CN105840151B - Perforation tubular column and perforation tubular column school depth and perforating methods - Google Patents
Perforation tubular column and perforation tubular column school depth and perforating methods Download PDFInfo
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- CN105840151B CN105840151B CN201510020662.XA CN201510020662A CN105840151B CN 105840151 B CN105840151 B CN 105840151B CN 201510020662 A CN201510020662 A CN 201510020662A CN 105840151 B CN105840151 B CN 105840151B
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Abstract
A kind of perforation tubular column of offer of the embodiment of the present invention and perforation tubular column school depth and perforating methods.Perforation tubular column of the present invention, including：Perforating gun and pressure drilling priming device and two school depth pipe nipples；The embodiment of the present invention is set by perforation tubular column and carries out school depth operation respectively there are two school depth pipe nipple, and primary school depth chance is increased, and to reduce the number that perforation tubular column removes, improves school depth and perforating job efficiency.
Description
Technical field
The present embodiments relate to perforating oil gas well technology more particularly to a kind of perforation tubular column and perforation tubular column school depth and penetrate
Hole method.
Background technology
Currently, perforation completion is a kind of most commonly used oil/gas well completion method of domestic application, wherein making in well workover perforations adding
When industry, tripping in perforation tubular column is needed to carry out related perforating job.
In the prior art, perforating job is mainly drilling rod (oil pipe) transmission perforation, using just suppressing igniting perforation in tubing string.
But using the prior art, tubing string inner coating impurity and iron filings iron rust etc. can be frequently occurred during perforating job
It is blocked at initiator and tubing string variable buckle undergauge, thus needs above to carry perforation tubular column, then reinsert, perforation could be completed
Tubing string school depth and perforating job cause repeatedly to remove perforation tubular column in this way, cause doing over again for perforation construction, increase operating cost,
Influence operating efficiency.
Invention content
A kind of perforation tubular column of offer of the embodiment of the present invention and perforation tubular column school depth and perforating methods, it is stifled to overcome perforation tubular column
Plug needs repeatedly to remove perforation tubular column, to improve the school depth and perforating job efficiency of perforation tubular column.
On the one hand the embodiment of the present invention provides a kind of perforation tubular column, including：Perforating gun and pressure drilling priming device, it is special
Sign is, further includes：Two school depth pipe nipples；Pressure drilling priming device is connected to the top of perforating gun；Two school depth pipe nipples connect
It is connected on the top of pressure drilling priming device, wherein connected by oil pipe between two school depth pipe nipples.
On the other hand the embodiment of the present invention provides a kind of perforation tubular column school depth and perforating methods, using depth correction instrument device in perforation
It is deep as a result, and obtaining the second school knot deeply in the second school depth pipe nipple of perforation tubular column that first school depth pipe nipple of tubing string obtains the first school
Fruit；It is deep as a result, determining the percentage regulation of perforation tubular column according to the first school depth result and the second school；According to percentage regulation by perforation pipe
Column is adjusted to the position of corresponding perforation, carries out suppressing perforation.
Perforation tubular column of the embodiment of the present invention and perforation tubular column school depth and perforating methods, set that there are two school is deep by perforation tubular column
Pipe nipple carries out school depth operation respectively, increases primary school depth chance and improves and penetrate to reduce the number that perforation tubular column removes
The school depth and perforating job efficiency of hole tubing string.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of perforation tubular column embodiment one provided by the invention；
Fig. 2 is the structural schematic diagram of perforation tubular column embodiment two provided by the invention；
Fig. 3 is the structural schematic diagram of perforation tubular column embodiment three provided by the invention；
Fig. 4 is the partial enlarged view of the A structures of perforation tubular column embodiment three provided by the invention；
Fig. 5 is the partial enlarged view of the B structure of perforation tubular column embodiment three provided by the invention；
Fig. 6 is the flow chart of the corresponding perforation tubular column school depth of perforation tubular column provided by the invention and perforating methods.
Reference sign：
10：Perforating gun；
20：Pressure drilling priming device；
30：First school depth pipe nipple；
40：Impacting type circulating valve；
41：Cylinder；
42：Sliding sleeve；
43：Striker；
44：Top connection；
45：Lower contact：
46：Snap ring；
47：Backing stop structure；
48：Annular space；
49：Fixing piece；
50：Oil pipe；
51：Sealing ring；
60：Second school depth pipe nipple；
101：First part；
102：Second part；
411：Circulation port；
412：First tube body；
413：Second tube body；
414：Step
421：Block disk；
422：Shear sleeve；
423：Counterbore；
424：Fixing device；
425：Annular convex platform；
426：Pressure transmission through-hole；
427：Blind hole；
428：Annular grooving；
429：Mounting groove.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of perforation tubular column embodiment one provided by the invention, as shown in Figure 1, the dress of the present embodiment
It sets and may include：Perforating gun 10 and pressure drilling priming device 20 further include two school depth pipe nipples.Pressure drilling priming device 20
It is connected to the top of perforating gun 10, two school depth pipe nipples are connected to the top of pressure drilling priming device 20, wherein two school depths
It is connected by oil pipe 50 between pipe nipple.
Perforation tubular column provided in an embodiment of the present invention carries out school depth operation respectively by two school depth pipe nipples, increases primary
School depth chance improves perforation tubular column school depth and the efficiency of perforating job to reduce the number that perforation tubular column removes.
Fig. 2 is the structural schematic diagram of perforation tubular column embodiment two provided by the invention, as shown in Fig. 2, above-mentioned perforation tubular column
Pressure drilling priming device 20 and two school depth pipe nipples between be equipped with impacting type circulating valve 40.Wherein, two school depth pipe nipple packets
The first school depth pipe nipple 30 and the second school depth pipe nipple 60 are included, specifically, can between the first school depth pipe nipple 30 and the second school depth pipe nipple 60
At a distance of 300m-500m, to be connected by oil pipe 50.
Further, impacting type circulating valve 40, including：Cylinder 41 and sliding sleeve 42；Cylinder 41 is equipped with circulation port 411, follows
The horizontal position of annular distance 411 is higher than the horizontal position for blocking disk 421；Sliding sleeve 42 is threaded through in cylinder 41, and 42 top of sliding sleeve is equipped with
Block disk 421.
Specifically, in practical applications, in oil/gas well, will be waited under perforation tubular column whole provided in an embodiment of the present invention
It states after arriving perforating oil gas well layer position under perforation tubular column, tripping in depth correction instrument device carries out the school depth operation of perforation tubular column, if depth correction instrument
Device cannot realize school depth operation by perforation tubular column, then on lift depth correction instrument device, carry out circulation well cleanup, pass through above-mentioned perforation pipe
The circulation port 411 opened up on 40 cylinder 41 of impacting type circulating valve in column carries out the cycle of fluid, thus by impacting type circulating valve 40
The tampers such as the impurity in the perforation tubular column of top are discharged with the fluid of cycle, complete the cleaning of the tamper in perforation tubular column,
Meanwhile 42 top of sliding sleeve of the impacting type circulating valve 40 is equipped with and blocks 421, can prevent impurity from entering under impacting type circulating valve 40
In the perforation tubular column of side, so that depth correction instrument device, which can pass through perforation tubular column, completes school depth and perforating job.
Perforation tubular column provided in an embodiment of the present invention increases primary school depth chance, together by the way that two school depth pipe nipples are arranged
When circulation port is also offered by being equipped with impacting type circulating valve in perforation tubular column, on cylinder, be equipped at the top of sliding sleeve and block disk, from
And realize the cycles such as the impurity in the perforation tubular column above impacting type circulating valve fluid discharge, while also avoid impurity into
Enter in the perforation tubular column below impacting type circulating valve so that depth correction instrument device can pass through complete perforation tubular column school it is deep and
Perforating job.
Further, above-mentioned impacting type circulating valve 40, including：Striker 43；42 outer wall of sliding sleeve is equipped with striker 43.Specifically
, Fig. 3 is the structural schematic diagram of perforation tubular column embodiment three provided by the invention, and Fig. 4 is that perforation tubular column provided by the invention is real
The partial enlarged view of the A structures of example three is applied, Fig. 5 is the partial enlargement of the B structure of perforation tubular column embodiment three provided by the invention
Figure, on the basis of embodiment two, as shown in Figure 3-Figure 5, the cylinder 41 of above-mentioned impacting type circulating valve 40 is by 412 He of the first tube body
Second tube body 413 forms, wherein the horizontal position of the first tube body 412 is higher than the horizontal position of the second tube body 413, and the first pipe
The internal diameter of body 412 is less than the internal diameter of second tube body 413；The interconnecting piece of first tube body 412 and the second tube body 413 forms step
414。
Specifically, at least provided with two groups of O-ring seals on the first tube body 412, every group of O-ring seal can be single O-shaped
Sealing ring can also be two or more O-ring seal combination, have a spacing between two groups of O-ring seals
From when being closed to be about to circulation port 411 on sliding sleeve 42, circulation port 411 is located between two groups of O-ring seals, with realization pair
The good closing of circulation port 411.
Specifically, the first tube body 412 should be concordant or slightly higher with the lower edge of circulation port 411 close to the upper end of circulation port 411
In the lower edge of circulation port 411, it can make in this way during circulation well cleanup, the impurity that liquid carries is arranged from circulation port 411
Go out, avoids stockpiling on blocking disk 421.
Further, 42 outer wall of sliding sleeve of impacting type circulating valve 40 is equipped with shear sleeve 422, and shear sleeve 422 is equipped with heavy
Hole 423, fixing device 424 are threaded through in counterbore 423 and shear sleeve 422 are fixed on 42 outer wall of sliding sleeve.
Wherein, which is located in the second tube body 412, and on be against on above-mentioned step 414.
Specifically, above-mentioned fixing device 424 can be shear pin, but herein not to be limited, shear pin is set to should
In counterbore 423, the outer surface that shear sleeve 422 can be protruded to avoid the end of shear pin rubs with inner barrel.
Alternatively it is also possible to which the excircle in above-mentioned shear sleeve 422 is equipped with groove, fixing device 424 is installed in groove
It is interior, the outer surface that the end of shear pin protrudes shear sleeve 422 can also be avoided to rub with inner barrel in this way.
It should be noted that in the original state of impacting type circulating valve 40, supported and above-mentioned step 414 on shear sleeve 422
On, to prevent 42 uplink of sliding sleeve, guild on sliding sleeve 42 is avoided to block circulation port 411, ensures that circulation port 411 is in the conduction state.
When tripping in depth correction instrument device, which is obstructed, needs liquid circulation, circulation well cleanup is carried out, self-loopa hole 411 is by the impurity band outlet pipe in tubing string
Column.
Further, 42 outer wall of sliding sleeve of impacting type circulating valve 40 is equipped with annular convex platform 425, and sliding sleeve 42 is worn into cylinder
After 41, annular convex platform 425 is located in the second tube body 413；
The horizontal position of annular convex platform 425 is less than the horizontal position of shear sleeve 422.
Specifically, sliding sleeve 42 is divided into first part 101 and second part 102 by above-mentioned annular convex platform 425 in the axial direction, the
The top of a part 101 and the first tube body 412 of cylinder 41 are slidably and sealingly connected with, the second pipe of annular convex platform 425 and cylinder 41
Body 413 is slidably and sealingly connected with.
Can specifically open up seal groove on the outer wall of sliding sleeve 42, and using multiple O-ring seals by the sliding sleeve 42 with
It is sealed between the cylinder 41.
Further, annular convex platform 425 is equipped with pressure transmission through-hole 426, and pressure transmission through-hole 426 is connected to 42 inside of sliding sleeve；
Striker 43 is inserted into pressure transmission through-hole 426, radially 42 internal stretch of sliding sleeve of striker 43, wherein striker 43, which is inserted into, to be passed
The part and pressure transmission through-hole 426 for pressing through-hole 426 are tightly connected, and striker 43 is inserted into the part of pressure transmission through-hole 426 equipped with blind hole
427；
The outer wall of striker 43 is equipped with annular grooving 428, and striker 43 is broken by force effect lower edge annular grooving 428.And
And the tangential force that design striker 43 fractures as needed, so that striker 43 can be struck off by the instrument of tripping in the application.
Wherein, blind hole 427 becomes through-hole after striker 43 is broken, and the pressure transmission through-hole 426 on sliding sleeve 2 is made to be connected.
Specifically, after perforation tubular column is unimpeded, the instrument of tripping in is smashed disk 421 is blocked, and continues tripping in by striker 43
It strikes off.
Wherein, the instrument of tripping in is specifically as follows depth correction instrument device, but is not limited thereto.
Since pressure transmission through-hole 426 is connected, the highly pressurised liquid in well by pressure transmission through-hole 426 enter sliding sleeve 42 and cylinder it
Between annular space 48 in, which is located at the top of annular convex platform 425.
After highly pressurised liquid in well enters above-mentioned annular space 48, it can apply to sliding sleeve 42 and upward pressure, in shear pin
42 uplink of sliding sleeve after cutting, circulation port 411 is closed, so that perforation tubular column carries out the operation of corresponding technique, to effectively solve
It in the prior art since tubing string blocking causes the instrument cannot to can smoothly enter into, and causes repeatedly to play lower tubular column, causes to do over again, increase
The problem of cost.
Further, impacting type circulating valve 40 further includes：Top connection 44 and lower contact 45；
Top connection 44 is fixedly connected with the top of cylinder 41, and lower contact 45 is fixedly connected with the bottom of cylinder 41；
Second tube body 413 of sliding sleeve 42 is extend into lower contact 45.
Specifically, top connection 44 can be that integral structure or top connection 44 pass through screw thread with cylinder 41 with cylinder 41
Connection, but be not limited thereto.When top connection 44 is threadedly coupled with cylinder 41, the end of the top connection 44 inside cylinder 41 is stretched into
Portion can prevent sliding sleeve 42 from continuing uplink behind 42 closed circulation hole 411 of sliding sleeve.Meanwhile lower contact 45 can also pass through clamp screw
Nail 10 is fixedly connected with 41 bottom of cylinder.
Further, impacting type circulating valve 40 further includes：Snap ring 46 and backing stop structure 47, above-mentioned second tube body 413
The outer wall extending into lower contact 45 is equipped with backing stop structure 47, which is caught in backing stop structure 47.At this point,
Backing stop structure 47 can be the annular groove being arranged on 42 outer wall of above-mentioned sliding sleeve.
Specifically, snap ring 46 is located at the second part 102 of sliding sleeve 42, the specific location of backing stop structure 47 can be close
Sliding sleeve 42 stretches into the bottom in lower contact 45.
Packed O-ring seal is set between sliding sleeve 42 and lower contact 45, the O-ring seal is relative to snap ring 46
Closer to the bottom of 42 second part 102 of sliding sleeve.After sliding sleeve 42 moves upwards, snap ring 46 acts on the upper of lower contact 45
When end, which still will be sealed between sliding sleeve 42 and lower contact 45.
Specifically, after being about to the closing of circulation port 411 on sliding sleeve 42, snap ring 46 connects as sliding sleeve moves up to down
More than first 45 upper end, snap ring 46 is flicked and is stuck on the upper end of lower contact 45 at this time, and sliding sleeve 42 is prevented to transport downwards
It is dynamic, realize the closure to circulation port 411.
Optionally, snap ring 46 can also be set at the annular convex platform 425 of sliding sleeve 42, and backing stop structure 47 is to be opened in
The annular groove of corresponding position on 413 inner wall of the second tube body of cylinder 41.After being about to the closing of circulation port 411 on sliding sleeve 42, bullet
When at the above-mentioned backing stop structure 47 for 413 inner wall of the second tube body that property snap ring 46 moves up to cylinder 41, snap ring 46 flicks
And it is caught in backing stop structure 47, it prevents sliding sleeve from sliding in the axial direction, realizes the closure to circulation port 103.
Optionally, snap ring 46 can also be set to the first part 101 of sliding sleeve 42, and backing stop structure 47 is to be opened in cylinder
The annular groove of corresponding position on 41 first tube body of body, 412 inner wall.Equally, after being about to the closing of circulation port 411 on sliding sleeve 42, bullet
Property snap ring 46 moves up at the backing stop structure 47 on 41 first tube body of cylinder, 412 inner wall, and snap ring 46 is flicked and is caught in
Backing stop structure 47 prevents sliding sleeve 42 from sliding in the axial direction, realizes the closure to circulation port 411.
Further, the top of sliding sleeve 42 is equipped with mounting groove 429, and will block disk solid 421 by fixing piece 49 is set to installation
In slot 429.
Specifically, the end of 102 side of first part of sliding sleeve 42 has mounting groove 429.But it is not limited thereto, passes through
Fixing piece 49 is fixedly arranged on disk 421 is blocked in mounting groove 429, in order to block the installation and replacement of disk 421, certainly, can also be adopted
The end of disk 421 fixation and sliding sleeve 2 will be blocked with other forms appropriate.
Wherein, fixing nut can be used in above-mentioned fixing piece 49, and the inner thread of fixing nut and the countersink region of sliding sleeve 42 connects
It connects, to block, disk 421 will be fixed in mounting groove 429 or fixing piece 49 selects fixing pin, multiple fixing pins and cunning
42 connection of set, is fixed on to block disk 421 in mounting groove 429.Can also be improved it is as follows, block disk 421 above
Baffle ring is placed in counterbore, is fixed baffle ring and sliding sleeve 42 with fixing pin.
Flexible fastening piece may be used in above-mentioned fixing piece 49, and card slot is provided on the inner wall of mounting groove 429, and flexible fastening piece is set
In in the mounting groove 429, it is fixed in mounting groove 429 to which disk 421 will be blocked.It is good to sliding sleeve 42 in order to block the realization of disk 421
Good closure is provided with sealing ring 51 blocking between disk 421 and sliding sleeve 42.
Further, the material of above-mentioned closure disk 421 can be glass or ceramics.
Specifically, above-mentioned closure disk 421 can design its external force being crashed to pieces as needed, under passing through in the application
The instrument entered can will block disk 421 and smash.It is crashed to pieces i.e. under certain external force collision as long as the material for blocking disk 421 meets
It can.Closure disk 421 in the present embodiment is preferably that glass or ceramics are made.
Fig. 6 is the flow chart of the corresponding perforation school depth of perforation tubular column provided by the invention and perforating methods, as shown in fig. 6,
This method includes：
Step 101, the first school depth pipe nipple using depth correction instrument in perforation tubular column obtain the first school deeply as a result, and in perforation pipe
The second school depth result is obtained in second school depth pipe nipple of column；
It is step 102, deep according to the first school depth result and the second school as a result, determining the percentage regulation of perforation tubular column；
Step 103 adjusts perforation tubular column to the position of corresponding perforation according to percentage regulation, carries out suppressing perforation.
In the present embodiment, school depth operation is carried out respectively by two school depth pipe nipples, primary school depth chance is increased, to subtract
Lack the number that perforation tubular column removes, improves school depth and perforating job efficiency.
Further, the first school depth pipe nipple using depth correction instrument device in perforation tubular column obtains the first school deeply as a result, and penetrating
It is deep as a result, including that the second school is obtained in second school depth pipe nipple of hole tubing string：
When perforation tubular column is gone into the well to the first predeterminated position, the first school depth pipe nipple using depth correction instrument in perforation tubular column obtains
Initial first school is deep as a result, and obtaining initial second school depth result in the second school depth pipe nipple of perforation tubular column；
When perforation tubular column is gone into the well to perforation layer position, the is obtained in the first school depth pipe nipple of perforation tubular column using depth correction instrument
One school is deep as a result, and obtaining the second school depth result in the second school depth pipe nipple of perforation tubular column.
Further, using depth correction instrument the first school depth pipe nipple of perforation tubular column obtain initial first school it is deep as a result, and
After obtaining initial second school depth result in second school depth pipe nipple of perforation tubular column, further include：
Perforation tubular column under the first predeterminated position to perforation layer position during, the liquid filling into perforation tubular column.
During specific implementation, usual above-mentioned first predeterminated position is by 1/2 position of perforation tubular column tripping in overall length, perforation
Tubing string is during being lowered into above-mentioned first predeterminated position, not liquid filling in perforation tubular column, instantly the 1/2 of entrance aperture tubing string overall length
When, tripping in depth correction instrument device carries out the school depth operation of first time perforation tubular column, and initial first school for measuring the first school depth pipe nipple respectively is deep
As a result with the initial second school depth result of the second school depth pipe nipple.Then, perforation tubular column continues during perforation layer tripping in, then delays
Slowly into perforation tubular column, liquid filling, in oil/gas well, will arrive oil gas to filling under remaining perforation tubular column whole under tubing string to be perforated
Behind well perforation layer position, tripping in depth correction instrument device carries out second of perforation tubular column school depth operation, measures the first school depth pipe nipple again respectively
The first school depth result and the second school depth pipe nipple the second school depth result.
Perforation Guan Jiaoshen and perforating methods provided in this embodiment are by perforation tubular column tripping in half, not to perforation pipe
Liquid filling in column, and carry out primary school depth operation；The other half perforation tubular column of tripping in again, and liquid filling carry out school depth again later.It is this to do
Method can avoid perforation tubular column inner wall, be immersed in well killing fluid for a long time, caused perforation tubular column because of pipe by Optimization Work step
Column wall impurity, which falls off, blocks tubing string, reduces blockage problem in perforation tubular column.
Further, above-mentioned the first school depth pipe nipple using depth correction instrument device in perforation tubular column obtains the first school deeply as a result, simultaneously
After obtaining the second school depth result in the second school depth pipe nipple of perforation tubular column, further include：
It is stretched into perforation tubular column, smash the closure disk of impacting type circulating valve in perforation tubular column successively and hit using depth correction instrument device
Pin.
Specifically, the perforation tubular column school depth and perforating methods of the embodiment of the present invention can also pass through the pressure in perforation tubular column
Impacting type circulating valve is equipped between tapping explosion initiating device and two school depth pipe nipples, impacting type circulating valve is followed by being opened up on cylinder
Annular distance realizes the cycle of fluid, so as to which the impurity etc. in the tubing string above circulating valve to be discharged with the fluid of cycle, avoids
Impurity blocks tubing string.So as to the smooth tripping in of depth correction instrument device and complete depth verification.And the cunning of impacting type circulating valve inner barrel
The closure disk of the upper end setting of set can enter to avoid impurity in the tubing string below circulating valve, avoid the perforation tubular column to lower section
(especially at priming device) results in blockage.It after tubing string is unimpeded, is smashed by the depth correction instrument device of tripping in by disk is blocked, and by striker
It strikes off, the highly pressurised liquid in such well enters the annular convex platform of sliding sleeve and the end of lower contact by the radial pressure transmission hole at striker
Between portion, to upwarding pressure to sliding sleeve, the sliding sleeve uplink after shear pin cutting closes circulation port, so as to tubing string into
The operation of the corresponding technique of row.
Further, when above-mentioned use perforation tubular column carries out school depth and perforating job, if depth correction instrument device stretches into perforation tubular column
During be obstructed, then carry out circulation well cleanup, smashed in perforation tubular column successively until depth correction instrument device stretches into the perforation tubular column
The closure disk and striker of impacting type circulating valve.
The perforation tubular column of the present invention is efficiently solved in the prior art by being equipped with impacting type circulating valve since tubing string blocks
The problem of causing instrument that cannot can smoothly enter into, and cause repeatedly to play lower tubular column, cause to do over again, increasing cost.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of perforation tubular column, including：Perforating gun and pressure drilling priming device, which is characterized in that further include：Two schools are deeply short
Section；
The pressure drilling priming device is connected to the top of the perforating gun；
Described two school depth pipe nipples are connected to the top of the pressure drilling priming device, wherein described two school depth pipe nipples it
Between connected by oil pipe；
Impacting type circulating valve is equipped between the pressure drilling priming device and described two school depth pipe nipples；
The impacting type circulating valve, including：Cylinder and sliding sleeve；
The cylinder is equipped with circulation port, and the horizontal position of the circulation port is higher than the horizontal position for blocking disk；
The sliding sleeve is threaded through in the cylinder, and the closure disk is equipped at the top of the sliding sleeve.
2. perforation tubular column according to claim 1, which is characterized in that the impacting type circulating valve, including：Striker；
The sliding sleeve outer wall is equipped with the striker.
3. a kind of school depth and perforating methods, which is characterized in that including：
The first school depth pipe nipple using depth correction instrument in perforation tubular column obtains the first school deeply as a result, and the second of the perforation tubular column
The second school depth result is obtained in the depth pipe nipple of school；
It is deep as a result, determining the percentage regulation of the perforation tubular column according to the first school depth result and second school；
The perforation tubular column is adjusted to the position of corresponding perforation according to the percentage regulation, carries out suppressing perforation；
Impacting type circulating valve is equipped between the pressure drilling priming device of the perforation tubular column and two school depth pipe nipples；
The impacting type circulating valve, including：Cylinder and sliding sleeve；
The cylinder is equipped with circulation port, and the horizontal position of the circulation port is higher than the horizontal position for blocking disk；
The sliding sleeve is threaded through in the cylinder, and the closure disk is equipped at the top of the sliding sleeve；
If the depth correction instrument is obstructed during stretching into the perforation tubular column, circulation well cleanup is carried out, until the depth correction instrument is stretched
Enter to smash the closure disk and striker of impacting type circulating valve in the perforation tubular column successively in the perforation tubular column.
4. according to the method described in claim 3, it is characterized in that, described deeply short in the first school of perforation tubular column using depth correction instrument
It is deep as a result, and obtaining the second school in the second school depth pipe nipple of the perforation tubular column deeply as a result, including that section obtains the first school：
When the perforation tubular column is gone into the well to the first predeterminated position, using the depth correction instrument perforation tubular column the first school depth pipe nipple
It is deep as a result, and obtaining initial second school depth result in the second school depth pipe nipple of the perforation tubular column to obtain initial first school；
When the perforation tubular column is gone into the well to perforation layer position, the first school depth pipe nipple using the depth correction instrument in perforation tubular column obtains
Take first school deep as a result, and obtaining the second school depth result in the second school depth pipe nipple of the perforation tubular column.
5. according to the method described in claim 4, it is characterized in that, it is described using the depth correction instrument in the first school of perforation tubular column
It is deep as a result, and obtaining initial second school knot deeply in the second school depth pipe nipple of the perforation tubular column that deep pipe nipple obtains initial first school
After fruit, further include：
The perforation tubular column under first predeterminated position to the perforation layer position during, to the perforation tubular column
Interior liquid filling.
6. method according to claim 4 or 5, which is characterized in that it is described using the depth correction instrument the of perforation tubular column
It is deep as a result, and obtaining second school in the second school depth pipe nipple of the perforation tubular column that one school depth pipe nipple obtains first school
After deep result, further include：
It is stretched into the perforation tubular column using the depth correction instrument, smashes the closure of impacting type circulating valve in the perforation tubular column successively
Disk and striker.
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| CN201510020662.XA CN105840151B (en) | 2015-01-15 | 2015-01-15 | Perforation tubular column and perforation tubular column school depth and perforating methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020662.XA CN105840151B (en) | 2015-01-15 | 2015-01-15 | Perforation tubular column and perforation tubular column school depth and perforating methods |
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| CN105840151B true CN105840151B (en) | 2018-10-16 |
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| CN106285578A (en) * | 2016-08-31 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司 | Perforation automatic feed liquor tubing string and operational method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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