CN109869108A - A kind of broken well expandable casing patching device and its subsidy method - Google Patents
A kind of broken well expandable casing patching device and its subsidy method Download PDFInfo
- Publication number
- CN109869108A CN109869108A CN201811229164.6A CN201811229164A CN109869108A CN 109869108 A CN109869108 A CN 109869108A CN 201811229164 A CN201811229164 A CN 201811229164A CN 109869108 A CN109869108 A CN 109869108A
- Authority
- CN
- China
- Prior art keywords
- expansion
- tubing string
- tube
- cone
- expansion tube
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of broken well expandable casing patching device and its subsidy method, which includes that can fish out bottom to block up formula expansion guard system and tracer tubing string；The stifled formula expansion guard system in bottom that fishes out includes expansion tube, and several suspension bands are arranged on the outer tube wall of expansion tube；The bottom end of expansion tube, which is formed with, draws tiltedly, positioned at the outside expanding rear upper swollen cone chamber of formation of the tube body for the expansion tube for drawing oblique top；Upper swollen cone is intracavitary to be provided with expansion cone；Draw the gap tiltedly between tracer tubing string to be sealed using Salvageable bottom plug；The tracer tubing string includes tail pipe, box cupling, starting taper and ball seat；It is connected with box cupling and starting taper on tail pipe in turn from top to bottom, the bottom end of starting taper is tapered structure and inside is machined with ball seat；The broken well expandable casing patching device and its subsidy method are suitable for the casing-broken of oil gas water well, demand is repaired in the casing patching being difficult under the operating conditions such as economical and efficient reparation, have the characteristics that easy to operate, short construction period, sealed reliable.
Description
Technical field
The present invention relates to oil-gas field development technical field, in particular to a kind of broken well expandable casing patching device and its subsidy
Method.
Background technique
Casing-broken is a kind of important form of set damage, and a big difficulty of current well workover, not only cause oil-water well without
Method normally produces, and also directly reduces the service life of well, brings and seriously affects to the economical and efficient exploitation in oil field.Typically,
Taking set technology is to repair a kind of conventional process of broken well, but such technique usually requires to be equipped with dedicated set miller work
Liquid, dedicated milling tools, collar buster and casing mend bonding tool, generally require before casing-pipe cutting and tieback in advance
Cover mill off near wellbore as deep as tens of rice even hundreds of meters of cementing concrete ring, working procedure is more, long construction period, expense compared with
It is high, it is difficult to cost-effectively to realize casing damaged well reparation.
Tube expansion technique is one developed in recent years important workover process technology, can be with simple process, cheap
Cost solves the problems, such as the sets damage such as set leakage, corrosion.Compared to conventional casing damaged well repair mode, speed is fast, applies with repairing for the technology
The advantages such as work is high-efficient, latus rectum loss is small, operating cost is low, receive universal attention.But typically, exist for casing
The problem wells of bad break problem, conventional expandable casing patching technology is due to a lack of effective gatherer and hand technical, it is difficult to effectively
Tripping in bad break well section to be subsidized simultaneously is implemented to subsidize repair, causes great puzzlement to the efficient reparation of broken well.
For the problem of casing-broken well repair, urgent need develops a kind of short construction period, easy to operate, economical and efficient
Expandable casing patching device.
Summary of the invention
The object of the present invention is to provide a kind of broken well expandable casing patching device and its subsidy methods.
For this purpose, technical solution of the present invention is as follows:
A kind of broken well expandable casing patching device, which is characterized in that block up formula expansion guard system and tracer pipe including bottom can be fished out
Column；The tracer tubing string, which is removably nested in, can fish out the tail portion that formula expansion guard system is blocked up at bottom；
The stifled formula expansion guard system in bottom that fishes out includes expansion tube, and it is close that several suspensions are arranged on the outer tube wall of expansion tube
Seal band；The bottom end of expansion tube, which is formed with, draws tiltedly, positioned at the tube body lower part for the expansion tube for the drawing oblique top shape after cold-drawn is expanding outward
At upper swollen cone chamber；Drawing oblique placed inside has Salvageable bottom plug and is machined with for placing the annular brace step that can be fished out bottom and block up；On
Swollen cone is intracavitary to be provided with expansion cone；Tracer tubing string, which is located at, can fish out the stifled lower section in bottom, be connected by dedicated screw thread with can fish out bottom and block up, and lead to
The stifled lower section for being suspended on expansion guard system in bottom can be fished out by crossing；
The tracer tubing string includes tail pipe, box cupling, starting taper and ball seat；Be connected in turn from top to bottom on tail pipe box cupling and
Starting taper；Starting taper inner cavity has through-hole, and circulation well cleanup can be realized during device enters well；The bottom end of starting taper is that taper is 35 °
Tapered structure and inside is machined with ball seat can be achieved tubing string closing and be built the pressure after pitching；On tail pipe carry screw thread by its with
Salvageable bottom plug is connected as one, and is completed tracer tubular column system with that can fish out bottom and is blocked up the connection that formula expands guard system.
Further, the expansion tube, upper swollen cone chamber and to draw tiltedly tubing used be low-carbon alloy steel seamless steel tube warp
Special thermal treatment processing and fabricating forms；The basis of seamless steel pipe are as follows: 0.05~0.25C, 0.5~3.0Mn, 1.0~
1.5Si, 0.5~2.0Ni, are calculated in mass percent, and assist with micro Mo, Nb, Ti, Re alloying element, surplus Fe；Its heat
Treatment process are as follows: be air-cooled to+700 DEG C of intercritical annealings after being heated to 930 DEG C of austenitizings, be then cooled to+300 DEG C of bismuth baths etc.
It is air-cooled after temperature processing；The pipe structure finally obtained is to contain 6%~12% austenite, 15%~25% with volume fraction
The heterogeneous structure structure that martensite, surplus are constituted for sub- warm ferrite and a small amount of bainite.
Further, the Salvageable bottom plug and expansion cone are all made of the 42CrMo steel alloy containing a small amount of Re alloying element
Bar is formed through special thermal treatment processing and fabricating；Its heat treatment process be first through 860 DEG C of normalizings and come out of the stove it is air-cooled, by 900 DEG C
Oil quenching after reheating, and then pass through subsequent 160 DEG C of lonneals.
Further, the tail pipe, box cupling, starting taper, ball seat are all made of 37Mn5V steel through special thermal treatment processing and fabricating
It forms；Its heat treatment process is the dry quenching after 880 DEG C of influence of high austenizing temp, last 600 DEG C of tempering.
Further, it is provided with swollen cone band in the expansion cone, the stifled sealing in bottom is provided on Salvageable bottom plug
Band.
Further, the upper swollen cone chamber has a style of one's own with expansion tube, for the expanding system of cold-drawn on former expansion tube tube body
It forms；Draw and is tiltedly made for individually machining；Upper swollen cone chamber is tiltedly connected as one with drawing by special welding.
Further, the upper swollen cone chamber and draw oblique wall thickness 2mm small compared with expansion tube, draw the oblique maximum with upper swollen cone chamber
Outer diameter is 4mm smaller than the outer diameter after expansion tube hose expansion, 8mm smaller than the internal diameter wait subsidize section casing.
Further, the top of the expansion tube body and draw inclined portion position and be each formed with 15~20 ° of chamferings.
Further, the outside of the expansion cone and Salvageable bottom plug vulcanizes and has containing 1.8~2.5wt.% nano oxygen
Change the hydrogenated butyronitrile rubber sealing ring of zinc and the nanometer molybdenum sulfide hardening constituent of 0.8~1.0wt.%, the outer diameter of the sealing ring is more swollen than upper
It bores chamber and draws the big 0.5mm of oblique internal diameter.
A kind of subsidy method based on broken well expandable casing patching device, including the following steps carried out in order:
1) it using the short casing section mill of tubing string tail band is accompanied to the progress milling of casing-broken well section, opens a window in casing side, until
Fracture can satisfy expansion tube tieback assembly latus rectum；
2) it uses and accompanies the long conical surface milling cone to bad break well section of tubing string tail band or more 5m circulation expansion milling, while modifying fracture
The borehole wall is cleaned；
3) after simulation drifting is qualified, formula expandable casing patching tieback is blocked up at the bottom of fishing out with tracer tubing string by accompanying tubing string
Device is above bad break well section, then slowly pressurization, in the bad break casing after enabling the smooth tripping in windowing of tracer tubing string, into
And by the subsidy of expansion tube and hermetic unit accurately down toward to tieback well section；
4) ground high-pressure pump is suppressed, and is carried out circulation well cleanup by accompanying drilling rod and tracer tubing string inner hole, is removed pit shaft nearby
Interior sundries；
5) steel ball is put into, suppressing by ground high-pressure pump will form a seal at Steel ball conveyor to ball seat；
6) continue to increase pump pressure, after pressure needed for reaching expansion tube hose expansion, expansion cone under highly pressurised liquid promotion on
Row, gradually the tube body of distending expansion tube, the expansion of guard system is expanded up to completing the whole series；
7) it rises and to accompany drilling rod and expansion cone, using drilling rod tripping in sliding block trip spear, can fish out that bottom is stifled and tracer tubing string is pulled out；
8) the drilling rod milling of tripping in tail band helicoid hydraulic motor and long conical surface milling cone falls to draw oblique internal support level (81), restores
Construction is completed in channel.
Compared with prior art, the broken well expandable casing patching device and its subsidy method are suitable for the casing of oil gas water well
Demand is repaired in bad break, the casing patching being difficult under the operating conditions such as economical and efficient reparation, has easy to operate, short construction period, sealing
The features such as reliable.The maximum outside diameter of the patch device about 8mm smaller than the internal diameter wait subsidize section casing, itself and tripping in are increased
Bending section or bad break well section gap can mention under the cooperation of tracer tubing string effectively by expansion tube system introducing well section to be subsidized
High tubing string improves the success rate of broken well subsidy operation in curved portion or the tripablity of bad break well section.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of broken well expandable casing patching device provided by the invention.
Fig. 2 is the partial enlargement structural representation of upper swollen cone chamber.
Fig. 3 is the partial enlargement structural representation that bottom is blocked up.
Fig. 4 is the partial enlargement structural representation for expanding vertebra.
Fig. 5 (a)~Fig. 5 (b) is that steel ball puts into contrast schematic diagram before and after ball seat.
Fig. 6 (a) is damage cannula-like state schematic diagram.
Fig. 6 (b) is fenestration schematic diagram.
Fig. 6 (c) is to expand milling shaping schematic diagram.
Fig. 6 (d) is that shaping finishes schematic diagram.
Fig. 6 (e) is lower expansion pipe column schematic diagram.
Fig. 6 (f) is that tube expansion schematic diagram is suppressed in pitching.
Fig. 6 (g) is that schematic diagram is completed in expansion.
Fig. 6 (h) is to salvage bottom to block up schematic diagram.
Fig. 6 (i) is milling step schematic diagram.
Fig. 6 (j) is that construction finishes schematic diagram.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described further, but following embodiments are absolutely not to this hair
It is bright to have any restrictions.
A kind of broken well expandable casing patching device as shown in figures 1-4, including can fish out bottom and block up formula expansion guard system and tracer
Tubing string；The tracer tubing string, which is removably nested in, can fish out the tail portion that formula expansion guard system is blocked up at bottom；
The stifled formula expansion guard system in bottom that fishes out includes expansion tube 1, and several suspensions are arranged on the outer tube wall of expansion tube 1
Band 2；The bottom end of expansion tube 1, which is formed with, draws oblique 8, and the tube body lower part positioned at the expansion tube 1 for drawing oblique 8 top is expanded through cold-drawn outward
Upper swollen cone chamber 6 is formed after diameter；Drawing oblique 8 placed inside has Salvageable bottom plug 7 and is machined with for placing the annular branch that can fish out bottom stifled 7
Support step；Expansion cone 4 is provided in upper swollen cone chamber 6；Tracer tubing string, which is located at, can fish out stifled 7 lower section in bottom, by dedicated screw thread with can fish out
Bottom stifled 7 is connected, and the lower section for being suspended on expansion guard system by that can fish out bottom stifled 7；
The tracer tubing string includes tail pipe 9, box cupling 10, starting taper 11 and ball seat 12；It is sequentially connected from top to bottom on tail pipe 9
There are box cupling 10 and starting taper 11；11 inner cavity of starting taper has through-hole, and circulation well cleanup can be realized during device enters well；The bottom of starting taper 11
End is the tapered structure that taper is 35 ° and inside is machined with ball seat 12, and tubing string closing can be achieved after pitching and build the pressure；Tail pipe 9
It is connected as one by upper included screw thread with Salvageable bottom plug 7, completes tracer tubular column system and can fish out bottom to block up formula expansion piping
The connection of system.
The expansion tube 1, upper swollen cone chamber 6 and tubing used in drawing oblique 8 are low-carbon alloy steel seamless steel tube through special heat
Processing is made；The basis of seamless steel pipe are as follows: 0.05~0.25C, 0.5~3.0Mn, 1.0~1.5Si, 0.5~
2.0Ni is calculated in mass percent, and is assisted with micro Mo, Nb, Ti, Re alloying element, surplus Fe；Its heat treatment process are as follows:
+ 700 DEG C of intercritical annealings are air-cooled to after being heated to 930 DEG C of austenitizings, are then cooled to sky after+300 DEG C of bismuth bath isothermal processes
It is cold；The pipe structure finally obtained is to contain 6%~12% austenite, 15%~25% martensite, remaining with volume fraction
Measure the heterogeneous structure structure constituted for sub- warm ferrite and a small amount of bainite.
The Salvageable bottom plug 7 and expansion cone 4 is all made of the warp of the 42CrMo steel alloy bar containing a small amount of Re alloying element
Special thermal treatment processing and fabricating forms；Its heat treatment process be first through 860 DEG C of normalizings and come out of the stove it is air-cooled, by 900 DEG C it is secondary plus
Oil quenching after heat, and then pass through subsequent 160 DEG C of lonneals.
The tail pipe 9, box cupling 10, starting taper 11, ball seat 12 be all made of 37Mn5V steel through special thermal treatment processing and fabricating and
At；Its heat treatment process is the dry quenching after 880 DEG C of influence of high austenizing temp, last 600 DEG C of tempering.
It is provided with swollen cone band 5 in the expansion cone 4, bottom is provided on Salvageable bottom plug 7 and blocks up band 71.
The upper swollen cone chamber 6 has a style of one's own with expansion tube 1, is made for cold-drawn is expanding on former expansion tube tube body；
Draw oblique 8 to be made for individually machining；Upper swollen cone chamber 6 is connected as one with drawing oblique 8 by special welding.
The upper swollen cone chamber 6 and the wall thickness for drawing oblique 8 are 2mm small compared with expansion tube 1, draw the maximum outside diameter of oblique 8 with upper swollen cone chamber 6
It is 4mm smaller than the outer diameter after expansion tube hose expansion, 8mm smaller than the internal diameter wait subsidize section casing.
The top of 1 ontology of expansion tube and draws oblique 8 position and be each formed with 15~20 ° of chamferings.
The outside of the expansion cone 4 and Salvageable bottom plug 7 vulcanize have containing 1.8~2.5wt.% nano zine oxide and
The hydrogenated butyronitrile rubber sealing ring of the nanometer molybdenum sulfide hardening constituent of 0.8~1.0wt.%, the outer diameter of the sealing ring is than upper swollen 6 He of cone chamber
Draw the oblique 8 big 0.5mm of internal diameter.
A kind of subsidy method using broken well expandable casing patching device, shown in subsidy process such as Fig. 6 (a)~6 (j), packet
Include the following steps carried out in order:
1) it using the short casing section mill of tubing string tail band is accompanied to the progress milling of casing-broken well section, opens a window in casing side, until
Fracture can satisfy expansion tube tieback assembly latus rectum；
2) it uses and accompanies the long conical surface milling cone to bad break well section of tubing string tail band or more 5m circulation expansion milling, while modifying fracture
The borehole wall is cleaned, the tripping in of follow-up expansion pipe is reduced and hangs the risk that band hangs tag in the process；
3) after simulation drifting is qualified, formula expandable casing patching tieback is blocked up at the bottom of fishing out with tracer tubing string by accompanying tubing string
Device is above bad break well section, then slowly pressurization, in the bad break casing after enabling the smooth tripping in windowing of tracer tubing string, into
And by the subsidy of expansion tube and hermetic unit accurately down toward to tieback well section, during can fish out bottom and block up the tripping in of formula expansion tube, help
Positive pipe nipple 3 carries out righting to the tripping in direction that can fish out the stifled formula expansion tube in bottom always；
4) ground high-pressure pump is suppressed, and is carried out circulation well cleanup by accompanying drilling rod and tracer tubing string inner hole, is removed pit shaft nearby
Interior sundries；
5) steel ball is put into, being suppressed by ground high-pressure pump will form a seal at Steel ball conveyor to ball seat 12, put into
Journey such as Fig. 5 (a)~as shown in Fig. 5 (b)；
6) continue to increase pump pressure, after pressure needed for reaching expansion tube hose expansion, expansion cone 4 under highly pressurised liquid promotion on
Row, gradually the tube body of distending expansion tube 1, the expansion of guard system is expanded up to completing the whole series；
7) it rises and to accompany drilling rod and expansion cone 4, using drilling rod tripping in sliding block trip spear, bottom stifled 7 and the fishing of tracer tubing string can be fished out
Out；
8) the drilling rod milling of tripping in tail band helicoid hydraulic motor and long conical surface milling cone falls to draw oblique internal support level 81, restores logical
Construction is completed in road.
Claims (10)
1. a kind of broken well expandable casing patching device, which is characterized in that block up formula expansion guard system and tracer tubing string including bottom can be fished out；
The tracer tubing string, which is removably nested in, can fish out the tail portion that formula expansion guard system is blocked up at bottom；
The stifled formula expansion guard system in bottom that fishes out includes expansion tube (1), is arranged with several suspensions on the outer tube wall of expansion tube (1)
Band (2)；The bottom end of expansion tube (1), which is formed with, draws oblique (8), positioned at the tube body lower part for the expansion tube (1) for drawing oblique (8) top to
It is outer that upper swollen cone chamber (6) is formed after cold-drawn is expanding；Drawing oblique (8) placed inside has Salvageable bottom plug (7) and is machined with for placing
The annular brace step that (7) are blocked up at bottom can be fished out；Expansion cone (4) are provided in upper swollen cone chamber (6)；Tracer tubing string is stifled positioned at that can fish out bottom
(7) lower section is connected with that can fish out bottom stifled (7) by dedicated screw thread, and is expanded under guard system by that can fish out bottom and block up (7) and be suspended on
Side；
The tracer tubing string includes tail pipe (9), box cupling (10), starting taper (11) and ball seat (12)；On tail pipe (9) from top to bottom according to
It is secondary to be connected with box cupling (10) and starting taper (11)；Starting taper (11) inner cavity has through-hole, can realize that circulation is washed during device enters well
Well；The bottom end of starting taper (11) is the tapered structure that taper is 35 ° and inside is machined with ball seat (12), and tubing string can be achieved after pitching
It closes and builds the pressure；It is connected as one by the screw thread carried on tail pipe (9) with Salvageable bottom plug (7), completes tracer tubular column system
The connection that formula expands guard system is blocked up with bottom can be fished out.
2. broken well expandable casing patching device according to claim 1, which is characterized in that the expansion tube (1), upper swollen
Boring chamber (6) and drawing tubing used in oblique (8) is that low-carbon alloy steel seamless steel tube is formed through special thermal treatment processing and fabricating；Seamless steel
The basis of pipe are as follows: 0.05~0.25C, 0.5~3.0Mn, 1.0~1.5Si, 0.5~2.0Ni are calculated in mass percent, auxiliary
It helps with micro Mo, Nb, Ti, Re alloying element, surplus Fe；Its heat treatment process are as follows: be heated to sky after 930 DEG C of austenitizings
It is cooled to+700 DEG C of intercritical annealings, is then cooled to air-cooled after+300 DEG C of bismuths bath isothermal processes；The pipe structure finally obtained is
What it is with volume fraction is sub- warm ferrite and a small amount of bayesian containing 6%~12% austenite, 15%~25% martensite, surplus
The heterogeneous structure structure that body is constituted.
3. broken well expandable casing patching device according to claim 2, which is characterized in that the Salvageable bottom plug (7)
The 42CrMo steel alloy bar containing a small amount of Re alloying element is all made of with expansion cone (4) to form through special thermal treatment processing and fabricating；
Its heat treatment process be first through 860 DEG C of normalizings and come out of the stove it is air-cooled, by oil quenching after 900 DEG C of reheatings, and then by subsequent
160 DEG C of lonneals.
4. broken well expandable casing patching device according to claim 3, which is characterized in that the tail pipe (9), box cupling
(10), starting taper (11), ball seat (12) are all made of 37Mn5V steel and form through special thermal treatment processing and fabricating；Its heat treatment process is warp
Dry quenching after 880 DEG C of influence of high austenizing temp, last 600 DEG C of tempering.
5. broken well expandable casing patching device according to claim 4, which is characterized in that in the expansion cone (4)
It is provided with swollen cone band (5), bottom is provided on Salvageable bottom plug (7) and blocks up band (71).
6. broken well expandable casing patching device according to claim 5, which is characterized in that the upper swollen cone chamber (6) with
Expansion tube (1) has a style of one's own, and is made for cold-drawn is expanding on former expansion tube tube body；Drawing oblique (8) is individually machining production
It forms；Upper swollen cone chamber (6) tiltedly (8) is connected as one by special welding with drawing.
7. broken well expandable casing patching device according to claim 6, which is characterized in that the upper swollen cone chamber (6) and
Draw the wall thickness of oblique (8) compared with expansion tube (1) small 2mm, draws oblique (8) and the maximum outside diameter of upper swollen cone chamber (6) is more swollen than expansion tube tube body
It is the small 4mm of outer diameter after swollen, 8mm smaller than the internal diameter wait subsidize section casing.
8. broken well expandable casing patching device according to claim 3, which is characterized in that described expansion tube (1) ontology
Top and draw oblique (8) position and be each formed with 15~20 ° of chamferings.
9. broken well expandable casing patching device according to claim 4, which is characterized in that the expansion cone (4) and can
The outside that (7) are blocked up at fishing formula bottom vulcanizes the nanometer molybdenum sulfide having containing 1.8~2.5wt.% nano zine oxide and 0.8~1.0wt.%
The outer diameter of the hydrogenated butyronitrile rubber sealing ring of hardening constituent, the sealing ring is 0.5mm bigger than the upper swollen internal diameter bored chamber (6) and draw oblique (8).
10. a kind of subsidy method based on the broken well expandable casing patching device as described in requiring 1, which is characterized in that including pressing
The following steps that sequence carries out:
1) it using the short casing section mill of tubing string tail band is accompanied to the progress milling of casing-broken well section, opens a window in casing side, until fracture
It can satisfy expansion tube tieback assembly latus rectum；
2) using the long conical surface milling cone to bad break well section of tubing string tail band or more 5m circulation expansion milling is accompanied, to well while modifying fracture
Wall is cleaned；
3) after simulation drifting is qualified, formula expandable casing patching tieback assembly is blocked up at the bottom of fishing out with tracer tubing string by accompanying tubing string
Above bad break well section, then slowly pressurize, in the bad break casing after enabling the smooth tripping in windowing of tracer tubing string, and then will
The subsidy of expansion tube and hermetic unit are accurately down toward to tieback well section；
4) ground high-pressure pump is suppressed, and is carried out circulation well cleanup by accompanying drilling rod and tracer tubing string inner hole, is removed miscellaneous in pit shaft nearby
Object；
5) steel ball is put into, suppressing by ground high-pressure pump will form a seal at Steel ball conveyor to ball seat (12)；
6) continue to increase pump pressure, after pressure needed for reaching expansion tube hose expansion, expansion cone (4) under highly pressurised liquid promotion on
Row, gradually the tube body of distending expansion tube (1), the expansion of guard system is expanded up to completing the whole series；
7) it rises and to accompany drilling rod and expansion cone (4), using drilling rod tripping in sliding block trip spear, bottom can be fished out and block up (7) and the fishing of tracer tubing string
Out；
8) the drilling rod milling of tripping in tail band helicoid hydraulic motor and long conical surface milling cone falls to draw oblique internal support level (81), restores logical
Construction is completed in road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229164.6A CN109869108A (en) | 2018-10-22 | 2018-10-22 | A kind of broken well expandable casing patching device and its subsidy method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229164.6A CN109869108A (en) | 2018-10-22 | 2018-10-22 | A kind of broken well expandable casing patching device and its subsidy method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109869108A true CN109869108A (en) | 2019-06-11 |
Family
ID=66916918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811229164.6A Pending CN109869108A (en) | 2018-10-22 | 2018-10-22 | A kind of broken well expandable casing patching device and its subsidy method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869108A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456665A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气股份有限公司 | Soluble expansion patching device and method |
| CN112483033A (en) * | 2020-11-17 | 2021-03-12 | 中国石油天然气股份有限公司 | Non-metal pipe sleeve repairing structure and repairing method |
| CN117662051A (en) * | 2024-01-31 | 2024-03-08 | 大庆金祥寓科技有限公司 | Repair reinforcing tool and repair reinforcing process for high-strength expansion jumper of fractured well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990005832A1 (en) * | 1988-11-22 | 1990-05-31 | Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanoi Promyshlennosti | Method of casing the production seam in a well |
| CN101457637A (en) * | 2009-01-06 | 2009-06-17 | 刘文西 | Sealing expansion tube apparatus for repairing petroleum thermal production well and implementing method |
| CN101886529A (en) * | 2009-05-12 | 2010-11-17 | 崔朝轩 | Technique for repairing fault broken well and opening up passage |
| CN201851057U (en) * | 2010-09-26 | 2011-06-01 | 中国石油化工股份有限公司 | Casing-broken well repair tubular column |
| CN201924856U (en) * | 2010-12-31 | 2011-08-10 | 中国石油天然气集团公司 | Device capable of fishing bottom plugs of expansion pipe launching chambers |
| CN105275419A (en) * | 2014-07-25 | 2016-01-27 | 陕西胜慧源信息科技有限公司 | Petroleum drilling equipment |
| CN107542420A (en) * | 2016-06-24 | 2018-01-05 | 中石化石油工程技术服务有限公司 | Salvaging type expandable casing patching exempts to bore plug device |
-
2018
- 2018-10-22 CN CN201811229164.6A patent/CN109869108A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990005832A1 (en) * | 1988-11-22 | 1990-05-31 | Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanoi Promyshlennosti | Method of casing the production seam in a well |
| CN101457637A (en) * | 2009-01-06 | 2009-06-17 | 刘文西 | Sealing expansion tube apparatus for repairing petroleum thermal production well and implementing method |
| CN101886529A (en) * | 2009-05-12 | 2010-11-17 | 崔朝轩 | Technique for repairing fault broken well and opening up passage |
| CN201851057U (en) * | 2010-09-26 | 2011-06-01 | 中国石油化工股份有限公司 | Casing-broken well repair tubular column |
| CN201924856U (en) * | 2010-12-31 | 2011-08-10 | 中国石油天然气集团公司 | Device capable of fishing bottom plugs of expansion pipe launching chambers |
| CN105275419A (en) * | 2014-07-25 | 2016-01-27 | 陕西胜慧源信息科技有限公司 | Petroleum drilling equipment |
| CN107542420A (en) * | 2016-06-24 | 2018-01-05 | 中石化石油工程技术服务有限公司 | Salvaging type expandable casing patching exempts to bore plug device |
Non-Patent Citations (1)
| Title |
|---|
| 第422-429页: "打通道技术及膨胀管补贴技术的现场应用", 《油气井测试》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456665A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气股份有限公司 | Soluble expansion patching device and method |
| CN112483033A (en) * | 2020-11-17 | 2021-03-12 | 中国石油天然气股份有限公司 | Non-metal pipe sleeve repairing structure and repairing method |
| CN117662051A (en) * | 2024-01-31 | 2024-03-08 | 大庆金祥寓科技有限公司 | Repair reinforcing tool and repair reinforcing process for high-strength expansion jumper of fractured well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109869108A (en) | A kind of broken well expandable casing patching device and its subsidy method | |
| CN103774992B (en) | The drive unit of bloat tool under cased well | |
| CN107489397A (en) | A kind of solvable bridging plug and oil gas well shaft insulate method temporarily | |
| CN109267983B (en) | Horizontal well repeated fracturing device and method based on open hole preset pipe string well completion | |
| CN104695927A (en) | Coiled tubing and production tubing combined string fracturing and well completion integrated method | |
| CN104153735A (en) | Expansion pipe patching device | |
| CN107489405B (en) | Method for dragging sand-blasting perforation and annular sand-filling staged fracturing by continuous oil pipe | |
| CN105443099A (en) | Method for upward movement fracturing of horizontal well of naked eye prefabricated tubing completion | |
| CN104653154B (en) | Drifting and scraping integrated tool | |
| CN106894783B (en) | Method for drilling and milling plug of coiled tubing | |
| CN107762451A (en) | Well completion method is transformed in a kind of coal bed gas horizontal well payzone underbalance reaming | |
| CN104847263A (en) | Coal bed methane far-end butt joint horizontal well drilling method | |
| CN108086936A (en) | A kind of odd-shaped cross section sheath repairing tool | |
| CN205243462U (en) | Shallow layer cover leaks big latus rectum metal inflation reinforcing apparatus | |
| CN110055988A (en) | For foundation pit drainage-decompression inner curtain type combined shaft and working method and application | |
| CN109723377B (en) | Open hole well completion reservoir integrated transformation method for window-opening side drilling | |
| CN104790895B (en) | Cable transmits drillable water supply well blocking method | |
| CN106801589A (en) | High temperature resistant big orifice hydraulic booster expanding suspension instrument and method | |
| CN109209284B (en) | Long well section casing damage well subsidy reinforcing apparatus | |
| CN207111019U (en) | Combined type junk mill for different hole diameters | |
| CN104234684A (en) | Pressure-controlled opening type fracturing sliding sleeve | |
| CN101586454A (en) | Process of reinforcing underground supercharged expansion pipe | |
| CN205172498U (en) | Top -down's expandable casing expansion device | |
| CN204252927U (en) | Well cementing tool | |
| CN203685094U (en) | Multi-clamp sleeve layered packing repair device for expansion pipe of long-section casing damage well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190611 |
|
| WD01 | Invention patent application deemed withdrawn after publication |