Device for lowering devices into a well

FIELD: mining industry.

SUBSTANCE: device has post with mounting holes along circle, forks with aperture for holding fork relatively to post, roller and stopper. Upper portion of post and lower portion of fork are made in form of disc, are combined by axes and have mounting apertures along even circle along axis in a way, that angle between post apertures was different from angle between fork apertures.

EFFECT: higher durability, higher precision, higher efficiency, broader functional capabilities, higher personnel and equipment safety.

1 ex, 3 dwg


The present invention relates to the oil industry and is used for deep research wells without excess pressure on the mouth.

Known estuarine roller for injection wells containing the guide roller and bracket with the centering flange (Studies of flow and liquid absorption capacity of the reservoir. Blazhevich, VA, Fahreen I.A., Glazkov, A. M. - the Bowels, 1969. - P.56). The design of the roller can not deep down devices in the annular space of wells due to the lack of mechanism for regulating the distance between the hole for the descent of the device and a fixing hole to plan the puck wellhead.

Known design wellhead roller, allowing you to modify this distance 7 times, since the bracket is made of two-unit from the rack and plug the rollers did with the lifts Ainmal-8 and 11, Baku). The rack is made in the form of a sector of a circle has several (7) mounting holes around the perimeter and attached to the plan-the washer is screwed through one of several holes in the plan-washer well. The plug has a single return hole for fixing the rack and fork with the roller in the desired position by means of the stopper.

Operation of the wellhead roller has demonstrated the inadequacy of the seven mounting holes for precise alignment of the scraper wire (KAB is La) relative to the hatch opening. The location on the rack more of the mounting holes is impossible for two reasons. First, the large size will not fit in the limited space well with a wellhead valves. Secondly, large dimensions weight construction of the entire device.

In addition, there is a difference in position of the scraper wire relative to the descent of the hole during the descent and ascent of the underlying instrument. This difference is explained by the property of the deployed wire to resist bending and the presence of friction wire and instrument in the borehole and the contained fluid. Therefore, when the shutter unit scraper wire wrapping around the roller at a greater diameter than when lifting. This leads to the loss of alignment of the wire with the rise and subsequent touch the wire on the sharp edge of hatch openings (all holes for draining devices are threaded with a sharp edge).

Constant friction scraper wire on the edge of the reentry hole reduces its strength characteristics, it leads to the cliff with a drop of the device into the well.

The purpose of the invention is to increase the number of recorded positions of the rack and fork with roller while simultaneously reducing the metal device. This goal is achieved by the fact that the known device for lowering depth of the instrument in the borehole containing the rack with the pilot who advised holes around the circumference, plug with mating hole for fixing the fork relative to the rack, the roller and stopper, changed so that the top of the stand and the lower part of the fork is made in the form of a disc, aligned with the axis and have the mounting holes is equal to the circumference of the wheel axis so that the angle between the holes of the plug differs from the angle between the holes of the rack.

Device for lowering instruments into the well is depicted in figure 1. Section component parts of the device are given in figure 2 and figure 3. The device consists of a roller 1, plug 2, the rack 3, the stopper 4. Male 2 hour and 3 are connected to the hinge axis 5. To equal the circumference from the common axis of the plug 5 and hour have mounting holes. Angle α between the holes of the fork a few degrees different from the angle β between the holes of the rack. This angular offset distances allows to increase the number of recorded positions of the fork and rack with the help of get through-hole and the stopper 4.

Example: α-β=4,5°then by turning the plug 2 relative to 3 hours at 90° their through holes will match 20 times (90°:4,5°).

Device for lowering instruments into the well operates as follows. By mutual location of the well hole deep descent of the device and lift with winch designed device is mounted on the plan-washer SLE the new well with a bolted 3 hours. The plug 2 with the roller 1 is rotated on the axis 5 relative to the rack 3 with the possibility of fixing every α-β degrees to achieve the optimum position. The optimal position of the plug relative to the rack provides vertical descent scraper wire through the center hole for draining devices. The optimal position of the plug 2 and hour 3 rigidly fixed stopper 4. Coming from optimum holes for fixing the fork and rack are at an angular distance of α-β degrees, i.e., 3-5°. This is considerably lower than in the prototype, where this angle is 90°:(n-1), where n is the number of holes on the rack. Under normal seven holes the desired angle is 15°.

Due to the difference between α and β only a few degrees for lowering and lifting device with different tension scraper wire the opportunity to use one of the two adjacent through holes of the device for better centering of the wire.

Thus, the proposed device is better than the prototype performs its technical purpose - allows you to lower and raise deep unit without friction scraper wire on the sharp edge of the well hole. Positive technical result is achieved due to job a small difference in the angles between the mounting holes of the rack and fork and devices. Change the design of the product at the same time reduced its dimensions and weight from 10 to 7.8 kg

Technical and economic efficiency of the device is formed by extending the service life of the scraper wire, reducing the number of breaks and the cost of removing fallen into the well of the devices.

Device for lowering instruments into the well containing the rack with the mounting holes around the circumference, the plug with mating hole for fixing the fork relative to the rack, the roller and stopper, characterized in that the upper rack and the lower part of the fork is made in the form of a disc, aligned with the axis and have the mounting holes is equal to the circumference of the wheel axis so that the angle between the holes of the rack is different from the angle between the holes of the fork.


Same patents:

FIELD: oil industry.

SUBSTANCE: all equipment-hoisting operations are performed during underground well maintenance prior to lowering pumping equipment. Equipment is mounted in tail piece lowered into well. After extraction of pumping equipment from the well, end piece with closed end is lowered, having calculated length, dependent on depth of perforation range. Then specially made branch pipe is lowered into well with slit outlet for geophysical cable. Branch pipe with slit outlet is rigidly connected to pipe pumping filter. Then equipment is lowered into tail piece in such a way, that geophysical cable was inserted through slit outlet into behind-pipe area of well. Further, pumping equipment is lowered, including tubing string, well sucker-rod pump and bars column suspension. In such a way, equipment is effectively positioned in tail piece, and connection to secondary equipment is maintained through geophysical cable, connected to tubing string by braces.

EFFECT: higher safety.

FIELD: oil and gas industry.

SUBSTANCE: device is made with possible use in conjunction with scraper for removal of paraffin precipitations. Device includes end piece for connection to well device and metallic rod with variable cross-section. Rod is made in form of at least three serially placed truncated cones. Cones have double relation of greater diameter to lesser diameter.

EFFECT: higher efficiency.

4 cl, 2 dwg

FIELD: oil and gas extractive industry.

SUBSTANCE: method includes selection of cable of required rigidity and fixing devices on it. Transporting of devices into well is performed under effect from weight of cable and devices. Cable also contains inner hermetic pipe, which is plugged on both sides prior to lowering cable into well. Liquid is pumped into pipe under pressure through locking valve in upper plug and is kept in pipe under constant pressure during operation. After that cable is lowered with devices fixed to it. Value of pressure of liquid in pipe is determined from formula Ppipe≥ Pwell(Scable/Spipe-1)-QcablexLcable/Spipe<Ptear, where Ppipe - pressure of fluid in pipe, kg-wt/sm2; Scable - cross-section of cable with pipe, sm2; Pwell - hydrostatic pressure of well liquid column at depth of planned delivery of devices on cable, kg-wt/sm2; Spipe - cross-section area of pipe aperture and plug area equal to it in contact with liquid in pipe, sm; Qcable - weight of 1 km of cable with pipe, kg-wt; Lcable - length of cable to depth of planned delivery of devices, km; Ptear - pressure of liquid in pipe leading to tear of cable, kg-wt/sm2, determined from formula: Ptear=Ftear/Spipe, where Ftear - tear force for cable according to documentation, kg-wt.

EFFECT: higher efficiency.

3 cl, 1 dwg, 1 tbl

The invention relates to the oil industry and can find application in the operation of horizontal and inclined oil-producing and injection wells

The invention relates to measuring apparatus and can be used in the oil and gas industry and Geophysics to control the spatial position of the wellbore while drilling

The invention relates to elektrobudowa technique, namely the electrical power supply of electric drills designed for drilling oil and gas wells

The invention relates to oil, gas, vododobyvayuschih industry and can be used in devices intended for installation of various devices and mechanisms in the well

The centralizer // 2221142
The invention relates to devices for research exploration and wells geophysical methods, and is intended for centering borehole instruments in the string of drill pipes

The invention relates to the field of drilling and can be used to monitor downhole parameters during drilling

The invention relates to the field of drilling and operation of wells and can be used when measuring the length of the pipe string during tripping operations

FIELD: drilling equipment, particularly devices adapted to lower and lift drill string.

SUBSTANCE: device includes connection parts formed on drilling pipe sections, for instance as sleeve or male half of tool joint with tool-joint threads, rotary key for above members and supplementary means. Supplementary means have cavities with sensors and is built in drilling string. The means are also provided with detachable reinforcing clamp made as bails connected one to another. The bails are arch-shaped and plate-type and are pivotally connected one to another. Inner bail surfaces have extensions inserted in grooves formed in supplementary means so that groove dimensions correspond to that of bail extensions.

EFFECT: reduced size of lock connection and increased free space for measuring tools installation.

3 cl, 4 dwg

Slip // 2260668

FIELD: oil production equipment, particularly means for performing tripping processes under increased pressure, for thawing frozen wells and hydrate blocks inside wells.

SUBSTANCE: slip comprises body with conical boring in upper part thereof. Arranged in the boring are wedges having grooves in upper outer parts thereof. Ring-like tensioning springs are located in wedge grooves. Borings are formed in upper inner wedge parts opposite to the grooves.

EFFECT: increased reliability of automatic pipe gripping during pushing thereof out of well, reduced idle time for wedge change or cleaning, increased service life of the wedges.

2 dwg

Drilling rig // 2259456

FIELD: well drilling equipment, particularly light or superlight drilling rigs.

SUBSTANCE: drilling rig includes frame and guiding means pivotally connected to frame, rotary supplying system arranged on guiding means and anchoring members. Drilling rig is provided with support member displaceable relative guiding means and anchoring members secured to the support member through clamps. Guiding means has clamps of anchor members. Secured to lower side of support member is grouser. In the case of inclined well boring drilling rig is provided with drill steel support. Drill steel support has pins, tension bars secured to pins by clamps so that tension bars may to perform adjusting longitudinal movement and adjusting rotation about the pins. Another tension bar ends are provided with clamps. During inclined well boring frame extensions secured to the frame are used if required. Guiding means and support member have means for alternate drill steel support fixation.

EFFECT: reduced dynamic loads applied to drilling tool, increased drilling rig stability and increased drilling rig weight utilization ratio.

8 dwg

FIELD: oil production industry, particularly mechanization devices for trip operations performed during development, underground pullout and maintenance of the well.

SUBSTANCE: movable rack comprises base made as sledge skids provided with retractable wheel supports. Right and left racks have transversal load-bearing drop beams, receiving gutter and trailed device. Foldable central working panel is connected to rear ends of movable racks in accordance with width thereof. Working panel has opened slot for wellhead flange receiving and side working panels located within the range of drop beams spread. Central and side panels are supported by load-bearing retractable beams so that retractable beam positions may be adjusted relative wellhead.

EFFECT: increased working efficiency and improved production standards.

8 dwg

FIELD: oil production industry, particularly for pulling and running the oil-well tubing.

SUBSTANCE: device comprises docking mechanism made as double-stage coupling sleeve with opened longitudinal mouth for oil-well tubing receiving. Lower coupling sleeve stage may be seated on end of oil-well tubing coupling member and is mated with outer diameter thereof. Upper stage is formed as a funnel with diameter of lesser base defined between coupling sleeve stages corresponding to outer oil-well tubing diameter. Lower stage of docking mechanism is mated with the outer diameter of coupling member along line enclosing more than half of coupling member perimeter.

EFFECT: increased yield, improved safety and increased service life of oil-well tubing threads.

3 dwg

Drilling rig // 2256761

FIELD: mining industry, particularly devices specially adapted for blasthole drilling during sinking and supporting mine tunnels.

SUBSTANCE: drilling rig comprises guiding grill mounting, spinner movably installed on drill mounting and extending in longitudinal direction thereof, spinner feeding device and release mechanism for uncoupling kinematical connection between rope and feeding device. Feeding device includes lead drum on which rope is wound. Lead drum end is connected with drill mounting body. Lead drum is made as a friction pulley. Release mechanism is operated rope tightening means and is installed on the drill mounting.

EFFECT: increased efficiency of blasthole drilling.

1 dwg

Drilling device // 2256057

FIELD: mining industry.

SUBSTANCE: device has mast with hoisting gear, rotor with inserts, swivel with sub, leading pipe with spring-loaded lock, driving sleeve and drilling pipes positioned inside. Sub of swivel is made in form of intermediate leading pipe, connected to driving sleeve of leading pipe telescopically.

EFFECT: higher speed of operation, broader functional capabilities.

5 cl, 1 dwg

FIELD: mining industry.

SUBSTANCE: device has body with external and internal stepped surfaces and axial ring-shaped supports, for, respectively, rotor and for stepped inserts coupled by links, made on upper end with side tracks and stopping clamps, supporting slanting surfaces for wedges with dies, socket for hoisting hook and drive, localizer, leading pipe clamp and crosspiece for chisels. Each axial ring-shaped support of inserts is positioned above ring-shaped support of body, upper end of body is made with faceted aperture for crosspiece for chisels and with grooves for responding shelves of inserts, made on upper step of the latter. Inserts are made with inner cone, positioned between their supporting planes and sharing slanting angle with it, no less than 1:6.

EFFECT: higher reliability, higher personnel safety, higher serviceability.

5 cl, 13 dwg

FIELD: mining industry.

SUBSTANCE: device has pipe catcher in rotor aperture, provided with localizer, inserts, having slanted grooves with supporting planes and wedges mounted in said grooves, connected to drive via supports with holders and guiding boards. Slanted grooves of inserts for wedges along whole length of supporting surfaces are made with side limiting walls, slanted relatively to support planes of inserts, while wedges are mounted with space relatively to side limiting walls of slanting grooves, while width B of lesser base is connected to width C of greater base of groove by relation C ≥ B + (D - Dmin)/√2, where D - diameter of through aperture of localizer, Dmin - minimal outer diameter of caught pipes.

EFFECT: higher reliability, higher personnel safety, higher serviceability.

2 cl, 7 dwg

FIELD: mining industry.

SUBSTANCE: device has body with slit connections to inserts, made with supporting surfaces for wedges with dies, connected to drive via supports with holders and guiding boards, localizer and clamp for leading pipe with conical supporting surface o body and rotary inserts, enveloping facets of leading pipe. Upper portion of body of holder of leading pipe is positioned near upper end of device body and is made of cross-like shape with position of cross-shaped shelves along axes of inserts joint coaxially to rotary inserts, and inserts are made with grooves of matching shape. Cross-shaped shelves in transverse section have shape of two-step wedge with flat vertex, directed downwards, while angle α of wedge near the base is derived from formula α = 2(β±30'), where β - maximal angle of deflection of leading pipe from axis of through aperture of device, and wedge angle near vertex is equal to 30°-40°, while cross-shaped shelves are positioned at the level of slit connections of inserts with device body and with guaranteed space between their lower end and bottom of grooves for them in the inserts.

EFFECT: higher reliability, higher personnel safety, higher serviceability.

4 cl, 9 dwg

Mouth equipment // 2244097

FIELD: oil and gas extractive industry.

SUBSTANCE: equipment has body in form of upper and lower portions, pipes turning mechanism, splashes deflector having conical shape, wiper with aperture, liquid flow deflector in form of cone. Blocks of wedges are mad with possible forming of through channel between them and with body for draining liquid to well. Equipment performs hoisting operations with tubing and drilling pipes. Cone is placed in lower portion of body. Liquid flow is focused towards center and along outer wall of tubing column through wiper aperture into well.

EFFECT: prevented pollution, higher productiveness.

2 dwg