SU1276799A1 - Above-bit hydraulic elevator - Google Patents

Abstract

The invention relates to a technique for drilling wells and improves the reliability of operation of the device and the efficiency of cleaning of the rock from the rock by reducing the hydrodynamic pressure on the bottom. For this, jet pumps with nozzles 5 and diffusers (D) 9 are installed inside the device case 1, and a sealing element is installed on the surface. The blades 12 are evenly placed around the circumference of the housing 1 between the D 9. The sealing element is made in the form of a metal disc 6 having a groove 7 on the side surface and solid pins 11 (L o O5: o from Fig. 1

Description

The alloy maintains the gap between the wall of the skin 13 and JHCKJM 6. The cavity of the groove 7 communicates with the cavity of the pumps through the holes 8 in the disk 6 of the crowds 10 in D 9, which are movable relative to the nozzles 5 in a vertical position. In the Dnepr process, the flushing fluid (RV) flows through channel 4 to the nozzles o, then into D 9 and into the space above the disk (i and at the same time it is removed from the zone of operation of the bit to the zone of operation of the blades 12. They give the RV

translational rotational motion

upward from the bottom, increasing the speed () of its flow from the work area of the bit to the protrusion over the disk 6. And release hydrodynamic pressure on the bottom. The pancreas overflow to the bits through the gap between the walls of the borehole 13 and the disk 6 is prevented as a result of its passage through the groove 7 and its projectile jetting out of the Ge nozzles into the proCTpaiiCTBO under the disk 6. 2 h. item (-y, 2 n.i.

Invention from PS): ds. I, namely to drilling devices. The aim of the invention is to test the new | 1 (|) efficiency of cleaning the bottom from the drills ioi: rock1) 1 due to a drop in hydrodynamic pressure by 3a6oii and noBbiHieiinc reliability of operation ycTpoiicTBa. FIG. 1 rsdstavlen pad; 11.- | (1tp1, n hydraulic elevator, side view; on (juii. 2 the same, top view. Paddolotny hydraulic elevator consists of ko |) pusa 1 with pick-ups at both ends, tides 2.) P (| located around the circumference. Pr.shvi euniun1z1 with an internal cavity 3 kapalami 4, which are associated with a sop.tampa of the rigs Pasos. 11a building 1 h- | ro1Ktva with welding welding has been shifted p.t1) T11: gelny .1ept. 15 in the liinc disk 6. on the lateral surface of the KOTDpnro run. Chabrnt in the form of a stake), the price of k; m1; and (kp /, but whose armament by means of I iiciHI: П1 8, nosvsr.s.chennyh in the bottom and) with, 1 week | i odnuy n.kk-kosti with 1P) n: 1a.mi 5, said together in.i.iocthi with adjustable height D1p (1 (| 1 patterns 9, having in their body other target holes 10. Thus, the packtive element represents the co6oii 1 hydrodynamic valve, the neri (|:) serial surface of the KOTOpoiO armor1) of the solid alloy 11. Over the disk 6 in the gap between the diffusers 9 of the aerodynamic aerodynamic profile 12 and FIG. 1 position 13 denotes the well wall, as well as the space A and B, respectively, above and below the hydrodynamic gate. it melts with one unit of the unit. After that, after installing it into the well, it was installed on a stand, in which by moving the diffusers 9 upwards up or down the screw: on the bottom), you can get the minimum distance from his head to Diffusers D. 1 of this diameter. Soil 5. The diameter of the holes in the mounted con.iax but technical reasons can be different, but therefore each dream requires individual adjustment. Pos.thatyu I include; b); 1kv drill string and lowered into the well. During drilling, a part of the washing liquid and from the BH -Tpeiniei half-to-3 device knocks to the ground in the zone of rock destruction. and part of the channel.m 4 - to the nozzles 5 and further di (|) fuzors 9, goes into the space A na .; G1; drodynamic cells.1 gate. At the same time the washing fluid is transported from the bit work zone (prostration B) to the work zone of lonaste 12 (space A). Lonasty 12 give the washing liquid a rotational upward movement from the bottom of the well, increasing its velocity from space B to space A, which is equal to reducing the dynamic pressure of 10 shadows to the hole 1. The maximum possible nerena.; 1 pressure between the space. A p B no.ue is lidpodina; vlichclgm shutter barely. Wash the liquid from the prostate A, try to push it into the project B through the barrel; -; a ;-( the head formed by the borehole wall 13 and the outer surface of the disk 6, nonadjusts into the collar groove 7 and through the hole 8 and K) into the diffuser 9 , where; | о; 1 is bathed in a liquid, the output of the elbow p .; con.ia 5. and throw o6paTinj into space .A. In this way, the flushing liquid is prevented from entering the work zone to / from the wellbore between the borehole wall and the device m.

When launching operations, apoiicTBO device does not create additional interference. since the liquid has the ability to freely flow from under the chisel into the zatrhbnoy p | iustra:; and vice versa through the channels inside the chisel and the device, as well as through the nozzles of the jet pumps.

The faster the flow rate of fluid from the nozzles of the jet pumps, the greater the ejection capacity. As a result, the liquid above the device tends to face down the annular gap between the borehole wall and the device, falling into the annular groove of the hydrodynamic gate. Due to ejecting ability

liquid jets, DVPZhUPSHSYA in DP (|) (}) UZOR. X through the holes in the bottom of the ring grooves and diffusers, the fluid from the latter is sucked into the diffusers and ejected into the space of the device. Here there is a jet pump (pump) for two; one-step action, one main column (1) nonnegative pressure, one step in the bit work of the bit, the other dr. Seals the zones above the device under the device m.

Disk fi. Made of steel and fitted with a 1 mp hard alloy, it is sufficiently wear resistant, which allows you to maintain a guaranteed gap between cTefiKoi S1ch15 and pn device for an hour, iHiioro time.

Forlp / .sh inventions

. An overhead grading elevator, comprising a housing with jet pumps placed in some others, the seats of which are connected to a channel for supplying washing fluid, and diffusers with a bottomhole space, a sealing element for blocking the annulus space located on the housing, characterized in that increasing the cleaning efficiency of the bedrock from the rocks 1 1 due to the use of hydrodiampamps da1. In addition to the reliability of operation, it is equipped with blades, spaced11 between dp () 1frame jet jets, which are equally located but ok | pnost1 cases, and yn, p1p1te; 1pcn element vnyuchchenn in the form of a disk, on the side N ( : ;; cush which has an annular groove, the cavity of which is in communication with the nozzles dp (1fusers of | 1pumps are connected by means of holes, made respectively in the disk and diffuser.

2. Gpdroe.1evator, but clause 1. characterized in that the patterns of the jet pumps are installed with the possibility of vertical mounting relative to cone.i, and the holes in the diffusers are made in the form of slots.

3..1 deviator. but n. 1, си си си си ис ис V V O,,,, что что что что что что 1 1 1 1 1 1 1 1 СК СК 1 1 о 1 из 1 из 1 из ч 1 м мп 1 м 1, 1 1, 1 из 1 1 p m1

FIG. 2

Claims (4)

Claim 1. A sub-bit hydraulic elevator comprising a housing with jet pumps located therein, nozzles of which are connected to a channel for supplying flushing fluid, and diffusers to a bottomhole space. a sealing element for closing the annulus, located on the housing, characterized in that. in order to increase the efficiency of cleaning the bottom from cuttings by reducing the hydrodynamic pressure on the bottom and increasing the reliability, it is equipped with blades placed between the diffusers of the jet pumps, which are evenly spaced around the circumference of the body, and the sealing element is made in the form of a disk on the side surface of which there is an annular groove, the cavity of which is in communication with the cavities of the diffusers of the jet pumps through the holes. made respectively in the disk and diffuser. 2. Hydro elevator but π. I. characterized in that the diffusers of the jet pumps are fitted with foam with the possibility of vertical movement relative to the nozzles, and the holes in the diffusers are made in the form of slots. 3. Hydroelevator, according to η. 1. different heme. that its disk is made of metal and reinforced with hard alloy pins. Compiled by E. Stolbtsov Editor N. Horvat Order 6649/27 Tehred I. Veres Corrector A. Ilyin Circulation 548 Subscription VNIIIPI of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh — 35, Raushskaya nab., D. 4/5 Branch of the PPP "Patent", Uzhhorod, st. Design. 4