on spring and adjusts on the lower face of head,Pressure spring pushes down valve ball,Spring adjusts head,Valve bonnet,Pressure spring,Valve ball,Valve seat is placed in after being assembled integrally in the lower part of top connection,Outer wall on valve bonnet on the communication groove and form circular passage between the inner wall of top connection,The liquid stream in valve bonnet is enable to flow away by the communication groove through the circular passage,Sealing element is installed between top connection and valve seat,Valve seat is connected to the lower part of top connection by level pressure pin,Level pressure pin is under sealing element,The top of lower contact and the lower thread of top connection connect.
Description
Technical field
The present invention is that the device of mud, well-flushing when operations is replaced in oil field, is a kind of examination for preventing mud from being sprayed from oil pipe
Pressure device.
Background technology
Oil field, when operations, for convenience to oil pipe pressure test, ball-and-seat is mounted in the lower part of tubing string for mud, well-flushing,
May also the major diameters instrument such as tripping in gauguste cutter, pipeline scraper, these major diameter instruments it exist together when operations for mud, well-flushing
Tripping in piston is equivalent in well during tripping in, when go into the well speed when, will in the formation pressure difference up and down of major diameter instrument,
The low pressure of major diameter instrument is higher than upper pressure, and well liquid will be pushed into oil by the high pressure of major diameter tool lower portion through ball-and-seat
In pipe, after making the pressure increase to a certain extent in oil pipe, well liquid during tubing string at the fast speed（Mud）It will be from the upper of tubing string
End is ejected into ground.After this problem of generation, on the one hand make job execution inconvenient, the well liquid of eruption（Mud）Work can be scattering into
It with industry worker, adds heavily to the difficulty of the work, reduces work efficiency, also because ground is wet and slippery operating worker security incident can be triggered to occur；
On the other hand well site can be polluted, causes environmental pollution.
The content of the invention
The purpose of the present invention is designing a kind of pressure testing device for preventing mud from being sprayed from oil pipe, above-mentioned ask is overcome
Topic, make its it is lower for mud, Flushing tubular column when, well liquid will not be sprayed from the upper end of tubing string, raising work efficiency, avoid occurring
Environmental pollution.
The object of the present invention is achieved like this：Head, valve bonnet, pressure spring, valve ball, close is adjusted including top connection, spring
Sealing, valve seat, level pressure pin, lower contact, communication groove is provided on valve bonnet, and spring adjusts the external screw thread of head lower part and valve bonnet top
Internal thread connects, and pressure spring, valve ball are placed in valve bonnet, and the top screw thread of valve seat and the lower thread of valve bonnet connect, connection
Place keeps sealing, and valve ball diameter is more than the valve port fitted seal in the aperture of valve seat, valve ball and valve seat, the upper surface top of pressure spring
On the lower face for adjusting head in spring, pressure spring pushes down valve ball, and spring adjusts head, valve bonnet, pressure spring, valve ball, valve seat group
It is placed in after dressing up one in the lower part of top connection, outer wall on valve bonnet on the communication groove and between the inner wall of top connection
Circular passage is formed, the liquid stream in valve bonnet is enable to flow away by the communication groove through the circular passage, top connection and valve
Sealing element, the gap between sealing element sealing top connection and valve seat are installed, valve seat is connected to top connection by level pressure pin between seat
Lower part, level pressure pin is under sealing element, and the top of lower contact and the lower thread of top connection connect.
Linked hole is arranged at the lower part of valve seat, and the outer diameter of valve seat is more than the internal diameter of lower contact lower part, and backwardness can connect by under under valve seat
The shoulder of head lower part blocks, and after valve seat whereabouts is blocked by the shoulder of lower contact lower part, it is downward that liquid stream can pass through the linked hole
Flowing.
The beneficial effects of the invention are as follows：Head is adjusted by torsional spring, the compression that pressure spring pushes down valve ball can be adjusted
Power, the pressure for making valve ball needs predetermined could be opened, when with gauguste cutter, pipeline scraper when major diameters work go into the well when generate piston
During effect, the high pressure liquid stream of valve ball lower part（Mud）Valve ball will not be opened to flow up, therefore, the present invention it is lower for mud, wash
During well casing column, well liquid will not be sprayed from the upper end of tubing string, be eliminated because piston effect is led to the problem of, and imitate its work operations
Rate is high, environmental pollution will not occur, well site ground will not be wet and slippery, will not trigger operating worker security incident, and valve ball falls in valve seat
On, tubing string is in closed state, and the tubing string degree pressure on it can be ensured each component sealed reliable on tubing string, can be carried
High job success ratio has significant economic benefit and social benefit.
Description of the drawings
Attached drawing 1 is the installation diagram of the embodiment of the present invention.
Specific embodiment
1 pair of the embodiment of the present invention illustrates below in conjunction with the accompanying drawings.
As shown in Figure 1, the embodiment of the present invention includes top connection 1, spring adjusts first 2, valve bonnet 3, pressure spring 4, valve ball
6th, sealing element 7, valve seat 8, level pressure pin 9, lower contact 11, communication groove 5 is provided on valve bonnet 3, and spring adjusts the external screw thread of first 2 lower part
It is connected with the internal thread on 3 top of valve bonnet, pressure spring 4, valve ball 6 are placed in valve bonnet 3, top screw thread and the valve bonnet 3 of valve seat 8
Lower thread connects, and junction keeps sealing, and 6 diameter of valve ball is more than the aperture of valve seat 8, and valve ball 6 and the valve port cooperation of valve seat 8 are close
Envelope, the upper surface of pressure spring 4 withstand on spring and adjust on first 2 lower face, and pressure spring 4 pushes down valve ball 6, spring adjusts first 2,
Valve bonnet 3, pressure spring 4, valve ball 6, valve seat 8 are placed in after being assembled integrally in the lower part of top connection 1, the connection on valve bonnet 3
Outer wall on straight slot 5 and formation circular passage 12 between the inner wall of top connection 1, make the liquid stream in valve bonnet 3（Mud）It can pass through
The communication groove 5 flows away through the circular passage 12, and sealing element 7 is installed between top connection 1 and valve seat 8（Sealing element 7 is installed
In annular handle slot on 8 outer wall of valve seat）, the gap between the sealing top connection 1 of sealing element 7 and valve seat 8, valve seat 8 is by level pressure pin
Nail 9 is connected to the lower part of top connection 1, and level pressure pin 9 is under sealing element 7, the top of lower contact 11 and the lower part of top connection 1
It is threadedly coupled.
The further measure of the present invention is that linked hole 10 is arranged at the lower part of valve seat 8, and the outer diameter of valve seat 8 is more than under lower contact 11
The internal diameter in portion, 8 times backwardnesss of valve seat can be blocked by the shoulder of 11 lower part of lower contact, and valve seat 8 falls by the shoulder of 11 lower part of lower contact
After blocking, liquid stream（Mud）It can flow downward by the linked hole 10.
After the present invention goes into the well with gauguste cutter, pipeline scraper, 6 low pressure of valve ball could be beaten when being higher than predetermined value than upper pressure
It opens, predetermined value is set to be more than the oil jacket pressure pressure difference that piston effect generates when going into the well, so, blowout will not occur when going into the well.
The liquid stream of tubing string G.I.H discharge（Mud）It is overflowed, will not be sprayed from tubing string top, well head by oil jacket annular space
Operation safe ready prevents mud contamination well head.The present invention under gauguste cutter, pipeline scraper to can realize counter follow behind shaft bottom
Washing-round well, for mud, well-flushing after, 20MPa is just suppressed in tubing string, to the tubing string on the present invention and all parts pressure testing,
It verifies the leakproofness of all parts and tubing string, after testing envelope, then by pressure rise to more than 22MPa, is broken level pressure pin 9
Disconnected, spring adjusts first 2, valve bonnet 3, pressure spring 4, valve ball 6, valve seat 8 and falls and blocked by the shoulder of 11 lower part of lower contact, and formed
Passage, during lift pipe string, the liquid stream on the present invention is not mentioned on ground.
Claims (2)
1. a kind of pressure testing device for preventing mud from being sprayed from oil pipe, including top connection（1）, spring adjust head（2）, valve bonnet（3）, adjust
Pressing spring（4）, valve ball（6）, sealing element（7）, valve seat（8）, level pressure pin（9）, lower contact（11）, it is characterized in that：Valve bonnet（3）On
It is provided with communication groove（5）, spring adjusting head（2）The external screw thread and valve bonnet of lower part（3）The internal thread connection on top, pressure spring（4）、
Valve ball（6）It is placed on valve bonnet（3）It is interior, valve seat（8）Top screw thread and valve bonnet（3）Lower thread connection, junction keep it is close
Envelope, valve ball（6）Diameter is more than valve seat（8）Aperture, valve ball（6）With valve seat（8）Valve port fitted seal, pressure spring（4）'s
Upper surface withstands on spring and adjusts head（2）Lower face on, pressure spring（4）Push down valve ball（6）, spring adjusting head（2）, valve bonnet
（3）, pressure spring（4）, valve ball（6）, valve seat（8）Top connection is placed in after being assembled integrally（1）Lower part in, valve bonnet（3）On
The communication groove（5）On outer wall and top connection（1）Inner wall between form circular passage（12）, make valve bonnet（3）Interior
Liquid stream can pass through the communication groove（5）Through the circular passage（12）It flows away, top connection（1）With valve seat（8）Between install
Sealing element（7）, sealing element（7）Seal top connection（1）With valve seat（8）Between gap, valve seat（8）By level pressure pin（9）Connection
In top connection（1）Lower part, level pressure pin（9）In sealing element（7）Under, lower contact（11）Top and top connection（1）'s
Lower thread connects.
