CN102409999B - Design method for forcible unlocking tool of downhole safety valve - Google Patents
Design method for forcible unlocking tool of downhole safety valve Download PDFInfo
- Publication number
- CN102409999B CN102409999B CN201110397746.7A CN201110397746A CN102409999B CN 102409999 B CN102409999 B CN 102409999B CN 201110397746 A CN201110397746 A CN 201110397746A CN 102409999 B CN102409999 B CN 102409999B
- Authority
- CN
- China
- Prior art keywords
- safety valve
- tool
- unlocking tool
- seating portion
- downhole safety
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Earth Drilling (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to the field of oil and gas filed well completion steel wire operation, in particular to a design method for a forcible unlocking tool of a downhole safety valve. The forcible unlocking tool is characterized by comprising a locating part and a main body which are integrated, the main body is provided with water holes, the main body is of a hollow structure, the locating part is a 11/16' UN10 joint with a salvage path, and the quantity of the water holes are four and are correspondingly arranged at the lower and the upper ends of the main body respectively. The forcible unlocking tool of the downhole safety valve has the advantages of light weight, convenience for performing steel wire jarring operation manually, success in forcibly unlocking the safety valve, high safety and relatively small operation risk.
Description
Technical field
The present invention relates to oil gas field completion steel wire operation field, particularly a kind of method for designing of forcible unlocking tool of downhole safety valve.
Background technology
In oil gas field completion steel wire operation field, the tool that goes into operation by force of storm valve is the special tool that goes into operation by force of Halliburton.See Fig. 1, this instrument is formed by connecting by upper, middle, and lower part, and overall length is 86.2 ", upper tool part is for being located short circuit, and external diameter is from 2.85 " becoming 2.75 "; The middle part of instrument and the external diameter of bottom are 2.75 and " can pass through storm valve smoothly.But design does not salvage footpath, adopting 1 1/16 " UN10 joint connects; this instrument is that round steel is made; external diameter is comparatively large, and weigh 200Kg, enters in well operations process; because instrument itself does not salvage footpath; opening by force in safety valve operation because jarring frequently causes threading off, driving by force special tool and dropping down onto on safety valve, cannot salvage at all; And due to this instrument be that solid design, weight are large, after steel wire operation drives safety valve by force, the upper and lower equilibrium establishment of tool that goes into operation by force is more difficult.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method for designing of forcible unlocking tool of downhole safety valve, to overcome the defect existed in prior art.
Technical scheme of the present invention is: a kind of method for designing of forcible unlocking tool of downhole safety valve, is characterized in that: comprise the seating portion and body that are structure as a whole, body is provided with hydrophthalmia hole, and wherein, body is hollow structure.
Described seating portion is be provided with 1 1/16 " the UN10 joints that footpath salvaged by band.
Described hydrophthalmia hole is 4, respectively the corresponding two ends being up and down arranged at body.
Described seating portion external diameter is 2.85 ", this body diameter is 2.75 "; Salvaging footpath is 2.313 "; Described seating portion and body overall length are 86.2 "; Described hydrophthalmia hole is the positive round circular hole of diameter 8 mm.
Technique effect of the present invention is:
1, integrated tubular design, thus the instrument that avoids falls on well safety valve, the situation about cannot salvage caused;
2, be with hydrophthalmia structure, be easy to balance the pressure reduction up and down of tool of going into operation by force, be beneficial to the upper and lower equilibrium establishment of tool that goes into operation by force;
3, lighter in weight, weight is only 20Kg;
4, the known steel wire jarring operation carried out in pit shaft is convenient to.The forcible unlocking tool of downhole safety valve that the present invention relates to, due to lightweight, therefore be convenient to manpower and carry out steel wire jarring operation, and success drives safety valve by force;
5, safety is high, operating risk is less.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the present invention will be further described:
Fig. 1 is prior art structural representation;
Fig. 2 is structural representation of the present invention.
Reference numeral is:
1. seating portion, 2. body, 3. hydrophthalmia hole, 4. salvaging footpath.
Detailed description of the invention
The present invention relates to the method for designing of a kind of forcible unlocking tool of downhole safety valve in oil gas field completion steel wire operation field.
A method for designing for forcible unlocking tool of downhole safety valve, is characterized in that: comprise the seating portion 1 and body 2 that are structure as a whole, body 2 is provided with hydrophthalmia hole 3, and wherein, body 2 is hollow structure.
Embodiment 1: see Fig. 2, the concrete structure of a kind of forcible unlocking tool of downhole safety valve that the present invention relates to is:
The hydrophthalmia hole 3 comprising seating portion 1, body 2 and be arranged on body 2, wherein, body 2 is hollow structure.Be convenient to steel wire jarring and manpower jarring operation, postpone the loss that jarring operation causes steel wire.Because body 2 is hollow structure, make lightweight, as occurred, screw thread comes off, and conveniently carries out the salvage of lower step.The function in hydrophthalmia hole 3 be once instrument be seated in safety valve can the pressure reduction of well-sinking on balance safety-valve.
Embodiment 2: on the basis of above-described embodiment, in the present invention, the concrete structure of seating portion 1 can be and is provided with the screw thread that 1 1/16 " the UN10 joints, namely external diameter is 1 1/16 " in footpath 4 salvaged by band, per inch 10 tooth.Once fall, well can be picked up with conventional slips fishing tool.
In the present invention, hydrophthalmia hole 3 can be 4, respectively the corresponding two ends being up and down arranged at body 2.To balance the pressure reduction up and down of the tool that goes into operation by force better.
In the present invention, the concrete specification of each several part can be: seating portion 1 external diameter is 2.85 ", body 2 external diameter is 2.75 ", salvaging footpath 4 is 2.313 "; Seating portion 1 and body 2 overall length are 86.2 "; Hydrophthalmia hole 3 is the positive round circular hole of diameter 8 mm.
Prior art and the present invention Contrast on effect table in construction pressure break
| sequence number | prior art | the present invention |
| 1 | instrument is that round steel is made, and external diameter is comparatively large, and weigh 200Kg. | weight is 20Kg. |
| 2 | instrument is made up of three solid pipe nipples, and tie point easily occurs to loosen or come off, and will be difficult to salvage. | integrated tubular designs. |
| 3 | instrument is solid design, and after steel wire operation drives safety valve by force, the upper and lower equilibrium establishment of safety valve is more difficult. | be easy to balance with hydrophthalmia structure the pressure reduction up and down of tool of going into operation by force. |
It should be noted that the parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (1)
1. a method for designing for forcible unlocking tool of downhole safety valve, is characterized in that: comprise the seating portion (1) and body (2) that are structure as a whole, body (2) is provided with hydrophthalmia hole (3), wherein, body (2) is hollow structure; Described seating portion (1) salvages the screw thread of 1 1/16 " the UN10 joints, external diameter is 1 1/16 " in footpath (4) for being provided with band, per inch 10 tooth; Described hydrophthalmia hole (3) is 4, and correspondence is arranged at the two ends up and down of body (2) respectively; Described seating portion (1) external diameter is 2.85 ", body (2) external diameter is 2.75 "; Salvaging footpath (4) is 2.313 "; Described seating portion (1) and body (2) overall length are 86.2 "; The positive round circular hole that described hydrophthalmia hole (3) is diameter 8 mm, the weight of this instrument is 20Kg; Structure wherein with hydrophthalmia, is easy to balance the pressure reduction up and down of tool of going into operation by force, is beneficial to the upper and lower equilibrium establishment of tool that goes into operation by force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110397746.7A CN102409999B (en) | 2011-12-05 | 2011-12-05 | Design method for forcible unlocking tool of downhole safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110397746.7A CN102409999B (en) | 2011-12-05 | 2011-12-05 | Design method for forcible unlocking tool of downhole safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102409999A CN102409999A (en) | 2012-04-11 |
| CN102409999B true CN102409999B (en) | 2015-02-25 |
Family
ID=45912301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110397746.7A Expired - Fee Related CN102409999B (en) | 2011-12-05 | 2011-12-05 | Design method for forcible unlocking tool of downhole safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102409999B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693742A (en) * | 2005-06-09 | 2005-11-09 | 林必贵 | Reversing water outlet valve |
| CN201129165Y (en) * | 2007-10-19 | 2008-10-08 | 中国石油化工股份有限公司 | Well cementing cement head balance pipe apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090481A (en) * | 1991-02-11 | 1992-02-25 | Otis Engineering Corporation | Fluid flow control apparatus, shifting tool and method for oil and gas wells |
| JP2002038864A (en) * | 2000-07-26 | 2002-02-06 | Chuko Sangyo Kk | Boring rod |
| US6523614B2 (en) * | 2001-04-19 | 2003-02-25 | Halliburton Energy Services, Inc. | Subsurface safety valve lock out and communication tool and method for use of the same |
| CA2636887C (en) * | 2003-10-27 | 2012-03-13 | Baker Hughes Incorporated | Tubing retrievable safety valve and method |
-
2011
- 2011-12-05 CN CN201110397746.7A patent/CN102409999B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693742A (en) * | 2005-06-09 | 2005-11-09 | 林必贵 | Reversing water outlet valve |
| CN201129165Y (en) * | 2007-10-19 | 2008-10-08 | 中国石油化工股份有限公司 | Well cementing cement head balance pipe apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102409999A (en) | 2012-04-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20211205 |