CN2321941Y

CN2321941Y - Well testing vehicle dropping and fishing layered testing device

Info

Publication number: CN2321941Y
Application number: CN98236905U
Authority: CN
Inventors: 刘成训; 赵俊
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-13
Filing date: 1998-03-13
Publication date: 1999-06-02
Anticipated expiration: 2008-03-13

Abstract

A well testing vehicle dropping and fishing layered testing device is used on an oil field underground water injection pipe column. The device comprises a separator, a constant-pressure check valve, a throwing and fishing test core, a clock-free underground flowmeter and a clock-free pressure gauge, wherein a well testing vehicle is used as power to put the device into a well, and the layered injection allocation and layered test of three water injection layers can be completed once after the device reaches a preset position.

Description

Well testing truck pulling zonal testing device

The utility model relates to a kind of well testing truck pulling zonal testing device, is used for oil field underground water-injection tubing string.

At present there is following point in the positive backwash dropping-fishing test device that uses: 1, well head must return water in construction, and each oil recovery factory, oil field does not possess this condition, when adopting water tank, also can be unable to hold because of the water that test repeatedly goes out backwash and cause environment pollution.2, the test fuse Heavy Weight of positive backwash dropping-fishing test device, the situation that has backwash not come up, and joint ring easily comes off, and easily produces the jam phenomenon, causes the sealing failure and makes the test data distortion.3, cause the water filling layer position deficit.4, inapplicable sand output well.5, sealing that can not checking sealing of packer.

The purpose of this utility model provides and a kind ofly is used as power with well testing truck; in the testing arrangement lower going-into-well; once finish the testing arrangement of multi-zone flow regulating and zonal testing work behind the arrival precalculated position; it can overcome the shortcoming of positive backwash test; help protecting environment, remove smoothly; test the success rate height, guaranteed the authenticity of data, but and the sealing of checking sealing of packer applied widely.

For achieving the above object, the technical solution of the utility model is: well testing truck pulling zonal testing device, it is characterized in that it comprises packer (16), (17), constant pressure check valve (19), dropping-fishing test fuse (15), fishing head (13), no clock motor-pumped well down-off meter (12), no clock machine pressure gauge (29), packer (16), (17), constant pressure check valve (19) is connected on the oil pipe (10) by screw thread, no clock machine and down-off meter (12), no clock machine pressure gauge (29) is connected on the dropping-fishing test fuse (15) by the screw thread of M24 * 1.5, fishing head (13) is connected with dropping-fishing test fuse (15), be in the center of test fuse (15), also be in the center of oil pipe (10), dropping-fishing test fuse (15) is contained in the inside of oil pipe (10).

The utility model adopts well testing truck dropping-fishing test device, well head does not return water, avoided causing environment pollution, test fuse when this installs favourable well testing truck pulling removes smoothly, not be used in well head and take over control jet pipe, make easy and simple to handle, the whole down-hole hermetic unit of well testing truck dropping-fishing test not only inner sealing surface has been taked anti-corrosion measure, reduced to cause joint ring and its frictional force because of sealing surface gets rusty, and the obscission of joint ring no longer appears in special test fuse, guaranteed the authenticity of test data, this device is only just annotated, and does not have water filling layer phenomenon in debt, guaranteed the authenticity of data, applied widely, there is not the phenomenon of shaking out in sand output well, but and the sealing of checking sealing of packer.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of no clock motor-pumped well down-off meter of the present utility model.

Fig. 3 is the manometric structural representation of no clock machine of the present utility model.

Fig. 4 is a recording card schematic diagram of the present utility model.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further: a kind of well testing truck pulling zonal testing device, it is characterized in that it comprises packer 16,17, constant pressure check valve 19, dropping-fishing test fuse 15, fishing head 13, no clock motor-pumped well down-off meter 12, no clock machine pressure gauge 29, packer 16,17, constant pressure check valve 19 is connected on the oil pipe 10 by screw thread, no clock motor-pumped well down-off meter 12, no clock machine pressure gauge 29 is connected on the dropping-fishing test fuse 15 by the screw thread of M24 * 1.5, fishing head 13 is connected with dropping-fishing test fuse 15, be in the center of test fuse 15, also be in the center of oil pipe 10, dropping-fishing test fuse 15 is contained in the inside of oil pipe 10.No clock motor-pumped well down-off meter 12 is made up of paper web 20, penholder 21, spring 22, connecting rod 23, float 24, Taper Pipe 25, paper web 20 is contained in no clock motor-pumped well down-off meter 12 inside, penholder 21 is connected on the spring 22, spring 22 is connected on the connecting rod 23, connecting rod 23 is connected on the float 24, Taper Pipe 25 is connected on the shell of no clock motor-pumped well down-off meter 12, and recording card 28 is attached to paper web 20 inside.No clock machine pressure gauge 29 is made up of paper web 20, penholder 21, spring 22, plunger 27, and paper web 20 is contained in no clock machine pressure gauge 29 inside, and spring 22 is connected on the penholder 21, and penholder 21 is connected on the plunger 27, and recording card 28 is attached to paper web 20 inside.

This device construction is simple, need not to increase other special installation and changes the well site pipeline.Construction sequence is as follows: 1, by fixed part under the operation team normal construction program lower going-into-well.Its depth of setting is undertaken by geologic requirements.2, in movable dropping-fishing test fuse 15 lower going-into-wells in partly with pierce tap by well testing truck, this moment packs into and extremely chews pack into no clock machine pressure gauge, screw thread 8 places of son, screw thread 6 places and do not adorn and appoint guarantor's thing in screw thread 2 places.Should align blowout prevention box 1 at well head earlier before removing, 11 pairs of good tachometers of taut wire watch the tachometer data to contrast whether depth of setting is identical with the depth of setting of geologic requirements after locating on the inclined-plane 7 down.3, well head pressurization 18-20MPa, keep half a minute then can, this moment, packer 17 should should be opened by a seat envelope constant pressure check valve 19.Then well head pressure is reduced to 10-15MPa from 20MPa, rise to 25MPa again and reduce to 0MPa.Trip out dropping-fishing test fuse 15, watch pressure card 28, as the figure among Fig. 4 occurs, packer 17 blow-by then are described, should find out reason or carry out next step construction Ex post again.4, after confirming packer sealing, chew according to the geology seperated layer water injection amount water that flow takes into account corresponding size that requires to pack into respectively at screw thread 2,6,8 places.Again with in dropping-fishing test fuse 15 lower going-into-wells.5, test fuse 15 certain seats after locating on the inclined-plane 7 according to the tachometer data acknowledgement, then can test.Can be with the water filling discharge capacity from little extremely big 4 discharge capacities that change.Whether every change once need be fallen increases discharge capacity 10-20 side/day again, changes for the second time, and test finishes and then can trip out instrument, watches card, calculate the injection allocation amount and meet with geologic requirements.6, after affirmation meets geologic requirements, take out flow meter.Drop into then normally water filling in the wells with installing the test fuse 15 that water chews.As verifying whether test fuse 15 puts in place.Only need to wait for about 10 minutes.Watch the ground water injection rate and when test water injection rate whether identically then can confirm.As water distribution quantity be not inconsistent then should repeat the 4th, 5 again the test once.No clock machine pressure gauge is identical with the operation of no clock machine flow meter, only need lay down shell, and the card of packing in paper web 20 is drawn baseline with hand, refills shell and then can.This be common well testing worker all at a glance will, do not need to do again other explanation.

Its course of work is as follows: after water under high pressure enters oil pipe 10, enter in the test fuse 15 by inlet opening 14, promotion is connected in float 24 activities in the no clock motor-pumped well down-off meter 12 at screw thread 2 places, drivening rod 23, spring 22, penholder 21 actions, recording card 28 figures that draw come, water under high pressure enters in the stratum 3 by Taper Pipe 25, then measures the size of the water yield; After entering oil pipe 10, water under high pressure enters in the test fuse 15 by inlet opening 14, promotion is connected in plunger 27 activities in the no clock machine pressure gauge 29 at screw thread 6, screw thread 8 places, drive spring 22, penholder 21 actions, recording card 28 figures that draw come, water under high pressure enters in the stratum 5,9 by screw thread 6,8, then measures the size of water injection pressure.

Claims

1, a kind of well testing truck pulling zonal testing device, it is characterized in that it comprises packer (16), (17), constant pressure check valve (19), dropping-fishing test fuse (15), fishing head (13), no clock motor-pumped well down-off meter (12), no clock machine pressure gauge (29), packer (16), (17), constant pressure check valve (19) is connected on the oil pipe (10) by screw thread, no clock motor-pumped well down-off meter (12), no clock machine pressure gauge (29) is connected on the dropping-fishing test fuse (15) by the screw thread of M24 * 1.5, fishing head (13) is connected with dropping-fishing test fuse (15), be in the center of test fuse (15), also be in the center of oil pipe (10), dropping-fishing test fuse (15) is contained in the inside of oil pipe (10).

2, well testing truck pulling zonal testing device according to claim 1, it is characterized in that not having clock motor-pumped well down-off meter (12) by paper web (20), penholder (21), spring (22), connecting rod (23), float (24), Taper Pipe (25) is formed, paper web (20) is contained in no clock motor-pumped well down-off meter (12) inside, penholder (21) is connected on the spring (22), spring (22) is connected on the connecting rod (23), connecting rod (23) is connected on the float (24), Taper Pipe (25) is connected on the shell of no clock motor-pumped well down-off meter (12), and recording card (28) is attached to paper web (20) inside.

3, well testing truck pulling zonal testing device according to claim 1, it is characterized in that not having clock machine pressure gauge (29) is made up of paper web (20), penholder (21), spring (22), plunger (27), paper web (20) is contained in no clock machine pressure gauge (29) inside, spring (22) is connected on the penholder (21), penholder (21) is connected on the plunger (27), and recording card (28) is attached to paper web (20) inside.