CN201092852Y - Throwing-dragging type unaflow valve blocking machine - Google Patents
Throwing-dragging type unaflow valve blocking machine Download PDFInfo
- Publication number
- CN201092852Y CN201092852Y CNU2007201469498U CN200720146949U CN201092852Y CN 201092852 Y CN201092852 Y CN 201092852Y CN U2007201469498 U CNU2007201469498 U CN U2007201469498U CN 200720146949 U CN200720146949 U CN 200720146949U CN 201092852 Y CN201092852 Y CN 201092852Y
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- blanking plug
- ball
- seat
- dropping
- taking
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Abstract
The utility model relates to an oil field operation device, in particular relates to an oil field underground operation testing device, improved aspects of a can-be-salvaged type inverted valve blanking plug are as following: a salvage neck is arranged in a working barrel, an adapter sleeve is rotatablely connected with the salvage neck, a tee is rotatablely connected with the adapter sleeve, an variable button is rotatablely connected with the tee, wherein a slip is arranged on the salvage neck, springs and steel balls are arranged in the adapter sleeve, the steel balls compactly withstand to the tee. The oil field operation device is characterized in that the blanking plug can be thrown down from wellhead without using any tool, which is provided a good sealing effect, when formation pressure and temperature data are needed, the blanking plug can be salvaged by steel wire operating, when acidification is needed, the blanking plug can be salvaged and then being acidified, since well killing fluid must be poured into a well during down-holing a pipe string, which can increase pollution to stratum, the acidification can be proceeded without down-holing a pipe string, thereby, the stratum pollution is reduced, and the blanking plug has the advantages of economy operation, convenience and practice.
Description
Technical field
The utility model relates to a kind of oil field operation device, especially relates to a kind of oilfield well testing apparatus for work.
Background technology
At present, in the test jobs process in oil field, when operations such as every and discharge opeing, acidifying, pressure break are carried out simultaneously, mainly adopt stuff to reach unidirectional purpose of damming.But it can not be salvaged, if will take out, must carry out the lift pipe string operation, will inevitably cause workload and operating cost to increase, and makes the entire job activities very loaded down with trivial details.The defective of its technology make that the working string effect is single, and workload is bigger, has significantly influenced the ageing of operation.
The utility model content
The purpose of this utility model just provides a kind of novel dropping in and taking off type ball-and-seat blanking plug, has the advantages that to obtain pressure, temperature data at any time.
For achieving the above object, the utility model adopts following technical scheme: this dropping in and taking off type ball-and-seat blanking plug, and its improvements are: the connecting cylinder 4 that is provided with fishing neck 2 in the seating nipple 1, spins with fishing neck 2, the ball seat 7 that spins with connecting cylinder 4, the change that spins with ball seat 7 buckle 9; Described fishing neck 2 is provided with slips 3; Be provided with spring 5, steel ball 6 in the described connecting cylinder 4; Described ball seat 7 holds out against with steel ball 6.
Further improvement in the technical proposal is: described seating nipple 1 internal diameter cross section is stepped.
Further improvement in the technical proposal is: the axial hole of described fishing neck 2 is a through hole.
Further improvement in the technical proposal is: described slips 3 is two, and is staggered relatively.
Further improvement in the technical proposal is: the axial hole of described connecting cylinder 4 is a through hole.
Further improvement in the technical proposal is: the axial of described ball seat 7 is through hole, and the aperture is less than the diameter of steel ball 6.
Further improvement in the technical proposal is: the axial hole of described change button 9 is through hole.
The utility model dropping in and taking off type ball-and-seat blanking plug has following characteristics: 1. can need not any instrument be cast by blanking plug from well head, and sealing effectiveness is fabulous.2. can realize downhole closing.3. for going out the hydraulic pump core, backwash provides necessary condition.4. when wanting to obtain strata pressure, temperature data, can by steel wire operation it be salvaged at any time.5. when thinking acidifying, blanking plug can be salvaged, carry out acidifying then.During 6. owing to acidifying, lift pipe string does not drag for up blanking plug, has reduced the activity duration.7. because lift pipe string must pour into well killing fluid, will certainly increase formation contaminant like this.Lift pipe string not during acidifying has so just reduced formation contaminant.8. adopt this blanking plug operation economy, convenience, practical.
Description of drawings
Fig. 1 is the main sectional view of the utility model dropping in and taking off type ball-and-seat blanking plug.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
See also shown in Figure 1, of the present utility model being constructed as follows among the figure: seating nipple 1, be used to place each parts of blanking plug, seating nipple 1 is realized downhole closing jointly with each parts, plays the effect of ball-and-seat.Because the perforation in present most of oil field all is to adopt oil tube transmission perforation, the perforation tubing string time, connect blanking plug seating nipple 1 between the oil pipe on perforating gun instantly, with the perforating gun G.I.H, after having descended, adjusted tubing string after, just can the caber perforation.Because the external diameter of perforation rod so the perforation rod can pass through blanking plug seating nipple 1 very smoothly, does not influence perforation much smaller than the seating nipple 1 of blanking plug.The internal diameter cross section of seating nipple 1 is stepped, and the connecting cylinder 4 that is provided with fishing neck 2 in the seating nipple 1, spins with fishing neck 2, the ball seat 7 that spins with connecting cylinder 4, the change that spins with ball seat 7 buckle 9.The axial hole of fishing neck 2 is a through hole, and fishing neck 2 is provided with slips 3.Slips 3 is two, and is staggered relatively, and after blanking plug was gone into the position, these two slips just were stuck within the seating nipple 1, can prevent that like this strata pressure from ejecting seating nipple 1 with each parts of blanking plug.The axial hole of connecting cylinder 4 is a through hole, is provided with spring 5, steel ball 6 in the connecting cylinder 4, has the effect of ball-type ball-and-seat, promptly only allows liquid or gas up to flow from the shaft bottom, plays unidirectional effect.Ball seat 7 be through hole axially, and the aperture is less than the diameter of steel ball 6, ball seat 7 and steel ball 6 hold out against.The part external surface of ball seat 7 and the part inner surface of seating nipple 1 are adjacent to, and by sealing ring 8 sealings.The lower end that becomes button 9 can connect memory electronic pressure gauge, storage strata pressure, Temperature Datum.
Operating principle of the present utility model is: this blanking plug can be suppressed by ground and realize downhole closing.For the new well of a bite, intact instantly tubing string when having adjusted tubing string preparation perforation, is ready to blanking plug.After being ready to, the caber perforation after hearing that rifle rings, drop into blanking plug timely, prevent to wait on the strata pressure after, inconvenience input blanking plug.If after coming on the strata pressure, just need the dress lubricator to throw blanking plug, this has just brought great inconvenience to work.So after preferably waiting rifle to ring, throw blanking plug at once.Afterwards, suppress by ground and realize downhole closing.
After blanking plug was gone into the position, slips 3 just was fixed on blanking plug in the blanking plug seating nipple 1.Because oil gas can come up from blanking plug bottom stream.After a while, do not have the pressure demonstration, prove that the stratum does not have the blowing ability if observe the well head production tree, at this moment can downforce instrumentation build-up of fluid, hydraulic pump discharge opeing then, blanking plug do not influence the hydraulic pump discharge opeing, and blanking plug also provides necessary condition for backwash goes out the hydraulic pump core.After having arranged liquid, need measuring pressure to recover to obtain pressure, the temperature data on stratum.Can suppress steel ball 6 diebacks with blanking plug this moment by ground, fastens production tree.Be that oil pipe builds the pressure steel ball 6 diebacks of blanking plug.After making the pressure on blanking plug top be not less than bottom pressure to recover maximum pressure.So just realized downhole closing, and the pressure gauge of blanking plug bottom is writing down the data in the pressure recovery process all the time.After pressure recovers to stablize, obtain formation pressure data if desired, at this time do not need lift pipe string, can with fishing tool blanking plug be dragged for up by steel wire operation.
During salvaging, after fishing tool was lowered to, after the striker of fishing tool inserted blanking plug, two slips 3 of blanking plug just can be regained fully, simultaneously fishing tool grab the fishing neck 2 of also having caught blanking plug, at this moment blanking plug just can trip out blanking plug smoothly by the pulling force of steel wire.After tripping out well head, pressure data in the playback pressure gauge, carry out on-site interpretation, carry out further work according to explanation results then, at this moment acidizing treatment is pulled out owing to blanking plug if desired, and whole tubing string is communicated with, promptly can tell stratum injection chemical agent and realize de-plugging, increase in-place permeability etc. from well head.After acidifying is intact, if also need after the acidifying of geodetic layer effect how, can continue to have manometric blanking plug from the well head input, continue to get pressure, the temperature data on stratum.As for blanking plug seating nipple 1, when having waited the perforation tubing string, trip out well head after, just be recoverable to, can reuse.
Claims (7)
1. dropping in and taking off type ball-and-seat blanking plug is characterized in that: the connecting cylinder that is provided with fishing neck in the seating nipple, spins with fishing neck, the ball seat that spins with connecting cylinder, the change that spins with ball seat are buckled; Described fishing neck is provided with slips; Be provided with spring, steel ball in the described connecting cylinder; Described ball seat and steel ball hold out against.
2. dropping in and taking off type ball-and-seat blanking plug as claimed in claim 1 is characterized in that: described seating nipple internal diameter cross section is stepped.
3. dropping in and taking off type ball-and-seat blanking plug as claimed in claim 1 is characterized in that: the axial hole of described fishing neck is a through hole.
4. dropping in and taking off type ball-and-seat blanking plug as claimed in claim 1, it is characterized in that: described slips is two, and is staggered relatively.
5. dropping in and taking off type ball-and-seat blanking plug as claimed in claim 1 is characterized in that: the axial hole of described connecting cylinder is a through hole.
6. dropping in and taking off type ball-and-seat blanking plug as claimed in claim 1 is characterized in that: the axial of described ball seat is through hole, and the aperture is less than the diameter of steel ball.
7. dropping in and taking off type ball-and-seat blanking plug as claimed in claim 1, it is characterized in that: the axial hole of described change button is through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201469498U CN201092852Y (en) | 2006-04-20 | 2007-04-18 | Throwing-dragging type unaflow valve blocking machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620112943.4 | 2006-04-20 | ||
| CN200620112943 | 2006-04-20 | ||
| CNU2007201469498U CN201092852Y (en) | 2006-04-20 | 2007-04-18 | Throwing-dragging type unaflow valve blocking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092852Y true CN201092852Y (en) | 2008-07-30 |
Family
ID=39900817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201469498U Expired - Lifetime CN201092852Y (en) | 2006-04-20 | 2007-04-18 | Throwing-dragging type unaflow valve blocking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092852Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498205B (en) * | 2009-02-25 | 2011-12-14 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well washing valve blocking apparatus |
-
2007
- 2007-04-18 CN CNU2007201469498U patent/CN201092852Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498205B (en) * | 2009-02-25 | 2011-12-14 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well washing valve blocking apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |