CN201778772U - Slim hole sidetracking well clamp sealing fracturing string - Google Patents
Slim hole sidetracking well clamp sealing fracturing string Download PDFInfo
- Publication number
- CN201778772U CN201778772U CN2010202754922U CN201020275492U CN201778772U CN 201778772 U CN201778772 U CN 201778772U CN 2010202754922 U CN2010202754922 U CN 2010202754922U CN 201020275492 U CN201020275492 U CN 201020275492U CN 201778772 U CN201778772 U CN 201778772U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- pipe
- oil
- slim
- packer
- 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 - Lifetime
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a slim hole sidetracking well clamp sealing fracturing string, which is applied to oil field well completion slim hole fracturing. An oil pipe is arranged in an oil layer sleeve pipe, the lower end of the oil pipe is connected with a hydraulic anchor, a reverse flushing circulation valve is connected with the lower end of the hydraulic anchor, the lower end of the reverse flushing circulation valve is connected with a connecting pipe nipple, the end of the connecting pipe nipple is connected with a packer, a sleeve pipe suspending device is suspended at the lower end of the oil layer sleeve pipe, the lower part of the sleeve pipe suspending device is connected with a sleeve pipe, the sleeve pipe passes through the fracturing target layer, and an artificial well bottom is arranged at the bottom part of the sleeve pipe. The utility model has the advantages that the fracturing can be implemented to slim hole oil wells, the reserves exploitation degree of the slim hole oil wells can be improved, and the string can meet the one-step sand adding requirements.
Description
Technical field
The utility model relates to the oilfield pressing crack construction, particularly a kind of slim-hole sidetracked hole card envelope fracturing string of completion slim-hole pressure break.
Background technology
At present, along with oil field development is goed deep into, slim-hole sidetracking quantity constantly increases.Considering from economical with materials consumption and satisfied pump mechanical oil recovery two aspects down, generally is to adopt the 118mm drill bit to get out well in the 139.7mm sleeve pipe; Then, adopt the tail tube hanging structure, following 89mm casing cementing, perforation completion.But, can only directly descend pump to go into operation because 89mm casing inner diameter smaller (76mm) does not have card envelope fracturing string and satisfies the site operation demand; Do not reach the slim-hole oil well of the economic exploitation index for output, lack effective modification measures, can only closing well or open, have a strong impact on the slim hole well implementation result.
The utility model content
The purpose of this utility model is: a kind of slim-hole sidetracked hole card envelope fracturing string is provided, and protection hanger and upper sleeve, latus rectum satisfies discharge capacity and requires, reaches the requirement of once going into well sand amount and high sand ratio in being fit to again simultaneously.
The technical solution adopted in the utility model is: slim-hole sidetracked hole card envelope fracturing string, mainly by oil pipe, hydraulic anchor, the backwash cycles valve, connect pipe nipple, casing hanger and packer are formed, oil pipe is arranged in production string, connect hydraulic anchor in the oil pipe lower end, it is characterized in that: connect the backwash cycles valve in the hydraulic anchor lower end, backwash cycles valve lower end connects one and connects pipe nipple, connect the pipe nipple lower end and connect packer, the production string lower end is hung with casing hanger, the casing hanger bottom is connected with sleeve pipe, sleeve pipe passes the pressure break target zone, in the bottom of sleeve pipe the artificial bottom of a well is arranged.Packer is in the sleeve pipe of casing hanger bottom, and packer is on the top of pressure break target zone.
The beneficial effects of the utility model: the utility model slim-hole sidetracked hole card envelope fracturing string, can implement pressure break to the slim-hole oil well, improved slim-hole oil well reserves development degree, the external diameter≤70mm of supporting core instrument, withstand voltage poor 75MPa, tubing string can satisfy and once add sand 60m
3, satisfy the 89mm sleeve pipe slim-hole fracturing technique demand of high sand ratio 60%.
Description of drawings
Fig. 1 is the utility model slim-hole sidetracked hole card envelope fracturing string structural profile schematic diagram.
Among the figure, 1. oil pipe, 2. production string, 3. hydraulic anchor, 4. the backwash cycles valve 5. connects pipe nipple, 6. casing hanger, 7. packer, 8. artificial bottom of a well.
The specific embodiment
Embodiment 1: with a slim-hole sidetracked hole card envelope fracturing string is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model slim-hole sidetracked hole card envelope fracturing string mainly is made up of oil pipe 1, production string 2, hydraulic anchor 3, backwash cycles valve 4, connection pipe nipple 5, casing hanger 6, packer 7 and artificial bottom of a well 8.
Claims (2)
1. a slim-hole sidetracked hole card seals fracturing string, mainly by oil pipe (1), hydraulic anchor (3), backwash cycles valve (4), connect pipe nipple (5), casing hanger (6) and packer (7) are formed, oil pipe (1) is arranged in production string (2), connect hydraulic anchor (3) in oil pipe (1) lower end, it is characterized in that: connect backwash cycles valve (4) in hydraulic anchor (3) lower end, backwash cycles valve (4) lower end connects one and connects pipe nipple (5), connect pipe nipple (5) lower end and connect packer (7), production string (2) lower end is hung with casing hanger (6), casing hanger (6) bottom is connected with sleeve pipe, sleeve pipe passes the pressure break target zone, and artificial bottom of a well (8) is arranged in the bottom of sleeve pipe.
2. slim-hole sidetracked hole card envelope fracturing string as claimed in claim 1, it is characterized in that: packer (7) is in the sleeve pipe of casing hanger (6) bottom, and packer (7) is on the top of pressure break target zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202754922U CN201778772U (en) | 2010-07-28 | 2010-07-28 | Slim hole sidetracking well clamp sealing fracturing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202754922U CN201778772U (en) | 2010-07-28 | 2010-07-28 | Slim hole sidetracking well clamp sealing fracturing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778772U true CN201778772U (en) | 2011-03-30 |
Family
ID=43791985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202754922U Expired - Lifetime CN201778772U (en) | 2010-07-28 | 2010-07-28 | Slim hole sidetracking well clamp sealing fracturing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778772U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223917A (en) * | 2016-08-01 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of side tracked slim hole layered fracturing pipe string and method |
| CN112267866A (en) * | 2020-11-05 | 2021-01-26 | 中国石油天然气股份有限公司 | Small-diameter pipe staged fracturing production pipe column and method for side drilling well and small-hole well |
| CN112943161A (en) * | 2021-01-14 | 2021-06-11 | 中国石油天然气股份有限公司 | Side drilling is exempted from to hang and can be lost hand well cementation well completion device |
-
2010
- 2010-07-28 CN CN2010202754922U patent/CN201778772U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223917A (en) * | 2016-08-01 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of side tracked slim hole layered fracturing pipe string and method |
| CN106223917B (en) * | 2016-08-01 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of side tracked slim hole layered fracturing pipe string and method |
| CN112267866A (en) * | 2020-11-05 | 2021-01-26 | 中国石油天然气股份有限公司 | Small-diameter pipe staged fracturing production pipe column and method for side drilling well and small-hole well |
| CN112267866B (en) * | 2020-11-05 | 2022-11-04 | 中国石油天然气股份有限公司 | Small-diameter pipe staged fracturing production pipe column and method for side drilling well and small-hole well |
| CN112943161A (en) * | 2021-01-14 | 2021-06-11 | 中国石油天然气股份有限公司 | Side drilling is exempted from to hang and can be lost hand well cementation well completion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101787854B (en) | Subsection well completion system of bottom water reservoir horizontal well | |
| CN201705219U (en) | Lateral drilling gravel pack completion string | |
| CN105507865A (en) | Re-fracturing method for oil, gas and water wells | |
| CN207093047U (en) | A kind of negative pressure gas-lift production tubing string | |
| CN201843600U (en) | SAGD (Steam Assisted Gravity Drainage) mechanical lifting circulating preheating equipment | |
| CN204703876U (en) | A kind of bridge-type concentric separated-injection tubing string | |
| CN204941480U (en) | The horizontal well completion sleeve pipe of segmentation exploitation and the tubing string of formation thereof can be realized | |
| CN102434192A (en) | Device and method for enhancing coal seam fracturing effect | |
| CN201778772U (en) | Slim hole sidetracking well clamp sealing fracturing string | |
| CN105443101B (en) | A kind of double envelope single deck tape-recorder staged fracturing technology tube pillars of compression and its fracturing process | |
| CN202152670U (en) | Sectioned construction pipe column of horizontal well | |
| CN202531037U (en) | Segregated completion tubular column of bottom water tight gas reservoir horizontal well | |
| CN201620785U (en) | Pressure-controlled hydraulic pushing tool | |
| CN202659194U (en) | Novel well wall restoring device with combined sleeve and corrugated pipe | |
| CN201292800Y (en) | Six-grade branch well window sealing mechanism | |
| CN201943649U (en) | High pressure fracture long glue cylinder packer | |
| CN105317394A (en) | High-temperature-resistant and high-pressure-bearing packer special for oil drilling | |
| CN201196059Y (en) | Oil well cementing system | |
| CN205297515U (en) | Coiled tubing drags hydraulic jet fracturing device | |
| CN202215193U (en) | Water-swelling self-sealing type packer | |
| CN2758455Y (en) | Expanding tool of expandable pipe for use in petroleum engineering | |
| CN204186370U (en) | Sliding sleeve of bushing sequential production staged fracturing tool tubing string | |
| CN201225121Y (en) | Oil gas well selective completion tool | |
| CN103470233A (en) | Heavy oil reservoir natural gas huff-and-puff oil production process system and oil production method | |
| CN201074586Y (en) | Combination of tubular pile and rod pile for deep pumping in oil pumping well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |