CN2156515Y

CN2156515Y - Horizontal well measurer

Info

Publication number: CN2156515Y
Application number: CN 93227635
Authority: CN
Inventors: 李群; 刘凤亮
Original assignee: Well Logging Co of Liaohe Petroleum Exploration Bureau
Current assignee: Well Logging Co of Liaohe Petroleum Exploration Bureau
Priority date: 1993-03-20
Filing date: 1993-03-20
Publication date: 1994-02-16
Anticipated expiration: 2003-03-20

Abstract

The utility model relates to a geophysical well logging device in a well used in the process of drilling a petroleum horizontal well, comprising a cable by-pass joint 2, drill stems 3 and 8, a positioning short joint 4, an insulating ring 5, a vibration damping ring 6, a sheath 9, a sheath centralizer 11, a director of the drill stems 12, a pushing and clamping device 7, a vibration damping device 19, a guiding device 20, an instrument matching long cylinder 22 and a directing short joint 26. The utility model is matched with a corresponding well logging instrument to obtain comprehensive geological data with high quality of the horizontal well. The utility model has the advantages of low cost, convenient operation, etc.

Description

Horizontal well measurer

The utility model relates to a kind of down-hole geophysical well logging device that is used for the petroleum horizontal well drilling process.

Horizontal well drilling is a new technology in oil drilling field, especially aspect the horizontal well test, at present with the interior horizontal wellbore logging device that does not still have the system that can measure the horizontal well geologic information comprehensively.Abroad, then along with the different mining of the logging method of adopting (as send method, flexible hose cable method etc. to brill method, drilling rod) with different well logging apparatus, but these apparatus cost height, key equipment is technical strong, manufacturing and maintenance difficulty are very big.

Task of the present utility model provides a kind of horizontal wellbore logging device that is applicable to the well logging of drilling rod localization method, and this apparatus cost is low, is convenient to operation, utilizes it can obtain high-quality horizontal well geologic information.

The utility model is to realize like this.It joins long tube 22 by cable side entry sub 2, drilling rod 3,8, orientation spool 4, dead ring 5, damping ring 6, sheath 9, sheath centralizer 11, drilling rod director 12 and card pushing device 7, vibration damper 19, guides 20, instrument and directed pipe nipple 26 is formed.The architectural feature and the assembled relation of this well logging apparatus are: drilling rod 3 two ends join with screw thread with cable side entry sub 2 and orientation spool 4 respectively, dead ring 5 and damping ring 6 are housed in the orientation spool 4, the other end interconnects with screw thread with joining long drill pipe 8, sheath 9, drilling rod director 12 successively, and sheath 9 outsides are set with sheath centralizer 11.Before the well logging, corresponding logging instrumentation string (resistivity, acoustic logging instrument string or radioactivity well logging instrument string) and card pushing device 7, vibration damper 19, guides 20, instrument are joined in the well logging apparatus of packing into after long tube 22,26 assemblings of directed pipe nipple according to the needs of data to be measured by above-mentioned assembling, be lowered to predetermined well depth with drill string, can log well accordingly.

The utility model has the advantages that, itself and resistivity, acoustic logging instrument string, radioactivity well logging instrument string are used obtain comprehensive, high-quality horizontal well geologic information.

Fig. 1 for the utility model at interior general structure synoptic diagram when resistivity, acoustic logging instrument string are housed.Wherein, 1-drilling rod; The 13-logging cable; 14-cable Malong head; The 15-instrument; 16-acoustic wave apparatus electronic circuit part; 10-acoustic wave apparatus sonic system part; 17-dual induction lateolog-8 coil system and electrode system.

Fig. 2 connects synoptic diagram for radioactivity well logging instrument polyphone.Wherein, 13,14,15 and Fig. 1 with; 21-compensate for electronic instrument; The 23-swivel adapter head; 24-density tool circuit part; 25-density instrument probe.

Fig. 3 is side entry sub 2 structural representations.

Fig. 4 is orientation spool 4 structural representations.

Fig. 5 is card pushing device 7 structural representations.

Fig. 6 is vibration damper 19 structural representations.

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

In the utility model, side entry sub 2(Fig. 3) forms by main body 27, cable location pin wheel 28, cable pressure cap 29, cushion block 30, mud leakproof module 31, sealed packing 32, packing undersetting 33, fixed support 34 and retaining valve 35, main body 27 upper and lower sides have the yin, yang screw thread that can be connected with drilling rod respectively, leave the mud circulation passage with axis near its center, a skew back is to leaving the duct that can install cable location pin wheel 28, cable pressure cap 29, cushion block 30, module 31, packing 32, packing undersetting 33, fixed support 34 and retaining valve 35 and cable with paralleling.Orientation spool 4(Fig. 4) be the pipe nipple of usefulness drill collar processing, the middle part internal diameter is greater than top and the bottom (can make card pushing device 7 be stuck in wherein), and the middle part inside surface has insulation course, and the step place of close bottom is provided with the cushion pad made from resilient material.Card pushing device 7(Fig. 5) by main body 36, push away card arm 37, high strength magnet 38 and spring leaf 39 and form, main body 36 usefulness stainless steels are made, there is through hole at its center, there is the pin thread that can be connected with logging instrumentation at two ends, and pushing away card arm 37 has 2 groups, 3 every group, be distributed on two cross sections of main body 36, each pushes away card arm 37 outsides a protrusion, and the inboard is embedded with high strength magnet 38, and the below is provided with spring leaf 39.Vibration damper 19(Fig. 6) forms by dashpot piston 41, back-moving spring 40, hydraulic regulation sheet 42, piston cylinder 43 and lower end cap 44, one end places dashpot piston 41 front group in the piston cylinder 43 that hydraulic spring grease cup sheet 42 is housed, its piston cylinder 43 outer ends are set with spring 40, piston cylinder 43 openings one end and lower end cap 44 link to each other with screw thread, leave slurry channel on the lower end cap 44.The helix that directed pipe nipple 26 peripheries have a circle to protrude, on the line of two end points of helix, the helix of projection is cut into the plane.

Claims

1, a kind of horizontal wellbore logging device with the petroleum horizontal well drilling process, by cable side entry sub 2, drilling rod 3,8, orientation spool 4, dead ring 5, damping ring 6, sheath 9, sheath centralizer 11, drilling rod director 12 and card pushing device 7, vibration damper 19, guides 20, instrument is joined long tube 22, directed pipe nipple 26 is formed, it is characterized in that: drilling rod 3 two ends join with screw thread with cable side entry sub 2 and orientation spool 4 respectively, dead ring 5 and damping ring 6 are housed in the orientation spool 4, its other end successively with join long drill pipe 8, sheath 9, drilling rod director 12 interconnects with screw thread, and sheath 9 outsides are set with sheath centralizer 11; Card pushing device 7, vibration damper 19, guides 20, instrument are joined in the well logging apparatus of packing into after 26 in long tube 22, directed pipe nipple are assembled with corresponding logging instrumentation string by above-mentioned assembling.

2, horizontal wellbore logging device according to claim 1, it is characterized in that, side entry sub 2 main bodys 27 upper and lower sides have the yin, yang screw thread that joins with drilling rod respectively, leave a mud circulation passage with axis near its center, a skew back is to leaving the duct that can install cable location pin wheel 28, cable pressure cap 29, cushion block 30, module 31, packing 32, packing undersetting 33, fixed support 34 and retaining valve 35 and cable with paralleling.

3, horizontal wellbore logging device according to claim 1, it is characterized in that orientation spool 4 is the pipe nipple of usefulness drill collar processing, the middle part internal diameter is greater than top and the bottom, the middle part inside surface has insulation course, and the step place of close bottom is provided with the cushion pad made from resilient material.

4, horizontal wellbore logging device according to claim 1, it is characterized in that, the main body 36 usefulness stainless steels of card pushing device 7 are made, there is through hole at its center, there is the pin thread that can be connected with logging instrumentation at two ends, are evenly equipped with 2 groups (3 every group) on two cross sections of main body and push away card arm 37, and each pushes away the card arm outside a protrusion, the inboard is embedded with high strength magnet 38, and the below is provided with spring leaf 39.

5, horizontal wellbore logging device according to claim 1, it is characterized in that, dashpot piston 41 front group of vibration damper 19 are equipped with hydraulic spring grease cup sheet 42 and place in the piston cylinder 43, the outer end of its piston cylinder is set with spring 40, piston cylinder 43 openings one end and lower end cap 44 link to each other with screw thread, leave slurry channel on the lower end cap 44.

6, horizontal well logging apparatus according to claim 1 is characterized in that, the helix that directed pipe nipple 26 peripheries have a circle to protrude, and on the line of two end points of helix, the helix of projection is cut into the plane.