CN201620785U - Pressure-controlled hydraulic pushing tool - Google Patents

Pressure-controlled hydraulic pushing tool Download PDF

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Publication number
CN201620785U
CN201620785U CN2010201228741U CN201020122874U CN201620785U CN 201620785 U CN201620785 U CN 201620785U CN 2010201228741 U CN2010201228741 U CN 2010201228741U CN 201020122874 U CN201020122874 U CN 201020122874U CN 201620785 U CN201620785 U CN 201620785U
Authority
CN
China
Prior art keywords
connector
instrument
piston
cylinder
spring
Prior art date
Application number
CN2010201228741U
Other languages
Chinese (zh)
Inventor
尤立忠
赵立安
王庆
贾岩
Original Assignee
中国石油天然气股份有限公司
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Application filed by 中国石油天然气股份有限公司 filed Critical 中国石油天然气股份有限公司
Priority to CN2010201228741U priority Critical patent/CN201620785U/en
Application granted granted Critical
Publication of CN201620785U publication Critical patent/CN201620785U/en

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Abstract

The utility model provides a pressure-controlled hydraulic pushing tool which is applied to the delivery of an instrument for down-hole detection in an oil-field horizontal well. A step-shaped central hole and a transverse hole are formed at the lower end of an upper connecting body, a supporting ring is fixed inside the step-shaped central hole of the upper connecting body, a downwardly-convex cylinder is arranged in the center of the supporting ring, longitudinal through holes are formed on the supporting ring and distributed on the circumference of the cylinder, the upper connecting body is in thread connection with a lower connecting body, a cone-shaped end stopper is arranged at the lower end of the lower connecting body, a central hole and a transverse hole are formed at the upper end of the lower connecting body, a piston and a spring are arranged inside the central hole at the upper end of the lower connecting body, and the piston can slide inside the central hole of the lower connecting body. The utility model has the benefits that the pressure-controlled hydraulic pushing tool can push the well logging instrument in the horizontal well, helps to achieve the well logging under the condition that the well head is closed, improves the safety coefficient during the hydraulic transportation process and overcomes the problem that the well head is not plugged during the cable running process in the horizontal well logging operation, thereby resulting in the failure in closed-type water injection pressurization.

Description

Voltage-controlled waterpower pushes instrument

Technical field

The utility model relates to oil field downhole detection technical field, the special tool that the instrument in particularly a kind of horizontal well downhole detection process is carried.

Background technology

At present, horizontal well recovery ratio problem has become a key factor that influences the oil field overall yield.Operation exploitation along with horizontal well, the part well water rises soon, output descends, and fast situation is serious, thereby how to carry out the horizontal well production logging to understand the down-hole casing degree of impairment in good time, for horizontal well well stimulation optimization provides reliable basis, be the major subjects that the horizontal well engineering log faces.Horizontal well track approaches level, and logger is lowered to method and peupendicular hole has very big difference.Need special technique that logger is sent to the measuring well section in the well logging process, we are referred to as the logger conveying technology with this technology; Along with development of well logging technology, the logger conveying technology also is enhanced, and currently comparatively ripe is: interior the logger conveying technology of oil pipe (drilling rod), coiled tubing conveying and crawl device conveying technology.Shortcomings such as current instrument conveying technology exists the construction technology complexity, and the logging operation time is long, and operating risk is big.If downhole probe at down-hole and card, must carry out unfreezing by instrument.

The utility model content

The purpose of this utility model is: provide a kind of voltage-controlled waterpower to push instrument, be used for sending into of horizontal wellbore logging instrument, realize that the instrument of horizontal well monitoring is carried at downhole safety.

The technical solution adopted in the utility model is: voltage-controlled waterpower pushes instrument, mainly is made up of top connector, support ring, bottom connector, piston and spring; There is screw thread the upper end of top connector, can connect with the instrument polyphone.It is characterized in that: there is the stepped central hole connector lower end, top and transverse holes is arranged, the stepped central hole of top connector and transverse holes UNICOM.Be fixed with support ring in the connector shoulder hole of top, support ring is a disc, and the cylinder of downward protrusion is arranged at the support ring center, on support ring and cylinder week for longitudinal hole is arranged.

There is external screw thread the lower end of top connector, and the top connector is threaded with the bottom connector.The bottom connector is the cylinder bodily form, and the lower end of bottom connector is the end socket of cone shape, and there is centre bore the upper end of bottom connector and transverse holes is arranged, the centre bore of bottom connector and transverse holes UNICOM.In the centre bore of bottom connector upper end piston and spring are arranged, piston can slide in the connector centre bore of bottom, and spring is in lower part of piston.

The cylinder of protrusion is arranged at described piston bottom, and cylinder is inserted in the spring.

Described spring is the compression spring.

Smooth and easy for the highly pressurised liquid circulation, on the outer wall of top connector, guiding gutter is arranged, the transverse holes UNICOM of guiding gutter and top connector.

Smooth and easy for the highly pressurised liquid circulation, on the outer wall of bottom connector, guiding gutter is arranged, the transverse holes UNICOM of guiding gutter and bottom connector.

Voltage-controlled waterpower pushes the operating principle of instrument: consult Fig. 1.This voltage-controlled waterpower propelling movement instrument is used for the horizontal well test job.Voltage-controlled waterpower propelling movement instrument is connected to the instrument string bottom.The whole instrument string leans on gravity down to the position that is hampered.Rely on the ground water filling, making in the tubing string of instrument place increases, and when pressure is enough big, according to F=PS, will promotes instrument and move in horizontal segment, and instrument is delivered to the purpose degree of depth.Transverse holes and stepped central hole inner flow passage at top connector 1 form downward pressure, play to increase the effect that waterpower pushes power.

When the instrument string instrument that especially pushes occurs unusual stuck tubing string with the instrument of propelling movement in pit shaft, pressure increases, when building the pressure to a certain degree, piston 4 moves down, make and form runner in the propelling movement instrument, advance from the transverse holes of top connector 1, go out, avoid waterflood path by the situation of blocking from the transverse holes of bottom connector 3.

In addition, when occurring high-pressure fluid in the well and upwards gush, piston 4 moves up under the effect of high-pressure fluid, when piston 4 moves up the bottom that withstands on support ring 2 when protruding cylinder, fluid forms the highly pressurised liquid runner by the through hole of support ring 2, advances from the transverse holes of bottom connector 3, go out from the transverse holes of top connector 1, thereby improved safety factor.This propelling movement instrument external diameter is seriation, can choose according to different test strings.Spring 5 elastic force also are to choose according to the different pressures demand.

The beneficial effects of the utility model: the voltage-controlled waterpower of the utility model pushes instrument, can push logger in horizontal well, can log well under airtight well head situation.Do not use the pipe operation in the well logging process, the well logging construction risk reduces, and has improved the safety factor in the waterpower course of conveying.Having overcome horizontal wellbore logging can't seat shut-in well in cable is gone into the well process mouthful, can't implement the deficiency of airtight water filling pressurization.

Description of drawings

Fig. 1 is that the voltage-controlled waterpower of the utility model pushes the tool construction generalized section.

Among the figure, 1. top connector, 2. support ring, 3. bottom connector, 4. piston, 5. spring.

The specific embodiment

Embodiment 1: with a voltage-controlled waterpower propelling movement instrument is example, and the utility model is described in further detail.

Consult Fig. 1.The voltage-controlled waterpower of the utility model pushes instrument, mainly is made up of top connector 1, support ring 2, bottom connector 3, piston 4 and spring 5;

Connector 1 maximum outside diameter in top is 56mm.There is screw thread the upper end of top connector 1.There is the stepped central hole connector 1 lower end in top and 4 transverse holes is arranged, the stepped central hole of top connector 1 and transverse holes UNICOM.The diameter in stepped central hole is respectively 18mm and 30mm.Be fixed with support ring 2 in top connector 1 shoulder hole, support ring 2 is a disc, and the cylinder of downward protrusion is arranged at support ring 2 centers, and the cylinder of protrusion is arranged at piston 4 bottoms, and cylinder is inserted in the spring 5.All at support ring 2 cylinders for vertical hole is arranged.4 guiding gutter A are arranged on the outer wall of top connector (1), and the water conservancy diversion groove width is 8mm.The transverse holes UNICOM of guiding gutter A and top connector (1).

There are M 45 * 2 external screw threads the lower end of top connector 1, and top connector 1 is threaded with bottom connector (3).Bottom connector 3 is the cylinder bodily form, and the lower end of bottom connector 3 is end sockets of cone shape, and there is centre bore the upper end of bottom connector 3 and two diameters are arranged is the 20mm transverse holes, the centre bore of bottom connector 3 and transverse holes UNICOM.Piston 4 and compression spring 5 are arranged in bottom connector 3 upper end centre bores, and piston 4 can slide in bottom connector 3 centre bores, and spring 5 is in the bottom of piston 4.The guiding gutter that two wide 8mm are arranged on the outer wall of bottom connector 3, the transverse holes UNICOM of guiding gutter and bottom connector 3.

Spring 5 is dextrorotation, and number of active coils is 10.5 circles, length 55mm.

Support ring 2 external diameters are 30mm, with top connector 1 inner interference fit.Uniform four 7mm holes on the support ring 2, the cylinder that support ring 2 protrudes downwards is a support bar, cylinder diameter is 6mm.

Claims (5)

1. a voltage-controlled waterpower pushes instrument, mainly is made up of top connector (1), support ring (2), bottom connector (3), piston (4) and spring (5); There is screw thread the upper end of top connector (1), it is characterized in that: there is the stepped central hole top connector (1) lower end and transverse holes is arranged, the stepped central hole of top connector (1) and transverse holes UNICOM, in top connector (1) shoulder hole, be fixed with support ring (2), support ring (2) is a disc, the cylinder that downward protrusion is arranged at support ring (2) center, last and all for longitudinal hole is arranged at support ring (2) at cylinder;
There is external screw thread the lower end of top connector (1), top connector (1) is threaded with bottom connector (3), bottom connector (3) is the cylinder bodily form, the lower end of bottom connector (3) is the end socket of cone shape, there is centre bore the upper end of bottom connector (3) and transverse holes is arranged, the centre bore of bottom connector (3) and transverse holes UNICOM, in the centre bore of bottom connector (3) upper end, piston (4) and spring (5) are arranged, piston (4) can slide in bottom connector (3) centre bore, and spring (5) is in the bottom of piston (4).
2. voltage-controlled waterpower according to claim 1 pushes instrument, and it is characterized in that: the cylinder of protrusion is arranged at described piston (4) bottom, and cylinder is inserted in the spring (5).
3. voltage-controlled waterpower according to claim 1 pushes instrument, it is characterized in that: described spring (5) is the compression spring.
4. push instrument according to claim 1,2 or 3 described voltage-controlled waterpower, it is characterized in that: on the outer wall of top connector (1), guiding gutter is arranged, the transverse holes UNICOM of guiding gutter and top connector (1).
5. push instrument according to claim 1,2 or 3 described voltage-controlled waterpower, it is characterized in that: on the outer wall of bottom connector (3), guiding gutter is arranged, the transverse holes UNICOM of guiding gutter and bottom connector (3).
CN2010201228741U 2010-03-03 2010-03-03 Pressure-controlled hydraulic pushing tool CN201620785U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201228741U CN201620785U (en) 2010-03-03 2010-03-03 Pressure-controlled hydraulic pushing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201228741U CN201620785U (en) 2010-03-03 2010-03-03 Pressure-controlled hydraulic pushing tool

Publications (1)

Publication Number Publication Date
CN201620785U true CN201620785U (en) 2010-11-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201228741U CN201620785U (en) 2010-03-03 2010-03-03 Pressure-controlled hydraulic pushing tool

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CN (1) CN201620785U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103939084A (en) * 2014-04-18 2014-07-23 中国石油化工股份有限公司 Water injection propelling method for horizontal well testing instrument and controllable water injection propeller
CN104295284A (en) * 2013-07-19 2015-01-21 中国石油天然气股份有限公司 Voltage-controlled damping hydraulic pushing device
CN104373108B (en) * 2014-10-31 2017-07-07 绵阳固美科技有限公司 A kind of method and device for controlling downhole detection device to switch
CN108086933A (en) * 2016-11-21 2018-05-29 中国石油天然气股份有限公司 For the cable conveying device of horizontal well

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104295284A (en) * 2013-07-19 2015-01-21 中国石油天然气股份有限公司 Voltage-controlled damping hydraulic pushing device
CN103939084A (en) * 2014-04-18 2014-07-23 中国石油化工股份有限公司 Water injection propelling method for horizontal well testing instrument and controllable water injection propeller
CN103939084B (en) * 2014-04-18 2016-05-25 中国石油化工股份有限公司 The water filling propulsion method of horizontal well tester and controllable type water filling propeller
CN104373108B (en) * 2014-10-31 2017-07-07 绵阳固美科技有限公司 A kind of method and device for controlling downhole detection device to switch
CN108086933A (en) * 2016-11-21 2018-05-29 中国石油天然气股份有限公司 For the cable conveying device of horizontal well
CN108086933B (en) * 2016-11-21 2020-05-08 中国石油天然气股份有限公司 Cable conveying device for horizontal well

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GR01 Patent grant
C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20101103

CX01 Expiry of patent term