2. a kind of pressure testing device for preventing mud from being sprayed from oil pipe according to claim 1, it is characterized in that：Valve seat（8）'s
Linked hole is arranged at lower part（10）, valve seat（8）Outer diameter be more than lower contact（11）The internal diameter of lower part, valve seat（8）Lower backwardness can connect by under
Head（11）The shoulder of lower part blocks, valve seat（8）It falls by lower contact（11）After the shoulder of lower part blocks, liquid stream can pass through described
Linked hole（10）It flows downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062889.4A CN108086932A (en) | 2018-01-23 | 2018-01-23 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062889.4A CN108086932A (en) | 2018-01-23 | 2018-01-23 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086932A true CN108086932A (en) | 2018-05-29 |
Family
ID=62182510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810062889.4A Pending CN108086932A (en) | 2018-01-23 | 2018-01-23 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443292A (en) * | 2019-09-02 | 2021-03-05 | 中国石油天然气股份有限公司 | Horizontal well subsection slurry replacing pipe column |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060175092A1 (en) * | 2005-02-10 | 2006-08-10 | Mashburn Benny D | Flow valve and method |
| US20110036591A1 (en) * | 2008-02-15 | 2011-02-17 | Pilot Drilling Control Limited | Flow stop valve |
| CN202132006U (en) * | 2011-07-06 | 2012-02-01 | 中国石油化工集团公司 | Bottom ball seat of pressure down pipe backwashing well |
| CN102465675A (en) * | 2010-11-16 | 2012-05-23 | 王志荣 | Sand wash valve |
| CN102650199A (en) * | 2011-02-23 | 2012-08-29 | 新疆华油油气工程有限公司 | Bidirectional pressure control circulating valve |
| CN204098903U (en) * | 2014-09-18 | 2015-01-14 | 中国石油化工股份有限公司 | A kind of down-hole string pressure testing, pressure relief tool |
| 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 |
| CN104533342A (en) * | 2015-01-20 | 2015-04-22 | 中国石油化工股份有限公司 | Ball base tool for horizontal well |
| CN204827257U (en) * | 2015-08-24 | 2015-12-02 | 胜利油田胜兴石油配件技术开发有限责任公司 | Prevent tubular column under gusher |
| CN205297501U (en) * | 2015-12-07 | 2016-06-08 | 中国石油天然气股份有限公司 | Dirty water injection ball seat is arranged to general anti -overflow of high pressure |
| CN105781508A (en) * | 2016-05-01 | 2016-07-20 | 中国石油化工股份有限公司 | Constant-pressure throttling device for small-diameter water injection well |
| CN207813531U (en) * | 2018-01-23 | 2018-09-04 | 东营百华石油技术开发有限公司 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
-
2018
- 2018-01-23 CN CN201810062889.4A patent/CN108086932A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060175092A1 (en) * | 2005-02-10 | 2006-08-10 | Mashburn Benny D | Flow valve and method |
| US20110036591A1 (en) * | 2008-02-15 | 2011-02-17 | Pilot Drilling Control Limited | Flow stop valve |
| CN102465675A (en) * | 2010-11-16 | 2012-05-23 | 王志荣 | Sand wash valve |
| CN102650199A (en) * | 2011-02-23 | 2012-08-29 | 新疆华油油气工程有限公司 | Bidirectional pressure control circulating valve |
| CN202132006U (en) * | 2011-07-06 | 2012-02-01 | 中国石油化工集团公司 | Bottom ball seat of pressure down pipe backwashing well |
| 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 |
| CN204098903U (en) * | 2014-09-18 | 2015-01-14 | 中国石油化工股份有限公司 | A kind of down-hole string pressure testing, pressure relief tool |
| CN104533342A (en) * | 2015-01-20 | 2015-04-22 | 中国石油化工股份有限公司 | Ball base tool for horizontal well |
| CN204827257U (en) * | 2015-08-24 | 2015-12-02 | 胜利油田胜兴石油配件技术开发有限责任公司 | Prevent tubular column under gusher |
| CN205297501U (en) * | 2015-12-07 | 2016-06-08 | 中国石油天然气股份有限公司 | Dirty water injection ball seat is arranged to general anti -overflow of high pressure |
| CN105781508A (en) * | 2016-05-01 | 2016-07-20 | 中国石油化工股份有限公司 | Constant-pressure throttling device for small-diameter water injection well |
| CN207813531U (en) * | 2018-01-23 | 2018-09-04 | 东营百华石油技术开发有限公司 | A kind of pressure testing device for preventing mud from being sprayed from oil pipe |
Non-Patent Citations (1)
| Title |
|---|
| 郭明安;王淑燕;朱俊生;王爱玲;卢海霞;: "双向定压阀的研制及应用", 油气田地面工程, no. 09, pages 97 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443292A (en) * | 2019-09-02 | 2021-03-05 | 中国石油天然气股份有限公司 | Horizontal well subsection slurry replacing pipe column |
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