CN1306144C - Split diameter-changing oil testing swab - Google Patents
Split diameter-changing oil testing swab Download PDFInfo
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- CN1306144C CN1306144C CNB2004100688342A CN200410068834A CN1306144C CN 1306144 C CN1306144 C CN 1306144C CN B2004100688342 A CNB2004100688342 A CN B2004100688342A CN 200410068834 A CN200410068834 A CN 200410068834A CN 1306144 C CN1306144 C CN 1306144C
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- oil
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- conical surface
- taper
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Abstract
The present invention relates to a split diameter-changing oil testing swab in oil well working tool field, which is disposed from up to down with a fishing device, an oil intake lower joint, a central pipe, an upper joint, a loading lever, a conical surface body, a steel cable terminal joint and a support cylinder. A conical surface body with conical surface is disposed between the loading lever and the steel cable terminal joint, the steel cable is jointed with the support cylinder, the outside of the support cylinder is disposed with an upper glue cylinder, the cylinder wall of the support cylinder on the inner side of the upper glue cylinder is disposed with through holes, the outer diameter of the upper cylinder is larger than the outer diameter of the glue cylinder, the upper and lower sides of the upper glue cylinder are disposed with an upper cylinder bearing seat, the support cylinder on the upper side of the upper glue cylinder is disposed with an upper oil outlet, the inner side of the lower end surface of the support cylinder is disposed with a conical surface, the conical surface of the support cylinder is coupled with the conical surface of the conical surface body. The invention not only is adapted for testing oil in equal diameter bushing or oil pipe, but also is adapted for testing oil for diameter-changing bushing or oil pipe.
Description
Technical field
The present invention relates to a kind of oil field underground work instrument, particularly be used for the split type diameter-changing oil testing swab that oil well formation testing and stripper well drag for oil.
Background technology
Oil testing swab, be mainly used in the oil well formation testing, to verify the reserves of oil, the degree of depth, oil testing swab of the prior art, mainly by fishing device, the oil-feed lower contact, ball valve, Pressure Block, packing element, central tube, top connection, weighted lever, steel cable termina is formed, fishing device is arranged at oil testing swab bottom, the fishing device upper end is connected with the oil-feed lower contact, oil-feed lower contact upper end is connected with central tube, the central tube upper end is connected with top connection, the top connection upper end is connected with weighted lever, and the weighted lever upper end is connected with steel cable termina, and the steel cable termina upper end is connected with steel wire; Oil-feed lower contact side is provided with oil-in, be provided with cavity in the oil-feed lower contact, described cavity bottom is connected with oil-in, the cavity upper end is connected with the tube chamber of central tube, described ball valve is arranged in the cavity, and central tube top is provided with oil-out, and central tube is socketed with packing element outward, Pressure Block is arranged at the both sides up and down of packing element, and the central tube tube wall of packing element inboard is provided with through hole.When work, oil testing swab is sunk in the down-hole oil tube, in the descending process of oil testing swab, downhole oil enters and crosses ball valve from oil-in and enters in the cavity, and is up along central tube again, enter the top of upper end Pressure Block from oil-out, and press down Pressure Block, make the packing element pressurized, the opposing party and, outwards extruding of the oil that the packing element inboard is come from through hole, two power actings in conjunction are expanded packing element and are compressed with tube inner wall, and the oil phase of packing element top and packing element bottom is isolated mutually, at this moment, on draw wire rope, ball valve is closed, the oil on packing element top, to be taken out of outside the well, be reached the formation testing purpose.This oil testing swab only is applicable to formation testing under the constant situation of oil pipe or sleeve pipe caliber.
In recent years, many oil fields enter the exploitation middle and later periods, how to make full use of the surplus value of the intact well section of these old wells? oil production engineers have carried out unremitting effort for this reason; Nineteen nineties, oil fields such as the Liaohe River, grand celebration, triumph, Jiangsu are in old filed is taped the latent power, carried out the casing window sidetracking Study on Process in succession,, be lowered to the sidetracking technology that Φ 89mm tail pipe carries out perforation completion and also carry out in succession in Φ 139.7mm CST.At present, utilization is verified the old well in oil district and is carried out casing window sidetracking, has become the important means of exploitation old filed remaining oil, and can save cost effectively, improves the ultimate recovery of block.
Window sidetracking in the old well of the Φ of low-permeability oilfield 139.7mm sleeve pipe, tail pipe adopt the sidetracked hole of Φ 88.9mm cased hole completion to get more and more.But this class sidetracked hole has sidetracking a little high, the characteristics such as the tail pipe size is little, permeability of target strata is low, pressure is low, yield poorly of windowing.Usually can run in the formation testing process because the production fluid amount is low, liquid returns row's difficulty in the small casing, can not take conventional pumping forced-ventilated technology to dredge the stratum and level pressure (depthkeeping) is asked product, and the authenticity of formation testing output is under suspicion.What is more, because the yielding poorly of sidetracked hole, can't normally go into operation and make sidetracked hole leave unused, and can not utilize; How to solve the discharge opeing problem of this class sidetracking small casing well, become oil production engineers and pressed for one of problem of solution; At present, also there is not a kind of formation testing instrument in reducer pipe, can carry out formation testing both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of split type diameter-changing oil testing swab, make formation testing in its sleeve pipe that can not only be applicable to that caliber is constant or the oil pipe, also can be applicable to the sleeve pipe or the interior formation testing of oil pipe of different-diameter.
The object of the present invention is achieved like this: comprise fishing device, oil-feed lower contact, ball valve, Pressure Block, packing element, central tube, top connection, weighted lever, steel cable termina, fishing device is arranged at oil testing swab bottom, the fishing device upper end is connected with the oil-feed lower contact, oil-feed lower contact upper end is connected with central tube, the central tube upper end is connected with top connection, the top connection upper end is connected with weighted lever, and the steel cable termina upper end is connected with steel wire; Oil-feed lower contact side is provided with oil-in, be provided with cavity in the oil-feed lower contact, described cavity bottom is connected with oil-in, the cavity upper end is connected with the tube chamber of central tube, described ball valve is arranged in the cavity, and central tube top is provided with oil-out, and central tube is socketed with packing element outward, Pressure Block is arranged at the both sides up and down of packing element, and the central tube tube wall of packing element inboard is provided with through hole; Be provided with the conical surface body that has the conical surface between weighted lever and the steel cable termina, be socketed with support tube on the wire rope, support tube is provided with the gluing tube outward, the described supporting cylinder wall of going up the packing element inboard is provided with through hole, the described external diameter of going up the external diameter of packing element greater than described packing element, the upper and lower both sides of last packing element are provided with the top cylinder Pressure Block, and the support tube of last packing element top is provided with oil discharge passage, inboard, support tube lower surface is provided with a conical surface, and the conical surface on the described support tube matches with the conical surface on the conical surface body.
The present invention in use, it can be sunk in the sleeve pipe that has tail pipe, because the tail pipe caliber is little, support tube can rest on the side drilling hole place of sleeve pipe, remainder continues descending under the weighted lever effect, enter tail pipe, oil in tail pipe enters and crosses ball valve from oil-in and enters in the cavity, up along central tube again, enter the top of the Pressure Block of packing element upside from oil-out, and press down Pressure Block, make packing element be subjected to axial compression, packing element is subjected to being come by through hole on the central axis radial pressure of oil again simultaneously, packing element pressurized and expand and compress with inner wall of liner isolates the oil phase of packing element top and packing element bottom, at this moment, on draw wire rope, ball valve is closed, and the oil on packing element top will be taken out of tail pipe and the oil discharge passage on support tube enters in the sleeve pipe, simultaneously, the up conical surface with the support tube lower end of conical surface body matches, and is descending under the upper pressing seat oil pressure effect above it outside the sleeve pipe, and packing element is gone up in extruding downwards vertically, go up simultaneously packing element and also be subjected to the radial load effect, make its expansion and be pressed in internal surface of sleeve pipe, at this moment, draw wire rope in the continuation, oil in the sleeve pipe is taken out of outside the well, just can reach the formation testing purpose; The present invention also can make the conical surface on the support tube and conical surface body match and enter oil pipe or sleeve pipe, can the oil pipe or the sleeve pipe of single caliber be carried out formation testing or drag for oil; The present invention can improve formation testing and return drain age velocity and efficient, can carry out the pumping forced-ventilated for stripper well, carries out depthkeeping, takes out and ask product regularly, surely, and formation testing pumping output improves greatly with the coincidence rate of true output; Can behind acidification to dispel block, discharge residual acid rapidly for the sidetracked hole that pollution is arranged in drilling process, prevent secondary pollution, improve acidizing effect, can carry out the effect contrast of acidifying front and back by pumping, for the evaluation of acidification technique technique effect provides foundation, provide foundation for get the formation testing target zone clear true and reliablely; The present invention can also yield poorly part fully effectively, can't normally go into operation and the sidetracked hole that gets off that leaves unused uses, and promptly as carrying out the way that conventional well drags for oil this part well is used, and maximally utilises the effect of the sidetracked hole that leaves unused.
Be provided with three angles in the described support tube and be 120 ° directive wheel, three directive wheels are held in rope cramp on the central axis of support tube along the radial direction of support tube, and the center of directive wheel is provided with central axis, and described central axis is fixed in the support tube.This technical scheme can be set upright steel wire better, makes the conical surface on the support tube and awl and physical efficiency cooperates better, simultaneously support tube is also played certain guide effect.
Described steel cable termina comprises that wire rope rope socket, taper carve piece, spring, rope socket blocking cap, the wire rope rope socket is connected by screw thread with the rope socket blocking cap, be provided with the taper attrition surface in the wire rope rope socket, taper is carved piece and is arranged in the wire rope rope socket, described taper attrition surface is carved piece with taper and is matched, spring is arranged at taper and carves between piece and the rope socket blocking cap, and the end face of rope socket blocking cap is conflicted and carved on the bottom surface of piece in taper, and the taper surface that piece is carved in taper is provided with some grooves.During use, wire rope rope socket cover is inserted steel wire, again steel wire head is partly become some strands, each strand steel wire is positioned over taper to be carved in the groove on the piece, spring is positioned over taper to be carved between piece and the rope socket blocking cap, then wire rope rope socket and rope socket blocking cap are tightened, at this moment, steel wire is pressed on the attrition surface; This technical scheme can reliably be connected steel wire with steel cable termina, need not irritate plumbous, can save time, and also can eliminate and irritate plumbous injury to human body.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2---Fig. 4 is respectively the STRUCTURE DECOMPOSITION figure of Fig. 1.
Fig. 5 is that the A-A of Fig. 2 is to view.
Fig. 6 is the steel cable termina structural representation.
The specific embodiment
As shown in the figure, wherein, 1 wire rope, 2 central axiss, 3 directive wheels, oil-out on 4,5 top cylinder upper pressing seats, packing element on 6,7 sleeve pipes, 8 top cylinder lower pressing seats, 9 support tubes, 10 conical surfaces, 11 side drilling holes, 12 tail pipes, 13 steel cable terminas, 14 conical surface bodies, 15 weighted levers, 16 top connections, 17 central tubes, 18 stop collars, 19 oil-outs, 20 upper pressing seats, 21 packing elements, 22 middle bearing seats, 23 lower pressing seats, 24 ball valves, 25 oil-feed lower contacts, 26 oil-ins, 27 fishing devices, piece is carved in 28 tapers, 29 wire rope rope sockets, 30 springs, 31 rope socket blocking caps.
As figure, split type diameter-changing oil testing swab, mainly by fishing device 27, oil-feed lower contact 25, ball valve 24, Pressure Block, packing element 21, central tube 17, top connection 16, weighted lever 15, conical surface body 14, steel cable termina 13, wire rope 1, support tube 9, the top cylinder Pressure Block, last packing element 6 formations such as grade, fishing device 27 is arranged at oil testing swab bottom, fishing device 27 upper ends are connected with oil-feed lower contact 25, oil-feed lower contact 25 upper ends are connected with central tube 17, central tube 17 upper ends are connected with top connection 16, top connection 16 upper ends are connected with weighted lever 15, weighted lever 15 upper ends are connected with conical surface body 14 lower ends that have the conical surface, the upper end of conical surface body 14 is connected with steel cable termina 13, and steel cable termina 13 upper ends connect wire rope; Oil-feed lower contact 25 sides are provided with oil-in 26, be provided with cavity in the oil-feed lower contact 25, the cavity bottom is connected with oil-in 26, the cavity upper end is connected with the tube chamber of central tube 17, described ball valve 24 is arranged in the cavity, central tube 17 tops are provided with oil-out 19, be socketed with two isodiametric packing elements 21 outside the central tube 17, Pressure Block is arranged at the both sides up and down of each packing element, described Pressure Block is followed successively by upper pressing seat 20 from top to bottom, middle bearing seat 22, lower pressing seat 23, wherein, middle bearing seat 22 is the lower pressing seat of a last packing element, also is the upper pressing seat of next packing element, the tube wall of the central tube 17 of packing element 21 inboards is provided with through hole, also be socketed with stop collar 18 on the central tube 17 of upper pressing seat 20 upsides, be provided with the step that cooperatively interacts between the end of stop collar 18 and central tube 17, when stop collar 18 comes downwards to step and cooperatively interacts, step on the central axis 17 blocks stop collar 18, it is descending to stop packing element 21 to continue, and with the protection packing element, prevents the packing element excessive deformation; Support tube 9 is socketed on the wire rope 1, the support tube 9 outer gluing tubes 6 that are provided with, the barrel of the support tube 9 of last packing element 6 inboards is provided with through hole, the described external diameter of going up the external diameter of packing element 6 greater than described packing element 21, last packing element 6 upper and lower both sides are provided with the top cylinder Pressure Block, are respectively top cylinder upper pressing seat 5 and top cylinder lower pressing seat 8, and the support tube 9 of last packing element 6 tops is provided with oil-out 4, inboard, support tube 9 lower surface is provided with a conical surface 10, and the conical surface 10 on the described support tube matches with the conical surface on the conical surface body 14; 3, three directive wheels of directive wheel that are provided with three angles in the described support tube 9 and are 120 ° are held on wire rope 1 on the central axis of support tube along the radial direction of support tube 9, and the center of directive wheel 3 is provided with central axis 2, and central axis 2 is fixed in the support tube 9; Described steel cable termina 13 is by wire rope rope socket 29, piece 28 is carved in taper, spring 30, rope socket blocking cap 31 formations such as grade, wire rope rope socket 29 and rope socket blocking cap 31 are connected by screw thread, be provided with the taper attrition surface in the wire rope rope socket 29, taper is carved piece 28 and is arranged in the wire rope rope socket 29, described taper attrition surface is carved piece 28 with taper and is matched, spring 30 is arranged at taper and carves between piece 28 and the rope socket blocking cap 31, the end face of rope socket blocking cap 31 is conflicted and is carved on the bottom surface of piece 28 in taper, the taper surface that piece 28 is carved in taper is provided with six road grooves, the bottom of wire rope 1 is divided into six strands, per sharely all snaps in a groove.
The present invention in use, whole device can be sunk in the sleeve pipe 7 that has tail pipe 12, because tail pipe 12 calibers are little, support tube 9 can rest on side drilling hole 11 places of sleeve pipe, remainder continues descending under the effect of weighted lever 15, enter tail pipe 12, oil in tail pipe 12 enters and crosses ball valve 24 from oil-in 26 and enters in the cavity, up along central tube 17 again, enter the top of upper pressing seat 20 from oil-out 19, and press down Pressure Block, make packing element 21 be subjected to axial compression, packing element 21 is subjected to being come by through hole on the central axis 17 radial pressure of oil again simultaneously, packing element 21 pressurizeds and expand and compress with the inwall of tail pipe 12, the oil phase of packing element 21 tops and packing element 21 bottoms is isolated, at this moment, on draw wire rope 1, ball valve 24 is closed, the oil on packing element 21 tops, tail pipe 12 will be taken out of and the last oil-out 4 on support tube 9 enters in the sleeve pipe 7, simultaneously, conical surface body 14 up matching with the conical surfaces 10 support tube 9 lower ends, merge sealing, and descending under the outer top cylinder upper pressing seat 5 oil pressure effect above it of sleeve pipe 7, packing element 6 is gone up in extruding downwards vertically, go up simultaneously packing element 6 and also be subjected to the radial load effect, make its expansion and be pressed in the inwall of sleeve pipe 7, at this moment, draw wire rope 1 in the continuation, oil in the sleeve pipe 7 is taken out of outside the well, just can reach the formation testing purpose.
Claims (3)
1, a kind of split type diameter-changing oil testing swab, comprise fishing device, oil-feed lower contact, ball valve, Pressure Block, packing element, central tube, top connection, weighted lever, steel cable termina, fishing device is arranged at oil testing swab bottom, the fishing device upper end is connected with the oil-feed lower contact, oil-feed lower contact upper end is connected with central tube, the central tube upper end is connected with top connection, and the top connection upper end is connected with weighted lever, and the steel cable termina upper end is connected with steel wire; Oil-feed lower contact side is provided with oil-in, be provided with cavity in the oil-feed lower contact, described cavity bottom is connected with oil-in, the cavity upper end is connected with the tube chamber of central tube, described ball valve is arranged in the cavity, and central tube top is provided with oil-out, and central tube is socketed with packing element outward, Pressure Block is arranged at the both sides up and down of packing element, and the central tube tube wall of packing element inboard is provided with through hole; It is characterized in that: be provided with the conical surface body that has the conical surface between weighted lever and the steel cable termina, be socketed with support tube on the wire rope, support tube is provided with the gluing tube outward, the described supporting cylinder wall of going up the packing element inboard is provided with through hole, the described external diameter of going up the external diameter of packing element greater than described packing element, the upper and lower both sides of last packing element are provided with the top cylinder Pressure Block, the support tube of last packing element top is provided with oil-out, inboard, support tube lower surface is provided with a conical surface, and the conical surface on the described support tube matches with the conical surface on the conical surface body.
2, split type diameter-changing oil testing swab according to claim 1, it is characterized in that: be provided with three angles in the described support tube and be 120 ° directive wheel, three directive wheels are held in rope cramp on the central axis of support tube along the radial direction of support tube, the center of directive wheel is provided with central axis, and described central axis is fixed in the support tube.
3, split type diameter-changing oil testing swab according to claim 1 and 2, it is characterized in that: described steel cable termina comprises the wire rope rope socket, piece is carved in taper, spring, the rope socket blocking cap, described wire rope rope socket is connected by screw thread with the rope socket blocking cap, be provided with the taper attrition surface in the wire rope rope socket, taper is carved piece and is arranged in the wire rope rope socket, described taper attrition surface is carved piece with taper and is matched, spring is arranged at taper and carves between piece and the rope socket blocking cap, the end face of rope socket blocking cap is conflicted and is carved on the bottom surface of piece in taper, and the taper surface that piece is carved in taper is provided with some grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100688342A CN1306144C (en) | 2003-12-09 | 2004-07-09 | Split diameter-changing oil testing swab |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200320120612.1 | 2003-12-09 | ||
| CN200320120612 | 2003-12-09 | ||
| CNB2004100688342A CN1306144C (en) | 2003-12-09 | 2004-07-09 | Split diameter-changing oil testing swab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664304A CN1664304A (en) | 2005-09-07 |
| CN1306144C true CN1306144C (en) | 2007-03-21 |
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ID=35035582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100688342A Expired - Fee Related CN1306144C (en) | 2003-12-09 | 2004-07-09 | Split diameter-changing oil testing swab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1306144C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444393B (en) * | 2010-10-08 | 2015-04-22 | 大庆北研石油设备制造有限公司 | Intelligent winch type pulling oil production system |
| CN103291250B (en) * | 2013-06-20 | 2015-12-23 | 杨云志 | Locking-proof oil dragging pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3876000A (en) * | 1973-10-29 | 1975-04-08 | Schlumberger Technology Corp | Inflatable packer drill stem testing apparatus |
| CN2349382Y (en) * | 1998-04-29 | 1999-11-17 | 胡勇 | Series sleeve quantitative pump |
| CN2530031Y (en) * | 2002-01-11 | 2003-01-08 | 江苏油田扬州开发区科贸技术开发公司 | Limit oil pipe skimming swab |
-
2004
- 2004-07-09 CN CNB2004100688342A patent/CN1306144C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3876000A (en) * | 1973-10-29 | 1975-04-08 | Schlumberger Technology Corp | Inflatable packer drill stem testing apparatus |
| CN2349382Y (en) * | 1998-04-29 | 1999-11-17 | 胡勇 | Series sleeve quantitative pump |
| CN2530031Y (en) * | 2002-01-11 | 2003-01-08 | 江苏油田扬州开发区科贸技术开发公司 | Limit oil pipe skimming swab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1664304A (en) | 2005-09-07 |
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Granted publication date: 20070321 |