CN212389323U - Open hole fishbone production increasing and sieve tube well completion integrated tool - Google Patents
Open hole fishbone production increasing and sieve tube well completion integrated tool Download PDFInfo
- Publication number
- CN212389323U CN212389323U CN202021645222.6U CN202021645222U CN212389323U CN 212389323 U CN212389323 U CN 212389323U CN 202021645222 U CN202021645222 U CN 202021645222U CN 212389323 U CN212389323 U CN 212389323U
- Authority
- CN
- China
- Prior art keywords
- fishbone
- branch
- sand
- well completion
- open hole
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a marine oil gas resource and sea area natural gas hydrate exploitation equipment's technical field, especially relate to a bore hole fishbone increases production and screen pipe well completion integration instrument, it can realize only needing one trip to bore and just accomplish measures such as reservoir transformation, sand control, production string down, harm is less to the reservoir, has greatly reduced the operating cost, has optimized the construction process, reduces going on of complicated procedure, shortens the activity duration, improves sea area natural gas hydrate exploitation economic technology index, accelerates industrialization process, improves practicality and reliability; the fishbone protective device comprises a fishbone branch short section, a sand blocking medium and an outer protective cover, wherein the sand blocking medium is arranged on the outer wall of the fishbone branch short section.
Description
Technical Field
The utility model relates to a technical field of ocean oil gas resource and sea area natural gas hydrate exploitation equipment especially relates to an open hole fishbone increase in production and screen pipe well completion integration instrument.
Background
As is well known, with the successful implementation of the second round of trial production of the natural gas hydrate in the sea area, China becomes the first world for trial production of the natural gas hydrate in the sea area by adopting a horizontal well drilling and production technology, and an important step is taken in the process of promoting industrialization. The natural gas hydrate resource amount in the sea area of China is huge, but how to give full play to the gas well production energy is a big problem to be faced at present. The purpose of connecting the stratum and the shaft can be achieved by adopting a reservoir production increasing technology, the exposed area of the production layer is increased, the productivity is improved, and meanwhile, an effective sand prevention mode needs to be combined to prevent adverse effects caused by reservoir sand production.
The conventional fracturing and perforating processes have the defects that fracturing fluid is easy to damage reservoirs, a large amount of chemical additives exist in construction fluid, environmental pollution is easy to cause, the construction period is long, a tubular column needs to be pulled out and put down for many times, the operation cost is high, and the like. The multi-branch fishbone open hole well completion technology applies hydraulic rock breaking to form a plurality of branch slim holes in a horizontal well section in a reservoir, the exposed area and the drainage channel of the reservoir are increased, a large number of micro cracks can be formed in an eyelet area due to the hydraulic pressure building effect, more crack systems can be communicated, and the seepage capability near the wellbore can be greatly improved; the gas directly flows into the borehole along the well body in the radial direction, so that the productivity and the recovery rate of the gas well are improved, the jet flow production increasing technology is a typical application mode of the jet flow production increasing technology, technical measures such as casing running, well cementation, perforation, fracturing and the like in conventional operation are replaced, the construction links are reduced, and the operation risk and the operation cost are reduced.
The sand control of the mechanical sieve tube is one of the widely used sand control modes, and the sand control sieve tube is hung right at a production layer position at the bottom of a well, so that the aims of allowing fluid to pass and blocking formation sand are fulfilled. The sand control process of the mechanical sieve tube is simple in technology and convenient to construct, but has the problems that a sand blocking layer is thin, fine sand is easy to invade and block, and the yield cannot reach the expectation. Particularly for a hydrate reservoir with high argillaceous content, the stratum sand production is extremely fine, and the sand blocking performance and the flow performance of the sieve tube cannot be simultaneously considered, so that the reservoir transformation process technology must be combined.
Although the fishbone yield increasing technology is used for oil and gas fields, the application of the fishbone yield increasing technology to hydrate reservoirs is not carried out at present, the conventional storage, modification and sand prevention technology needs to take out and put down a pipe column for multiple times to carry out related program operation, the construction is complex, and the high daily cost of offshore operation still cannot meet the economic requirement of the industrialization effect, so that the storage, modification and sand prevention integrated well completion tool needs to be optimized and innovated to form, thereby greatly shortening the offshore operation time, reducing the operation cost, improving the economic and technical indexes of marine natural gas hydrate exploitation and accelerating the industrialization process.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a can realize only needing one trip to bore and just accomplish measures such as reservoir transformation, sand control, production string down, less to the reservoir injury, greatly reduce the operating cost, optimize the construction process, reduce going on of complicated procedure, shorten the activity duration, improve sea area natural gas hydrate and exploit economic technology index, accelerate industrialization process, improve the open hole fishbone yield increase and the screen pipe completion integration instrument of practicality and reliability.
The utility model discloses an open hole well fishbone increase production and screen pipe well completion integration instrument, including fishbone branch nipple joint, fender sand medium and outer safety cover, keep off the sand medium and install on the outer wall of fishbone branch nipple joint, outer safety cover is installed on the outer wall that keeps off the sand medium, and fishbone branch nipple joint, fender sand medium and outer safety cover are the tubulose.
The utility model discloses an open hole well fishbone increase production and screen pipe well completion integration instrument, install the multiunit bleeder in fishbone branch nipple joint, multicomponent branch pipe one end is sealed to be fixed at the inside power end of fishbone branch nipple joint, and the other end can remove and stretch out to the fishbone branch nipple joint outside according to the design orbit.
The utility model discloses a bore hole fishbone increases production and screen pipe well completion integration instrument, the number of multiunit bleeder can be 3-4.
The utility model discloses an open hole well fishbone increase production and screen pipe well completion integration instrument, fishbone branch nipple joint is different from conventional fishbone bleeder, does not contain the production valve on it, and fishbone branch nipple joint is non-perforated pipe.
The utility model discloses an open hole fishbone increase production and screen pipe well completion integration instrument evenly inlays on fishbone branch nipple joint outer wall and has the multiunit check valve, multiunit check valve all with fishbone branch nipple joint inside intercommunication.
The utility model discloses a barefoot fish bone increases production and screen pipe well completion integration instrument, keep off the sand medium and can be one of multilayer filter screen, metal wool, novel metal foam, gap class material.
The utility model discloses an open hole fishbone increase production and screen pipe well completion integration instrument, the outer safety cover type can be one of bridge type, slot class, wire winding class, accurate compound class.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the fishbone yield increasing technology is combined with the sieve tube sand prevention technology, and two benefits can be achieved only by putting one tool: the fishbone yield increasing technology can realize effective communication to the reservoir, avoids complex processes of hydraulic fracturing, perforation and other storage and improvement measures, reduces damage to the hydrate reservoir and is simpler to construct; the preferable mechanical sand control screen pipe is used for dealing with the condition of fine sand production of hydrate reservoir silt, so that the migration of formation sand can be effectively prevented, and the high efficiency and stable yield of a gas well can be kept.
2) The method can realize the measures of reservoir transformation, sand prevention, production string descending and the like only by one trip of drilling, has small damage to the reservoir, greatly reduces the operation cost, optimizes the construction process, reduces the progress of complex procedures, shortens the operation time, improves the economic and technical indexes of sea area natural gas hydrate exploitation, and accelerates the industrialization process.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic side cross-sectional enlarged structural view of the branched short section of the fishbone in FIG. 1;
in the drawings, the reference numbers: 1. a fishbone branch short section; 2. a sand blocking medium; 3. an outer protective cover; 4. a one-way valve.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 2, the utility model discloses a bore hole fishbone increase production and screen pipe well completion integration instrument, including fishbone branch nipple 1, keep off sand medium 2 and outer safety cover 3, keep off sand medium 2 and install on the outer wall of fishbone branch nipple 1, outer safety cover 3 is installed on the outer wall of keep off sand medium 2, fishbone branch nipple 1, keep off sand medium 2 and outer safety cover 3 are the tubulose; the branch short section 1 of fishbone can support sand-blocking medium 2 and outer protective cover 3 as the base pipe, and sand-blocking medium 2 can block formation sand, prevents that it from getting into the inside of branch short section 1 of fishbone and in the pit shaft, and outer protective cover 3 can play the effect of fluid water conservancy diversion, conveniently protects sand-blocking medium 2, slows down grit erosion equipment simultaneously.
The utility model discloses an open hole well fishbone increase production and screen pipe well completion integration instrument, install the multiunit bleeder in fishbone branch nipple joint 1, the sealed power end of fixing in fishbone branch nipple joint 1 of multicomponent branch pipe one end, the other end can remove and stretch out to the fishbone branch nipple joint 1 outside according to the design orbit.
The utility model discloses a bore hole fishbone increases production and screen pipe well completion integration instrument, the number of multiunit bleeder can be 3-4.
The utility model discloses a bore hole fishbone increase production and screen pipe well completion integration instrument, fishbone branch nipple joint 1 is different from conventional fishbone bleeder, does not contain the production valve on it, and fishbone branch nipple joint 1 is non-perforated pipe.
The utility model discloses an open hole well fishbone increase production and screen pipe well completion integration instrument evenly inlays on 1 outer wall of fishbone branch nipple joint and has multiunit check valve 4, multiunit check valve 4 all with 1 inside intercommunication of fishbone branch nipple joint.
The utility model discloses a bore hole fishbone increase production and screen pipe well completion integration instrument, keep off sand medium 2 and can be one of multilayer filter screen, metal wool, novel metal foam, gap class material.
The utility model discloses a bore hole fishbone increase production and screen pipe well completion integration instrument, 3 types of outer safety cover can be one of bridge type, slot class, wire winding class, accurate compound class.
The utility model discloses a barefoot well fishbone increase production and screen pipe well completion integration instrument, every 90 of 1 surface of fishbone branch nipple joint are a direction, divide into four groups altogether, and every group can set up 4-6 check valves 4.
The utility model relates to an open hole fishbone production increasing and sieve tube well completion integrated tool, which is characterized in that when in work, splicing a plurality of groups of equipment end to form a tube bundle, putting the tube bundle into a shaft to reach a specified depth, pumping high-pressure fluid into the tube bundle from the top end of the tube bundle, enabling the high-pressure fluid to enter the fishbone branch short section 1 and push a plurality of groups of branch pipes on the fishbone branch short section to move according to a set track and extend into the stratum outside the fishbone branch short section 1, blocking the fluid in the fishbone branch short section 1 by a plurality of groups of one-way valves 4 to prevent the fluid from flowing into the stratum through a sand blocking medium 2 and an outer protective cover 3, finishing the putting work of the tube bundle after the movement and extension of the branch pipes are finished, and during subsequent production, formation fluid enters the one-way valve 4 through an annular gap between the fishbone branch nipple 1 and the sand blocking medium 2, then enters the nipple 1 and is produced to the ground.
The utility model discloses the main function who realizes does: the tool can realize the measures of reservoir transformation, sand prevention, production string descending and the like only by one trip of drilling, has small damage to the reservoir, greatly reduces the operation cost, optimizes the construction process, reduces the progress of complex procedures, shortens the operation time, improves the economic and technical indexes of sea area natural gas hydrate exploitation, and accelerates the industrialization process.
The utility model discloses a barefoot fishbone increase production and screen pipe well completion integration instrument, its mounting means, connected mode or the mode of setting up are common mechanical type, as long as can reach all can implement of its beneficial effect.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a barefoot well fishbone increase production and screen pipe well completion integration instrument, its characterized in that, fishbone branch nipple joint (1), keep off sand medium (2) and outer safety cover (3), keep off sand medium (2) and install on the outer wall of fishbone branch nipple joint (1), outer safety cover (3) are installed on the outer wall of keeping off sand medium (2), fishbone branch nipple joint (1), keep off sand medium (2) and outer safety cover (3) are the tubulose.
2. The open hole fishbone stimulation and screen pipe well completion integrated tool according to claim 1, characterized in that a plurality of groups of branch pipes are installed in the fishbone branch pup joint (1), one end of each group of branch pipes is hermetically fixed at a power end in the fishbone branch pup joint (1), and the other end of each group of branch pipes can move according to a designed track and extend out of the fishbone branch pup joint (1).
3. The tool of claim 2, wherein the number of the plurality of groups of branch pipes is 3-4.
4. The open hole fishbone stimulation and screen well completion integrated tool of claim 1, characterized in that the fishbone branch sub (1) is different from a conventional fishbone branch pipe, and does not comprise a production valve thereon, and the fishbone branch sub (1) is a non-perforated pipe.
5. The open hole fishbone production-increasing and screen pipe well completion integrated tool of claim 1, characterized in that a plurality of sets of check valves (4) are uniformly embedded on the outer wall of the fishbone branch short section (1), and the plurality of sets of check valves (4) are communicated with the interior of the fishbone branch short section (1).
6. The tool of claim 1, wherein the sand blocking medium (2) is one of a multi-layer filter screen, metal wool, novel metal foam and gap materials.
7. An open hole fishbone stimulation and screen completion integrated tool as claimed in claim 1, characterized in that the outer protective cover (3) is of the type of bridge, slotted, wire-wound, precision-composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021645222.6U CN212389323U (en) | 2020-08-10 | 2020-08-10 | Open hole fishbone production increasing and sieve tube well completion integrated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021645222.6U CN212389323U (en) | 2020-08-10 | 2020-08-10 | Open hole fishbone production increasing and sieve tube well completion integrated tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212389323U true CN212389323U (en) | 2021-01-22 |
Family
ID=74253649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021645222.6U Active CN212389323U (en) | 2020-08-10 | 2020-08-10 | Open hole fishbone production increasing and sieve tube well completion integrated tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212389323U (en) |
-
2020
- 2020-08-10 CN CN202021645222.6U patent/CN212389323U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6694549B2 (en) | Silty marine natural gas hydrate gravel vomit mining method and mining equipment | |
| CN110397428B (en) | Displacement coalbed methane yield increasing method for coalbed methane jointly mined by vertical well and U-shaped butt well | |
| CN100562645C (en) | High pressure water jet-flow deep penetrating perforating and auxiliary crushing method and device thereof | |
| CN102733789B (en) | Staged fracturing construction yield increment method for waterpower in deep thickened oil deposit thick-bedded sandstone storage layer | |
| CA1081608A (en) | Selective wellbore isolation using buoyant ball sealers | |
| CN106223922A (en) | Staged fracturing technique is blocked up in the seam inner shield of shale gas horizontal well proppant temporarily | |
| CN112253070B (en) | Method for sectional seam making, coal washing and outburst elimination of thick coal seam top-bottom linkage horizontal well | |
| CN111827948A (en) | Open hole fishbone production increasing and sieve tube well completion integrated tool | |
| CN112343560A (en) | Fracturing and sand prevention combined process method for exploiting low-permeability reservoir natural gas hydrate | |
| CN112253071A (en) | Design method for pretreatment, blockage removal and capacity increase fracturing of compact sandstone reservoir | |
| CN114135265B (en) | Low-cost and high-efficiency transformation process method for low-permeability reservoir of offshore oil field | |
| RU2466271C1 (en) | Thermal production of bitumen oil from shallow beds by cavities of higher permeability | |
| CN111764871A (en) | Natural gas hydrate reservoir direct-increasing horizontal mining method | |
| CN111411915A (en) | Downhole variable-diameter type layered structure sealing device and method | |
| CN212389323U (en) | Open hole fishbone production increasing and sieve tube well completion integrated tool | |
| CN203960941U (en) | A kind of artesian water water intake well | |
| US4359092A (en) | Method and apparatus for natural gas and thermal energy production from aquifers | |
| RU2616052C1 (en) | Method development of shaly carbonate oil pays | |
| RU2524800C1 (en) | Development of inhomogeneous deposit by inclined and horizontal wells | |
| RU2510456C2 (en) | Formation method of vertically directed fracture at hydraulic fracturing of productive formation | |
| RU2170340C1 (en) | Process of exploitation of oil field | |
| CN111827946B (en) | Naked fish bone spur yield increasing and screen pipe well completion construction process | |
| RU2613403C1 (en) | Method for hydraulic fracturing of formation in horizontal shaft of well | |
| CN111322054B (en) | Three-three combined excavation and potential optimization mining method for sandstone oil reservoir in chemical flooding stage | |
| CN113356824A (en) | Integral development method for adjacent coal seam horizontal well in multi-coal seam development area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |