CN204804806U - A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing - Google Patents
A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing Download PDFInfo
- Publication number
- CN204804806U CN204804806U CN201520328071.4U CN201520328071U CN204804806U CN 204804806 U CN204804806 U CN 204804806U CN 201520328071 U CN201520328071 U CN 201520328071U CN 204804806 U CN204804806 U CN 204804806U
- Authority
- CN
- China
- Prior art keywords
- spray gun
- eccentric
- horizontal well
- eccentric rotary
- outer casing
- 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
Abstract
The utility model provides an automatic directional hydraulic jet fracturing instrument for horizontal well fracturing, wherein, the top connection lower extreme with the instrument shell is connected, the left side of the inside boss of instrument shell is provided with eccentric interior body, adopt threaded connection in eccentric between body and the eccentric rotation spray gun, boss and the middle footstep bearing that sets up of eccentric interior body, the inside boss right side of instrument shell is provided with the eccentric rotation spray gun, set up journal bearing between eccentric rotation spray gun and the instrument shell, the position that is close to right -hand member portion on the eccentric rotation spray gun sets up porosely, and the nozzle places that this is downthehole in, the right -hand member portion of eccentric rotation spray gun is arranged in to the lower clutch, the lower clutch is used for connecting other facilities. The utility model discloses a making spray gun free rotation in the shell of eccentric balance weight, realizing the water conservancy spray gun and follow the horizontal direction all the time, can realize independently in the horizontal well that the injection is directional, guarantee sandblast efflux sprays to fixed direction, plays fine control action to oil sheet transformation, the transformation of two horizontal well fracturing.
Description
Technical field
The utility model relates to the manufacturing technology application of oil and gas well drilling equipment, is specially a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, belongs to drilling technology field.
Background technology
The end of the nineties is hydraulic jetting fracturing technology grow up, and is also foreign applications technology more widely, is the product that hydraulic perforation technology and fracturing technique combine.This technology utilizes high speed abradant jet to form duct in the earth formation and then build the pressure to produce the advanced technology in crack.The advance of this technology is:
1) hydraulic perforation overcomes the compaction band of near wellbore zone pollution and conventional artillery perforation, and under jet action, top, duct, stratum forms microcrack;
2) jet flow pressurizing realizes fixed-point booster, reduces to produce multiple cracking and crack Steering, has waterpower packing effect simultaneously, is applicable to old filed and the not good Oil/gas Well of cementing quality;
3) the simple constructability of spraycan structure, double pump enters the fluid pressure that system can change rapidly shaft bottom, effectively solves the problems such as fracturing fluid excessive concentration, in advance sand plug.
Existing hydraulic jetting fracturing instrument mainly contains following shortcoming:
1) in the thin oil reservoir fracturing process of horizontal well, because oil reservoir is thinner, conventional spiral perforation easily causes crack to prolong above-below direction extension fast, causes crack to pass cap rock;
2) direction of nozzle water flow ejection of the prior art is all horizontal direction, and can not adjust, eyelet direction, biggest principal stress direction and crack initial crack initiation direction is all inconsistent, and fracturing effect is bad.
For solving above technical problem, the utility model provides a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, by bearing, the spray gun of eccentrically mounted weight is freely rotated in the enclosure, not by the azimuthal influence of shell, realize waterpower spray gun all the time in the horizontal direction, this instrument independently can realize spraying orientation in horizontal well, can ensure that blasting jet sprays to fixed-direction, and this direction is generally biggest principal stress direction.This technology can play good control action to oil sheet transformation, dual horizontal well fracturing reform.
Summary of the invention
For above-mentioned situation, for solving the defect of prior art, the object of the utility model just there is provided a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, it comprises top connection, tool outer casing, thrust bearing, journal bearing, eccentric interior tube body, eccentric rotary spray gun, pressure tube, friction plate, nozzle, lower contact, it is characterized in that, described top connection upper end is connected with high pressure line; Described top connection lower end is connected with described tool outer casing; Described tool outer casing inside is provided with boss; The left side of described tool outer casing internal boss is provided with described eccentric interior tube body; Adopt between described eccentric interior tube body with described eccentric rotary spray gun and be threaded; In the middle of described boss and eccentric interior tube body, thrust bearing is set; Eccentric rotary spray gun is provided with on the right side of the boss of described tool outer casing inside; Between described eccentric rotary spray gun and described tool outer casing, journal bearing is set; Position near right part on described eccentric rotary spray gun is drilled with the hole with certain angle, and described nozzle is placed in this hole; Described lower contact is placed in the right part of described eccentric rotary spray gun; Described lower contact is for connecting other facilities.
Further, as preferably, described tool housing and eccentric rotary spray gun adopt the material of two kinds of different densities to make, and upper semi-circle is different from the density of material of lower half circle.
Further, as preferably, the angle angle of described nozzle and described tool outer casing is 0-45 degree, and the diameter of each nozzle is 2.5-12 millimeter.
Further, as preferably, described journal bearing is two.
Further, as preferably, described eccentric rotary spray gun is provided with the radial pressure tube arranged, described pressure tube is connected with friction plate, and described friction plate is arranged between described interior tool housing surface and described eccentric rotary lance outer surface.
The beneficial effects of the utility model:
A kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well that the utility model provides, by bearing, the spray gun of eccentrically mounted weight is freely rotated in the enclosure, not by the azimuthal influence of shell, realize waterpower spray gun all the time in the horizontal direction, this instrument independently can realize spraying orientation in horizontal well, can ensure that blasting jet sprays to fixed-direction, good control action is played to oil sheet transformation, dual horizontal well fracturing reform.
Accompanying drawing explanation
The structure chart of a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well that Fig. 1 provides for the utility model;
Wherein, 1, top connection, 2, tool outer casing, 3, eccentric interior tube body, 4, thrust bearing, 5, eccentric rotary spray gun, 6, journal bearing, 7, nozzle, 8, lower contact, 9, boss, 10, pressure tube, 11, friction plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the utility model provides a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, it comprises top connection 1, tool outer casing 2, thrust bearing 4, journal bearing 6, eccentric interior tube body 3, eccentric rotary spray gun 5, pressure tube 10, friction plate 11, nozzle 7, lower contact 8, and top connection 1 upper end is connected with high pressure line; Described top connection lower end is connected with described tool outer casing 2; Tool outer casing inside is provided with boss 9; The left side of described tool outer casing internal boss 9 is provided with described eccentric interior tube body 3; Eccentric interior tube body 3 is threaded with adopting between described eccentric rotary spray gun 5; In the middle of described boss 9 and eccentric interior tube body 3, thrust bearing 4 is set; Eccentric rotary spray gun 5 is provided with on the right side of the boss of tool outer casing inside; Journal bearing 6 is set between eccentric rotary spray gun 5 and tool outer casing 2; Position near right part on eccentric rotary spray gun 5 is drilled with the hole with certain angle, and nozzle 7 is placed in this hole; Described lower contact 8 is placed in the right part of described eccentric rotary spray gun 5; Lower contact 8 is for connecting other facilities.
In the present embodiment, tool housing 2 and eccentric rotary spray gun 5 adopt the material of two kinds of different densities to make, upper semi-circle is different from the density of material of lower half circle, and the angle angle of described nozzle and described tool outer casing is 0-45 degree, and the diameter of each nozzle is 2.5-12 millimeter.Wherein, journal bearing 6 is two.Eccentric rotary spray gun 5 is provided with the radial pressure tube 10 arranged, described pressure tube 10 is connected with friction plate 11, and described friction plate 11 is arranged between described tool outer casing 2 inner surface and described eccentric rotary spray gun 5 external surface.
The utility model independently can realize spraying orientation in horizontal well, can ensure that blasting jet sprays to fixed-direction, good control action is played to oil sheet transformation, dual horizontal well fracturing reform, it makes the spray gun of eccentrically mounted weight freely rotate in the enclosure by bearing, not by the azimuthal influence of shell, achieve waterpower spray gun all the time in the horizontal direction.
Claims (6)
1. the automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well, it comprises top connection, tool outer casing, thrust bearing, journal bearing, eccentric interior tube body, eccentric rotary spray gun, pressure tube, friction plate, nozzle, lower contact, it is characterized in that, described top connection upper end is connected with high pressure line; Described top connection lower end is connected with described tool outer casing; Described tool outer casing inside is provided with boss; The left side of described tool outer casing internal boss is provided with described eccentric interior tube body; Adopt between described eccentric interior tube body with described eccentric rotary spray gun and be threaded; In the middle of described boss and eccentric interior tube body, thrust bearing is set; Eccentric rotary spray gun is provided with on the right side of the boss of described tool outer casing inside.
2. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, is characterized in that arranging journal bearing between described eccentric rotary spray gun and described tool outer casing; Described eccentric rotary spray gun is drilled with near the position of right part and has hole, described nozzle is placed in this hole; Described lower contact is placed in the right part of described eccentric rotary spray gun; Described lower contact is for connecting other facilities.
3. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, described tool housing and eccentric rotary spray gun adopt the material of two kinds of different densities to make, and upper semi-circle is different from the density of material of lower half circle.
4. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, the angle angle of described nozzle and described tool outer casing is 0-45 degree, and the diameter of each nozzle is 2.5-12 millimeter.
5. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, described journal bearing is two.
6. a kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well according to claim 1, it is characterized in that, described eccentric rotary spray gun is provided with the radial pressure tube arranged, described pressure tube is connected with friction plate, and described friction plate is arranged between described interior tool housing surface and described eccentric rotary lance outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328071.4U CN204804806U (en) | 2015-05-20 | 2015-05-20 | A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328071.4U CN204804806U (en) | 2015-05-20 | 2015-05-20 | A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804806U true CN204804806U (en) | 2015-11-25 |
Family
ID=54589648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328071.4U Active CN204804806U (en) | 2015-05-20 | 2015-05-20 | A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204804806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912534A (en) * | 2015-05-20 | 2015-09-16 | 徐梓辰 | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well |
| CN107288588A (en) * | 2017-08-15 | 2017-10-24 | 中国石油化工股份有限公司 | Abrasive perforating instrument |
-
2015
- 2015-05-20 CN CN201520328071.4U patent/CN204804806U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912534A (en) * | 2015-05-20 | 2015-09-16 | 徐梓辰 | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well |
| CN107288588A (en) * | 2017-08-15 | 2017-10-24 | 中国石油化工股份有限公司 | Abrasive perforating instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104912534A (en) | Automatic orientation hydraulic jetting fracturing tool for fracturing of horizontal well | |
| CN108547601B (en) | Hydraulic directional spray gun for horizontal well | |
| CN204098878U (en) | Device made by a kind of abrasive material perforation sandblasting pressure break connection | |
| CN111577234B (en) | Pulse horizontal well volume fracturing device and horizontal well volume fracturing method | |
| CN202325440U (en) | Ball seat type ejector | |
| CN204024491U (en) | For the spinning jet bit of radially horizontal well | |
| CN204804806U (en) | A automatic directional hydraulic jet fracturing instrument for horizontal well fracturing | |
| CN103993863B (en) | The non-mixed phase air water of low-permeability oil deposit is handed over note fluctuation step-down augmented injection device and method | |
| CN106703774B (en) | Drawing type hydraulic jetting fracturing and pitching sliding sleeve sand washing connection make device and method | |
| CN212508243U (en) | Pulse horizontal well volume fracturing tool string | |
| CN102505683A (en) | Drilling tool for two-way soil-cement mixed pile | |
| CN106194029B (en) | Rock burst drilling rig and rock breaking method based on booster | |
| CN102287136B (en) | Hydraulic jetting drilling-well shower nozzle | |
| CN205990902U (en) | A kind of orientation hydraulic jet perforation instrument | |
| CN106285606B (en) | A kind of double cluster hydraulic jetting fracturing tubing strings of rotatable nozzle-type and fracturing process | |
| CN203175505U (en) | Directional hydraulic ejector and tubular column thereof | |
| CN201367891Y (en) | Ejecting and acidifying tool for oil-gas well | |
| CN203271694U (en) | Embedded integral type waterpower abrasive blasting perforator | |
| CN106351617A (en) | Rotatable nozzle type double-spiral hydraulic ejector and application | |
| CN105903586A (en) | Combined type double jet flow nozzle | |
| CN104153744B (en) | Pore type geothermal well jet well-flushing device and method for jetting well-flushing by using same | |
| CN110552676A (en) | sliding sleeve type multi-layer fracturing sand blower | |
| CN205477555U (en) | Nearly well ground tape processing unit based on rotating particle sprays | |
| CN206053916U (en) | Sleeve type spray gun | |
| CN203081308U (en) | Diamond drill bit reducing nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |