CN2555396Y - Multiarm micromagnet well temp sleeve loss detector - Google Patents

Abstract

The utility model relates to a multi-arm micro-magnetic well temperature sleeve loss detector for detecting the dilapidation of sleeve pipes of oil water wells in oil fields. The detector is composed of a protective cap 1, an upper joint 3, a circuit protection casing 4, a circuit board 5, a motor 8, an upper seal joint 10, a connecting arm 15, a supporting arm 16, a temperature probe 14, a micro magnetic probe 34, a slide rod pressure-bearing casing 18, a correction inner cylinder 19, slide blocks 20, 28, an inner and an outer springs 21, 29, a screw rod 22, a slide shaft 26, a slide fixing cylinder 30, a lower protective cylinder 31 and a lower protective head 32. The detector has the advantages reasonable design, reliable work and convenient operation, and is capable of quickly and accurately detect the well temperature change and micro-magnetic change of a sleeve loss part of an oil water well and accurately judging sleeve loss situations and perforation substances; the detector provides reliable basis for well repair jobs.

Description

The little magnetic well temperature cover of multi-arm damage detecting instrument

The utility model relates to a kind of instrument that is used for oil field oil, the detection of well casing damage situation.

Along with the prolongation of oil field development time, the generation of faults such as oil, well casing damage, distortion is increased, directly affects the ordinary production of oil, well.In order to understand fully the position and the live telecast of oil, well casing damage, at present, on-the-spot being lowered in well with the heavy repair task plant equipment by heavy repair task troop usually is with the tubing string of lead stamp, drift size gauge tool to survey, this kind detection method workload is big, length consuming time, need employ more plant equipment and constructor, and be difficult to survey exactly position and the situation of knowing casing damage, to heavy repair task be difficult to provide accurately, reliable measure foundation.

The purpose of this utility model is to provide a kind of can fast, accurately record the damaged situation of Casing Failure, and the little magnetic well temperature cover of the multi-arm damage detecting instrument of measure foundation is provided for workover treatment.

The utility model is to realize like this.This detector is by helmet; connecting ring; top connection; the circuit protection shell; circuit board; motor is pressure cap fixedly; the motor stationary magazine creel; motor; motor fixing frame; last seal nipple; motor shaft; connecting pin; lead sealing-plug assembly; temp probe; linking arm; support arm; head is rotationally connected; the sliding bar bearing shell; set upright inner core; sliding shoe; inner spring; leading screw; on; the lower dead center switch; the sliding point connector; sliding axle; the lower seal head; sliding block; outer spring; the slip stationary magazine creel; following protection tube; under protect head; O-ring seal and little magnetic measurement probe are formed.Its structure, assembled relation are as follows: circuit protection shell upper end is connected with top connection with screw thread, is connected to helmet in the top connection, is provided with connecting ring therebetween; The motor stationary magazine creel is housed in the circuit protection shell, circuit board, motor fixedly pressure cap, motor and fixed mount are housed in the motor stationary magazine creel, the lower end is connected with last seal nipple with screw thread; The outside, last seal nipple lower end links to each other with linking arm by connecting pin, and the linking arm lower end joins by connecting pin and 4--8 telescopic probe, and each lower end of popping one's head in connects linking arm by under the connecting pin, and the linking arm lower end is connected with sliding block by connecting pin; Sliding block is sleeved on the slip stationary magazine creel, is set with outer spring on the slip stationary magazine creel, and the lower end is to be connected to down the protection tube under the screw thread, and following protection tube is to be connected to down the protection head under the screw thread; There is the sliding bar bearing shell last seal nipple below with the screw thread tipping, be equipped with in it and set upright inner core, lead sealing-plug assembly and temp probe are housed on it, the motor shaft bottom is stretched into and is set upright in the inner core, its lower end is connected with leading screw, connect sliding axle under the leading screw, be provided with top dead centre switch, sliding point connector and lower dead center switch therebetween; Sliding bar bearing shell upper and lower part is set with sliding shoe and lower slider respectively, and two sliding shoes link to each other with linking arm by support arm respectively, and slides up and down at its drive lower edge sliding bar bearing shell.When instrument removes in well, ground by cable control motor, motor shaft, head is rotationally connected, by screw mandrel revolving force is become slide down power, through the sliding point connector sliding axle is moved downward, the drive slide block moves downward, by support arm and linking arm compression inner spring, it is Φ 73mm that each probe is collapsed to external diameter.When instrument arrival measurement layer position, the motor backward rotation is controlled by cable in ground, feasible interior outer spring return, and probe opens, and is close to the borehole wall, forms equally distributed 8 orientation of 45.After little magnetic variation signal that little magnetic measurement probe is measured is handled by circuit part, deliver to ground through cable, optical cable, being installed in the signal that the well temperature probe on the seal nipple measures also is to deliver to ground after handling by circuit part, record on the hard disk by the ground-based computer processing, through the curve of these two parameters of printer output.Can accurately detect sleeve pipe damaged condition and perforating quality by the well temperature variation at measuring unit damage position and the minor variations of magnetic conductive media, for workover treatment provides foundation.

The utility model is reasonable in design, and reliable operation is easy to operate, utilizes it can measure the variation of well temperature and little magnetic variationization that the oil-water well cover decreases the position rapidly and accurately, cover damage situation and perforating quality is made accurate judgement, for workover treatment provides reliable basis.

Fig. 1 is a general structure schematic diagram of the present utility model.

Fig. 2 is the structural representation of little magnetic measurement probe.

Fig. 3 is well temperature probe and lead sealing-plug assembly installation situation sectional drawing.

Below in conjunction with accompanying drawing enforcement of the present utility model is described further.

As shown in the figure, the utility model is by helmet 1; connecting ring 2; top connection 3; circuit protection shell 4; circuit board 5; motor is pressure cap 6 fixedly; motor stationary magazine creel 7; motor 8; motor fixing frame 9; last seal nipple 10; motor shaft 11; connecting pin 12; lead sealing-plug assembly 13; temp probe 14; linking arm 15; support arm 16; be rotationally connected 17; sliding bar bearing shell 18; set upright inner core 19; sliding shoe 20; inner spring 21; leading screw 22; top dead centre switch 23; sliding point connector 24; lower dead center switch 25; sliding axle 26; lower seal head 27; sliding block 28; outer spring 29; slip stationary magazine creel 30; following protection tube 31; following protection 32; O-ring seal 33 and little magnetic measurement probe 34 are formed.Wherein little magnetic measurement pop one's head in 34 (see figure 2)s by probe bearing shell 37, probe go up pivot pin holder 35, probe top connection 36, magnet steel 38, measure coil 39, pop one's head in clamping cap 40 and the lower shaft pin holder 41 of popping one's head in form, can be made into 4 arms, 6 arms, 8 arms as required, evenly distribute along circumference.

Claims (2)

1, the little magnetic well temperature cover of a kind of multi-arm damage detecting instrument, by helmet (1), top connection (3), circuit protection shell (4), go up seal nipple (10), linking arm (15), support arm (16), sliding bar bearing shell (18), set upright inner core (19), sliding shoe (20), inner spring (21), outer spring (29), slip stationary magazine creel (30), protection tube (31) is formed down, it is characterized in that: circuit protection shell (4) upper end is connected with top connection (3) with screw thread, be connected to helmet (1) in the top connection, be provided with connecting ring (2) therebetween; Motor stationary magazine creel (7) is housed in the circuit protection shell (4), circuit board (5), motor fixedly pressure cap (6), motor (8) and fixed mount (9) are housed in it, the lower end is connected with last seal nipple (10) with screw thread; The outside, last seal nipple (10) lower end links to each other with linking arm (15) by connecting pin (12), linking arm (15) lower end is connected with a plurality of scalable little magnetic measurement probe (34) that is uniformly distributed along the circumference by connecting pin, each lower end of popping one's head in connects linking arm by under the connecting pin, and the linking arm lower end is connected with sliding block (28) by connecting pin; Sliding block (28) is sleeved on the slip stationary magazine creel (30), is set with outer spring (29) on the slip stationary magazine creel (30), is connected to down protection tube (31) under the screw thread of lower end, is connected to down protection head (32) under the following protection tube (31); There is sliding bar bearing shell (18) last seal nipple (10) below with the screw thread tipping, shell (18) middle part is set with inner spring (21), be equipped with in it and set upright inner core (19), lead sealing-plug assembly (13) and temp probe (14) are housed on it, motor shaft (11) bottom is stretched into and is set upright in the inner core (19), its lower end is connected with leading screw (22), connects sliding axle (26) under the leading screw (22), is provided with top dead centre switch (23), sliding point connector (24) and lower dead center switch (25) therebetween; Sliding bar bearing shell (18) upper and lower part is set with sliding shoe (20) and sliding block (29) respectively, and two sliding shoes link to each other with linking arm (15) by support arm (16) respectively, and slides up and down at its drive lower edge shell (18).

2, the little magnetic well temperature cover of multi-arm according to claim 1 damage detecting instrument, it is characterized in that, little magnetic measurement probe (34) is made up of probe bearing shell (37), last pivot pin holder (35), top connection (36), magnet steel (38), measurement coil (39), clamping nut (40) and lower shaft pin holder (41), can be made into 4 arms, 6 arms, 8 arms as required, evenly distribute along circumference.