CN202866718U - Hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells - Google Patents
Hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells Download PDFInfo
- Publication number
- CN202866718U CN202866718U CN 201220395574 CN201220395574U CN202866718U CN 202866718 U CN202866718 U CN 202866718U CN 201220395574 CN201220395574 CN 201220395574 CN 201220395574 U CN201220395574 U CN 201220395574U CN 202866718 U CN202866718 U CN 202866718U
- Authority
- CN
- China
- Prior art keywords
- hook
- sand
- electric pump
- hook body
- salvaging
- 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
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells. The hollow outer hook special for salvaging the cables buried by the sand in the serious sand flow electric pump wells comprises a hook body and an upper connector which is arranged at the upper end of the hook body. The hook body is provided with hook teeth which are used for hooking the cables. The hook teeth are upswept and extend out on the hook body. The rear ends of the hook teeth are inlaid inside the hook body and are integrally fixed with the hook body through weld. The center of the hook body is provided with a perforating circulation hole (water hole). The lower end of the hook body is designed to be an inclined tip which can be conveniently inserted into winding bundles of the cables. The upper connector is an oil tube with inner threads. The hollow outer hook special for salvaging the cables buried by the sand in the serious sand flow electric pump wells solves problems in the prior art and uses a circulation channel in the middle of the hollow outer hook so as to achieve large discharge quantity edulcoration stratum sand. Due to the facts that the inclined tip at the bottom of the tool can be inserted into the cables and the hook teeth hook the cables under the action of rotating pressurization, salvage is achieved.
Description
Technical field
The utility model relates to the electric pump well salvaging sand that seriously shakes out and buries the cable special tool, and specifically a kind of electric pump well that seriously shakes out is salvaged sand and buried the outer hook of cable special hollow.
Background technology
Because many oil fields belong to the multistage structural block of complicated geology, some oil recovery blocks shake out very serious, and because geological condition is complicated, the damage that well is caused for overcoming strata pressure, the production string of G.I.H are Φ 139.7mm sleeve pipe, and its internal diameter is between Φ 118-124mm, in such slim-hole, carry out the salvaging of electric pump well, originally difficulty is just large, and adding seriously shakes out causes junk sand to bury, and its salvaging difficulty is just larger.In a single day process badly for the salvaging of electric pump well, may cause accident complicated, even oil well is scrapped.
According to for many years to work accident statistics, because the shake out electric pump unit that causes and tubing string sand of electric pump well buries to repair on the accident and occupies certain ratio.
(1). the conventional sand of salvaging buries the oil pipe technology, and all the time, the salvaging of burying oil pipe for sand is processed the method that often adopts and is: lower long casing section mill buries the outer annular space of oil pipe with sand and rinses well first, descends fishing tool to salvage again.Because the outer annular space of electric pump well oil pipe also has a large flat cable, mill then will cable joint-box brokenly if overlap, the cable skin fragment of generation and cable copper cash fragment will badly influence salvages construction, even can cause lock of tool drilling.
(2). determine to bury salvaging electric pump well sand the scheme of oil pipe construction, by the analysis to the down-hole situation, think that the top and the bottom external diameter of oil pipe is identical, on to carry frictional resistance less, although there is large flat cable in the electric pump well tubing string outside, but it is to rely on the electric pump clamp to be fixed on the oil pipe outside, is not very firm, can make its loosening dropping during rotation.Therefore determine to adopt the method for reverse deduction fishing oil pipe.Because the oil pipe outside is all buried by reservoir sand, can adopt the back reaming mode that fishing junk is gone out when salvaging upper junk, good through on-the-spot use certificate actual effect fruit.
(3). salvage electric pump well sand and bury selecting of oil pipe instrument, because top of fish top shakes out seriously, salvage in order to realize cyclic flusher, the while is also in order to prevent that back-off from not opening the generation of phenomenon, determined that the employing releasable fishing socket salvages.When top of fish is tubing coupling, can adopt the spiral dipper, can adopt basket dipper when top of fish is the oil pipe body, in case can withdraw from instrument when back-off is invalid, guarantee construction safety.
In fact, the most important thing is that sand buries the salvaging of cable, all the time, the method for processing often employing for the salvaging of the large flat cable of electric pump well is: lower movable outer hook or dead outer hook are salvaged, and in particular cases sometimes also can use the outer hook of spiral.But what these instruments had can't wash salvaging without hydrophthalmia, although have hydrophthalmia arranged, the hydrophthalmia size is less, can't satisfy the needs of high flow rate washover.
In view of this, for the problems referred to above, propose a kind of electric pump well that seriously shakes out reasonable in design and that effectively improve above-mentioned disappearance and salvage the outer hook of special hollow that sand buries cable.
The utility model content
The purpose of this utility model is to provide the electric pump well that seriously shakes out to salvage the outer hook of special hollow that sand buries cable, has solved the problem that prior art exists.Utilized circulation canal in the middle of the hollow outer hook to realize that large discharge capacity cleans reservoir sand, instrument bottom tiltedly point can be inserted in the cable, realizes salvaging thereby briar tooth tangles cable under the effect of rotation pressurization.
In order to reach above-mentioned purpose, the utility model provides following technical scheme: the electric pump well that seriously shakes out is salvaged the hollow outer hook of special tool that sand buries cable, comprise the hook body and be arranged on the top connection that hook is held with it, described hook is provided with to hook the briar tooth of cable with it, and described briar tooth is with it at hook and stretches out obliquely state.
Described briar tooth rear end is embedded in hook body inside and is fixed into one by welding and hook body.
Described hook body center is the circulation port of perforation.
Described hook is designed in the lower end be convenient to insert cable around the inclined point shape of bundle.
Described top connection is the internal thread oil pipe.
Described hook body external diameter Φ 50mm, internal diameter Φ 40mm, what material adopted is the G105 steel.
Compared to prior art, the utlity model has following beneficial effect:
The utility model has utilized the circulation canal in the middle of the hollow outer hook to realize that large discharge capacity cleans reservoir sand, and the oblique point of instrument bottom can insert in the cable, realizes salvaging thereby briar tooth tangles cable under the effect of rotation pressurization.This instrument has guaranteed the large flat cable on the oil pipe top of fish to be salvaged clean after salvaging, avoided the phenomenon of reprocessing top of fish.The use of this instrument success is for the lower step finishes smoothly this well construction and lays a good foundation.
(1). the large flat cable that adopts hollow outer hook to salvage in the situation of seriously shaking out has good result.Hollow outer hook is the instrument pluses and minuses according to various salvaging cables, processes in conjunction with on-the-spot practice of construction situation design again.In the situation of seriously shaking out, can realize large displacement flush salvaging, have good salvaging effect.
(2). salvage the operating procedure technical research.When using hollow outer hook to salvage cable, by rational operation and judgement, realized the cable salvage on oil pipe top totally, avoided the not clean effective difficult problem of fishing oil pipe of cable salvage.
Description of drawings
Fig. 1 is that the electric pump well that seriously shakes out of the present utility model is salvaged the structural representation that sand buries the outer hook of cable special hollow.
Among the figure: 1, top connection; 2, hook body; 3, briar tooth; 4, circulation port.
The specific embodiment
Relevant detailed description of the present utility model and technology contents cooperate description of drawings as follows, yet accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
According to shown in Figure 1, the electric pump well that seriously shakes out is salvaged sand and is buried the outer hook of cable special hollow, comprise hook body 2 and be arranged on the top connection 1 that hook is held with it, described hook is provided with to hook the briar tooth 3 of cable with it, and described briar tooth is with it at hook and stretches out obliquely state.Described briar tooth rear end is embedded in hook body inside and is fixed into one by welding and hook body.Described hook body center is the circulation port 4 of perforation, is called again hydrophthalmia.Described hook is designed in the lower end be convenient to insert cable around the inclined point shape of bundle.Described top connection is the internal thread oil pipe.Described hook body external diameter Φ 50mm, internal diameter Φ 40mm, what material adopted is the G105 steel.
In the past in the well in operation construction also the someone design and processed hollow outer hook, should process with hollow rod outside weldings recovery hook by outer hook, because hollow rod external diameter maximum only has Φ 25mm, internal diameter Φ 12mm, therefore it is very little to lift power on, and its anti-twisting property is also very poor, because its internal diameter is less, impact force to reservoir sand is very little, does not reach expected effect.Hollow outer hook briar tooth well and the hollow rod phenomenon that falls of breaking that falls often occurs in actual use, so this instrument belongs to undesirable instrument.In order to solve these difficult problems, by in many ways searching and contrastive feature, determined that finally the employing geologic drilling rod designs processing as outer hook hook body, geologic drilling rod external diameter Φ 50mm, internal diameter Φ 40mm, what material adopted is the G105 steel, and its hardness, rigidity and tensile strength can satisfy the construction needs of salvaging large flat cable considerably beyond hollow rod.
The rotation of need to pressurizeing when salvaging large flat cable, therefore coming off appears in the briar tooth of hook body outside easily, in order to solve this difficult problem, decision improves from process technology, adopt Φ 22mm sucker rod to be slit into briar tooth, first hook is cut circle that there emerged a Φ 22mm with it during welding, briar tooth is bumped in the hook body, adopt again electric welding to process.So easily fall problem of well of briar tooth when having solved rotation.
In order to insert effectively smoothly in the large flat cable, it is hung on the briar tooth, oblique sharp type is processed in hook body bottom, be beneficial to like this insertion of hook body and briar tooth than the cable of depths.It is more top simultaneously briar tooth to be welded the deflection nose part, and when the large flat cable salvaged to the oil pipe top of fish, pump pressure was significantly higher when tiltedly nose part inserted the oil pipe inner chamber, was convenient to like this judge whether the cable on the top of fish of bottom drags for only.
For the ease of with being connected of fishing string, the top connection of hollow outer hook changes into the internal thread oil pipe.
When using this instrument to salvage cable, by the experience in the practical operation, think that forward limit, limit transfers, it is fine to salvage effect during pressurization 10-30kN.In order to confirm whether the cable on the oil pipe top of fish drags for only, when salvaging to the oil pipe top of fish of bottom, can change to judge according to pump pressure, pump pressure has significant change when introducing the oil pipe inner chamber because of the oblique point of hollow outer hook bottom, return the power situation according to reaction torque again and whether both can judge briar tooth to the oil pipe top of fish, again transfer the observation briar tooth after having salvaged and whether can enter the oil pipe inner chamber, thereby confirm whether cable drags for only.
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (6)
1. the electric pump well that seriously shakes out is salvaged sand and is buried the outer hook of cable special hollow, it is characterized in that comprise the hook body and be arranged on the top connection that hook is held with it, described hook is provided with the briar tooth of hook cable with it, and described briar tooth is with it at hook and stretches out obliquely state.
2. the electric pump well that seriously shakes out according to claim 1 is salvaged sand and is buried the outer hook of cable special hollow, it is characterized in that, described briar tooth rear end is embedded in hook body inside and is fixed into one by welding and hook body.
3. the electric pump well that seriously shakes out according to claim 1 is salvaged sand and is buried the outer hook of cable special hollow, it is characterized in that described hook body center is the circulation port of perforation.
4. the electric pump well that seriously shakes out according to claim 1 is salvaged sand and is buried the outer hook of cable special hollow, it is characterized in that, described hook is designed in the lower end be convenient to insert cable around the inclined point shape of bundle.
5. the electric pump well that seriously shakes out according to claim 1 is salvaged sand and is buried the outer hook of cable special hollow, it is characterized in that described top connection is the internal thread oil pipe.
6. the electric pump well that seriously shakes out according to claim 1 is salvaged sand and is buried the outer hook of cable special hollow, it is characterized in that, and described hook body external diameter Φ 50mm, internal diameter Φ 40mm, what material adopted is the G105 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395574 CN202866718U (en) | 2012-08-10 | 2012-08-10 | Hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395574 CN202866718U (en) | 2012-08-10 | 2012-08-10 | Hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866718U true CN202866718U (en) | 2013-04-10 |
Family
ID=48033444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395574 Expired - Fee Related CN202866718U (en) | 2012-08-10 | 2012-08-10 | Hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866718U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033122A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Downhole rope fishing tool for oil wells |
| CN104110229A (en) * | 2014-06-04 | 2014-10-22 | 成都来宝石油设备有限公司 | Claw-type downhole fishhook for petroleum well |
| CN104653139A (en) * | 2013-11-15 | 2015-05-27 | 中国石油天然气股份有限公司 | Tool and method for salvaging electric pump cable |
| CN106481298A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of spiral combination fisher |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
| CN109915055A (en) * | 2019-04-22 | 2019-06-21 | 中国海洋石油集团有限公司 | A kind of grab skipping fishing rope device |
| CN115478804A (en) * | 2021-06-15 | 2022-12-16 | 大庆油田有限责任公司 | Stuck freeing fishing method suitable for electric pump well |
-
2012
- 2012-08-10 CN CN 201220395574 patent/CN202866718U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653139A (en) * | 2013-11-15 | 2015-05-27 | 中国石油天然气股份有限公司 | Tool and method for salvaging electric pump cable |
| CN104033122A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Downhole rope fishing tool for oil wells |
| CN104110229A (en) * | 2014-06-04 | 2014-10-22 | 成都来宝石油设备有限公司 | Claw-type downhole fishhook for petroleum well |
| CN106481298A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of spiral combination fisher |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
| CN109915055A (en) * | 2019-04-22 | 2019-06-21 | 中国海洋石油集团有限公司 | A kind of grab skipping fishing rope device |
| CN115478804A (en) * | 2021-06-15 | 2022-12-16 | 大庆油田有限责任公司 | Stuck freeing fishing method suitable for electric pump well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202866718U (en) | Hollow outer hook special for salvaging cables buried by sand in serious sand flow electric pump wells | |
| CN109667542B (en) | Construction method for drilling anchor cable by multistage segmental discontinuous pipe following in broken stratum | |
| CN101899956B (en) | Method for salvaging electric pump pipe column fish | |
| KR101358569B1 (en) | Midair ground connection steel bar, wrong using ground resistance that domination injection device and midair ground connection steel bar and ground resistance that domination same time laying form of construction work | |
| CN210396684U (en) | Integral returnable large-tonnage integrated overshot | |
| CN204040966U (en) | A kind of drilling sampling device | |
| CN204252904U (en) | Combined fishing device | |
| CN202284458U (en) | Sealed backoff fishing spear | |
| CN210217679U (en) | Small well bore sleeve milling, making and buckling, fishing and well repairing tool | |
| CN104295258A (en) | Novel drifting-wall scraping integrated operating gauge cutter and operating pipe column | |
| CN204457554U (en) | Outer hook | |
| JP4389813B2 (en) | Removal method of buried casing pipe | |
| CN203756101U (en) | Overshot with core-through double sliding blocks | |
| CN202125270U (en) | Safe spear blanking plug | |
| CN202946080U (en) | Guide shoe for fishing tool of logging instrument | |
| CN207161029U (en) | A kind of constructing device of fishing for the drilling rod that fractures | |
| CN210829153U (en) | Combined outer hook | |
| CN204225818U (en) | Novel dredging, scraping wall one operation drift size gauge tool and working string | |
| CN212427488U (en) | Sewage pipeline concrete blocking dredging drill bit and device | |
| JP2014169533A (en) | Soil sampling tube and boring method for the same | |
| RU2453678C1 (en) | Grabbing tool for cable extraction | |
| CN215632865U (en) | Petroleum downhole fishing rope device | |
| CN202788712U (en) | Tool for fishing well wall coring cylinder | |
| CN204457544U (en) | Grind shoe | |
| JP5053462B1 (en) | Auxiliary tool for collecting drainage pipe and method for burying drainage pipe using the same |
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: 20130410 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |