CN104863552A - Hydraulic orienting device for horizontal well - Google Patents
Hydraulic orienting device for horizontal well Download PDFInfo
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- CN104863552A CN104863552A CN201510227401.5A CN201510227401A CN104863552A CN 104863552 A CN104863552 A CN 104863552A CN 201510227401 A CN201510227401 A CN 201510227401A CN 104863552 A CN104863552 A CN 104863552A
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- horizontal well
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Abstract
The invention relates to a hydraulic orienting device for a horizontal well.The basic working principle is described in that a small steel ball with high density capable of freely rolling along a circumferential direction is arranged in the interior of a joint. With gravitational direction of the small ball constant, an indicate direction is provided for rotation of a perforating device under the well. When a high-pressure fluid is pumped into the shaft, joint rotation and orientation are finished at the same time. The orienting joint is capable of effectively positioning a complicated well bottom of the horizontal well with high reliability and has a simple structure and is easily prompted. The horizontal well does not have the problem of hydraulic oriented perforating. Therefore, the purpose of oriented perforating for oil reservoir is fulfilled.
Description
Technical field
The present invention relates to oil and gas exploitation field, is a kind of New Horizontal Well hydraulic directional instrument.
Background technology
Perforation completion is the completion method that oil gas field is conventional.Hydraulic jet perforation due to its eye diameter and hole depth comparatively large and compaction band can not be produced at eyelet wall, to improve payzone particularly Low permeable oil and gas reservoirs degree of perfection, to improve drainage area very effective.For the Oil/gas Well containing water layer, usually to avoid perforation near water layer, in order to avoid borehole may directly link up water layer, cause producing well to shift to an earlier date water breakthrough and " water logging " oil reservoir, cause production declining even to stop production.Address this problem than being easier in straight well, according to well-log information determination water layer position, but in horizontal well, when well track distance pushes up water or water water layer is nearer at the end, just need control perforation keep horizontal direction, and the circumferencial direction of routine be uniformly distributed perforation exist penetrate the risk of wearing water layer.Therefore, the eyelet direction controlling hydraulic jet perforation is necessary.
Oriented approach at present during domestic and international horizontal well perforation mainly contains:
Gravity eccentricity device is adopted to coordinate the method for swivel.This technology is domestic use technology more widely.Utilize the principle location vertically downward, direction of eccentricity balance-weight block under Action of Gravity Field, regulating the angle of perforating gun and eccentricity balance-weight block on ground, is just design orientation to make the perforating system direction in lower going-into-well.Perforating system is rotated about axis by eccentric gravity, and when resultant couple is zero, eccentric locater reaches stable state.But this method is to following parameter, as the friction factor etc. of device and the dimensional fits of sleeve pipe, the length of device and weight, fin height, device and sleeve pipe, require higher; The frictional couple of device two ends swivel joint, requires that hole angle is greater than 25 °, if hole angle is little, then the torsion that provides of eccentricity balance-weight block is little, does not have orientation.Adopt tubing transmission long construction period, labour intensity is large; Be full of liquid in horizontal well, the rotation of device can be subject to larger resistance, is not easy to realize accurate location.
Cable transmission directional technology.This technology is first by cable, and under perforating site, enter the locator with directional bond, locator sets.Then enter down gyrocompassing instrument and measure locator directional bond position.On the ground by regulating the position of perforating system top nozzle or perforating gun and gathering sill.When gathering sill docks with directional bond, perforating gun is in and requires position.Although the method accurate positioning, when horizontal well horizontal segment is longer, by cable, locator and gyro analyzer cannot be lowered into precalculated position; Gyrolevel cannot measure the orientation of directional bond at horizontal level; Cannot take out after locator sets, can not reuse.In addition, when needing multiple bearing, then need repeatedly to remove instrument, efficiency of construction is lower.
The G-Force directional technology of Halliburton.Its principle carries out control azimuth by the conical gyroscope of the gravity in annular seal space.After device arrives predetermined well section, conical gyroscope is automatically determined orientation and is pointed to the earth's core, now drives bottom perforating gun to rotate to the orientation designed in advance.But the method still provides the power of rotation by the gravity of gyro, when well internal resistance is larger, cannot guarantee to rotate to accurate location.
For solving orientation problem during horizontal well hydraulic jet perforation, the present invention devises a kind of New Horizontal Well hydraulic directional device.
Summary of the invention
The object of this invention is to provide a kind of instrument of horizontal well hydraulic directional, to realize the accurate pointing of the eyelet when net horizontal section implements hydraulic jet perforation.
For this reason, the present invention proposes, and by hydraulic perforating technology and directional bond combine with technique, after pumping into high-pressure fluid, makes perforation nozzle accurately rotate to predetermined direction.It is characterized in that:
The present invention installs an orientation joint between perforating system and oil pipe, to change the direction of perforation nozzle.Have in joint inside one can circumferentially free rolling high density steelie, rear end is a rotating guide shoe, and guide shoe and directed pawl overlap the moment produced in contact process and drive perforating system to rotate.Guide shoe top has gathering sill, and gathering sill is the groove that width and cat's paw are equal.After lower entrance aperture device, due to gravity, little club is in state bottom.Bead immobilizes by the direction of gravity, is so just that the rotation of perforating system provides direction indication in down-hole.Carry out the incipient stage of hydraulic perforating, in well, pump into high-pressure fluid.High-pressure fluid driving pawl cover and guide shoe are to end motion under oil pipe.Under the restriction of directional bolt, bead is made to form the projection being equivalent to directional bond bottom.When the gathering sill of guide shoe is consistent with directional bond direction, rotates and stop, perforation nozzle is accurately rotated to and requires position.After perforation terminates, orientation joint can be made to return to original state by release, mobile hydraulic jet perforation setting position, repeat operation.
This instrument in conjunction with the advantage of waterpower perforating technology and directional bond technology is:
1) gravity is utilized to carry out perpendicular positioning.Accurately direction can be determined, for the rotation location of perforating system provides reference under force environment complicated in well.
2) fluid pressure when making full use of hydraulic perforating in tubing string.Can ensure that oriented perforating device produces larger moment of torsion, perforating system is moved and rotates.
3) device is ingenious, simple structure.Be convenient to install and use, unfailing performance is higher.
4) can realize repeatedly resetting perforation by oil pipe next time, efficiency of construction is high.
Accompanying drawing explanation
The following drawings schematically illustrates the present invention and explains, not delimit the scope of the invention.
Fig. 1 horizontal well orientation joint off working state (without pressure, contraction state) schematic diagram
Fig. 2 horizontal well orientation joint duty (having pressure, the directed state of elongation level) schematic diagram
Fig. 3 horizontal well orientation joint duty cross sectional representation
Fig. 4 draws oblique schematic diagram
Reference numeral illustrates:
1, top connection; 2, core pipe; 3, hold-down screw; 4, guide shoe; 5, cylindrical shell; 6, stage clip 1; 7, directed steel ball; 8, directed pawl cover; 9, seal 1; 10, seal 2; 11, directional bolt; 12, stage clip 2; 13, seal 3; 14, seal receptacle; 15, lower contact
Detailed description of the invention
Horizontal well orientation joint inside is made up of three unit.Core pipe unit respectively, guide shoe unit, directed element.
Core pipe unit forms primarily of core pipe 2.For high-pressure fluid flowing provides passage.It is fluted that core pipe 2 and directed pawl overlap 8 contacts site, lower end, connected, make directed pawl cover can only make axial-movement along core pipe 2 by directional bolt 11.Core pipe 2 internal diameter is less than lower contact 15, and has cavity between lower contact 15.When pumping into high-pressure fluid in well, due to the throttling action of nozzle, can there is high-pressure fluid in cavity, these high-pressure fluids are seesawing of whole orientation joint and powered rotation.Core pipe 2 and directed pawl overlap cat's paw contact site annular groove, and steel ball 7 can be made to be free to slide.
Guide shoe unit is made up of three parts.The columniform cylindrical shell 5 of Part I.Cylindrical shell 5 is connected by screw thread with lower contact 15, and lower contact is connected with perforating system, and perforating system can be rotated along with the rotation of cylindrical shell.Cylindrical shell 5 top is connected by hold-down screw 3 with guide shoe 4.Angle between ground adjustment hold-down screw 3 and perforation tool nozzle, suppress after under instrument lower going-into-well, the cylindrical shell band power driven tools anglec of rotation is a fixed value, can realize the location in the wellbore of nozzle.Part II is guide shoe 4.Connection between guide shoe 4 and core pipe 2 will make guide shoe 4 can rotate freely and translation.Guide shoe is formed by an oblique cutting of cylinder.Gathering sill is formed at top-slitting after cutting sth. askew.The Length x Width of gathering sill length and width and cat's paw matches, and object is to hold outstanding cat's paw, the horizontal joint after fixing rotation.At distance from top fluting, certain position place mills out a screw, is connected with cylindrical shell by set bolt 3.Guide shoe is connected by set bolt with cylindrical shell 5.Part III is stage clip 6.Stage clip 6 connects guide shoe and core pipe, promotes guide shoe motion, can make the original state that guide shoe 4 recovers original at release rear compression spring.
Directed element and core pipe 2 are all slidably connected.Be made up of three parts.Part I is seal receptacle 14, is responsible for the space in the middle of sealed core pipe 2, makes high-pressure fluid produce pressure reduction, and bears the pressure of high-pressure fluid, promotes stage clip 6,12 and directed pawl cover 8 motion.Part II is stage clip 12.Stage clip 12 connects seal receptacle 14 and overlaps 8 with directed pawl, directed pawl can be made to overlap 8 restPose after release.Part III is directed pawl cover 8.Directed pawl cover is processed by elasticity steel, and top is cat's paw, around core Guan Yizhou.Process groove at corpus unguis and core pipe correspondence position, in groove, place one piece of directed steel ball 7.Steel ball 7 can only move at inside grooves hoop, and can rest on groove bottom all the time.Bottom is pawl cover.Pawl cover and core pipe 2 have space between seal 9 and seal 10.High-pressure fluid can promote directed pawl cover 8 by space and move to oil pipe lower end.When pumping into highly pressurised liquid in core pipe 2, some high-pressure fluid enters space, promotes directed pawl cover and does axial-movement along core pipe to extreme direction under oil pipe, and when elasticity cat's paw contacts with steel ball 7, because steel ball 7 is in stationary state, elasticity cat's paw is by steel ball 7 jack-up.Elasticity cat's paw forms directional bond under steel ball 7 acts on.
During erecting tools, the angle between ground adjustment set bolt 3 and perforation tool nozzle.Instantly after entering instrument in orientation joint bead 7 due to Action of Gravity Field, groove extreme lower position.During work, in oil pipe, pump into high-pressure fluid from well head.High-pressure fluid flows into core pipe 2, and most of high-pressure fluid enters lower contact and nozzle by core pipe 2, and fraction enters the space of directed pawl cover 8, makes directed pawl overlap 8 along core pipe axial-movement, and makes the cat's paw's expansion being in groove lowest part, forms directional bond.Major part high-pressure fluid promotes lower contact and drives cylindrical shell 5 along well axially-movable.Under gathering sill effect, guide shoe 4 can rotate, and when in the process that directional bond contacts with guide shoe 4, guide shoe 4 rotates, and drive cylindrical shell and perforating system to rotate, until directional bond enters the gathering sill of guide shoe, orientation process terminates simultaneously.Now perforation tool reaches after turning over certain angle and keeps the orientation of setting.
After perforation terminates, the fluid in cavity no longer has high pressure.Now, the stage clip 6 between guide shoe 4 and core pipe 2 returns to previous status gradually, makes guide shoe 4 return to original position together with cylindrical shell 5.Stage clip 12 between directed pawl cover 8 and core pipe 2 returns to previous status gradually, and directional bond and gathering sill are departed from, and bead 7 comes back in groove.Whole orientation joint returns to off working state, can reuse.
The foregoing is only the schematic detailed description of the invention of the present invention; and be not used to limit scope of the present invention; any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (3)
1. a hydraulic jet perforation nozzle automatic orienting device, it is characterized in that: install in instrument one only annularly the free-moving steel ball of track as direction sign, under the high-pressure fluid effect pumped into, perforation nozzle is made accurately to rotate to the direction becoming to set angle with this Warning Mark.
2. automatic orientation method according to claim 1, the mechanism that steel ball and a set of one end have multiple elastic claw coordinates, when this mechanism moves under fluid pressure action, that elastic claw be positioned at bottom will be given prominence to, rotation limit, planned orbit limit along a kind of known features is moved, thus drives the down-hole abrasive perforating instrument being provided with nozzle to rotate.
3. be all provided with spring in elastic claw mechanism according to claim 2 and planned orbit, after guaranteeing fluid pressure release, mechanism restores to the original state to reuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227401.5A CN104863552A (en) | 2015-05-07 | 2015-05-07 | Hydraulic orienting device for horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227401.5A CN104863552A (en) | 2015-05-07 | 2015-05-07 | Hydraulic orienting device for horizontal well |
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| CN104863552A true CN104863552A (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510227401.5A Pending CN104863552A (en) | 2015-05-07 | 2015-05-07 | Hydraulic orienting device for horizontal well |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547601A (en) * | 2018-06-05 | 2018-09-18 | 杰瑞能源服务有限公司 | A kind of horizontal well hydraulic orientation spray gun |
| CN111878047A (en) * | 2020-07-03 | 2020-11-03 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional fracturing perforation device and positioning method thereof |
| CN116697983A (en) * | 2023-08-09 | 2023-09-05 | 陕西建一建设有限公司 | Concrete bridge subsides detection device |
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| CN201420541Y (en) * | 2009-06-04 | 2010-03-10 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well located sand spraying and perforating device |
| US20120152523A1 (en) * | 2010-09-09 | 2012-06-21 | Summit Downhole Dynamics, Ltd. | Self-Orienting Fracturing Sleeve and System |
| CN102635311A (en) * | 2012-05-03 | 2012-08-15 | 西南石油大学 | Orienting device for drilling of radial horizontal well |
| CN203239241U (en) * | 2012-12-31 | 2013-10-16 | 托普威尔石油技术股份公司 | Tubular column steering controller and tubular column steering control system |
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2015
- 2015-05-07 CN CN201510227401.5A patent/CN104863552A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420541Y (en) * | 2009-06-04 | 2010-03-10 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well located sand spraying and perforating device |
| US20120152523A1 (en) * | 2010-09-09 | 2012-06-21 | Summit Downhole Dynamics, Ltd. | Self-Orienting Fracturing Sleeve and System |
| CN102635311A (en) * | 2012-05-03 | 2012-08-15 | 西南石油大学 | Orienting device for drilling of radial horizontal well |
| CN203239241U (en) * | 2012-12-31 | 2013-10-16 | 托普威尔石油技术股份公司 | Tubular column steering controller and tubular column steering control system |
Non-Patent Citations (1)
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| 佟建国: "限位式液压钢球定向器", 《煤田地质与勘探》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547601A (en) * | 2018-06-05 | 2018-09-18 | 杰瑞能源服务有限公司 | A kind of horizontal well hydraulic orientation spray gun |
| CN108547601B (en) * | 2018-06-05 | 2023-08-11 | 杰瑞能源服务有限公司 | Hydraulic directional spray gun for horizontal well |
| CN111878047A (en) * | 2020-07-03 | 2020-11-03 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional fracturing perforation device and positioning method thereof |
| CN111878047B (en) * | 2020-07-03 | 2022-06-14 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional fracturing perforation device and positioning method thereof |
| CN116697983A (en) * | 2023-08-09 | 2023-09-05 | 陕西建一建设有限公司 | Concrete bridge subsides detection device |
| CN116697983B (en) * | 2023-08-09 | 2023-10-10 | 陕西建一建设有限公司 | Concrete bridge subsides detection device |
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Application publication date: 20150826 |
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