CN2916095Y - Drill stem for horizontal well workover technology - Google Patents
Drill stem for horizontal well workover technology Download PDFInfo
- Publication number
- CN2916095Y CN2916095Y CN 200620013100 CN200620013100U CN2916095Y CN 2916095 Y CN2916095 Y CN 2916095Y CN 200620013100 CN200620013100 CN 200620013100 CN 200620013100 U CN200620013100 U CN 200620013100U CN 2916095 Y CN2916095 Y CN 2916095Y
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- CN
- China
- Prior art keywords
- horizontal well
- power tool
- drill string
- adopted
- overhaul pipeline
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Abstract
The utility model relates to a oil-water well workover technology in petroleum industry, in particular to a drill stem for horizontal well workover technology, is characterized in that the drill stem in the lower horizontal well section are connected with ten to twenty assemblies of horizontal well centralizers, and the working tool is connected to the lowest part of the drill stem for horizontal well workover technology, the upper and lower ends of the working tool being provided with chamfers and when necessary, guiding heads. The technology has the effect that the horizontal well centralizers connected to the drill stem solves the problems of torsional moment as well as lift force transmission during the process of horizontal well workover construction, and that special working tool is adopted according to the specific requirements of fishing down-hole junks, therefore having extremely strong pertinence and high success rate of fishing. Guiding heads and chamfers of the working tool play roles of hanging, blocking and jamming prevention.
Description
Affiliated technical field
The utility model relates to a kind of oil-water well overhauling technology of petroleum industry, particularly horizontal well overhaul pipeline technology drill column structure.
Background technology
Along with the petroleum industry science and technology is constantly progressive, the petroleum industry oil and gas development was once crossed " directional well " exploitation by initial " straight well " exploitation, developed into " horizontal well " exploitation at present.The advantage of " horizontal well " exploitation is: the earial drainage area that has further increased oil reservoir oil gas, improve the individual well oil and gas production, accelerated rate of oil production, improved the oil gas ultimate recovery, therefore, " horizontal well " exploitation is widely used in petroleum industry oil and gas development scene.
In oil, well exploitation manufacturing process, often can not ordinary production owing to reasons such as down-hole accidents, need to adopt the overhaul pipeline technology, oil, well are handled." straight well ", " directional well " overhaul pipeline technology are ripe, and The field can reach the needs of accident treatment fully.As the patent of notification number: CN2683831Y, disclose one time and bored the combination working string.Its assembled relation is: connect the special drill pipe box cupling in the tubing string bottom, under special tubing coupling, connect power tool or working string guide shoe, form working string, top connection connects the perforate sleeve pipe, perforate sleeve pipe bottom connects introducer, the introducer bottom connects directional head down, following directional head bottom connects sets upright pipe, set upright the pipe bottom and connect guide shoe, form outer tubing string-introducer assembly, outer tubing string is in the working string outside, and special tubing coupling is the tubing string the inside outside, and special tubing coupling maximum outside diameter is greater than the top connection upper-end inner diameter.This patent gathers together introducer assembly tubing string, working string and salvaging introducer assembly tubing string, the salvaging of only need that working string realizes simultaneously that the seat of introducer assembly is hung, working string being implemented introducer assembly after the normal operation construction and the end of job, be reduced by at least making a trip of twice tubing string, shorten oil well duty cycle, reduced operating cost.But because, the particularity of " horizontal well " well track, the moment of torsion of drill string and the power transmission of lifting are very difficult when making the horizontal well overhaul.Conventional " straight well ", " directional well " overhaul pipeline drill string can not satisfy the needs of " horizontal well " overhaul site operation fully.
The utility model content
The purpose of this utility model is: a kind of horizontal well overhaul pipeline drill string is provided, satisfies " horizontal well " overhaul pipeline site operation needs, ensure the overhaul of finishing " horizontal well " smoothly.Overcome existing " straight well ", " directional well " overhaul pipeline drill string, transfer torque and transmission lift power difficult technologies deficiency.
The purpose of this utility model is achieved in that horizontal well overhaul pipeline drill string is made up of drilling rod, centralizer and power tool.Because the particularity of horizontal well track, the moment of torsion and the power that lifts are transmitted difficulty, therefore, are connected with 10～20 groups of horizontal well centralizers on the drill string of lower horizontal well section, solve the moment of torsion in the horizontal well overhaul work progress and lift power transmission difficult problem.Power tool is connected the foot of horizontal well overhaul pipeline drill string.The power tool upper and lower end parts all has chamfering.The power tool end can be connected with target seeker in case of necessity.Described power tool determines according to the trouble of lost tool in hole situation.
The trouble of lost tool in hole end shape is understood when not knowing in to well, and what power tool adopted is the horizontal well lead stamp, prints, analyzes, judges junk end shape structure, to formulate down measure and the following well tool that the step well workover need be taked.
When the trouble of lost tool in hole inner chamber deposits silt is arranged, when needing flushing junk inner chamber, what power tool adopted is that horizontal well syringe and little washing pipe wash.
When needs flushing junk was peripheral, what power tool adopted was that the horizontal well milling pipe washes.
When junk in the well is a packer etc. when sitting card instrument or major diameter instrument, what power tool adopted is that horizontal well drags for lance and the fluid power stuck-releasing device is salvaged.
Junk is regular junk in well, and need salvage internally the time, what power tool adopted is that horizontal well drags for lance or the horizontal well die nipple is salvaged.
Junk is regular junk in well, and need be when salvage the outside, and what power tool adopted is that horizontal well dipper or horizontal well female coupling tap are salvaged.
Junk is blocked in well, and when needing back-off, what power tool adopted is that horizontal well left hand fishing spear or horizontal well back-off dipper carry out the back-off salvaging.
Effect of the present utility model: the utility model has bigger improvement on the fishing string structure design, makes it meet the actual needs of horizontal well heavy repair task and has produced good practical function.On drill string, be connected with the horizontal well centralizer, solved the moment of torsion in the horizontal well overhaul work progress and lifted the power problem of transmission.By the specific (special) requirements of salvaging trouble of lost tool in hole, adopted special-purpose horizontal well lead stamp, horizontal well syringe, horizontal well milling pipe, horizontal well to drag for special operation instruments such as lance, horizontal well dipper, horizontal well die nipple, horizontal well female coupling tap, horizontal well left hand fishing spear, horizontal well back-off dipper.Selected corresponding tool according to salvaging junk, with strong points, the fishing success ratio height.The power tool end is connected with target seeker in case of necessity; The power tool upper and lower end parts all has chamfering, play anti-hang, deter, the anti-sticking effect.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Fig. 1 is the utility model horizontal well overhaul pipeline drill column structure schematic diagram.
Fig. 2 be the utility model horizontal well overhaul pipeline drill string bottom, the horizontal well in the power tool of connection (4) drags for the lance schematic diagram.The link position of expression target seeker (5).
Among the figure: 1. drilling rod, 2. horizontal well centralizer, 3. drilling rod, 4. power tool, 5. target seeker, 6. chamfering.
The specific embodiment
The utility model is applied to the job site, has satisfied the needs of site operation fully, has finished the overhaul construction task of 6 mouthfuls of water horizontal wells so far.Explanation thus, the utility model has reached purpose of design.
Embodiment 1: consult accompanying drawing 1,2.The utility model is salvaged in Ji Dong oil field horizontal well overhaul work progress and is met the card oil pipe in the well.Horizontal well overhaul pipeline drill string is to be connected with 15 groups of horizontal well centralizers (2) on drilling rod (1,3).Power tool (4) adopts horizontal well to drag for lance, is connected the foot of horizontal well overhaul pipeline drill string.Power tool (4)---horizontal well drags for the lance upper and lower end parts all chamfering (6), and horizontal well drags for the lance bottom design target seeker (1).This well overhaul construction task has been finished in the success of salvaging back-off.
Embodiment 2: consult accompanying drawing 1,2, another embodiment of the present utility model.Salvage to salvage in the well as Ji Dong oil field horizontal well overhaul construction and need wash the sand control tube cavity when meeting the anti-sandpipe of card.Horizontal well overhaul pipeline drill string is to be connected with 18 groups of horizontal well centralizers (2) on drilling rod (1,3).Power tool (4) adopts horizontal well syringe and little washing pipe, is connected the foot of horizontal well overhaul pipeline drill string.Power tool (4)---horizontal well syringe and little washing pipe upper and lower end parts all have chamfering (6), and the syringe bottom design has target seeker, have finished sand control tube cavity flushing task smoothly, and it is smooth to make down the step salvage back-off.
Claims (8)
1, a kind of horizontal well overhaul pipeline drill string is made up of drilling rod (1,3), horizontal well centralizer (2) and power tool (4), it is characterized in that: on the drill string of lower horizontal well section, be connected with 10～20 groups of horizontal well centralizers (2), power tool (4) is connected the foot of horizontal well overhaul pipeline drill string, power tool (4) upper and lower end parts all has chamfering (6), and the power tool end is connected with target seeker (5) in case of necessity.
2, horizontal well overhaul pipeline drill string according to claim 1, it is characterized in that: described power tool (4) is the horizontal well lead stamp.
3, horizontal well overhaul pipeline drill string according to claim 1 is characterized in that: what described power tool (4) adopted is the horizontal well milling pipe.
4, horizontal well overhaul pipeline drill string according to claim 1 is characterized in that: what described power tool (4) adopted is that horizontal well drags for lance and fluid power stuck-releasing device.
5, horizontal well overhaul pipeline drill string according to claim 1 is characterized in that: what described power tool (4) adopted is horizontal well syringe and little washing pipe.
6, horizontal well overhaul pipeline drill string according to claim 1 is characterized in that: what described power tool (4) adopted is that horizontal well drags for lance or horizontal well die nipple.
7, horizontal well overhaul pipeline drill string according to claim 1 is characterized in that: what described power tool (4) adopted is horizontal well dipper or horizontal well female coupling tap.
8, horizontal well overhaul pipeline drill string according to claim 1 is characterized in that: what described power tool (4) adopted is horizontal well left hand fishing spear or horizontal well back-off dipper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013100 CN2916095Y (en) | 2006-05-11 | 2006-05-11 | Drill stem for horizontal well workover technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013100 CN2916095Y (en) | 2006-05-11 | 2006-05-11 | Drill stem for horizontal well workover technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916095Y true CN2916095Y (en) | 2007-06-27 |
Family
ID=38187003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620013100 Expired - Fee Related CN2916095Y (en) | 2006-05-11 | 2006-05-11 | Drill stem for horizontal well workover technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916095Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066688A (en) * | 2008-04-29 | 2011-05-18 | 杰文斯公司 | A force balancing system for use with a well bore tool |
| CN106223890A (en) * | 2016-09-29 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of oil pipe of horizontal well blast cutting construction technology |
| CN107620579A (en) * | 2017-08-31 | 2018-01-23 | 中国石油天然气股份有限公司 | Workover tool under Horizontal Well |
-
2006
- 2006-05-11 CN CN 200620013100 patent/CN2916095Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066688A (en) * | 2008-04-29 | 2011-05-18 | 杰文斯公司 | A force balancing system for use with a well bore tool |
| CN102066688B (en) * | 2008-04-29 | 2014-08-20 | 杰文斯公司 | A force balancing system for use with a well bore tool |
| CN106223890A (en) * | 2016-09-29 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of oil pipe of horizontal well blast cutting construction technology |
| CN106223890B (en) * | 2016-09-29 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of oil pipe of horizontal well blast cutting construction technology |
| CN107620579A (en) * | 2017-08-31 | 2018-01-23 | 中国石油天然气股份有限公司 | Workover tool under Horizontal Well |
| CN107620579B (en) * | 2017-08-31 | 2020-06-09 | 中国石油天然气股份有限公司 | Downhole workover tool for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20150511 |
|
| EXPY | Termination of patent right or utility model |